mpegts.c File Reference

#include "libavutil/buffer.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	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_PIDS_PER_PROGRAM   64
#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 Program *	get_program (MpegTSContext *ts, unsigned int programid)
static void	clear_avprogram (MpegTSContext *ts, unsigned int programid)
static void	clear_program (MpegTSContext *ts, unsigned int programid)
static void	clear_programs (MpegTSContext *ts)
static void	add_pat_entry (MpegTSContext *ts, unsigned int programid)
static void	add_pid_to_pmt (MpegTSContext *ts, unsigned int programid, unsigned int pid)
static void	set_pmt_found (MpegTSContext *ts, unsigned int programid)
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 MpegTSFilter *	mpegts_open_filter (MpegTSContext *ts, unsigned int pid, enum MpegTSFilterType type)
static MpegTSFilter *	mpegts_open_section_filter (MpegTSContext *ts, unsigned int pid, SectionCallback *section_cb, void *opaque, int check_crc)
static MpegTSFilter *	mpegts_open_pes_filter (MpegTSContext *ts, unsigned int pid, PESCallback *pes_cb, void *opaque)
static MpegTSFilter *	mpegts_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 AVBufferRef *	buffer_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 PESContext *	add_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 AVStream *	find_matching_stream (MpegTSContext *ts, int pid, unsigned int programid, int stream_identifier, int pmt_stream_idx)
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)
MpegTSContext *	avpriv_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

MAX_RESYNC_SIZE

#define MAX_RESYNC_SIZE   65536

Definition at line 47 of file mpegts.c.

MAX_PES_PAYLOAD

#define MAX_PES_PAYLOAD   200 * 1024

Definition at line 49 of file mpegts.c.

MAX_MP4_DESCR_COUNT

#define MAX_MP4_DESCR_COUNT   16

Definition at line 51 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 53 of file mpegts.c.

PROBE_PACKET_MAX_BUF

#define PROBE_PACKET_MAX_BUF   8192

Definition at line 60 of file mpegts.c.

PROBE_PACKET_MARGIN

#define PROBE_PACKET_MARGIN   5

Definition at line 61 of file mpegts.c.

MAX_PIDS_PER_PROGRAM

#define MAX_PIDS_PER_PROGRAM   64

Definition at line 109 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 173 of file mpegts.c.

PES_START_SIZE

#define PES_START_SIZE   6

Definition at line 232 of file mpegts.c.

PES_HEADER_SIZE

#define PES_HEADER_SIZE   9

Definition at line 233 of file mpegts.c.

MAX_PES_HEADER_SIZE

#define MAX_PES_HEADER_SIZE   (9 + 255)

Definition at line 234 of file mpegts.c.

MAX_LEVEL

#define MAX_LEVEL   4

Definition at line 1425 of file mpegts.c.

R8_CHECK_CLIP_MAX

#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;                                   \
        return AVERROR_INVALIDDATA;                             \
    }                                                           \
} 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 3151 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 71 of file mpegts.c.

SectionCallback

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

Definition at line 79 of file mpegts.c.

SetServiceCallback

typedef void SetServiceCallback(void *opaque, int ret)

Definition at line 81 of file mpegts.c.

Enumeration Type Documentation

MpegTSFilterType

enum MpegTSFilterType

Enumerator
MPEGTS_PES
MPEGTS_SECTION
MPEGTS_PCR

Definition at line 63 of file mpegts.c.

MpegTSState

enum MpegTSState

Enumerator
MPEGTS_HEADER
MPEGTS_PESHEADER
MPEGTS_PESHEADER_FILL
MPEGTS_PAYLOAD
MPEGTS_SKIP

Definition at line 223 of file mpegts.c.

Function Documentation

get_program()

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

static

Definition at line 262 of file mpegts.c.

Referenced by add_pid_to_pmt(), pmt_cb(), and set_pmt_found().

clear_avprogram()

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

static

Definition at line 273 of file mpegts.c.

Referenced by clear_program(), and pat_cb().

clear_program()

static void clear_program ( MpegTSContext *  ts, unsigned int  programid  )

static

Definition at line 288 of file mpegts.c.

Referenced by pmt_cb().

clear_programs()

static void clear_programs ( MpegTSContext *  ts )

static

Definition at line 300 of file mpegts.c.

