bink: Rename BinkDSPContext member so as not to clash with BlockDSPContext
Remove all Blackfin architecture optimizations

Blackfin is a painful platform to work with, no test machines are available
and the range of multimedia applications is dubious. Thus it only represents
a maintenance burden.
avutil/mathematics/av_add_stable: avoid unneeded variable

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/mathematics/av_add_stable: check for the common case of inc=1

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
av_add_stable: Add fast special case where step can be represented exactly

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil/mathematics/av_add_stable: Avoid av_cmp_q() call

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'b88cc5cca111132b42c2ee99662bfefe7652e3da'

* commit 'b88cc5cca111132b42c2ee99662bfefe7652e3da':
  bink: Rename BinkDSPContext member so as not to clash with BlockDSPContext

Conflicts:
	libavcodec/bink.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '880e2aa23645ed9871c66ee1cbd00f93c72d2d73'

* commit '880e2aa23645ed9871c66ee1cbd00f93c72d2d73':
  Remove all Blackfin architecture optimizations

Conflicts:
	libavcodec/bfin/dsputil.S
	libavcodec/bfin/dsputil_init.c
	libavcodec/bfin/fdct_bfin.S
	libavcodec/bfin/hpel_pixels_no_rnd.S
	libavcodec/bfin/hpeldsp_init.c
	libavcodec/bfin/idct_bfin.S
	libavcodec/bfin/mathops.h
	libavcodec/bfin/pixels.S
	libavcodec/bfin/pixels.h
	libavcodec/bfin/vp3dsp.S
	libavcodec/bfin/vp3dsp_init.c
	libavutil/bfin/asm.h
	libavutil/bfin/attributes.h
	libswscale/bfin/internal_bfin.S
	libswscale/bfin/swscale_bfin.c
	libswscale/bfin/yuv2rgb_bfin.c
	libswscale/swscale_internal.h
	libswscale/version.h

If someone wants to maintain blackfin support in FFmpeg, please contact
ffmpeg-devel@ffmpeg.org

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

Based on sh4/README
Suggested-by: jamrial
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Support raw dvdsub palette as stored on normal dvd's

This is how the palette is stored on dvd's. Currently
only xbmc passes the palette information to libavcodec
this way.
Check return value of avio_seek and avoid modifying state if it fails

The code still modifies state if the timestamp is not found. Not
sure exactly how to avoid that.
asf hacks
if av_read_packet returns AVERROR_IO, we are done. ffmpeg's codecs might or might not handle returning any completed demuxed packets correctly
added: Ticket #7187, TV Teletext support for DVB EBU Teletext streams
Don't accept mpegts PMT that isn't current
Don't reparse PMT unless it's version has changed
Read PID timestamps as well as PCR timestamps to find location in mpegts stream
Get stream durations using read_timestamp
changed: allow 4 second skew between streams in mov before attempting to seek
fixed: memleak in mpegts demuxer on some malformed (??) mpegts files with too large pes packets

at-visions sample file brokenStream.mpg