40 #define MAX_RESYNC_SIZE 65536
42 #define MAX_PES_PAYLOAD 200*1024
44 #define MAX_MP4_DESCR_COUNT 16
85 #define MAX_PIDS_PER_PROGRAM 64
154 #define PES_START_SIZE 6
155 #define PES_HEADER_SIZE 9
156 #define MAX_PES_HEADER_SIZE (9 + 255)
186 for(i=0; i<ts->
nb_prg; i++)
187 if(ts->
prg[i].
id == programid)
214 for(i=0; i<ts->
nb_prg; i++) {
215 if(ts->
prg[i].
id == programid) {
239 int used = 0, discarded = 0;
241 for(i=0; i<ts->
nb_prg; i++) {
244 if(p->
pids[j] != pid)
258 return !used && discarded;
266 const uint8_t *buf,
int buf_size,
int is_start)
385 memset(stat, 0, packet_size*
sizeof(
int));
387 for(x=i=0; i<size-3; i++){
388 if(buf[i] == 0x47 && !(buf[i+1] & 0x80) && (buf[i+3] & 0x30)){
390 if(stat[x] > best_score){
397 if(x == packet_size) x= 0;
406 int score, fec_score, dvhs_score;
414 av_dlog(
NULL,
"score: %d, dvhs_score: %d, fec_score: %d \n",
415 score, dvhs_score, fec_score);
417 if (score > fec_score && score > dvhs_score)
return TS_PACKET_SIZE;
450 if ((p + 1) >= p_end)
466 len =
get8(&p, p_end);
469 if ((p + len) > p_end)
486 val =
get8(pp, p_end);
491 val =
get16(pp, p_end);
495 val =
get8(pp, p_end);
498 h->
version = (val >> 1) & 0x1f;
499 val =
get8(pp, p_end);
503 val =
get8(pp, p_end);
571 uint32_t stream_type,
const StreamType *types)
583 uint32_t stream_type, uint32_t prog_reg_desc)
594 "stream=%d stream_type=%x pid=%x prog_reg_desc=%.4s\n",
600 if (prog_reg_desc ==
AV_RL32(
"HDMV") &&
611 memcpy(sub_pes, pes,
sizeof(*sub_pes));
619 sub_st->
id = pes->
pid;
671 int au_start_flag = 0, au_end_flag = 0, ocr_flag = 0, idle_flag = 0;
672 int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;
673 int dts_flag = -1, cts_flag = -1;
682 au_start_flag = au_end_flag = 1;
692 if (!idle_flag && (!padding_flag || padding_bits != 0)) {
718 if (inst_bitrate_flag)
735 const uint8_t *buf,
int buf_size,
int is_start,
756 while (buf_size > 0) {
772 code = pes->
header[3] | 0x100;
800 if (code != 0x1bc && code != 0x1bf &&
801 code != 0x1f0 && code != 0x1f1 &&
802 code != 0x1ff && code != 0x1f2 &&
852 unsigned int flags, pes_ext, skip;
858 if ((flags & 0xc0) == 0x80) {
861 }
else if ((flags & 0xc0) == 0xc0) {
871 skip = (pes_ext >> 4) & 0xb;
874 if ((pes_ext & 0x41) == 0x01 &&
877 if ((r[0] & 0x7f) > 0 && (r[1] & 0x80) == 0)
888 p += sl_header_bytes;
889 buf_size -= sl_header_bytes;
894 if (buf_size > 0 && pes->
buffer) {
990 (*len) -= new_off - *
off;
1025 if (!(id_flags & 0x0020)) {
1102 if (len < 0 || len1 > len || len1 <= 0) {
1103 av_log(d->
s,
AV_LOG_ERROR,
"Tag %x length violation new length %d bytes remaining %d\n", tag, len1, len);
1112 if (target_tag && tag != target_tag) {
1142 Mp4Descr *descr,
int *descr_count,
int max_descr_count)
1155 Mp4Descr *descr,
int *descr_count,
int max_descr_count)
1174 int mp4_descr_count = 0;
1178 p_end = section + section_len - 4;
1190 for (i = 0; i < mp4_descr_count; i++) {
1205 pes->
sl = mp4_descr[i].
