hlsenc: stand alone hls segmenter

Simplifies usage but has higher latency.
pixdesc: add av_pix_fmt_get_chroma_sub_sample

Deprecate avcodec_get_chroma_sub_sample.
avcodec: remove ff_is_hwaccel_pix_fmt

It is used only in one place and is unlikely it would be needed
elsewhere.
libtheoraenc: add missing pixdesc.h header

Was left out from c1a02e884ac785033baab356a5437adf057a4189.
x86: h264_weight_10bit: port to cpuflags
Drop broken and unused CABAC test program.
x86: mmx2 ---> mmxext in asm constructs
vmnc: check input size before reading chunk header, fix overread

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
aasc: check before reading the first 4 byte, fix overread

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
mpeg12data: increase size of ff_mpeg1_default_intra_matrix to prevent harmless overreads from crashing

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
8bps: check index against buffer size before reading line length pointer.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
ffserver: prefer av_asprintf over malloc+snprintf for Launch setting.
ffserver: fix NULL dereference with quoted Stream name.
segment: fix NULL pointer dereference in seg_write_header()

Since the pointer `oc' is NULL, oc->oformat->name will cause a null
pointer dereference.  This patch changes it to seg->oformat->name.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
Merge commit '5e9c6ef8f3beb9ed7b271654a82349ac90fe43f2'

* commit '5e9c6ef8f3beb9ed7b271654a82349ac90fe43f2':
  x86: h264_weight_10bit: port to cpuflags
  libtheoraenc: add missing pixdesc.h header
  avcodec: remove ff_is_hwaccel_pix_fmt
  pixdesc: add av_pix_fmt_get_chroma_sub_sample
  hlsenc: stand alone hls segmenter

Conflicts:
	doc/muxers.texi
	libavcodec/ffv1enc.c
	libavcodec/imgconvert.c
	libavcodec/mpegvideo_enc.c
	libavcodec/tiffenc.c
	libavformat/Makefile
	libavformat/allformats.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Remove deprecation of avcodec_get_chroma_sub_sample.

Add explanations what the difference between the 2 functions are and
when either should be used.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'da39cac8def7ea73cad2fa2b611209663c7abe2c'

Not merged, its not broken

* commit 'da39cac8def7ea73cad2fa2b611209663c7abe2c':
  Drop broken and unused CABAC test program.

Conflicts:
	libavcodec/Makefile
	libavcodec/cabac.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  x86: mmx2 ---> mmxext in asm constructs

Conflicts:
	libavcodec/x86/h264_chromamc_10bit.asm
	libavcodec/x86/h264_deblock.asm
	libavcodec/x86/h264dsp_init.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
mov: Dont try to calculate with unknown durations, fix division by 0

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avutil: change GET_UTF8 to not use av_log2()

This removes an inter-library dependency on ff_log2_tab causing
linking errors in some configurations.

Signed-off-by: Mans Rullgard <mans@mansr.com>