FFmpeg
Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
mpegts.c File Reference
#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/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 "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_PES_PAYLOAD   200 * 1024
 
#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
 
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 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]
 
AVInputFormat ff_mpegtsraw_demuxer
 

Macro Definition Documentation

#define MAX_RESYNC_SIZE   65536

Definition at line 48 of file mpegts.c.

#define MAX_PES_PAYLOAD   200 * 1024

Definition at line 50 of file mpegts.c.

Referenced by buffer_pool_get(), mpegts_push_data(), and new_pes_packet().

#define MAX_MP4_DESCR_COUNT   16

Definition at line 52 of file mpegts.c.

Referenced by m4sl_cb(), and pmt_cb().

#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)
if(ret)

Definition at line 54 of file mpegts.c.

#define PROBE_PACKET_MAX_BUF   8192

Definition at line 61 of file mpegts.c.

Referenced by get_packet_size(), mpegts_read_header(), and mpegts_resync().

#define PROBE_PACKET_MARGIN   5

Definition at line 62 of file mpegts.c.

Referenced by get_packet_size().

#define MAX_STREAMS_PER_PROGRAM   128

Definition at line 115 of file mpegts.c.

Referenced by pmt_cb().

#define MAX_PIDS_PER_PROGRAM   (MAX_STREAMS_PER_PROGRAM + 2)

Definition at line 116 of file mpegts.c.

Referenced by add_pid_to_program().

#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 182 of file mpegts.c.

#define PES_START_SIZE   6

Definition at line 241 of file mpegts.c.

Referenced by mpegts_push_data(), and new_pes_packet().

#define PES_HEADER_SIZE   9

Definition at line 242 of file mpegts.c.

Referenced by mpegts_push_data().

#define MAX_PES_HEADER_SIZE   (9 + 255)

Definition at line 243 of file mpegts.c.

#define MAX_LEVEL   4

Definition at line 1427 of file mpegts.c.

Referenced by parse_mp4_descr().

#define R8_CHECK_CLIP_MAX (   dst,
  maxv 
)
Value:
do { \
descr->sl.dst = avio_r8(&d->pb); \
if (descr->sl.dst > maxv) { \
descr->sl.dst = maxv; \
} \
} while (0)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:628
if(ret)
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a it should return

Referenced by parse_MP4SLDescrTag().

#define CHECK_COUNT   10

Referenced by mpegts_probe().

#define CHECK_BLOCK   100

Referenced by mpegts_probe().

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

Definition at line 3163 of file mpegts.c.

Referenced by mpegts_raw_read_packet().

Typedef Documentation

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

Definition at line 72 of file mpegts.c.

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

Definition at line 80 of file mpegts.c.

typedef void SetServiceCallback(void *opaque, int ret)

Definition at line 82 of file mpegts.c.

Enumeration Type Documentation

Enumerator
MPEGTS_PES 
MPEGTS_SECTION 
MPEGTS_PCR 

Definition at line 64 of file mpegts.c.

Enumerator
MPEGTS_HEADER 
MPEGTS_PESHEADER 
MPEGTS_PESHEADER_FILL 
MPEGTS_PAYLOAD 
MPEGTS_SKIP 

Definition at line 232 of file mpegts.c.

Function Documentation

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

Definition at line 271 of file mpegts.c.

Referenced by add_program(), and pmt_cb().

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

Definition at line 282 of file mpegts.c.

Referenced by pat_cb(), and pmt_cb().

static void clear_program ( struct Program p)
static

Definition at line 297 of file mpegts.c.

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

static void clear_programs ( MpegTSContext ts)
static

Definition at line 306 of file mpegts.c.

Referenced by mpegts_free().

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

Definition at line 312 of file mpegts.c.

Referenced by pat_cb().

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

Definition at line 328 of file mpegts.c.

Referenced by pat_cb(), and pmt_cb().

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

Definition at line 344 of file mpegts.c.

