ffmpeg

package
v0.0.9 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jul 22, 2020 License: MIT Imports: 11 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	QUIET   = int(C.AV_LOG_QUIET)
	PANIC   = int(C.AV_LOG_PANIC)
	FATAL   = int(C.AV_LOG_FATAL)
	ERROR   = int(C.AV_LOG_ERROR)
	WARNING = int(C.AV_LOG_WARNING)
	INFO    = int(C.AV_LOG_INFO)
	VERBOSE = int(C.AV_LOG_VERBOSE)
	DEBUG   = int(C.AV_LOG_DEBUG)
	TRACE   = int(C.AV_LOG_TRACE)
)

Variables

This section is empty.

Functions

func AudioCodecHandler 

func AudioCodecHandler(h *avutil.RegisterHandler)

func HasDecoder 

func HasDecoder(name string) bool

func HasEncoder 

func HasEncoder(name string) bool

func PixelFormatAV2FF 

func PixelFormatAV2FF(pixelFormat av.PixelFormat) (ffpixelfmt int32)

func PixelFormatFF2AV 

func PixelFormatFF2AV(ffpixelfmt int32) (pixelFormat av.PixelFormat)

func SetLogLevel 

func SetLogLevel(level int)

Types

type AudioDecoder 

type AudioDecoder struct {
	ChannelLayout av.ChannelLayout
	SampleFormat  av.SampleFormat
	SampleRate    int
	Extradata     []byte
	// contains filtered or unexported fields
}

func NewAudioDecoder 

func NewAudioDecoder(codec av.AudioCodecData) (dec *AudioDecoder, err error)

func (*AudioDecoder) Close 

func (self *AudioDecoder) Close()

func (*AudioDecoder) Decode 

func (self *AudioDecoder) Decode(pkt []byte) (gotframe bool, frame av.AudioFrame, err error)

func (*AudioDecoder) Setup 

func (self *AudioDecoder) Setup() (err error)

type AudioEncoder 

type AudioEncoder struct {
	SampleRate       int
	Bitrate          int
	ChannelLayout    av.ChannelLayout
	SampleFormat     av.SampleFormat
	FrameSampleCount int
	// contains filtered or unexported fields
}

func NewAudioEncoderByCodecType 

func NewAudioEncoderByCodecType(typ av.CodecType) (enc *AudioEncoder, err error)

func NewAudioEncoderByName 

func NewAudioEncoderByName(name string) (enc *AudioEncoder, err error)

func (*AudioEncoder) Close 

func (self *AudioEncoder) Close()

func (*AudioEncoder) CodecData 

func (self *AudioEncoder) CodecData() (codec av.AudioCodecData, err error)

func (*AudioEncoder) Encode 

func (self *AudioEncoder) Encode(frame av.AudioFrame) (pkts [][]byte, err error)

func (*AudioEncoder) GetOption 

func (self *AudioEncoder) GetOption(key string, val interface{}) (err error)

func (*AudioEncoder) SetBitrate 

func (self *AudioEncoder) SetBitrate(bitrate int) (err error)

func (*AudioEncoder) SetChannelLayout 

func (self *AudioEncoder) SetChannelLayout(ch av.ChannelLayout) (err error)

func (*AudioEncoder) SetOption 

func (self *AudioEncoder) SetOption(key string, val interface{}) (err error)

func (*AudioEncoder) SetSampleFormat 

func (self *AudioEncoder) SetSampleFormat(fmt av.SampleFormat) (err error)

func (*AudioEncoder) SetSampleRate 

func (self *AudioEncoder) SetSampleRate(rate int) (err error)

func (*AudioEncoder) Setup 

func (self *AudioEncoder) Setup() (err error)

type FramerateConverter added in v0.0.2 

type FramerateConverter struct {
	OutPixelFormat av.PixelFormat
	OutWidth       int
	OutHeight      int
	OutFpsNum      int
	OutFpsDen      int
	// contains filtered or unexported fields
}

FramerateConverter allows increasing or decreasing the video framerate using libavfilter's processing filters

func (*FramerateConverter) AddFilter added in v0.0.2 

func (self *FramerateConverter) AddFilter(prevFilter *C.AVFilterContext, nextFilter *C.AVFilterContext, name string, arg string) (err error)

AddFilter creates a filter and adds it in the filtergraph, between prevFilter and nextFilter

func (*FramerateConverter) Close added in v0.0.2 

func (self *FramerateConverter) Close()

Close frees the allocated filter graph

func (*FramerateConverter) ConfigureVideoFilters added in v0.0.2 

func (self *FramerateConverter) ConfigureVideoFilters() (err error)

ConfigureVideoFilters creates the filtergraph: BufferSrc => FpsConv => BufferSink

func (*FramerateConverter) ConvertFramerate added in v0.0.2 

func (self *FramerateConverter) ConvertFramerate(in *VideoFrame) (out []*VideoFrame, err error)

ConvertFramerate pushes a frame in the filtergraph and receives 0, 1 or more frames with converted framerate

func (*FramerateConverter) CreateFilter added in v0.0.2 

func (self *FramerateConverter) CreateFilter(filterPtr **C.AVFilterContext, filterType string, filterName string, filterArgs string) int

CreateFilter fills filterPtr according to the given filterType

func (*FramerateConverter) FreeFirstOutputImage added in v0.0.4 

func (self *FramerateConverter) FreeFirstOutputImage()

FreeFirstOutputImage frees the allocated image at the start of the queue "outputFrames"

func (*FramerateConverter) FreeOutputImages added in v0.0.4 

func (self *FramerateConverter) FreeOutputImages()

