coremedia

func CMAudioDeviceClockCreate ¶

func CMAudioDeviceClockCreate(allocator unsafe.Pointer, deviceUID unsafe.Pointer, clockOut unsafe.Pointer) int

func CMAudioDeviceClockCreateFromAudioDeviceID ¶

func CMAudioDeviceClockCreateFromAudioDeviceID(allocator unsafe.Pointer, deviceID uint, clockOut unsafe.Pointer) int

func CMAudioDeviceClockGetAudioDevice ¶

func CMAudioDeviceClockGetAudioDevice(clock unsafe.Pointer, deviceUIDOut unsafe.Pointer, deviceIDOut *uint, trackingDefaultDeviceOut *uint8) int

@function CMAudioDeviceClockGetAudioDevice @abstract Queries which CoreAudio device the clock is tracking. @discussion If a non-NULL deviceUID has been set, CMAudioDeviceClockGetAudioDevice returns the set UID, its associated ID, and *trackingDefaultDeviceOut == false. If a deviceID has been set directly, CMAudioDeviceClockGetAudioDevice returns NULL UID, the set device ID, and *trackingDefaultDeviceOut == false. If a NULL deviceUID has been set (which means "track the default device"), CMAudioDeviceClockGetAudioDevice returns NULL UID, the ID of the current default device, and *trackingDefaultDeviceOut == true.

func CMAudioDeviceClockSetAudioDeviceID ¶

func CMAudioDeviceClockSetAudioDeviceID(clock unsafe.Pointer, deviceID uint) int

func CMAudioDeviceClockSetAudioDeviceUID ¶

func CMAudioDeviceClockSetAudioDeviceUID(clock unsafe.Pointer, deviceUID unsafe.Pointer) int

func CMAudioFormatDescriptionCopyAsBigEndianSoundDescriptionBlockBuffer ¶

func CMAudioFormatDescriptionCopyAsBigEndianSoundDescriptionBlockBuffer(allocator unsafe.Pointer, audioFormatDescription unsafe.Pointer, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMAudioFormatDescriptionCopyAsBigEndianSoundDescriptionBlockBuffer @abstract Copies the contents of a CMAudioFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param audioFormatDescription CMAudioFormatDescription to be copied. @param flavor kCMSoundDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param blockBufferOut Receives new CMBlockBuffer containing SoundDescription data structure in big-endian byte ordering.

func CMAudioFormatDescriptionCreate ¶

func CMAudioFormatDescriptionCreate(allocator unsafe.Pointer, asbd *coreaudiotypes.AudioStreamBasicDescription, layoutSize uint, layout *coreaudiotypes.AudioChannelLayout, magicCookieSize uint, magicCookie unsafe.Pointer, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionBlockBuffer ¶

func CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionBlockBuffer(allocator unsafe.Pointer, soundDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionBlockBuffer @abstract Creates a CMAudioFormatDescription from a big-endian SoundDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMAudioFormatDescription object. May be NULL. @param soundDescriptionBlockBuffer CMBlockBuffer containing SoundDescription data structure in big-endian byte ordering. @param flavor kCMSoundDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param formatDescriptionOut Receives new CMAudioFormatDescription.

func CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionData ¶

func CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionData(allocator unsafe.Pointer, soundDescriptionData *uint8, size uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMAudioFormatDescriptionCreateFromBigEndianSoundDescriptionData @abstract Creates a CMAudioFormatDescription from a big-endian SoundDescription data structure. @param allocator Allocator to use for allocating the CMAudioFormatDescription object. May be NULL. @param soundDescriptionData SoundDescription data structure in big-endian byte ordering. @param size Size of SoundDescription data structure. @param flavor kCMSoundDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param formatDescriptionOut Receives new CMAudioFormatDescription.

func CMAudioFormatDescriptionCreateSummary ¶

func CMAudioFormatDescriptionCreateSummary(allocator unsafe.Pointer, formatDescriptionArray unsafe.Pointer, flags uint32, formatDescriptionOut unsafe.Pointer) int

@function CMAudioFormatDescriptionCreateSummary @abstract Creates a summary audio format description from an array of audio format descriptions. @discussion The summary format description will be canonical LPCM and deep enough in sample rate, channel layout and channel count to sensibly contain the result of decoding and mixing the constituent format descriptions.

func CMAudioFormatDescriptionEqual ¶

func CMAudioFormatDescriptionEqual(formatDescription unsafe.Pointer, otherFormatDescription unsafe.Pointer, equalityMask uint32, equalityMaskOut *uint32) uint8

func CMAudioFormatDescriptionGetChannelLayout ¶

func CMAudioFormatDescriptionGetChannelLayout(desc unsafe.Pointer, sizeOut *uint) *coreaudiotypes.AudioChannelLayout

func CMAudioFormatDescriptionGetFormatList ¶

func CMAudioFormatDescriptionGetFormatList(desc unsafe.Pointer, sizeOut *uint) *coreaudiotypes.AudioFormatListItem

func CMAudioFormatDescriptionGetMagicCookie ¶

func CMAudioFormatDescriptionGetMagicCookie(desc unsafe.Pointer, sizeOut *uint) unsafe.Pointer

func CMAudioFormatDescriptionGetMostCompatibleFormat ¶

func CMAudioFormatDescriptionGetMostCompatibleFormat(desc unsafe.Pointer) *coreaudiotypes.AudioFormatListItem

func CMAudioFormatDescriptionGetRichestDecodableFormat ¶

func CMAudioFormatDescriptionGetRichestDecodableFormat(desc unsafe.Pointer) *coreaudiotypes.AudioFormatListItem

func CMAudioFormatDescriptionGetStreamBasicDescription ¶

func CMAudioFormatDescriptionGetStreamBasicDescription(desc unsafe.Pointer) *coreaudiotypes.AudioStreamBasicDescription

func CMAudioSampleBufferCreateReadyWithPacketDescriptions ¶

func CMAudioSampleBufferCreateReadyWithPacketDescriptions(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, formatDescription unsafe.Pointer, numSamples int, presentationTimeStamp CMTime, packetDescriptions *coreaudiotypes.AudioStreamPacketDescription, sampleBufferOut unsafe.Pointer) int

func CMAudioSampleBufferCreateWithPacketDescriptions ¶

func CMAudioSampleBufferCreateWithPacketDescriptions(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, dataReady uint8, makeDataReadyCallback unsafe.Pointer, makeDataReadyRefcon unsafe.Pointer, formatDescription unsafe.Pointer, numSamples int, presentationTimeStamp CMTime, packetDescriptions *coreaudiotypes.AudioStreamPacketDescription, sampleBufferOut unsafe.Pointer) int

func CMAudioSampleBufferCreateWithPacketDescriptionsAndMakeDataReadyHandler ¶

func CMAudioSampleBufferCreateWithPacketDescriptionsAndMakeDataReadyHandler(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, dataReady uint8, formatDescription unsafe.Pointer, numSamples int, presentationTimeStamp CMTime, packetDescriptions *coreaudiotypes.AudioStreamPacketDescription, sampleBufferOut unsafe.Pointer, makeDataReadyHandler func(unsafe.Pointer) int) int

func CMBlockBufferAccessDataBytes ¶

func CMBlockBufferAccessDataBytes(theBuffer unsafe.Pointer, offset uint, length uint, temporaryBlock unsafe.Pointer, returnedPointerOut string) int

@function CMBlockBufferAccessDataBytes @abstract Accesses potentially noncontiguous data in a CMBlockBuffer. @discussion Used for accessing potentially noncontiguous data, this routine will return a pointer directly into the given CMBlockBuffer if possible, otherwise the data will be assembled and copied into the given temporary block and its pointer will be returned. @param theBuffer CMBlockBuffer to operate on. Must not be NULL @param offset Offset within the CMBlockBuffer's offset range. @param length Desired number of bytes to access at offset @param temporaryBlock A piece of memory, assumed to be at least length bytes in size. Must not be NULL @param returnedPointerOut Receives NULL if the desired amount of data could not be accessed at the given offset. Receives non-NULL if it could. The value returned will either be a direct pointer into the CMBlockBuffer or temporaryBlock Must not be NULL. @result Returns kCMBlockBufferNoErr if the desired amount of data could be accessed at the given offset.

func CMBlockBufferAppendBufferReference ¶

func CMBlockBufferAppendBufferReference(theBuffer unsafe.Pointer, targetBBuf unsafe.Pointer, offsetToData uint, dataLength uint, flags uint32) int

@function CMBlockBufferAppendBufferReference @abstract Adds a CMBlockBuffer reference to an existing CMBlockBuffer. @discussion Adds a buffer reference to (a possibly subset portion of) another CMBlockBuffer to an existing CMBlockBuffer. The CMBlockBuffer's total data length will be increased by the specified dataLength. Note that append operations are not thread safe, so care must be taken when appending to BlockBuffers that are used by multiple threads. @param theBuffer CMBlockBuffer to which the new CMBlockBuffer reference will be added. Must not be NULL @param targetBBuf CMBlockBuffer to refer to. This parameter must not be NULL. Unless the kCMBlockBufferPermitEmptyReferenceFlag is passed, it must not be empty and it must have a data length at least large enough to supply the data subset specified (i.e. offsetToData+dataLength bytes). @param offsetToData Offset within the target CMBlockBuffer at which the CMBlockBuffer should refer to data. @param dataLength Number of relevant data bytes, starting at offsetToData, within the target CMBlockBuffer. If zero, the target buffer's total available dataLength (starting at offsetToData) will be referenced. @param flags Feature and control flags @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferAppendMemoryBlock ¶

func CMBlockBufferAppendMemoryBlock(theBuffer unsafe.Pointer, memoryBlock unsafe.Pointer, blockLength uint, blockAllocator unsafe.Pointer, customBlockSource *CMBlockBufferCustomBlockSource, offsetToData uint, dataLength uint, flags uint32) int

@function CMBlockBufferAppendMemoryBlock @abstract Adds a memoryBlock to an existing CMBlockBuffer. @discussion Adds a memoryBlock to an existing CMBlockBuffer. The memory block may be statically allocated, dynamically allocated using the given allocator or not yet allocated. The CMBlockBuffer's total data length will be increased by the specified dataLength. If the kCMBlockBufferAssureMemoryNowFlag is set in the flags parameter, the memory block is allocated immediately using the blockAllocator or customBlockSource. Note that append operations are not thread safe, so care must be taken when appending to BlockBuffers that are used by multiple threads. @param theBuffer CMBlockBuffer to which the new memoryBlock will be added. Must not be NULL @param memoryBlock Block of memory to hold buffered data. If NULL, a memory block will be allocated when needed (via a call to CMBlockBufferAssureBlockMemory()) using the provided blockAllocator or customBlockSource. If non-NULL, the block will be used and will be deallocated when the CMBlockBuffer is finalized (i.e. released for the last time). @param blockLength Overall length of the memory block in bytes. Must not be zero. This is the size of the supplied memory block or the size to allocate if memoryBlock is NULL. @param blockAllocator Allocator to be used for allocating the memoryBlock, if memoryBlock is NULL. If memoryBlock is non-NULL, this allocator will be used to deallocate it if provided. Passing NULL will cause the default allocator (as set at the time of the call) to be used. Pass kCFAllocatorNull if no deallocation is desired. @param customBlockSource If non-NULL, it will be used for the allocation and freeing of the memory block (the blockAllocator parameter is ignored). If provided, and the memoryBlock parameter is NULL, its Allocate() routine must be non-NULL. Allocate will be called once, if successful, when the memoryBlock is allocated. Free() will be called once when the CMBlockBuffer is disposed. @param offsetToData Offset within the memoryBlock at which the CMBlockBuffer should refer to data. @param dataLength Number of relevant data bytes, starting at offsetToData, within the memory block. @param flags Feature and control flags @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferAssureBlockMemory ¶

func CMBlockBufferAssureBlockMemory(theBuffer unsafe.Pointer) int

@function CMBlockBufferAssureBlockMemory @abstract Assures all memory blocks in a CMBlockBuffer are allocated. @discussion Traverses the possibly complex CMBlockBuffer, allocating the memory for any constituent memory blocks that are not yet allocated. @param theBuffer CMBlockBuffer to operate on. Must not be NULL @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferCopyDataBytes ¶

func CMBlockBufferCopyDataBytes(theSourceBuffer unsafe.Pointer, offsetToData uint, dataLength uint, destination unsafe.Pointer) int

@function CMBlockBufferCopyDataBytes @abstract Copies bytes from a CMBlockBuffer into a provided memory area. @discussion This function is used to copy bytes out of a CMBlockBuffer into a provided piece of memory. It deals with the possibility of the desired range of data being noncontiguous. The function assumes that the memory at the destination is sufficient to hold the data. If length bytes of data are not available in the CMBlockBuffer, an error is returned and the contents of the destination are undefined. @param theSourceBuffer The buffer from which data will be copied into the destination @param offsetToData Offset within the source CMBlockBuffer at which the copy should begin. @param dataLength Number of bytes to copy, starting at offsetToData, within the source CMBlockBuffer. Must not be zero. @param destination Memory into which the data should be copied. @result Returns kCMBlockBufferNoErr if the copy succeeded, returns an error otherwise.

func CMBlockBufferCreateContiguous ¶

func CMBlockBufferCreateContiguous(structureAllocator unsafe.Pointer, sourceBuffer unsafe.Pointer, blockAllocator unsafe.Pointer, customBlockSource *CMBlockBufferCustomBlockSource, offsetToData uint, dataLength uint, flags uint32, blockBufferOut unsafe.Pointer) int

@function CMBlockBufferCreateContiguous @abstract Produces a CMBlockBuffer containing a contiguous copy of or reference to the data specified by the parameters. @discussion Produces a CMBlockBuffer containing a contiguous copy of or reference to the data specified by the parameters. The resulting new CMBlockBuffer may contain an allocated copy of the data, or may contain a contiguous CMBlockBuffer reference. If the kCMBlockBufferAlwaysCopyDataFlag is set in the flags parameter, the resulting CMBlockBuffer will contain an allocated copy of the data rather than a reference to sourceBuffer. @param structureAllocator Allocator to use for allocating the CMBlockBuffer object. NULL will cause the default allocator to be used. @param sourceBuffer CMBlockBuffer from which data will be copied or referenced. Must not be NULL nor empty, @param blockAllocator Allocator to be used for allocating the memoryBlock if a contiguous copy of the data is to be made. Passing NULL will cause the default allocator (as set at the time of the call) to be used. @param customBlockSource If non-NULL, it will be used for the allocation and freeing of the memory block (the blockAllocator parameter is ignored). If provided, and the memoryBlock parameter is NULL, its Allocate() routine must be non-NULL. Allocate will be called once, if successful, when the memoryBlock is allocated. Free() will be called once when the CMBlockBuffer is disposed. @param offsetToData Offset within the source CMBlockBuffer at which the new CMBlockBuffer should obtain data. @param dataLength Number of relevant data bytes, starting at offsetToData, within the source CMBlockBuffer. If zero, the target buffer's total available dataLength (starting at offsetToData) will be referenced. @param flags Feature and control flags @param blockBufferOut Receives newly-created CMBlockBuffer object with a retain count of 1. Must not be NULL. @result Returns kCMBlockBufferNoErr if successful

func CMBlockBufferCreateEmpty ¶

func CMBlockBufferCreateEmpty(structureAllocator unsafe.Pointer, subBlockCapacity uint32, flags uint32, blockBufferOut unsafe.Pointer) int

@function CMBlockBufferCreateEmpty @abstract Creates an empty CMBlockBuffer @discussion Creates an empty CMBlockBuffer, i.e. one which has no memory block nor reference to a CMBlockBuffer supplying bytes to it. It is ready to be populated using CMBlockBufferAppendMemoryBlock() and/or CMBlockBufferAppendBufferReference(). CMBlockBufferGetDataLength() will return zero for an empty CMBlockBuffer and CMBlockBufferGetDataPointer() and CMBlockBufferAssureBufferMemory() will fail. The memory for the CMBlockBuffer object will be allocated using the given allocator. If NULL is passed for the allocator, the default allocator is used. @param structureAllocator Allocator to use for allocating the CMBlockBuffer object. NULL will cause the default allocator to be used. @param subBlockCapacity Number of subBlocks the newBlockBuffer shall accommodate before expansion occurs. A value of zero means "do the reasonable default" @param flags Feature and control flags @param blockBufferOut Receives newly-created empty CMBlockBuffer object with retain count of 1. Must not be NULL. @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferCreateWithBufferReference ¶

func CMBlockBufferCreateWithBufferReference(structureAllocator unsafe.Pointer, bufferReference unsafe.Pointer, offsetToData uint, dataLength uint, flags uint32, blockBufferOut unsafe.Pointer) int

@function CMBlockBufferCreateWithBufferReference @abstract Creates a new CMBlockBuffer that refers to another CMBlockBuffer. @discussion Creates a new CMBlockBuffer that refers to (a possibly subset portion of) another CMBlockBuffer. The returned CMBlockBuffer may be further expanded using CMBlockBufferAppendMemoryBlock() and/or CMBlockBufferAppendBufferReference(). @param structureAllocator Allocator to use for allocating the CMBlockBuffer object. NULL will cause the default allocator to be used. @param bufferReference CMBlockBuffer to refer to. This parameter must not be NULL. Unless the kCMBlockBufferPermitEmptyReferenceFlag is passed, it must not be empty and it must have a data length at least large enough to supply the data subset specified (i.e. offsetToData+dataLength bytes). @param offsetToData Offset within the reference CMBlockBuffer at which the new CMBlockBuffer should refer to data. @param dataLength Number of relevant data bytes, starting at offsetToData, within the target CMBlockBuffer. @param flags Feature and control flags @param blockBufferOut Receives newly-created CMBlockBuffer object with a retain count of 1. Must not be NULL. @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferCreateWithMemoryBlock ¶

func CMBlockBufferCreateWithMemoryBlock(structureAllocator unsafe.Pointer, memoryBlock unsafe.Pointer, blockLength uint, blockAllocator unsafe.Pointer, customBlockSource *CMBlockBufferCustomBlockSource, offsetToData uint, dataLength uint, flags uint32, blockBufferOut unsafe.Pointer) int

@function CMBlockBufferCreateWithMemoryBlock @abstract Creates a new CMBlockBuffer backed by a memory block (or promise thereof). @discussion Creates a new CMBlockBuffer backed by a memory block. The memory block may be statically allocated, dynamically allocated using the given allocator (or customBlockSource) or not yet allocated. The returned CMBlockBuffer may be further expanded using CMBlockBufferAppendMemoryBlock() and/or CMBlockBufferAppendBufferReference(). If the kCMBlockBufferAssureMemoryNowFlag is set in the flags parameter, the memory block is allocated immediately using the blockAllocator or customBlockSource. @param structureAllocator Allocator to use for allocating the CMBlockBuffer object. NULL will cause the default allocator to be used. @param memoryBlock Block of memory to hold buffered data. If NULL, a memory block will be allocated when needed (via a call to CMBlockBufferAssureBlockMemory()) using the provided blockAllocator or customBlockSource. If non-NULL, the block will be used and will be deallocated when the new CMBlockBuffer is finalized (i.e. released for the last time). @param blockLength Overall length of the memory block in bytes. Must not be zero. This is the size of the supplied memory block or the size to allocate if memoryBlock is NULL. @param blockAllocator Allocator to be used for allocating the memoryBlock, if memoryBlock is NULL. If memoryBlock is non-NULL, this allocator will be used to deallocate it if provided. Passing NULL will cause the default allocator (as set at the time of the call) to be used. Pass kCFAllocatorNull if no deallocation is desired. @param customBlockSource If non-NULL, it will be used for the allocation and freeing of the memory block (the blockAllocator parameter is ignored). If provided, and the memoryBlock parameter is NULL, its Allocate() routine must be non-NULL. Allocate will be called once, if successful, when the memoryBlock is allocated. Free() will be called once when the CMBlockBuffer is disposed. @param offsetToData Offset within the memoryBlock at which the CMBlockBuffer should refer to data. @param dataLength Number of relevant data bytes, starting at offsetToData, within the memory block. @param flags Feature and control flags @param blockBufferOut Receives newly-created CMBlockBuffer object with a retain count of 1. Must not be NULL. @result Returns kCMBlockBufferNoErr if successful.

