* qatar/master:
  doxygen: Consistently use '@' instead of '\' for Doxygen markup.
  Use av_printf_format to check the usage of printf style functions
  Add av_printf_format, for marking printf style format strings and their parameters
  ARM: enable thumb for Cortex-M* CPUs
  nsvdec: Propagate error values instead of returning 0 in nsv_read_header().
  build: remove SRC_PATH_BARE variable
  build: move basic rules and variables to main Makefile
  build: move special targets to end of main Makefile
  lavdev: improve feedback in case of invalid frame rate/size
  vfwcap: prefer "framerate_q" over "fps" in vfw_read_header()
  v4l2: prefer "framerate_q" over "fps" in v4l2_set_parameters()
  fbdev: prefer "framerate_q" over "fps" in device context
  bktr: prefer "framerate" over "fps" for grab_read_header()
  ALSA: implement channel layout for playback.
  alsa: support unsigned variants of already supported signed formats.
  alsa: add support for more formats.
  ARM: allow building in Thumb2 mode

Conflicts:
	common.mak
	doc/APIchanges
	libavcodec/vdpau.h
	libavdevice/alsa-audio-common.c
	libavdevice/fbdev.c
	libavdevice/libdc1394.c
	libavutil/avutil.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

This helps catching cases where the format string doesn't
match what is passed in, or injection bugs where user data
is passed in as format string.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>

These CPUs are thumb-only and thus require this option.
Signed-off-by: Mans Rullgard <mans@mansr.com>

This eliminates a warning about a set-but-unused variable.

Setting SRC_PATH to "." when building in-tree removes the need
for a quoted version of the source path since out-of-tree builds
are not possible if the pathname contains spaces.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

Show the invalid string in the error message.

While at it also prefer "Could not" over "Couldn't", plain forms are
preferred over contractions (simplify readability, especially for non
English-savvy people).
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of framerate,
using a lexically consistent name eases readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

The variable is used for containing the parsed value of s1->framerate,
using a lexically consistent name ease readability/understanding.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Currently quad, 5.0, 5.1 and 7.1 are implemented.
Implementing support for other formats/layouts and capture should be
straightforward.

5.0 and 7.1 support by Carl Eugen Hoyos.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Specifically, f32, f64, s32, s24, a-law and mu-law.
Signed-off-by: Anton Khirnov <anton@khirnov.net>

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

* qatar/master:
  configure: add --optflags option
  build: move documentation rules to doc/Makefile
  build: move test rules to tests/Makefile
  ac3enc: remove unneeded local variable in asym_quant()
  ac3enc: remove a branch in asym_quant() by doing 2 shifts
  ac3enc: avoid masking output in asym_quant() by using signed values for quantized mantissas.
  H.264: fix 4:4:4 + deblocking + 8x8dct + cavlc + MBAFF
  H.264: fix 4:4:4 + deblocking + MBAFF
  H.264: fix 4:4:4 cropping warning
  H.264: reference the correct SPS in decode_scaling_matrices
  H.264: fix bug in lossless 4:4:4 decoding

Conflicts:
	Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Avoid an incomplete listing of the libav* libraries, and the need to
update them again.

This allows overriding the default optimisation flags selected by
configure.
Signed-off-by: Mans Rullgard <mans@mansr.com>

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

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

When providing a custom AVIOContex for a AVFMT_NOFILE format
only print a warning instead of erroring out.
This allows the code to work with older MPlayer versions that
just always set pb out of laziness.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

This avoid a crash with in avfilter_merge_formats() in case one of the
filter formats list has multiple time the same entry.

Thanks to Mina Nagy Zaki for helping figuring out the issue.

quantized mantissas.

Coefficient test for i16x16 add_pixels4 assumed luma plane.

Now that we're converting all streams to Annex B format, we
can identify them as such to the hardware.
Signed-off-by: Philip Langdale <philipl@overt.org>