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libff: Seek to frame 0 for sources with no duration

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This commit is contained in:
Richard Stanway 2016-04-25 01:04:39 +02:00
parent 5edc0c9580
commit dd6f8120b3
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GPG Key ID: AAC1E5265D71B3FD
1 changed files with 8 additions and 3 deletions
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11
deps/libff/libff/ff-demuxer.c vendored
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@ -502,7 +502,7 @@ static bool handle_seek(struct ff_demuxer *demuxer)
seek_stream = demuxer->audio_decoder->stream;
}
if (seek_stream != NULL) {
if (seek_stream != NULL && demuxer->format_context->duration != AV_NOPTS_VALUE) {
seek_target = av_rescale_q(seek_target,
AV_TIME_BASE_Q,
seek_stream->time_base);
@ -531,8 +531,13 @@ static bool handle_seek(struct ff_demuxer *demuxer)
static void seek_beginning(struct ff_demuxer *demuxer)
{
demuxer->seek_flags = AVSEEK_FLAG_BACKWARD;
demuxer->seek_pos = demuxer->format_context->start_time;
if (demuxer->format_context->duration == AV_NOPTS_VALUE) {
demuxer->seek_flags = AVSEEK_FLAG_FRAME;
demuxer->seek_pos = 0;
} else {
demuxer->seek_flags = AVSEEK_FLAG_BACKWARD;
demuxer->seek_pos = demuxer->format_context->start_time;
}
demuxer->seek_request = true;
demuxer->seek_flush = false;
av_log(NULL, AV_LOG_VERBOSE, "looping media %s", demuxer->input);