func CMBlockBufferFillDataBytes ¶

func CMBlockBufferFillDataBytes(fillByte int8, destinationBuffer unsafe.Pointer, offsetIntoDestination uint, dataLength uint) int

@function CMBlockBufferFillDataBytes @abstract Fills a CMBlockBuffer with a given byte value, replacing bytes in the underlying data blocks @discussion This function is used to fill bytes in a CMBlockBuffer's memory blocks with a given byte value. It deals with the possibility of the destination range of data being noncontiguous. CMBlockBufferAssureBlockMemory() is called on the given CMBlockBuffer. If desired range is subsequently not accessible in the CMBlockBuffer, an error is returned and the contents of the CMBlockBuffer are untouched. @param fillByte The value with which to fill the specified data range @param destinationBuffer CMBlockBuffer whose range of bytes will be filled. @param offsetIntoDestination Offset within the destination CMBlockBuffer at which filling should begin. @param dataLength Number of bytes to be filled, starting at offsetIntoDestination, in the destinationBuffer. If zero, the destinationBuffer's total available dataLength (starting at offsetToData) will be filled. @result Returns kCMBlockBufferNoErr if the fill succeeded, returns an error otherwise.

func CMBlockBufferGetDataLength ¶

func CMBlockBufferGetDataLength(theBuffer unsafe.Pointer) uint

@function CMBlockBufferGetDataLength @abstract Obtains the total data length reachable via a CMBlockBuffer. @discussion Obtains the total data length reachable via a CMBlockBuffer. This total is the sum of the dataLengths of the CMBlockBuffer's memoryBlocks and buffer references. Note that the dataLengths are the _portions_ of those constituents that this CMBlockBuffer subscribes to. This CMBlockBuffer presents a contiguous range of offsets from zero to its totalDataLength as returned by this routine. @param theBuffer CMBlockBuffer to examine. @result Returns the total data length available via this CMBlockBuffer, or zero if it is empty, NULL, or somehow invalid.

func CMBlockBufferGetDataPointer ¶

func CMBlockBufferGetDataPointer(theBuffer unsafe.Pointer, offset uint, lengthAtOffsetOut *uint, totalLengthOut *uint, dataPointerOut string) int

@function CMBlockBufferGetDataPointer @abstract Gains access to the data represented by a CMBlockBuffer. @discussion Gains access to the data represented by a CMBlockBuffer. A pointer into a memory block is returned which corresponds to the offset within the CMBlockBuffer. The number of bytes addressable at the pointer can also be returned. This length-at-offset may be smaller than the number of bytes actually available starting at the offset if the dataLength of the CMBlockBuffer is covered by multiple memory blocks (a noncontiguous CMBlockBuffer). The data pointer returned will remain valid as long as the original CMBlockBuffer is referenced - once the CMBlockBuffer is released for the last time, any pointers into it will be invalid. @param theBuffer CMBlockBuffer to operate on. Must not be NULL @param offset Offset within the buffer's offset range. @param lengthAtOffsetOut On return, contains the amount of data available at the specified offset. May be NULL. @param totalLengthOut On return, contains the block buffer's total data length (from offset 0). May be NULL. The caller can compare (offset+lengthAtOffset) with totalLength to determine whether the entire CMBlockBuffer has been referenced and whether it is possible to access the CMBlockBuffer's data with a contiguous reference. @param dataPointerOut On return, contains a pointer to the data byte at the specified offset; lengthAtOffset bytes are available at this address. May be NULL. @result Returns kCMBlockBufferNoErr if data was accessible at the specified offset within the given CMBlockBuffer, false otherwise.

func CMBlockBufferGetTypeID ¶

func CMBlockBufferGetTypeID() uint

@function CMBlockBufferGetTypeID @abstract Obtains the CoreFoundation type ID for the CMBlockBuffer type. @discussion Obtains the CoreFoundation type ID for the CMBlockBuffer type. @result Returns the CFTypeID corresponding to CMBlockBuffer.

func CMBlockBufferIsEmpty ¶

func CMBlockBufferIsEmpty(theBuffer unsafe.Pointer) uint8

@function CMBlockBufferIsEmpty @abstract Indicates whether the given CMBlockBuffer is empty. @discussion Indicates whether the given CMBlockBuffer is empty, i.e., devoid of any memoryBlocks or CMBlockBuffer references. Note that a CMBlockBuffer containing a not-yet allocated memoryBlock is not considered empty. @param theBuffer CMBlockBuffer to examine. Must not be NULL @result Returns the result of the emptiness test. Will return false if the CMBlockBuffer is NULL.

func CMBlockBufferIsRangeContiguous ¶

func CMBlockBufferIsRangeContiguous(theBuffer unsafe.Pointer, offset uint, length uint) uint8

@function CMBlockBufferIsRangeContiguous @abstract Determines whether the specified range within the given CMBlockBuffer is contiguous. @discussion Determines whether the specified range within the given CMBlockBuffer is contiguous. if CMBlockBufferGetDataPointer() were to be called with the same parameters, the returned pointer would address the desired number of bytes. @param theBuffer CMBlockBuffer to examine. Must not be NULL @param offset Offset within the buffer's offset range. @param length Desired number of bytes to access at offset. If zero, the number of bytes available at offset (dataLength – offset), contiguous or not, is used. @result Returns true if the specified range is contiguous within the CMBlockBuffer, false otherwise. Also returns false if the CMBlockBuffer is NULL or empty.

func CMBlockBufferReplaceDataBytes ¶

func CMBlockBufferReplaceDataBytes(sourceBytes unsafe.Pointer, destinationBuffer unsafe.Pointer, offsetIntoDestination uint, dataLength uint) int

@function CMBlockBufferReplaceDataBytes @abstract Copies bytes from a given memory block into a CMBlockBuffer, replacing bytes in the underlying data blocks @discussion This function is used to replace bytes in a CMBlockBuffer's memory blocks with those from a provided piece of memory. It deals with the possibility of the destination range of data being noncontiguous. CMBlockBufferAssureBlockMemory() is called on the given CMBlockBuffer. If desired range is subsequently not accessible in the CMBlockBuffer, an error is returned and the contents of the CMBlockBuffer are untouched. @param sourceBytes Memory block from which bytes are copied into the CMBlockBuffer @param destinationBuffer CMBlockBuffer whose range of bytes will be replaced by the sourceBytes. @param offsetIntoDestination Offset within the destination CMBlockBuffer at which replacement should begin. @param dataLength Number of bytes to be replaced, starting at offsetIntoDestination, in the destinationBuffer. @result Returns kCMBlockBufferNoErr if the replacement succeeded, returns an error otherwise.

func CMBufferQueueCallForEachBuffer ¶

func CMBufferQueueCallForEachBuffer(queue unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer) int

func CMBufferQueueContainsEndOfData ¶

func CMBufferQueueContainsEndOfData(queue unsafe.Pointer) uint8

@function CMBufferQueueContainsEndOfData @abstract Returns whether or not a CMBufferQueue has been marked with EOD. @result Whether or not the CMBufferQueue has been marked with EOD. If queue is NULL, true is returned (a NULL queue is considered to be empty, and permanently at EOD).

func CMBufferQueueCopyHead ¶

func CMBufferQueueCopyHead(queue unsafe.Pointer) unsafe.Pointer

@function CMBufferQueueCopyHead @abstract Retrieves & retains the next-to-dequeue buffer from a CMBufferQueue but leaves it in the queue. @discussion This follows CF "Copy" semantics -- it retains the returned buffer. Note that with non-FIFO queues it's not guaranteed that the next dequeue will return this particular buffer (if an intervening Enqueue adds a buffer that will dequeue next). @result The retained buffer. Will be NULL if the queue is empty.

func CMBufferQueueCreate ¶

func CMBufferQueueCreate(allocator unsafe.Pointer, capacity int, callbacks *CMBufferCallbacks, queueOut unsafe.Pointer) int

@function CMBufferQueueCreate @abstract Creates a CMBufferQueue object. @discussion On return, the caller owns the returned CMBufferQueue, and must release it when done with it.

func CMBufferQueueCreateWithHandlers ¶

func CMBufferQueueCreateWithHandlers(allocator unsafe.Pointer, capacity int, handlers *CMBufferHandlers, queueOut unsafe.Pointer) int

@function CMBufferQueueCreateWithHandlers @abstract Creates a CMBufferQueue object. @discussion On return, the caller owns the returned CMBufferQueue, and must release it when done with it.

func CMBufferQueueDequeueAndRetain ¶

func CMBufferQueueDequeueAndRetain(queue unsafe.Pointer) unsafe.Pointer

@function CMBufferQueueDequeueAndRetain @abstract Dequeues a buffer from a CMBufferQueue. @discussion The buffer is released by the queue, but it is also retained for the client. Buffer ownership is thereby transferred from queue to client. The client need not retain the buffer, but is responsible to release it when done with it. @result The dequeued buffer. Will be NULL if the queue is empty.

func CMBufferQueueDequeueIfDataReadyAndRetain ¶

func CMBufferQueueDequeueIfDataReadyAndRetain(queue unsafe.Pointer) unsafe.Pointer

@function CMBufferQueueDequeueIfDataReadyAndRetain @abstract Dequeues a buffer from a CMBufferQueue if it is ready. @discussion The buffer is released by the queue, but it is also retained for the client. Buffer ownership is thereby transferred from queue to client. The client need not retain the buffer, but is responsible to release it when done with it. @result The dequeued buffer. Will be NULL if the queue is empty, or if the buffer to be dequeued is not yet ready.

func CMBufferQueueEnqueue ¶

func CMBufferQueueEnqueue(queue unsafe.Pointer, buf unsafe.Pointer) int

@function CMBufferQueueEnqueue @abstract Enqueues a buffer onto a CMBufferQueue. @discussion The buffer is retained by the queue, so the client can safely release the buffer if it has no further use for it. If the compare callback is non-NULL, this API performs an insertion sort using that compare operation. If the validation callback is non-NULL, this API calls it; if it returns a nonzero OSStatus, the buffer will not be enqueued and this API will return the same error OSStatus.

func CMBufferQueueGetBufferCount ¶

func CMBufferQueueGetBufferCount(queue unsafe.Pointer) int

@function CMBufferQueueGetBufferCount @abstract Gets the number of buffers in the queue.

func CMBufferQueueGetHead ¶

func CMBufferQueueGetHead(queue unsafe.Pointer) unsafe.Pointer

@function CMBufferQueueGetHead @abstract Retrieves the next-to-dequeue buffer from a CMBufferQueue but leaves it in the queue. @discussion This follows CF "Get" semantics -- it does not retain the returned buffer. Note that with non-FIFO queues it's not guaranteed that the next dequeue will return this particular buffer (if an intervening Enqueue adds a buffer that will dequeue next). This function is deprecated in favor of CMBufferQueueCopyHead() which returns a retained buffer. When adopting CMBufferQueueCopyHead(), existing CFRetain() call on the buffer returned from this function must be removed. @result The buffer. Will be NULL if the queue is empty. Deprecated: since macOS 15.0.

func CMBufferQueueGetTotalSize ¶

func CMBufferQueueGetTotalSize(queue unsafe.Pointer) uint

@function CMBufferQueueGetTotalSize @abstract Gets the total size of all sample buffers of a CMBufferQueue. @discussion The total size of the CMBufferQueue is the sum of all the individual buffer sizes, as reported by the getTotalSize callback (provided to CMBufferQueueCreate). If there are no buffers in the queue, 0 will be returned.

func CMBufferQueueGetTypeID ¶

func CMBufferQueueGetTypeID() uint

@function CMBufferQueueGetTypeID @abstract Returns the CFTypeID of CMBufferQueue objects. @discussion You can check if a CFTypeRef object is actually a CMBufferQueue by comparing CFGetTypeID(object) with CMBufferQueueGetTypeID(). @result CFTypeID of CMBufferQueue objects.

func CMBufferQueueInstallTrigger ¶

func CMBufferQueueInstallTrigger(queue unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer, condition int32, time_ CMTime, triggerTokenOut unsafe.Pointer) int

@function CMBufferQueueInstallTrigger @abstract Installs a trigger on a CMBufferQueue. @discussion The returned trigger token can be passed to CMBufferQueueTestTrigger and CMBufferQueueRemoveTrigger. The triggerTokenOut parameter can be NULL (client doesn't need to test or remove trigger), and the callback parameter can be NULL (client doesn't need callbacks, but rather will explicitly test the trigger). One of these two parameters must be non-NULL, however, since an untestable trigger that does not perform a callback is meaningless. If the trigger condition is already true, CMBufferQueueInstallTrigger will call the callback. If it does this, it will first write the trigger token to *triggerTokenOut.

func CMBufferQueueInstallTriggerHandler ¶

func CMBufferQueueInstallTriggerHandler(queue unsafe.Pointer, condition int32, time_ CMTime, triggerTokenOut unsafe.Pointer, handler func(unsafe.Pointer)) int

@function CMBufferQueueInstallTriggerHandler @abstract Installs a trigger on a CMBufferQueue. @discussion The returned trigger token can be passed to CMBufferQueueTestTrigger and CMBufferQueueRemoveTrigger. The triggerTokenOut parameter can be NULL (client doesn't need to test or remove trigger), and the handler parameter can be NULL (client doesn't need callbacks, but rather will explicitly test the trigger). One of these two parameters must be non-NULL, however, since an untestable trigger that does not perform a callback is meaningless. If the trigger condition is already true, CMBufferQueueInstallTrigger will call the handler. If it does this, it will first write the trigger token to *triggerTokenOut.

func CMBufferQueueInstallTriggerHandlerWithIntegerThreshold ¶

func CMBufferQueueInstallTriggerHandlerWithIntegerThreshold(queue unsafe.Pointer, condition int32, threshold int, triggerTokenOut unsafe.Pointer, handler func(unsafe.Pointer)) int

@function CMBufferQueueInstallTriggerHandlerWithIntegerThreshold @abstract Installs a trigger on a CMBufferQueue. @discussion This function behaves the same way as CMBufferQueueInstallTriggerHandler() except the trigger is evaluated against the integer value rather than the time value.

func CMBufferQueueInstallTriggerWithIntegerThreshold ¶

func CMBufferQueueInstallTriggerWithIntegerThreshold(queue unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer, condition int32, threshold int, triggerTokenOut unsafe.Pointer) int

@function CMBufferQueueInstallTriggerWithIntegerThreshold @abstract Installs a trigger on a CMBufferQueue. @discussion This function behaves the same way as CMBufferQueueInstallTrigger() except the trigger is evaluated against the integer value rather than the time value.

func CMBufferQueueIsAtEndOfData ¶

func CMBufferQueueIsAtEndOfData(queue unsafe.Pointer) uint8

@function CMBufferQueueIsAtEndOfData @abstract Returns whether or not a CMBufferQueue has been marked with EOD, and is now empty. @result Whether or not the CMBufferQueue has been marked with EOD, and is now empty. If queue is NULL, true is returned (a NULL queue is considered to be empty, and permanently at EOD).

func CMBufferQueueIsEmpty ¶

func CMBufferQueueIsEmpty(queue unsafe.Pointer) uint8

@function CMBufferQueueIsEmpty @abstract Returns whether or not a CMBufferQueue is empty. @result Whether or not the CMBufferQueue is empty. If queue is NULL, true is returned.

func CMBufferQueueMarkEndOfData ¶

func CMBufferQueueMarkEndOfData(queue unsafe.Pointer) int

@function CMBufferQueueMarkEndOfData @abstract Marks a CMBufferQueue with EOD. @discussion All subsequent Enqueues will be rejected until CMBufferQueueReset is called. Subsequent Dequeues will succeed as long as the queue is not empty.

func CMBufferQueueRemoveTrigger ¶

func CMBufferQueueRemoveTrigger(queue unsafe.Pointer, triggerToken unsafe.Pointer) int

@function CMBufferQueueRemoveTrigger @abstract Removes a previously installed trigger from a CMBufferQueue. @discussion Triggers will automatically be removed when a queue is finalized. However, if more than one module has access to a queue, it may be hard for an individual module to know when the queue is finalized since other modules may retain it. To address this concern, modules should remove their triggers before they themselves are finalized.

func CMBufferQueueReset ¶

func CMBufferQueueReset(queue unsafe.Pointer) int

@function CMBufferQueueReset @abstract Resets a CMBufferQueue. Empties the queue, and clears any EOD mark. @discussion All buffers in the queue are released. Triggers are not removed, however, and will be called appropriately as the queue duration goes to zero.

func CMBufferQueueResetWithCallback ¶

func CMBufferQueueResetWithCallback(queue unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer) int

func CMBufferQueueSetValidationCallback ¶

func CMBufferQueueSetValidationCallback(queue unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer) int

@function CMBufferQueueSetValidationCallback @abstract Sets a function that CMBufferQueueEnqueue will call to validate buffers before adding them to the queue.

func CMBufferQueueSetValidationHandler ¶

func CMBufferQueueSetValidationHandler(queue unsafe.Pointer, handler func(unsafe.Pointer, unsafe.Pointer) int) int

@function CMBufferQueueSetValidationHandler @abstract Sets a block that CMBufferQueueEnqueue will call to validate buffers before adding them to the queue. @discussion Both a validation callback and a validation handler can be set at the same time, in which case they will both be called when enqueueing buffers. They both need to return noErr for the buffer to be enqueued.

func CMBufferQueueTestTrigger ¶

func CMBufferQueueTestTrigger(queue unsafe.Pointer, triggerToken unsafe.Pointer) uint8

@function CMBufferQueueTestTrigger @abstract Tests whether the trigger condition is true. @discussion Whereas the trigger callback will only be called when the condition goes from false to true, CMBufferQueueTestTrigger always returns the condition's current status. The triggerToken must be one that has been installed on this queue.

func CMClockConvertHostTimeToSystemUnits ¶

func CMClockConvertHostTimeToSystemUnits(hostTime CMTime) uint64

func CMClockGetAnchorTime ¶

func CMClockGetAnchorTime(clock unsafe.Pointer, clockTimeOut *CMTime, referenceClockTimeOut *CMTime) int

func CMClockGetHostTimeClock ¶

func CMClockGetHostTimeClock() unsafe.Pointer

func CMClockGetTypeID ¶

func CMClockGetTypeID() uint

func CMClockInvalidate ¶

func CMClockInvalidate(clock unsafe.Pointer)

func CMClockMightDrift ¶

func CMClockMightDrift(clock unsafe.Pointer, otherClock unsafe.Pointer) uint8

func CMClosedCaptionFormatDescriptionCopyAsBigEndianClosedCaptionDescriptionBlockBuffer ¶

func CMClosedCaptionFormatDescriptionCopyAsBigEndianClosedCaptionDescriptionBlockBuffer(allocator unsafe.Pointer, closedCaptionFormatDescription unsafe.Pointer, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMClosedCaptionFormatDescriptionCopyAsBigEndianClosedCaptionDescriptionBlockBuffer @abstract Copies the contents of a CMClosedCaptionFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param closedCaptionFormatDescription CMClosedCaptionFormatDescription to be copied. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param blockBufferOut Receives new CMBlockBuffer containing ClosedCaptionDescription data structure in big-endian byte ordering.

func CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionBlockBuffer ¶

func CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionBlockBuffer(allocator unsafe.Pointer, closedCaptionDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionBlockBuffer @abstract Creates a CMClosedCaptionFormatDescription from a big-endian ClosedCaptionDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMClosedCaptionFormatDescription object. May be NULL. @param closedCaptionDescriptionBlockBuffer CMBlockBuffer containing ClosedCaptionDescription data structure in big-endian byte ordering. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMClosedCaptionFormatDescription.

func CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionData ¶

func CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionData(allocator unsafe.Pointer, closedCaptionDescriptionData *uint8, size uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMClosedCaptionFormatDescriptionCreateFromBigEndianClosedCaptionDescriptionData @abstract Creates a CMClosedCaptionFormatDescription from a big-endian ClosedCaptionDescription data structure. @param allocator Allocator to use for allocating the CMClosedCaptionFormatDescription object. May be NULL. @param closedCaptionDescriptionData ClosedCaptionDescription data structure in big-endian byte ordering. @param size Size of ClosedCaptionDescription data structure. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMClosedCaptionFormatDescription.

func CMCopyDictionaryOfAttachments ¶

func CMCopyDictionaryOfAttachments(allocator unsafe.Pointer, target unsafe.Pointer, attachmentMode uint32) unsafe.Pointer

@function CMCopyDictionaryOfAttachments @abstract Returns all attachments of a CMAttachmentBearer @discussion CMCopyDictionaryOfAttachments is a convenience call that returns all attachments with their corresponding keys in a new CFDictionary that the caller must dispose by calling CFRelease. Given a CVBufferRef, CMCopyDictionaryOfAttachments is similar to CVBufferGetAttachments, except that CVBufferGetAttachments returns a CFDictionary that may change if attachments are added later. @param allocator Allocator for the new dictionary; pass kCFAllocatorDefault or NULL to use the default allocator. @param target Target CMAttachmentBearer. @result A CFDictionary with all buffer attachments identified by there keys. If no attachment is present, NULL is returned. Returns NULL for invalid attachment mode.

func CMDoesBigEndianSoundDescriptionRequireLegacyCBRSampleTableLayout ¶

func CMDoesBigEndianSoundDescriptionRequireLegacyCBRSampleTableLayout(soundDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer) uint8

@function CMDoesBigEndianSoundDescriptionRequireLegacyCBRSampleTableLayout @abstract Examine a big-endian SoundDescription data structure in a CMBlockBuffer, and report whether the sample tables will need to use the legacy CBR layout. @param soundDescriptionBlockBuffer CMBlockBuffer containing SoundDescription data structure in big-endian byte ordering. @param flavor kCMSoundDescriptionFlavor constant or NULL for QuickTimeMovie flavor.

func CMFormatDescriptionCreate ¶

func CMFormatDescriptionCreate(allocator unsafe.Pointer, mediaType uint, mediaSubType uint, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMFormatDescriptionEqual ¶

func CMFormatDescriptionEqual(formatDescription unsafe.Pointer, otherFormatDescription unsafe.Pointer) uint8

func CMFormatDescriptionEqualIgnoringExtensionKeys ¶

func CMFormatDescriptionEqualIgnoringExtensionKeys(formatDescription unsafe.Pointer, otherFormatDescription unsafe.Pointer, formatDescriptionExtensionKeysToIgnore unsafe.Pointer, sampleDescriptionExtensionAtomKeysToIgnore unsafe.Pointer) uint8

func CMFormatDescriptionGetExtension ¶

func CMFormatDescriptionGetExtension(desc unsafe.Pointer, extensionKey unsafe.Pointer) unsafe.Pointer

func CMFormatDescriptionGetExtensions ¶

func CMFormatDescriptionGetExtensions(desc unsafe.Pointer) unsafe.Pointer

func CMFormatDescriptionGetMediaSubType ¶

func CMFormatDescriptionGetMediaSubType(desc unsafe.Pointer) uint

func CMFormatDescriptionGetMediaType ¶

func CMFormatDescriptionGetMediaType(desc unsafe.Pointer) uint

func CMFormatDescriptionGetTypeID ¶

func CMFormatDescriptionGetTypeID() uint

func CMGetAttachment ¶

func CMGetAttachment(target unsafe.Pointer, key unsafe.Pointer, attachmentModeOut *uint32) unsafe.Pointer

@function CMGetAttachment @abstract Returns a specific attachment of a CMAttachmentBearer @discussion You can attach any CF object to a CMAttachmentBearer to store additional information. CMGetAttachment retrieves an attachment identified by a key. Given a CVBufferRef, CMGetAttachment is equivalent to CVBufferGetAttachment. @param target Target CMAttachmentBearer. @param key Key in form of a CFString identifying the desired attachment. @param attachmentModeOut Returns the mode of the attachment, if desired. May be NULL. @result If found the attachment object; else NULL.

func CMMemoryPoolCreate ¶

func CMMemoryPoolCreate(options unsafe.Pointer) unsafe.Pointer

@function CMMemoryPoolCreate @abstract Creates a new CMMemoryPool.

func CMMemoryPoolFlush ¶

func CMMemoryPoolFlush(pool unsafe.Pointer)

@function CMMemoryPoolFlush @abstract Deallocates all memory the pool was holding for recycling.

func CMMemoryPoolGetAllocator ¶

func CMMemoryPoolGetAllocator(pool unsafe.Pointer) unsafe.Pointer

@function CMMemoryPoolGetAllocator @abstract Returns the pool's CFAllocator.

func CMMemoryPoolGetTypeID ¶

func CMMemoryPoolGetTypeID() uint

func CMMemoryPoolInvalidate ¶

func CMMemoryPoolInvalidate(pool unsafe.Pointer)

@function CMMemoryPoolInvalidate @abstract Stops the pool from recycling. @discussion When CMMemoryPoolInvalidate is called the pool's allocator stops recycling memory. The pool deallocates any memory it was holding for recycling. This also happens when the retain count of the CMMemoryPool drops to zero, except that under GC it may be delayed.

func CMMetadataCreateIdentifierForKeyAndKeySpace ¶

func CMMetadataCreateIdentifierForKeyAndKeySpace(allocator unsafe.Pointer, key unsafe.Pointer, keySpace unsafe.Pointer, identifierOut unsafe.Pointer) int

func CMMetadataCreateKeyFromIdentifier ¶

func CMMetadataCreateKeyFromIdentifier(allocator unsafe.Pointer, identifier unsafe.Pointer, keyOut unsafe.Pointer) int

func CMMetadataCreateKeyFromIdentifierAsCFData ¶

func CMMetadataCreateKeyFromIdentifierAsCFData(allocator unsafe.Pointer, identifier unsafe.Pointer, keyOut unsafe.Pointer) int

func CMMetadataCreateKeySpaceFromIdentifier ¶

func CMMetadataCreateKeySpaceFromIdentifier(allocator unsafe.Pointer, identifier unsafe.Pointer, keySpaceOut unsafe.Pointer) int

func CMMetadataDataTypeRegistryDataTypeConformsToDataType ¶

func CMMetadataDataTypeRegistryDataTypeConformsToDataType(dataType unsafe.Pointer, conformsToDataType unsafe.Pointer) uint8

func CMMetadataDataTypeRegistryDataTypeIsBaseDataType ¶

func CMMetadataDataTypeRegistryDataTypeIsBaseDataType(dataType unsafe.Pointer) uint8

func CMMetadataDataTypeRegistryDataTypeIsRegistered ¶

func CMMetadataDataTypeRegistryDataTypeIsRegistered(dataType unsafe.Pointer) uint8

func CMMetadataDataTypeRegistryGetBaseDataTypeForConformingDataType ¶

func CMMetadataDataTypeRegistryGetBaseDataTypeForConformingDataType(dataType unsafe.Pointer) unsafe.Pointer

func CMMetadataDataTypeRegistryGetBaseDataTypes ¶

func CMMetadataDataTypeRegistryGetBaseDataTypes() unsafe.Pointer

func CMMetadataDataTypeRegistryGetConformingDataTypes ¶

func CMMetadataDataTypeRegistryGetConformingDataTypes(dataType unsafe.Pointer) unsafe.Pointer

func CMMetadataDataTypeRegistryGetDataTypeDescription ¶

func CMMetadataDataTypeRegistryGetDataTypeDescription(dataType unsafe.Pointer) unsafe.Pointer

func CMMetadataDataTypeRegistryRegisterDataType ¶

func CMMetadataDataTypeRegistryRegisterDataType(dataType unsafe.Pointer, description unsafe.Pointer, conformingDataTypes unsafe.Pointer) int

func CMMetadataFormatDescriptionCopyAsBigEndianMetadataDescriptionBlockBuffer ¶

func CMMetadataFormatDescriptionCopyAsBigEndianMetadataDescriptionBlockBuffer(allocator unsafe.Pointer, metadataFormatDescription unsafe.Pointer, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMMetadataFormatDescriptionCopyAsBigEndianMetadataDescriptionBlockBuffer @abstract Copies the contents of a CMMetadataFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param metadataFormatDescription CMMetadataFormatDescriptionRef to be copied. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param blockBufferOut Receives new CMBlockBuffer containing MetadataDescription data structure in big-endian byte ordering.

func CMMetadataFormatDescriptionCreateByMergingMetadataFormatDescriptions ¶

func CMMetadataFormatDescriptionCreateByMergingMetadataFormatDescriptions(allocator unsafe.Pointer, sourceDescription unsafe.Pointer, otherSourceDescription unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionBlockBuffer ¶

func CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionBlockBuffer(allocator unsafe.Pointer, metadataDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionBlockBuffer @abstract Creates a CMMetadataFormatDescription from a big-endian MetadataDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMMetadataFormatDescription object. May be NULL. @param metadataDescriptionBlockBuffer CMBlockBuffer containing MetadataDescription data structure in big-endian byte ordering. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMMetadataFormatDescriptionRef.

func CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionData ¶

func CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionData(allocator unsafe.Pointer, metadataDescriptionData *uint8, size uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMMetadataFormatDescriptionCreateFromBigEndianMetadataDescriptionData @abstract Creates a CMMetadataFormatDescription from a big-endian MetadataDescription data structure. @param allocator Allocator to use for allocating the CMMetadataFormatDescription object. May be NULL. @param metadataDescriptionData MetadataDescription data structure in big-endian byte ordering. @param size Size of MetadataDescription data structure. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMMetadataFormatDescriptionRef.

func CMMetadataFormatDescriptionCreateWithKeys ¶

func CMMetadataFormatDescriptionCreateWithKeys(allocator unsafe.Pointer, metadataType uint, keys unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMMetadataFormatDescriptionCreateWithMetadataFormatDescriptionAndMetadataSpecifications ¶

func CMMetadataFormatDescriptionCreateWithMetadataFormatDescriptionAndMetadataSpecifications(allocator unsafe.Pointer, sourceDescription unsafe.Pointer, metadataSpecifications unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMMetadataFormatDescriptionCreateWithMetadataSpecifications ¶

func CMMetadataFormatDescriptionCreateWithMetadataSpecifications(allocator unsafe.Pointer, metadataType uint, metadataSpecifications unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMMetadataFormatDescriptionGetIdentifiers ¶

func CMMetadataFormatDescriptionGetIdentifiers(desc unsafe.Pointer) unsafe.Pointer

func CMMetadataFormatDescriptionGetKeyWithLocalID ¶

func CMMetadataFormatDescriptionGetKeyWithLocalID(desc unsafe.Pointer, localKeyID uint) unsafe.Pointer

func CMMuxedFormatDescriptionCreate ¶

func CMMuxedFormatDescriptionCreate(allocator unsafe.Pointer, muxType uint, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMPropagateAttachments ¶

func CMPropagateAttachments(source unsafe.Pointer, destination unsafe.Pointer)

@function CMPropagateAttachments @abstract Copy all propagatable attachments from one buffer to another. @discussion CMPropagateAttachments is a convenience call that copies all attachments with a mode of kCMAttachmentMode_ShouldPropagate from one buffer to another. Given a CVBufferRef, CMPropagateAttachments is equivalent to CVBufferPropagateAttachments. @param source CMAttachmentBearer to copy attachments from. @param destination CMAttachmentBearer to copy attachments to.

func CMRemoveAllAttachments ¶

func CMRemoveAllAttachments(target unsafe.Pointer)

@function CMRemoveAllAttachments @abstract Removes all attachments of a CMAttachmentBearer @discussion While CMRemoveAttachment removes a specific attachment identified by a key CMRemoveAllAttachments removes all attachments of a buffer and decrements their retain counts. Given a CVBufferRef, CMRemoveAllAttachments is equivalent to CVBufferRemoveAllAttachments. @param target Target CMAttachmentBearer.

func CMRemoveAttachment ¶

func CMRemoveAttachment(target unsafe.Pointer, key unsafe.Pointer)

@function CMRemoveAttachment @abstract Removes a specific attachment of a CMAttachmentBearer @discussion CMRemoveAttachment removes an attachment identified by a key. If found the attachment is removed and the retain count decremented. Given a CVBufferRef, CMRemoveAttachment is equivalent to CVBufferRemoveAttachment. @param target Target CMAttachmentBearer. @param key Key in form of a CFString identifying the desired attachment.

func CMSampleBufferCallBlockForEachSample ¶

func CMSampleBufferCallBlockForEachSample(sbuf unsafe.Pointer, handler func(unsafe.Pointer, int) unsafe.Pointer) int

func CMSampleBufferCallForEachSample ¶

func CMSampleBufferCallForEachSample(sbuf unsafe.Pointer, callback unsafe.Pointer, refcon unsafe.Pointer) int

func CMSampleBufferCopyPCMDataIntoAudioBufferList ¶

func CMSampleBufferCopyPCMDataIntoAudioBufferList(sbuf unsafe.Pointer, frameOffset int32, numFrames int32, bufferList *coreaudiotypes.AudioBufferList) int

func CMSampleBufferCopySampleBufferForRange ¶

func CMSampleBufferCopySampleBufferForRange(allocator unsafe.Pointer, sbuf unsafe.Pointer, sampleRange corefoundation.CFRange, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreate ¶

func CMSampleBufferCreate(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, dataReady uint8, makeDataReadyCallback unsafe.Pointer, makeDataReadyRefcon unsafe.Pointer, formatDescription unsafe.Pointer, numSamples int, numSampleTimingEntries int, sampleTimingArray *CMSampleTimingInfo, numSampleSizeEntries int, sampleSizeArray *uint, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateCopy ¶

func CMSampleBufferCreateCopy(allocator unsafe.Pointer, sbuf unsafe.Pointer, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateCopyWithNewTiming ¶

func CMSampleBufferCreateCopyWithNewTiming(allocator unsafe.Pointer, originalSBuf unsafe.Pointer, numSampleTimingEntries int, sampleTimingArray *CMSampleTimingInfo, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateForImageBuffer ¶

func CMSampleBufferCreateForImageBuffer(allocator unsafe.Pointer, imageBuffer unsafe.Pointer, dataReady uint8, makeDataReadyCallback unsafe.Pointer, makeDataReadyRefcon unsafe.Pointer, formatDescription unsafe.Pointer, sampleTiming *CMSampleTimingInfo, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateForImageBufferWithMakeDataReadyHandler ¶

func CMSampleBufferCreateForImageBufferWithMakeDataReadyHandler(allocator unsafe.Pointer, imageBuffer unsafe.Pointer, dataReady uint8, formatDescription unsafe.Pointer, sampleTiming *CMSampleTimingInfo, sampleBufferOut unsafe.Pointer, makeDataReadyHandler func(unsafe.Pointer) int) int

func CMSampleBufferCreateForTaggedBufferGroup ¶

func CMSampleBufferCreateForTaggedBufferGroup(allocator unsafe.Pointer, taggedBufferGroup unsafe.Pointer, sbufPTS CMTime, sbufDuration CMTime, formatDescription unsafe.Pointer, sBufOut unsafe.Pointer) int

@function CMSampleBufferCreateForTaggedBufferGroup @abstract Creates a new CMSampleBuffer object with the specified CMTaggedBufferGroup. @param allocator CFAllocator with which to create the CMSampleBuffer object. Pass kCFAllocatorDefault to use the default allocator. @param taggedBufferGroup The CMTaggedBufferGroup to be stored in the sample buffer. The CMSampleBuffer will retain the CMTaggedBufferGroup internally. @param sbufPTS Media time PTS of the sample buffer. @param sbufDuration Media time duration of the sample buffer. Can be kCMTimeInvalid if not known or not defined. @param formatDescription A CMTaggedBufferGroupFormatDescription describing the CMTaggedBufferGroup. You may create this with CMTaggedBufferGroupFormatDescriptionCreateForTaggedBufferGroup. If you are creating a lot of CMSampleBuffers containing matching CMTaggedBufferGroups, it is more efficient to create the CMTaggedBufferGroupFormatDescription once and use it for all of the CMSampleBuffers. You may call CMTaggedBufferGroupFormatDescriptionMatchesTaggedBufferGroup to confirm that a reused CMTaggedBufferGroupFormatDescription matches a new CMTaggedBufferGroup. @param sBufOut Returned newly created CMSampleBuffer. @result OSStatus with error or noErr if successful.

func CMSampleBufferCreateReady ¶

func CMSampleBufferCreateReady(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, formatDescription unsafe.Pointer, numSamples int, numSampleTimingEntries int, sampleTimingArray *CMSampleTimingInfo, numSampleSizeEntries int, sampleSizeArray *uint, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateReadyWithImageBuffer ¶

func CMSampleBufferCreateReadyWithImageBuffer(allocator unsafe.Pointer, imageBuffer unsafe.Pointer, formatDescription unsafe.Pointer, sampleTiming *CMSampleTimingInfo, sampleBufferOut unsafe.Pointer) int

func CMSampleBufferCreateWithMakeDataReadyHandler ¶

func CMSampleBufferCreateWithMakeDataReadyHandler(allocator unsafe.Pointer, dataBuffer unsafe.Pointer, dataReady uint8, formatDescription unsafe.Pointer, numSamples int, numSampleTimingEntries int, sampleTimingArray *CMSampleTimingInfo, numSampleSizeEntries int, sampleSizeArray *uint, sampleBufferOut unsafe.Pointer, makeDataReadyHandler func(unsafe.Pointer) int) int

func CMSampleBufferDataIsReady ¶

func CMSampleBufferDataIsReady(sbuf unsafe.Pointer) uint8

func CMSampleBufferGetAudioBufferListWithRetainedBlockBuffer ¶

func CMSampleBufferGetAudioBufferListWithRetainedBlockBuffer(sbuf unsafe.Pointer, bufferListSizeNeededOut *uint, bufferListOut *coreaudiotypes.AudioBufferList, bufferListSize uint, blockBufferStructureAllocator unsafe.Pointer, blockBufferBlockAllocator unsafe.Pointer, flags uint32, blockBufferOut unsafe.Pointer) int

func CMSampleBufferGetAudioStreamPacketDescriptions ¶

func CMSampleBufferGetAudioStreamPacketDescriptions(sbuf unsafe.Pointer, packetDescriptionsSize uint, packetDescriptionsOut *coreaudiotypes.AudioStreamPacketDescription, packetDescriptionsSizeNeededOut *uint) int

func CMSampleBufferGetAudioStreamPacketDescriptionsPtr ¶

func CMSampleBufferGetAudioStreamPacketDescriptionsPtr(sbuf unsafe.Pointer, packetDescriptionsPointerOut *coreaudiotypes.AudioStreamPacketDescription, packetDescriptionsSizeOut *uint) int

func CMSampleBufferGetDataBuffer ¶

func CMSampleBufferGetDataBuffer(sbuf unsafe.Pointer) unsafe.Pointer

func CMSampleBufferGetFormatDescription ¶

func CMSampleBufferGetFormatDescription(sbuf unsafe.Pointer) unsafe.Pointer

func CMSampleBufferGetImageBuffer ¶

func CMSampleBufferGetImageBuffer(sbuf unsafe.Pointer) unsafe.Pointer

func CMSampleBufferGetNumSamples ¶

func CMSampleBufferGetNumSamples(sbuf unsafe.Pointer) int

func CMSampleBufferGetOutputSampleTimingInfoArray ¶

func CMSampleBufferGetOutputSampleTimingInfoArray(sbuf unsafe.Pointer, timingArrayEntries int, timingArrayOut *CMSampleTimingInfo, timingArrayEntriesNeededOut *int) int

func CMSampleBufferGetSampleAttachmentsArray ¶

func CMSampleBufferGetSampleAttachmentsArray(sbuf unsafe.Pointer, createIfNecessary uint8) unsafe.Pointer

func CMSampleBufferGetSampleSize ¶

func CMSampleBufferGetSampleSize(sbuf unsafe.Pointer, sampleIndex int) uint

func CMSampleBufferGetSampleSizeArray ¶

func CMSampleBufferGetSampleSizeArray(sbuf unsafe.Pointer, sizeArrayEntries int, sizeArrayOut *uint, sizeArrayEntriesNeededOut *int) int

func CMSampleBufferGetSampleTimingInfo ¶

func CMSampleBufferGetSampleTimingInfo(sbuf unsafe.Pointer, sampleIndex int, timingInfoOut *CMSampleTimingInfo) int

func CMSampleBufferGetSampleTimingInfoArray ¶

func CMSampleBufferGetSampleTimingInfoArray(sbuf unsafe.Pointer, numSampleTimingEntries int, timingArrayOut *CMSampleTimingInfo, timingArrayEntriesNeededOut *int) int

func CMSampleBufferGetTaggedBufferGroup ¶

func CMSampleBufferGetTaggedBufferGroup(sbuf unsafe.Pointer) unsafe.Pointer

@function CMSampleBufferGetTaggedBufferGroup @abstract Returns a CMSampleBuffer's TaggedBufferGroup of media data. @param sbuf CMSampleBuffer being interrogated. @discussion The caller does not own the returned CMTaggedBufferGroup, and must retain it explicitly if the caller needs to maintain a reference to it. @result CMTaggedBufferGroup of media data. The result will be NULL if the CMSampleBuffer does not contain a CMTaggedBufferGroup, or if there is some other error.

