ffmpeg

func (Command) Args ¶

func (c Command) Args() []string

func (*Command) Run ¶

func (c *Command) Run(ctx context.Context) error

func (*Command) Start ¶

func (c *Command) Start(ctx context.Context) (<-chan progress.Progress, error)

func (*Command) Wait ¶

func (c *Command) Wait() error

func (*Command) WithAbortOn ¶

func (c *Command) WithAbortOn(a string) *Command

WithAbortOn Stop and abort on various conditions. The following flags are available:

empty_output: No packets were passed to the muxer, the output is empty.

empty_output_stream: No packets were passed to the muxer in some of the output streams.

func (*Command) WithAccurateSeek ¶

func (c *Command) WithAccurateSeek() *Command

WithAccurateSeek this option enables or disables accurate seeking in input files with the -ss option. It is enabled by default, so seeking is accurate when transcoding. Use -noaccurate_seek to disable it, which may be useful e.g. when copying some streams and transcoding the others.

func (*Command) WithApad ¶

func (c *Command) WithApad(a string) *Command

WithApad pad the output audio stream(s). This is the same as applying -af apad. Argument is a string of filter parameters composed the same as with the apad filter. -shortest must be set for this output for the option to take effect.

func (*Command) WithAspectRatio ¶

func (c *Command) WithAspectRatio(aspect string) *Command

WithAspectRatio set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)

func (*Command) WithAttachment ¶

func (c *Command) WithAttachment(filename string) *Command

WithAttachment adds an attachment to the output file.

func (*Command) WithAudioBitstreamFilters ¶

func (c *Command) WithAudioBitstreamFilters(filters string) *Command

WithAudioBitstreamFilters sets the audio bitstream filters.

func (*Command) WithAudioChannelLayout ¶

func (c *Command) WithAudioChannelLayout(layout string) *Command

WithAudioChannelLayout sets the channel layout.

func (*Command) WithAudioChannels ¶

func (c *Command) WithAudioChannels(channels int) *Command

WithAudioChannels sets the number of audio channels.

func (*Command) WithAudioCodec ¶

func (c *Command) WithAudioCodec(codec string) *Command

WithAudioCodec sets the audio codec.

func (*Command) WithAudioDriftThreshold ¶

func (c *Command) WithAudioDriftThreshold(threshold int) *Command

WithAudioDriftThreshold sets the audio drift threshold.

func (*Command) WithAudioFilters ¶

func (c *Command) WithAudioFilters(filters string) *Command

WithAudioFilters creates a complex filtergraph.

func (*Command) WithAudioFrames ¶

func (c *Command) WithAudioFrames(frames int) *Command

WithAudioFrames sets the number of audio frames to record.

func (*Command) WithAudioGuessLayoutMax ¶

func (c *Command) WithAudioGuessLayoutMax(max int) *Command

WithAudioGuessLayoutMax sets the maximum number of channels to try to guess the channel layout.

func (*Command) WithAudioPad ¶

func (c *Command) WithAudioPad() *Command

WithAudioPad adds "padding" audio frames.

func (*Command) WithAudioPreset ¶

func (c *Command) WithAudioPreset(preset string) *Command

WithAudioPreset sets the audio options to the indicated preset.

func (*Command) WithAudioProfile ¶

func (c *Command) WithAudioProfile(profile string) *Command

WithAudioProfile sets the audio profile.

func (*Command) WithAudioQuality ¶

func (c *Command) WithAudioQuality(quality int) *Command

WithAudioQuality sets the audio quality.

func (*Command) WithAudioRate ¶

func (c *Command) WithAudioRate(rate int) *Command

WithAudioRate sets the audio sampling rate.

func (*Command) WithAudioSampleFormat ¶

func (c *Command) WithAudioSampleFormat(format string) *Command

WithAudioSampleFormat sets the sample format.

func (*Command) WithAudioTag ¶

func (c *Command) WithAudioTag(tag string) *Command

WithAudioTag sets the audio tag.

func (*Command) WithAutoConversionFilters ¶

func (c *Command) WithAutoConversionFilters() *Command

WithAutoConversionFilters enable automatically inserting format conversion filters in all filter graphs, including those defined by -vf, -af, -filter_complex and -lavfi. If filter format negotiation requires a conversion, the initialization of the filters will fail. Conversions can still be performed by inserting the relevant conversion filter (scale, aresample) in the graph. On by default, to explicitly disable it you need to specify -noauto_conversion_filters.