sl;
1227 for (i = 0; i < mp4_descr_count; i++)
1228 av_free(mp4_descr[i].dec_config_descr);
1233 Mp4Descr *mp4_descr,
int mp4_descr_count,
int pid,
1237 int desc_len, desc_tag, desc_es_id;
1241 desc_tag =
get8(pp, desc_list_end);
1244 desc_len =
get8(pp, desc_list_end);
1247 desc_end = *pp + desc_len;
1248 if (desc_end > desc_list_end)
1251 av_dlog(fc,
"tag: 0x%02x len=%d\n", desc_tag, desc_len);
1259 desc_es_id =
get16(pp, desc_end);
1260 if (ts && ts->
pids[pid])
1262 for (i = 0; i < mp4_descr_count; i++)
1263 if (mp4_descr[i].dec_config_descr_len &&
1264 mp4_descr[i].es_id == desc_es_id) {
1277 get16(pp, desc_end);
1290 language[0] =
get8(pp, desc_end);
1291 language[1] =
get8(pp, desc_end);
1292 language[2] =
get8(pp, desc_end);
1297 language[0] =
get8(pp, desc_end);
1298 language[1] =
get8(pp, desc_end);
1299 language[2] =
get8(pp, desc_end);
1302 switch(
get8(pp, desc_end)) {
1326 for (i = 0; i + 4 <= desc_len; i += 4) {
1327 language[i + 0] =
get8(pp, desc_end);
1328 language[i + 1] =
get8(pp, desc_end);
1329 language[i + 2] =
get8(pp, desc_end);
1330 language[i + 3] =
',';
1331 switch (
get8(pp, desc_end)) {
1338 language[i - 1] = 0;
1361 const uint8_t *p, *p_end, *desc_list_end;
1362 int program_info_length, pcr_pid, pid, stream_type;
1364 uint32_t prog_reg_desc = 0;
1367 int mp4_descr_count = 0;
1373 p_end = section + section_len - 4;
1385 pcr_pid =
get16(&p, p_end);
1393 program_info_length =
get16(&p, p_end);
1394 if (program_info_length < 0)
1396 program_info_length &= 0xfff;
1397 while(program_info_length >= 2) {
1399 tag =
get8(&p, p_end);
1400 len =
get8(&p, p_end);
1402 av_dlog(ts->
stream,
"program tag: 0x%02x len=%d\n", tag, len);
1404 if(len > program_info_length - 2)
1407 program_info_length -= len + 2;
1414 }
else if (tag == 0x05 && len >= 4) {
1415 prog_reg_desc = bytestream_get_le32(&p);
1420 p += program_info_length;
1431 stream_type =
get8(&p, p_end);
1432 if (stream_type < 0)
1434 pid =
get16(&p, p_end);
1447 }
else if (stream_type != 0x13) {
1475 desc_list_len =
get16(&p, p_end);
1476 if (desc_list_len < 0)
1478 desc_list_len &= 0xfff;
1479 desc_list_end = p + desc_list_len;
1480 if (desc_list_end > p_end)
1484 mp4_descr, mp4_descr_count, pid, ts) < 0)
1487 if (pes && prog_reg_desc ==
AV_RL32(
"HDMV") && stream_type == 0x83 && pes->
sub_st) {
1496 for (i = 0; i < mp4_descr_count; i++)
1497 av_free(mp4_descr[i].dec_config_descr);
1510 p_end = section + section_len - 4;
1519 sid =
get16(&p, p_end);
1522 pmt_pid =
get16(&p, p_end);
1529 if (sid == 0x0000) {
1533 if (ts->
pids[pmt_pid])
1547 const uint8_t *p, *p_end, *desc_list_end, *desc_end;
1548 int onid, val, sid, desc_list_len, desc_tag, desc_len, service_type;
1549 char *
name, *provider_name;
1554 p_end = section + section_len - 4;
1560 onid =
get16(&p, p_end);
1563 val =
get8(&p, p_end);
1567 sid =
get16(&p, p_end);
1570 val =
get8(&p, p_end);
1573 desc_list_len =
get16(&p, p_end);
1574 if (desc_list_len < 0)
1576 desc_list_len &= 0xfff;