func CMSampleBufferGetTotalSampleSize ¶

func CMSampleBufferGetTotalSampleSize(sbuf unsafe.Pointer) uint

func CMSampleBufferGetTypeID ¶

func CMSampleBufferGetTypeID() uint

func CMSampleBufferHasDataFailed ¶

func CMSampleBufferHasDataFailed(sbuf unsafe.Pointer, statusOut *int) uint8

func CMSampleBufferInvalidate ¶

func CMSampleBufferInvalidate(sbuf unsafe.Pointer) int

func CMSampleBufferIsValid ¶

func CMSampleBufferIsValid(sbuf unsafe.Pointer) uint8

func CMSampleBufferMakeDataReady ¶

func CMSampleBufferMakeDataReady(sbuf unsafe.Pointer) int

func CMSampleBufferSetDataBuffer ¶

func CMSampleBufferSetDataBuffer(sbuf unsafe.Pointer, dataBuffer unsafe.Pointer) int

func CMSampleBufferSetDataBufferFromAudioBufferList ¶

func CMSampleBufferSetDataBufferFromAudioBufferList(sbuf unsafe.Pointer, blockBufferStructureAllocator unsafe.Pointer, blockBufferBlockAllocator unsafe.Pointer, flags uint32, bufferList *coreaudiotypes.AudioBufferList) int

func CMSampleBufferSetDataFailed ¶

func CMSampleBufferSetDataFailed(sbuf unsafe.Pointer, status int) int

func CMSampleBufferSetDataReady ¶

func CMSampleBufferSetDataReady(sbuf unsafe.Pointer) int

func CMSampleBufferSetInvalidateCallback ¶

func CMSampleBufferSetInvalidateCallback(sbuf unsafe.Pointer, invalidateCallback unsafe.Pointer, invalidateRefCon uint64) int

func CMSampleBufferSetInvalidateHandler ¶

func CMSampleBufferSetInvalidateHandler(sbuf unsafe.Pointer, invalidateHandler func(unsafe.Pointer)) int

func CMSampleBufferSetOutputPresentationTimeStamp ¶

func CMSampleBufferSetOutputPresentationTimeStamp(sbuf unsafe.Pointer, outputPresentationTimeStamp CMTime) int

func CMSampleBufferTrackDataReadiness ¶

func CMSampleBufferTrackDataReadiness(sbuf unsafe.Pointer, sampleBufferToTrack unsafe.Pointer) int

func CMSetAttachment ¶

func CMSetAttachment(target unsafe.Pointer, key unsafe.Pointer, value unsafe.Pointer, attachmentMode uint32)

@function CMSetAttachment @abstract Sets or adds a attachment of a CMAttachmentBearer @discussion You can attach any CF object to a CMAttachmentBearer object to store additional information. CMSetAttachment stores an attachment identified by a key. If the key doesn't exist, the attachment will be added. If the key does exist, the existing attachment will be replaced. In both cases the retain count of the attachment will be incremented. The value can be any CFType but nil has no defined behavior. Given a CVBufferRef, CMSetAttachment is equivalent to CVBufferSetAttachment. @param target Target CMAttachmentBearer. @param key Key in form of a CFString identifying the desired attachment. @param value Attachment in form af a CF object. @param attachmentMode Specifies which attachment mode is desired for this attachment. A particular attachment key may only exist in a single mode at a time.

func CMSetAttachments ¶

func CMSetAttachments(target unsafe.Pointer, theAttachments unsafe.Pointer, attachmentMode uint32)

@function CMSetAttachments @abstract Sets a set of attachments for a CMAttachmentBearer @discussion CMSetAttachments is a convenience call that in turn calls CMSetAttachment for each key and value in the given dictionary. All key value pairs must be in the root level of the dictionary. Given a CVBufferRef, CMSetAttachments is equivalent to CVBufferSetAttachments. @param target Target CMAttachmentBearer.

func CMSimpleQueueCreate ¶

func CMSimpleQueueCreate(allocator unsafe.Pointer, capacity int32, queueOut unsafe.Pointer) int

func CMSimpleQueueDequeue ¶

func CMSimpleQueueDequeue(queue unsafe.Pointer) unsafe.Pointer

func CMSimpleQueueEnqueue ¶

func CMSimpleQueueEnqueue(queue unsafe.Pointer, element unsafe.Pointer) int

func CMSimpleQueueGetCapacity ¶

func CMSimpleQueueGetCapacity(queue unsafe.Pointer) int32

func CMSimpleQueueGetCount ¶

func CMSimpleQueueGetCount(queue unsafe.Pointer) int32

func CMSimpleQueueGetHead ¶

func CMSimpleQueueGetHead(queue unsafe.Pointer) unsafe.Pointer

func CMSimpleQueueGetTypeID ¶

func CMSimpleQueueGetTypeID() uint

func CMSimpleQueueReset ¶

func CMSimpleQueueReset(queue unsafe.Pointer) int

func CMSwapBigEndianClosedCaptionDescriptionToHost ¶

func CMSwapBigEndianClosedCaptionDescriptionToHost(closedCaptionDescriptionData *uint8, closedCaptionDescriptionSize uint) int

@function CMSwapBigEndianClosedCaptionDescriptionToHost @abstract Converts a ClosedCaptionDescription data structure from big-endian to host-endian in place. @param closedCaptionDescriptionData ClosedCaptionDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param closedCaptionDescriptionSize Size of ClosedCaptionDescription data structure.

func CMSwapBigEndianImageDescriptionToHost ¶

func CMSwapBigEndianImageDescriptionToHost(imageDescriptionData *uint8, imageDescriptionSize uint) int

@function CMSwapBigEndianImageDescriptionToHost @abstract Converts an ImageDescription data structure from big-endian to host-endian in place. @param imageDescriptionData ImageDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param imageDescriptionSize Size of ImageDescription data structure.

func CMSwapBigEndianMetadataDescriptionToHost ¶

func CMSwapBigEndianMetadataDescriptionToHost(metadataDescriptionData *uint8, metadataDescriptionSize uint) int

@function CMSwapBigEndianMetadataDescriptionToHost @abstract Converts a MetadataDescription data structure from big-endian to host-endian in place. @param metadataDescriptionData MetadataDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param metadataDescriptionSize Size of MetadataDescription data structure.

func CMSwapBigEndianSoundDescriptionToHost ¶

func CMSwapBigEndianSoundDescriptionToHost(soundDescriptionData *uint8, soundDescriptionSize uint) int

@function CMSwapBigEndianSoundDescriptionToHost @abstract Converts a SoundDescription data structure from big-endian to host-endian in place. @param soundDescriptionData SoundDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param soundDescriptionSize Size of SoundDescription data structure.

func CMSwapBigEndianTextDescriptionToHost ¶

func CMSwapBigEndianTextDescriptionToHost(textDescriptionData *uint8, textDescriptionSize uint) int

@function CMSwapBigEndianTextDescriptionToHost @abstract Converts a TextDescription data structure from big-endian to host-endian in place. @param textDescriptionData TextDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param textDescriptionSize Size of TextDescription data structure.

func CMSwapBigEndianTimeCodeDescriptionToHost ¶

func CMSwapBigEndianTimeCodeDescriptionToHost(timeCodeDescriptionData *uint8, timeCodeDescriptionSize uint) int

@function CMSwapBigEndianTimeCodeDescriptionToHost @abstract Converts a TimeCodeDescription data structure from big-endian to host-endian in place. @param timeCodeDescriptionData TimeCodeDescription data structure in big-endian byte ordering to be converted to host-endian byte ordering. @param timeCodeDescriptionSize Size of TimeCodeDescription data structure.

func CMSwapHostEndianClosedCaptionDescriptionToBig ¶

func CMSwapHostEndianClosedCaptionDescriptionToBig(closedCaptionDescriptionData *uint8, closedCaptionDescriptionSize uint) int

@function CMSwapHostEndianClosedCaptionDescriptionToBig @abstract Converts a ClosedCaptionDescription data structure from host-endian to big-endian in place. @param closedCaptionDescriptionData ClosedCaptionDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param closedCaptionDescriptionSize Size of ClosedCaptionDescription data structure.

func CMSwapHostEndianImageDescriptionToBig ¶

func CMSwapHostEndianImageDescriptionToBig(imageDescriptionData *uint8, imageDescriptionSize uint) int

@function CMSwapHostEndianImageDescriptionToBig @abstract Converts an ImageDescription data structure from host-endian to big-endian in place. @param imageDescriptionData ImageDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param imageDescriptionSize Size of ImageDescription data structure.

func CMSwapHostEndianMetadataDescriptionToBig ¶

func CMSwapHostEndianMetadataDescriptionToBig(metadataDescriptionData *uint8, metadataDescriptionSize uint) int

@function CMSwapHostEndianMetadataDescriptionToBig @abstract Converts a MetadataDescription data structure from host-endian to big-endian in place. @param metadataDescriptionData MetadataDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param metadataDescriptionSize Size of MetadataDescription data structure.

func CMSwapHostEndianSoundDescriptionToBig ¶

func CMSwapHostEndianSoundDescriptionToBig(soundDescriptionData *uint8, soundDescriptionSize uint) int

@function CMSwapHostEndianSoundDescriptionToBig @abstract Converts a SoundDescription data structure from host-endian to big-endian in place. @param soundDescriptionData SoundDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param soundDescriptionSize Size of SoundDescription data structure.

func CMSwapHostEndianTextDescriptionToBig ¶

func CMSwapHostEndianTextDescriptionToBig(textDescriptionData *uint8, textDescriptionSize uint) int

@function CMSwapHostEndianTextDescriptionToBig @abstract Converts a TextDescription data structure from host-endian to big-endian in place. @param textDescriptionData TextDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param textDescriptionSize Size of TextDescription data structure.

func CMSwapHostEndianTimeCodeDescriptionToBig ¶

func CMSwapHostEndianTimeCodeDescriptionToBig(timeCodeDescriptionData *uint8, timeCodeDescriptionSize uint) int

@function CMSwapHostEndianTimeCodeDescriptionToBig @abstract Converts a TimeCodeDescription data structure from host-endian to big-endian in place. @param timeCodeDescriptionData TimeCodeDescription data structure in host-endian byte ordering to be converted to big-endian byte ordering. @param timeCodeDescriptionSize Size of TimeCodeDescription data structure.

func CMSyncGetRelativeRate ¶

func CMSyncGetRelativeRate(ofClockOrTimebase unsafe.Pointer, relativeToClockOrTimebase unsafe.Pointer) float64

func CMSyncGetRelativeRateAndAnchorTime ¶

func CMSyncGetRelativeRateAndAnchorTime(ofClockOrTimebase unsafe.Pointer, relativeToClockOrTimebase unsafe.Pointer, outRelativeRate *float64, outOfClockOrTimebaseAnchorTime *CMTime, outRelativeToClockOrTimebaseAnchorTime *CMTime) int

func CMSyncMightDrift ¶

func CMSyncMightDrift(clockOrTimebase1 unsafe.Pointer, clockOrTimebase2 unsafe.Pointer) uint8

func CMTagCategoryEqualToTagCategory ¶

func CMTagCategoryEqualToTagCategory(tag1 CMTag, tag2 CMTag) uint8

@function CMTagCategoryEqualToTagCategory @abstract Tests if the CMTagCategory fields of two CMTags are equal. @discussion Function evaluates if two tag categories are structurally equivalent. This can also be performed using the == operator with the fields but this inline can be useful if one wants to catch invocations. @param tag1 First CMTag to test. @param tag2 Second CMTag to test. @result Boolean indicating if the tag categories are equal.

func CMTagCategoryValueEqualToValue ¶

func CMTagCategoryValueEqualToValue(tag1 CMTag, tag2 CMTag) uint8

@function CMTagCategoryValueEqualToValue @abstract Compares two CMTagCategory values for equality. @discussion Equality can also be tested by comparing the values with == but this is provided for consistency with other tests here. @param tag1 First CMTag to test for equality. @param tag2 Second CMTag to test for equality. @result Boolean indicating if the tag values are equal.

func CMTagCollectionAddTag ¶

func CMTagCollectionAddTag(tagCollection unsafe.Pointer, tagToAdd CMTag) int

@function CMTagCollectionAddTag @abstract Adds a tag to a mutable tag collection guaranteeing it is only added once. @discussion This routine adds a CMTag to a CMMutableTagCollection. If the CMTag already exists in the tag collection, the tag is not added again. If the tag doesn't exist in the tag collection, the tag collection is updated to contain the tag. Note that there is no ordering for tags within a tag collection. @param tagCollection CMMutableTagCollectionRef to which to add a tag. @param tagToAdd A CMTag to add to the tag collection. @result OSStatus indicating if the operation succeeded. Returns noErr if the tag was already in the collection.

func CMTagCollectionAddTagsFromArray ¶

func CMTagCollectionAddTagsFromArray(tagCollection unsafe.Pointer, tags *CMTag, tagCount int) int

@function CMTagCollectionAddTagsFromArray @abstract Adds all tags specified in a C array to a mutable tag collection. Tags already existing in tagCollection will not be added. @param tagCollection CMMutableTagCollectionRef to which to add tags. @param tags The address of a buffer of CMTags. @param tagCount CMItemCount of the number of tags in 'tags' array. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionAddTagsFromCollection ¶

func CMTagCollectionAddTagsFromCollection(tagCollection unsafe.Pointer, collectionWithTagsToAdd unsafe.Pointer) int

@function CMTagCollectionAddTagsFromCollection @abstract Add all tags from one tag collection to a mutable tag collection. Tags already existing in tagCollection will not be added. @param tagCollection CMMutableTagCollectionRef to which to add tags. @param collectionWithTagsToAdd CMTagCollectionRef from which to copy all tags. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionApply ¶

func CMTagCollectionApply(tagCollection unsafe.Pointer, applier unsafe.Pointer, context_ unsafe.Pointer)

@function CMTagCollectionApply @abstract Iterate over a tag collection calling the provided callback. @discussion Iterates over the CMTags of the tag collection executing the callback with each tag. @param tagCollection CMTagCollectionRef to iterate. @param applier The CMTagCollectionApplierFunction callback to call with each tag. @param context A void * or NULL to pass to applier.

func CMTagCollectionContainsCategory ¶

func CMTagCollectionContainsCategory(tagCollection unsafe.Pointer, category CMTagCategory) uint8

@function CMTagCollectionContainsCategory @abstract Tests if a CMTagCategory is used by any CMTags within the tag container. @param tagCollection CMTagCollectionRef to check. @param category CMTagCategory whose value should be checked for containment in tagCollection. @result Returns true if tagCollection contains at least one CMTag with the specified category, false otherwise.

func CMTagCollectionContainsSpecifiedTags ¶

func CMTagCollectionContainsSpecifiedTags(tagCollection unsafe.Pointer, containedTags *CMTag, containedTagCount int) uint8

@function CMTagCollectionContainsSpecifiedTags @abstract Checks if all the specified tags are contained in a tag collection. @discussion Tests if the tags specified by a buffer of CMTags are contained within another tag collection in its entirety. Partial containment will report false. Complete containment will report true. @param tagCollection CMTagCollectionRef to check. @param containedTags The non-NULL address to a CMTag array whose CMTags should be checked for containment in tagCollection. @param containedTagCount The number of CMTag elements in the buffer containedTags. Zero is allowed but will report true. @result Returns true if all CMTags in a buffer of CMTags are contained within the CMTagCollection, false otherwise.

func CMTagCollectionContainsTag ¶

func CMTagCollectionContainsTag(tagCollection unsafe.Pointer, tag CMTag) uint8

@function CMTagCollectionContainsTag @abstract Checks if the tag collection contains a specific tag. @param tagCollection CMTagCollection to check. @param tag CMTag to find. @result Returns true if the indicated CMTag is contained within the CMTagCollection, false otherwise.

func CMTagCollectionContainsTagsOfCollection ¶

func CMTagCollectionContainsTagsOfCollection(tagCollection unsafe.Pointer, containedTagCollection unsafe.Pointer) uint8

@function CMTagCollectionContainsTagsOfCollection @abstract Checks if all the tags in a tag collection are present in another tag collection. @discussion Tests if a collection of tags specified by a CMTagCollection are contained within another tag collection in its entirety. Partial containment will report false. Complete containment will report true. @param tagCollection CMTagCollectionRef used to check. @param containedTagCollection CMTagCollectionRef whose contents should be checked for containment in tagCollection. @result Returns true if all CMTags in a collection are contained within the specified CMTagCollection, false otherwise.

func CMTagCollectionCopyAsData ¶

func CMTagCollectionCopyAsData(tagCollection unsafe.Pointer, allocator unsafe.Pointer) unsafe.Pointer

@function CMTagCollectionCopyAsData @abstract Returns a CFDataRef version of a CMTagCollection. @discussion This is useful when putting CMTagCollections in CF container types. @param tagCollection CMTagCollection to serialize as a CFData. @param allocator CFAllocator with which to create a CFData. Pass kCFAllocatorDefault to use the default allocator. @result A CFDataRef holding the serialized contents of the CMTagCollection. The client is responsible for releasing the returned CFData.

func CMTagCollectionCopyAsDictionary ¶

func CMTagCollectionCopyAsDictionary(tagCollection unsafe.Pointer, allocator unsafe.Pointer) unsafe.Pointer

@function CMTagCollectionCopyAsDictionary @abstract Returns a CFDictionary representation of a CMTagCollection. @discussion This is useful when putting CMTagCollections in CF container types. @param tagCollection CMTagCollection to serialize as a CFDictionary. @param allocator CFAllocator with which to create a dictionary. Pass kCFAllocatorDefault to use the default allocator. @result A CFDictionaryRef holding the serialized contents of the CMTagCollection. The client is responsible for releasing the returned CFDictionary.

func CMTagCollectionCopyDescription ¶

func CMTagCollectionCopyDescription(allocator unsafe.Pointer, tagCollection unsafe.Pointer) unsafe.Pointer

@function CMTagCollectionCopyDescription @abstract Creates a CFString with a description of a CMTagCollection. @discussion This can be used from within CFShow on a CMTagCollection object. It is also useful from other client debugging code. The caller owns the returned CFString, and is responsible for releasing it. Descriptions are not localized so are likely suitable only for debugging. @param allocator CFAllocator to use in creating the description string. @param tagCollection CMTagCollectionRef to describe. @result The created CFString description.