Referenced by pmt_cb().

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 374 of file mpegts.c.

Referenced by handle_packet().

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 415 of file mpegts.c.

Referenced by handle_packet().

static MpegTSFilter* mpegts_open_filter ( MpegTSContext ts,
unsigned int  pid,
enum MpegTSFilterType  type 
)
static
static MpegTSFilter* mpegts_open_section_filter ( MpegTSContext ts,
unsigned int  pid,
SectionCallback section_cb,
void opaque,
int  check_crc 
)
static
static MpegTSFilter* mpegts_open_pes_filter ( MpegTSContext ts,
unsigned int  pid,
PESCallback pes_cb,
void opaque 
)
static

Definition at line 532 of file mpegts.c.

Referenced by add_pes_stream().

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

Definition at line 548 of file mpegts.c.

Referenced by pmt_cb().

static void mpegts_close_filter ( MpegTSContext ts,
MpegTSFilter filter 
)
static

Definition at line 553 of file mpegts.c.

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

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

Definition at line 574 of file mpegts.c.

Referenced by get_packet_size(), and mpegts_probe().

static int get_packet_size ( AVFormatContext s)
static

Definition at line 603 of file mpegts.c.

Referenced by mpegts_read_header(), and mpegts_resync().

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

Definition at line 649 of file mpegts.c.

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

static int get8 ( const uint8_t **  pp,
const uint8_t p_end 
)
inlinestatic
static int get16 ( const uint8_t **  pp,
const uint8_t p_end 
)
inlinestatic
static char* getstr8 ( const uint8_t **  pp,
const uint8_t p_end 
)
static

Definition at line 688 of file mpegts.c.

Referenced by sdt_cb().

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

Definition at line 755 of file mpegts.c.

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

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

Definition at line 874 of file mpegts.c.

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

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

Definition at line 891 of file mpegts.c.

Referenced by mpegts_push_data(), and pmt_cb().

static void reset_pes_packet_state ( PESContext pes)
static

Definition at line 973 of file mpegts.c.

Referenced by mpegts_push_data(), and new_pes_packet().

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

Definition at line 982 of file mpegts.c.

Referenced by eit_cb(), and scte_data_cb().

static int new_pes_packet ( PESContext pes,
AVPacket pkt 
)
static

Definition at line 989 of file mpegts.c.

Referenced by mpegts_push_data(), and mpegts_read_packet().

static uint64_t get_ts64 ( GetBitContext gb,
int  bits 
)
static

Definition at line 1029 of file mpegts.c.

Referenced by read_sl_header().

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

Definition at line 1036 of file mpegts.c.

Referenced by mpegts_push_data().

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

Definition at line 1107 of file mpegts.c.

Referenced by 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 1120 of file mpegts.c.

Referenced by add_pes_stream().

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

Definition at line 1403 of file mpegts.c.

Referenced by handle_packet(), and pmt_cb().

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

Definition at line 1439 of file mpegts.c.

Referenced by mp4_read_iods(), and mp4_read_od().

static void update_offsets ( AVIOContext pb,
int64_t *  off,
int len 
)
static
static int parse_mp4_descr ( MP4DescrParseContext d,
int64_t  off,
int  len,
int  target_tag 
)
static

Definition at line 1585 of file mpegts.c.

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

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

Definition at line 1471 of file mpegts.c.

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

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

Definition at line 1482 of file mpegts.c.

Referenced by parse_mp4_descr().

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

Definition at line 1494 of file mpegts.c.

Referenced by parse_mp4_descr().

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

Definition at line 1508 of file mpegts.c.

Referenced by parse_mp4_descr().

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

Definition at line 1529 of file mpegts.c.

Referenced by parse_mp4_descr().

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

Definition at line 1543 of file mpegts.c.

Referenced by parse_mp4_descr().

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 1638 of file mpegts.c.

Referenced by pmt_cb().

