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-rw-r--r--libavcodec/flac.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/libavcodec/flac.c b/libavcodec/flac.c
index b3e38472ae..e6a8ab8370 100644
--- a/libavcodec/flac.c
+++ b/libavcodec/flac.c
@@ -225,7 +225,10 @@ void avpriv_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *
avctx->channels = s->channels;
avctx->sample_rate = s->samplerate;
avctx->bits_per_raw_sample = s->bps;
- ff_flac_set_channel_layout(avctx);
+
+ if (!avctx->channel_layout ||
+ av_get_channel_layout_nb_channels(avctx->channel_layout) != avctx->channels)
+ ff_flac_set_channel_layout(avctx);
s->samples = get_bits_long(&gb, 32) << 4;
s->samples |= get_bits(&gb, 4);