FFmpeg: doc/examples/muxing.c File Reference

FFmpeg

muxing.c File Reference

libavformat API example. More...

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

Go to the source code of this file.

Data Structures

struct OutputStream

Macros

#define STREAM_DURATION 10.0

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

#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */

#define SCALE_FLAGS SWS_BICUBIC

Functions

static void log_packet (const AVFormatContext *fmt_ctx, const AVPacket *pkt)

static int write_frame (AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)

static void add_stream (OutputStream *ost, AVFormatContext *oc, AVCodec **codec, enum AVCodecID codec_id)

static AVFrame * alloc_audio_frame (enum AVSampleFormat sample_fmt, uint64_t channel_layout, int sample_rate, int nb_samples)

static void open_audio (AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)

static AVFrame * get_audio_frame (OutputStream *ost)

static int write_audio_frame (AVFormatContext *oc, OutputStream *ost)

static AVFrame * alloc_picture (enum AVPixelFormat pix_fmt, int width, int height)

static void open_video (AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)

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

static AVFrame * get_video_frame (OutputStream *ost)

static int write_video_frame (AVFormatContext *oc, OutputStream *ost)

static void close_stream (AVFormatContext *oc, OutputStream *ost)

int main (int argc, char **argv)

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 10.0

Examples:: muxing.c.

Definition at line 46 of file muxing.c.

Referenced by get_audio_frame(), and get_video_frame().

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

Examples:: muxing.c.

Definition at line 47 of file muxing.c.

Referenced by add_stream().

#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */

Examples:: muxing.c.

Definition at line 48 of file muxing.c.

Referenced by add_stream().

#define SCALE_FLAGS SWS_BICUBIC

Examples:: muxing.c.

Definition at line 50 of file muxing.c.

Function Documentation

static void log_packet ( const AVFormatContext * fmt_ctx,

const AVPacket * pkt

)

static

Examples:: muxing.c, and remuxing.c.

Definition at line 69 of file muxing.c.

Referenced by write_frame().

static int write_frame ( AVFormatContext * fmt_ctx,

const AVRational * time_base,

AVStream * st,

AVPacket * pkt

)

static

Examples:: muxing.c.

Definition at line 80 of file muxing.c.

Referenced by write_video_frame().

static void add_stream ( OutputStream * ost,

AVFormatContext * oc,

AVCodec ** codec,

enum AVCodecID codec_id

)

static

Examples:: muxing.c.

Definition at line 92 of file muxing.c.

Referenced by main().

static AVFrame* alloc_audio_frame ( enum AVSampleFormat sample_fmt,

uint64_t channel_layout,

int sample_rate,

int nb_samples

)

static

Examples:: muxing.c.

Definition at line 181 of file muxing.c.

Referenced by open_audio().

static void open_audio ( AVFormatContext * oc,

AVCodec * codec,

OutputStream * ost,

AVDictionary * opt_arg

)

static

Examples:: muxing.c.

Definition at line 209 of file muxing.c.

Referenced by main().

static AVFrame* get_audio_frame ( OutputStream * ost )

static

Examples:: muxing.c.

Definition at line 267 of file muxing.c.

Referenced by write_audio_frame().

static int write_audio_frame ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples:: muxing.c.

Definition at line 296 of file muxing.c.

Referenced by main().

static AVFrame* alloc_picture ( enum AVPixelFormat pix_fmt,

int width,

int height

)

static

Examples:: muxing.c.

Definition at line 360 of file muxing.c.

Referenced by open_video().

static void open_video ( AVFormatContext * oc,

AVCodec * codec,

OutputStream * ost,

AVDictionary * opt_arg

)

static

Examples:: muxing.c.

Definition at line 383 of file muxing.c.

Referenced by main().

static void fill_yuv_image ( AVFrame * pict,

int frame_index,

int width,

int height

)

static

Examples:: muxing.c, and scaling_video.c.

Definition at line 420 of file muxing.c.

static AVFrame* get_video_frame ( OutputStream * ost )

static

Examples:: muxing.c.

Definition at line 449 of file muxing.c.

Referenced by write_video_frame().

static int write_video_frame ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples:: muxing.c.

Definition at line 490 of file muxing.c.

Referenced by main().

static void close_stream ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples:: muxing.c.

Definition at line 544 of file muxing.c.

Referenced by main().

int main ( int argc,

char ** argv

)

Definition at line 556 of file muxing.c.

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