Merge commit '17c45d4d056d0e10ecb88b424ec9e68be398da5e'

* commit '17c45d4d056d0e10ecb88b424ec9e68be398da5e':
  libtheora: Check frame allocation

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/libtheoraenc.c

@@ -267,6 +267,8 @@ static av_cold int encode_init(AVCodecContext* avc_context)
 
     /* Set up the output AVFrame */
     avc_context->coded_frame = av_frame_alloc();
+    if (!avc_context->coded_frame)
+        return AVERROR(ENOMEM);
 
     return 0;
 }