FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
mpegtsenc.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/bswap.h"
#include "libavutil/crc.h"
#include "libavutil/dict.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavcodec/ac3_parser_internal.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/startcode.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "mpegts.h"
#include "mux.h"

Go to the source code of this file.

Data Structures

struct  MpegTSSection
 
struct  MpegTSService
 
struct  MpegTSWrite
 
struct  MpegTSWriteStream
 

Macros

#define PCR_TIME_BASE   27000000
 
#define DVB_PRIVATE_NETWORK_START   0xff01
 
#define MPEGTS_FLAG_REEMIT_PAT_PMT   0x01
 
#define MPEGTS_FLAG_AAC_LATM   0x02
 
#define MPEGTS_FLAG_PAT_PMT_AT_FRAMES   0x04
 
#define MPEGTS_FLAG_SYSTEM_B   0x08
 
#define MPEGTS_FLAG_DISCONT   0x10
 
#define MPEGTS_FLAG_NIT   0x20
 
#define MPEGTS_FLAG_OMIT_RAI   0x40
 
#define DEFAULT_PES_HEADER_FREQ   16
 
#define DEFAULT_PES_PAYLOAD_SIZE   ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)
 
#define SECTION_LENGTH   1020
 
#define DEFAULT_PROVIDER_NAME   "FFmpeg"
 
#define DEFAULT_SERVICE_NAME   "Service"
 
#define SDT_RETRANS_TIME   500
 
#define PAT_RETRANS_TIME   100
 
#define PCR_RETRANS_TIME   20
 
#define NIT_RETRANS_TIME   500
 
#define OFFSET(x)   offsetof(MpegTSWrite, x)
 
#define ENC   AV_OPT_FLAG_ENCODING_PARAM
 

Enumerations

enum  {
  MPEGTS_SERVICE_TYPE_DIGITAL_TV = 0x01, MPEGTS_SERVICE_TYPE_DIGITAL_RADIO = 0x02, MPEGTS_SERVICE_TYPE_TELETEXT = 0x03, MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO = 0x0A,
  MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV = 0x11, MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV = 0x16, MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV = 0x19, MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV = 0x1F
}
 

Functions

static void mpegts_write_section (MpegTSSection *s, uint8_t *buf, int len)
 
static void put16 (uint8_t **q_ptr, int val)
 
static int mpegts_write_section1 (MpegTSSection *s, int tid, int id, int version, int sec_num, int last_sec_num, uint8_t *buf, int len)
 
static void mpegts_write_pat (AVFormatContext *s)
 
static void putbuf (uint8_t **q_ptr, const uint8_t *buf, size_t len)
 
static int put_arib_caption_descriptor (AVFormatContext *s, uint8_t **q_ptr, AVCodecParameters *codecpar)
 
static void put_registration_descriptor (uint8_t **q_ptr, uint32_t tag)
 
static int get_dvb_stream_type (AVFormatContext *s, AVStream *st)
 
static int get_m2ts_stream_type (AVFormatContext *s, AVStream *st)
 
static int mpegts_write_pmt (AVFormatContext *s, MpegTSService *service)
 
static void mpegts_write_sdt (AVFormatContext *s)
 
static void mpegts_write_nit (AVFormatContext *s)
 
static int encode_str8 (uint8_t *buf, const char *str)
 
static int64_t get_pcr (const MpegTSWrite *ts)
 
static void write_packet (AVFormatContext *s, const uint8_t *packet)
 
static void section_write_packet (MpegTSSection *s, const uint8_t *packet)
 
static MpegTSServicempegts_add_service (AVFormatContext *s, int sid, const AVDictionary *metadata, AVProgram *program)
 
static void enable_pcr_generation_for_stream (AVFormatContext *s, AVStream *pcr_st)
 
static void select_pcr_streams (AVFormatContext *s)
 
static int mpegts_init (AVFormatContext *s)
 
static void retransmit_si_info (AVFormatContext *s, int force_pat, int force_sdt, int force_nit, int64_t pcr)
 
static int write_pcr_bits (uint8_t *buf, int64_t pcr)
 
