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qtmux: Do not infer DTS on buffers from sparse streams.

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DTS delta is used to calculate sample duration. If buffer has missing DTS, we take either segment start or previous buffer end time, whichever is later.
This must only be done for non sparse streams, sparse streams can have gaps between buffers (which is handled later by adding extra empty buffer with duration that fills the gap)

https://bugzilla.gnome.org/show_bug.cgi?id=737095
This commit is contained in:
Matej Knopp 2014-09-23 23:33:37 +02:00 committed by Thiago Santos
parent 36140ccf69
commit 9f85dfd733
1 changed files with 7 additions and 3 deletions
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10
gst/isomp4/gstqtmux.c
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@ -2274,9 +2274,13 @@ gst_qt_mux_add_buffer (GstQTMux * qtmux, GstQTPad * pad, GstBuffer * buf)
last_buf = pad->last_buf;
/* if buffer has missing DTS, we take either segment start or previous buffer end time,
which ever is later */
if (buf && !GST_BUFFER_DTS_IS_VALID (buf)) {
/* DTS delta is used to calculate sample duration.
* If buffer has missing DTS, we take either segment start or
* previous buffer end time, whichever is later.
* This must only be done for non sparse streams, sparse streams
* can have gaps between buffers (which is handled later by adding
* extra empty buffer with duration that fills the gap). */
if (!pad->sparse && buf && !GST_BUFFER_DTS_IS_VALID (buf)) {
GstClockTime last_buf_duration = last_buf
&& GST_BUFFER_DURATION_IS_VALID (last_buf) ?
GST_BUFFER_DURATION (last_buf) : 0;