#include "libavutil/crc.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 "libavcodec/bytestream.h"
#include "libavcodec/get_bits.h"
#include "avformat.h"
#include "mpegts.h"
#include "internal.h"
#include "avio_internal.h"
#include "seek.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 |
Defines | |
#define | MAX_RESYNC_SIZE 65536 |
#define | MAX_PES_PAYLOAD 200*1024 |
#define | MAX_MP4_DESCR_COUNT 16 |
#define | MAX_PIDS_PER_PROGRAM 64 |
#define | PES_START_SIZE 6 |
#define | PES_HEADER_SIZE 9 |
#define | MAX_PES_HEADER_SIZE (9 + 255) |
#define | MAX_LEVEL 4 |
#define | CHECK_COUNT 10 |
#define | MAX_PACKET_READAHEAD ((128 * 1024) / 188) |
Typedefs | |
typedef struct MpegTSFilter | MpegTSFilter |
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 } |
enum | MpegTSState { MPEGTS_HEADER = 0, MPEGTS_PESHEADER, MPEGTS_PESHEADER_FILL, MPEGTS_PAYLOAD, MPEGTS_SKIP } |
Functions | |
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_pcr_pid (AVFormatContext *s, unsigned int programid, unsigned int pid) |
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 | |
static void | write_section_data (AVFormatContext *s, 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. | |
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 void | mpegts_close_filter (MpegTSContext *ts, MpegTSFilter *filter) |
static int | analyze (const uint8_t *buf, int size, int packet_size, int *index) |
static int | get_packet_size (const uint8_t *buf, int size) |
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 | new_pes_packet (PESContext *pes, AVPacket *pkt) |
static uint64_t | get_bits64 (GetBitContext *gb, int bits) |
static int | read_sl_header (PESContext *pes, SLConfigDescr *sl, const uint8_t *buf, int buf_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) |
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. | |
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 | sdt_cb (MpegTSFilter *filter, const uint8_t *section, int section_len) |
static int | handle_packet (MpegTSContext *ts, const uint8_t *packet) |
static int | mpegts_resync (AVFormatContext *s) |
static int | read_packet (AVFormatContext *s, uint8_t *buf, int raw_packet_size) |
static int | handle_packets (MpegTSContext *ts, int nb_packets) |
static int | mpegts_probe (AVProbeData *p) |
static int | parse_pcr (int64_t *ppcr_high, int *ppcr_low, const uint8_t *packet) |
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 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 * | ff_mpegts_parse_open (AVFormatContext *s) |
int | ff_mpegts_parse_packet (MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len) |
void | ff_mpegts_parse_close (MpegTSContext *ts) |
Variables | |
static const AVOption | options [] |
static const AVClass | mpegtsraw_class |
AVInputFormat | ff_mpegts_demuxer |
static const StreamType | ISO_types [] |
static const StreamType | HDMV_types [] |
static const StreamType | MISC_types [] |
static const StreamType | REGD_types [] |
static const StreamType | DESC_types [] |
AVInputFormat | ff_mpegtsraw_demuxer |
#define CHECK_COUNT 10 |
#define MAX_MP4_DESCR_COUNT 16 |
#define MAX_PACKET_READAHEAD ((128 * 1024) / 188) |
#define MAX_PES_PAYLOAD 200*1024 |
#define MAX_PIDS_PER_PROGRAM 64 |
#define MAX_RESYNC_SIZE 65536 |
#define PES_HEADER_SIZE 9 |
#define PES_START_SIZE 6 |
typedef struct MpegTSFilter MpegTSFilter |
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) |
enum MpegTSFilterType |
enum MpegTSState |
static void add_pat_entry | ( | MpegTSContext * | ts, | |
unsigned int | programid | |||
) | [static] |
static PESContext* add_pes_stream | ( | MpegTSContext * | ts, | |
int | pid, | |||
int | pcr_pid | |||
) | [static] |
static void add_pid_to_pmt | ( | MpegTSContext * | ts, | |
unsigned int | programid, | |||
unsigned int | pid | |||
) | [static] |
static int analyze | ( | const uint8_t * | buf, | |
int | size, | |||
int | packet_size, | |||
int * | index | |||
) | [static] |
static void clear_program | ( | MpegTSContext * | ts, | |
unsigned int | programid | |||
) | [static] |
static void clear_programs | ( | MpegTSContext * | ts | ) | [static] |
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
ts | : - TS context | |
pid | : - pid |
Definition at line 250 of file mpegts.c.
