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audio: map channels=1,channel-mask=0 to MONO instead of NONE

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Fixes problem in audioconvert, which would end up using
a mixmatrix when converting between different mono format
because it thinks MONO positioning is different from
unpositioned channels, which is not the case in this
special case. The mixmatrix would end up being 0.0 so
audioconvert would convert to silence samples.

https://bugzilla.gnome.org/show_bug.cgi?id=724509
This commit is contained in:
Rafał Mużyło 2014-02-18 10:32:46 +00:00 committed by Tim-Philipp Müller
parent 465dfe4920
commit 5496d09eb4
1 changed files with 1 additions and 1 deletions
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2
gst-libs/gst/audio/audio-info.c
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@ -219,7 +219,7 @@ gst_audio_info_from_caps (GstAudioInfo * info, const GstCaps * caps)
goto no_channels;
if (!gst_structure_get (str, "channel-mask", GST_TYPE_BITMASK, &channel_mask,
NULL)) {
NULL) || (channel_mask == 0 && channels == 1)) {
if (channels == 1) {
position[0] = GST_AUDIO_CHANNEL_POSITION_MONO;
} else if (channels == 2) {