func (*Command) WithBinPath ¶

func (c *Command) WithBinPath(binPath string) *Command

WithBinPath sets the path to the ffmpeg binary.

func (*Command) WithBitexact ¶

func (c *Command) WithBitexact() *Command

WithBitexact enable bitexact mode for (de)muxer and (de/en)coder

func (*Command) WithBitsPerRawSample ¶

func (c *Command) WithBitsPerRawSample(b string) *Command

WithBitsPerRawSample declare the number of bits per raw sample in the given output stream to be value. Note that this option sets the information provided to the encoder/muxer, it does not change the stream to conform to this value. Setting values that do not match the stream properties may result in encoding failures or invalid output files.

func (*Command) WithBitstreamFilters ¶

func (c *Command) WithBitstreamFilters(filters string) *Command

WithBitstreamFilters sets bitstream filters for matching streams.

func (*Command) WithBsf ¶

func (c *Command) WithBsf(b string) *Command

WithBsf set bitstream filters for matching streams. bitstream_filters is a comma-separated list of bitstream filters. Use the -bsfs option to get the list of bitstream filters.

func (*Command) WithChannel ¶

func (c *Command) WithChannel(channel string) *Command

WithChannel deprecated, use -channel

func (*Command) WithChromaIntraMatrix ¶

func (c *Command) WithChromaIntraMatrix(matrix string) *Command

WithChromaIntraMatrix specify intra matrix coeffs

func (*Command) WithCodec ¶

func (c *Command) WithCodec(codec string) *Command

WithCodec selects an encoder (when used before an output file) or a decoder (when used before an input file) for one or more streams. Codec is the name of a decoder/encoder or a special value copy (output only) to indicate that the stream is not to be re-encoded.

func (*Command) WithCopyInitialNonKeyframes ¶

func (c *Command) WithCopyInitialNonKeyframes() *Command

WithCopyInitialNonKeyframes copies non-keyframes initially.

func (*Command) WithCopyOrDiscardFramesBeforeStartTime ¶

func (c *Command) WithCopyOrDiscardFramesBeforeStartTime() *Command

WithCopyOrDiscardFramesBeforeStartTime copies or discards frames before start time.

func (*Command) WithCopyTB ¶

func (c *Command) WithCopyTB(mode string) *Command

WithCopyTB copies input stream time base when stream copying.

func (*Command) WithCopyTS ¶

func (c *Command) WithCopyTS() *Command

WithCopyTS copies timestamps.

func (*Command) WithCopyUnknown ¶

func (c *Command) WithCopyUnknown() *Command

WithCopyUnknown allow input streams with unknown type to be copied instead of failing if copying such streams is attempted.

func (*Command) WithCopytb ¶

func (c *Command) WithCopytb(m string) *Command

WithCopytb specify how to set the encoder timebase when stream copying. mode is an integer numeric value, and can assume one of the following values:

func (*Command) WithCopyts ¶

func (c *Command) WithCopyts() *Command

WithCopyts do not process input timestamps, but keep their values without trying to sanitize them. In particular, do not remove the initial start time offset value.

func (*Command) WithDC ¶

func (c *Command) WithDC(precision int) *Command

WithDC precision intra_dc_precision

func (*Command) WithDTSDeltaThreshold ¶

func (c *Command) WithDTSDeltaThreshold(threshold int) *Command

WithDTSDeltaThreshold sets the timestamp discontinuity delta threshold.

func (*Command) WithDTSErrorThreshold ¶

func (c *Command) WithDTSErrorThreshold(threshold int) *Command

WithDTSErrorThreshold sets the timestamp error delta threshold.

func (*Command) WithDataFrames ¶

func (c *Command) WithDataFrames(number int) *Command

WithDataFrames set the number of data frames to record.

func (*Command) WithDebugTS ¶

func (c *Command) WithDebugTS() *Command

WithDebugTS prints timestamp debugging info.

func (*Command) WithDeinterlace ¶

func (c *Command) WithDeinterlace() *Command

WithDeinterlace this option is deprecated, use the yadif filter instead

func (*Command) WithDisableAudio ¶

func (c *Command) WithDisableAudio() *Command

WithDisableAudio disables audio.

