If a fragmented stream doesn't have a tfdt, don't
reset the output timestamps at each fragment boundary
by erroneously using the default value of 0. Introduced
by commit 69fc48
https://bugzilla.gnome.org/show_bug.cgi?id=754230
/* If this is a GST_FORMAT_BYTES stream and there's a significant
* difference (1 sec.) between decode_ts and timestamp, prefer the
* former */
- if (!qtdemux->upstream_format_is_time
+ if (decode_ts != 0 && !qtdemux->upstream_format_is_time
&& ABSDIFF (decode_ts, timestamp) >
MAX (stream->duration_last_moof / 2,
GSTTIME_TO_QTSTREAMTIME (stream, GST_SECOND))) {