FFmpeg
Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
mpegts.c File Reference
#include "config_components.h"
#include "libavutil/buffer.h"
#include "libavutil/common.h"
#include "libavutil/crc.h"
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/log.h"
#include "libavutil/dict.h"
#include "libavutil/mathematics.h"
#include "libavutil/opt.h"
#include "libavutil/avassert.h"
#include "libavutil/dovi_meta.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/bytestream.h"
#include "libavcodec/get_bits.h"
#include "libavcodec/opus.h"
#include "avformat.h"
#include "mpegts.h"
#include "internal.h"
#include "avio_internal.h"
#include "demux.h"
#include "mpeg.h"
#include "isom.h"

Go to the source code of this file.

Data Structures

struct  MpegTSPESFilter
 
struct  MpegTSSectionFilter
 
struct  MpegTSFilter
 
struct  Stream
 
struct  Program
 
struct  MpegTSContext
 
struct  PESContext
 
struct  SectionHeader
 
struct  StreamType
 
struct  MP4DescrParseContext
 

Macros

#define MAX_RESYNC_SIZE   65536
 
#define MAX_MP4_DESCR_COUNT   16
 
#define MOD_UNLIKELY(modulus, dividend, divisor, prev_dividend)
 
#define PROBE_PACKET_MAX_BUF   8192
 
#define PROBE_PACKET_MARGIN   5
 
#define MAX_STREAMS_PER_PROGRAM   128
 
#define MAX_PIDS_PER_PROGRAM   (MAX_STREAMS_PER_PROGRAM + 2)
 
#define MPEGTS_OPTIONS   { "resync_size", "set size limit for looking up a new synchronization", offsetof(MpegTSContext, resync_size), AV_OPT_TYPE_INT, { .i64 = MAX_RESYNC_SIZE}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }
 
#define PES_START_SIZE   6
 
#define PES_HEADER_SIZE   9
 
#define MAX_PES_HEADER_SIZE   (9 + 255)
 
#define MAX_LEVEL   4
 
#define R8_CHECK_CLIP_MAX(dst, maxv)
 
#define CHECK_COUNT   10
 
#define CHECK_BLOCK   100
 
#define MAX_PACKET_READAHEAD   ((128 * 1024) / 188)
 

Typedefs

typedef int PESCallback(MpegTSFilter *f, const uint8_t *buf, int len, int is_start, int64_t pos)
 
typedef void SectionCallback(MpegTSFilter *f, const uint8_t *buf, int len)
 
typedef void SetServiceCallback(void *opaque, int ret)
 

Enumerations

enum  MpegTSFilterType { MPEGTS_PES, MPEGTS_SECTION, MPEGTS_PCR }
 
enum  MpegTSState {
  MPEGTS_HEADER = 0, MPEGTS_PESHEADER, MPEGTS_PESHEADER_FILL, MPEGTS_PAYLOAD,
  MPEGTS_SKIP
}
 

Functions

static struct Programget_program (MpegTSContext *ts, unsigned int programid)
 
static void clear_avprogram (MpegTSContext *ts, unsigned int programid)
 
static void clear_program (struct Program *p)
 
static void clear_programs (MpegTSContext *ts)
 
static struct Programadd_program (MpegTSContext *ts, unsigned int programid)
 
static void add_pid_to_program (struct Program *p, unsigned int pid)
 
static void update_av_program_info (AVFormatContext *s, unsigned int programid, unsigned int pid, int version)
 
static int discard_pid (MpegTSContext *ts, unsigned int pid)
 discard_pid() decides if the pid is to be discarded according to caller's programs selection More...
 
static void write_section_data (MpegTSContext *ts, MpegTSFilter *tss1, const uint8_t *buf, int buf_size, int is_start)
 Assemble PES packets out of TS packets, and then call the "section_cb" function when they are complete. More...
 
static MpegTSFiltermpegts_open_filter (MpegTSContext *ts, unsigned int pid, enum MpegTSFilterType type)
 
static MpegTSFiltermpegts_open_section_filter (MpegTSContext *ts, unsigned int pid, SectionCallback *section_cb, void *opaque, int check_crc)
 
static MpegTSFiltermpegts_open_pes_filter (MpegTSContext *ts, unsigned int pid, PESCallback *pes_cb, void *opaque)
 
static MpegTSFiltermpegts_open_pcr_filter (MpegTSContext *ts, unsigned int pid)
 
static void mpegts_close_filter (MpegTSContext *ts, MpegTSFilter *filter)
 
static int analyze (const uint8_t *buf, int size, int packet_size, int probe)
 
static int get_packet_size (AVFormatContext *s)
 
static int skip_identical (const SectionHeader *h, MpegTSSectionFilter *tssf)
 
static int get8 (const uint8_t **pp, const uint8_t *p_end)
 
static int get16 (const uint8_t **pp, const uint8_t *p_end)
 
static char * getstr8 (const uint8_t **pp, const uint8_t *p_end)
 
static int parse_section_header (SectionHeader *h, const uint8_t **pp, const uint8_t *p_end)
 
static void mpegts_find_stream_type (AVStream *st, uint32_t stream_type, const StreamType *types)
 
