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);
}