FFmpeg
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Data Structures | Macros | Functions | Variables
mpegenc.c File Reference
#include "config_components.h"
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/attributes_internal.h"
#include "libavutil/fifo.h"
#include "libavutil/log.h"
#include "libavutil/mathematics.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavcodec/put_bits.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "mpeg.h"
#include "mux.h"

Go to the source code of this file.

Data Structures

struct  PacketDesc
 
struct  StreamInfo
 
struct  MpegMuxContext
 

Macros

#define MAX_PAYLOAD_SIZE   4096
 
#define VCD_PADDING_BITRATE_DEN   (2279 * 2294)
 
#define OFFSET(x)
 
#define E   AV_OPT_FLAG_ENCODING_PARAM
 

Functions

static int put_pack_header (AVFormatContext *ctx, uint8_t *buf, int64_t timestamp)
 
static int put_system_header (AVFormatContext *ctx, uint8_t *buf, int buf_size, int only_for_stream_id)
 
static int get_system_header_size (AVFormatContext *ctx)
 
static av_cold int mpeg_mux_init (AVFormatContext *ctx)
 
static void put_timestamp (AVIOContext *pb, int id, int64_t timestamp)
 
static int get_vcd_padding_size (AVFormatContext *ctx, int64_t pts)
 
static void put_padding_packet (AVFormatContext *ctx, AVIOContext *pb, int packet_bytes)
 
static int get_nb_frames (AVFormatContext *ctx, StreamInfo *stream, int len)
 
static int fifo_avio_wrapper (void *opaque, void *buf, size_t *nb_elems)
 
static int flush_packet (AVFormatContext *ctx, int stream_index, int64_t pts, int64_t dts, int64_t scr, int trailer_size)
 
static void put_vcd_padding_sector (AVFormatContext *ctx)
 
static int remove_decoded_packets (AVFormatContext *ctx, int64_t scr)
 
static int output_packet (AVFormatContext *ctx, int flush)
 
static int mpeg_mux_write_packet (AVFormatContext *ctx, AVPacket *pkt)
 
static int mpeg_mux_end (AVFormatContext *ctx)
 
static void mpeg_mux_deinit (AVFormatContext *ctx)
 

Variables

EXTERN const FFOutputFormat ff_mpeg1vcd_muxer
 
EXTERN const FFOutputFormat ff_mpeg2dvd_muxer
 
EXTERN const FFOutputFormat ff_mpeg2svcd_muxer
 
EXTERN const FFOutputFormat ff_mpeg2vob_muxer
 
static const AVOption options []
 
static const AVClass mpeg_class
 

Macro Definition Documentation

◆ MAX_PAYLOAD_SIZE

#define MAX_PAYLOAD_SIZE   4096

Definition at line 42 of file mpegenc.c.

◆ VCD_PADDING_BITRATE_DEN

#define VCD_PADDING_BITRATE_DEN   (2279 * 2294)

Referenced by get_vcd_padding_size().

◆ OFFSET

#define OFFSET ( x)
Value:
offsetof(MpegMuxContext, x)

Definition at line 1304 of file mpegenc.c.

◆ E

#define E   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 1305 of file mpegenc.c.

Function Documentation

◆ put_pack_header()

static int put_pack_header ( AVFormatContext * ctx,
uint8_t * buf,
int64_t timestamp )
static

Definition at line 97 of file mpegenc.c.

Referenced by flush_packet().

◆ put_system_header()

static int put_system_header ( AVFormatContext * ctx,
uint8_t * buf,
int buf_size,
int only_for_stream_id )
static

Definition at line 131 of file mpegenc.c.

Referenced by flush_packet().

◆ get_system_header_size()

static int get_system_header_size ( AVFormatContext * ctx)
static

Definition at line 280 of file mpegenc.c.

Referenced by mpeg_mux_init().

◆ mpeg_mux_init()

static av_cold int mpeg_mux_init ( AVFormatContext * ctx)
static

Definition at line 303 of file mpegenc.c.

◆ put_timestamp()

static void put_timestamp ( AVIOContext * pb,
int id,
int64_t timestamp )
inlinestatic

Definition at line 591 of file mpegenc.c.

Referenced by flush_packet().