func CMTagCollectionCopyTagsOfCategories ¶

func CMTagCollectionCopyTagsOfCategories(allocator unsafe.Pointer, tagCollection unsafe.Pointer, categories *CMTagCategory, categoriesCount int, collectionWithTagsOfCategories unsafe.Pointer) int

@function CMTagCollectionCopyTagsOfCategories @abstract Copies all tags belonging to a specified list of CMTagCategory from one tag collection to a newly created tag collection. @discussion This routine copies all tags belonging to a specified list of CMTagCategory from one tag collection to a newly created tag collection. @param allocator CFAllocatorRef to use in allocations of the operation. @param tagCollection CMTagCollectionRef from which to copy tags. @param categories A non-NULL address of a buffer containing a list of CMTagCategory. @param categoriesCount The number of CMTagCategory the buffer 'categories' is holding. @param collectionWithTagsOfCategories The address of a CMTagCollectionRef that contains all tags copied from 'tagCollection'. The client is responsible for releasing the returned CMTagCollection. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionCountTagsWithFilterFunction ¶

func CMTagCollectionCountTagsWithFilterFunction(tagCollection unsafe.Pointer, filterApplier unsafe.Pointer, context_ unsafe.Pointer) int

@function CMTagCollectionCountTagsWithFilterFunction @abstract Count the number of tags satisfying a callback. @discussion Iterates over the CMTags of the tag collection calling the supplied callback and incrementing a counter for each tag satisfying the callback. Returns this counter value upon completing iteration. @param tagCollection CMTagCollectionRef to iterate. @param filterApplier The CMTagCollectionTagFilterFunction callback to call with each tag. @param context A void * or NULL to pass to applier. @result CMItemCount indicating the number of CMTags satisfying 'filterApplier'.

func CMTagCollectionCreate ¶

func CMTagCollectionCreate(allocator unsafe.Pointer, tags *CMTag, tagCount int, newCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreate @abstract Creates a CMTagCollectionRef described by a number of parameters. @discussion This can be used to construct a CMTagCollectionRef from zero or more CMTags. @param allocator CFAllocator to use to create the collection and internal data structures. @param tags Zero or more CMTag structs to copy into the collection. May pass NULL if tagCount is also zero (0). @param tagCount Number of tags in the 'tags' array. @param newCollectionOut Address of a location to return the newly created CMTagCollectionRef. The client is responsible for releasing the returned CMTagCollection. @result OSStatus with error or noErr if successful.

func CMTagCollectionCreateCopy ¶

func CMTagCollectionCreateCopy(tagCollection unsafe.Pointer, allocator unsafe.Pointer, newCollectionCopyOut unsafe.Pointer) int

@function CMTagCollectionCreateCopy @abstract Creates a duplicate CMTagCollectionRef. @discussion This can be used to construct a CMTagCollectionRef that contains all the same tags as another collection. @param tagCollection CMTagCollectionRef used to create the copy. @param allocator CFAllocator used to create the copy. @param newCollectionCopyOut Address of a location to return the newly created CMTagCollectionRef. The client is responsible for releasing the returned CMTagCollection. @result OSStatus with error or noErr if successful.

func CMTagCollectionCreateDifference ¶

func CMTagCollectionCreateDifference(tagCollectionMinuend unsafe.Pointer, tagCollectionSubtrahend unsafe.Pointer, tagCollectionOut unsafe.Pointer) int

func CMTagCollectionCreateExclusiveOr ¶

func CMTagCollectionCreateExclusiveOr(tagCollection1 unsafe.Pointer, tagCollection2 unsafe.Pointer, tagCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateExclusiveOr @abstract Calculates the exclusive OR of two tag collections to produce a new tag collection. @discussion This routine determines tags that are in only one of two source tag collections and adds only those to produce a new tag collection. If both source tag collections have no tags in common, the produced tag collection will contain a union of both source tag collections. If both source tag collections have the same tags, the produced tag collection will be empty. @param tagCollection1 CMTagCollectionRef to use in the xor operation. @param tagCollection2 CMTagCollectionRef to use in the xor operation. @param tagCollectionOut The address of a CMTagCollectionRef that contains the xor of the tags from the two tag collections. The client is responsible for releasing the returned CMTagCollection. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionCreateFromData ¶

func CMTagCollectionCreateFromData(data unsafe.Pointer, allocator unsafe.Pointer, newCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateFromData @abstract Reconstitutes a CMTagCollection from a CFData previously created by CMTagCollectionCopyAsData. @discussion This is useful when getting CMTagCollection from CF container types. If the CFData does not have the requisite keyed values, newCollectionOut will contain NULL. @param data A CFData from which to create a CMTagCollection. @param allocator CFAllocator to use in allocation CMTagCollectionRef. Pass kCFAllocatorDefault to use the default allocator. @param newCollectionOut Address of an CMTagCollectionRef to return the newly created tag collection. The client is responsible for releasing the returned CMTagCollection. @result OSStatus with error or noErr if successful.

func CMTagCollectionCreateFromDictionary ¶

func CMTagCollectionCreateFromDictionary(dict unsafe.Pointer, allocator unsafe.Pointer, newCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateFromDictionary @abstract Reconstitutes a CMTagCollection from a CFDictionary previously created by CMTagCollectionCopyAsDictionary. @discussion This is useful when getting CMTagCollection from CF container types. If the CFDictionary does not have the requisite keyed values, newCollectionOut will contain NULL. @param dict A CFDictionary from which to create a CMTagCollection. @param allocator CFAllocator to use in allocation CMTagCollectionRef @param newCollectionOut Address of an CMTagCollectionRef to return the newly created tag collection. The client is responsible for releasing the returned CMTagCollection. @result OSStatus with error or noErr if successful.

func CMTagCollectionCreateIntersection ¶

func CMTagCollectionCreateIntersection(tagCollection1 unsafe.Pointer, tagCollection2 unsafe.Pointer, tagCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateIntersection @abstract Calculates the intersection of two tag collections to produce a new tag collection. @discussion This routine creates an intersection of two tag collection by finding common tags among two source tag collections and produces a new tag collection containing those common tags. @param tagCollection1 CMTagCollectionRef to use in the intersection operation. @param tagCollection2 CMTagCollectionRef to use in the intersection operation. @param tagCollectionOut The address of a CMTagCollectionRef that contains all tags that are common to 'tagCollection1' and 'tagCollection2'. The client is responsible for releasing the returned CMTagCollection. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionCreateMutable ¶

func CMTagCollectionCreateMutable(allocator unsafe.Pointer, capacity int, newMutableCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateMutable @abstract Creates a CMMutableTagCollectionRef. @discussion This can be used to construct a mutable CMTagCollectionRef with a capacity limit or without a capacity limit. A capacity greater than zero indicates a maximum number of CMTags the collection can contain. The actual number of tags may be less than this value depending upon how many tags have been added to the collection. If capacity is 0, the mutable collection can contain any number of tags. @param allocator CFAllocator to use to create the collection and internal data structures. @param capacity Capacity limit set to zero to indicate no limit or a value greater than zero for a limit. @param newMutableCollectionOut Address of a location to return the newly created CMMutabbleTagCollectionRef. The client is responsible for releasing the returned CMMutableTagCollection. @result OSStatus with error, or noErr if successful.

func CMTagCollectionCreateMutableCopy ¶

func CMTagCollectionCreateMutableCopy(tagCollection unsafe.Pointer, allocator unsafe.Pointer, newMutableCollectionCopyOut unsafe.Pointer) int

@function CMTagCollectionCreateMutableCopy @abstract Creates a duplicate mutable CMTagCollectionRef. @discussion This can be used to construct a CMMutableTagCollectionRef that contains all the same tags as another collection. @param tagCollection CMTagCollectionRef used to create the copy. @param allocator CFAllocator used to create the copy. @param newMutableCollectionCopyOut Address of a location to return the newly created CMMutableTagCollectionRef. The client is responsible for releasing the returned CMMutableTagCollection. @result OSStatus with error or noErr if successful.

func CMTagCollectionCreateUnion ¶

func CMTagCollectionCreateUnion(tagCollection1 unsafe.Pointer, tagCollection2 unsafe.Pointer, tagCollectionOut unsafe.Pointer) int

@function CMTagCollectionCreateUnion @abstract Calculates the union of two tag collections to produce a new tag collection. @discussion This routine creates an union of two tag collection by adding all tags from two tag collections and produces a new tag collection containing all the tags. Duplicate tags will not be added twice. Note that if no tags are common among the source tag collections, the new tag collection will contain as many tags as the sum of the number of tags in each source tag collection. If two source tag collections contain the same tags, the resulting tag collection will have the same number of tags as each source tag collection. @param tagCollection1 CMTagCollectionRef to use in the union operation. @param tagCollection2 CMTagCollectionRef to use in the union operation. @param tagCollectionOut The address of a CMTagCollectionRef that contains all tags that are common to 'tagCollection1' and 'tagCollection2'. The client is responsible for releasing the returned CMTagCollection. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionGetCount ¶

func CMTagCollectionGetCount(tagCollection unsafe.Pointer) int

@function CMTagCollectionGetCount @abstract Returns the number of CMTags held in the CMTagCollectionRef. @param tagCollection CMTagCollectionRef to evaluate for the tag count. @result CMItemCount holding the count.

func CMTagCollectionGetCountOfCategory ¶

func CMTagCollectionGetCountOfCategory(tagCollection unsafe.Pointer, category CMTagCategory) int

@function CMTagCollectionGetCountOfCategory @abstract Counts an returns the number of tags in the tag collection matching the specified category. @discussion Returns the count of tags having the specified category. It will return 0 if there are no tags. @param tagCollection CMTagCollectionRef to evaluate. @param category CMTagCategory to check for. @result Returns the count of tags having the specified category.

func CMTagCollectionGetTags ¶

func CMTagCollectionGetTags(tagCollection unsafe.Pointer, tagBuffer *CMTag, tagBufferCount int, numberOfTagsCopied *int) int

@function CMTagCollectionGetTags @abstract Retrieve all CMTags and copy into a supplied buffer. @discussion The function retrieves a specified number of CMTags from the CMTagCollectionRef and copies them to a supplied buffer. The routine populates a provided sized buffer with each CMTag in the collection. If the provided buffer is smaller than needed to retrieve all tags, the routine will fill the buffer, return the number actually copied and return kCMTagCollectionError_ExhaustedBufferSize. If the provided buffer is larger than the number of CMTags in the collection to retrieve, the routine will fill the buffer with the number of available CMTags, return the number copied and fill the remainder of the buffer with kCMTagInvalid while returning noErr. @param tagCollection CMTagCollectionRef to iterate. @param tagBuffer A non-NULL address of a buffer to fill with CMTags with CMTagCategory 'category'. @param tagBufferCount The number of CMTags the buffer 'tagBuffer' can hold. @param numberOfTagsCopied The address of a CMItemCount that is filled with the number of tags retrieved, may be NULL. @result OSStatus with an error or noErr if successful.

func CMTagCollectionGetTagsWithCategory ¶

func CMTagCollectionGetTagsWithCategory(tagCollection unsafe.Pointer, category CMTagCategory, tagBuffer *CMTag, tagBufferCount int, numberOfTagsCopied *int) int

@function CMTagCollectionGetTagsWithCategory @abstract Retrieve CMTags having a specified CMTagCategory and copy to a supplied buffer. @discussion Populates a provided buffer with each CMTag in the collection that has the specified CMTagCategory. If the provided buffer is smaller than needed, the routine will fill the buffer, return the number of CMTags actually copied and return kCMTagCollectionError_ExhaustedBufferSize. If the provided buffer is larger than needed, it will fill the buffer with the number of available CMTags, return the number copied and fill the remainder of the buffer with kCMTagInvalid. @param tagCollection CMTagCollectionRef to iterate. @param category CMTagCategory to match. @param tagBuffer A non-NULL address of a buffer to fill with CMTags with CMTagCategory 'category'. @param tagBufferCount The number of CMTags the buffer 'tagBuffer' can hold. @param numberOfTagsCopied The address of a CMItemCount that is filled with the number of tags retrieved, may be NULL. @result OSStatus with an error or noErr if successful.

func CMTagCollectionGetTagsWithFilterFunction ¶

func CMTagCollectionGetTagsWithFilterFunction(tagCollection unsafe.Pointer, tagBuffer *CMTag, tagBufferCount int, numberOfTagsCopied *int, filter unsafe.Pointer, context_ unsafe.Pointer) int

@function CMTagCollectionGetTagsWithFilterFunction @abstract Retrieve CMTags satisfying a callback function and copy them to a supplied buffer. @discussion Applies a CMTagCollectionTagFilterFunction predicate and populates a provided buffer with each CMTag that for each tag when the filter returns true. If the provided buffer is smaller than the number of tags the predicate satisfies, the routine will fill the buffer, return the copy CMTags actually copied and return kCMTagCollectionError_ExhaustedBufferSize. If the provided buffer is larger than needed, it will fill the buffer with the number of available CMTags, fill the remainder of the buffer with kCMTagInvalid and return a result of noErr. @param tagCollection CMTagCollectionRef to iterate. @param tagBuffer A non-NULL address of a buffer to fill with CMTags with CMTagCategory 'category'. @param tagBufferCount The number of CMTags the buffer 'tagBuffer' can hold. @param numberOfTagsCopied The address of a CMItemCount that is filled with the number of tags retrieved, may be NULL. @param filter The CMTagCollectionTagFilterFunction callback to call with each tag. @param context A void * or NULL to pass to filter. @result OSStatus with an error or noErr if successful.

func CMTagCollectionGetTypeID ¶

func CMTagCollectionGetTypeID() uint

@function CMTagCollectionGetTypeID @abstract Obtains the CoreFoundation type ID for the CMTagCollection type. @discussion Obtains the CoreFoundation type ID for the CMTagCollection type. @result Returns the CFTypeID corresponding to CMTagCollection.

func CMTagCollectionIsEmpty ¶

func CMTagCollectionIsEmpty(tagCollection unsafe.Pointer) uint8

@function CMTagCollectionIsEmpty @abstract Reports if the tag collection contains no tags. @discussion This is a convenience name for set like use but is the same as the expression: CMTagCollectionIsEmptyGetCount() == 0. @param tagCollection CMTagCollectionRef to iterate. @result True if there are no tags, false otherwise.

func CMTagCollectionRemoveAllTags ¶

func CMTagCollectionRemoveAllTags(tagCollection unsafe.Pointer) int

@function CMTagCollectionRemoveAllTags @abstract Removes all tags from a mutable tag collection. @discussion This routine removes all CMTags from a CMMutableTagCollection producing an empty collection. @param tagCollection CMMutableTagCollectionRef from which to remove all tags. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionRemoveAllTagsOfCategory ¶

func CMTagCollectionRemoveAllTagsOfCategory(tagCollection unsafe.Pointer, category CMTagCategory) int

@function CMTagCollectionRemoveAllTagsOfCategory @abstract Removes all tags having a specified category from a mutable tag collection. @discussion This routine removes all CMTags having a specified CMTagCategory from a CMMutableTagCollection perhaps producing an empty collection. @param tagCollection CMMutableTagCollectionRef from which to remove all tags. @param category CMTagCategory to match. @result OSStatus indicating if the operation succeeded.

func CMTagCollectionRemoveTag ¶

func CMTagCollectionRemoveTag(tagCollection unsafe.Pointer, tagToRemove CMTag) int

@function CMTagCollectionRemoveTag @abstract Removes one tag from a mutable tag collection. @discussion This routine removes a CMTag if present from a CMMutableTagCollection. If the CMTag exists in the tag collection, the tag collection is updated to no longer contain the tag. If the tag doesn't exist in the tag collection, the tag collection is left unchanged. The OSStatus will return kCMTagCollectionError_TagNotFound if the tag does not exist in the collection or if the tag collection is empty. @param tagCollection CMMutableTagCollectionRef from which to remove a tag. @param tagToRemove A CMTag to match to the tag collection. @result OSStatus indicating if the operation succeeded.

func CMTagCompare ¶

func CMTagCompare(tag1 CMTag, tag2 CMTag) corefoundation.CFComparisonResult

@function CMTagCompare @abstract Compares two CMTags in an ordered fashion returning a CFComparisonResult based upon the ordering of the tags. @discussion The entirety of a CMTag can be compared against a second CMTag in an ordered way. The details of how the comparison is performed is an internal implementation detail. The comparison is performed as tag1 COMPARISON tag2 where COMPARISON is the ordering operation. The ordering will be stable under a release of the framework but may change in the future. Therefore, an ordered CMTag array serialized in one version of the framework should not be assumed to be ordered the same in another version of the framework. This is best handled by retrieving the original array of CMTags and then reinserting with the new order. @param tag1 First CMTag to compare in ordered fashion. @param tag2 Second CMTag to compare in ordered fashion. @result The CFComparisonResult indicating the order of tag1 compared to tag2.

func CMTagCopyAsDictionary ¶

func CMTagCopyAsDictionary(tag CMTag, allocator unsafe.Pointer) unsafe.Pointer

@function CMTagCopyAsDictionary @abstract Returns a CFDictionary version of a CMTag. @discussion This is useful when putting CMTag in CF container types. The caller owns the returned CFDictionary, and is responsible for releasing it. @param tag The CMTag from which to create the dictionary. @param allocator CFAllocator with which to create a dictionary. Pass kCFAllocatorDefault to use the default allocator. @result A CFDictionary version of the CMTag.

func CMTagCopyDescription ¶

func CMTagCopyDescription(allocator unsafe.Pointer, tag CMTag) unsafe.Pointer

@function CMTagCopyDescription @abstract Creates a CFString with a description of a CMTag (just like CFCopyDescription). @discussion This can be used from within CFShow on an object that contains CMTag fields. It is also useful from other client debugging code. The caller owns the returned CFString, and is responsible for releasing it. Descriptions are not localized so are likely suitable only for debugging. @param allocator CFAllocator to use in creating the description string. Pass kCFAllocatorDefault to use the default allocator. @param tag CMTag to describe. @result The created CFString description.

func CMTagEqualToTag ¶

func CMTagEqualToTag(tag1 CMTag, tag2 CMTag) uint8

@function CMTagEqualToTag @abstract Tests if two CMTags are equal. @discussion Function evaluates if two tags are structurally equivalent. It performs a field by field comparison. @param tag1 First CMTag to test for equality. @param tag2 Second CMTag to test for equality. @result Returns true if the two tags are equal, false otherwise.

func CMTagGetFlagsValue ¶

func CMTagGetFlagsValue(tag CMTag) uint64

@function CMTagGetFlagsValue @abstract Returns the 64 bits of flags as an unsigned 64-bit integer carried by the CMTag. @discussion This should only be called on a CMTag with a data type of kCMTagDataType_Flags. Calling it with a CMTag having another data type is undefined. @param tag CMTag to evaluate. @result Unsigned 64-bit integer holding the flags value.

func CMTagGetFloat64Value ¶

func CMTagGetFloat64Value(tag CMTag) float64

@function CMTagGetFloat64Value @abstract Returns the 64-bit floating point value carried by the CMTag. @discussion This should only be called on a CMTag with a data type of kCMTagDataType_Float64. Calling it with a CMTag having another data type is undefined. @param tag CMTag to evaluate. @result 64-bit float.

func CMTagGetOSTypeValue ¶

func CMTagGetOSTypeValue(tag CMTag) uint

@function CMTagGetOSTypeValue @abstract Returns the single OSType value carried by the CMTag. @discussion This should only be called on a CMTag with a data type of kCMTagDataType_OSType. Calling it with a CMTag having another data type is undefined. @param tag CMTag to evaluate. @result OSType.

func CMTagGetSInt64Value ¶

func CMTagGetSInt64Value(tag CMTag) int64

@function CMTagGetSInt64Value @abstract Returns the signed 64-bit value carried by the CMTag. @discussion This should only be called on a CMTag with a data type of kCMTagDataType_SInt64. Calling it with a CMTag having another data type is undefined. @param tag CMTag to evaluate. @result Signed 64-bit integer.