1577 desc_list_end = p + desc_list_len;
1578 if (desc_list_end > p_end)
1581 desc_tag =
get8(&p, desc_list_end);
1584 desc_len =
get8(&p, desc_list_end);
1585 desc_end = p + desc_len;
1586 if (desc_end > desc_list_end)
1590 desc_tag, desc_len);
1594 service_type =
get8(&p, p_end);
1595 if (service_type < 0)
1597 provider_name =
getstr8(&p, p_end);
1625 int len, pid, cc, expected_cc, cc_ok, afc, is_start, is_discontinuity,
1626 has_adaptation, has_payload;
1630 pid =
AV_RB16(packet + 1) & 0x1fff;
1633 is_start = packet[1] & 0x40;
1634 tss = ts->
pids[pid];
1637 tss = ts->
pids[pid];
1642 afc = (packet[3] >> 4) & 3;
1645 has_adaptation = afc & 2;
1646 has_payload = afc & 1;
1647 is_discontinuity = has_adaptation
1649 && (packet[5] & 0x80);
1652 cc = (packet[3] & 0xf);
1653 expected_cc = has_payload ? (tss->
last_cc + 1) & 0x0f : tss->
last_cc;
1654 cc_ok = pid == 0x1FFF
1657 || expected_cc == cc;
1662 "Continuity check failed for pid %d expected %d got %d\n",
1663 pid, expected_cc, cc);
1673 if (has_adaptation) {
1689 if (p + len > p_end)
1753 if (buf[0] != 0x47) {
1774 int packet_num, ret = 0;
1800 if (nb_packets != 0 && packet_num >= nb_packets)
1816 int score, fec_score, dvhs_score;
1818 #define CHECK_COUNT 10
1826 av_dlog(
NULL,
"score: %d, dvhs_score: %d, fec_score: %d \n",
1827 score, dvhs_score, fec_score);
1845 afc = (packet[3] >> 4) & 3;
1855 if (!(flags & 0x10))
1860 *ppcr_high = ((int64_t)v << 1) | (p[4] >> 7);
1861 *ppcr_low = ((p[4] & 1) << 8) | p[5];
1876 if (len !=
sizeof(buf))
1884 if (s->
iformat == &ff_mpegts_demuxer) {
1905 int pcr_pid, pid, nb_packets, nb_pcrs, ret, pcr_l;
1906 int64_t pcrs[2], pcr_h;
1907 int packet_count[2];
1927 pid =
AV_RB16(packet + 1) & 0x1fff;
1928 if ((pcr_pid == -1 || pcr_pid == pid) &&
1929 parse_pcr(&pcr_h, &pcr_l, packet) == 0) {
1931 packet_count[nb_pcrs] = nb_packets;
1932 pcrs[nb_pcrs] = pcr_h * 300 + pcr_l;
1942 ts->
pcr_incr = (pcrs[1] - pcrs[0]) / (packet_count[1] - packet_count[0]);
1957 #define MAX_PACKET_READAHEAD ((128 * 1024) / 188)
1964 int64_t pcr_h, next_pcr_h, pos;
1965 int pcr_l, next_pcr_l;
1984 if (
parse_pcr(&next_pcr_h, &next_pcr_l, pcr_buf) == 0) {
1986 ts->
pcr_incr = ((next_pcr_h - pcr_h) * 300 + (next_pcr_l - pcr_l)) /
1993 ts->
cur_pcr = pcr_h * 300 + pcr_l;
2027 if (!ret && pkt->
size < 0)
2046 int64_t *ppos, int64_t pos_limit)
2049 int64_t pos, timestamp;
2052 const int find_next= 1;
2059 if ((pcr_pid < 0 || (
AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
2060 parse_pcr(×tamp, &pcr_l, buf) == 0) {
2073 if ((pcr_pid < 0 || (
AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
2074 parse_pcr(×tamp, &pcr_l, buf) == 0) {
2099 if(buf[1] & 0x40)
break;
2139 if (buf[0] != 0x47) {
2174 .
name =
"mpegtsraw",
2183 .priv_class = &mpegtsraw_class,
codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it ...
void * av_malloc(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
struct PESContext PESContext
void av_free_packet(AVPacket *pkt)
Free a packet.