◆ get_vcd_padding_size()

static int get_vcd_padding_size ( AVFormatContext * ctx,
int64_t pts )
static

Definition at line 600 of file mpegenc.c.

Referenced by output_packet().

◆ put_padding_packet()

static void put_padding_packet ( AVFormatContext * ctx,
AVIOContext * pb,
int packet_bytes )
static

Definition at line 623 of file mpegenc.c.

Referenced by flush_packet().

◆ get_nb_frames()

static int get_nb_frames ( AVFormatContext * ctx,
StreamInfo * stream,
int len )
static

Definition at line 639 of file mpegenc.c.

Referenced by flush_packet().

◆ fifo_avio_wrapper()

static int fifo_avio_wrapper ( void * opaque,
void * buf,
size_t * nb_elems )
static

Definition at line 654 of file mpegenc.c.

Referenced by flush_packet(), and swf_write_video().

◆ flush_packet()

static int flush_packet ( AVFormatContext * ctx,
int stream_index,
int64_t pts,
int64_t dts,
int64_t scr,
int trailer_size )
static

Definition at line 661 of file mpegenc.c.

Referenced by output_packet().

◆ put_vcd_padding_sector()

static void put_vcd_padding_sector ( AVFormatContext * ctx)
static

Definition at line 970 of file mpegenc.c.

Referenced by output_packet().

◆ remove_decoded_packets()

static int remove_decoded_packets ( AVFormatContext * ctx,
int64_t scr )
static

Definition at line 993 of file mpegenc.c.

Referenced by output_packet().

◆ output_packet()

static int output_packet ( AVFormatContext * ctx,
int flush )
static

Definition at line 1022 of file mpegenc.c.

Referenced by encode_audio_frame(), mpeg_mux_end(), and mpeg_mux_write_packet().

◆ mpeg_mux_write_packet()

static int mpeg_mux_write_packet ( AVFormatContext * ctx,
AVPacket * pkt )
static

Definition at line 1168 of file mpegenc.c.

◆ mpeg_mux_end()

static int mpeg_mux_end ( AVFormatContext * ctx)
static

Definition at line 1263 of file mpegenc.c.

◆ mpeg_mux_deinit()

static void mpeg_mux_deinit ( AVFormatContext * ctx)
static

Definition at line 1289 of file mpegenc.c.

Variable Documentation

◆ ff_mpeg1vcd_muxer

EXTERN const FFOutputFormat ff_mpeg1vcd_muxer

Definition at line 92 of file mpegenc.c.

Referenced by mpeg_mux_init().

◆ ff_mpeg2dvd_muxer

EXTERN const FFOutputFormat ff_mpeg2dvd_muxer

Definition at line 93 of file mpegenc.c.

Referenced by mpeg_mux_init().

◆ ff_mpeg2svcd_muxer

EXTERN const FFOutputFormat ff_mpeg2svcd_muxer

Definition at line 94 of file mpegenc.c.

Referenced by mpeg_mux_init().

◆ ff_mpeg2vob_muxer

EXTERN const FFOutputFormat ff_mpeg2vob_muxer

Definition at line 95 of file mpegenc.c.

Referenced by mpeg_mux_init().

◆ options

const AVOption options[]
static
Initial value:
= {
{ "muxrate", "mux rate as bits/s", OFFSET(user_mux_rate), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, ((1<<22) - 1) * (8 * 50), E },
{ "preload", "initial demux-decode delay in microseconds", OFFSET(preload), AV_OPT_TYPE_INT, { .i64 = 500000 }, 0, INT_MAX, E },
{ NULL },
}
E
#define E
Definition avdct.c:34
NULL
#define NULL
Definition coverity.c:32
OFFSET
#define OFFSET(x)
Definition ffmpeg_opt.c:1551
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition opt.h:258

Definition at line 1306 of file mpegenc.c.

◆ mpeg_class

const AVClass mpeg_class
static
Initial value:
= {
.class_name = "mpeg/(s)vcd/vob/dvd muxer",
.item_name = av_default_item_name,
.version = LIBAVUTIL_VERSION_INT,
.option = options,
}
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition log.c:241
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition version.h:85

Definition at line 1312 of file mpegenc.c.

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