func (*Command) WithDisableData ¶

func (c *Command) WithDisableData() *Command

WithDisableData disable data

func (*Command) WithDisableVideo ¶

func (c *Command) WithDisableVideo() *Command

WithDisableVideo disable video

func (*Command) WithDiscard ¶

func (c *Command) WithDiscard(d string) *Command

WithDiscard allows discarding specific streams or frames from streams. Any input stream can be fully discarded, using value all whereas selective discarding of frames from a stream occurs at the demuxer and is not supported by all demuxers.

func (*Command) WithDiscardThreshold ¶

func (c *Command) WithDiscardThreshold(discard int) *Command

WithIntra deprecated use -g 1

func (*Command) WithDtsDeltaThreshold ¶

func (c *Command) WithDtsDeltaThreshold(d string) *Command

WithDtsDeltaThreshold timestamp discontinuity delta threshold, expressed as a decimal number of seconds.

func (*Command) WithDtsErrorThreshold ¶

func (c *Command) WithDtsErrorThreshold(d string) *Command

WithDtsErrorThreshold timestamp error delta threshold, expressed as a decimal number of seconds.

func (*Command) WithDump ¶

func (c *Command) WithDump() *Command

WithDump dump each input packet to stderr.

func (*Command) WithDuration ¶

func (c *Command) WithDuration(duration string) *Command

WithDuration when used as an input option (before -i), limit the duration of data read from the input file. When used as an output option (before an output url), stop writing the output after its duration reaches duration. duration must be a time duration specification, see (ffmpeg-utils)the Time duration section in the ffmpeg-utils(1) manual. -to and -t are mutually exclusive and -t has priority.

func (*Command) WithEncTimeBase ¶

func (c *Command) WithEncTimeBase(e string) *Command

WithEncTimeBase set the encoder timebase. timebase can assume one of the following values:

func (*Command) WithExtractAttachment ¶

func (c *Command) WithExtractAttachment(filename string) *Command

WithExtractAttachment extracts an attachment into a file.

func (*Command) WithFilter ¶

func (c *Command) WithFilter(filter string) *Command

WithFilter sets stream filtergraph.

func (*Command) WithFilterComplex ¶

func (c *Command) WithFilterComplex(f string) *Command

WithFilterComplex define a complex filtergraph, i.e. one with arbitrary number of inputs and/or outputs. For simple graphs – those with one input and one output of the same type – see the -filter options. filtergraph is a description of the filtergraph, as described in the “Filtergraph syntax” section of the ffmpeg-filters manual.

func (*Command) WithFilterComplexScript ¶

func (c *Command) WithFilterComplexScript(f string) *Command

WithFilterComplexScript this option is similar to -filter_complex, the only difference is that its argument is the name of the file from which a complex filtergraph description is to be read.

func (*Command) WithFilterComplexThreads ¶

func (c *Command) WithFilterComplexThreads(f string) *Command

WithFilterComplexThreads defines how many threads are used to process a filter_complex graph. Similar to filter_threads but used for -filter_complex graphs only. The default is the number of available CPUs.

func (*Command) WithFilterScript ¶

func (c *Command) WithFilterScript(filename string) *Command

WithFilterScript sets read stream filtergraph description from a file.

func (*Command) WithFilterThreads ¶

func (c *Command) WithFilterThreads(threads int) *Command

WithFilterThreads sets the number of non-complex filter threads.

func (*Command) WithFixedQualityScale ¶

func (c *Command) WithFixedQualityScale(q int) *Command

WithFixedQualityScale sets fixed quality scale (VBR).

func (*Command) WithForceCodecTag ¶

func (c *Command) WithForceCodecTag(tag string) *Command

WithForceCodecTag forces codec tag/fourcc.

func (*Command) WithForceDataCodec ¶

func (c *Command) WithForceDataCodec(codec string) *Command

WithForceDataCodec forces data codec (‘copy’ to copy stream).

func (*Command) WithForceFPS ¶

func (c *Command) WithForceFPS() *Command

WithForceFPS force the selected framerate, disable the best supported framerate selection

func (*Command) WithForceKeyFrames ¶

func (c *Command) WithForceKeyFrames(timestamps string) *Command

WithForceKeyFrames force key frames at specified timestamps

func (*Command) WithFpsMode ¶

func (c *Command) WithFpsMode(v string) *Command

WithFpsMode set video sync method.

