arm: Fall back to runtime cpu feature detection via /proc/cpuinfo

On recent android versions, /proc/self/auxw is unreadable
(unless the process is running running under the shell uid or
in debuggable mode, which makes it hard to notice). See
http://b.android.com/43055 and
https://android-review.googlesource.com/51271 for more information
about the issue.

This makes sure e.g. neon optimizations are enabled at runtime in
android apps even when built in release mode, if configured to
use the runtime detection.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
libfdk-aacenc: Actually check for upper bounds of cutoff

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
avcodec/rectangle: Remove nonsense assert
crc: Move static data table from header to .c file

Having static data tables in header files is a potential source of trouble.
swscale: Disallow conversion to GBRP16

This reverts parts of d6d5ef5534d582, that didn't work right. (The
tests that were added failed on big endian, and the output looked
garbled on little endian as well.)

This is due to the fact that the intermediate scaling values (from
e.g. hScale8To19_c or hScale16To19_c) are stored as int32_t and
thus requires a separate output function, while yuv2gbrp_full_X_c
only interprets it as int16_t.

Signed-off-by: Martin Storsjö <martin@martin.st>
h264: Copy h264chroma dsp context to slice thread copies

This fixes slice threading which seems to have been broken since
79dad2a93.

Signed-off-by: Martin Storsjö <martin@martin.st>
x86: mpeg4qpel: Make movsxifnidn do the right thing

Fixes an instruction that does nothing by changing the
source to dword.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
openbsd: Add minor number to shared library install name

This is what the OpenBSD porter's manual describes as correct, cf.
http://www.openbsd.org/faq/ports/specialtopics.html#SharedLibs
doc: developer: Add a note about reserved system name space
build: Make library minor version visible in the Makefile

This allows employing that number in library install commands.
doc: developer: Fix wording in "naming conventions" section
lavu: avoid clashing definition of E

E is usually defined as a shorthand for AV_OPT_FLAG_ENCODING_PARAM.
Rename the single expansion E(x) now used in libavutil to E1.
Merge commit '375ef6528c9dd2db7f9881e232cb0ec3aa16970d'

* commit '375ef6528c9dd2db7f9881e232cb0ec3aa16970d':
  libfdk-aacenc: Actually check for upper bounds of cutoff
  arm: Fall back to runtime cpu feature detection via /proc/cpuinfo

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '62a43d30cc3b9b2460f2c926beb522df32493625'

* commit '62a43d30cc3b9b2460f2c926beb522df32493625':
  crc: Move static data table from header to .c file
  avcodec/rectangle: Remove nonsense assert

Conflicts:
	libavcodec/rectangle.h
	libavutil/crc_data.h

The assert is not removed as the assert ensures clear and easy
to debug failures instead of undefined behavior in case of
misalignment.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '4c51fe48ba6dde059360b7451db7f6bbf2f11db3'

* commit '4c51fe48ba6dde059360b7451db7f6bbf2f11db3':
  h264: Copy h264chroma dsp context to slice thread copies
  swscale: Disallow conversion to GBRP16

Conflicts:
	libswscale/utils.c
	tests/ref/lavfi/pixdesc
	tests/ref/lavfi/pixfmts_copy
	tests/ref/lavfi/pixfmts_null
	tests/ref/lavfi/pixfmts_scale
	tests/ref/lavfi/pixfmts_vflip

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '304b806cb524fb040f8e09a241040f1af2cb820b'

* commit '304b806cb524fb040f8e09a241040f1af2cb820b':
  build: Make library minor version visible in the Makefile
  x86: mpeg4qpel: Make movsxifnidn do the right thing

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '56dea32f09e71460add14a1b6d0fbe6eb16f02a4'

* commit '56dea32f09e71460add14a1b6d0fbe6eb16f02a4':
  doc: developer: Fix wording in "naming conventions" section
  openbsd: Add minor number to shared library install name

Conflicts:
	doc/developer.texi

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

* qatar/master:
  lavu: avoid clashing definition of E
  doc: developer: Add a note about reserved system name space

Conflicts:
	libavutil/internal.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
lavc/tta: Add support for encrypted streams

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>