42 #define MAX_RESYNC_SIZE 65536
44 #define MAX_PES_PAYLOAD 200*1024
46 #define MAX_MP4_DESCR_COUNT 16
87 #define MAX_PIDS_PER_PROGRAM 64
158 #define PES_START_SIZE 6
159 #define PES_HEADER_SIZE 9
160 #define MAX_PES_HEADER_SIZE (9 + 255)
190 for(i=0; i<ts->
nb_prg; i++)
191 if(ts->
prg[i].
id == programid)
218 for(i=0; i<ts->
nb_prg; i++) {
219 if(ts->
prg[i].
id == programid) {
243 int used = 0, discarded = 0;
256 for(i=0; i<ts->
nb_prg; i++) {
259 if(p->
pids[j] != pid)
273 return !used && discarded;
281 const uint8_t *buf,
int buf_size,
int is_start)
400 memset(stat, 0, packet_size*
sizeof(
int));
402 for(x=i=0; i<size-3; i++){
403 if(buf[i] == 0x47 && !(buf[i+1] & 0x80) && (buf[i+3] & 0x30)){
405 if(stat[x] > best_score){
412 if(x == packet_size) x= 0;
421 int score, fec_score, dvhs_score;
429 av_dlog(
NULL,
"score: %d, dvhs_score: %d, fec_score: %d \n",
430 score, dvhs_score, fec_score);
432 if (score > fec_score && score > dvhs_score)
return TS_PACKET_SIZE;
465 if ((p + 1) >= p_end)
481 len =
get8(&p, p_end);
484 if ((p + len) > p_end)
501 val =
get8(pp, p_end);
506 val =
get16(pp, p_end);
510 val =
get8(pp, p_end);
513 h->
version = (val >> 1) & 0x1f;
514 val =
get8(pp, p_end);
518 val =
get8(pp, p_end);
589 uint32_t stream_type,
const StreamType *types)
601 uint32_t stream_type, uint32_t prog_reg_desc)
612 "stream=%d stream_type=%x pid=%x prog_reg_desc=%.4s\n",
618 if (prog_reg_desc ==
AV_RL32(
"HDMV") &&
629 memcpy(sub_pes, pes,
sizeof(*sub_pes));
637 sub_st->
id = pes->
pid;
689 int au_start_flag = 0, au_end_flag = 0, ocr_flag = 0, idle_flag = 0;
690 int padding_flag = 0, padding_bits = 0, inst_bitrate_flag = 0;
691 int dts_flag = -1, cts_flag = -1;
700 au_start_flag = au_end_flag = 1;
710 if (!idle_flag && (!padding_flag || padding_bits != 0)) {
736 if (inst_bitrate_flag)
753 const uint8_t *buf,
int buf_size,
int is_start,
774 while (buf_size > 0) {
790 code = pes->
header[3] | 0x100;
819 if (code != 0x1bc && code != 0x1bf &&
820 code != 0x1f0 && code != 0x1f1 &&
821 code != 0x1ff && code != 0x1f2 &&
871 unsigned int flags, pes_ext, skip;
877 if ((flags & 0xc0) == 0x80) {
880 }
else if ((flags & 0xc0) == 0xc0) {
890 skip = (pes_ext >> 4) & 0xb;
893 if ((pes_ext & 0x41) == 0x01 &&
896 if ((r[0] & 0x7f) > 0 && (r[1] & 0x80) == 0)
907 p += sl_header_bytes;
908 buf_size -= sl_header_bytes;
913 if (buf_size > 0 && pes->
buffer) {
1009 (*len) -= new_off - *
off;
1044 if (!(id_flags & 0x0020)) {
1121 if (len < 0 || len1 > len || len1 <= 0) {
1122 av_log(d->
s,
AV_LOG_ERROR,
"Tag %x length violation new length %d bytes remaining %d\n", tag, len1, len);
1131 if (target_tag && tag != target_tag) {
1161 Mp4Descr *descr,
int *descr_count,
int max_descr_count)
1174 Mp4Descr *descr,
int *descr_count,
int max_descr_count)
1193 int mp4_descr_count = 0;
1197 p_end = section + section_len - 4;
1209 for (i = 0; i < mp4_descr_count; i++) {
1224 pes->
sl = mp4_descr[i].
