configure: support raising major version in soname

this allows seperate installation of shared libs that should not conflict with
whatever is already installed.

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

ffmpeg: use timestamp from before and after the decoder to detect backward moving dts for discontinuity detection

This should make discontinuity detection more robust and detect
more cases. Timestamps after the decoder can be delayed due to threads,
timestamps before can be missing

no testcase available/known

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

nutenc/write_index: warn if 2 consecutive keyframes have the same PTS and discard the 2nd

This fixes an assertion failure and regression and restores previous behaviour
Fixes Ticket3197

An alternative would be to fail hard in this case and refuse to mux such data.

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

vc1: simplify *_use_ic initialization

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

VC1: Fix intensity compensation performance regression

Fix https://trac.ffmpeg.org/ticket/3204

The problem was that intensity compensation was always used once it was
encountered. This is because v->next_use_ic was never set back to zero.
To fix this, when resetting v->next_luty/uv, also reset v->next_use_ic.

This improved (restored) performance by 85% when decoding
http://bit.ly/bbbwmv

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  hevc: move DSP declarations from hevc.h into hevcdsp.h

Conflicts:
libavcodec/hevc.h
libavcodec/hevcdsp.c
libavcodec/hevcdsp.h

See: c8dd048ab8cff815c9f4b16a62db0b74df011f0a
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'be7c323176e2e5fcf30e3d2ff20975b2f936811b'

* commit 'be7c323176e2e5fcf30e3d2ff20975b2f936811b':
  Add a libwebp encoder

Conflicts:
Changelog
doc/encoders.texi
doc/general.texi
libavcodec/version.h
libavformat/img2enc.c

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

hevc: move DSP declarations from hevc.h into hevcdsp.h

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

avformat/4xm: shrink packet if it was only partially initialized

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f6c76ab7950_4920_dracula.4xm
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/isom: check avio_read() result

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f7aa4151661_4885_dmbts3.ts
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/rmdec: zero string destination before use

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f9677850d99_4635_crashed.rm
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Add a libwebp encoder

vcodec/rv34: use av_mallocz() to allocate tables

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f75e2a55b88_4146_brokenaudio.rmvb
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/electronicarts: detect endianness by comparing sizes instead of using an arbitrary threshold

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

avformat/gxfenc: dont use a int intermediate to store in a unsigned int table

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

avformat/electronicarts: use 64bit variable for avio_tell() result

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

avcodec/vqavideo: clear uninitialized parts of the decode buffer

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7f841fe2ab3b_4608_cow2_1.vqa
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/vqavideo: check destination size on all exit pathes

Fixes part of msan_uninit-mem_7f841fe2ab3b_4608_cow2_1.vqa
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

examples/muxing: fix memleaks in resampler

  - do not allocate resample dst buffer when resample is off
  - free sample buffers in addition to freeing data pointer arrays

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

examples/muxing: use S16 sample_fmt for resample src regardless of codec sample_fmt

We generate S16 samples and we should allocate the right buffer

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

examples/muxing: fix av_frame_free() not called when got_packet is false

Hi list! Since my last patch (fix 2 memleaks in doc/examples/muxing.c)
I found more problems to fix.

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

wtvdec: when testing for truncated files, actually check the .wtv file size

Previously the demuxer was testing against avio_tell, and this would generate
many false warnings.

Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  arm: Don't clobber callee saved registers in scalarproduct

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

Merge commit '5c3fa74b94fdedfd63b606f36920d7fbbc069b72'

* commit '5c3fa74b94fdedfd63b606f36920d7fbbc069b72':
  hevc: support luma bit depth != chroma bit depth for PCM coding units

Conflicts:
libavcodec/hevc.c

See: 0afa254d4efd3c06fd0194789aefc193c8506947
See: a7e300649a7a2105a4f7edfaf936f0a9e05a2d43
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '78d0b7f36e39bb4745613e312024ddd508e2f0fb'

* commit '78d0b7f36e39bb4745613e312024ddd508e2f0fb':
  hevc: warn when an unknown profile is used

See: a21839149cddf2fa6d4cfc37d066cdb68a2ac8aa
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '259cddb137988a25607f091c2414158ff81ca7d6'

