decoding_encoding.c File Reference

libavcodec API use example. More...

#include <math.h>
#include <libavutil/opt.h>
#include <libavcodec/avcodec.h>
#include <libavutil/channel_layout.h>
#include <libavutil/common.h>
#include <libavutil/imgutils.h>
#include <libavutil/mathematics.h>
#include <libavutil/samplefmt.h>

Go to the source code of this file.

Macros
#define	INBUF_SIZE   4096
#define	AUDIO_INBUF_SIZE   20480
#define	AUDIO_REFILL_THRESH   4096

Functions
static int	check_sample_fmt (AVCodec *codec, enum AVSampleFormat sample_fmt)
static int	select_sample_rate (AVCodec *codec)
static int	select_channel_layout (AVCodec *codec)
static void	audio_encode_example (const char *filename)
static void	audio_decode_example (const char *outfilename, const char *filename)
static void	video_encode_example (const char *filename, int codec_id)
static void	pgm_save (unsigned char *buf, int wrap, int xsize, int ysize, char *filename)
static int	decode_write_frame (const char *outfilename, AVCodecContext *avctx, AVFrame *frame, int *frame_count, AVPacket *pkt, int last)
static void	video_decode_example (const char *outfilename, const char *filename)
int	main (int argc, char **argv)

Detailed Description

libavcodec API use example.

Note that libavcodec only handles codecs (mpeg, mpeg4, etc...), not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the format handling

Definition in file decoding_encoding.c.

Macro Definition Documentation

#define INBUF_SIZE   4096

Examples:

doc/examples/decoding_encoding.c.

Definition at line 43 of file decoding_encoding.c.

Referenced by video_decode_example().

#define AUDIO_INBUF_SIZE   20480

Examples:

doc/examples/decoding_encoding.c.

Definition at line 44 of file decoding_encoding.c.

Referenced by audio_decode_example().

#define AUDIO_REFILL_THRESH   4096

Examples:

doc/examples/decoding_encoding.c.

Definition at line 45 of file decoding_encoding.c.

Referenced by audio_decode_example().

Function Documentation

static int check_sample_fmt ( AVCodec *  codec, enum AVSampleFormat  sample_fmt  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 48 of file decoding_encoding.c.

Referenced by audio_encode_example().

static int select_sample_rate ( AVCodec *  codec )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 61 of file decoding_encoding.c.

Referenced by audio_encode_example().

static int select_channel_layout ( AVCodec *  codec )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 78 of file decoding_encoding.c.

Referenced by audio_encode_example().

static void audio_encode_example ( const char *  filename )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 103 of file decoding_encoding.c.

Referenced by main().

static void audio_decode_example ( const char *  outfilename, const char *  filename  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 238 of file decoding_encoding.c.

Referenced by main().

static void video_encode_example ( const char *  filename, int  codec_id  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 338 of file decoding_encoding.c.

Referenced by main().

static void pgm_save ( unsigned char *  buf, int  wrap, int  xsize, int  ysize, char *  filename  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 478 of file decoding_encoding.c.

Referenced by decode_write_frame().

static int decode_write_frame ( const char *  outfilename, AVCodecContext *  avctx, AVFrame *  frame, int *  frame_count, AVPacket *  pkt, int  last  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 491 of file decoding_encoding.c.

Referenced by video_decode_example().

static void video_decode_example ( const char *  outfilename, const char *  filename  )

static

Examples:

doc/examples/decoding_encoding.c.

Definition at line 519 of file decoding_encoding.c.

Referenced by main().

int main	(	int	argc,
		char **	argv
	)

Definition at line 616 of file decoding_encoding.c.