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path: root/libavformat/mpegts.c
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Diffstat (limited to 'libavformat/mpegts.c')
-rw-r--r--libavformat/mpegts.c76
1 files changed, 54 insertions, 22 deletions
diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index 6452861e38..89109c0689 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -19,12 +19,13 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-//#define DEBUG
-//#define DEBUG_SEEK
//#define USE_SYNCPOINT_SEARCH
#include "libavutil/crc.h"
#include "libavutil/intreadwrite.h"
+#include "libavutil/log.h"
+#include "libavutil/dict.h"
+#include "libavutil/opt.h"
#include "libavcodec/bytestream.h"
#include "avformat.h"
#include "mpegts.h"
@@ -86,6 +87,7 @@ struct Program {
};
struct MpegTSContext {
+ const AVClass *class;
/* user data */
AVFormatContext *stream;
/** raw packet size, including FEC if present */
@@ -122,6 +124,19 @@ struct MpegTSContext {
MpegTSFilter *pids[NB_PID_MAX];
};
+static const AVOption options[] = {
+ {"compute_pcr", "Compute exact PCR for each transport stream packet.", offsetof(MpegTSContext, mpeg2ts_compute_pcr), FF_OPT_TYPE_INT,
+ {.dbl = 0}, 0, 1, AV_OPT_FLAG_DECODING_PARAM },
+ { NULL },
+};
+
+static const AVClass mpegtsraw_class = {
+ .class_name = "mpegtsraw demuxer",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
/* TS stream handling */
enum MpegTSState {
@@ -205,6 +220,17 @@ static void add_pid_to_pmt(MpegTSContext *ts, unsigned int programid, unsigned i
p->pids[p->nb_pids++] = pid;
}
+static void set_pcr_pid(AVFormatContext *s, unsigned int programid, unsigned int pid)
+{
+ int i;
+ for(i=0; i<s->nb_programs; i++) {
+ if(s->programs[i]->id == programid) {
+ s->programs[i]->pcr_pid = pid;
+ break;
+ }
+ }
+}
+
/**
* \brief discard_pid() decides if the pid is to be discarded according
* to caller's programs selection
@@ -928,7 +954,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
language[1] = get8(pp, desc_end);
language[2] = get8(pp, desc_end);
language[3] = 0;
- av_metadata_set2(&st->metadata, "language", language, 0);
+ av_dict_set(&st->metadata, "language", language, 0);
break;
case 0x59: /* subtitling descriptor */
language[0] = get8(pp, desc_end);
@@ -957,7 +983,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
}
}
*pp += 4;
- av_metadata_set2(&st->metadata, "language", language, 0);
+ av_dict_set(&st->metadata, "language", language, 0);
break;
case 0x0a: /* ISO 639 language descriptor */
for (i = 0; i + 4 <= desc_len; i += 4) {
@@ -973,7 +999,7 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
}
if (i) {
language[i - 1] = 0;
- av_metadata_set2(&st->metadata, "language", language, 0);
+ av_dict_set(&st->metadata, "language", language, 0);
}
break;
case 0x05: /* registration descriptor */
@@ -983,6 +1009,9 @@ int ff_parse_mpeg2_descriptor(AVFormatContext *fc, AVStream *st, int stream_type
stream_type == STREAM_TYPE_PRIVATE_DATA)
mpegts_find_stream_type(st, st->codec->codec_tag, REGD_types);
break;
+ case 0x52: /* stream identifier descriptor */
+ st->stream_identifier = 1 + get8(pp, desc_end);
+ break;
default:
break;
}
@@ -1004,10 +1033,8 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
int mp4_dec_config_descr_len = 0;
int mp4_es_id = 0;
-#ifdef DEBUG
av_dlog(ts->stream, "PMT: len %i\n", section_len);
- av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