static int mpegts_set_stream_info (AVStream *st, PESContext *pes, uint32_t stream_type, uint32_t prog_reg_desc)
 
static void reset_pes_packet_state (PESContext *pes)
 
static void new_data_packet (const uint8_t *buffer, int len, AVPacket *pkt)
 
static int new_pes_packet (PESContext *pes, AVPacket *pkt)
 
static uint64_t get_ts64 (GetBitContext *gb, int bits)
 
static int read_sl_header (PESContext *pes, SLConfigDescr *sl, const uint8_t *buf, int buf_size)
 
static AVBufferRefbuffer_pool_get (MpegTSContext *ts, int size)
 
static int mpegts_push_data (MpegTSFilter *filter, const uint8_t *buf, int buf_size, int is_start, int64_t pos)
 
static PESContextadd_pes_stream (MpegTSContext *ts, int pid, int pcr_pid)
 
static int init_MP4DescrParseContext (MP4DescrParseContext *d, AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int max_descr_count)
 
static void update_offsets (AVIOContext *pb, int64_t *off, int *len)
 
static int parse_mp4_descr (MP4DescrParseContext *d, int64_t off, int len, int target_tag)
 
static int parse_mp4_descr_arr (MP4DescrParseContext *d, int64_t off, int len)
 
static int parse_MP4IODescrTag (MP4DescrParseContext *d, int64_t off, int len)
 
static int parse_MP4ODescrTag (MP4DescrParseContext *d, int64_t off, int len)
 
static int parse_MP4ESDescrTag (MP4DescrParseContext *d, int64_t off, int len)
 
static int parse_MP4DecConfigDescrTag (MP4DescrParseContext *d, int64_t off, int len)
 
static int parse_MP4SLDescrTag (MP4DescrParseContext *d, int64_t off, int len)
 
static int mp4_read_iods (AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int *descr_count, int max_descr_count)
 
static int mp4_read_od (AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int *descr_count, int max_descr_count)
 
static void m4sl_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
static void scte_data_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
int ff_parse_mpeg2_descriptor (AVFormatContext *fc, AVStream *st, int stream_type, const uint8_t **pp, const uint8_t *desc_list_end, Mp4Descr *mp4_descr, int mp4_descr_count, int pid, MpegTSContext *ts)
 Parse an MPEG-2 descriptor. More...
 
static AVStreamfind_matching_stream (MpegTSContext *ts, int pid, unsigned int programid, int stream_identifier, int pmt_stream_idx, struct Program *p)
 
static int parse_stream_identifier_desc (const uint8_t *p, const uint8_t *p_end)
 
static int is_pes_stream (int stream_type, uint32_t prog_reg_desc)
 
static void pmt_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
static void pat_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
static void eit_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
static void sdt_cb (MpegTSFilter *filter, const uint8_t *section, int section_len)
 
static int parse_pcr (int64_t *ppcr_high, int *ppcr_low, const uint8_t *packet)
 
static int handle_packet (MpegTSContext *ts, const uint8_t *packet, int64_t pos)
 
static int mpegts_resync (AVFormatContext *s, int seekback, const uint8_t *current_packet)
 
static int read_packet (AVFormatContext *s, uint8_t *buf, int raw_packet_size, const uint8_t **data)
 
static void finished_reading_packet (AVFormatContext *s, int raw_packet_size)
 
static int handle_packets (MpegTSContext *ts, int64_t nb_packets)
 
static int mpegts_probe (const AVProbeData *p)
 
static void seek_back (AVFormatContext *s, AVIOContext *pb, int64_t pos)
 
static int mpegts_read_header (AVFormatContext *s)
 
static int mpegts_raw_read_packet (AVFormatContext *s, AVPacket *pkt)
 
static int mpegts_read_packet (AVFormatContext *s, AVPacket *pkt)
 
static void mpegts_free (MpegTSContext *ts)
 
static int mpegts_read_close (AVFormatContext *s)
 
static av_unused int64_t mpegts_get_pcr (AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
 
static int64_t mpegts_get_dts (AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
 
MpegTSContextavpriv_mpegts_parse_open (AVFormatContext *s)
 
int avpriv_mpegts_parse_packet (MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len)
 
void avpriv_mpegts_parse_close (MpegTSContext *ts)
 

Variables

static const AVOption options []
 
static const AVClass mpegts_class
 
static const AVOption raw_options []
 
static const AVClass mpegtsraw_class
 
const AVInputFormat ff_mpegts_demuxer
 
static const StreamType ISO_types []
 
static const StreamType HDMV_types []
 
static const StreamType SCTE_types []
 
static const StreamType MISC_types []
 
static const StreamType HLS_SAMPLE_ENC_types []
 
static const StreamType REGD_types []
 
static const StreamType METADATA_types []
 
static const StreamType DESC_types []
 
static const uint8_t opus_coupled_stream_cnt [9]
 
static const uint8_t opus_stream_cnt [9]
 
static const uint8_t opus_channel_map [8][8]
 
const AVInputFormat ff_mpegtsraw_demuxer
 

Macro Definition Documentation

◆ MAX_RESYNC_SIZE

#define MAX_RESYNC_SIZE   65536

Definition at line 52 of file mpegts.c.