#define AV_PKT_FLAG_CORRUPT
static int mpegts_resync(AVFormatContext *s)
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
uint32_t av_crc(const AVCRC *ctx, uint32_t crc, const uint8_t *buffer, size_t length)
Calculate the CRC of a block.
A dummy id pointing at the start of audio codecs.
int64_t cur_pcr
used to estimate the exact PCR
#define MAX_PACKET_READAHEAD
enum AVMediaType codec_type
static int parse_MP4ODescrTag(MP4DescrParseContext *d, int64_t off, int len)
static unsigned int get_bits(GetBitContext *s, int n)
Read 1-25 bits.
static int handle_packet(MpegTSContext *ts, const uint8_t *packet)
int64_t pos
byte position in stream, -1 if unknown
static void clear_program(MpegTSContext *ts, unsigned int programid)
static void skip_bits_long(GetBitContext *s, int n)
static int mpegts_probe(AVProbeData *p)
int index
stream index in AVFormatContext
MpegTSPESFilter pes_filter
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence)
fseek() equivalent for AVIOContext.
enum AVMediaType codec_type
AVInputFormat ff_mpegts_demuxer
static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
A dummy ID pointing at the start of various fake codecs.
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic?ac->func_descr_generic:ac->func_descr)
static int parse_section_header(SectionHeader *h, const uint8_t **pp, const uint8_t *p_end)
enum MpegTSFilterType type
static int mpegts_read_packet(AVFormatContext *s, AVPacket *pkt)
unsigned int avio_rb16(AVIOContext *s)
int ctx_flags
Format-specific flags, see AVFMTCTX_xx.
int pcr_pid
if -1 then all packets containing PCR are considered
unsigned int nb_prg
structure to keep track of Program->pids mapping
void av_freep(void *arg)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc() and set the pointer ...
const char * class_name
The name of the class; usually it is the same name as the context structure type to which the AVClass...
unsigned int pids[MAX_PIDS_PER_PROGRAM]
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 complet...
static int read_sl_header(PESContext *pes, SLConfigDescr *sl, const uint8_t *buf, int buf_size)
MpegTSFilter * pids[NB_PID_MAX]
filters for various streams specified by PMT + for the PAT and PMT
static int mpegts_read_header(AVFormatContext *s)
Opaque data information usually continuous.
const AVCRC * av_crc_get_table(AVCRCId crc_id)
Get an initialized standard CRC table.
unsigned int avio_rb32(AVIOContext *s)
int stop_parse
stop parsing loop
static int parse_MP4ESDescrTag(MP4DescrParseContext *d, int64_t off, int len)
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 add_pat_entry(MpegTSContext *ts, unsigned int programid)
static int mpegts_push_data(MpegTSFilter *filter, const uint8_t *buf, int buf_size, int is_start, int64_t pos)
int id
Format-specific stream ID.
enum AVStreamParseType need_parsing
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
#define AV_DISPOSITION_CLEAN_EFFECTS
static void update_offsets(AVIOContext *pb, int64_t *off, int *len)
AVProgram * av_new_program(AVFormatContext *s, int id)
static int get_bits_count(const GetBitContext *s)
bitstream reader API header.
static av_cold int read_close(AVFormatContext *ctx)
#define MKTAG(a, b, c, d)
static av_always_inline int64_t avio_tell(AVIOContext *s)
ftell() equivalent for AVIOContext.
enum AVDiscard discard
selects which program to discard and which to feed to the caller
static PESContext * add_pes_stream(MpegTSContext *ts, int pid, int pcr_pid)
int duration
Duration of this packet in AVStream->time_base units, 0 if unknown.
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
static MpegTSFilter * mpegts_open_pes_filter(MpegTSContext *ts, unsigned int pid, PESCallback *pes_cb, void *opaque)
AVInputFormat ff_mpegtsraw_demuxer
static int init_MP4DescrParseContext(MP4DescrParseContext *d, AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int max_descr_count)
void(* destruct)(struct AVPacket *)
int av_new_packet(AVPacket *pkt, int size)
Allocate the payload of a packet and initialize its fields with default values.
static uint64_t get_bits64(GetBitContext *s, int n)
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
AVCodecID
Identify the syntax and semantics of the bitstream.