-#endif
+ hex_dump_debug(ts->stream, (uint8_t *)section, section_len);
p_end = section + section_len - 4;
p = section;
@@ -1025,6 +1052,7 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
if (pcr_pid < 0)
return;
add_pid_to_pmt(ts, h->id, pcr_pid);
+ set_pcr_pid(ts->stream, h->id, pcr_pid);
av_dlog(ts->stream, "pcr_pid=0x%x\n", pcr_pid);
@@ -1123,11 +1151,11 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
SectionHeader h1, *h = &h1;
const uint8_t *p, *p_end;
int sid, pmt_pid;
+ AVProgram *program;
-#ifdef DEBUG
av_dlog(ts->stream, "PAT:\n");
- av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
-#endif
+ hex_dump_debug(ts->stream, (uint8_t *)section, section_len);
+
p_end = section + section_len - 4;
p = section;
if (parse_section_header(h, &p, p_end) < 0)
@@ -1135,6 +1163,8 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
if (h->tid != PAT_TID)
return;
+ ts->stream->ts_id = h->id;
+
clear_programs(ts);
for(;;) {
sid = get16(&p, p_end);
@@ -1149,7 +1179,9 @@ static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
if (sid == 0x0000) {
/* NIT info */
} else {
- av_new_program(ts->stream, sid);
+ program = av_new_program(ts->stream, sid);
+ program->program_num = sid;
+ program->pmt_pid = pmt_pid;
if (ts->pids[pmt_pid])
mpegts_close_filter(ts, ts->pids[pmt_pid]);
mpegts_open_section_filter(ts, pmt_pid, pmt_cb, ts, 1);
@@ -1168,10 +1200,8 @@ static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
int onid, val, sid, desc_list_len, desc_tag, desc_len, service_type;
char *name, *provider_name;
-#ifdef DEBUG
av_dlog(ts->stream, "SDT:\n");
- av_hex_dump_log(ts->stream, AV_LOG_DEBUG, (uint8_t *)section, section_len);
-#endif
+ hex_dump_debug(ts->stream, (uint8_t *)section, section_len);
p_end = section + section_len - 4;
p = section;
@@ -1222,8 +1252,8 @@ static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
if (name) {
AVProgram *program = av_new_program(ts->stream, sid);
if(program) {
- av_metadata_set2(&program->metadata, "service_name", name, 0);
- av_metadata_set2(&program->metadata, "service_provider", provider_name, 0);
+ av_dict_set(&program->metadata, "service_name", name, 0);
+ av_dict_set(&program->metadata, "service_provider", provider_name, 0);
}
}
av_free(name);
@@ -1460,13 +1490,16 @@ static int mpegts_read_header(AVFormatContext *s,
int len;
int64_t pos;
+#if FF_API_FORMAT_PARAMETERS
if (ap) {
- ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
+ if (ap->mpeg2ts_compute_pcr)
+ ts->mpeg2ts_compute_pcr = ap->mpeg2ts_compute_pcr;
if(ap->mpeg2ts_raw){
av_log(s, AV_LOG_ERROR, "use mpegtsraw_demuxer!\n");
return -1;
}
}
+#endif
/* read the first 1024 bytes to get packet size */
pos = avio_tell(pb);
@@ -1544,10 +1577,8 @@ static int mpegts_read_header(AVFormatContext *s,
s->bit_rate = (TS_PACKET_SIZE * 8) * 27e6 / ts->pcr_incr;
st->codec->bit_rate = s->bit_rate;
st->start_time = ts->cur_pcr;
-#if 0
- av_log(ts->stream, AV_LOG_DEBUG, "start=%0.3f pcr=%0.3f incr=%d\n",
- st->start_time / 1000000.0, pcrs[0] / 27e6, ts->pcr_incr);
-#endif
+ av_dlog(ts->stream, "start=%0.3f pcr=%0.3f incr=%d\n",
+ st->start_time / 1000000.0, pcrs[0] / 27e6, ts->pcr_incr);
}
avio_seek(pb, pos, SEEK_SET);
@@ -1888,4 +1919,5 @@ AVInputFormat ff_mpegtsraw_demuxer = {
#ifdef USE_SYNCPOINT_SEARCH
.read_seek2 = read_seek2,
#endif
+ .priv_class = &mpegtsraw_class,
};
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-20 23:15:22 +0300