◆ MAX_MP4_DESCR_COUNT

#define MAX_MP4_DESCR_COUNT   16

Definition at line 54 of file mpegts.c.

◆ MOD_UNLIKELY

#define MOD_UNLIKELY (   modulus,
  dividend,
  divisor,
  prev_dividend 
)
Value:
do { \
if ((prev_dividend) == 0 || (dividend) - (prev_dividend) != (divisor)) \
(modulus) = (dividend) % (divisor); \
(prev_dividend) = (dividend); \
} while (0)

Definition at line 56 of file mpegts.c.

◆ PROBE_PACKET_MAX_BUF

#define PROBE_PACKET_MAX_BUF   8192

Definition at line 63 of file mpegts.c.

◆ PROBE_PACKET_MARGIN

#define PROBE_PACKET_MARGIN   5

Definition at line 64 of file mpegts.c.

◆ MAX_STREAMS_PER_PROGRAM

#define MAX_STREAMS_PER_PROGRAM   128

Definition at line 117 of file mpegts.c.

◆ MAX_PIDS_PER_PROGRAM

#define MAX_PIDS_PER_PROGRAM   (MAX_STREAMS_PER_PROGRAM + 2)

Definition at line 118 of file mpegts.c.

◆ MPEGTS_OPTIONS

#define MPEGTS_OPTIONS   { "resync_size", "set size limit for looking up a new synchronization", offsetof(MpegTSContext, resync_size), AV_OPT_TYPE_INT, { .i64 = MAX_RESYNC_SIZE}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM }

Definition at line 185 of file mpegts.c.

◆ PES_START_SIZE

#define PES_START_SIZE   6

Definition at line 246 of file mpegts.c.

◆ PES_HEADER_SIZE

#define PES_HEADER_SIZE   9

Definition at line 247 of file mpegts.c.

◆ MAX_PES_HEADER_SIZE

#define MAX_PES_HEADER_SIZE   (9 + 255)

Definition at line 248 of file mpegts.c.

◆ MAX_LEVEL

#define MAX_LEVEL   4

Definition at line 1452 of file mpegts.c.

◆ R8_CHECK_CLIP_MAX

#define R8_CHECK_CLIP_MAX (   dst,
  maxv 
)
Value:
do { \
descr->sl.dst = avio_r8(pb); \
if (descr->sl.dst > maxv) { \
descr->sl.dst = maxv; \
} \
} while (0)

◆ CHECK_COUNT

#define CHECK_COUNT   10

◆ CHECK_BLOCK

#define CHECK_BLOCK   100

◆ MAX_PACKET_READAHEAD

#define MAX_PACKET_READAHEAD   ((128 * 1024) / 188)

Definition at line 3200 of file mpegts.c.

Typedef Documentation

◆ PESCallback

typedef int PESCallback(MpegTSFilter *f, const uint8_t *buf, int len, int is_start, int64_t pos)

Definition at line 74 of file mpegts.c.

◆ SectionCallback

typedef void SectionCallback(MpegTSFilter *f, const uint8_t *buf, int len)

Definition at line 82 of file mpegts.c.

◆ SetServiceCallback

typedef void SetServiceCallback(void *opaque, int ret)

Definition at line 84 of file mpegts.c.

Enumeration Type Documentation

◆ MpegTSFilterType

Enumerator
MPEGTS_PES 
MPEGTS_SECTION 
MPEGTS_PCR 

Definition at line 66 of file mpegts.c.

◆ MpegTSState

Enumerator
MPEGTS_HEADER 
MPEGTS_PESHEADER 
MPEGTS_PESHEADER_FILL 
MPEGTS_PAYLOAD 
MPEGTS_SKIP 

Definition at line 237 of file mpegts.c.

Function Documentation

◆ get_program()

static struct Program* get_program ( MpegTSContext ts,
unsigned int  programid 
)
static

Definition at line 276 of file mpegts.c.

Referenced by add_program(), and pmt_cb().

◆ clear_avprogram()

static void clear_avprogram ( MpegTSContext ts,
unsigned int  programid 
)
static

Definition at line 287 of file mpegts.c.

Referenced by pat_cb(), and pmt_cb().

◆ clear_program()

static void clear_program ( struct Program p)
static

Definition at line 302 of file mpegts.c.

Referenced by add_program(), pat_cb(), and pmt_cb().

◆ clear_programs()

static void clear_programs ( MpegTSContext ts)
static

Definition at line 311 of file mpegts.c.

Referenced by mpegts_free().

◆ add_program()

static struct Program* add_program ( MpegTSContext ts,
unsigned int  programid 
)
static

Definition at line 317 of file mpegts.c.

Referenced by pat_cb().

◆ add_pid_to_program()

static void add_pid_to_program ( struct Program p,
unsigned int  pid 
)
static

Definition at line 333 of file mpegts.c.

Referenced by pat_cb(), and pmt_cb().

◆ update_av_program_info()

static void update_av_program_info ( AVFormatContext s,
unsigned int  programid,
unsigned int  pid,
int  version 
)
static

Definition at line 349 of file mpegts.c.

Referenced by pmt_cb().

