FFmpeg: doc/examples/mux.c File Reference

FFmpeg

mux.c File Reference

#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 <libavcodec/avcodec.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, AVCodecContext *c, AVStream *st, AVFrame *frame, AVPacket *pkt)

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

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

static void open_audio (AVFormatContext *oc, const 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_frame (enum AVPixelFormat pix_fmt, int width, int height)

static void open_video (AVFormatContext *oc, const 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)

Macro Definition Documentation

◆ STREAM_DURATION

#define STREAM_DURATION 10.0

Examples: mux.c.

Definition at line 46 of file mux.c.

◆ STREAM_FRAME_RATE

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

Examples: mux.c.

Definition at line 47 of file mux.c.

◆ STREAM_PIX_FMT

#define STREAM_PIX_FMT AV_PIX_FMT_YUV420P /* default pix_fmt */

Examples: mux.c.

Definition at line 48 of file mux.c.

◆ SCALE_FLAGS

#define SCALE_FLAGS SWS_BICUBIC

Examples: mux.c.

Definition at line 50 of file mux.c.

Function Documentation

◆ log_packet()

static void log_packet ( const AVFormatContext * fmt_ctx,

const AVPacket * pkt

)

static

Examples: mux.c.

Definition at line 72 of file mux.c.

Referenced by write_frame().

◆ write_frame()

static int write_frame ( AVFormatContext * fmt_ctx,

AVCodecContext * c,

AVStream * st,

AVFrame * frame,

AVPacket * pkt

)

static

Examples: mux.c.

Definition at line 83 of file mux.c.

Referenced by write_audio_frame(), and write_video_frame().

◆ add_stream()

static void add_stream ( OutputStream * ost,

AVFormatContext * oc,

const AVCodec ** codec,

enum AVCodecID codec_id

)

static

Examples: mux.c.

Definition at line 125 of file mux.c.

Referenced by main().

◆ alloc_audio_frame()

static AVFrame* alloc_audio_frame ( enum AVSampleFormat sample_fmt,

const AVChannelLayout * channel_layout,

int sample_rate,

int nb_samples

)

static

Examples: mux.c.

Definition at line 216 of file mux.c.

Referenced by open_audio().

◆ open_audio()

static void open_audio ( AVFormatContext * oc,

const AVCodec * codec,

OutputStream * ost,

AVDictionary * opt_arg

)

static

Examples: mux.c.

Definition at line 241 of file mux.c.

Referenced by main().

◆ get_audio_frame()

static AVFrame* get_audio_frame ( OutputStream * ost )

static

Examples: mux.c.

Definition at line 307 of file mux.c.

Referenced by write_audio_frame().

◆ write_audio_frame()

static int write_audio_frame ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples: mux.c.

Definition at line 336 of file mux.c.

Referenced by main().

◆ alloc_frame()

static AVFrame* alloc_frame ( enum AVPixelFormat pix_fmt,

int width,

int height

)

static

Examples: mux.c.

Definition at line 381 of file mux.c.

Referenced by open_video().

◆ open_video()

static void open_video ( AVFormatContext * oc,

const AVCodec * codec,

OutputStream * ost,

AVDictionary * opt_arg

)

static

Examples: mux.c.

Definition at line 404 of file mux.c.

Referenced by main().

◆ fill_yuv_image()

static void fill_yuv_image ( AVFrame * pict,

int frame_index,

int width,

int height

)

static

Examples: mux.c.

Definition at line 449 of file mux.c.

Referenced by get_video_frame().

◆ get_video_frame()

static AVFrame* get_video_frame ( OutputStream * ost )

static

Examples: mux.c.

Definition at line 470 of file mux.c.

Referenced by write_video_frame().

◆ write_video_frame()

static int write_video_frame ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples: mux.c.

Definition at line 516 of file mux.c.

Referenced by main().

◆ close_stream()

static void close_stream ( AVFormatContext * oc,

OutputStream * ost

)

static

Examples: mux.c.

Definition at line 521 of file mux.c.

Referenced by main().

◆ main()

int main ( int argc,

char ** argv

)

Examples: mux.c.

Definition at line 534 of file mux.c.

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