* commit '259cddb137988a25607f091c2414158ff81ca7d6':
  hevc_ps: fix indentation

See: 36658c978f5d7df2ce556075946f3a80f7eca753
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '2d18aaa14bc2233b0647d2c5abb72e0bc828c2a8'

* commit '2d18aaa14bc2233b0647d2c5abb72e0bc828c2a8':
  hevc: refactor Profile Tier Level
  hevc: don't check for errors in PTL code

Conflicts:
libavcodec/hevc_ps.c

See: 36658c978f5d7df2ce556075946f3a80f7eca753
See: dddc9b7a8ec3a03e48c69991ca7f20f10dd6f022
See: ecb21d24373ccf8f1d090cff48f4e0c384b7f998
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '321cb8b048c7a8c0d2950f9278f36d912a886fa0'

* commit '321cb8b048c7a8c0d2950f9278f36d912a886fa0':
  hevc: store profile and level in AVCodecContext

See: fb7d70c1cd95529cbbbeeab5e9fa3b200ef2545c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '2a41826bea3833895dc06939831b7f35ca1f597e'

* commit '2a41826bea3833895dc06939831b7f35ca1f597e':
  lavc: add HEVC profiles names

Conflicts:
libavcodec/hevc.c
libavcodec/version.h

See: fb7d70c1cd95529cbbbeeab5e9fa3b200ef2545c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'f412b2c9f3a7add0ab8021262ec4bad249347e30'

* commit 'f412b2c9f3a7add0ab8021262ec4bad249347e30':
  flv: Use the correct type to hold the file offset

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

Merge commit '15739a9bd19a7d47ad8afb25348c684a3bdd6ef2'

* commit '15739a9bd19a7d47ad8afb25348c684a3bdd6ef2':
  jvdec: Do not feed the decoder with known wrong data

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

Merge commit 'e518cb863edc931888ccca6cad86f73ca7430cef'

* commit 'e518cb863edc931888ccca6cad86f73ca7430cef':
  jvdec: Fix memory leak of jv->frames

See: 596814f9781772050c65bdd8add27445bc8374a4
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '027712e851da4d124a842c9e2802f95d50582553'

* commit '027712e851da4d124a842c9e2802f95d50582553':
  jvdec: Return EOF on end of file

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

Merge commit 'dfc50ac85e9d68a771b556297b7c411650206f3b'

* commit 'dfc50ac85e9d68a771b556297b7c411650206f3b':
  x86: mpegvideo: move denoise_dct asm to mpegvideoenc

Conflicts:
libavcodec/x86/mpegvideo.c
libavcodec/x86/mpegvideoenc.c

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

Merge commit 'b254490bdabb21bd517c05b1a68717f9952ac8c4'

* commit 'b254490bdabb21bd517c05b1a68717f9952ac8c4':
  vc1: arm: Add NEON no_rnd chroma MC

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

Merge commit '832e19063209a5f355af733d1a45f5051f49ce33'

* commit '832e19063209a5f355af733d1a45f5051f49ce33':
  vc1: arm: Add NEON assembly

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

avformat/pva: Make sure the header is large enough before reading the timestamp from it

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f34b5dc6d58_2674_PVA_test-partial.pva
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/pva: Make sure the first byte of pes_header_data has been initialized

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f53c1d0e95c_2674_PVA_test-partial.pva
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

arm: Don't clobber callee saved registers in scalarproduct

q4-q7/d8-d15 are supposed to not be clobbered by the callee.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>

hevc: support luma bit depth != chroma bit depth for PCM coding units

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

hevc: warn when an unknown profile is used

Bitstreams conforming to the spec should not use profiles not defined
in it.

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

hevc_ps: fix indentation

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

hevc: refactor Profile Tier Level

Also store a few PTL flags which were skipped before

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

hevc: don't check for errors in PTL code

According to the spec, the value of XXX_reserved_zero_44bits should be
ignored, so don't report an error when it's not zero.