sl;
1246 for (i = 0; i < mp4_descr_count; i++)
1247 av_free(mp4_descr[i].dec_config_descr);
1252 Mp4Descr *mp4_descr,
int mp4_descr_count,
int pid,
1256 int desc_len, desc_tag, desc_es_id;
1260 desc_tag =
get8(pp, desc_list_end);
1263 desc_len =
get8(pp, desc_list_end);
1266 desc_end = *pp + desc_len;
1267 if (desc_end > desc_list_end)
1270 av_dlog(fc,
"tag: 0x%02x len=%d\n", desc_tag, desc_len);
1278 desc_es_id =
get16(pp, desc_end);
1279 if (ts && ts->
pids[pid])
1281 for (i = 0; i < mp4_descr_count; i++)
1282 if (mp4_descr[i].dec_config_descr_len &&
1283 mp4_descr[i].es_id == desc_es_id) {
1296 get16(pp, desc_end);
1309 language[0] =
get8(pp, desc_end);
1310 language[1] =
get8(pp, desc_end);
1311 language[2] =
get8(pp, desc_end);
1316 language[0] =
get8(pp, desc_end);
1317 language[1] =
get8(pp, desc_end);
1318 language[2] =
get8(pp, desc_end);
1321 switch(
get8(pp, desc_end)) {
1345 for (i = 0; i + 4 <= desc_len; i += 4) {
1346 language[i + 0] =
get8(pp, desc_end);
1347 language[i + 1] =
get8(pp, desc_end);
1348 language[i + 2] =
get8(pp, desc_end);
1349 language[i + 3] =
',';
1350 switch (
get8(pp, desc_end)) {
1357 language[i - 1] = 0;
1380 const uint8_t *p, *p_end, *desc_list_end;
1381 int program_info_length, pcr_pid, pid, stream_type;
1383 uint32_t prog_reg_desc = 0;
1386 int mp4_descr_count = 0;
1392 p_end = section + section_len - 4;
1404 pcr_pid =
get16(&p, p_end);
1412 program_info_length =
get16(&p, p_end);
1413 if (program_info_length < 0)
1415 program_info_length &= 0xfff;
1416 while(program_info_length >= 2) {
1418 tag =
get8(&p, p_end);
1419 len =
get8(&p, p_end);
1421 av_dlog(ts->
stream,
"program tag: 0x%02x len=%d\n", tag, len);
1423 if(len > program_info_length - 2)
1426 program_info_length -= len + 2;
1433 }
else if (tag == 0x05 && len >= 4) {
1434 prog_reg_desc = bytestream_get_le32(&p);
1439 p += program_info_length;
1450 stream_type =
get8(&p, p_end);
1451 if (stream_type < 0)
1453 pid =
get16(&p, p_end);
1466 }
else if (stream_type != 0x13) {
1494 desc_list_len =
get16(&p, p_end);
1495 if (desc_list_len < 0)
1497 desc_list_len &= 0xfff;
1498 desc_list_end = p + desc_list_len;
1499 if (desc_list_end > p_end)
1503 mp4_descr, mp4_descr_count, pid, ts) < 0)
1506 if (pes && prog_reg_desc ==
AV_RL32(
"HDMV") && stream_type == 0x83 && pes->
sub_st) {
1515 for (i = 0; i < mp4_descr_count; i++)
1516 av_free(mp4_descr[i].dec_config_descr);
1529 p_end = section + section_len - 4;
1538 sid =
get16(&p, p_end);
1541 pmt_pid =
get16(&p, p_end);
1548 if (sid == 0x0000) {
1552 if (ts->
pids[pmt_pid])
1566 const uint8_t *p, *p_end, *desc_list_end, *desc_end;
1567 int onid, val, sid, desc_list_len, desc_tag, desc_len, service_type;
1568 char *
name, *provider_name;
1573 p_end = section + section_len - 4;
1579 onid =
get16(&p, p_end);
1582 val =
get8(&p, p_end);
1586 sid =
get16(&p, p_end);
1589 val =
get8(&p, p_end);
1592 desc_list_len =
get16(&p, p_end);
