Merge commit 'b09cf8af'

* commit 'b09cf8af':
  libopusenc: check return value
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/libopusenc.c

@@ -316,7 +316,9 @@ static int libopus_encode(AVCodecContext *avctx, AVPacket *avpkt,
     int discard_padding;
 
     if (frame) {
-        ff_af_queue_add(&opus->afq, frame);
+        ret = ff_af_queue_add(&opus->afq, frame);
+        if (ret < 0)
+            return ret;
         if (frame->nb_samples < opus->opts.packet_size) {
             audio = opus->samples;
             memcpy(audio, frame->data[0], frame->nb_samples * sample_size);