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lavc: make up a fake frame channel layout when there is no real one.

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This should ensure that a valid channel layout is always set on a frame,
until a better solution is implemented.
This commit is contained in:
Anton Khirnov 2013-02-11 08:13:22 +01:00
parent 192f1984b1
commit 2eba9087f3
1 changed files with 22 additions and 2 deletions
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24
libavcodec/utils.c
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@ -569,8 +569,28 @@ int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
frame->sample_rate = avctx->sample_rate;
if (frame->format < 0)
frame->format = avctx->sample_fmt;
if (!frame->channel_layout)
frame->channel_layout = avctx->channel_layout;
if (!frame->channel_layout) {
if (avctx->channel_layout) {
if (av_get_channel_layout_nb_channels(avctx->channel_layout) !=
avctx->channels) {
av_log(avctx, AV_LOG_ERROR, "Inconsistent channel "
"configuration.\n");
return AVERROR(EINVAL);
}
frame->channel_layout = avctx->channel_layout;
} else {
if (avctx->channels > FF_SANE_NB_CHANNELS) {
av_log(avctx, AV_LOG_ERROR, "Too many channels: %d.\n",
avctx->channels);
return AVERROR(ENOSYS);
}
frame->channel_layout = av_get_default_channel_layout(avctx->channels);
if (!frame->channel_layout)
frame->channel_layout = (1ULL << avctx->channels) - 1;
}
}
break;
default: return AVERROR(EINVAL);
}