1593 if (desc_list_len < 0)
1595 desc_list_len &= 0xfff;
1596 desc_list_end = p + desc_list_len;
1597 if (desc_list_end > p_end)
1600 desc_tag =
get8(&p, desc_list_end);
1603 desc_len =
get8(&p, desc_list_end);
1604 desc_end = p + desc_len;
1605 if (desc_end > desc_list_end)
1609 desc_tag, desc_len);
1613 service_type =
get8(&p, p_end);
1614 if (service_type < 0)
1616 provider_name =
getstr8(&p, p_end);
1644 int len, pid, cc, expected_cc, cc_ok, afc, is_start, is_discontinuity,
1645 has_adaptation, has_payload;
1649 pid =
AV_RB16(packet + 1) & 0x1fff;
1652 is_start = packet[1] & 0x40;
1653 tss = ts->
pids[pid];
1656 tss = ts->
pids[pid];
1661 afc = (packet[3] >> 4) & 3;
1664 has_adaptation = afc & 2;
1665 has_payload = afc & 1;
1666 is_discontinuity = has_adaptation
1668 && (packet[5] & 0x80);
1671 cc = (packet[3] & 0xf);
1672 expected_cc = has_payload ? (tss->
last_cc + 1) & 0x0f : tss->
last_cc;
1673 cc_ok = pid == 0x1FFF
1676 || expected_cc == cc;
1681 "Continuity check failed for pid %d expected %d got %d\n",
1682 pid, expected_cc, cc);
1692 if (has_adaptation) {
1708 if (p + len > p_end)
1772 if ((*data)[0] != 0x47) {
1799 int packet_num, ret = 0;
1825 if (nb_packets != 0 && packet_num >= nb_packets)
1842 int score, fec_score, dvhs_score;
1844 #define CHECK_COUNT 10
1852 av_dlog(
NULL,
"score: %d, dvhs_score: %d, fec_score: %d \n",
1853 score, dvhs_score, fec_score);
1857 else if(dvhs_score > score && dvhs_score > fec_score && dvhs_score > 6)
return AVPROBE_SCORE_MAX + dvhs_score - CHECK_COUNT;
1871 afc = (packet[3] >> 4) & 3;
1881 if (!(flags & 0x10))
1886 *ppcr_high = ((int64_t)v << 1) | (p[4] >> 7);
1887 *ppcr_low = ((p[4] & 1) << 8) | p[5];
1902 if (len !=
sizeof(buf))
1910 if (s->
iformat == &ff_mpegts_demuxer) {
1931 int pcr_pid, pid, nb_packets, nb_pcrs, ret, pcr_l;
1932 int64_t pcrs[2], pcr_h;
1933 int packet_count[2];
1954 pid =
AV_RB16(data + 1) & 0x1fff;
1955 if ((pcr_pid == -1 || pcr_pid == pid) &&
1959 packet_count[nb_pcrs] = nb_packets;
1960 pcrs[nb_pcrs] = pcr_h * 300 + pcr_l;
1972 ts->
pcr_incr = (pcrs[1] - pcrs[0]) / (packet_count[1] - packet_count[0]);
1987 #define MAX_PACKET_READAHEAD ((128 * 1024) / 188)
1994 int64_t pcr_h, next_pcr_h, pos;
1995 int pcr_l, next_pcr_l;
2007 if (data != pkt->
data)
2018 if (
parse_pcr(&next_pcr_h, &next_pcr_l, pcr_buf) == 0) {
2020 ts->
pcr_incr = ((next_pcr_h - pcr_h) * 300 + (next_pcr_l - pcr_l)) /
2027 ts->
cur_pcr = pcr_h * 300 + pcr_l;
2061 if (!ret && pkt->
size < 0)
2084 int64_t *ppos, int64_t pos_limit)
2087 int64_t pos, timestamp;
2090 const int find_next= 1;
2097 if ((pcr_pid < 0 || (
AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
2098 parse_pcr(×tamp, &pcr_l, buf) == 0) {
2111 if ((pcr_pid < 0 || (
AV_RB16(buf + 1) & 0x1fff) == pcr_pid) &&
2112 parse_pcr(×tamp, &pcr_l, buf) == 0) {
2137 if(buf[1] & 0x40)
break;
2177 if (buf[0] != 0x47) {
2209 .
name =
"mpegtsraw",
2218 .priv_class = &mpegtsraw_class,