Only mono 16kHz is supported.
---
libavcodec/amrwbdec.c | 11 ++++++++++-
1 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/libavcodec/amrwbdec.c b/libavcodec/amrwbdec.c
index 5cc96ab..3b9ca05 100644
--- a/libavcodec/amrwbdec.c
+++ b/libavcodec/amrwbdec.c
@@ -24,6 +24,7 @@
* AMR wideband decoder
*/
+#include "libavutil/audioconvert.h"
#include "libavutil/common.h"
#include "libavutil/lfg.h"
@@ -90,7 +91,15 @@ static av_cold int amrwb_decode_init(AVCodecContext *avctx)
AMRWBContext *ctx = avctx->priv_data;
int i;
- avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
+ if (avctx->channels > 1) {
+ av_log_missing_feature(avctx, "multi-channel AMR", 0);
+ return AVERROR_PATCHWELCOME;
+ }
+
+ avctx->channels = 1;
+ avctx->channel_layout = AV_CH_LAYOUT_MONO;
+ avctx->sample_rate = 16000;
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
av_lfg_init(&ctx->prng, 1);
--
1.7.1
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