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
void av_log_ask_for_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message asking for a sample.
static const StreamType HDMV_types[]
static int mpegts_read_close(AVFormatContext *s)
static int mpegts_raw_read_packet(AVFormatContext *s, AVPacket *pkt)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
preferred ID for decoding MPEG audio layer 1, 2 or 3
void av_log(void *avcl, int level, const char *fmt,...)
AVStream * avformat_new_stream(AVFormatContext *s, AVCodec *c)
Add a new stream to a media file.
#define TS_FEC_PACKET_SIZE
New fields can be added to the end with minor version bumps.
static int64_t ff_parse_pes_pts(const uint8_t *buf)
Parse MPEG-PES five-byte timestamp.
static int parse_MP4DecConfigDescrTag(MP4DescrParseContext *d, int64_t off, int len)
int flags
copied to the AVPacket flags
struct MpegTSPESFilter MpegTSPESFilter
int pcr_incr
used to estimate the exact PCR
int flags
A combination of AV_PKT_FLAG values.
int avio_r8(AVIOContext *s)
AVCodecContext * codec
Codec context associated with this stream.
MpegTSContext * ff_mpegts_parse_open(AVFormatContext *s)
int buf_size
Size of buf except extra allocated bytes.
unsigned char * buf
Buffer must have AVPROBE_PADDING_SIZE of extra allocated bytes filled with zero.
static void filter(MpegAudioContext *s, int ch, const short *samples, int incr)
unsigned int nb_streams
A list of all streams in the file.
int seekable
A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
int bit_rate
the average bitrate
int64_t ts_packet_pos
position of first TS packet of this PES packet
SectionCallback * section_cb
static const StreamType REGD_types[]
int PESCallback(MpegTSFilter *f, const uint8_t *buf, int len, int is_start, int64_t pos)
static const StreamType MISC_types[]
static int mp4_read_od(AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int *descr_count, int max_descr_count)
#define TS_DVHS_PACKET_SIZE
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
struct SectionHeader SectionHeader
static int handle_packets(MpegTSContext *ts, int nb_packets)
static int mpegts_set_stream_info(AVStream *st, PESContext *pes, uint32_t stream_type, uint32_t prog_reg_desc)
static int parse_mp4_descr(MP4DescrParseContext *d, int64_t off, int len, int target_tag)
static int parse_MP4SLDescrTag(MP4DescrParseContext *d, int64_t off, int len)
int mpeg2ts_compute_pcr
compute exact PCR for each transport stream packet
static const AVClass mpegtsraw_class
MpegTSSectionFilter section_filter
unsigned int probesize
decoding: size of data to probe; encoding: unused.
int ff_mpegts_parse_packet(MpegTSContext *ts, AVPacket *pkt, const uint8_t *buf, int len)
preferred ID for MPEG-1/2 video decoding
int auto_guess
if true, all pids are analyzed to find streams
int raw_packet_size
raw packet size, including FEC if present
static const StreamType ISO_types[]
static int read_header(FFV1Context *f)
FAKE codec to indicate a MPEG-4 Systems stream (only used by libavformat)
#define TS_MAX_PACKET_SIZE
uint8_t * dec_config_descr
enum AVMediaType codec_type
#define MP4DecConfigDescrTag
static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, int flags)
AVIOContext * pb
I/O context.
#define AV_OPT_FLAG_DECODING_PARAM
void av_destruct_packet(AVPacket *pkt)
Default packet destructor.
static int parse_mp4_descr_arr(MP4DescrParseContext *d, int64_t off, int len)
static void new_pes_packet(PESContext *pes, AVPacket *pkt)
static int get_packet_size(const uint8_t *buf, int size)
unsigned int codec_tag
fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
#define STREAM_TYPE_PRIVATE_DATA
static int64_t mpegts_get_pcr(AVFormatContext *s, int stream_index, int64_t *ppos, int64_t pos_limit)
#define MAX_PES_HEADER_SIZE
static int get8(const uint8_t **pp, const uint8_t *p_end)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
#define MAX_PIDS_PER_PROGRAM
static unsigned int get_bits1(GetBitContext *s)
static int parse_pcr(int64_t *ppcr_high, int *ppcr_low, const uint8_t *packet)
Describe the class of an AVClass context structure.
static void skip_bits(GetBitContext *s, int n)
void av_log_missing_feature(void *avc, const char *feature, int want_sample)
Log a generic warning message about a missing feature.
static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
static int init_get_bits(GetBitContext *s, const uint8_t *buffer, int bit_size)
Initialize GetBitContext.