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 1654 of file mpegts.c.

Referenced by m4sl_cb().

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

Definition at line 1670 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

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 1733 of file mpegts.c.

Referenced by pmt_cb().

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 1781 of file mpegts.c.

Referenced by parse_chunks(), and pmt_cb().

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 2204 of file mpegts.c.

Referenced by pmt_cb().

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

Definition at line 2231 of file mpegts.c.

Referenced by pmt_cb().

static int is_pes_stream ( int  stream_type,
uint32_t  prog_reg_desc 
)
static

Definition at line 2267 of file mpegts.c.

Referenced by pmt_cb().

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

Definition at line 2273 of file mpegts.c.

Referenced by pat_cb().

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

Definition at line 2490 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

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 2575 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

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

Definition at line 2629 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), and mpegts_read_header().

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

Definition at line 2717 of file mpegts.c.

Referenced by avpriv_mpegts_parse_packet(), and handle_packets().

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

Definition at line 2855 of file mpegts.c.

Referenced by mpegts_get_pcr(), and read_packet().

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

Definition at line 2898 of file mpegts.c.

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

static void finished_reading_packet ( AVFormatContext s,
int  raw_packet_size 
)
static

Definition at line 2923 of file mpegts.c.

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

static int handle_packets ( MpegTSContext ts,
int64_t  nb_packets 
)
static

Definition at line 2931 of file mpegts.c.

Referenced by mpegts_read_header(), and mpegts_read_packet().

static int mpegts_probe ( const AVProbeData p)
static

Definition at line 2984 of file mpegts.c.

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

Definition at line 3053 of file mpegts.c.

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

static int mpegts_read_header ( AVFormatContext s)
static

Definition at line 3062 of file mpegts.c.

static int mpegts_raw_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 3165 of file mpegts.c.

static int mpegts_read_packet ( AVFormatContext s,
AVPacket pkt 
)
static

Definition at line 3212 of file mpegts.c.

static void mpegts_free ( MpegTSContext ts)
static

Definition at line 3242 of file mpegts.c.

Referenced by avpriv_mpegts_parse_close(), and mpegts_read_close().

static int mpegts_read_close ( AVFormatContext s)
static

Definition at line 3256 of file mpegts.c.

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

Definition at line 3263 of file mpegts.c.

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

Definition at line 3297 of file mpegts.c.

MpegTSContext* avpriv_mpegts_parse_open ( AVFormatContext s)

Definition at line 3334 of file mpegts.c.

Referenced by get_sockaddr(), iec61883_read_header(), and mpegts_init().

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

Definition at line 3380 of file mpegts.c.

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

Variable Documentation

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 },
{ NULL },
}
#define NULL
Definition: coverity.c:32
#define AV_OPT_FLAG_EXPORT
The option is intended for exporting values to the caller.
Definition: opt.h:286
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:279
#define MPEGTS_OPTIONS
Definition: mpegts.c:182
#define AV_OPT_FLAG_READONLY
The option may not be set through the AVOptions API, only read.
Definition: opt.h:291

Definition at line 185 of file mpegts.c.

const AVClass mpegts_class
static
Initial value:
= {
.class_name = "mpegts demuxer",
.item_name = av_default_item_name,
.option = options,
}
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
static const AVOption options[]
Definition: mpegts.c:185

Definition at line 204 of file mpegts.c.

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 },
}
#define NULL
Definition: coverity.c:32
#define AV_OPT_FLAG_EXPORT
The option is intended for exporting values to the caller.
Definition: opt.h:286
#define AV_OPT_FLAG_DECODING_PARAM
a generic parameter which can be set by the user for demuxing or decoding
Definition: opt.h:279
#define MPEGTS_OPTIONS
Definition: mpegts.c:182
#define AV_OPT_FLAG_READONLY
The option may not be set through the AVOptions API, only read.
Definition: opt.h:291

Definition at line 211 of file mpegts.c.

const AVClass mpegtsraw_class
static
Initial value:
= {
.class_name = "mpegtsraw demuxer",
.item_name = av_default_item_name,
.option = raw_options,
}
#define LIBAVUTIL_VERSION_INT
Definition: version.h:85
const char * av_default_item_name(void *ptr)
Return the context name.
Definition: log.c:235
static const AVOption raw_options[]
Definition: mpegts.c:211

Definition at line 223 of file mpegts.c.