◆ discard_pid()

static int discard_pid ( MpegTSContext ts,
unsigned int  pid 
)
static

discard_pid() decides if the pid is to be discarded according to caller's programs selection

Parameters
ts: - TS context
pid: - pid
Returns
1 if the pid is only comprised in programs that have .discard=AVDISCARD_ALL 0 otherwise

Definition at line 379 of file mpegts.c.

Referenced by handle_packet().

◆ write_section_data()

static void write_section_data ( MpegTSContext ts,
MpegTSFilter tss1,
const uint8_t *  buf,
int  buf_size,
int  is_start 
)
static

Assemble PES packets out of TS packets, and then call the "section_cb" function when they are complete.

Definition at line 420 of file mpegts.c.

Referenced by handle_packet().

◆ mpegts_open_filter()

static MpegTSFilter* mpegts_open_filter ( MpegTSContext ts,
unsigned int  pid,
enum MpegTSFilterType  type 
)
static

◆ mpegts_open_section_filter()

static MpegTSFilter* mpegts_open_section_filter ( MpegTSContext ts,
unsigned int  pid,
SectionCallback section_cb,
void *  opaque,
int  check_crc 
)
static

◆ mpegts_open_pes_filter()

static MpegTSFilter* mpegts_open_pes_filter ( MpegTSContext ts,
unsigned int  pid,
PESCallback pes_cb,
void *  opaque 
)
static

Definition at line 537 of file mpegts.c.

Referenced by add_pes_stream().

◆ mpegts_open_pcr_filter()

static MpegTSFilter* mpegts_open_pcr_filter ( MpegTSContext ts,
unsigned int  pid 
)
static

Definition at line 553 of file mpegts.c.

Referenced by pmt_cb().

◆ mpegts_close_filter()

static void mpegts_close_filter ( MpegTSContext ts,
MpegTSFilter filter 
)
static

Definition at line 558 of file mpegts.c.

Referenced by mpegts_free(), pat_cb(), and pmt_cb().

◆ analyze()

static int analyze ( const uint8_t *  buf,
int  size,
int  packet_size,
int  probe 
)
static

Definition at line 579 of file mpegts.c.

Referenced by get_packet_size(), and mpegts_probe().

◆ get_packet_size()

static int get_packet_size ( AVFormatContext s)
static

Definition at line 608 of file mpegts.c.

Referenced by mpegts_read_header(), and mpegts_resync().

◆ skip_identical()

static int skip_identical ( const SectionHeader h,
MpegTSSectionFilter tssf 
)
static

Definition at line 655 of file mpegts.c.

Referenced by m4sl_cb(), pat_cb(), pmt_cb(), and sdt_cb().

◆ get8()

static int get8 ( const uint8_t **  pp,
const uint8_t *  p_end 
)
inlinestatic

◆ get16()

static int get16 ( const uint8_t **  pp,
const uint8_t *  p_end 
)
inlinestatic

◆ getstr8()

static char* getstr8 ( const uint8_t **  pp,
const uint8_t *  p_end 
)
static

Definition at line 694 of file mpegts.c.

Referenced by sdt_cb().

◆ parse_section_header()

static int parse_section_header ( SectionHeader h,
const uint8_t **  pp,
const uint8_t *  p_end 
)
static

Definition at line 761 of file mpegts.c.

Referenced by eit_cb(), m4sl_cb(), pat_cb(), pmt_cb(), and sdt_cb().

◆ mpegts_find_stream_type()

static void mpegts_find_stream_type ( AVStream st,
uint32_t  stream_type,
const StreamType types 
)
static

Definition at line 891 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor(), mpegts_set_stream_info(), and pmt_cb().

◆ mpegts_set_stream_info()

static int mpegts_set_stream_info ( AVStream st,
PESContext pes,
uint32_t  stream_type,
uint32_t  prog_reg_desc 
)
static

Definition at line 909 of file mpegts.c.

Referenced by mpegts_push_data(), and pmt_cb().

◆ reset_pes_packet_state()

static void reset_pes_packet_state ( PESContext pes)
static

Definition at line 993 of file mpegts.c.

Referenced by mpegts_push_data(), and new_pes_packet().

◆ new_data_packet()

static void new_data_packet ( const uint8_t *  buffer,
int  len,
AVPacket pkt 
)
static

Definition at line 1002 of file mpegts.c.

Referenced by eit_cb(), and scte_data_cb().

◆ new_pes_packet()

static int new_pes_packet ( PESContext pes,
AVPacket pkt 
)
static

Definition at line 1009 of file mpegts.c.

Referenced by mpegts_push_data(), and mpegts_read_packet().

◆ get_ts64()

static uint64_t get_ts64 ( GetBitContext gb,
int  bits 
)
static

Definition at line 1049 of file mpegts.c.

Referenced by read_sl_header().

◆ read_sl_header()

static int read_sl_header ( PESContext pes,
SLConfigDescr sl,
const uint8_t *  buf,
int  buf_size 
)
static

Definition at line 1056 of file mpegts.c.

Referenced by mpegts_push_data().

◆ buffer_pool_get()

static AVBufferRef* buffer_pool_get ( MpegTSContext ts,
int  size 
)
static

Definition at line 1127 of file mpegts.c.

Referenced by mpegts_push_data().