static void mpegts_insert_null_packet (AVFormatContext *s)
 
static void mpegts_insert_pcr_only (AVFormatContext *s, AVStream *st)
 
static void write_pts (uint8_t *q, int fourbits, int64_t pts)
 
static void set_af_flag (uint8_t *pkt, int flag)
 
static void extend_af (uint8_t *pkt, int size)
 
static uint8_t * get_ts_payload_start (uint8_t *pkt)
 
static int get_pes_stream_id (AVFormatContext *s, AVStream *st, int stream_id, int *async)
 
static void mpegts_write_pes (AVFormatContext *s, AVStream *st, const uint8_t *payload, int payload_size, int64_t pts, int64_t dts, int key, int stream_id)
 
int ff_check_h264_startcode (AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
 Check presence of H264 startcode. More...
 
static int check_hevc_startcode (AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
 
static int opus_get_packet_samples (AVFormatContext *s, AVPacket *pkt)
 
static int mpegts_write_packet_internal (AVFormatContext *s, AVPacket *pkt)
 
static void mpegts_write_flush (AVFormatContext *s)
 
static int mpegts_write_packet (AVFormatContext *s, AVPacket *pkt)
 
static int mpegts_write_end (AVFormatContext *s)
 
static void mpegts_deinit (AVFormatContext *s)
 
static int mpegts_check_bitstream (AVFormatContext *s, AVStream *st, const AVPacket *pkt)
 

Variables

static const AVOption options []
 
static const AVClass mpegts_muxer_class
 
const AVOutputFormat ff_mpegts_muxer
 

Macro Definition Documentation

◆ PCR_TIME_BASE

#define PCR_TIME_BASE   27000000

Definition at line 40 of file mpegtsenc.c.

◆ DVB_PRIVATE_NETWORK_START

#define DVB_PRIVATE_NETWORK_START   0xff01

Definition at line 44 of file mpegtsenc.c.

◆ MPEGTS_FLAG_REEMIT_PAT_PMT

#define MPEGTS_FLAG_REEMIT_PAT_PMT   0x01

Definition at line 109 of file mpegtsenc.c.

◆ MPEGTS_FLAG_AAC_LATM

#define MPEGTS_FLAG_AAC_LATM   0x02

Definition at line 110 of file mpegtsenc.c.

◆ MPEGTS_FLAG_PAT_PMT_AT_FRAMES

#define MPEGTS_FLAG_PAT_PMT_AT_FRAMES   0x04

Definition at line 111 of file mpegtsenc.c.

◆ MPEGTS_FLAG_SYSTEM_B

#define MPEGTS_FLAG_SYSTEM_B   0x08

Definition at line 112 of file mpegtsenc.c.

◆ MPEGTS_FLAG_DISCONT

#define MPEGTS_FLAG_DISCONT   0x10

Definition at line 113 of file mpegtsenc.c.

◆ MPEGTS_FLAG_NIT

#define MPEGTS_FLAG_NIT   0x20

Definition at line 114 of file mpegtsenc.c.

◆ MPEGTS_FLAG_OMIT_RAI

#define MPEGTS_FLAG_OMIT_RAI   0x40

Definition at line 115 of file mpegtsenc.c.

◆ DEFAULT_PES_HEADER_FREQ

#define DEFAULT_PES_HEADER_FREQ   16

Definition at line 132 of file mpegtsenc.c.

◆ DEFAULT_PES_PAYLOAD_SIZE

#define DEFAULT_PES_PAYLOAD_SIZE   ((DEFAULT_PES_HEADER_FREQ - 1) * 184 + 170)

Definition at line 133 of file mpegtsenc.c.

◆ SECTION_LENGTH

#define SECTION_LENGTH   1020

Definition at line 137 of file mpegtsenc.c.

◆ DEFAULT_PROVIDER_NAME

#define DEFAULT_PROVIDER_NAME   "FFmpeg"

Definition at line 233 of file mpegtsenc.c.

◆ DEFAULT_SERVICE_NAME

#define DEFAULT_SERVICE_NAME   "Service"

Definition at line 234 of file mpegtsenc.c.

