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qtmux: Don't write invalid edit list start time.

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Avoid writing a negative number as a large positive
integer in an edit list when the first_ts is smaller
than the first_dts - which can happen when the first
packet received has a PTS but no DTS.

https://bugzilla.gnome.org/show_bug.cgi?id=759615
This commit is contained in:
Jan Schmidt 2015-12-18 05:17:15 +11:00
parent 675a4088e5
commit 774a32ff89
1 changed files with 4 additions and 2 deletions
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4
gst/isomp4/gstqtmux.c
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@ -2481,10 +2481,12 @@ gst_qt_mux_update_edit_lists (GstQTMux * qtmux)
/* has shift */
if (has_gap || (qtpad->dts_adjustment > 0)) {
GstClockTime ctts;
GstClockTime ctts = 0;
guint32 media_start;
if (qtpad->first_ts > qtpad->first_dts)
ctts = qtpad->first_ts - qtpad->first_dts;
media_start = gst_util_uint64_scale_round (ctts,
atom_trak_get_timescale (qtpad->trak), GST_SECOND);