Merge commit '9fb0de86'

* commit '9fb0de86':
  pcx: Consume the whole packet if giving up due to missing palette

Conflicts:
	libavcodec/pcx.c

See: b4e516e3Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/pcx.c

@@ -174,7 +174,7 @@ static int pcx_decode_frame(AVCodecContext *avctx, void *data, int *got_frame,
         }
         if (bytestream2_get_byte(&gb) != 12) {
             av_log(avctx, AV_LOG_ERROR, "expected palette after image data\n");
-            ret = AVERROR_INVALIDDATA;
+            ret = avpkt->size;
             goto end;
         }
     } else if (nplanes == 1) {   /* all packed formats, max. 16 colors */