◆ SDT_RETRANS_TIME

#define SDT_RETRANS_TIME   500

Definition at line 237 of file mpegtsenc.c.

◆ PAT_RETRANS_TIME

#define PAT_RETRANS_TIME   100

Definition at line 238 of file mpegtsenc.c.

◆ PCR_RETRANS_TIME

#define PCR_RETRANS_TIME   20

Definition at line 239 of file mpegtsenc.c.

◆ NIT_RETRANS_TIME

#define NIT_RETRANS_TIME   500

Definition at line 240 of file mpegtsenc.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(MpegTSWrite, x)

Definition at line 2239 of file mpegtsenc.c.

◆ ENC

#define ENC   AV_OPT_FLAG_ENCODING_PARAM

Definition at line 2240 of file mpegtsenc.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum
Enumerator
MPEGTS_SERVICE_TYPE_DIGITAL_TV 
MPEGTS_SERVICE_TYPE_DIGITAL_RADIO 
MPEGTS_SERVICE_TYPE_TELETEXT 
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_RADIO 
MPEGTS_SERVICE_TYPE_MPEG2_DIGITAL_HDTV 
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_SDTV 
MPEGTS_SERVICE_TYPE_ADVANCED_CODEC_DIGITAL_HDTV 
MPEGTS_SERVICE_TYPE_HEVC_DIGITAL_HDTV 

Definition at line 67 of file mpegtsenc.c.

Function Documentation

◆ mpegts_write_section()

static void mpegts_write_section ( MpegTSSection s,
uint8_t *  buf,
int  len 
)
static

Definition at line 140 of file mpegtsenc.c.

Referenced by mpegts_write_section1().

◆ put16()

static void put16 ( uint8_t **  q_ptr,
int  val 
)
inlinestatic

◆ mpegts_write_section1()

static int mpegts_write_section1 ( MpegTSSection s,
int  tid,
int  id,
int  version,
int  sec_num,
int  last_sec_num,
uint8_t *  buf,
int  len 
)
static

◆ mpegts_write_pat()

static void mpegts_write_pat ( AVFormatContext s)
static

Definition at line 266 of file mpegtsenc.c.

Referenced by retransmit_si_info().

◆ putbuf()

static void putbuf ( uint8_t **  q_ptr,
const uint8_t *  buf,
size_t  len 
)
static

Definition at line 287 of file mpegtsenc.c.

Referenced by mpegts_write_nit(), mpegts_write_pmt(), and mpegts_write_sdt().

◆ put_arib_caption_descriptor()

static int put_arib_caption_descriptor ( AVFormatContext s,
uint8_t **  q_ptr,
AVCodecParameters codecpar 
)
static

Definition at line 293 of file mpegtsenc.c.

Referenced by mpegts_write_pmt().

◆ put_registration_descriptor()

static void put_registration_descriptor ( uint8_t **  q_ptr,
uint32_t  tag 
)
static

Definition at line 337 of file mpegtsenc.c.

Referenced by mpegts_write_pmt().

◆ get_dvb_stream_type()

static int get_dvb_stream_type ( AVFormatContext s,
AVStream st 
)
static

Definition at line 349 of file mpegtsenc.c.

Referenced by mpegts_write_pmt().

◆ get_m2ts_stream_type()

static int get_m2ts_stream_type ( AVFormatContext s,
AVStream st 
)
static

Definition at line 447 of file mpegtsenc.c.

Referenced by mpegts_write_pmt().

◆ mpegts_write_pmt()

static int mpegts_write_pmt ( AVFormatContext s,
MpegTSService service 
)
static

Definition at line 498 of file mpegtsenc.c.

Referenced by retransmit_si_info().

◆ mpegts_write_sdt()

static void mpegts_write_sdt ( AVFormatContext s)
static

Definition at line 835 of file mpegtsenc.c.

Referenced by retransmit_si_info().

◆ mpegts_write_nit()

static void mpegts_write_nit ( AVFormatContext s)
static

Definition at line 873 of file mpegtsenc.c.

Referenced by retransmit_si_info().

