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qtmux: move subtitle layer above video and set alternate group

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layer -1 is above video, that is 0
And having all subtitles in alternate group 2 means that only one
should be selected at a time.

https://bugzilla.gnome.org/show_bug.cgi?id=737095
This commit is contained in:
Matej Knopp 2014-09-23 19:06:18 +02:00 committed by Thiago Santos
parent 5765db50a1
commit f57e9c4516
1 changed files with 3 additions and 0 deletions
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3
gst/isomp4/atoms.c
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@ -3426,6 +3426,9 @@ atom_trak_set_subtitle_commons (AtomTRAK * trak, AtomsContext * context)
{
atom_trak_set_subtitle (trak, context);
trak->mdia.mdhd.time_info.timescale = 1000;
trak->tkhd.alternate_group = 2; /* same for all subtitles */
trak->tkhd.layer = -1; /* above video (layer 0) */
}
void