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Code Issues Releases Activity

avcodec/pcm-blurayenc: Don't presume every channel layout to be native

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The pcm_bluray encoder has AVCodec.ch_layouts set, so that
ff_encode_preinit() checks that the channel layout in use
is equivalent to one of the layouts from AVCodec.ch_layouts.
Yet equivalent is not the same as identical; in particular,
custom layouts equivalent to native layouts are possible
(and necessary if one wants to use the name/opaque fields
with an ordinary channel layout), so one must not simply
use AVChannelLayout.u.mask. Use av_channel_layout_subset()
instead.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-09-18 20:45:46 +02:00
parent cd335de53f
commit ce6af2df61
1 changed files with 1 additions and 1 deletions
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2
libavcodec/pcm-blurayenc.c
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@ -63,7 +63,7 @@ static av_cold int pcm_bluray_encode_init(AVCodecContext *avctx)
return AVERROR_BUG;
}
switch (avctx->ch_layout.u.mask) {
switch (av_channel_layout_subset(&avctx->ch_layout, ~(uint64_t)0)) {
case AV_CH_LAYOUT_MONO:
ch_layout = 1;
break;