muxing.c File Reference

libavformat API example. More...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <libavutil/opt.h>
#include <libavutil/mathematics.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libswresample/swresample.h>

Go to the source code of this file.

Macros
#define	STREAM_DURATION   200.0
#define	STREAM_FRAME_RATE   25 /* 25 images/s */
#define	STREAM_NB_FRAMES   ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
#define	STREAM_PIX_FMT   AV_PIX_FMT_YUV420P /* default pix_fmt */

Functions
static AVStream *	add_stream (AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id)
static void	open_audio (AVFormatContext *oc, AVCodec *codec, AVStream *st)
static void	get_audio_frame (int16_t *samples, int frame_size, int nb_channels)
static void	write_audio_frame (AVFormatContext *oc, AVStream *st)
static void	close_audio (AVFormatContext *oc, AVStream *st)
static void	open_video (AVFormatContext *oc, AVCodec *codec, AVStream *st)
static void	fill_yuv_image (AVPicture *pict, int frame_index, int width, int height)
static void	write_video_frame (AVFormatContext *oc, AVStream *st)
static void	close_video (AVFormatContext *oc, AVStream *st)
int	main (int argc, char **argv)

Variables
static int	sws_flags = SWS_BICUBIC
static float	t
static float	tincr
static float	tincr2
static uint8_t **	src_samples_data
static int	src_samples_linesize
static int	src_nb_samples
static int	max_dst_nb_samples
uint8_t **	dst_samples_data
int	dst_samples_linesize
int	dst_samples_size
struct SwrContext *	swr_ctx = NULL
static AVFrame *	frame
static AVPicture	src_picture
static AVPicture	dst_picture
static int	frame_count

Detailed Description

libavformat API example.

Output a media file in any supported libavformat format. The default codecs are used.

Definition in file muxing.c.

Macro Definition Documentation

#define STREAM_DURATION   200.0

Definition at line 44 of file muxing.c.

Referenced by main().

#define STREAM_FRAME_RATE   25 /* 25 images/s */

Definition at line 45 of file muxing.c.

Referenced by add_stream().

#define STREAM_NB_FRAMES   ((int)(STREAM_DURATION * STREAM_FRAME_RATE))

Definition at line 46 of file muxing.c.

Referenced by write_video_frame().

#define STREAM_PIX_FMT   AV_PIX_FMT_YUV420P /* default pix_fmt */

Definition at line 47 of file muxing.c.

Referenced by add_stream().

Function Documentation

static AVStream* add_stream ( AVFormatContext *  oc, AVCodec **  codec, enum AVCodecID  codec_id  )

static

Definition at line 52 of file muxing.c.

Referenced by main().

static void open_audio ( AVFormatContext *  oc, AVCodec *  codec, AVStream *  st  )

static

Definition at line 136 of file muxing.c.

Referenced by main().

static void get_audio_frame ( int16_t *  samples, int  frame_size, int  nb_channels  )

static

Definition at line 205 of file muxing.c.

Referenced by write_audio_frame().

static void write_audio_frame ( AVFormatContext *  oc, AVStream *  st  )

static

Definition at line 220 of file muxing.c.

Referenced by main().

static void close_audio ( AVFormatContext *  oc, AVStream *  st  )

static

Definition at line 286 of file muxing.c.

Referenced by main().

static void open_video ( AVFormatContext *  oc, AVCodec *  codec, AVStream *  st  )

static

Definition at line 300 of file muxing.c.

Referenced by main().

static void fill_yuv_image ( AVPicture *  pict, int  frame_index, int  width, int  height  )

static

Definition at line 343 of file muxing.c.

Referenced by write_video_frame().

static void write_video_frame ( AVFormatContext *  oc, AVStream *  st  )

static

Definition at line 364 of file muxing.c.

Referenced by main().

static void close_video ( AVFormatContext *  oc, AVStream *  st  )

static

Definition at line 437 of file muxing.c.

Referenced by main().

int main	(	int	argc,
		char **	argv
	)

Definition at line 448 of file muxing.c.

Variable Documentation

int sws_flags = SWS_BICUBIC

static

Definition at line 49 of file muxing.c.

Referenced by write_video_frame().

float t

static

Definition at line 123 of file muxing.c.

Referenced by get_audio_frame(), and open_audio().

float tincr

static

Definition at line 123 of file muxing.c.

Referenced by get_audio_frame(), and open_audio().

float tincr2

static

Definition at line 123 of file muxing.c.

Referenced by get_audio_frame(), and open_audio().

uint8_t** src_samples_data

static

Definition at line 125 of file muxing.c.

Referenced by close_audio(), open_audio(), and write_audio_frame().

int src_samples_linesize

static

Definition at line 126 of file muxing.c.

Referenced by open_audio().

int src_nb_samples

static

Definition at line 127 of file muxing.c.

Referenced by open_audio(), and write_audio_frame().

int max_dst_nb_samples

static

Definition at line 129 of file muxing.c.

Referenced by open_audio(), and write_audio_frame().

uint8_t** dst_samples_data

Definition at line 130 of file muxing.c.

int dst_samples_linesize

Definition at line 131 of file muxing.c.

int dst_samples_size

Definition at line 132 of file muxing.c.

struct SwrContext* swr_ctx = NULL

Definition at line 134 of file muxing.c.

AVFrame* frame

static

Definition at line 296 of file muxing.c.

Referenced by write_audio_frame().

AVPicture src_picture

static

Definition at line 297 of file muxing.c.

AVPicture dst_picture

static

Definition at line 297 of file muxing.c.

Referenced by open_video().

int frame_count

static

Definition at line 298 of file muxing.c.

Referenced by write_video_frame().