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),
.read_timestamp = mpegts_get_dts,
.priv_class = &mpegts_class,
}
static int mpegts_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: mpegts.c:3212
#define AVFMT_SHOW_IDS
Show format stream IDs numbers.
Definition: avformat.h:460
static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size, const uint8_t **data)
Definition: mpegts.c:2898
static int mpegts_read_header(AVFormatContext *s)
Definition: mpegts.c:3062
static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
Definition: mpegts.c:3297
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:145
#define AVFMT_TS_DISCONT
Format allows timestamp discontinuities.
Definition: avformat.h:464
static int mpegts_read_close(AVFormatContext *s)
Definition: mpegts.c:3256
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:115
static int mpegts_probe(const AVProbeData *p)
Definition: mpegts.c:2984
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:527
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int read_probe(const AVProbeData *pd)
Definition: jvdec.c:55
static const AVClass mpegts_class
Definition: mpegts.c:204

Definition at line 3386 of file mpegts.c.

const StreamType ISO_types[]
static
Initial value:
= {
{ 0x02, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG2VIDEO },
{ 0x04, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_MP3 },
{ 0x1c, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC },
{ 0x20, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264 },
{ 0 },
}
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:422
preferred ID for MPEG-1/2 video decoding
Definition: codec_id.h:51

Definition at line 790 of file mpegts.c.

const StreamType HDMV_types[]
static
const StreamType SCTE_types[]
static
Initial value:
= {
{ 0 },
}
Contain timestamp estimated through PCR of program stream.
Definition: codec_id.h:552
Opaque data information usually continuous.
Definition: avutil.h:203

Definition at line 830 of file mpegts.c.

const StreamType MISC_types[]
static
Initial value:

Definition at line 836 of file mpegts.c.

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 },
}
Opaque data information usually continuous.
Definition: avutil.h:203
#define MKTAG(a, b, c, d)
Definition: common.h:405

Definition at line 842 of file mpegts.c.

const StreamType METADATA_types[]
static
Initial value:
= {
{ 0 },
}
Opaque data information usually continuous.
Definition: avutil.h:203
#define MKTAG(a, b, c, d)
Definition: common.h:405

Definition at line 858 of file mpegts.c.

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

Definition at line 1762 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

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

Definition at line 1766 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

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 1770 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

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),
.read_timestamp = mpegts_get_dts,
.priv_class = &mpegtsraw_class,
}
#define AVFMT_SHOW_IDS
Show format stream IDs numbers.
Definition: avformat.h:460
static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size, const uint8_t **data)
Definition: mpegts.c:2898
static int mpegts_read_header(AVFormatContext *s)
Definition: mpegts.c:3062
static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
Definition: mpegts.c:3297
static av_cold int read_close(AVFormatContext *ctx)
Definition: libcdio.c:145
#define AVFMT_TS_DISCONT
Format allows timestamp discontinuities.
Definition: avformat.h:464
static int mpegts_read_close(AVFormatContext *s)
Definition: mpegts.c:3256
static int mpegts_raw_read_packet(AVFormatContext *s, AVPacket *pkt)
Definition: mpegts.c:3165
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:115
static const AVClass mpegtsraw_class
Definition: mpegts.c:223
static int read_header(FFV1Context *f)
Definition: ffv1dec.c:527
#define flags(name, subs,...)
Definition: cbs_av1.c:561

Definition at line 3399 of file mpegts.c.