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mpegts: add and use mpegts_get_dts() 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-10-21 16:11:00 +02:00
parent 04ac0d7994
commit de9862a95e
2 changed files with 48 additions and 20 deletions
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34
libavformat/mpegts.c
View File

@ -1760,6 +1760,33 @@ static int64_t mpegts_get_pcr(AVFormatContext *s, int stream_index,
return AV_NOPTS_VALUE;
}
static int64_t mpegts_get_dts(AVFormatContext *s, int stream_index,
int64_t *ppos, int64_t pos_limit)
{
MpegTSContext *ts = s->priv_data;
int64_t pos, timestamp;
pos = ((*ppos + ts->raw_packet_size - 1 - ts->pos47) / ts->raw_packet_size) * ts->raw_packet_size + ts->pos47;
ff_read_frame_flush(s);
if (avio_seek(s->pb, pos, SEEK_SET) < 0)
return AV_NOPTS_VALUE;
while(pos < pos_limit) {
int ret;
AVPacket pkt;
av_init_packet(&pkt);
ret= av_read_frame(s, &pkt);
if(ret < 0)
return AV_NOPTS_VALUE;
av_free_packet(&pkt);
if(pkt.stream_index == stream_index && pkt.dts != AV_NOPTS_VALUE){
*ppos= pkt.pos;
return pkt.dts;
}
pos = pkt.pos;
}
return AV_NOPTS_VALUE;
}
#ifdef USE_SYNCPOINT_SEARCH
static int read_seek2(AVFormatContext *s,
@ -1853,7 +1880,8 @@ static int read_seek(AVFormatContext *s, int stream_index, int64_t target_ts, in
if(av_seek_frame_binary(s, stream_index, target_ts, flags) < 0)
return -1;
ff_read_frame_flush(s);
return 0;
pos= avio_tell(s->pb);
for(;;) {
@ -1936,7 +1964,7 @@ AVInputFormat ff_mpegts_demuxer = {
.read_packet = mpegts_read_packet,
.read_close = mpegts_read_close,
.read_seek = read_seek,
.read_timestamp = mpegts_get_pcr,
.read_timestamp = mpegts_get_dts,
.flags = AVFMT_SHOW_IDS|AVFMT_TS_DISCONT,
#ifdef USE_SYNCPOINT_SEARCH
.read_seek2 = read_seek2,
@ -1951,7 +1979,7 @@ AVInputFormat ff_mpegtsraw_demuxer = {
.read_packet = mpegts_raw_read_packet,
.read_close = mpegts_read_close,
.read_seek = read_seek,
.read_timestamp = mpegts_get_pcr,
.read_timestamp = mpegts_get_dts,
.flags = AVFMT_SHOW_IDS|AVFMT_TS_DISCONT,
#ifdef USE_SYNCPOINT_SEARCH
.read_seek2 = read_seek2,

34
tests/ref/seek/lavf_ts
View File

@ -1,53 +1,53 @@
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st:-1 flags:0 ts:-1.000000
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st:-1 flags:1 ts: 1.894167
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 0 flags:0 dts: 1.880000 pts: 1.920000 pos: 216012 size: 17441
ret: 0 st: 0 flags:0 ts: 0.788333
ret: 0 st: 0 flags:0 dts: 1.520000 pts: 1.560000 pos: 74260 size: 13388
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st: 0 flags:1 ts:-0.317500
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 1 flags:0 ts: 2.576667
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 1 flags:1 ts: 1.470833
ret: 0 st: 0 flags:0 dts: 2.160000 pts: 2.200000 pos: 325240 size: 12679
ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.400000 pos: 172584 size: 208
ret: 0 st:-1 flags:0 ts: 0.365002
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st:-1 flags:1 ts:-0.740831
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 0 flags:0 ts: 2.153333
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 0 flags:0 dts: 2.160000 pts: 2.200000 pos: 325240 size: 12679
ret: 0 st: 0 flags:1 ts: 1.047500
ret: 0 st: 0 flags:0 dts: 1.680000 pts: 1.720000 pos: 130096 size: 14133
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 1 flags:0 ts:-0.058333
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 1 flags:1 dts: 1.765711 pts: 1.765711 pos: 322232 size: 209
ret: 0 st: 1 flags:1 ts: 2.835833
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st:-1 flags:0 ts: 1.730004
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.400000 pos: 172584 size: 208
ret: 0 st:-1 flags:1 ts: 0.624171
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 0 flags:0 ts:-0.481667
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st: 0 flags:1 ts: 2.412500
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 1 flags:0 ts: 1.306667
ret: 0 st: 0 flags:0 dts: 2.080000 pts: 2.120000 pos: 294032 size: 13839
ret: 0 st: 1 flags:1 dts: 1.765711 pts: 1.765711 pos: 322232 size: 209
ret: 0 st: 1 flags:1 ts: 0.200844
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.400000 pos: 172584 size: 208
ret: 0 st:-1 flags:0 ts:-0.904994
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st:-1 flags:1 ts: 1.989173
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 0 flags:0 dts: 1.960000 pts: 2.000000 pos: 250980 size: 13438
ret: 0 st: 0 flags:0 ts: 0.883344
ret: 0 st: 0 flags:0 dts: 1.600000 pts: 1.640000 pos: 102836 size: 12781
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st: 0 flags:1 ts:-0.222489
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801
ret: 0 st: 1 flags:0 ts: 2.671678
ret: 0 st: 1 flags:1 dts: 2.131433 pts: 2.131433 pos: 403636 size: 209
ret: 0 st: 1 flags:1 ts: 1.565844
ret: 0 st: 0 flags:0 dts: 2.240000 pts: 2.280000 pos: 350996 size: 11307
ret: 0 st: 1 flags:1 dts: 1.400000 pts: 1.400000 pos: 172584 size: 208
ret: 0 st:-1 flags:0 ts: 0.460008
ret: 0 st: 0 flags:0 dts: 1.440000 pts: 1.480000 pos: 44932 size: 14502
ret: 0 st: 0 flags:0 dts: 1.400000 pts: 1.440000 pos: 27072 size: 16433
ret: 0 st:-1 flags:1 ts:-0.645825
ret: 0 st: 0 flags:1 dts: 1.360000 pts: 1.400000 pos: 564 size: 24801