FreeOutputImages frees all allocated images stored in outputFrames

type Resampler 

type Resampler struct {
	OutSampleFormat  av.SampleFormat
	OutChannelLayout av.ChannelLayout
	OutSampleRate    int
	// contains filtered or unexported fields
}

func (*Resampler) Close 

func (self *Resampler) Close()

func (*Resampler) Resample 

func (self *Resampler) Resample(in av.AudioFrame) (out av.AudioFrame, err error)

type VideoDecoder 

type VideoDecoder struct {
	Extradata []byte
	// contains filtered or unexported fields
}

func NewVideoDecoder 

func NewVideoDecoder(stream av.CodecData) (dec *VideoDecoder, err error)

func (*VideoDecoder) Close 

func (dec *VideoDecoder) Close()

func (*VideoDecoder) Decode 

func (self *VideoDecoder) Decode(pkt []byte) (img *VideoFrame, err error)

func (VideoDecoder) GetFramerate 

func (dec VideoDecoder) GetFramerate() (num, den int)

func (*VideoDecoder) Setup 

func (self *VideoDecoder) Setup() (err error)

type VideoEncoder 

type VideoEncoder struct {
	Bitrate int
	// contains filtered or unexported fields
}

VideoEncoder contains all params that must be set by user to initialize the video encoder

func NewVideoEncoderByCodecType 

func NewVideoEncoderByCodecType(typ av.CodecType) (enc *VideoEncoder, err error)

func NewVideoEncoderByName 

func NewVideoEncoderByName(name string) (enc *VideoEncoder, err error)

func (*VideoEncoder) Close 

func (enc *VideoEncoder) Close()

func (*VideoEncoder) CodecData 

func (enc *VideoEncoder) CodecData() (codec av.VideoCodecData, err error)

CodecData returns the video codec data of the encoder

func (*VideoEncoder) Encode 

func (enc *VideoEncoder) Encode(img *VideoFrame) (pkts []av.Packet, err error)

func (*VideoEncoder) GetOption 

func (enc *VideoEncoder) GetOption(key string, val interface{}) (err error)

func (*VideoEncoder) SetBitrate 

func (enc *VideoEncoder) SetBitrate(bitrate int) (err error)

func (*VideoEncoder) SetFramerate 

func (enc *VideoEncoder) SetFramerate(num, den int) (err error)

func (*VideoEncoder) SetGopSize 

func (enc *VideoEncoder) SetGopSize(gopSize int) (err error)

func (*VideoEncoder) SetOption 

func (enc *VideoEncoder) SetOption(key string, val interface{}) (err error)

func (*VideoEncoder) SetPixelFormat 

func (enc *VideoEncoder) SetPixelFormat(fmt av.PixelFormat) (err error)

func (*VideoEncoder) SetResolution 

func (enc *VideoEncoder) SetResolution(w, h int) (err error)

func (*VideoEncoder) Setup 

func (enc *VideoEncoder) Setup() (err error)

Setup initializes the encoder context and checks user params

type VideoFrame 

type VideoFrame struct {
	Image image.YCbCr

	Framerate VideoFramerate
	// contains filtered or unexported fields
}

func (*VideoFrame) Free 

func (self *VideoFrame) Free()

func (VideoFrame) GetDataPtr 

func (v VideoFrame) GetDataPtr() (y, cb, cr *[]uint8)

func (VideoFrame) GetFramerate added in v0.0.2 

func (v VideoFrame) GetFramerate() (num, den int)

GetFramerate returns the framerate as a fraction (numerator and denominator)

func (VideoFrame) GetPictureType added in v0.0.8 

func (v VideoFrame) GetPictureType() (picType h264parser.SliceType, err error)

GetPictureType returns the encoded picture type

func (VideoFrame) GetPixelFormat 

func (v VideoFrame) GetPixelFormat() av.PixelFormat

func (VideoFrame) GetResolution 

func (v VideoFrame) GetResolution() (w, h int)

func (VideoFrame) GetScanningMode 

func (v VideoFrame) GetScanningMode() (mode av.ScanningMode)

func (VideoFrame) GetStride 

func (v VideoFrame) GetStride() (yStride, cStride int)

func (VideoFrame) Height 

func (v VideoFrame) Height() int

func (*VideoFrame) SetFramerate added in v0.0.2 

func (v *VideoFrame) SetFramerate(num, den int)

SetFramerate sets the frame's FPS numerator and denominator

func (*VideoFrame) SetPixelFormat 

func (v *VideoFrame) SetPixelFormat(format av.PixelFormat)

func (*VideoFrame) SetResolution 

func (v *VideoFrame) SetResolution(w, h int)

func (*VideoFrame) SetStride 

func (v *VideoFrame) SetStride(yStride, cStride int)

func (VideoFrame) Width 

func (v VideoFrame) Width() int

type VideoFramerate added in v0.0.2 

type VideoFramerate struct {
	Num int
	Den int
}

VideoFramerate represents a FPS value with a fraction (numerator + denominator)

type VideoScaler 

type VideoScaler struct {
	OutPixelFormat av.PixelFormat
	OutWidth       int
	OutHeight      int
	OutYStride     int
	OutCStride     int
	// contains filtered or unexported fields
}

func (*VideoScaler) Close 

func (self *VideoScaler) Close()

func (*VideoScaler) FreeOutputImage 

func (self *VideoScaler) FreeOutputImage()

func (*VideoScaler) VideoScale 

func (self *VideoScaler) VideoScale(src *VideoFrame) (dst *VideoFrame, err error)

Source Files

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