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

hevc: store profile and level in AVCodecContext

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

lavc: add HEVC profiles names

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

lavfi/hue: show first decimal value of saturation

lavfi/hue: use av_clip_uint8() instead of av_clip_uint8_c()

The generic version should be faster if optimized.

lavfi/hue: force table initialization for the first frame

avformat/smacker: check for format mismatch more completely

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f6e83322950_9769_wetlogo.smk
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/nistspheredec: initialize header_size to -1

Fixes use of uninitialized memory
This also avoids the need to check the scanf() return as the subsequent check catches it
Fixes: msan_uninit-mem_7f712e4dc173_7414_nist_ulaw.nist
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

flv: Use the correct type to hold the file offset

jvdec: Do not feed the decoder with known wrong data

Still assume the size value is right in non-explode mode.

jvdec: Fix memory leak of jv->frames

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

jvdec: Return EOF on end of file

x86: mpegvideo: move denoise_dct asm to mpegvideoenc

This function is encoding-only.

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

avcodec/mpegvideo_enc: fix frame skipping with intra only codecs

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

avcodec/mpegvideo_enc: fix integer overflow with -skip_exp >= 2

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

vc1: arm: Add NEON no_rnd chroma MC

Apply David Conrad's old patch to the modern codebase.

http://ffmpeg.org/pipermail/ffmpeg-devel/2009-April/059877.html

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

vc1: arm: Add NEON assembly

For:

ff_vc1_inv_trans_{8,4}x{8,4}_{dc_,}neon
ff_put_pixels8x8_neon
ff_put_vc1_mspel_mc{0,1,2,3}{0,1,2,3}_neon (except for 00)

Based on ARM assembly code in libavcodec/arm by Rob Clark and Mans
Rullgard.

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  atomics: cosmetics: Restructure ifdefs for greater clarity

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

Merge commit '8558595a59913a4667f57d5a4658b1340f1a4354'

* commit '8558595a59913a4667f57d5a4658b1340f1a4354':
  configure: Express atomics/thread deps through the dependency system

Conflicts:
configure

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

atomics: cosmetics: Restructure ifdefs for greater clarity

Also fix the #endif comment in a few places and #include config.h to
avoid assuming it is #included implicitly.

avformat/sierravmd: Check avio_read return value

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f82af392dae_1848_HR060606.VMD
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

remuxing .opus files to .webm codec->delay must be copied too

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

avformat/nistspheredec: check sscanf() success before using the result

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f935c3c6c1a_7413_nist_pcms8.nist
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/iff: warn about truncated input to decode_byterun() and clear remaining output

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7fe205e395ed_8988_test.iff
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

configure: Express atomics/thread deps through the dependency system

rpl: Dont fill the index with entries that failed to be parsed

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7fd10a199a3c_6204_landing.rpl
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/mpegts: expose raw packet size

We cannot easily determine if an mpeg TS's packet size is DVHS, FEC
or so on, for that we need to expose the internal raw_packet_size
field.

Signed-off-by: Leandro Dorileo <leandro.maciel.dorileo@intel.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/dxa: check avio_read() return

Fixes use of uninitialized memory
Fixes msan_uninit-mem_7fd4d4323ddd_2453_MUSOSP1.dxa
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/dxa: check for overread in decode_13()

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7f5ea8284fb7_8317_scummvm.dxa
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/dxa: add padding to decomp_buf

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7f5ea8284fb7_8317_scummvm.dxa
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/flashsv: check decode_hybrid() for overread

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f906558274e_268_14_244486_2009_04_28.flv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavfi/deshake_opencl: optimze transform filter

Reviewed-by: Wei Gao <highgod0401@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/swfdec: clear 4 bytes at the end of a packet if they are not initialized

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7f055dd0ab1b_9558_videopop_guitar_300k.swf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/swfdec: check avio_read() return code

Fixes use of uninitialized memory
Fixes part of msan_uninit-mem_7f055dd0ab1b_9558_videopop_guitar_300k.swf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  fate: Explicitly specify the pixel format for the pngparser test

Conflicts:
tests/fate/image.mak

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

avformat/swfdec: check avio_read() return code

Fixes use of uninitialized memory
Fixes msan_uninit-mem_7f90d9cce964_9558_videopop_guitar_300k.swf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/interplayvideo: Check that enough data is available for opcode_0x7/8/D

