Libspeex VAD support

Option for Voice Activity Detection is added to speex encoder.

Speex detects non-speech periods and encodes them with just enough bits
to reproduce the background noise, aka ``comfort noise generation''.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
tiffenc: Simplify pixel format setup using AVPixFmtDescriptor.
tiffenc: Check av_malloc() results.
lavfi/transpose: add support to named options and shortands

Allow extensibility.
lavfi/transpose: add passthrough option
doc/swresample.txt: fix typos
nut: add do {} while (0) to GET_V

Make it consistent with the other function-like macros.
ARM: fix Thumb PIC on Apple

LDR with register offset and PC as base register is not available in
the Thumb instruction set so the addition must be done separately.

Signed-off-by: Mans Rullgard <mans@mansr.com>
mov: add option to ignore edit lists.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'fd41cb43702498948ff14ba8c284fd5c15fc729d'

* commit 'fd41cb43702498948ff14ba8c284fd5c15fc729d':
  avconv: improve sample format negotiation for decoder request
  Opus encoder using libopus
  mpegts: Drop pointless casting of hex_dump_debug arguments
  avformat: const correctness for av_hex_dump / av_hex_dump_log
  wmadec: Adjust debug printf argument length modifier

Conflicts:
	Changelog
	ffmpeg.c
	libavcodec/libopusdec.c
	libavcodec/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit 'bfcd4b6a1691d20aebc6d2308424c2a88334a9f0'

* commit 'bfcd4b6a1691d20aebc6d2308424c2a88334a9f0':
  adpcmdec: set AVCodec.sample_fmts
  twinvq: use planar sample format
  ralf: use planar sample format
  mpc7/8: use planar sample format
  iac/imc: use planar sample format
  dcadec: use float planar sample format
  cook: use planar sample format
  atrac3: use float planar sample format
  apedec: output in planar sample format
  8svx: use planar sample format

Conflicts:
	libavcodec/8svx.c
	libavcodec/dcadec.c
	libavcodec/mpc7.c
	libavcodec/mpc8.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
libopusenc: use more specific and correct name for the channel order

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '55f9037f38bc3beacb2f5a17408c1d24c077d7fd'

* commit '55f9037f38bc3beacb2f5a17408c1d24c077d7fd':
  avformat: split muxing functions from util.c

Conflicts:
	libavformat/internal.h
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '86bbdf865e04bc5ddc2021b0620e6de634375253'

* commit '86bbdf865e04bc5ddc2021b0620e6de634375253':
  avformat: refactor avformat_write_header

Conflicts:
	libavformat/mux.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '1e46c63eb72be752e044ba32257d77f35cbd9dac'

* commit '1e46c63eb72be752e044ba32257d77f35cbd9dac':
  avformat: refactor avformat_write_header

Conflicts:
	libavformat/mux.c

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

* qatar/master:
  ARM: fix Thumb PIC on Apple
  nut: add do {} while (0) to GET_V
  tiffenc: Check av_malloc() results.
  tiffenc: Simplify pixel format setup using AVPixFmtDescriptor.
  Use atexit() instead of defining a custom exit_program() interface.
  msvc: Fix detection of VFW & Avisynth required libs

Conflicts:
	ffmpeg.c
	ffmpeg_opt.c
	ffplay.c
	ffprobe.c
	ffserver.c
	libavcodec/tiffenc.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
ARM: set Tag_ABI_align_preserved in all asm files

All our ARM asm preserves alignment so setting this attribute
in a common location is simpler.  This removes numerous warnings
when linking with armcc.

Signed-off-by: Mans Rullgard <mans@mansr.com>
ARM: bswap: drop armcc version of av_bswap16()

This function causes several versions of armcc to miscompile code,
and the performance impact is small.

Signed-off-by: Mans Rullgard <mans@mansr.com>
fix exit_program() prototypes

This fixes 2 warnings

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
segment: Pass the interrupt callback on to the chained AVFormatContext, too

This might not be needed at the moment, but it's good practice to
pass it to all chained AVFormatContexts, if it would happen to be
used there at a later point.

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