gst

package module
v0.0.4 Latest Latest
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 Go to latest Published: Feb 14, 2020 License: Apache-2.0 Imports: 8 Imported by: 18

README

gst

a small go gstreamer binding

Examples

https://github.com/notedit/gst-go-demo

Documentation

Index

Constants

View Source 
const (
	PAD_UNKNOWN = PadDirection(C.GST_PAD_UNKNOWN)
	PAD_SRC     = PadDirection(C.GST_PAD_SRC)
	PAD_SINK    = PadDirection(C.GST_PAD_SINK)
)
View Source 
const (
	PadLinkOk             PadLinkReturn = C.GST_PAD_LINK_OK
	PadLinkWrongHierarchy               = C.GST_PAD_LINK_WRONG_HIERARCHY
	PadLinkWasLinked                    = C.GST_PAD_LINK_WAS_LINKED
	PadLinkWrongDirection               = C.GST_PAD_LINK_WRONG_DIRECTION
	PadLinkNoFormat                     = C.GST_PAD_LINK_NOFORMAT
	PadLinkNoSched                      = C.GST_PAD_LINK_NOSCHED
	PadLinkRefused                      = C.GST_PAD_LINK_REFUSED
)

Variables

This section is empty.

Functions

func BufferGetData 

func BufferGetData(gstBuffer *Buffer) (data []byte, err error)

func CheckPlugins 

func CheckPlugins(plugins []string) error

Types

type Bin 

type Bin struct {
	Element
}

func BinNew 

func BinNew(name string) (bin *Bin)

func ParseBinFromDescription added in v0.0.4 

func ParseBinFromDescription(binStr string, ghostPads bool) (bin *Bin, err error)

func (*Bin) Add 

func (b *Bin) Add(child *Element)

func (*Bin) AddMany 

func (b *Bin) AddMany(elements ...*Element)

func (*Bin) GetByName 

func (b *Bin) GetByName(name string) (element *Element)

func (*Bin) Remove 

func (b *Bin) Remove(child *Element)

type Buffer 

type Buffer struct {
	C *C.GstBuffer
}

func BufferNewAndAlloc 

func BufferNewAndAlloc(size uint) (gstBuffer *Buffer, err error)

func BufferNewWrapped 

func BufferNewWrapped(data []byte) (gstBuffer *Buffer, err error)

type Bus 

type Bus struct {
	C *C.GstBus
}

func (*Bus) HavePending 

func (b *Bus) HavePending() bool

func (*Bus) Pop 

func (b *Bus) Pop() (message *Message)

func (*Bus) Pull 

func (b *Bus) Pull(messageType MessageType) (message *Message)

type Caps 

type Caps struct {
	// contains filtered or unexported fields
}

func CapsFromString 

func CapsFromString(caps string) (gstCaps *Caps)

func (*Caps) String added in v0.0.3 

func (c *Caps) String() (str string)

func (*Caps) ToString 

func (c *Caps) ToString() (str string)

type Clock 

type Clock struct {
	C *C.GstClock
}

func (*Clock) GetClockTime 

func (c *Clock) GetClockTime() uint64

type Element 

type Element struct {
	GstElement *C.GstElement
	// contains filtered or unexported fields
}

func ElementFactoryMake 

func ElementFactoryMake(factoryName string, name string) (e *Element, err error)

func (*Element) AddPad 

func (e *Element) AddPad(pad *Pad) bool

func (*Element) GetClock 

func (e *Element) GetClock() (gstClock *Clock)

func (*Element) GetClockBaseTime 

func (e *Element) GetClockBaseTime() uint64

func (*Element) GetPadTemplate 

func (e *Element) GetPadTemplate(name string) (padTemplate *PadTemplate)

func (*Element) GetRequestPad 

func (e *Element) GetRequestPad(padTemplate *PadTemplate, name string, caps *Caps) (pad *Pad)

func (*Element) GetStaticPad 

func (e *Element) GetStaticPad(name string) (pad *Pad)

func (*Element) IsEOS 

func (e *Element) IsEOS() bool

appsink 

func (e *Element) Link(dst *Element) bool

func (*Element) Name 

func (e *Element) Name() (name string)

func (*Element) PullSample 

func (e *Element) PullSample() (sample *Sample, err error)

func (*Element) PushBuffer 

func (e *Element) PushBuffer(data []byte) (err error)

func (*Element) SetObject 

func (e *Element) SetObject(name string, value interface{})

func (*Element) SetPadAddedCallback 

func (e *Element) SetPadAddedCallback(callback PadAddedCallback)

type GMainLoop 

type GMainLoop struct {
	C *C.GMainLoop
}

func MainLoopNew 

func MainLoopNew() (loop *GMainLoop)

func (*GMainLoop) IsRuning added in v0.0.2 

func (l *GMainLoop) IsRuning() bool

func (*GMainLoop) Quit added in v0.0.2 

func (l *GMainLoop) Quit()

func (*GMainLoop) Run 

func (l *GMainLoop) Run()

type Message 

type Message struct {
	C *C.GstMessage
}

func (*Message) GetName 

func (message *Message) GetName() (name string)

func (*Message) GetStructure 

func (message *Message) GetStructure() (structure *Structure)

func (*Message) GetType 

func (message *Message) GetType() (messageType MessageType)

