34l: free RV3/4 context variables at the end

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@15652 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/rv34.c

@@ -1329,6 +1329,9 @@ av_cold int ff_rv34_decode_end(AVCodecContext *avctx)
     av_freep(&r->intra_types_hist);
     r->intra_types = NULL;
     av_freep(&r->mb_type);
+    av_freep(&r->cbp_luma);
+    av_freep(&r->cbp_chroma);
+    av_freep(&r->deblock_coefs);
 
     return 0;
 }