◆ mpegts_push_data()

static int mpegts_push_data ( MpegTSFilter filter,
const uint8_t *  buf,
int  buf_size,
int  is_start,
int64_t  pos 
)
static

Definition at line 1140 of file mpegts.c.

Referenced by add_pes_stream().

◆ add_pes_stream()

static PESContext* add_pes_stream ( MpegTSContext ts,
int  pid,
int  pcr_pid 
)
static

Definition at line 1428 of file mpegts.c.

Referenced by handle_packet(), and pmt_cb().

◆ init_MP4DescrParseContext()

static int init_MP4DescrParseContext ( MP4DescrParseContext d,
AVFormatContext s,
const uint8_t *  buf,
unsigned  size,
Mp4Descr descr,
int  max_descr_count 
)
static

Definition at line 1464 of file mpegts.c.

Referenced by mp4_read_iods(), and mp4_read_od().

◆ update_offsets()

static void update_offsets ( AVIOContext pb,
int64_t *  off,
int len 
)
static

◆ parse_mp4_descr()

static int parse_mp4_descr ( MP4DescrParseContext d,
int64_t  off,
int  len,
int  target_tag 
)
static

Definition at line 1611 of file mpegts.c.

Referenced by mp4_read_iods(), parse_mp4_descr_arr(), and parse_MP4ESDescrTag().

◆ parse_mp4_descr_arr()

static int parse_mp4_descr_arr ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1494 of file mpegts.c.

Referenced by mp4_read_od(), parse_MP4IODescrTag(), and parse_MP4ODescrTag().

◆ parse_MP4IODescrTag()

static int parse_MP4IODescrTag ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1505 of file mpegts.c.

Referenced by parse_mp4_descr().

◆ parse_MP4ODescrTag()

static int parse_MP4ODescrTag ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1518 of file mpegts.c.

Referenced by parse_mp4_descr().

◆ parse_MP4ESDescrTag()

static int parse_MP4ESDescrTag ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1532 of file mpegts.c.

Referenced by parse_mp4_descr().

◆ parse_MP4DecConfigDescrTag()

static int parse_MP4DecConfigDescrTag ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1554 of file mpegts.c.

Referenced by parse_mp4_descr().

◆ parse_MP4SLDescrTag()

static int parse_MP4SLDescrTag ( MP4DescrParseContext d,
int64_t  off,
int  len 
)
static

Definition at line 1568 of file mpegts.c.

Referenced by parse_mp4_descr().

◆ mp4_read_iods()

static int mp4_read_iods ( AVFormatContext s,
const uint8_t *  buf,
unsigned  size,
Mp4Descr descr,
int descr_count,
int  max_descr_count 
)
static

Definition at line 1665 of file mpegts.c.

Referenced by pmt_cb().

◆ mp4_read_od()

static int mp4_read_od ( AVFormatContext s,
const uint8_t *  buf,
unsigned  size,
Mp4Descr descr,
int descr_count,
int  max_descr_count 
)
static

Definition at line 1681 of file mpegts.c.

Referenced by m4sl_cb().

◆ m4sl_cb()

static void m4sl_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

Definition at line 1697 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ scte_data_cb()

static void scte_data_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

In case we receive an SCTE-35 packet before mpegts context is fully initialized.

Definition at line 1762 of file mpegts.c.

Referenced by pmt_cb().

◆ ff_parse_mpeg2_descriptor()

int ff_parse_mpeg2_descriptor ( AVFormatContext fc,
AVStream st,
int  stream_type,
const uint8_t **  pp,
const uint8_t *  desc_list_end,
Mp4Descr mp4_descr,
int  mp4_descr_count,
int  pid,
MpegTSContext ts 
)

Parse an MPEG-2 descriptor.

Parameters
[in]fcFormat context (used for logging only)
stStream
stream_typeSTREAM_TYPE_xxx
ppDescriptor buffer pointer
desc_list_endEnd of buffer
Returns
<0 to stop processing

Definition at line 1810 of file mpegts.c.

Referenced by parse_chunks(), and pmt_cb().

◆ find_matching_stream()

static AVStream* find_matching_stream ( MpegTSContext ts,
int  pid,
unsigned int  programid,
int  stream_identifier,
int  pmt_stream_idx,
struct Program p 
)
static

Definition at line 2243 of file mpegts.c.

Referenced by pmt_cb().

◆ parse_stream_identifier_desc()

static int parse_stream_identifier_desc ( const uint8_t *  p,
const uint8_t *  p_end 
)
static

Definition at line 2269 of file mpegts.c.

Referenced by pmt_cb().

◆ is_pes_stream()

static int is_pes_stream ( int  stream_type,
uint32_t  prog_reg_desc 
)
static

Definition at line 2305 of file mpegts.c.

Referenced by pmt_cb().

◆ pmt_cb()

static void pmt_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

Definition at line 2311 of file mpegts.c.

Referenced by pat_cb().

◆ pat_cb()

static void pat_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

Definition at line 2531 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

◆ eit_cb()

static void eit_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

Service_id 0xFFFF is reserved, it indicates that the current EIT table is scrambled.

In case we receive an EPG packet before mpegts context is fully initialized.

