Class for extracting frames from video files using FFMpeg, analog to class DShowVideo. More...

#include <VideoSource/VideoSource_FFMPEGVideo.hh>

Collaboration diagram for BIAS::VideoSource_FFMPEGVideo:

Public Member Functions
void	Close ()
	Close file and free buffers. More...

unsigned int	CountVideoStreams ()
	Return number of video streams. More...

std::string	ErrMsg ()
	Returns last error message. More...

unsigned int	GetCurrentDTS () const
	Returns the current decoding timestamp. More...

bool	GetFrame (BIAS::ImageBase &img)
	Retreive the next frame from the video. More...

unsigned int	GetLength () const
	Returns the length of the video in TimeBase units. More...

int	Height ()
	Return height of selected video stream. More...

bool	Init (int width=0, int height=0, PixelFormat pixFmt=PIX_FMT_RGB24, unsigned int streamIndex=0)
	Select video stream, initialize stuff and set destination size and pixel format. More...

bool	Open (const char *file)
	Open file and retreive info. More...

void	Seek (int64_t time)
	Seeks to `time` which is given in TimeBase units. More...

AVRational	TimeBase ()
	Returns the TimeBase of the video stream. More...

	VideoSource_FFMPEGVideo ()

int	Width ()
	Return width of selected video stream. More...

	~VideoSource_FFMPEGVideo ()

Static Public Member Functions
static PixelFormat	Colormodel2PixFmt (ImageBase::EColorModel cm)
	Maps BIAS colormodels to ffmpeg pixelformats. More...

Protected Attributes
uint8_t *	_buffer

AVCodec *	_codec

AVCodecContext *	_codecCtx

std::string	_errMsg

AVFormatContext *	_fmtCtx

AVFrame *	_frame

AVFrame *	_frameRGB

unsigned int	_streamIndex

SwsContext *	_swsCtx

int	_vidStr

std::vector< int >	_vidStreams

Detailed Description

Class for extracting frames from video files using FFMpeg, analog to class DShowVideo.

Test:: tested with TestVideoSource_FFMPEGVideo.cpp

Author: Max hollmann

Deprecated:: replaced by VideoSource_FFmpeg, to be removed (ischiller)

Definition at line 48 of file VideoSource_FFMPEGVideo.hh.

Constructor & Destructor Documentation

BIAS::VideoSource_FFMPEGVideo::VideoSource_FFMPEGVideo ( )

Definition at line 30 of file VideoSource_FFMPEGVideo.cpp.

BIAS::VideoSource_FFMPEGVideo::~VideoSource_FFMPEGVideo ( )

Definition at line 48 of file VideoSource_FFMPEGVideo.cpp.

Member Function Documentation

void BIAS::VideoSource_FFMPEGVideo::Close ( )

Close file and free buffers.

Definition at line 142 of file VideoSource_FFMPEGVideo.cpp.

PixelFormat BIAS::VideoSource_FFMPEGVideo::Colormodel2PixFmt ( ImageBase::EColorModel cm )

static

Maps BIAS colormodels to ffmpeg pixelformats.

Supported so far:

CM_RGB
CM_BGR
CM_GRAY

Definition at line 239 of file VideoSource_FFMPEGVideo.cpp.

References BIAS::ImageBase::CM_BGR, BIAS::ImageBase::CM_Grey, and BIAS::ImageBase::CM_RGB.

unsigned int BIAS::VideoSource_FFMPEGVideo::CountVideoStreams ( )

Return number of video streams.

Definition at line 163 of file VideoSource_FFMPEGVideo.cpp.

string BIAS::VideoSource_FFMPEGVideo::ErrMsg ( )

Returns last error message.

Definition at line 233 of file VideoSource_FFMPEGVideo.cpp.

unsigned int BIAS::VideoSource_FFMPEGVideo::GetCurrentDTS ( ) const

Returns the current decoding timestamp.

Definition at line 221 of file VideoSource_FFMPEGVideo.cpp.

bool BIAS::VideoSource_FFMPEGVideo::GetFrame ( BIAS::ImageBase & img )

Retreive the next frame from the video.

Definition at line 186 of file VideoSource_FFMPEGVideo.cpp.

References BIAS::ImageBase::GetImageData().

unsigned int BIAS::VideoSource_FFMPEGVideo::GetLength ( ) const

Returns the length of the video in TimeBase units.

Definition at line 226 of file VideoSource_FFMPEGVideo.cpp.

int BIAS::VideoSource_FFMPEGVideo::Height ( )

Return height of selected video stream.

Definition at line 177 of file VideoSource_FFMPEGVideo.cpp.

bool BIAS::VideoSource_FFMPEGVideo::Init	(	int	width = `0`,
		int	height = `0`,
		PixelFormat	pixFmt = `PIX_FMT_RGB24`,
		unsigned int	streamIndex = `0`
	)

Select video stream, initialize stuff and set destination size and pixel format.

Only call after successfully calling Open(). If width and height both are zero, the video is not resized. If either is zero, the other is calculated to maintain the aspect ratio.

Definition at line 83 of file VideoSource_FFMPEGVideo.cpp.

bool BIAS::VideoSource_FFMPEGVideo::Open ( const char * file )

Open file and retreive info.

Definition at line 52 of file VideoSource_FFMPEGVideo.cpp.

void BIAS::VideoSource_FFMPEGVideo::Seek ( int64_t time )

Seeks to time which is given in TimeBase units.

Definition at line 211 of file VideoSource_FFMPEGVideo.cpp.

AVRational BIAS::VideoSource_FFMPEGVideo::TimeBase ( )

Returns the TimeBase of the video stream.

Definition at line 216 of file VideoSource_FFMPEGVideo.cpp.

int BIAS::VideoSource_FFMPEGVideo::Width ( )

Return width of selected video stream.