func (*Command) WithFrameDropThreshold ¶

func (c *Command) WithFrameDropThreshold(f string) *Command

WithFrameDropThreshold set frame drop threshold, which specifies how much behind video frames can be before they are dropped. In frame rate units, so 1.0 is one frame. The default is -1.1. One possible usecase is to avoid framedrops in case of noisy timestamps or to increase frame drop precision in case of exact timestamps.

func (*Command) WithFrameRate ¶

func (c *Command) WithFrameRate(rate string) *Command

WithFrameRate set frame rate (Hz value, fraction or abbreviation)

func (*Command) WithFrameSize ¶

func (c *Command) WithFrameSize(size string) *Command

WithFrameSize set frame size (WxH or abbreviation)

func (*Command) WithFrames ¶

func (c *Command) WithFrames(number int) *Command

WithFrames sets the number of frames to record.

func (*Command) WithHLSKeyInfoPath ¶

func (c *Command) WithHLSKeyInfoPath(path string) *Command

func (*Command) WithHLSSegmentFilename ¶

func (c *Command) WithHLSSegmentFilename(filename string) *Command

func (*Command) WithHLSSegmentListSize ¶

func (c *Command) WithHLSSegmentListSize(size int) *Command

func (*Command) WithHLSSegmentListType ¶

func (c *Command) WithHLSSegmentListType(typ string) *Command

func (*Command) WithHLSSegmentStartNumber ¶

func (c *Command) WithHLSSegmentStartNumber(number int) *Command

func (*Command) WithHLSSegmentTime ¶

func (c *Command) WithHLSSegmentTime(seconds int) *Command

func (*Command) WithHWAccel ¶

func (c *Command) WithHWAccel(name string) *Command

WithHWAccel use HW accelerated decoding

func (*Command) WithHWAccelDevice ¶

func (c *Command) WithHWAccelDevice(device string) *Command

WithHWAccelDevice select a device for HW accelerationdevicename

func (*Command) WithHex ¶

func (c *Command) WithHex() *Command

WithHex when dumping packets, also dump the payload.

func (*Command) WithISync ¶

func (c *Command) WithISync() *Command

WithISync assigns an input as a sync source.

func (*Command) WithIgnoreUnknown ¶

func (c *Command) WithIgnoreUnknown() *Command

WithIgnoreUnknown ignore input streams with unknown type instead of failing if copying such streams is attempted.

func (*Command) WithInitialDemuxDecodeDelay ¶

func (c *Command) WithInitialDemuxDecodeDelay(seconds int) *Command

WithInitialDemuxDecodeDelay sets initial demux-decode delay.

func (*Command) WithInputPath ¶

func (c *Command) WithInputPath(path string) *Command

WithInputPath sets the input path to the given path.

func (*Command) WithInputPipe ¶

func (c *Command) WithInputPipe(r io.Reader) *Command

WithInputPipe sets the input pipe reader (stdin).

func (*Command) WithInputTsOffset ¶

func (c *Command) WithInputTsOffset(offset string) *Command

WithInputTsOffset set the input ts offset.

func (*Command) WithInputTsScale ¶

func (c *Command) WithInputTsScale(scale string) *Command

WithInputTsScale set the input ts scale.

func (*Command) WithInterMatrix ¶

func (c *Command) WithInterMatrix(matrix string) *Command

WithInterMatrix specify inter matrix coeffs

func (*Command) WithIntraMatrix ¶

func (c *Command) WithIntraMatrix(matrix string) *Command

WithIntraMatrix specify intra matrix coeffs

func (*Command) WithLavfi ¶

func (c *Command) WithLavfi(l string) *Command

WithLavfi define a complex filtergraph, i.e. one with arbitrary number of inputs and/or outputs. Equivalent to -filter_complex.

func (*Command) WithLimitFileSize ¶

func (c *Command) WithLimitFileSize(size int) *Command

WithOutputLimitFileSize sets the file size limit, expressed in bytes. No further chunk of bytes is written after the limit is exceeded. The size of the output file is slightly more than the requested file size.

func (*Command) WithMap ¶

func (c *Command) WithMap(m string) *Command

WithMap creates one or more streams in the output file. This option has two forms for specifying the data source(s): the first selects one or more streams from some input file (specified with -i), the second takes an output from some complex filtergraph (specified with -filter_complex or -filter_complex_script).