Definition at line 2618 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

◆ sdt_cb()

static void sdt_cb ( MpegTSFilter filter,
const uint8_t *  section,
int  section_len 
)
static

Definition at line 2672 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

◆ parse_pcr()

static int parse_pcr ( int64_t *  ppcr_high,
int ppcr_low,
const uint8_t *  packet 
)
static

◆ handle_packet()

static int handle_packet ( MpegTSContext ts,
const uint8_t *  packet,
int64_t  pos 
)
static

Definition at line 2762 of file mpegts.c.

Referenced by avpriv_mpegts_parse_packet(), and handle_packets().

◆ mpegts_resync()

static int mpegts_resync ( AVFormatContext s,
int  seekback,
const uint8_t *  current_packet 
)
static

Definition at line 2892 of file mpegts.c.

Referenced by mpegts_get_pcr(), and read_packet().

◆ read_packet()

static int read_packet ( AVFormatContext s,
uint8_t *  buf,
int  raw_packet_size,
const uint8_t **  data 
)
static

Definition at line 2935 of file mpegts.c.

Referenced by handle_packets(), mpegts_raw_read_packet(), and mpegts_read_header().

◆ finished_reading_packet()

static void finished_reading_packet ( AVFormatContext s,
int  raw_packet_size 
)
static

Definition at line 2960 of file mpegts.c.

Referenced by handle_packets(), mpegts_raw_read_packet(), and mpegts_read_header().

◆ handle_packets()

static int handle_packets ( MpegTSContext ts,
int64_t  nb_packets 
)
static

Definition at line 2968 of file mpegts.c.

Referenced by mpegts_read_header(), and mpegts_read_packet().

◆ mpegts_probe()

static int mpegts_probe ( const AVProbeData p)
static

Definition at line 3021 of file mpegts.c.

◆ seek_back()

static void seek_back ( AVFormatContext s,
AVIOContext pb,
int64_t  pos 
)
static

Definition at line 3090 of file mpegts.c.

Referenced by dhav_read_header(), get_duration(), and mpegts_read_header().

◆ mpegts_read_header()

static int mpegts_read_header ( AVFormatContext s)
static

Definition at line 3099 of file mpegts.c.

◆ mpegts_raw_read_packet()

static int mpegts_raw_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 3202 of file mpegts.c.

◆ mpegts_read_packet()

static int mpegts_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 3249 of file mpegts.c.

◆ mpegts_free()

static void mpegts_free ( MpegTSContext ts)
static

Definition at line 3279 of file mpegts.c.

Referenced by avpriv_mpegts_parse_close(), and mpegts_read_close().

◆ mpegts_read_close()

static int mpegts_read_close ( AVFormatContext s)
static

Definition at line 3293 of file mpegts.c.

◆ mpegts_get_pcr()

static av_unused int64_t mpegts_get_pcr ( AVFormatContext s,
int  stream_index,
int64_t *  ppos,
int64_t  pos_limit 
)
static

Definition at line 3300 of file mpegts.c.

◆ mpegts_get_dts()

static int64_t mpegts_get_dts ( AVFormatContext s,
int  stream_index,
int64_t *  ppos,
int64_t  pos_limit 
)
static

Definition at line 3334 of file mpegts.c.

◆ avpriv_mpegts_parse_open()

MpegTSContext* avpriv_mpegts_parse_open ( AVFormatContext s)

Definition at line 3375 of file mpegts.c.

Referenced by iec61883_read_header(), and mpegts_init().

◆ avpriv_mpegts_parse_packet()

int avpriv_mpegts_parse_packet ( MpegTSContext ts,
AVPacket pkt,
const uint8_t *  buf,
int  len 
)

Definition at line 3397 of file mpegts.c.

Referenced by iec61883_parse_queue_hdv(), and mpegts_handle_packet().

◆ avpriv_mpegts_parse_close()

void avpriv_mpegts_parse_close ( MpegTSContext ts)

Definition at line 3422 of file mpegts.c.

Referenced by ff_rtsp_close_streams(), iec61883_close(), and mpegts_close_context().

Variable Documentation

◆ options

const AVOption options[]
static
Initial value:
= {
{"fix_teletext_pts", "try to fix pts values of dvb teletext streams", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = 1}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
{"ts_packetsize", "output option carrying the raw packet size", 0x42, AV_OPT_TYPE_INT,
{"scan_all_pmts", "scan and combine all PMTs", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM },
{"skip_unknown_pmt", "skip PMTs for programs not advertised in the PAT", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
{"merge_pmt_versions", "re-use streams when PMT's version/pids change", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
{"skip_changes", "skip changing / adding streams / programs", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = 0}, 0, 1, 0 },
{"skip_clear", "skip clearing programs", 0x42, AV_OPT_TYPE_BOOL,
{.i64 = 0}, 0, 1, 0 },
{"max_packet_size", "maximum size of emitted packet", 0x42, AV_OPT_TYPE_INT,
{.i64 = 204800}, 1, INT_MAX/2, AV_OPT_FLAG_DECODING_PARAM },
{ NULL },
}

Definition at line 188 of file mpegts.c.

◆ mpegts_class

const AVClass mpegts_class
static
Initial value:
= {
.class_name = "mpegts demuxer",
.item_name = av_default_item_name,
.option = options,
}

Definition at line 209 of file mpegts.c.