func CMTagGetValue ¶

func CMTagGetValue(tag CMTag) uint64

@function CMTagGetValue @abstract Returns the raw 64-bit CMTagValue field of the CMTag. @discussion The CMTagValue is returned without consideration for the encoded data type. @param tag CMTag to access. @result CMTagValue of the tag.

func CMTagHasCategory ¶

func CMTagHasCategory(tag CMTag, category CMTagCategory) uint8

@function CMTagHasCategory @abstract Returns true if the CMTag has the specified CMTagCategory. @param tag CMTag to evaluate. @param category CMTagCategory to check for. @result CMTagCategory of the tag.

func CMTagHasFlagsValue ¶

func CMTagHasFlagsValue(tag CMTag) uint8

@function CMTagHasFlagsValue @abstract Checks if the tag represents an flags value. @param tag CMTag to evaluate. @result Returns true if the CMTag carries 64 bits of flags indicated by a data type of kCMTagDataType_Flags, false otherwise.

func CMTagHasFloat64Value ¶

func CMTagHasFloat64Value(tag CMTag) uint8

@function CMTagHasFloat64Value @abstract Checks if the tag represents a 64-bit float value. @param tag CMTag to evaluate. @result Returns true if the CMTag carries a 64-bit float indicated by a data type of kCMTagDataType_Float64, false otherwise.

func CMTagHasOSTypeValue ¶

func CMTagHasOSTypeValue(tag CMTag) uint8

@function CMTagHasOSTypeValue @abstract Checks if the tag represents an OSType value. @param tag CMTag to evaluate. @result Returns true if the CMTag carries an OSType indicated by a data type of kCMTagDataType_OSType, false otherwise.

func CMTagHasSInt64Value ¶

func CMTagHasSInt64Value(tag CMTag) uint8

@function CMTagHasSInt64Value @abstract Checks if the tag represents a signed 64-bit value. @param tag CMTag to evaluate. @result Returns true if the CMTag carries a signed 64-bit value indicated by a data type of kCMTagDataType_SInt64, false otherwise.

func CMTagHash ¶

func CMTagHash(tag CMTag) uint

@function CMTagHash @abstract Calculates a hash code for the CMTag. @param tag CMTag to hash. @result The created CFHashCode.

func CMTagIsValid ¶

func CMTagIsValid(tag CMTag) uint8

@function CMTagIsValid @abstract Tests if a CMTag is valid. @param tag The CMTag to evaluate. @result Returns false if the tag's dataType is kCMTagDataType_Invalid, true otherwise.

func CMTaggedBufferGroupCreate ¶

func CMTaggedBufferGroupCreate(allocator unsafe.Pointer, tagCollections unsafe.Pointer, buffers unsafe.Pointer, groupOut unsafe.Pointer) int

@function CMTaggedBufferGroupCreate @abstract Creates a new tagged buffer group. @param allocator The CFAllocator to use for allocating this buffer group. May be NULL. @param tagCollections A CFArray of CMTagCollections for the buffers. @param buffers A CFArray of buffers, each of type CMSampleBuffer or CVPixelBuffer. The group will retain these sample buffers and pixel buffers. The number of tagCollections must match the number of buffers. @param groupOut The newly created group will be placed here. The caller has a responsibility to call CFRelease on it. @result Returns noErr on success.

func CMTaggedBufferGroupCreateCombined ¶

func CMTaggedBufferGroupCreateCombined(allocator unsafe.Pointer, taggedBufferGroups unsafe.Pointer, groupOut unsafe.Pointer) int

@function CMTaggedBufferGroupCreateCombined @abstract Creates a new tagged buffer group by combining all the tagged buffer groups in an array. @param allocator The CFAllocator to use for allocating this buffer group. May be NULL. @param taggedBufferGroups A CFArray of CMTaggedBufferGroups. @param groupOut The newly created group will be placed here. The caller has a responsibility to call CFRelease on it. @result Returns noErr on success.

func CMTaggedBufferGroupFormatDescriptionCreateForTaggedBufferGroup ¶

func CMTaggedBufferGroupFormatDescriptionCreateForTaggedBufferGroup(allocator unsafe.Pointer, taggedBufferGroup unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMTaggedBufferGroupFormatDescriptionCreateForTaggedBufferGroupWithExtensions ¶

func CMTaggedBufferGroupFormatDescriptionCreateForTaggedBufferGroupWithExtensions(allocator unsafe.Pointer, taggedBufferGroup unsafe.Pointer, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMTaggedBufferGroupFormatDescriptionMatchesTaggedBufferGroup ¶

func CMTaggedBufferGroupFormatDescriptionMatchesTaggedBufferGroup(desc unsafe.Pointer, taggedBufferGroup unsafe.Pointer) uint8

func CMTaggedBufferGroupGetCMSampleBufferAtIndex ¶

func CMTaggedBufferGroupGetCMSampleBufferAtIndex(group unsafe.Pointer, index int) unsafe.Pointer

@function CMTaggedBufferGroupGetCMSampleBufferAtIndex @abstract Returns a CMSampleBuffer from a CMTaggedBufferGroup by sequential indexing. @param group The CMTaggedBufferGroupRef to retrieve the CMSampleBuffer from. @param index An index from 0 to count-1. @result Returns the CMSampleBuffer, or NULL on failure (including if the buffer at this index is not a CMSampleBuffer).

func CMTaggedBufferGroupGetCMSampleBufferForTag ¶

func CMTaggedBufferGroupGetCMSampleBufferForTag(group unsafe.Pointer, tag CMTag, indexOut *int) unsafe.Pointer

@function CMTaggedBufferGroupGetCMSampleBufferForTag @abstract Returns a CMSampleBuffer from a CMTaggedBufferGroup by looking for a unique match for the provided tag. @param group The CMTaggedBufferGroupRef to retrieve the CMSampleBuffer from. @param tag The tag to look up. If more than one buffer's tag collection includes this tag, the lookup will fail. @param indexOut On success, index of the returned CMSampleBuffer. May be NULL. @result Returns the CMSampleBuffer, or NULL on failure (including if the buffer at this index is not a CMSampleBuffer).

func CMTaggedBufferGroupGetCMSampleBufferForTagCollection ¶

func CMTaggedBufferGroupGetCMSampleBufferForTagCollection(group unsafe.Pointer, tagCollection unsafe.Pointer, indexOut *int) unsafe.Pointer

@function CMTaggedBufferGroupGetCMSampleBufferForTagCollection @abstract Returns a CMSampleBuffer from a CMTaggedBufferGroup by looking for a unique match for the provided tag collection. @param group The CMTaggedBufferGroupRef to retrieve the CMSampleBuffer from. @param tagCollection The tag collection to look up. If more than one buffer's tag collection includes this tag collection, the lookup will fail. @param indexOut On success, index of the returned CMSampleBuffer. May be NULL. @result Returns the CMSampleBuffer, or NULL on failure (including if the buffer at this index is not a CMSampleBuffer).

func CMTaggedBufferGroupGetCVPixelBufferAtIndex ¶

func CMTaggedBufferGroupGetCVPixelBufferAtIndex(group unsafe.Pointer, index int) unsafe.Pointer

@function CMTaggedBufferGroupGetCVPixelBufferAtIndex @abstract Returns a CVPixelBuffer from a CMTaggedBufferGroup by sequential indexing. @param group The CMTaggedBufferGroupRef to retrieve the CVPixelBuffer from. @param index An index from 0 to count-1. @result Returns the CVPixelBuffer, or NULL on failure (including if the buffer at this index is not a CVPixelBuffer).

func CMTaggedBufferGroupGetCVPixelBufferForTag ¶

func CMTaggedBufferGroupGetCVPixelBufferForTag(group unsafe.Pointer, tag CMTag, indexOut *int) unsafe.Pointer

@function CMTaggedBufferGroupGetCVPixelBufferForTag @abstract Returns a CVPixelBuffer from a CMTaggedBufferGroup by looking for a unique match for the provided tag. @param group The CMTaggedBufferGroupRef to retrieve the CVPixelBuffer from. @param tag The tag to look up. If more than one buffer's tag collection includes this tag, the lookup will fail. @param indexOut On success, index of the returned CVPixelBuffer. May be NULL. @result Returns the CVPixelBuffer, or NULL on failure (including if the buffer at this index is not a CVPixelBuffer).

func CMTaggedBufferGroupGetCVPixelBufferForTagCollection ¶

func CMTaggedBufferGroupGetCVPixelBufferForTagCollection(group unsafe.Pointer, tagCollection unsafe.Pointer, indexOut *int) unsafe.Pointer

@function CMTaggedBufferGroupGetCVPixelBufferForTagCollection @abstract Returns a CVPixelBuffer from a CMTaggedBufferGroup by looking for a unique match for the provided tag collection. @param group The CMTaggedBufferGroupRef to retrieve the CVPixelBuffer from. @param tagCollection The tag collection to look up. If more than one buffer's tag collection includes this tag collection, the lookup will fail. @param indexOut On success, index of the returned CVPixelBuffer. May be NULL. @result Returns the CVPixelBuffer, or NULL on failure (including if the buffer at this index is not a CVPixelBuffer).

func CMTaggedBufferGroupGetCount ¶

func CMTaggedBufferGroupGetCount(group unsafe.Pointer) int

@function CMTaggedBufferGroupGetCount @abstract Returns the number of buffers in a CMTaggedBufferGroup. @param group The CMTaggedBufferGroupRef to retrieve the count from. @result Returns the number of buffers, or 0 on failure or if the group is empty.

func CMTaggedBufferGroupGetNumberOfMatchesForTagCollection ¶

func CMTaggedBufferGroupGetNumberOfMatchesForTagCollection(group unsafe.Pointer, tagCollection unsafe.Pointer) int

@function CMTaggedBufferGroupGetNumberOfMatchesForTagCollection @abstract Returns the number of matches that a tag collection has in a CMTaggedBufferGroup. @discussion If the returned count is less than or greater than 1, buffer lookups using this tag collection will fail and return NULL, since the lookups must be unique and unambiguous. @param group The CMTaggedBufferGroupRef to examine. @param tagCollection The tag collection to look up. @result Returns the number of entries in the CMTaggedBufferGroup that match tagCollection.

func CMTaggedBufferGroupGetTagCollectionAtIndex ¶

func CMTaggedBufferGroupGetTagCollectionAtIndex(group unsafe.Pointer, index int) unsafe.Pointer

@function CMTaggedBufferGroupGetTagCollectionAtIndex @abstract Returns a CMTagCollection from a CMTaggedBufferGroup by sequential indexing. @param group The CMTaggedBufferGroupRef to retrieve the tag collection from. @param index An index from 0 to count-1. @result Returns the tag collection, or NULL on failure.

func CMTaggedBufferGroupGetTypeID ¶

func CMTaggedBufferGroupGetTypeID() uint

func CMTextFormatDescriptionCopyAsBigEndianTextDescriptionBlockBuffer ¶

func CMTextFormatDescriptionCopyAsBigEndianTextDescriptionBlockBuffer(allocator unsafe.Pointer, textFormatDescription unsafe.Pointer, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMTextFormatDescriptionCopyAsBigEndianTextDescriptionBlockBuffer @abstract Copies the contents of a CMTextFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param textFormatDescription CMTextFormatDescription to be copied. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param blockBufferOut Receives new CMBlockBuffer containing TextDescription data structure in big-endian byte ordering.

func CMTextFormatDescriptionCreateFromBigEndianTextDescriptionBlockBuffer ¶

func CMTextFormatDescriptionCreateFromBigEndianTextDescriptionBlockBuffer(allocator unsafe.Pointer, textDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer, mediaType uint, formatDescriptionOut unsafe.Pointer) int

@function CMTextFormatDescriptionCreateFromBigEndianTextDescriptionBlockBuffer @abstract Creates a CMTextFormatDescription from a big-endian TextDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMTextFormatDescription object. May be NULL. @param textDescriptionBlockBuffer CMBlockBuffer containing TextDescription data structure in big-endian byte ordering. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param mediaType Pass kCMMediaType_Text or kCMMediaType_Subtitle. @param formatDescriptionOut Receives new CMTextFormatDescription.

func CMTextFormatDescriptionCreateFromBigEndianTextDescriptionData ¶

func CMTextFormatDescriptionCreateFromBigEndianTextDescriptionData(allocator unsafe.Pointer, textDescriptionData *uint8, size uint, flavor unsafe.Pointer, mediaType uint, formatDescriptionOut unsafe.Pointer) int

@function CMTextFormatDescriptionCreateFromBigEndianTextDescriptionData @abstract Creates a CMTextFormatDescription from a big-endian TextDescription data structure. @param allocator Allocator to use for allocating the CMTextFormatDescription object. May be NULL. @param textDescriptionData TextDescription data structure in big-endian byte ordering. @param size Size of TextDescription data structure. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param mediaType Pass kCMMediaType_Text or kCMMediaType_Subtitle. @param formatDescriptionOut Receives new CMTextFormatDescription.

func CMTextFormatDescriptionGetDefaultStyle ¶

func CMTextFormatDescriptionGetDefaultStyle(desc unsafe.Pointer, localFontIDOut *uint16, boldOut *uint8, italicOut *uint8, underlineOut *uint8, fontSizeOut *float64, colorComponentsOut *float64) int

func CMTextFormatDescriptionGetDefaultTextBox ¶

func CMTextFormatDescriptionGetDefaultTextBox(desc unsafe.Pointer, originIsAtTopLeft uint8, heightOfTextTrack float64, defaultTextBoxOut *corefoundation.CGRect) int

func CMTextFormatDescriptionGetDisplayFlags ¶

func CMTextFormatDescriptionGetDisplayFlags(desc unsafe.Pointer, displayFlagsOut *uint32) int

func CMTextFormatDescriptionGetFontName ¶

func CMTextFormatDescriptionGetFontName(desc unsafe.Pointer, localFontID uint16, fontNameOut unsafe.Pointer) int

func CMTextFormatDescriptionGetJustification ¶

func CMTextFormatDescriptionGetJustification(desc unsafe.Pointer, horizontaJustificationlOut *int8, verticalJustificationOut *int8) int

func CMTimeCodeFormatDescriptionCopyAsBigEndianTimeCodeDescriptionBlockBuffer ¶

func CMTimeCodeFormatDescriptionCopyAsBigEndianTimeCodeDescriptionBlockBuffer(allocator unsafe.Pointer, timeCodeFormatDescription unsafe.Pointer, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMTimeCodeFormatDescriptionCopyAsBigEndianTimeCodeDescriptionBlockBuffer @abstract Copies the contents of a CMTimeCodeFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param timeCodeFormatDescription CMTimeCodeFormatDescription to be copied. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param blockBufferOut Receives new CMBlockBuffer containing TimeCodeDescription data structure in big-endian byte ordering.

func CMTimeCodeFormatDescriptionCreate ¶

func CMTimeCodeFormatDescriptionCreate(allocator unsafe.Pointer, timeCodeFormatType uint, frameDuration CMTime, frameQuanta uint32, flags uint32, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionBlockBuffer ¶

func CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionBlockBuffer(allocator unsafe.Pointer, timeCodeDescriptionBlockBuffer unsafe.Pointer, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionBlockBuffer @abstract Creates a CMTimeCodeFormatDescription from a big-endian TimeCodeDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMTimeCodeFormatDescription object. May be NULL. @param timeCodeDescriptionBlockBuffer CMBlockBuffer containing TimeCodeDescription data structure in big-endian byte ordering. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMTimeCodeFormatDescription.

func CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionData ¶

func CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionData(allocator unsafe.Pointer, timeCodeDescriptionData *uint8, size uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMTimeCodeFormatDescriptionCreateFromBigEndianTimeCodeDescriptionData @abstract Creates a CMTimeCodeFormatDescription from a big-endian TimeCodeDescription data structure. @param allocator Allocator to use for allocating the CMTimeCodeFormatDescription object. May be NULL. @param timeCodeDescriptionData TimeCodeDescription data structure in big-endian byte ordering. @param size Size of TimeCodeDescription data structure. @param flavor Reserved for future use. Pass NULL for QuickTime Movie or ISO flavor. @param formatDescriptionOut Receives new CMTimeCodeFormatDescription.

func CMTimeCodeFormatDescriptionGetFrameQuanta ¶

func CMTimeCodeFormatDescriptionGetFrameQuanta(timeCodeFormatDescription unsafe.Pointer) uint32

func CMTimeCodeFormatDescriptionGetTimeCodeFlags ¶

func CMTimeCodeFormatDescriptionGetTimeCodeFlags(desc unsafe.Pointer) uint32

func CMTimeCompare ¶

func CMTimeCompare(time1 CMTime, time2 CMTime) int32

func CMTimeCopyAsDictionary ¶

func CMTimeCopyAsDictionary(time_ CMTime, allocator unsafe.Pointer) unsafe.Pointer

func CMTimeCopyDescription ¶

func CMTimeCopyDescription(allocator unsafe.Pointer, time_ CMTime) unsafe.Pointer

func CMTimeGetSeconds ¶

func CMTimeGetSeconds(time_ CMTime) float64

func CMTimeMappingCopyAsDictionary ¶

func CMTimeMappingCopyAsDictionary(mapping CMTimeMapping, allocator unsafe.Pointer) unsafe.Pointer

@function CMTimeMappingCopyAsDictionary @abstract Returns a CFDictionary version of a CMTimeMapping. @discussion This is useful when putting CMTimeMappings in CF container types. @result A CFDictionary version of the CMTimeMapping.

func CMTimeMappingCopyDescription ¶

func CMTimeMappingCopyDescription(allocator unsafe.Pointer, mapping CMTimeMapping) unsafe.Pointer

@function CMTimeMappingCopyDescription @abstract Creates a CFString with a description of a CMTimeMapping (just like CFCopyDescription). @discussion This is used from within CFShow on an object that contains CMTimeMapping fields. It is also useful from other client debugging code. The caller owns the returned CFString and is responsible for releasing it. @result The created CFString description.

func CMTimeMappingShow ¶

func CMTimeMappingShow(mapping CMTimeMapping)

@function CMTimeMappingShow @abstract Prints a description of a CMTimeMapping (just like CFShow). @discussion This is most useful from within gdb.

func CMTimeRangeContainsTime ¶

func CMTimeRangeContainsTime(range_ CMTimeRange, time_ CMTime) uint8

@function CMTimeRangeContainsTime @abstract Indicates whether a time is contained within a time range. @discussion This function returns a Boolean value that indicates whether the time specified by the <i>time</i> parameter is contained within the range specified by the <i>range</i> parameter. @result Returns true if the specified time is contained within the specified time range, false if it is not.

func CMTimeRangeContainsTimeRange ¶

func CMTimeRangeContainsTimeRange(range_ CMTimeRange, otherRange CMTimeRange) uint8

@function CMTimeRangeContainsTimeRange @abstract Indicates whether a time range is contained within a time range. @discussion This function returns a Boolean value that indicates whether the time range specified by the <i>range</i> parameter contains the range specified by the <i>otherRange</i> parameter. @result Returns true if the second time range is contained within the first time range, false if it is not.

func CMTimeRangeCopyAsDictionary ¶

func CMTimeRangeCopyAsDictionary(range_ CMTimeRange, allocator unsafe.Pointer) unsafe.Pointer

@function CMTimeRangeCopyAsDictionary @abstract Returns a CFDictionary version of a CMTimeRange. @discussion This is useful when putting CMTimeRanges in CF container types. @result A CFDictionary version of the CMTimeRange.

func CMTimeRangeCopyDescription ¶

func CMTimeRangeCopyDescription(allocator unsafe.Pointer, range_ CMTimeRange) unsafe.Pointer

@function CMTimeRangeCopyDescription @abstract Creates a CFString with a description of a CMTimeRange (just like CFCopyDescription). @discussion This is used from within CFShow on an object that contains CMTimeRange fields. It is also useful from other client debugging code. The caller owns the returned CFString and is responsible for releasing it. @result The created CFString description.

