[Bug 737127] interleave: interleaving does not respect the channel positions default order
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Thu Oct 2 00:22:27 PDT 2014
https://bugzilla.gnome.org/show_bug.cgi?id=737127
GStreamer | gst-plugins-good | git
Sebastian Dröge (slomo) <slomo> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|HEAD |1.5.1
--- Comment #4 from Sebastian Dröge (slomo) <slomo at coaxion.net> 2014-10-02 07:22:15 UTC ---
Thanks for the patch :)
commit 7ae7f657fae542f06ba4c22d65a2084f5a4a3a5d
Author: Antonio Ospite <ao2 at ao2.it>
Date: Tue Sep 23 10:48:09 2014 +0200
interleave: interleave samples following the Default Channel Ordering
In order to have a full mapping between channel positions in the audio
stream and loudspeaker positions, the channel-mask alone is not enough:
the channels must be interleaved following some Default Channel Ordering
as mentioned in the WAVEFORMATEXTENSIBLE[1] specification.
As a Default Channel Ordering use the one implied by
GstAudioChannelPosition which follows the ordering defined in SMPTE
2036-2-2008[2].
NOTE that the relative order in the Top Layer is not exactly the same as
the one from the WAVEFORMATEXTENSIBLE[1] specification; let's hope users
using so may channels are already aware of such discrepancies.
[1]
http://msdn.microsoft.com/en-us/library/windows/hardware/dn653308%28v=vs.85%29.aspx
[2] http://www.itu.int/dms_pub/itu-r/opb/rep/R-REP-BS.2159-2-2011-PDF-E.pdf
Fixes: https://bugzilla.gnome.org/show_bug.cgi?id=737127
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