}
-AVCodec ff_amrnb_decoder = {
+const AVCodec ff_amrnb_decoder = {
.name = "amrnb",
.long_name = NULL_IF_CONFIG_SMALL("AMR-NB (Adaptive Multi-Rate NarrowBand)"),
.type = AVMEDIA_TYPE_AUDIO,
.priv_data_size = sizeof(AMRContext),
.init = amrnb_decode_init,
.decode = amrnb_decode_frame,
- .capabilities = AV_CODEC_CAP_DR1,
+ .capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_CHANNEL_CONF,
.sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_FLT,
AV_SAMPLE_FMT_NONE },
};