func CMTimeRangeEqual ¶

func CMTimeRangeEqual(range1 CMTimeRange, range2 CMTimeRange) uint8

@function CMTimeRangeEqual @abstract Returns a Boolean value that indicates whether two CMTimeRanges are identical. @discussion This function returns a Boolean value that indicates whether the time ranges specified by the <i>range1</i> and <i>range2</i> parameters are identical. @result Returns true if the two time ranges are identical, false if they differ.

func CMTimeRangeShow ¶

func CMTimeRangeShow(range_ CMTimeRange)

@function CMTimeRangeShow @abstract Prints a description of the CMTimeRange (just like CFShow). @discussion This is most useful from within gdb.

func CMTimeShow ¶

func CMTimeShow(time_ CMTime)

func CMTimebaseAddTimer ¶

func CMTimebaseAddTimer(timebase unsafe.Pointer, timer unsafe.Pointer, runloop unsafe.Pointer) int

func CMTimebaseAddTimerDispatchSource ¶

func CMTimebaseAddTimerDispatchSource(timebase unsafe.Pointer, timerSource *foundation.NSObject) int

func CMTimebaseCopySource ¶

func CMTimebaseCopySource(timebase unsafe.Pointer) unsafe.Pointer

func CMTimebaseCopySourceClock ¶

func CMTimebaseCopySourceClock(timebase unsafe.Pointer) unsafe.Pointer

func CMTimebaseCopySourceTimebase ¶

func CMTimebaseCopySourceTimebase(timebase unsafe.Pointer) unsafe.Pointer

func CMTimebaseCopyUltimateSourceClock ¶

func CMTimebaseCopyUltimateSourceClock(timebase unsafe.Pointer) unsafe.Pointer

func CMTimebaseCreateWithSourceClock ¶

func CMTimebaseCreateWithSourceClock(allocator unsafe.Pointer, sourceClock unsafe.Pointer, timebaseOut unsafe.Pointer) int

func CMTimebaseCreateWithSourceTimebase ¶

func CMTimebaseCreateWithSourceTimebase(allocator unsafe.Pointer, sourceTimebase unsafe.Pointer, timebaseOut unsafe.Pointer) int

func CMTimebaseGetEffectiveRate ¶

func CMTimebaseGetEffectiveRate(timebase unsafe.Pointer) float64

func CMTimebaseGetRate ¶

func CMTimebaseGetRate(timebase unsafe.Pointer) float64

func CMTimebaseGetTimeAndRate ¶

func CMTimebaseGetTimeAndRate(timebase unsafe.Pointer, timeOut *CMTime, rateOut *float64) int

func CMTimebaseGetTypeID ¶

func CMTimebaseGetTypeID() uint

func CMTimebaseNotificationBarrier ¶

func CMTimebaseNotificationBarrier(timebase unsafe.Pointer) int

@function CMTimebaseNotificationBarrier @abstract Requests that the timebase wait until it is not posting any notifications.

func CMTimebaseRemoveTimer ¶

func CMTimebaseRemoveTimer(timebase unsafe.Pointer, timer unsafe.Pointer) int

func CMTimebaseRemoveTimerDispatchSource ¶

func CMTimebaseRemoveTimerDispatchSource(timebase unsafe.Pointer, timerSource *foundation.NSObject) int

func CMTimebaseSetAnchorTime ¶

func CMTimebaseSetAnchorTime(timebase unsafe.Pointer, timebaseTime CMTime, immediateSourceTime CMTime) int

func CMTimebaseSetRate ¶

func CMTimebaseSetRate(timebase unsafe.Pointer, rate float64) int

func CMTimebaseSetRateAndAnchorTime ¶

func CMTimebaseSetRateAndAnchorTime(timebase unsafe.Pointer, rate float64, timebaseTime CMTime, immediateSourceTime CMTime) int

func CMTimebaseSetSourceClock ¶

func CMTimebaseSetSourceClock(timebase unsafe.Pointer, newSourceClock unsafe.Pointer) int

func CMTimebaseSetSourceTimebase ¶

func CMTimebaseSetSourceTimebase(timebase unsafe.Pointer, newSourceTimebase unsafe.Pointer) int

func CMTimebaseSetTime ¶

func CMTimebaseSetTime(timebase unsafe.Pointer, time_ CMTime) int

func CMTimebaseSetTimerDispatchSourceNextFireTime ¶

func CMTimebaseSetTimerDispatchSourceNextFireTime(timebase unsafe.Pointer, timerSource *foundation.NSObject, fireTime CMTime, flags uint32) int

func CMTimebaseSetTimerDispatchSourceToFireImmediately ¶

func CMTimebaseSetTimerDispatchSourceToFireImmediately(timebase unsafe.Pointer, timerSource *foundation.NSObject) int

func CMTimebaseSetTimerNextFireTime ¶

func CMTimebaseSetTimerNextFireTime(timebase unsafe.Pointer, timer unsafe.Pointer, fireTime CMTime, flags uint32) int

func CMTimebaseSetTimerToFireImmediately ¶

func CMTimebaseSetTimerToFireImmediately(timebase unsafe.Pointer, timer unsafe.Pointer) int

func CMVideoFormatDescriptionCopyAsBigEndianImageDescriptionBlockBuffer ¶

func CMVideoFormatDescriptionCopyAsBigEndianImageDescriptionBlockBuffer(allocator unsafe.Pointer, videoFormatDescription unsafe.Pointer, stringEncoding uint, flavor unsafe.Pointer, blockBufferOut unsafe.Pointer) int

@function CMVideoFormatDescriptionCopyAsBigEndianImageDescriptionBlockBuffer @abstract Copies the contents of a CMVideoFormatDescription to a CMBlockBuffer in big-endian byte ordering. @discussion On return, the caller owns the returned CMBlockBuffer, and must release it when done with it. Note that the dataRefIndex field of the SampleDescription is intentionally filled with garbage values (0xFFFF). The caller must overwrite these values with a valid dataRefIndex if writing the SampleDescription to a QuickTime/ISO file. @param allocator Allocator to use for allocating the CMBlockBuffer object. May be NULL. @param videoFormatDescription CMVideoFormatDescription to be copied. @param stringEncoding Pass CFStringGetSystemEncoding() or GetApplicationTextEncoding(). @param flavor kCMImageDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param blockBufferOut Receives new CMBlockBuffer containing ImageDescription data structure in big-endian byte ordering.

func CMVideoFormatDescriptionCopyTagCollectionArray ¶

func CMVideoFormatDescriptionCopyTagCollectionArray(formatDescription unsafe.Pointer, tagCollectionsOut unsafe.Pointer) int

@function CMVideoFormatDescriptionCopyTagCollectionArray @abstract Copies the multi-image encoding properties as an array of CMTagCollections. @param formatDescription CMVideoFormatDescription being interrogated. @param tagCollectionsOut Returned TagCollections with CMTags such as kCMTagCategory_VideoLayerID and kCMTagCategory_StereoViewType. @discussion On return, the caller owns the returned CFArrayRef and must release it when done with it. This function copies the VideoLayerIDs and LeftAndRightViewIDs from hvcC and 3D Reference Displays Info SEI in the formatDescription. The returned values can be used to enable the multi-image decoding with kVTDecompressionPropertyKey_RequestedMVHEVCVideoLayerIDs. It also gives the eye mapping information for the pixel buffers of the decoded CMTaggedBufferGroups. @result Array of CMTagCollections. The result will be NULL if the CMVideoFormatDescription does not contain multi-image encoding parameters, or if there is some other error.

func CMVideoFormatDescriptionCreate ¶

func CMVideoFormatDescriptionCreate(allocator unsafe.Pointer, codecType uint, width int32, height int32, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMVideoFormatDescriptionCreateForImageBuffer ¶

func CMVideoFormatDescriptionCreateForImageBuffer(allocator unsafe.Pointer, imageBuffer unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionBlockBuffer ¶

func CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionBlockBuffer(allocator unsafe.Pointer, imageDescriptionBlockBuffer unsafe.Pointer, stringEncoding uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionBlockBuffer @abstract Creates a CMVideoFormatDescription from a big-endian ImageDescription data structure in a CMBlockBuffer. @param allocator Allocator to use for allocating the CMVideoFormatDescription object. May be NULL. @param imageDescriptionBlockBuffer CMBlockBuffer containing ImageDescription data structure in big-endian byte ordering. @param stringEncoding Pass CFStringGetSystemEncoding() or GetApplicationTextEncoding(). @param flavor kCMImageDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param formatDescriptionOut Receives new CMVideoFormatDescription.

func CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionData ¶

func CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionData(allocator unsafe.Pointer, imageDescriptionData *uint8, size uint, stringEncoding uint, flavor unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

@function CMVideoFormatDescriptionCreateFromBigEndianImageDescriptionData @abstract Creates a CMVideoFormatDescription from a big-endian ImageDescription data structure. @param allocator Allocator to use for allocating the CMVideoFormatDescription object. May be NULL. @param imageDescriptionData ImageDescription data structure in big-endian byte ordering. @param size Size of ImageDescription data structure. @param stringEncoding Pass CFStringGetSystemEncoding() or GetApplicationTextEncoding(). @param flavor kCMImageDescriptionFlavor constant or NULL for QuickTimeMovie flavor. @param formatDescriptionOut Receives new CMVideoFormatDescription.

func CMVideoFormatDescriptionCreateFromH264ParameterSets ¶

func CMVideoFormatDescriptionCreateFromH264ParameterSets(allocator unsafe.Pointer, parameterSetCount uint, parameterSetPointers unsafe.Pointer, parameterSetSizes *uint, nALUnitHeaderLength int, formatDescriptionOut unsafe.Pointer) int

func CMVideoFormatDescriptionCreateFromHEVCParameterSets ¶

func CMVideoFormatDescriptionCreateFromHEVCParameterSets(allocator unsafe.Pointer, parameterSetCount uint, parameterSetPointers unsafe.Pointer, parameterSetSizes *uint, nALUnitHeaderLength int, extensions unsafe.Pointer, formatDescriptionOut unsafe.Pointer) int

func CMVideoFormatDescriptionGetCleanAperture ¶

func CMVideoFormatDescriptionGetCleanAperture(videoDesc unsafe.Pointer, originIsAtTopLeft uint8) corefoundation.CGRect

func CMVideoFormatDescriptionGetExtensionKeysCommonWithImageBuffers ¶

func CMVideoFormatDescriptionGetExtensionKeysCommonWithImageBuffers() unsafe.Pointer

func CMVideoFormatDescriptionGetH264ParameterSetAtIndex ¶

func CMVideoFormatDescriptionGetH264ParameterSetAtIndex(videoDesc unsafe.Pointer, parameterSetIndex uint, parameterSetPointerOut *uint8, parameterSetSizeOut *uint, parameterSetCountOut *uint, nALUnitHeaderLengthOut *int32) int

func CMVideoFormatDescriptionGetHEVCParameterSetAtIndex ¶

func CMVideoFormatDescriptionGetHEVCParameterSetAtIndex(videoDesc unsafe.Pointer, parameterSetIndex uint, parameterSetPointerOut *uint8, parameterSetSizeOut *uint, parameterSetCountOut *uint, nALUnitHeaderLengthOut *int32) int

func CMVideoFormatDescriptionGetPresentationDimensions ¶

func CMVideoFormatDescriptionGetPresentationDimensions(videoDesc unsafe.Pointer, usePixelAspectRatio uint8, useCleanAperture uint8) corefoundation.CGSize

func CMVideoFormatDescriptionMatchesImageBuffer ¶

func CMVideoFormatDescriptionMatchesImageBuffer(desc unsafe.Pointer, imageBuffer unsafe.Pointer) uint8

func KCMFormatDescriptionAlphaChannelMode_PremultipliedAlpha ¶

func KCMFormatDescriptionAlphaChannelMode_PremultipliedAlpha() uintptr

func KCMFormatDescriptionAlphaChannelMode_StraightAlpha ¶

func KCMFormatDescriptionAlphaChannelMode_StraightAlpha() uintptr

func KCMFormatDescriptionCameraCalibrationExtrinsicOriginSource_StereoCameraSystemBaseline ¶

func KCMFormatDescriptionCameraCalibrationExtrinsicOriginSource_StereoCameraSystemBaseline() uintptr

func KCMFormatDescriptionCameraCalibrationLensAlgorithmKind_ParametricLens ¶

func KCMFormatDescriptionCameraCalibrationLensAlgorithmKind_ParametricLens() uintptr

func KCMFormatDescriptionCameraCalibrationLensDomain_Color ¶

func KCMFormatDescriptionCameraCalibrationLensDomain_Color() uintptr

func KCMFormatDescriptionCameraCalibrationLensRole_Left ¶

func KCMFormatDescriptionCameraCalibrationLensRole_Left() uintptr

func KCMFormatDescriptionCameraCalibrationLensRole_Mono ¶

func KCMFormatDescriptionCameraCalibrationLensRole_Mono() uintptr

func KCMFormatDescriptionCameraCalibrationLensRole_Right ¶

func KCMFormatDescriptionCameraCalibrationLensRole_Right() uintptr

func KCMFormatDescriptionCameraCalibration_ExtrinsicOrientationQuaternion ¶

func KCMFormatDescriptionCameraCalibration_ExtrinsicOrientationQuaternion() uintptr

func KCMFormatDescriptionCameraCalibration_ExtrinsicOriginSource ¶

func KCMFormatDescriptionCameraCalibration_ExtrinsicOriginSource() uintptr

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrix ¶

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrix() uintptr

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrixProjectionOffset ¶

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrixProjectionOffset() uintptr

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrixReferenceDimensions ¶

func KCMFormatDescriptionCameraCalibration_IntrinsicMatrixReferenceDimensions() uintptr

func KCMFormatDescriptionCameraCalibration_LensAlgorithmKind ¶

func KCMFormatDescriptionCameraCalibration_LensAlgorithmKind() uintptr

The following keys are required in each kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection dictionary. @constant kCMFormatDescriptionCameraCalibration_LensAlgorithmKind @abstract Specifies the camera calibration methodology. @discussion If the algorithm kind is ParametricLens, the camera lens collection requires camera intrinsic and extrinsic parameters. @constant kCMFormatDescriptionCameraCalibration_LensDomain @abstract Specifies the kind of lens (e.g., color). @constant kCMFormatDescriptionCameraCalibration_LensIdentifier @abstract Specifies a unique number associated with a lens. @constant kCMFormatDescriptionCameraCalibration_LensRole @abstract Specifies the particular use of the lens in the camera system (e.g., left or right for a stereo system). @discussion For a stereoscopic camera system, one lens should have the left role and another should have the right role. @constant kCMFormatDescriptionCameraCalibration_LensDistortions @abstract Specifies the first and second radial distortion coefficients(k1 and k2) used to correct the distortion that appeared as curved lines for straight lines and the first and second tangential distortion coefficients(p1 and p2) used to correct the distortion caused by a lens's improper alignment of physical elements. @discussion The values are in a CFArray of four CFNumbers in k1, k2, p1 and p2 order. @constant kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX @abstract Specifies a three element polynomial for mapping x axis UV parameters with an adjustment using the equation `x' = polynomialX[0] + polynomialX[1]*x + polynomialX[2]*x^3`. @discussion The values are in a CFArray of three CFNumbers(float) in the order polynomialX[0], polynomialX[1] & polynomialX[2]. The polynomial transform origin is at the center of the frame. The default values of elements of polynomialX[] are [0.0, 1.0, 0.0]. @constant kCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialY @abstract Specifies a three element polynomial for mapping y axis UV parameters with an adjustment using the equation `y' = polynomialY[0] + polynomialY[1]*y + polynomialY[2]*y^3`. @discussion The values are in a CFArray of three CFNumbers(float) in the order polynomialY[0], polynomialY[1] & polynomialY[2]. The polynomial transform origin is at the center of the frame. The default values of elements of polynomialY[] are [0.0, 1.0, 0.0]. @constant kCMFormatDescriptionCameraCalibration_RadialAngleLimit @abstract Specifies the outer limit of the calibration validity in degrees of angle eccentric from the optical axis. @discussion The value is linked to radial distortion corrections with k1 and k2. @constant kCMFormatDescriptionCameraCalibration_IntrinsicMatrix @abstract Specifies the 3x3 camera intrinsic matrix for camera calibration. @discussion Camera intrinsic matrix is a CFData containing a matrix_float3x3, which is column-major. Each element is in IEEE754 native-endian 32-bit floating point. It has the following contents: fx s cx 0 fy cy 0 0 1 fx and fy are the focal length in pixels. For square pixels, they will have the same value. cx and cy are the coordinates of the principal point. The origin is the upper left of the frame. s is an optional skew factor. @constant kCMFormatDescriptionCameraCalibration_IntrinsicMatrixProjectionOffset @abstract Specifies the offset of the point of perspective relative to the rectilinear projection. @constant kCMFormatDescriptionCameraCalibration_IntrinsicMatrixReferenceDimensions @abstract Specifies the image dimensions to which the camera’s intrinsic matrix values are relative. @discussion Values are width and height in a CFDictionary. Dictionary keys are compatible with CGSize dictionary, namely "Width" and "Height". @constant kCMFormatDescriptionCameraCalibration_ExtrinsicOriginSource @abstract Identifies how the origin of the camera system's extrinsics are determined. @discussion The 'blin' value indicates the center of transform is determined by the point mid way along the dimensions indicated by the StereoCameraSystemBaselineBox held in the StereoCameraSystemBox. Each left and right lens within a stereoscopic camera system is equidistant from this point, so the 'blin' value is halved when associated with the respective left and right lenses. @constant kCMFormatDescriptionCameraCalibration_ExtrinsicOrientationQuaternion @abstract Specifies a camera’s orientation to a world or scene coordinate system. The orientation value is a unit quaternion(ix, iy, and iz) instead of the classical 3x3 matrix. @discussion The values are in a CFArray of three CFNumbers in ix, iy, and iz order.

