fic: Simplify alpha blending

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
fic: Remove redundant clips

The equations can't overflow or underflow anyway.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
fic: Make warning message more accurate

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
fic: Support rendering cursors

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
On2 AVC decoder
Merge commit 'd7eb8f903338048c0b222d92357d67f5d3b54295'

* commit 'd7eb8f903338048c0b222d92357d67f5d3b54295':
  fic: Make warning message more accurate
  fic: Remove redundant clips
  fic: Simplify alpha blending

See: 14da7f9eb7d74524ef29ba6b7fb478720a00137f
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'e2834567d73bd1e46478ba67ac133cb8ef5f50fd'

* commit 'e2834567d73bd1e46478ba67ac133cb8ef5f50fd':
  On2 AVC decoder

Conflicts:
	Changelog
	configure
	libavcodec/avcodec.h
	libavcodec/codec_desc.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avdevice/jack_audio: use av_malloc_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avfilter/avcodec: Use av_mallocz_array()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avformat/h263dec: Fix h263 probe

The code was missing 1 bit in the src format

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