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libavformat/utils: Only consider dvb teletext timestamps for start time when they are consistent with the rest. 

This fixes Ticket51.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-05-12 03:40:21 +02:00
parent b8a4b0152a
commit 4ea216e761
1 changed files with 8 additions and 1 deletions
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9
libavformat/utils.c
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@ -1797,18 +1797,23 @@ static int av_has_duration(AVFormatContext *ic)
*/
static void av_update_stream_timings(AVFormatContext *ic)
{
int64_t start_time, start_time1, end_time, end_time1;
int64_t start_time, start_time1, start_time_text, end_time, end_time1;
int64_t duration, duration1;
int i;
AVStream *st;
start_time = INT64_MAX;
start_time_text = INT64_MAX;
end_time = INT64_MIN;
duration = INT64_MIN;
for(i = 0;i < ic->nb_streams; i++) {
st = ic->streams[i];
if (st->start_time != AV_NOPTS_VALUE && st->time_base.den) {
start_time1= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
if (st->codec->codec_id == CODEC_ID_DVB_TELETEXT) {
if (start_time1 < start_time_text)
start_time_text = start_time1;
} else
if (start_time1 < start_time)
start_time = start_time1;
if (st->duration != AV_NOPTS_VALUE) {
@ -1824,6 +1829,8 @@ static void av_update_stream_timings(AVFormatContext *ic)
duration = duration1;
}
}
if (start_time == INT64_MAX || (start_time > start_time_text && start_time - start_time_text < AV_TIME_BASE))
start_time = start_time_text;
if (start_time != INT64_MAX) {
ic->start_time = start_time;
if (end_time != INT64_MIN) {