◆ raw_options

const AVOption raw_options[]
static
Initial value:
= {
{ "compute_pcr", "compute exact PCR for each transport stream packet",
{ .i64 = 0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
{ "ts_packetsize", "output option carrying the raw packet size",
{ .i64 = 0 }, 0, 0,
{ NULL },
}

Definition at line 216 of file mpegts.c.

◆ mpegtsraw_class

const AVClass mpegtsraw_class
static
Initial value:
= {
.class_name = "mpegtsraw demuxer",
.item_name = av_default_item_name,
.option = raw_options,
}

Definition at line 228 of file mpegts.c.

◆ ff_mpegts_demuxer

const AVInputFormat ff_mpegts_demuxer
Initial value:
= {
.name = "mpegts",
.long_name = NULL_IF_CONFIG_SMALL("MPEG-TS (MPEG-2 Transport Stream)"),
.priv_data_size = sizeof(MpegTSContext),
.priv_class = &mpegts_class,
}

Definition at line 3428 of file mpegts.c.

Referenced by mpegts_read_header().

◆ ISO_types

const StreamType ISO_types[]
static

◆ HDMV_types

const StreamType HDMV_types[]
static

◆ SCTE_types

const StreamType SCTE_types[]
static
Initial value:
= {
{ 0 },
}

Definition at line 838 of file mpegts.c.

Referenced by pmt_cb().

◆ MISC_types

const StreamType MISC_types[]
static
Initial value:

Definition at line 844 of file mpegts.c.

Referenced by mpegts_set_stream_info().

◆ HLS_SAMPLE_ENC_types

const StreamType HLS_SAMPLE_ENC_types[]
static
Initial value:

Definition at line 851 of file mpegts.c.

Referenced by mpegts_set_stream_info().

◆ REGD_types

const StreamType REGD_types[]
static
Initial value:
= {
{ MKTAG('d', 'r', 'a', 'c'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_DIRAC },
{ MKTAG('A', 'C', '-', '3'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AC3 },
{ MKTAG('B', 'S', 'S', 'D'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_S302M },
{ MKTAG('D', 'T', 'S', '1'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_DTS },
{ MKTAG('D', 'T', 'S', '2'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_DTS },
{ MKTAG('D', 'T', 'S', '3'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_DTS },
{ MKTAG('E', 'A', 'C', '3'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_EAC3 },
{ MKTAG('H', 'E', 'V', 'C'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_HEVC },
{ MKTAG('K', 'L', 'V', 'A'), AVMEDIA_TYPE_DATA, AV_CODEC_ID_SMPTE_KLV },
{ MKTAG('I', 'D', '3', ' '), AVMEDIA_TYPE_DATA, AV_CODEC_ID_TIMED_ID3 },
{ MKTAG('V', 'C', '-', '1'), AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_VC1 },
{ MKTAG('O', 'p', 'u', 's'), AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_OPUS },
{ 0 },
}

Definition at line 859 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ METADATA_types

const StreamType METADATA_types[]
static
Initial value:
= {
{ 0 },
}

Definition at line 875 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ DESC_types

const StreamType DESC_types[]
static

◆ opus_coupled_stream_cnt

const uint8_t opus_coupled_stream_cnt[9]
static
Initial value:
= {
1, 0, 1, 1, 2, 2, 2, 3, 3
}

Definition at line 1791 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ opus_stream_cnt

const uint8_t opus_stream_cnt[9]
static
Initial value:
= {
1, 1, 1, 2, 2, 3, 4, 4, 5,
}

Definition at line 1795 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ opus_channel_map

const uint8_t opus_channel_map[8][8]
static
Initial value:
= {
{ 0 },
{ 0,1 },
{ 0,2,1 },
{ 0,1,2,3 },
{ 0,4,1,2,3 },
{ 0,4,1,2,3,5 },
{ 0,4,1,2,3,5,6 },
{ 0,6,1,2,3,4,5,7 },
}

Definition at line 1799 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

◆ ff_mpegtsraw_demuxer

const AVInputFormat ff_mpegtsraw_demuxer
Initial value:
= {
.name = "mpegtsraw",
.long_name = NULL_IF_CONFIG_SMALL("raw MPEG-TS (MPEG-2 Transport Stream)"),
.priv_data_size = sizeof(MpegTSContext),
.priv_class = &mpegtsraw_class,
}

Definition at line 3441 of file mpegts.c.

