mpegtsenc.c File Reference
#include "libavutil/bswap.h"
#include "libavutil/crc.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavcodec/mpegvideo.h"
#include "avformat.h"
#include "internal.h"
#include "mpegts.h"
#include "adts.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 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   "Libav"
#define DEFAULT_SERVICE_NAME   "Service01"
#define SDT_RETRANS_TIME   500
#define PAT_RETRANS_TIME   100
#define PCR_RETRANS_TIME   20

Typedefs

typedef struct MpegTSSection MpegTSSection
typedef struct MpegTSService MpegTSService
typedef struct MpegTSWrite MpegTSWrite
typedef struct MpegTSWriteStream MpegTSWriteStream

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 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 MpegTSServicempegts_add_service (MpegTSWrite *ts, int sid, const char *provider_name, const char *name)
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)
static int64_t get_pcr (const MpegTSWrite *ts, AVIOContext *pb)
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)
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 DEFAULT_PES_HEADER_FREQ   16

Definition at line 82 of file mpegtsenc.c.

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

Definition at line 83 of file mpegtsenc.c.

#define DEFAULT_PROVIDER_NAME   "Libav"

Definition at line 199 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define DEFAULT_SERVICE_NAME   "Service01"

Definition at line 200 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define PAT_RETRANS_TIME   100

Definition at line 204 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define PCR_RETRANS_TIME   20

Definition at line 205 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define PCR_TIME_BASE   27000000

Definition at line 33 of file mpegtsenc.c.

Referenced by get_pcr(), and mpegts_write_header().

#define SDT_RETRANS_TIME   500

Definition at line 203 of file mpegtsenc.c.

Referenced by mpegts_write_header().

#define SECTION_LENGTH   1020

Definition at line 111 of file mpegtsenc.c.

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

Typedef Documentation

typedef struct MpegTSSection MpegTSSection
typedef struct MpegTSService MpegTSService
typedef struct MpegTSWrite MpegTSWrite

Function Documentation

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

Definition at line 754 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

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

Definition at line 663 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), and mpegts_write_pes().

static uint8_t* get_ts_payload_start ( uint8_t *  pkt)
static

Definition at line 762 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

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

Definition at line 447 of file mpegtsenc.c.

Referenced by mpegts_write_header().

static void mpegts_insert_null_packet ( AVFormatContext s)
static

Definition at line 684 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static void mpegts_insert_pcr_only ( AVFormatContext s,
AVStream st 
)
static

Definition at line 699 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

static int mpegts_write_end ( AVFormatContext s)
static

Definition at line 1079 of file mpegtsenc.c.

static int mpegts_write_header ( AVFormatContext s)
static

Definition at line 472 of file mpegtsenc.c.

static int mpegts_write_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 961 of file mpegtsenc.c.

static void mpegts_write_pat ( AVFormatContext s)
static

Definition at line 220 of file mpegtsenc.c.

Referenced by retransmit_si_info().

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 775 of file mpegtsenc.c.

Referenced by mpegts_write_end(), and mpegts_write_packet().

static void mpegts_write_pmt ( AVFormatContext s,
MpegTSService service 
)
static

Definition at line 237 of file mpegtsenc.c.

Referenced by retransmit_si_info().

static void mpegts_write_sdt ( AVFormatContext s)
static

Definition at line 409 of file mpegtsenc.c.

Referenced by retransmit_si_info().

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

Definition at line 114 of file mpegtsenc.c.

Referenced by 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 169 of file mpegtsenc.c.

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

static void put16 ( uint8_t **  q_ptr,
int  val 
)
inlinestatic
static void putstr8 ( uint8_t **  q_ptr,
const char *  str 
)
static

Definition at line 393 of file mpegtsenc.c.

Referenced by mpegts_write_sdt().

static void retransmit_si_info ( AVFormatContext s)
static

Definition at line 645 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

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

Definition at line 466 of file mpegtsenc.c.

Referenced by mpegts_write_header().

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

Definition at line 738 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

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

Definition at line 669 of file mpegtsenc.c.

Referenced by mpegts_insert_pcr_only(), and mpegts_write_pes().

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

Definition at line 723 of file mpegtsenc.c.

Referenced by mpegts_write_pes().

Variable Documentation

AVOutputFormat ff_mpegts_muxer
Initial value:
{
.name = "mpegts",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-2 transport stream format"),
.mime_type = "video/x-mpegts",
.extensions = "ts,m2t",
.priv_data_size = sizeof(MpegTSWrite),
.audio_codec = CODEC_ID_MP2,
.video_codec = CODEC_ID_MPEG2VIDEO,
.priv_class = &mpegts_muxer_class,
}

Definition at line 1112 of file mpegtsenc.c.

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

Definition at line 102 of file mpegtsenc.c.

const AVOption options[]
static
Initial value:
{
{ "mpegts_transport_stream_id", "Set transport_stream_id field.",
0x42, AV_OPT_TYPE_INT, {.dbl = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_original_network_id", "Set original_network_id field.",
0x42, AV_OPT_TYPE_INT, {.dbl = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_service_id", "Set service_id field.",
0x42, AV_OPT_TYPE_INT, {.dbl = 0x0001 }, 0x0001, 0xffff, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_pmt_start_pid", "Set the first pid of the PMT.",
0x42, AV_OPT_TYPE_INT, {.dbl = 0x1000 }, 0x1000, 0x1f00, AV_OPT_FLAG_ENCODING_PARAM},
{ "mpegts_start_pid", "Set the first pid.",
0x42, AV_OPT_TYPE_INT, {.dbl = 0x0100 }, 0x0100, 0x0f00, AV_OPT_FLAG_ENCODING_PARAM},
{ "muxrate", NULL, 0x42, AV_OPT_TYPE_INT, {1}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM},
{ "pes_payload_size", "Minimum PES packet payload in bytes",
{ NULL },
}

Definition at line 85 of file mpegtsenc.c.