Merge remote-tracking branch 'qatar/master'

* qatar/master:
  movenc: fix NULL reference in mov_write_tkhd_tag
  rmdec: Reject invalid deinterleaving parameters
  rv34: Fix potential overreads
  rv34: Fix buffer size used for MC of B frames after a resolution change
  rv34: Avoid NULL dereference on corrupted bitstream
  rv10: Reject slices that does not have the same type as the first one
  vf_yadif: add an option to enable/disable deinterlacing based on src frame "interlaced" flag
  vsrc_color: set output pos values to -1
  vsrc_color: add @file doxy
  vsrc_buffer: remove duplicated file description
  eval: implement not() expression
  eval: add sqrt function for computing the square root
  rmdec: use the deinterleaving mode and not the codec when creating audio packets.
  lavf: Fix context pointer in av_open_input_stream when avformat_open_input fails

Conflicts:
	doc/eval.texi
	doc/filters.texi
	libavcodec/rv10.c
	libavfilter/vsrc_color.c
	libavformat/rmdec.c
	libavutil/avutil.h
	libavutil/eval.c
	tests/ref/fate/eval

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

libavformat/utils.c

@@ -476,8 +476,8 @@ int av_open_input_stream(AVFormatContext **ic_ptr,
         goto fail;
     ic->pb = ic->pb ? ic->pb : pb; // don't leak custom pb if it wasn't set above
 
-    *ic_ptr = ic;
 fail:
+    *ic_ptr = ic;
     av_dict_free(&opts);
     return err;
 }