Referenced by handle_packet().
void ff_mpegts_parse_close | ( | MpegTSContext * | ts | ) |
MpegTSContext* ff_mpegts_parse_open | ( | AVFormatContext * | s | ) |
int ff_mpegts_parse_packet | ( | MpegTSContext * | ts, | |
AVPacket * | pkt, | |||
const uint8_t * | buf, | |||
int | len | |||
) |
Definition at line 2280 of file mpegts.c.
Referenced by rtp_parse_one_packet(), and rtp_parse_packet_internal().
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.
[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 |
Definition at line 1272 of file mpegts.c.
Referenced by parse_chunks(), and pmt_cb().
Definition at line 457 of file mpegts.c.
Referenced by ff_parse_mpeg2_descriptor(), parse_section_header(), pat_cb(), pmt_cb(), and sdt_cb().
Definition at line 444 of file mpegts.c.
Referenced by ff_parse_mpeg2_descriptor(), getstr8(), parse_section_header(), pmt_cb(), and sdt_cb().
static uint64_t get_bits64 | ( | GetBitContext * | gb, | |
int | bits | |||
) | [static] |
static int get_packet_size | ( | const uint8_t * | buf, | |
int | size | |||
) | [static] |
static int handle_packet | ( | MpegTSContext * | ts, | |
const uint8_t * | packet | |||
) | [static] |
Definition at line 1673 of file mpegts.c.
Referenced by ff_mpegts_parse_packet(), and handle_packets().
static int handle_packets | ( | MpegTSContext * | ts, | |
int | nb_packets | |||
) | [static] |
Definition at line 1822 of file mpegts.c.
Referenced by mpegts_read_header(), and mpegts_read_packet().
static int init_MP4DescrParseContext | ( | MP4DescrParseContext * | d, | |
AVFormatContext * | s, | |||
const uint8_t * | buf, | |||
unsigned | size, | |||
Mp4Descr * | descr, | |||
int | max_descr_count | |||
) | [static] |
static void m4sl_cb | ( | MpegTSFilter * | filter, | |
const uint8_t * | section, | |||
int | section_len | |||
) | [static] |
static int mp4_read_iods | ( | AVFormatContext * | s, | |
const uint8_t * | buf, | |||
unsigned | size, | |||
Mp4Descr * | descr, | |||
int * | descr_count, | |||
int | max_descr_count | |||
) | [static] |
static int mp4_read_od | ( | AVFormatContext * | s, | |
const uint8_t * | buf, | |||
unsigned | size, | |||
Mp4Descr * | descr, | |||
int * | descr_count, | |||
int | max_descr_count | |||
) | [static] |
static void mpegts_close_filter | ( | MpegTSContext * | ts, | |
MpegTSFilter * | filter | |||
) | [static] |
static void mpegts_find_stream_type | ( | AVStream * | st, | |
uint32_t | stream_type, | |||
const StreamType * | types | |||
) | [static] |
Definition at line 587 of file mpegts.c.
Referenced by ff_parse_mpeg2_descriptor(), and mpegts_set_stream_info().
static int64_t mpegts_get_dts | ( | AVFormatContext * | s, | |
int | stream_index, | |||
int64_t * | ppos, | |||
int64_t | pos_limit | |||
) | [static] |
static av_unused int64_t mpegts_get_pcr | ( | AVFormatContext * | s, | |
int | stream_index, | |||
int64_t * | ppos, | |||
int64_t | pos_limit | |||
) | [static] |
static MpegTSFilter* mpegts_open_pes_filter | ( | MpegTSContext * | ts, | |
unsigned int | pid, | |||
PESCallback * | pes_cb, | |||
void * | opaque | |||
) | [static] |
static MpegTSFilter* mpegts_open_section_filter | ( | MpegTSContext * | ts, | |
unsigned int | pid, | |||
SectionCallback * | section_cb, | |||
void * | opaque, | |||
int | check_crc | |||
) | [static] |
Definition at line 317 of file mpegts.c.