func (*Command) WithMapChannel ¶

func (c *Command) WithMapChannel(m string) *Command

WithMapChannel creates an audio channel from a given input to an output. If output_file_id.stream_specifier is not set, the audio channel will be mapped on all the audio streams.

func (*Command) WithMapChapters ¶

func (c *Command) WithMapChapters(m string) *Command

WithMapChapters copy chapters from input file with index input_file_index to the next output file. If no chapter mapping is specified, then chapters are copied from the first input file with at least one chapter. Use a negative file index to disable any chapter copying.

func (*Command) WithMapMetadata ¶

func (c *Command) WithMapMetadata(m string) *Command

WithMapMetadata sets metadata information of the next output file from infile. Note that those are file indices (zero-based), not filenames. Optional metadata_spec_in/out parameters specify, which metadata to copy. A metadata specifier can have the following forms:

func (*Command) WithMaxAlloc ¶

func (c *Command) WithMaxAlloc(bytes int) *Command

WithMaxAlloc sets the maximum size of a single allocated block.

func (*Command) WithMaxBitrate ¶

func (c *Command) WithMaxBitrate(bitrate int) *Command

WithMaxBitrate sets the max bitrate in kbit/s.

func (*Command) WithMaxErrorRate ¶

func (c *Command) WithMaxErrorRate(m string) *Command

WithMaxErrorRate set fraction of decoding frame failures across all inputs which when crossed ffmpeg will return exit code 69. Crossing this threshold does not terminate processing. Range is a floating-point number between 0 to 1. Default is 2/3.

func (*Command) WithMaxMuxingQueueSize ¶

func (c *Command) WithMaxMuxingQueueSize(m string) *Command

WithMaxMuxingQueueSize when transcoding audio and/or video streams, ffmpeg will not begin writing into the output until it has one packet for each such stream. While waiting for that to happen, packets for other streams are buffered. This option sets the size of this buffer, in packets, for the matching output stream.

func (*Command) WithMaximumDemuxDecodeDelay ¶

func (c *Command) WithMaximumDemuxDecodeDelay(seconds int) *Command

WithMaximumDemuxDecodeDelay sets maximum demux-decode delay.

func (*Command) WithMetadata ¶

func (c *Command) WithMetadata(metadata string) *Command

WithMetadata sets metadata information to the output file.

func (*Command) WithMuxdelay ¶

func (c *Command) WithMuxdelay(m string) *Command

WithMuxdelay set the maximum demux-decode delay.

func (*Command) WithMuxingQueueDataThreshold ¶

func (c *Command) WithMuxingQueueDataThreshold(m string) *Command

WithMuxingQueueDataThreshold this is a minimum threshold until which the muxing queue size is not taken into account. Defaults to 50 megabytes per stream, and is based on the overall size of packets passed to the muxer.

func (*Command) WithMuxpreload ¶

func (c *Command) WithMuxpreload(m string) *Command

WithMuxpreload set the initial demux-decode delay.

func (*Command) WithOutputFormat ¶

func (c *Command) WithOutputFormat(format string) *Command

WithOutputFormat sets the output format to the given format.

func (*Command) WithOutputPath ¶

func (c *Command) WithOutputPath(path string) *Command

WithInputFormat sets the input format to the given format.

func (*Command) WithOutputPipe ¶

func (c *Command) WithOutputPipe(w io.Writer) *Command

WithOutputPipe sets the output pipe writer to the given writer (stdout)

func (*Command) WithPSNR ¶

func (c *Command) WithPSNR() *Command

WithPSNR calculate PSNR of compressed frames

func (*Command) WithPass ¶

func (c *Command) WithPass(pass int) *Command

WithPass select the pass number (1 to 3)

func (*Command) WithPassLogFile ¶

func (c *Command) WithPassLogFile(prefix string) *Command

WithPassLogFile select two pass log file name prefix

func (*Command) WithPixelFormat ¶

func (c *Command) WithPixelFormat(format string) *Command

WithPixelFormat set pixel format

func (*Command) WithPreset ¶

func (c *Command) WithPreset(preset string) *Command

WithPreset sets the preset for matching stream(s).

func (*Command) WithPresetFile ¶

func (c *Command) WithPresetFile(filename string) *Command

WithPresetFile sets the preset file for matching stream(s).