#define FF_INPUT_BUFFER_PADDING_SIZE
static void mpegts_close_filter(MpegTSContext *ts, MpegTSFilter *filter)
static const StreamType DESC_types[]
This structure contains the data a format has to probe a file.
unsigned int end_of_section_reached
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 clear_programs(MpegTSContext *ts)
static const AVOption options[]
static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
void ff_mpegts_parse_close(MpegTSContext *ts)
int ffio_init_context(AVIOContext *s, unsigned char *buffer, int buffer_size, int write_flag, void *opaque, int(*read_packet)(void *opaque, uint8_t *buf, int buf_size), int(*write_packet)(void *opaque, uint8_t *buf, int buf_size), int64_t(*seek)(void *opaque, int64_t offset, int whence))
void * av_realloc(void *ptr, size_t size)
Allocate or reallocate a block of memory.
int64_t start_time
Decoding: pts of the first frame of the stream, in stream time base.
#define AVERROR_INVALIDDATA
int disposition
AV_DISPOSITION_* bit field.
uint8_t header[MAX_PES_HEADER_SIZE]
#define AVPROBE_SCORE_MAX
static int read_packet(AVFormatContext *s, uint8_t *buf, int raw_packet_size)
void av_init_packet(AVPacket *pkt)
Initialize optional fields of a packet with default values.
struct AVInputFormat * iformat
Can only be iformat or oformat, not both at the same time.
struct MpegTSContext MpegTSContext
struct MpegTSSectionFilter MpegTSSectionFilter
static MpegTSFilter * mpegts_open_section_filter(MpegTSContext *ts, unsigned int pid, SectionCallback *section_cb, void *opaque, int check_crc)
FAKE codec to indicate a raw MPEG-2 TS stream (only used by libavformat)
#define AVFMTCTX_NOHEADER
static int get16(const uint8_t **pp, const uint8_t *p_end)
int eof_reached
true if eof reached
AVPacket * pkt
packet containing Audio/Video data
void * priv_data
Format private data.
int64_t last_pos
to detect seek
static int analyze(const uint8_t *buf, int size, int packet_size, int *index)
static void add_pid_to_pmt(MpegTSContext *ts, unsigned int programid, unsigned int pid)
void SetServiceCallback(void *opaque, int ret)
int64_t dts
Decompression timestamp in AVStream->time_base units; the time at which the packet is decompressed...
int bit_rate
Decoding: total stream bitrate in bit/s, 0 if not available.
#define AV_DISPOSITION_HEARING_IMPAIRED
static int parse_MP4IODescrTag(MP4DescrParseContext *d, int64_t off, int len)
#define AV_DISPOSITION_VISUAL_IMPAIRED
static void m4sl_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
union MpegTSFilter::@96 u
#define MAX_MP4_DESCR_COUNT
enum AVDiscard discard
Selects which packets can be discarded at will and do not need to be demuxed.
static void mpegts_find_stream_type(AVStream *st, uint32_t stream_type, const StreamType *types)
This structure stores compressed data.
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
static char * getstr8(const uint8_t **pp, const uint8_t *p_end)
int64_t pts
Presentation timestamp in AVStream->time_base units; the time at which the decompressed packet will b...
A dummy ID pointing at the start of subtitle codecs.
void SectionCallback(MpegTSFilter *f, const uint8_t *buf, int len)
AVStream * sub_st
stream for the embedded AC3 stream in HDMV TrueHD
if(!(ptr_align%ac->ptr_align)&&samples_align >=aligned_len)
static int mp4_read_iods(AVFormatContext *s, const uint8_t *buf, unsigned size, Mp4Descr *descr, int *descr_count, int max_descr_count)