Referenced by mpegts_free(), and pat_cb().

add_pat_entry()

static void add_pat_entry ( MpegTSContext *  ts, unsigned int  programid  )

static

Definition at line 306 of file mpegts.c.

Referenced by pat_cb().

add_pid_to_pmt()

static void add_pid_to_pmt ( MpegTSContext *  ts, unsigned int  programid, unsigned int  pid  )

static

Definition at line 320 of file mpegts.c.

Referenced by pat_cb(), and pmt_cb().

set_pmt_found()

static void set_pmt_found ( MpegTSContext *  ts, unsigned int  programid  )

static

Definition at line 338 of file mpegts.c.

Referenced by 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 347 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 377 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 415 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

Definition at line 482 of file mpegts.c.

Referenced by mpegts_open_pcr_filter(), mpegts_open_pes_filter(), and mpegts_open_section_filter().

mpegts_open_section_filter()

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

static

Definition at line 505 of file mpegts.c.

Referenced by avpriv_mpegts_parse_open(), ff_parse_mpeg2_descriptor(), mpegts_read_header(), pat_cb(), and pmt_cb().

mpegts_open_pes_filter()

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().

mpegts_open_pcr_filter()

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

static

Definition at line 548 of file mpegts.c.

Referenced by pmt_cb().

mpegts_close_filter()

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().

analyze()

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().

get_packet_size()

static int get_packet_size ( AVFormatContext *  s )

static

Definition at line 603 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 648 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

Definition at line 659 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor(), getstr8(), parse_section_header(), parse_stream_identifier_desc(), pmt_cb(), and sdt_cb().

get16()

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

inlinestatic

Definition at line 672 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor(), parse_section_header(), parse_stream_identifier_desc(), pat_cb(), pmt_cb(), and sdt_cb().

getstr8()

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

static

Definition at line 687 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 754 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 873 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 890 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 972 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 981 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 988 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 1028 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 1035 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 1106 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 1119 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 1401 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 1437 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

Definition at line 1459 of file mpegts.c.

Referenced by parse_mp4_descr(), parse_mp4_descr_arr(), parse_MP4ESDescrTag(), parse_MP4IODescrTag(), and parse_MP4ODescrTag().

parse_mp4_descr()

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

static

Definition at line 1583 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 1469 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 1480 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 1492 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 1506 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 1527 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 1541 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 1636 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 1652 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 1668 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 1731 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]	fc	Format context (used for logging only)
	st	Stream
	stream_type	STREAM_TYPE_xxx
	pp	Descriptor buffer pointer
	desc_list_end	End of buffer

Returns

<0 to stop processing

Definition at line 1779 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  )

static

Definition at line 2202 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 2234 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 2270 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 2276 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 2486 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 2561 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 2615 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

Definition at line 3013 of file mpegts.c.

Referenced by handle_packet(), mpegts_get_pcr(), mpegts_raw_read_packet(), and mpegts_read_header().

handle_packet()

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

static

Definition at line 2703 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 2841 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 2884 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 2909 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 2917 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 2970 of file mpegts.c.

seek_back()

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

static

Definition at line 3039 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 3048 of file mpegts.c.

mpegts_raw_read_packet()

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

static

Definition at line 3153 of file mpegts.c.

mpegts_read_packet()

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

static

Definition at line 3200 of file mpegts.c.

mpegts_free()

static void mpegts_free ( MpegTSContext *  ts )

static

Definition at line 3230 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 3244 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 3251 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 3285 of file mpegts.c.

avpriv_mpegts_parse_open()

MpegTSContext* avpriv_mpegts_parse_open

(

AVFormatContext *

s

)

Definition at line 3322 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 3343 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 3368 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:

= {
    MPEGTS_OPTIONS,
    {"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,
     {.i64 = 0}, 0, 0, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
    {"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 },
}

Definition at line 176 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,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 195 of file mpegts.c.

raw_options

const AVOption raw_options[]

static

Initial value:

= {
    MPEGTS_OPTIONS,
    { "compute_pcr",   "compute exact PCR for each transport stream packet",
          0x42, AV_OPT_TYPE_BOOL,
          { .i64 = 0 }, 0, 1,  AV_OPT_FLAG_DECODING_PARAM },
    { "ts_packetsize", "output option carrying the raw packet size",
      0x42, AV_OPT_TYPE_INT,
      { .i64 = 0 }, 0, 0,
      AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
    { NULL },
}

Definition at line 202 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,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 214 of file mpegts.c.

ff_mpegts_demuxer

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_probe     = mpegts_probe,
    .read_header    = mpegts_read_header,
    .read_packet    = mpegts_read_packet,
    .read_close     = mpegts_read_close,
    .read_timestamp = mpegts_get_dts,
    .flags          = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
    .priv_class     = &mpegts_class,
}

Definition at line 3374 of file mpegts.c.

Referenced by mpegts_read_header().

ISO_types

const StreamType ISO_types[]

static

Initial value:

= {
    { 0x01, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG2VIDEO },
    { 0x02, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG2VIDEO },
    { 0x03, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_MP3        },
    { 0x04, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_MP3        },
    { 0x0f, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC        },
    { 0x10, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG4      },
    
 
    { 0x11, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC_LATM   }, 
 
    { 0x1b, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264       },
    { 0x1c, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AAC        },
    { 0x20, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H264       },
    { 0x21, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_JPEG2000   },
    { 0x24, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_HEVC       },
    { 0x42, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_CAVS       },
    { 0xd1, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_DIRAC      },
    { 0xd2, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_AVS2       },
    { 0xea, AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_VC1        },
    { 0 },
}

Definition at line 789 of file mpegts.c.

Referenced by mpegts_set_stream_info().

HDMV_types

const StreamType HDMV_types[]

static

Initial value:

= {
    { 0x80, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_PCM_BLURAY        },
    { 0x81, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_AC3               },
    { 0x82, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_DTS               },
    { 0x83, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_TRUEHD            },
    { 0x84, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_EAC3              },
    { 0x85, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_DTS               }, 
    { 0x86, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_DTS               }, 
    { 0xa1, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_EAC3              }, 
    { 0xa2, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_DTS               }, 
    { 0x90, AVMEDIA_TYPE_SUBTITLE, AV_CODEC_ID_HDMV_PGS_SUBTITLE },
    { 0x92, AVMEDIA_TYPE_SUBTITLE, AV_CODEC_ID_HDMV_TEXT_SUBTITLE },
    { 0 },
}

Definition at line 813 of file mpegts.c.

Referenced by mpegts_set_stream_info().

SCTE_types

const StreamType SCTE_types[]

static

Initial value:

= {
    { 0x86, AVMEDIA_TYPE_DATA,  AV_CODEC_ID_SCTE_35    },
    { 0 },
}

Definition at line 829 of file mpegts.c.

Referenced by pmt_cb().

MISC_types

const StreamType MISC_types[]

static

Initial value:

= {
    { 0x81, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_AC3 },
    { 0x8a, AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_DTS },
    { 0 },
}

Definition at line 835 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 841 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

METADATA_types

const StreamType METADATA_types[]

static

Initial value:

= {
    { 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 },
    { 0 },
}

Definition at line 857 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

DESC_types

const StreamType DESC_types[]

static

Initial value:

= {
    { 0x6a, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_AC3          }, 
    { 0x7a, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_EAC3         }, 
    { 0x7b, AVMEDIA_TYPE_AUDIO,    AV_CODEC_ID_DTS          },
    { 0x56, AVMEDIA_TYPE_SUBTITLE, AV_CODEC_ID_DVB_TELETEXT },
    { 0x59, AVMEDIA_TYPE_SUBTITLE, AV_CODEC_ID_DVB_SUBTITLE }, 
    { 0 },
}

Definition at line 864 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

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 1760 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 1764 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 1768 of file mpegts.c.

Referenced by ff_parse_mpeg2_descriptor().

ff_mpegtsraw_demuxer

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_header    = mpegts_read_header,
    .read_packet    = mpegts_raw_read_packet,
    .read_close     = mpegts_read_close,
    .read_timestamp = mpegts_get_dts,
    .flags          = AVFMT_SHOW_IDS | AVFMT_TS_DISCONT,
    .priv_class     = &mpegtsraw_class,
}

Definition at line 3387 of file mpegts.c.