Referenced by ff_mpegts_parse_open(), ff_parse_mpeg2_descriptor(), mpegts_read_header(), and pat_cb().
static int mpegts_probe | ( | AVProbeData * | p | ) | [static] |
static int mpegts_push_data | ( | MpegTSFilter * | filter, | |
const uint8_t * | buf, | |||
int | buf_size, | |||
int | is_start, | |||
int64_t | pos | |||
) | [static] |
static int mpegts_raw_read_packet | ( | AVFormatContext * | s, | |
AVPacket * | pkt | |||
) | [static] |
static int mpegts_read_close | ( | AVFormatContext * | s | ) | [static] |
static int mpegts_read_header | ( | AVFormatContext * | s | ) | [static] |
static int mpegts_read_packet | ( | AVFormatContext * | s, | |
AVPacket * | pkt | |||
) | [static] |
static int mpegts_resync | ( | AVFormatContext * | s | ) | [static] |
static int mpegts_set_stream_info | ( | AVStream * | st, | |
PESContext * | pes, | |||
uint32_t | stream_type, | |||
uint32_t | prog_reg_desc | |||
) | [static] |
static void new_pes_packet | ( | PESContext * | pes, | |
AVPacket * | pkt | |||
) | [static] |
Definition at line 659 of file mpegts.c.
Referenced by mpegts_push_data(), and mpegts_read_packet().
static int parse_mp4_descr | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len, | |||
int | target_tag | |||
) | [static] |
Definition at line 1138 of file mpegts.c.
Referenced by mp4_read_iods(), parse_mp4_descr_arr(), and parse_MP4ESDescrTag().
static int parse_mp4_descr_arr | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
Definition at line 1038 of file mpegts.c.
Referenced by mp4_read_od(), parse_MP4IODescrTag(), and parse_MP4ODescrTag().
static int parse_MP4DecConfigDescrTag | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
static int parse_MP4ESDescrTag | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
static int parse_MP4IODescrTag | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
static int parse_MP4ODescrTag | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
static int parse_MP4SLDescrTag | ( | MP4DescrParseContext * | d, | |
int64_t | off, | |||
int | len | |||
) | [static] |
static int parse_pcr | ( | int64_t * | ppcr_high, | |
int * | ppcr_low, | |||
const uint8_t * | packet | |||
) | [static] |
Definition at line 1901 of file mpegts.c.
Referenced by mpegts_get_pcr(), mpegts_raw_read_packet(), and mpegts_read_header().
static int parse_section_header | ( | SectionHeader * | h, | |
const uint8_t ** | pp, | |||
const uint8_t * | p_end | |||
) | [static] |
static void pat_cb | ( | MpegTSFilter * | filter, | |
const uint8_t * | section, | |||
int | section_len | |||
) | [static] |
Definition at line 1547 of file mpegts.c.
Referenced by ff_mpegts_parse_open(), and mpegts_read_header().
static void pmt_cb | ( | MpegTSFilter * | filter, | |
const uint8_t * | section, | |||
int | section_len | |||
) | [static] |
static int read_packet | ( | AVFormatContext * | s, | |
uint8_t * | buf, | |||
int | raw_packet_size | |||
) | [static] |
static int read_sl_header | ( | PESContext * | pes, | |
SLConfigDescr * | sl, | |||
const uint8_t * | buf, | |||
int | buf_size | |||
) | [static] |
static void sdt_cb | ( | MpegTSFilter * | filter, | |
const uint8_t * | section, | |||
int | section_len | |||
) | [static] |
Definition at line 1595 of file mpegts.c.