◆ encode_str8()

static int encode_str8 ( uint8_t *  buf,
const char *  str 
)
static

Definition at line 918 of file mpegtsenc.c.

Referenced by mpegts_add_service(), and mpegts_init().

◆ get_pcr()

static int64_t get_pcr ( const MpegTSWrite ts)
static

Definition at line 950 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), mpegts_write_pes(), and write_packet().

◆ write_packet()

static void write_packet ( AVFormatContext s,
const uint8_t *  packet 
)
static

◆ section_write_packet()

static void section_write_packet ( MpegTSSection s,
const uint8_t *  packet 
)
static

Definition at line 970 of file mpegtsenc.c.

Referenced by mpegts_add_service(), and mpegts_init().

◆ mpegts_add_service()

static MpegTSService* mpegts_add_service ( AVFormatContext s,
int  sid,
const AVDictionary metadata,
AVProgram program 
)
static

Definition at line 976 of file mpegtsenc.c.

Referenced by mpegts_init().

◆ enable_pcr_generation_for_stream()

static void enable_pcr_generation_for_stream ( AVFormatContext s,
AVStream pcr_st 
)
static

Definition at line 1021 of file mpegtsenc.c.

Referenced by select_pcr_streams().

◆ select_pcr_streams()

static void select_pcr_streams ( AVFormatContext s)
static

Definition at line 1052 of file mpegtsenc.c.

Referenced by mpegts_init().

◆ mpegts_init()

static int mpegts_init ( AVFormatContext s)
static

Definition at line 1081 of file mpegtsenc.c.

◆ retransmit_si_info()

static void retransmit_si_info ( AVFormatContext s,
int  force_pat,
int  force_sdt,
int  force_nit,
int64_t  pcr 
)
static

Definition at line 1296 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ write_pcr_bits()

static int write_pcr_bits ( uint8_t *  buf,
int64_t  pcr 
)
static

Definition at line 1329 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), and mpegts_write_pes().

◆ mpegts_insert_null_packet()

static void mpegts_insert_null_packet ( AVFormatContext s)
static

Definition at line 1344 of file mpegtsenc.c.

Referenced by mpegts_write_flush(), and mpegts_write_pes().

◆ mpegts_insert_pcr_only()

static void mpegts_insert_pcr_only ( AVFormatContext s,
AVStream st 
)
static

Definition at line 1359 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ write_pts()

static void write_pts ( uint8_t *  q,
int  fourbits,
int64_t  pts 
)
static

Definition at line 1387 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ set_af_flag()

static void set_af_flag ( uint8_t *  pkt,
int  flag 
)
static

Definition at line 1402 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ extend_af()

static void extend_af ( uint8_t *  pkt,
int  size 
)
static

Definition at line 1418 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ get_ts_payload_start()

static uint8_t* get_ts_payload_start ( uint8_t *  pkt)
static

Definition at line 1426 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ get_pes_stream_id()

static int get_pes_stream_id ( AVFormatContext s,
AVStream st,
int  stream_id,
int async 
)
static

Definition at line 1434 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

◆ mpegts_write_pes()

static void mpegts_write_pes ( AVFormatContext s,
AVStream st,
const uint8_t *  payload,
int  payload_size,
int64_t  pts,
int64_t  dts,
int  key,
int  stream_id 
)
static

Definition at line 1468 of file mpegtsenc.c.

Referenced by mpegts_write_flush(), and mpegts_write_packet_internal().

◆ ff_check_h264_startcode()

int ff_check_h264_startcode ( AVFormatContext s,
const AVStream st,
const AVPacket pkt 
)

Check presence of H264 startcode.

Returns
<0 to stop processing

Definition at line 1754 of file mpegtsenc.c.

Referenced by avi_write_packet(), mpegts_write_packet_internal(), and write_packet().

◆ check_hevc_startcode()

static int check_hevc_startcode ( AVFormatContext s,
const AVStream st,
const AVPacket pkt 
)
static

Definition at line 1771 of file mpegtsenc.c.

Referenced by mpegts_write_packet_internal().