AVMEDIA_TYPE_SUBTITLE
@ AVMEDIA_TYPE_SUBTITLE
Definition: avutil.h:204
AV_CODEC_ID_AC3
@ AV_CODEC_ID_AC3
Definition: codec_id.h:438
AV_CODEC_ID_PCM_BLURAY
@ AV_CODEC_ID_PCM_BLURAY
Definition: codec_id.h:350
AV_OPT_FLAG_READONLY
#define AV_OPT_FLAG_READONLY
The option may not be set through the AVOptions API, only read.
Definition: opt.h:294
AVFMT_SHOW_IDS
#define AVFMT_SHOW_IDS
Show format stream IDs numbers.
Definition: avformat.h:479
AV_CODEC_ID_DIRAC
@ AV_CODEC_ID_DIRAC
Definition: codec_id.h:168
AV_CODEC_ID_MPEG4
@ AV_CODEC_ID_MPEG4
Definition: codec_id.h:64
AV_CODEC_ID_DVB_TELETEXT
@ AV_CODEC_ID_DVB_TELETEXT
Definition: codec_id.h:546
AV_CODEC_ID_AVS2
@ AV_CODEC_ID_AVS2
Definition: codec_id.h:246
AV_CODEC_ID_HDMV_PGS_SUBTITLE
@ AV_CODEC_ID_HDMV_PGS_SUBTITLE
Definition: codec_id.h:545
AV_CODEC_ID_TRUEHD
@ AV_CODEC_ID_TRUEHD
Definition: codec_id.h:479
mpegtsraw_class
static const AVClass mpegtsraw_class
Definition: mpegts.c:228
mpegts_read_close
static int mpegts_read_close(AVFormatContext *s)
Definition: mpegts.c:3293
mpegts_raw_read_packet
static int mpegts_raw_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: mpegts.c:3202
read_close
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:143
AV_CODEC_ID_MP3
@ AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:436
AV_CODEC_ID_DVB_SUBTITLE
@ AV_CODEC_ID_DVB_SUBTITLE
Definition: codec_id.h:540
MPEGTS_OPTIONS
#define MPEGTS_OPTIONS
Definition: mpegts.c:185
AV_CODEC_ID_S302M
@ AV_CODEC_ID_S302M
Definition: codec_id.h:352
mpegts_class
static const AVClass mpegts_class
Definition: mpegts.c:209
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
AVMEDIA_TYPE_DATA
@ AVMEDIA_TYPE_DATA
Opaque data information usually continuous.
Definition: avutil.h:203
AV_CODEC_ID_H264
@ AV_CODEC_ID_H264
Definition: codec_id.h:79
AV_CODEC_ID_AVS3
@ AV_CODEC_ID_AVS3
Definition: codec_id.h:248
LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
read_header
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:540
NULL
#define NULL
Definition: coverity.c:32
read_probe
static int read_probe(const AVProbeData *pd)
Definition: jvdec.c:55
AV_CODEC_ID_TIMED_ID3
@ AV_CODEC_ID_TIMED_ID3
Definition: codec_id.h:578
av_default_item_name
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:237
AV_CODEC_ID_SMPTE_KLV
@ AV_CODEC_ID_SMPTE_KLV
Definition: codec_id.h:576
AV_CODEC_ID_EAC3
@ AV_CODEC_ID_EAC3
Definition: codec_id.h:475
AV_CODEC_ID_AAC
@ AV_CODEC_ID_AAC
Definition: codec_id.h:437
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
AV_CODEC_ID_DTS
@ AV_CODEC_ID_DTS
Definition: codec_id.h:439
MpegTSContext
Definition: mpegts.c:130
mpegts_get_dts
static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
Definition: mpegts.c:3334
AV_CODEC_ID_OPUS
@ AV_CODEC_ID_OPUS
Definition: codec_id.h:495
mpegts_read_packet
static int mpegts_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: mpegts.c:3249
avio_r8
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:634
AV_CODEC_ID_CAVS
@ AV_CODEC_ID_CAVS
Definition: codec_id.h:139
AV_CODEC_ID_HEVC
@ AV_CODEC_ID_HEVC
Definition: codec_id.h:226
AV_OPT_FLAG_DECODING_PARAM
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:282
AV_CODEC_ID_VC1
@ AV_CODEC_ID_VC1
Definition: codec_id.h:122
AV_CODEC_ID_JPEG2000
@ AV_CODEC_ID_JPEG2000
Definition: codec_id.h:140
mpegts_probe
static int mpegts_probe(const AVProbeData *p)
Definition: mpegts.c:3021
AV_OPT_FLAG_EXPORT
#define AV_OPT_FLAG_EXPORT
The option is intended for exporting values to the caller.
Definition: opt.h:289
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AVFMT_TS_DISCONT
#define AVFMT_TS_DISCONT
Format allows timestamp discontinuities.
Definition: avformat.h:483
mpegts_read_header
static int mpegts_read_header(AVFormatContext *s)
Definition: mpegts.c:3099
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
raw_options
static const AVOption raw_options[]
Definition: mpegts.c:216
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
AV_CODEC_ID_AAC_LATM
@ AV_CODEC_ID_AAC_LATM
Definition: codec_id.h:484
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:61
AV_CODEC_ID_HDMV_TEXT_SUBTITLE
@ AV_CODEC_ID_HDMV_TEXT_SUBTITLE
Definition: codec_id.h:562
MKTAG
#define MKTAG(a, b, c, d)
Definition: macros.h:55
read_timestamp
static int64_t read_timestamp(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit, int64_t(*read_timestamp)(struct AVFormatContext *, int, int64_t *, int64_t))
Definition: seek.c:276
read_packet
static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size, const uint8_t **data)
Definition: mpegts.c:2935
AV_CODEC_ID_MPEG2VIDEO
@ AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: codec_id.h:54
options
static const AVOption options[]
Definition: mpegts.c:188
AV_CODEC_ID_SCTE_35
@ AV_CODEC_ID_SCTE_35
Contain timestamp estimated through PCR of program stream.
Definition: codec_id.h:570