Ensure that buffers returned by the default allocator are readable, or else

they're useless for outputting.

Commited in SoC by Bobby Bingham on 2007-08-17 22:52:18


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@12070 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavfilter/defaults.c

@@ -39,7 +39,9 @@ AVFilterPicRef *avfilter_default_get_video_buffer(AVFilterLink *link, int perms)
     ref->pic   = pic;
     ref->w     = link->w;
     ref->h     = link->h;
-    ref->perms = perms;
+
+    /* make sure the buffer gets read permission or it's useless for output */
+    ref->perms = perms | AV_PERM_READ;
 
     pic->refcount = 1;
     pic->format   = link->format;