◆ opus_get_packet_samples()

static int opus_get_packet_samples ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 1790 of file mpegtsenc.c.

Referenced by mpegts_write_packet_internal().

◆ mpegts_write_packet_internal()

static int mpegts_write_packet_internal ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 1838 of file mpegtsenc.c.

Referenced by mpegts_write_packet().

◆ mpegts_write_flush()

static void mpegts_write_flush ( AVFormatContext s)
static

Definition at line 2148 of file mpegtsenc.c.

Referenced by mpegts_write_end(), and mpegts_write_packet().

◆ mpegts_write_packet()

static int mpegts_write_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 2173 of file mpegtsenc.c.

◆ mpegts_write_end()

static int mpegts_write_end ( AVFormatContext s)
static

Definition at line 2183 of file mpegtsenc.c.

◆ mpegts_deinit()

static void mpegts_deinit ( AVFormatContext s)
static

Definition at line 2191 of file mpegtsenc.c.

◆ mpegts_check_bitstream()

static int mpegts_check_bitstream ( AVFormatContext s,
AVStream st,
const AVPacket pkt 
)
static

Definition at line 2217 of file mpegtsenc.c.

Variable Documentation

◆ options

const AVOption options[]
static

Definition at line 2241 of file mpegtsenc.c.

◆ mpegts_muxer_class

const AVClass mpegts_muxer_class
static
Initial value:
= {
.class_name = "MPEGTS muxer",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 2304 of file mpegtsenc.c.

◆ ff_mpegts_muxer

const AVOutputFormat ff_mpegts_muxer
Initial value:
= {
.name = "mpegts",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
.mime_type = "video/MP2T",
.extensions = "ts,m2t,m2ts,mts",
.priv_data_size = sizeof(MpegTSWrite),
.audio_codec = AV_CODEC_ID_MP2,
.video_codec = AV_CODEC_ID_MPEG2VIDEO,
.priv_class = &mpegts_muxer_class,
}

Definition at line 2311 of file mpegtsenc.c.

AVFMT_NODIMENSIONS
#define AVFMT_NODIMENSIONS
Format does not need width/height.
Definition: avformat.h:485
AVFMT_VARIABLE_FPS
#define AVFMT_VARIABLE_FPS
Format allows variable fps.
Definition: avformat.h:484
check_bitstream
static int check_bitstream(AVFormatContext *s, FFStream *sti, AVPacket *pkt)
Definition: mux.c:1073
deinit
static void deinit(AVFormatContext *s)
Definition: chromaprint.c:49
mpegts_deinit
static void mpegts_deinit(AVFormatContext *s)
Definition: mpegtsenc.c:2191
mpegts_check_bitstream
static int mpegts_check_bitstream(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
Definition: mpegtsenc.c:2217
mpegts_write_end
static int mpegts_write_end(AVFormatContext *s)
Definition: mpegtsenc.c:2183
mpegts_write_packet
static int mpegts_write_packet(AVFormatContext *s, AVPacket *pkt)
Definition: mpegtsenc.c:2173
AV_CODEC_ID_MP2
@ AV_CODEC_ID_MP2
Definition: codec_id.h:435
init
int(* init)(AVBSFContext *ctx)
Definition: dts2pts_bsf.c:363
options
static const AVOption options[]
Definition: mpegtsenc.c:2241
mpegts_init
static int mpegts_init(AVFormatContext *s)
Definition: mpegtsenc.c:1081
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
write_trailer
static int write_trailer(AVFormatContext *s1)
Definition: v4l2enc.c:100
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:115
AVFMT_ALLOW_FLUSH
#define AVFMT_ALLOW_FLUSH
Format allows flushing.
Definition: avformat.h:490
write_packet
static void write_packet(AVFormatContext *s, const uint8_t *packet)
Definition: mpegtsenc.c:956
MpegTSWrite
Definition: mpegtsenc.c:77
mpegts_muxer_class
static const AVClass mpegts_muxer_class
Definition: mpegtsenc.c:2304
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_CODEC_ID_MPEG2VIDEO
@ AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: codec_id.h:54