func (*Command) WithQPHist ¶

func (c *Command) WithQPHist() *Command

WithQPHist show QP histogram

func (*Command) WithRateControlOverride ¶

func (c *Command) WithRateControlOverride(override string) *Command

WithRateControlOverride override rate control override for specific intervals

func (*Command) WithReadInputAtNativeFrameRate ¶

func (c *Command) WithReadInputAtNativeFrameRate() *Command

WithReadInputAtNativeFrameRate reads input at native frame rate.

func (*Command) WithRecastMedia ¶

func (c *Command) WithRecastMedia() *Command

WithRecastMedia forces a decoder of a different media type than the one detected or designated by the demuxer. Useful for decoding media data muxed as data streams.

func (*Command) WithReinitFilter ¶

func (c *Command) WithReinitFilter() *Command

WithReinitFilter reinit filtergraph on input parameter changes.

func (*Command) WithReport ¶

func (c *Command) WithReport() *Command

WithReport enables the ffmpeg report.

func (*Command) WithSdpFile ¶

func (c *Command) WithSdpFile(s string) *Command

WithSdpFile print sdp information for an output stream to file. This allows dumping sdp information when at least one output isn’t an rtp stream. (Requires at least one of the output formats to be rtp).

func (*Command) WithSeekTimestamp ¶

func (c *Command) WithSeekTimestamp() *Command

WithSeekTimestamp this option enables or disables seeking by timestamp in input files with the -ss option. It is disabled by default. If enabled, the argument to the -ss option is considered an actual timestamp, and is not offset by the start time of the file. This matters only for files which do not start from timestamp 0, such as transport streams.

func (*Command) WithShortest ¶

func (c *Command) WithShortest() *Command

WithShortest finish encoding when the shortest output stream ends.

func (*Command) WithShortestBufDuration ¶

func (c *Command) WithShortestBufDuration(s string) *Command

WithShortestBufDuration the -shortest option may require buffering potentially large amounts of data when at least one of the streams is "sparse" (i.e. has large gaps between frames – this is typically the case for subtitles).

func (*Command) WithStartAtZero ¶

func (c *Command) WithStartAtZero() *Command

WithStartAtZero when used with copyts, shift input timestamps so they start at zero.

func (*Command) WithStartTimeOffset ¶

func (c *Command) WithStartTimeOffset(offset string) *Command

WithStartTimeOffset when used as an input option (before -i), seeks in this input file to position. Note that in most formats it is not possible to seek exactly, so ffmpeg will seek to the closest seek point before position. When transcoding and -accurate_seek is enabled (the default), this extra segment between the seek point and position will be decoded and discarded. When doing stream copy or when -noaccurate_seek is used, it will be preserved. When used as an output option (before an output url), decodes but discards input until the timestamps reach position.

func (*Command) WithStatsEncPost ¶

func (c *Command) WithStatsEncPost(s string) *Command

WithStatsEncPost write per-frame encoding information about the matching streams into the file given by path.

func (*Command) WithStatsEncPostFmt ¶

func (c *Command) WithStatsEncPostFmt(s string) *Command

WithStatsEncPostFmt specify the format for the lines written with -stats_enc_pre / -stats_enc_post / -stats_mux_pre.

func (*Command) WithStatsEncPre ¶

func (c *Command) WithStatsEncPre(s string) *Command

WithStatsEncPre write per-frame encoding information about the matching streams into the file given by path.

func (*Command) WithStatsEncPreFmt ¶

func (c *Command) WithStatsEncPreFmt(s string) *Command

WithStatsEncPreFmt specify the format for the lines written with -stats_enc_pre / -stats_enc_post / -stats_mux_pre.

func (*Command) WithStatsMuxPre ¶

func (c *Command) WithStatsMuxPre(s string) *Command

WithStatsMuxPre write per-frame encoding information about the matching streams into the file given by path.

func (*Command) WithStatsMuxPreFmt ¶

func (c *Command) WithStatsMuxPreFmt(s string) *Command

WithStatsMuxPreFmt specify the format for the lines written with -stats_enc_pre / -stats_enc_post / -stats_mux_pre.

func (*Command) WithStopTime ¶

func (c *Command) WithStopTime(time string) *Command

WithStopTime stop writing the output or reading the input at position. position must be a time duration specification.

