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/internal.h"
#include "avformat.h"
#include "avio_internal.h"
#include "internal.h"
#include "mpegts.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	MPEGTS_FLAG_REEMIT_PAT_PMT   0x01
#define	MPEGTS_FLAG_AAC_LATM   0x02
#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   "Service01"
#define	SDT_RETRANS_TIME   500
#define	PAT_RETRANS_TIME   100
#define	PCR_RETRANS_TIME   20

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 }

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 int	mpegts_write_pmt (AVFormatContext *s, MpegTSService *service)
static void	putstr8 (uint8_t **q_ptr, const char *str)
static void	mpegts_write_sdt (AVFormatContext *s)
static MpegTSService *	mpegts_add_service (MpegTSWrite *ts, int sid, const char *provider_name, const char *name)
static int64_t	get_pcr (const MpegTSWrite *ts, AVIOContext *pb)
static void	mpegts_prefix_m2ts_header (AVFormatContext *s)
static void	section_write_packet (MpegTSSection *s, const uint8_t *packet)
static int	mpegts_write_header (AVFormatContext *s)
static void	retransmit_si_info (AVFormatContext *s, int force_pat)
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 void	mpegts_write_pes (AVFormatContext *s, AVStream *st, const uint8_t *payload, int payload_size, int64_t pts, int64_t dts, int key)
int	ff_check_h264_startcode (AVFormatContext *s, const AVStream *st, const AVPacket *pkt)
	Check presence of H264 startcode.
static int	check_hevc_startcode (AVFormatContext *s, const AVStream *st, const 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)

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

Macro Definition Documentation

#define PCR_TIME_BASE   27000000

Definition at line 37 of file mpegtsenc.c.

Referenced by get_pcr(), and mpegts_write_header().

#define MPEGTS_FLAG_REEMIT_PAT_PMT   0x01

Definition at line 99 of file mpegtsenc.c.

Referenced by mpegts_write_packet_internal().

#define MPEGTS_FLAG_AAC_LATM   0x02

Definition at line 100 of file mpegtsenc.c.

Referenced by mpegts_write_header(), and mpegts_write_pmt().

#define DEFAULT_PES_HEADER_FREQ   16

Definition at line 109 of file mpegtsenc.c.

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

Definition at line 110 of file mpegtsenc.c.

#define SECTION_LENGTH   1020

Definition at line 114 of file mpegtsenc.c.

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

#define DEFAULT_PROVIDER_NAME   "FFmpeg"

Definition at line 204 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define DEFAULT_SERVICE_NAME   "Service01"

Definition at line 205 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define SDT_RETRANS_TIME   500

Definition at line 208 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define PAT_RETRANS_TIME   100

Definition at line 209 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define PCR_RETRANS_TIME   20

Definition at line 210 of file mpegtsenc.c.

Enumeration Type Documentation

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

Definition at line 62 of file mpegtsenc.c.

Function Documentation

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

static

Definition at line 117 of file mpegtsenc.c.

Referenced by mpegts_write_section1().

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

inlinestatic

Definition at line 165 of file mpegtsenc.c.

Referenced by mpegts_write_pat(), mpegts_write_pmt(), mpegts_write_sdt(), and 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

Definition at line 174 of file mpegtsenc.c.

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

static void mpegts_write_pat ( AVFormatContext *  s )

static

Definition at line 227 of file mpegtsenc.c.

Referenced by retransmit_si_info().

static int mpegts_write_pmt ( AVFormatContext *  s, MpegTSService *  service  )

static

Definition at line 244 of file mpegtsenc.c.

Referenced by retransmit_si_info().

static void putstr8 ( uint8_t **  q_ptr, const char *  str  )

static

Definition at line 497 of file mpegtsenc.c.

Referenced by mpegts_write_sdt().

static void mpegts_write_sdt ( AVFormatContext *  s )

static

Definition at line 513 of file mpegtsenc.c.

Referenced by retransmit_si_info().

static MpegTSService* mpegts_add_service ( MpegTSWrite *  ts, int  sid, const char *  provider_name, const char *  name  )

static

Definition at line 551 of file mpegtsenc.c.

Referenced by mpegts_write_header().

static int64_t get_pcr ( const MpegTSWrite *  ts, AVIOContext *  pb  )

static

Definition at line 578 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), mpegts_prefix_m2ts_header(), and mpegts_write_pes().

static void mpegts_prefix_m2ts_header ( AVFormatContext *  s )

static

Definition at line 584 of file mpegtsenc.c.

Referenced by mpegts_insert_null_packet(), mpegts_insert_pcr_only(), mpegts_write_pes(), and section_write_packet().

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

static

Definition at line 596 of file mpegtsenc.c.

Referenced by mpegts_write_header().

static int mpegts_write_header ( AVFormatContext *  s )

static

Definition at line 603 of file mpegtsenc.c.

static void retransmit_si_info ( AVFormatContext *  s, int  force_pat  )

static

Definition at line 836 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static int write_pcr_bits ( uint8_t *  buf, int64_t  pcr  )

static

Definition at line 853 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), and mpegts_write_pes().

static void mpegts_insert_null_packet ( AVFormatContext *  s )

static

Definition at line 868 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static void mpegts_insert_pcr_only ( AVFormatContext *  s, AVStream *  st  )

static

Definition at line 884 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

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

static

Definition at line 909 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static void set_af_flag ( uint8_t *  pkt, int  flag  )

static

Definition at line 924 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static void extend_af ( uint8_t *  pkt, int  size  )

static

Definition at line 940 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static uint8_t* get_ts_payload_start ( uint8_t *  pkt )

static

Definition at line 948 of file mpegtsenc.c.

Referenced by 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  )

static

Definition at line 960 of file mpegtsenc.c.

Referenced by mpegts_write_flush(), and mpegts_write_packet_internal().

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 1204 of file mpegtsenc.c.

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

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

static

Definition at line 1220 of file mpegtsenc.c.

Referenced by mpegts_write_packet_internal().

static int mpegts_write_packet_internal ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 1234 of file mpegtsenc.c.

Referenced by mpegts_write_packet().

static void mpegts_write_flush ( AVFormatContext *  s )

static

Definition at line 1389 of file mpegtsenc.c.

Referenced by mpegts_write_end(), and mpegts_write_packet().

static int mpegts_write_packet ( AVFormatContext *  s, AVPacket *  pkt  )

static

Definition at line 1406 of file mpegtsenc.c.

static int mpegts_write_end ( AVFormatContext *  s )

static

Definition at line 1416 of file mpegtsenc.c.

Variable Documentation

const AVOption options[]

static

Definition at line 1446 of file mpegtsenc.c.

const AVClass mpegts_muxer_class

static

Initial value:

= {
    .class_name = "MPEGTS muxer",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 1523 of file mpegtsenc.c.

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,
    .write_header   = mpegts_write_header,
    .write_packet   = mpegts_write_packet,
    .write_trailer  = mpegts_write_end,
    .flags          = AVFMT_ALLOW_FLUSH,
    .priv_class     = &mpegts_muxer_class,
}

Definition at line 1530 of file mpegtsenc.c.