ffmpeg

package
v0.0.0-...-837e36f Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Dec 9, 2024 License: MIT Imports: 7 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 FreeVideoFrame 

func FreeVideoFrame(self *VideoFrame)

func HasDecoder 

func HasDecoder(name string) bool

func HasEncoder 

func HasEncoder(name string) bool

func NewVideoDecoder 

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

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 FramerateConverter 

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 

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 

func (self *FramerateConverter) Close()

Close frees the allocated filter graph

func (*FramerateConverter) ConfigureVideoFilters 

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

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

func (*FramerateConverter) ConvertFramerate 

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 

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

CreateFilter fills filterPtr according to the given filterType

type VideoDecoder 

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

func (*VideoDecoder) Close 

func (dec *VideoDecoder) Close()

func (*VideoDecoder) Decode 

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

func (*VideoDecoder) DecodeSingle 

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

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) GetGopSize 

func (enc *VideoEncoder) GetGopSize() int

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
	// 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) GetPictureType 

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) 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 

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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