func (*Command) WithStreamID ¶

func (c *Command) WithStreamID(s string) *Command

WithStreamID assign a new stream-id value to an output stream. This option should be specified prior to the output filename to which it applies. For the situation where multiple output files exist, a streamid may be reassigned to a different value.

func (*Command) WithStreamLoop ¶

func (c *Command) WithStreamLoop(number int) *Command

WithStreamLoop sets number of times input stream shall be looped. Loop 0 means no loop, loop -1 means infinite loop.

func (*Command) WithTVStandard ¶

func (c *Command) WithTVStandard(standard string) *Command

WithTVStandard deprecated, use -standard

func (*Command) WithTag ¶

func (c *Command) WithTag(t string) *Command

WithTag force a tag/fourcc for matching streams.

func (*Command) WithTarget ¶

func (c *Command) WithTarget(typ string) *Command

WithTarget sets the target file type.

func (*Command) WithThreadQueueSize ¶

func (c *Command) WithThreadQueueSize(t string) *Command

WithThreadQueueSize for input, this option sets the maximum number of queued packets when reading from the file or device. With low latency / high rate live streams, packets may be discarded if they are not read in a timely manner; setting this value can force ffmpeg to use a separate input thread and read packets as soon as they arrive. By default ffmpeg only does this if multiple inputs are specified.

func (*Command) WithTimeCode ¶

func (c *Command) WithTimeCode(timecode string) *Command

WithTimeCode set initial TimeCode value.

func (*Command) WithTimeLimit ¶

func (c *Command) WithTimeLimit(seconds int) *Command

WithTimeLimit sets the max runtime in seconds.

func (*Command) WithTimecode ¶

func (c *Command) WithTimecode(t string) *Command

WithTimecode specify Timecode for writing. SEP is ’:’ for non drop timecode and ’;’ (or ’.’) for drop.

func (*Command) WithTimelimit ¶

func (c *Command) WithTimelimit(t string) *Command

WithTimelimit exit after ffmpeg has been running for duration seconds in CPU user time.

func (*Command) WithTimestamp ¶

func (c *Command) WithTimestamp(timestamp string) *Command

WithTimestamp sets the recording timestamp in the container.

func (*Command) WithTop ¶

func (c *Command) WithTop(top int) *Command

WithTop top=1/bottom=0/auto=-1 field first

func (*Command) WithVStatsFile ¶

func (c *Command) WithVStatsFile(file string) *Command

WithVStatsFile dumps video coding statistics to file.

func (*Command) WithVideoBitrate ¶

func (c *Command) WithVideoBitrate(bitrate string) *Command

WithVideoBitrate set video bitrate (please use -b:v)

func (*Command) WithVideoBitstreamFilters ¶

func (c *Command) WithVideoBitstreamFilters(filters string) *Command

WithVideoBitstreamFilters deprecated

func (*Command) WithVideoCodec ¶

func (c *Command) WithVideoCodec(codec string) *Command

WithVideoCodec force video codec (‘copy’ to copy stream)

func (*Command) WithVideoFilters ¶

func (c *Command) WithVideoFilters(filters string) *Command

WithVideoFilters set video filters

func (*Command) WithVideoFrames ¶

func (c *Command) WithVideoFrames(frames int) *Command

WithVideoFrames set the number of video frames to record

func (*Command) WithVideoPreset ¶

func (c *Command) WithVideoPreset(preset string) *Command

WithVideoPreset set the video options to the indicated preset

func (*Command) WithVideoProfile ¶

func (c *Command) WithVideoProfile(profile string) *Command

func (*Command) WithVideoStats ¶

func (c *Command) WithVideoStats() *Command

WithVideoStats dump video coding statistics to file

func (*Command) WithVideoStatsFile ¶

func (c *Command) WithVideoStatsFile(file string) *Command

WithVideoStatsFile dump video coding statistics to file

func (*Command) WithVideoSync ¶

func (c *Command) WithVideoSync(v string) *Command

WithVideoSync set video sync method.

func (*Command) WithVideoTag ¶

func (c *Command) WithVideoTag(tag string) *Command

WithVideoTag force video tag/fourcc

func (*Command) WithVolume ¶

func (c *Command) WithVolume(volume int) *Command

WithVolume sets the audio volume.

func (*Command) WithXError ¶

func (c *Command) WithXError() *Command

WithXError exits on error.