* qatar/master:
  lavc: Deprecate unused FF_ER_VERY_AGGRESSIVE
  x11grab: add show_region AVOption.
  x11grab: add follow_mouse AVOption.
  Do not convert RGB buffer at once when stride does not fit exact samples.

Conflicts:
	libswscale/swscale_unscaled.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This avoids a theoretically possible pointer arithmetic overflow
which would lead to a crash due to reading from NULL page.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Draw the current grabbing region for indication.
Signed-off-by: Yu-Jie Lin <livibetter@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

-follow_mouse centered|PIXELS
  move grabbing region to where mouse pointer at the center; or
  only move when pointer reaches within PIXELS to the edge.
Signed-off-by: Yu-Jie Lin <livibetter@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

* qatar/master:
  build: make examples build normally
Merged-by: Michael Niedermayer <michaelni@gmx.at>

When converting RGB format to RGB format with the same bits per sample,
unscaled path performs conversion on the whole buffer at once. For
non-multiple-of-16 BGR24 to RGB24 conversion it means that padding at the
end of line will be converted too. Since it may be of arbitrary length
(e.g. 8 bytes), operating on the whole buffer produces obviously wrong
results.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Allow sample_aspect_ratio information to be correctly propagated in
the filterchain.

Consistent with the pad and scale filters.

Previously, "dar" and "a" were documented like "input display aspect
ratio", but their actual value was "in_w/in_h".

In order to avoid to break scripts which rely on the "a" variable, the
patch keeps the same semantics but fixes the corresponding docs, and
fixes the semantics of the recently added "dar" variable, which
now correctly expresses the input Display Aspect Ratio value as
"(inw_w/in_h)*sar".

The link target was missing $(EXAMPLES)

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

* qatar/master:
  mxfdec: Include FF_INPUT_BUFFER_PADDING_SIZE when allocating extradata.
  H.264: tweak some other x86 asm for Atom
  probe: Fix insane flow control.
  mpegts: remove invalid error check
  s302m: use nondeprecated audio sample format API
  lavc: use designated initialisers for all codecs.
  x86: cabac: add operand size suffixes missing from 6c325765

Conflicts:
	libavcodec/ac3enc_float.c
	libavcodec/flacenc.c
	libavcodec/frwu.c
	libavcodec/pictordec.c
	libavcodec/qtrleenc.c
	libavcodec/v210enc.c
	libavcodec/wmv2dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This prevents out of bounds reads when extradata is being decoded.

avfilter_draw_slice() is already called in the end_frame() callback,
this avoids multiple calls. This is done by adding a null draw_slice()
callback.

In particular fix crash occurring with -vf transpose=3,hflip, fix trac
issue #371.

A loop control variable was shadowed inside the loop and never updated.

mpegts_read_header is used by both mpegts and mpegtsraw, so this
erro check is no longer valid.
Signed-off-by: Mike Williams <mike@mikebwilliams.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

It's more readable and less prone to breakage.

This fixes build with clang.
Signed-off-by: Mans Rullgard <mans@mansr.com>

* qatar/master:
  h263dec: Propagate AV_LOG_ERRORs from slice decoding through frame decoding with sufficient error recognition
  x86: cabac: don't load/store context values in asm
  H.264: optimize CABAC x86 asm for Atom
  vp3/theora: flush after seek.
  doc/fftools-common-opts: wording fixes missing from the previous commit.
  doc: document using AVOptions in fftools.
  cmdutils: add codec_opts parameter to setup_find_stream_info_opts()
  cmdutils: clarify documentation for filter_codec_opts()
  cmdutils: clarify documentation for setup_find_stream_info_opts()
  lavf: add forgotten attribute_deprecated to av_find_stream_info()
Merged-by: Michael Niedermayer <michaelni@gmx.at>

h263dec: Propagate AV_LOG_ERRORs from slice decoding through frame decoding with sufficient error recognition
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Inspection of compiled code shows gcc handles these fine on its own.
Benchmarking also shows no measurable speed difference.

Removing the remaining cases in get_cabac_bypass_sign_x86() does
cause more substantial changes to the compiled code with uncertain
impact.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Correct computation of implicit weight tables when referencing pictures
that are marked for long reference.

The current checks on MMCO parameters prohibits a "max long term frame index
plus 1" of 16 (frame idx of 15) for the "set max long term frame index" MMCO.
Fix this off-by-one error to allow the full range of legal values.

Avoid brittle and obfuscating reference to a global.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>