* qatar/master:
  ARM: allow runtime masking of CPU features
  dsputil: remove unused functions
  mov: Treat keyframe indexes as 1-origin if starting at non-zero.
  mov: Take stps entries into consideration also about key_off.
  Remove lowres video decoding

Conflicts:
	ffmpeg.c
	ffplay.c
	libavcodec/arm/vp8dsp_init_arm.c
	libavcodec/libopenjpegdec.c
	libavcodec/mjpegdec.c
	libavcodec/mpegvideo.c
	libavcodec/utils.c
	libavformat/mov.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #1234.

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

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

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

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

This ended up corrupting data structures and may possibly
lead to a double free.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes a division by 0

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This fixes a null ptr dereference with attachments

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes null ptr dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Before this the context could become inconsistent, this lead to a null ptr
dereference.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This allows masking CPU features with the -cpuflags avconv option
which is useful for testing different optimisations without rebuilding.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Also fix a typo in the next line.

Fixes null ptr dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes a null ptr dereference.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes slight overread.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  avcodec: remove AVCodecContext.dsp_mask
  avconv: fix a segfault when default encoder for a format doesn't exist.
  utvideo: general cosmetics
  aac: Handle HE-AACv2 when sniffing a channel order.
  movenc: Support high sample rates in isomedia formats by setting the sample rate field in stsd to 0.
  xxan: Remove write-only variable in xan_decode_frame_type0().
  ivi_common: Initialize a variable at declaration in ff_ivi_decode_blocks().

Conflicts:
	ffmpeg.c
	libavcodec/utvideo.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Fixes ticket #743.

Reviewed-by: Paul B Mahol

Fixes crash

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes out of array reads

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

These functions were left unused by the lowres removal.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Splitted files don't start always from a sync sample.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

This feature is complex, of questionable utility, and slows down
normal decoding.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This removes all references to AVCodecContext.dsp_mask and marks
it for eviction at the next version bump.  It has been superseded
by av_set_cpu_flag_mask() which, unlike this field, works everywhere.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Fixes out of array writes.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Mashiat Sarker Shakkhar <mashiat.sarker@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes sporadic decode failures and trac ticket #997.

Fix warning:
libavfilter/vf_setfield.c: In function ‘init’:
libavfilter/vf_setfield.c:64:20: warning: too many arguments for format [-Wformat-extra-args]

The new name better reflects the meaning of the variable, after the
recent change.

Add "prog" parameter value, and deprecate numeric values.
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Fail earlier and with a more descriptive error message.

This broke compilation on darwin, revert until a better solution is found.

This reverts commit a812b599.