type MessageType 

type MessageType C.GstMessageType
const (
	MessageUnknown         MessageType = C.GST_MESSAGE_UNKNOWN
	MessageEos             MessageType = C.GST_MESSAGE_EOS
	MessageError           MessageType = C.GST_MESSAGE_ERROR
	MessageWarning         MessageType = C.GST_MESSAGE_WARNING
	MessageInfo            MessageType = C.GST_MESSAGE_INFO
	MessageTag             MessageType = C.GST_MESSAGE_TAG
	MessageBuffering       MessageType = C.GST_MESSAGE_BUFFERING
	MessageStateChanged    MessageType = C.GST_MESSAGE_STATE_CHANGED
	MessageStateDirty      MessageType = C.GST_MESSAGE_STATE_DIRTY
	MessageStepDone        MessageType = C.GST_MESSAGE_STEP_DONE
	MessageClockProvide    MessageType = C.GST_MESSAGE_CLOCK_PROVIDE
	MessageClockLost       MessageType = C.GST_MESSAGE_CLOCK_LOST
	MessageStructureChange MessageType = C.GST_MESSAGE_STREAM_STATUS
	MessageApplication     MessageType = C.GST_MESSAGE_APPLICATION
	MessageElement         MessageType = C.GST_MESSAGE_ELEMENT
	MessageSegmentStart    MessageType = C.GST_MESSAGE_SEGMENT_START
	MessageSegmentDone     MessageType = C.GST_MESSAGE_SEGMENT_DONE
	MessageDurationChanged MessageType = C.GST_MESSAGE_DURATION_CHANGED
	MessageLatency         MessageType = C.GST_MESSAGE_LATENCY
	MessageAsyncStart      MessageType = C.GST_MESSAGE_ASYNC_START
	MessageAsyncDone       MessageType = C.GST_MESSAGE_ASYNC_DONE
	MessageRequestState    MessageType = C.GST_MESSAGE_REQUEST_STATE
	MessageStepStart       MessageType = C.GST_MESSAGE_STEP_START
	MessageQos             MessageType = C.GST_MESSAGE_QOS
	MessageProgress        MessageType = C.GST_MESSAGE_PROGRESS
	MessageToc             MessageType = C.GST_MESSAGE_TOC
	MessageResetTime       MessageType = C.GST_MESSAGE_RESET_TIME
	MessageStreamStart     MessageType = C.GST_MESSAGE_STREAM_START
	MessageNeedContext     MessageType = C.GST_MESSAGE_NEED_CONTEXT
	MessageHaveContext     MessageType = C.GST_MESSAGE_HAVE_CONTEXT
	MessageExtended        MessageType = C.GST_MESSAGE_EXTENDED
	MessageDeviceAdded     MessageType = C.GST_MESSAGE_DEVICE_ADDED
	MessageDeviceRemoved   MessageType = C.GST_MESSAGE_DEVICE_REMOVED
	//MessagePropertyNotify   MessageType = C.GST_MESSAGE_PROPERTY_NOTIFY
	//MessageStreamCollection MessageType = C.GST_MESSAGE_STREAM_COLLECTION
	//MessageStreamsSelected  MessageType = C.GST_MESSAGE_STREAMS_SELECTED
	//MessageRedirect         MessageType = C.GST_MESSAGE_REDIRECT
	MessageAny MessageType = C.GST_MESSAGE_ANY
)

type Pad 

type Pad struct {
	// contains filtered or unexported fields
}

func (*Pad) GetCurrentCaps 

func (p *Pad) GetCurrentCaps() (gstCaps *Caps)

func (*Pad) IsEOS 

func (p *Pad) IsEOS() bool

func (*Pad) IsLinked added in v0.0.3 

func (p *Pad) IsLinked() bool
func (p *Pad) Link(sink *Pad) (padLinkReturn PadLinkReturn)

func (*Pad) Name added in v0.0.3 

func (p *Pad) Name() string
func (p *Pad) Unlink(sink *Pad) (padLinkReturn PadLinkReturn)

type PadAddedCallback 

type PadAddedCallback func(element *Element, pad *Pad)

type PadDirection 

type PadDirection C.GstPadDirection

func (PadDirection) String 

func (p PadDirection) String() string

type PadLinkReturn 

type PadLinkReturn int

type PadTemplate 

type PadTemplate struct {
	C *C.GstPadTemplate
}

type Pipeline 

type Pipeline struct {
	Bin
}

func ParseLaunch 

func ParseLaunch(pipelineStr string) (p *Pipeline, err error)

func PipelineNew 

func PipelineNew(name string) (e *Pipeline, err error)

func (*Pipeline) GetBus 

func (p *Pipeline) GetBus() (bus *Bus)

func (*Pipeline) GetClock 

func (p *Pipeline) GetClock() (clock *Clock)

func (*Pipeline) GetDelay 

func (p *Pipeline) GetDelay() uint64

func (*Pipeline) GetLatency 

func (p *Pipeline) GetLatency() uint64

func (*Pipeline) SetLatency 

func (p *Pipeline) SetLatency(latency uint64)

func (*Pipeline) SetState 

func (p *Pipeline) SetState(state StateOptions)

type Sample 

type Sample struct {
	Data     []byte
	Duration uint64
}

type StateOptions 

type StateOptions int
const (
	StateVoidPending StateOptions = C.GST_STATE_VOID_PENDING
	StateNull        StateOptions = C.GST_STATE_NULL
	StateReady       StateOptions = C.GST_STATE_READY
	StatePaused      StateOptions = C.GST_STATE_PAUSED
	StatePlaying     StateOptions = C.GST_STATE_PLAYING
)

type Structure 

type Structure struct {
	C *C.GstStructure
}

func NewStructure 

func NewStructure(name string) (structure *Structure)

func (*Structure) SetValue 

func (s *Structure) SetValue(name string, value interface{})

func (*Structure) ToString 

func (s *Structure) ToString() (str string)

Source Files

View all Source files

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