func KCMFormatDescriptionCameraCalibration_LensDistortions ¶

func KCMFormatDescriptionCameraCalibration_LensDistortions() uintptr

func KCMFormatDescriptionCameraCalibration_LensDomain ¶

func KCMFormatDescriptionCameraCalibration_LensDomain() uintptr

func KCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX ¶

func KCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialX() uintptr

func KCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialY ¶

func KCMFormatDescriptionCameraCalibration_LensFrameAdjustmentsPolynomialY() uintptr

func KCMFormatDescriptionCameraCalibration_LensIdentifier ¶

func KCMFormatDescriptionCameraCalibration_LensIdentifier() uintptr

func KCMFormatDescriptionCameraCalibration_LensRole ¶

func KCMFormatDescriptionCameraCalibration_LensRole() uintptr

func KCMFormatDescriptionCameraCalibration_RadialAngleLimit ¶

func KCMFormatDescriptionCameraCalibration_RadialAngleLimit() uintptr

func KCMFormatDescriptionChromaLocation_Bottom ¶

func KCMFormatDescriptionChromaLocation_Bottom() uintptr

func KCMFormatDescriptionChromaLocation_BottomLeft ¶

func KCMFormatDescriptionChromaLocation_BottomLeft() uintptr

func KCMFormatDescriptionChromaLocation_Center ¶

func KCMFormatDescriptionChromaLocation_Center() uintptr

func KCMFormatDescriptionChromaLocation_DV420 ¶

func KCMFormatDescriptionChromaLocation_DV420() uintptr

func KCMFormatDescriptionChromaLocation_Left ¶

func KCMFormatDescriptionChromaLocation_Left() uintptr

func KCMFormatDescriptionChromaLocation_Top ¶

func KCMFormatDescriptionChromaLocation_Top() uintptr

func KCMFormatDescriptionChromaLocation_TopLeft ¶

func KCMFormatDescriptionChromaLocation_TopLeft() uintptr

func KCMFormatDescriptionColorPrimaries_DCI_P3 ¶

func KCMFormatDescriptionColorPrimaries_DCI_P3() uintptr

func KCMFormatDescriptionColorPrimaries_EBU_3213 ¶

func KCMFormatDescriptionColorPrimaries_EBU_3213() uintptr

func KCMFormatDescriptionColorPrimaries_ITU_R_709_2 ¶

func KCMFormatDescriptionColorPrimaries_ITU_R_709_2() uintptr

func KCMFormatDescriptionColorPrimaries_ITU_R_2020 ¶

func KCMFormatDescriptionColorPrimaries_ITU_R_2020() uintptr

func KCMFormatDescriptionColorPrimaries_P3_D65 ¶

func KCMFormatDescriptionColorPrimaries_P3_D65() uintptr

func KCMFormatDescriptionColorPrimaries_P22 ¶

func KCMFormatDescriptionColorPrimaries_P22() uintptr

func KCMFormatDescriptionColorPrimaries_SMPTE_C ¶

func KCMFormatDescriptionColorPrimaries_SMPTE_C() uintptr

func KCMFormatDescriptionConformsToMPEG2VideoProfile ¶

func KCMFormatDescriptionConformsToMPEG2VideoProfile() uintptr

func KCMFormatDescriptionExtensionKey_MetadataKeyTable ¶

func KCMFormatDescriptionExtensionKey_MetadataKeyTable() uintptr

func KCMFormatDescriptionExtension_AlphaChannelMode ¶

func KCMFormatDescriptionExtension_AlphaChannelMode() uintptr

func KCMFormatDescriptionExtension_AlternativeTransferCharacteristics ¶

func KCMFormatDescriptionExtension_AlternativeTransferCharacteristics() uintptr

func KCMFormatDescriptionExtension_AmbientViewingEnvironment ¶

func KCMFormatDescriptionExtension_AmbientViewingEnvironment() uintptr

func KCMFormatDescriptionExtension_AuxiliaryTypeInfo ¶

func KCMFormatDescriptionExtension_AuxiliaryTypeInfo() uintptr

func KCMFormatDescriptionExtension_BitsPerComponent ¶

func KCMFormatDescriptionExtension_BitsPerComponent() uintptr

func KCMFormatDescriptionExtension_BytesPerRow ¶

func KCMFormatDescriptionExtension_BytesPerRow() uintptr

func KCMFormatDescriptionExtension_CameraCalibrationDataLensCollection ¶

func KCMFormatDescriptionExtension_CameraCalibrationDataLensCollection() uintptr

@constant kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection @abstract Specifies intrinsic and extrinsic parameters for single or multiple lenses. @discussion The property value is an array of dictionaries describing the camera calibration data for each lens. The camera calibration data includes intrinsics and extrinics with other parameters. For a stereoscopic camera system, the left and right lens signaling can be done with the kCMFormatDescriptionCameraCalibration_LensRole key and its value.

func KCMFormatDescriptionExtension_ChromaLocationBottomField ¶

func KCMFormatDescriptionExtension_ChromaLocationBottomField() uintptr

func KCMFormatDescriptionExtension_ChromaLocationTopField ¶

func KCMFormatDescriptionExtension_ChromaLocationTopField() uintptr

func KCMFormatDescriptionExtension_CleanAperture ¶

func KCMFormatDescriptionExtension_CleanAperture() uintptr

func KCMFormatDescriptionExtension_ColorPrimaries ¶

func KCMFormatDescriptionExtension_ColorPrimaries() uintptr

func KCMFormatDescriptionExtension_ContainsAlphaChannel ¶

func KCMFormatDescriptionExtension_ContainsAlphaChannel() uintptr

func KCMFormatDescriptionExtension_ContentColorVolume ¶

func KCMFormatDescriptionExtension_ContentColorVolume() uintptr

func KCMFormatDescriptionExtension_ContentLightLevelInfo ¶

func KCMFormatDescriptionExtension_ContentLightLevelInfo() uintptr

func KCMFormatDescriptionExtension_ConvertedFromExternalSphericalTags ¶

func KCMFormatDescriptionExtension_ConvertedFromExternalSphericalTags() uintptr

@constant kCMFormatDescriptionExtension_ConvertedFromExternalSphericalTags @abstract Indicates that the image description contains projected media data converted from an external format @discussion This format description extension is included if boxes containing external stereoscopic or spherical projection information were parsed.

func KCMFormatDescriptionExtension_Depth ¶

func KCMFormatDescriptionExtension_Depth() uintptr

func KCMFormatDescriptionExtension_FieldCount ¶

func KCMFormatDescriptionExtension_FieldCount() uintptr

func KCMFormatDescriptionExtension_FieldDetail ¶

func KCMFormatDescriptionExtension_FieldDetail() uintptr

func KCMFormatDescriptionExtension_FormatName ¶

func KCMFormatDescriptionExtension_FormatName() uintptr

func KCMFormatDescriptionExtension_FullRangeVideo ¶

func KCMFormatDescriptionExtension_FullRangeVideo() uintptr

func KCMFormatDescriptionExtension_GammaLevel ¶

func KCMFormatDescriptionExtension_GammaLevel() uintptr

func KCMFormatDescriptionExtension_HasAdditionalViews ¶

func KCMFormatDescriptionExtension_HasAdditionalViews() uintptr

@constant kCMFormatDescriptionExtension_HasAdditionalViews @abstract Indicates that one or more additional views may be present beyond stereo left and stereo right eyes (e.g,. a “centerline” view). @discussion The value is a CFBoolean holding presence of additional eye views in the stream.

func KCMFormatDescriptionExtension_HasLeftStereoEyeView ¶

func KCMFormatDescriptionExtension_HasLeftStereoEyeView() uintptr

@constant kCMFormatDescriptionExtension_HasLeftStereoEyeView @abstract Indicates the stereo left eye is present in video frames. @discussion The value is a CFBoolean holding presence of left eye view in the stream.

func KCMFormatDescriptionExtension_HasRightStereoEyeView ¶

func KCMFormatDescriptionExtension_HasRightStereoEyeView() uintptr

@constant kCMFormatDescriptionExtension_HasRightStereoEyeView @abstract Indicates the stereo right eye is present in video frames. @discussion The value is a CFBoolean holding presence of right eye view in the stream.

func KCMFormatDescriptionExtension_HeroEye ¶

func KCMFormatDescriptionExtension_HeroEye() uintptr

@constant kCMFormatDescriptionExtension_HeroEye @abstract Indicates which of the two eyes should be used as the primary when rendering in 2D. It is usually perpendicular to the target image surface. @constant kCMFormatDescriptionHeroEye_Left Indicates the left eye is the hero eye. @constant kCMFormatDescriptionHeroEye_Right Indicates the right eye is the hero eye. @discussion The value is a CFString holding one of the kCMFormatDescriptionHeroEye_* constants.

func KCMFormatDescriptionExtension_HorizontalDisparityAdjustment ¶

func KCMFormatDescriptionExtension_HorizontalDisparityAdjustment() uintptr

@constant kCMFormatDescriptionExtension_HorizontalDisparityAdjustment @abstract Indicates a relative shift of the left and right images, which changes the zero parallax plane. @discussion The value encoded in normalized image space is a CFNumber holding a signed 32-bit integer measured over the range of -10000 to 10000 mapping to the uniform range [-1.0...1.0]. The interval of 0.0 to 1.0 or 0 to 10000 maps onto the stereo eye view image width. The negative interval 0.0 to -1.0 or 0 to -10000 similarly map onto the stereo eye view image width. The default value of 0 is interpreted if this property is not set. If the property is not set, NULL may be set and retrieved. The NULL value should be interpreted as meaning 0. This property is optional and should only be specified if a disparity adjustment including 0 is known.

func KCMFormatDescriptionExtension_HorizontalFieldOfView ¶

func KCMFormatDescriptionExtension_HorizontalFieldOfView() uintptr

func KCMFormatDescriptionExtension_ICCProfile ¶

func KCMFormatDescriptionExtension_ICCProfile() uintptr

func KCMFormatDescriptionExtension_LogTransferFunction ¶

func KCMFormatDescriptionExtension_LogTransferFunction() uintptr

@constant kCMFormatDescriptionExtension_LogTransferFunction Indicates that the transfer function or gamma of the content is a log format and identifies the specific log curve. @discussion The value is a CFString holding fully specified reverse DNS identifier. Content captured in Apple Log will have this key set to kCMFormatDescriptionLogTransferFunction_AppleLog. @constant kCMFormatDescriptionLogTransferFunction_AppleLog Indicates the Apple Log identifier. @discussion You can download the Apple Log Profile White Paper from the Apple Developer Downloads website.

func KCMFormatDescriptionExtension_MasteringDisplayColorVolume ¶

func KCMFormatDescriptionExtension_MasteringDisplayColorVolume() uintptr

func KCMFormatDescriptionExtension_OriginalCompressionSettings ¶

func KCMFormatDescriptionExtension_OriginalCompressionSettings() uintptr

@define kCMFormatDescriptionExtension_OriginalCompressionSettings @abstract This extension contains a media-type-specific dictionary of settings used to produce a compressed media buffer. @discussion This extension is valid for format descriptions of all media types, but the contents of the dictionary are defined in a media-specific way. The dictionary and its contents are valid property list objects. This means that dictionary keys are all CFStrings, and the values are all either CFNumber, CFString, CFBoolean, CFArray, CFDictionary, CFDate, or CFData.

func KCMFormatDescriptionExtension_PixelAspectRatio ¶

func KCMFormatDescriptionExtension_PixelAspectRatio() uintptr

func KCMFormatDescriptionExtension_ProjectionKind ¶

func KCMFormatDescriptionExtension_ProjectionKind() uintptr

@constant `kCMFormatDescriptionExtension_ProjectionKind` @abstract Indicates the projection that should be applied to presented decoded video frames. @constant `kCMFormatDescriptionProjectionKind_Rectilinear` Indicates rectilinear projection. Generally less than 90 degree field of view with no barrel distortion. @constant `kCMFormatDescriptionProjectionKind_Equirectangular` Indicates equirectangular projection of a 360 degree sphere to a rectangular plane, where longitude and latitude of the sphere are mapped linearly to the x,y axes of the plane. @constant `kCMFormatDescriptionProjectionKind_HalfEquirectangular` Indicates half equirectangular projection of a 180 degree hemisphere to a rectangular plane, where longitude and latitude of the sphere are mapped linearly to the x,y axes of the plane @constant `kCMFormatDescriptionProjectionKind_ParametricImmersive` Indicates a projection described mathematically by a model of camera lens calibration parameters. Parameters may be found in lens calibration metadata in kCMFormatDescriptionExtension_CameraCalibrationDataLensCollection with algorithm_kind being parametric lens @constant `kCMFormatDescriptionProjectionKind_AppleImmersiveVideo` Indicates a proprietary projection used for Apple Immersive Video. @discussion The value is a CFString holding one of the kCMFormatDescriptionProjectionKind_* constants.

func KCMFormatDescriptionExtension_ProtectedContentOriginalFormat ¶

func KCMFormatDescriptionExtension_ProtectedContentOriginalFormat() uintptr

func KCMFormatDescriptionExtension_RevisionLevel ¶

func KCMFormatDescriptionExtension_RevisionLevel() uintptr

func KCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms ¶

func KCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms() uintptr

@define kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms @abstract Sample description extension atoms that were not translated into other entries in the extensions dictionary. @discussion This key is used by sample description bridges to hold sample description extension atoms that they do not recognize. The extension is a CFDictionary mapping CFStrings of the four-char-code atom types to either CFDatas containing the atom payload or (to represent multiple atoms of a specific type) to CFArrays of CFData containing those payloads.

func KCMFormatDescriptionExtension_SpatialQuality ¶

func KCMFormatDescriptionExtension_SpatialQuality() uintptr

func KCMFormatDescriptionExtension_StereoCameraBaseline ¶

func KCMFormatDescriptionExtension_StereoCameraBaseline() uintptr

@constant kCMFormatDescriptionExtension_StereoCameraBaseline @abstract Indicates the distance between centers of the lenses of the camera system. @discussion The value is a CFNumber holding an unsigned 32-bit integer that is interpreted in micrometers or thousandths of a millimeter (e.g., 63123 is 63.123 millimeters). This property is optional and should only be specified if the distance is known.

func KCMFormatDescriptionExtension_TemporalQuality ¶

func KCMFormatDescriptionExtension_TemporalQuality() uintptr

func KCMFormatDescriptionExtension_TransferFunction ¶

func KCMFormatDescriptionExtension_TransferFunction() uintptr

func KCMFormatDescriptionExtension_Vendor ¶

func KCMFormatDescriptionExtension_Vendor() uintptr

func KCMFormatDescriptionExtension_VerbatimISOSampleEntry ¶

func KCMFormatDescriptionExtension_VerbatimISOSampleEntry() uintptr

@define kCMFormatDescriptionExtension_VerbatimISOSampleEntry @abstract Preserves the original ISOSampleEntry data. @discussion This extension is used to ensure that roundtrips from ISO Sample Entry (ie. AudioSampleEntry or VisualSampleEntry) to CMFormatDescriptions back to ISO Sample Entry preserve the exact original sample descriptions. IMPORTANT: If you make a modified clone of a CMFormatDescription, you must delete this extension from the clone, or your modifications could be lost.

func KCMFormatDescriptionExtension_VerbatimImageDescription ¶

func KCMFormatDescriptionExtension_VerbatimImageDescription() uintptr

func KCMFormatDescriptionExtension_VerbatimSampleDescription ¶

func KCMFormatDescriptionExtension_VerbatimSampleDescription() uintptr

@define kCMFormatDescriptionExtension_VerbatimSampleDescription @abstract Preserves the original SampleDescription data. @discussion This extension is used to ensure that roundtrips from sample descriptions to CMFormatDescriptions back to sample descriptions preserve the exact original sample descriptions. IMPORTANT: If you make a modified clone of a CMFormatDescription, you must delete this extension from the clone, or your modifications could be lost.

func KCMFormatDescriptionExtension_Version ¶

func KCMFormatDescriptionExtension_Version() uintptr

func KCMFormatDescriptionExtension_ViewPackingKind ¶

func KCMFormatDescriptionExtension_ViewPackingKind() uintptr

@constant `kCMFormatDescriptionExtension_ViewPackingKind` @abstract Indicates the packing type of stereoscopic video frames. @constant `kCMFormatDescriptionViewPackingKind_SideBySide` Indicates that frames are packed side-by-side. @constant `kCMFormatDescriptionViewPackingKind_OverUnder` Indicates that frames are packed over under. @discussion The value is a CFString holding one of the kCMFormatDescriptionViewPackingKind_* constants.

func KCMFormatDescriptionExtension_YCbCrMatrix ¶

func KCMFormatDescriptionExtension_YCbCrMatrix() uintptr

func KCMFormatDescriptionFieldDetail_SpatialFirstLineEarly ¶

func KCMFormatDescriptionFieldDetail_SpatialFirstLineEarly() uintptr

func KCMFormatDescriptionFieldDetail_SpatialFirstLineLate ¶

func KCMFormatDescriptionFieldDetail_SpatialFirstLineLate() uintptr

func KCMFormatDescriptionFieldDetail_TemporalBottomFirst ¶

func KCMFormatDescriptionFieldDetail_TemporalBottomFirst() uintptr

func KCMFormatDescriptionFieldDetail_TemporalTopFirst ¶

func KCMFormatDescriptionFieldDetail_TemporalTopFirst() uintptr

func KCMFormatDescriptionHeroEye_Left ¶

func KCMFormatDescriptionHeroEye_Left() uintptr

func KCMFormatDescriptionHeroEye_Right ¶

func KCMFormatDescriptionHeroEye_Right() uintptr

func KCMFormatDescriptionKey_CleanApertureHeight ¶

func KCMFormatDescriptionKey_CleanApertureHeight() uintptr

func KCMFormatDescriptionKey_CleanApertureHeightRational ¶

func KCMFormatDescriptionKey_CleanApertureHeightRational() uintptr

func KCMFormatDescriptionKey_CleanApertureHorizontalOffset ¶

func KCMFormatDescriptionKey_CleanApertureHorizontalOffset() uintptr

func KCMFormatDescriptionKey_CleanApertureHorizontalOffsetRational ¶

func KCMFormatDescriptionKey_CleanApertureHorizontalOffsetRational() uintptr

func KCMFormatDescriptionKey_CleanApertureVerticalOffset ¶

func KCMFormatDescriptionKey_CleanApertureVerticalOffset() uintptr

func KCMFormatDescriptionKey_CleanApertureVerticalOffsetRational ¶

func KCMFormatDescriptionKey_CleanApertureVerticalOffsetRational() uintptr

func KCMFormatDescriptionKey_CleanApertureWidth ¶

func KCMFormatDescriptionKey_CleanApertureWidth() uintptr

func KCMFormatDescriptionKey_CleanApertureWidthRational ¶

func KCMFormatDescriptionKey_CleanApertureWidthRational() uintptr

func KCMFormatDescriptionKey_PixelAspectRatioHorizontalSpacing ¶

func KCMFormatDescriptionKey_PixelAspectRatioHorizontalSpacing() uintptr

func KCMFormatDescriptionKey_PixelAspectRatioVerticalSpacing ¶

func KCMFormatDescriptionKey_PixelAspectRatioVerticalSpacing() uintptr

func KCMFormatDescriptionLogTransferFunction_AppleLog ¶

func KCMFormatDescriptionLogTransferFunction_AppleLog() uintptr

func KCMFormatDescriptionProjectionKind_AppleImmersiveVideo ¶

func KCMFormatDescriptionProjectionKind_AppleImmersiveVideo() uintptr

func KCMFormatDescriptionProjectionKind_Equirectangular ¶

func KCMFormatDescriptionProjectionKind_Equirectangular() uintptr

func KCMFormatDescriptionProjectionKind_HalfEquirectangular ¶

func KCMFormatDescriptionProjectionKind_HalfEquirectangular() uintptr

func KCMFormatDescriptionProjectionKind_ParametricImmersive ¶

func KCMFormatDescriptionProjectionKind_ParametricImmersive() uintptr

func KCMFormatDescriptionProjectionKind_Rectilinear ¶

func KCMFormatDescriptionProjectionKind_Rectilinear() uintptr

func KCMFormatDescriptionTransferFunction_ITU_R_709_2 ¶

func KCMFormatDescriptionTransferFunction_ITU_R_709_2() uintptr

func KCMFormatDescriptionTransferFunction_ITU_R_2020 ¶

func KCMFormatDescriptionTransferFunction_ITU_R_2020() uintptr

func KCMFormatDescriptionTransferFunction_ITU_R_2100_HLG ¶

func KCMFormatDescriptionTransferFunction_ITU_R_2100_HLG() uintptr

func KCMFormatDescriptionTransferFunction_Linear ¶

func KCMFormatDescriptionTransferFunction_Linear() uintptr

func KCMFormatDescriptionTransferFunction_SMPTE_240M_1995 ¶

func KCMFormatDescriptionTransferFunction_SMPTE_240M_1995() uintptr

func KCMFormatDescriptionTransferFunction_SMPTE_ST_428_1 ¶

func KCMFormatDescriptionTransferFunction_SMPTE_ST_428_1() uintptr

func KCMFormatDescriptionTransferFunction_SMPTE_ST_2084_PQ ¶

func KCMFormatDescriptionTransferFunction_SMPTE_ST_2084_PQ() uintptr

func KCMFormatDescriptionTransferFunction_UseGamma ¶

func KCMFormatDescriptionTransferFunction_UseGamma() uintptr

func KCMFormatDescriptionTransferFunction_sRGB ¶

func KCMFormatDescriptionTransferFunction_sRGB() uintptr

func KCMFormatDescriptionVendor_Apple ¶

func KCMFormatDescriptionVendor_Apple() uintptr

func KCMFormatDescriptionViewPackingKind_OverUnder ¶

func KCMFormatDescriptionViewPackingKind_OverUnder() uintptr

func KCMFormatDescriptionViewPackingKind_SideBySide ¶

func KCMFormatDescriptionViewPackingKind_SideBySide() uintptr

func KCMFormatDescriptionYCbCrMatrix_ITU_R_601_4 ¶

func KCMFormatDescriptionYCbCrMatrix_ITU_R_601_4() uintptr

func KCMFormatDescriptionYCbCrMatrix_ITU_R_709_2 ¶