Referenced by ff_mpegts_parse_open(), and mpegts_read_header().
static void set_pcr_pid | ( | AVFormatContext * | s, | |
unsigned int | programid, | |||
unsigned int | pid | |||
) | [static] |
static void update_offsets | ( | AVIOContext * | pb, | |
int64_t * | off, | |||
int * | len | |||
) | [static] |
Definition at line 1029 of file mpegts.c.
Referenced by parse_mp4_descr(), parse_mp4_descr_arr(), parse_MP4ESDescrTag(), parse_MP4IODescrTag(), and parse_MP4ODescrTag().
static void write_section_data | ( | AVFormatContext * | s, | |
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 279 of file mpegts.c.
Referenced by handle_packet().
const StreamType DESC_types[] [static] |
Initial value:
{ { 0x6a, AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3 }, { 0x7a, AVMEDIA_TYPE_AUDIO, CODEC_ID_EAC3 }, { 0x7b, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0x56, AVMEDIA_TYPE_SUBTITLE, CODEC_ID_DVB_TELETEXT }, { 0x59, AVMEDIA_TYPE_SUBTITLE, CODEC_ID_DVB_SUBTITLE }, { 0 }, }
Initial value:
{ .name = "mpegts", .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 transport stream format"), .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, }
Initial value:
{ .name = "mpegtsraw", .long_name = NULL_IF_CONFIG_SMALL("MPEG-2 raw transport stream format"), .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, }
const StreamType HDMV_types[] [static] |
Initial value:
{ { 0x80, AVMEDIA_TYPE_AUDIO, CODEC_ID_PCM_BLURAY }, { 0x81, AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3 }, { 0x82, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0x83, AVMEDIA_TYPE_AUDIO, CODEC_ID_TRUEHD }, { 0x84, AVMEDIA_TYPE_AUDIO, CODEC_ID_EAC3 }, { 0x85, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0x86, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0xa1, AVMEDIA_TYPE_AUDIO, CODEC_ID_EAC3 }, { 0xa2, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0x90, AVMEDIA_TYPE_SUBTITLE, CODEC_ID_HDMV_PGS_SUBTITLE }, { 0 }, }
const StreamType ISO_types[] [static] |
Initial value:
{ { 0x01, AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG2VIDEO }, { 0x02, AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG2VIDEO }, { 0x03, AVMEDIA_TYPE_AUDIO, CODEC_ID_MP3 }, { 0x04, AVMEDIA_TYPE_AUDIO, CODEC_ID_MP3 }, { 0x0f, AVMEDIA_TYPE_AUDIO, CODEC_ID_AAC }, { 0x10, AVMEDIA_TYPE_VIDEO, CODEC_ID_MPEG4 }, { 0x1b, AVMEDIA_TYPE_VIDEO, CODEC_ID_H264 }, { 0xd1, AVMEDIA_TYPE_VIDEO, CODEC_ID_DIRAC }, { 0xea, AVMEDIA_TYPE_VIDEO, CODEC_ID_VC1 }, { 0 }, }
const StreamType MISC_types[] [static] |
Initial value:
{ { 0x81, AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3 }, { 0x8a, AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { 0 }, }
const AVClass mpegtsraw_class [static] |
Initial value:
{ .class_name = "mpegtsraw demuxer", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, }
Initial value:
{ {"compute_pcr", "Compute exact PCR for each transport stream packet.", 0x42, AV_OPT_TYPE_INT, {.dbl = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM }, { NULL }, }
const StreamType REGD_types[] [static] |
Initial value:
{ { MKTAG('d','r','a','c'), AVMEDIA_TYPE_VIDEO, CODEC_ID_DIRAC }, { MKTAG('A','C','-','3'), AVMEDIA_TYPE_AUDIO, CODEC_ID_AC3 }, { MKTAG('B','S','S','D'), AVMEDIA_TYPE_AUDIO, CODEC_ID_S302M }, { MKTAG('D','T','S','1'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { MKTAG('D','T','S','2'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { MKTAG('D','T','S','3'), AVMEDIA_TYPE_AUDIO, CODEC_ID_DTS }, { MKTAG('V','C','-','1'), AVMEDIA_TYPE_VIDEO, CODEC_ID_VC1 }, { 0 }, }