Only mono 8kHz is supported.
---
libavcodec/amrnbdec.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/libavcodec/amrnbdec.c b/libavcodec/amrnbdec.c
index 2cb06a6..cc318ac 100644
--- a/libavcodec/amrnbdec.c
+++ b/libavcodec/amrnbdec.c
@@ -43,6 +43,7 @@
#include <string.h>
#include <math.h>
+#include "libavutil/audioconvert.h"
#include "avcodec.h"
#include "dsputil.h"
#include "libavutil/common.h"
@@ -154,7 +155,10 @@ static av_cold int amrnb_decode_init(AVCodecContext *avctx)
AMRContext *p = avctx->priv_data;
int i;
- avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
+ avctx->channels = 1;
+ avctx->channel_layout = AV_CH_LAYOUT_MONO;
+ avctx->sample_rate = 8000;
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLT;
// p->excitation always points to the same position in p->excitation_buf
p->excitation = &p->excitation_buf[PITCH_DELAY_MAX + LP_FILTER_ORDER + 1];
--
1.7.1
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