Fixes hypothetical use of uninitialized memory, no sample available

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

avcodec/interplayvideo: Check that enough data is available for opcode_0x9

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7fd5185b45df_5895_interplay-logo-2MB.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/interplayvideo: Check that enough data is available for opcode_0xA

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f90e5be6b30_3965_baldursgate_camp.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/ipmovie: Check palette size in OPCODE_SET_PALETTE

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

avformat/ipmovie: Check that OPCODE_SET_PALETTE size is large enough

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7fec1f40656c_4819_descent3_level5_16bit_partial.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/ipmovie: remove superflous ()

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

avformat/ipmovie: Check that the OPCODE_INIT_AUDIO_BUFFERS size is large enough

Fixes use of uninitialized memory
Fixes: msan_uninit-mem_7f75b03c1f19_4820_descent3_level5_16bit_partial.mve
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/pngdec: fix signed overflow

fixes fate ftrapv failure

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

fate: Explicitly specify the pixel format for the pngparser test

The RGB32 pixel format is RGBA/BGRA depending on target
endianness - make sure to convert it to one specific format for
the framecrc tests.

This fixes the pngparser fate test on big endian.

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  Prepare release notes for Libav 10 "Eks"

Conflicts:
doc/RELEASE_NOTES

Not merged because all that stuff has been in past releases

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

avformat/isom: zero MPEG4AudioConfig to avoid leaving fields uninitialized

Fixes: use of uninitialized memory
Fixes: msan_uninit-mem_7f392c443e0d_1433_Crowd_Applause_01.caf
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/nuv: zero buffer padding

Fixes use of uninitialized memory
Fixes msan_uninit-mem_7f4a141261de_7405_nirvana.nuv
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/dirac_dwt: initialize support value for fidelity wavelet

Avoids use of uninitialized memory
Fixes: msan_uninit-mem_7f15e1988a6e_2748_RL_420p_ffdirac.drc
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Prepare release notes for Libav 10 "Eks"

Additional editing by Diego Biurrun

lavf/concatdec: fix crash in case a file in script cannot be opened

lavf/segment: increase logging level for message with segment start information

Help debugging.

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  png_parser: Fix parsing on big endian

See: 3d42addf336739a69aee47891413a46e4f64995b
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'd8fd183683b7495566b7e510a6536ae2efe8dfed'

* commit 'd8fd183683b7495566b7e510a6536ae2efe8dfed':
  vc1: Fix mb_height for field pictures

See: 017e234c204f8ffb5f85a073231247881be1ac6f
Merged-by: Michael Niedermayer <michaelni@gmx.at>

png_parser: Fix parsing on big endian

Since pc.state is populated by shifting in from the end of the
32 bit word, the content within pc.state is already in native endian
and should not be read with the AV_R{L,B} functions.

This was already done correctly for state64 above.

This fixes the fate-corepng test on big endian.

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

avcodec/aacdec: default to non-wide 7.1 in non-strict mode

AAC specification has 7.1(wide) as a default layout for 8-channel
streams (channel config 7). However, at least Nero AAC encoder encodes
non-wide 7.1 streams using the default channel config 7, mapping the
side channels of the original audio stream to the second
AAC_CHANNEL_FRONT pair in the AAC stream. Similarly, e.g. FAAD decodes
the second AAC_CHANNEL_FRONT pair as side channels, therefore decoding
the incorrect streams as if they were correct (and as the encoder
intended).

FFmpeg currently decodes such files by-the-spec, i.e. after decoding the
original front pair will be in AV_CH_FRONT_x_OF_CENTER and the original
side pair will be in AV_CH_FRONT_x.

As actual intended 7.1(wide) streams are very rare while misencoded 7.1
files actually exist in the wild, default to assuming a 7.1 layout was
intended unless in strict mode.

Fixes playback of e.g. 8_Channel_ID.m4a in samples.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Revert "Merge commit '3bc2e89c76e88ae6f1fd5287e0b11abcfc3c601c'" (Bump libavutil major version to account for the LLS API/ABI changes.)

This reverts commit 792845e436ddc5f3ce11ba02535a3372919061f2, reversing
changes made to 1d6666a6b828cca6c6b355a9b62f25607b1ced08.

Bumping libavutil requires all libraries that use libavutil to have their
major version bumped (yes breakage has been confirmed this is not a hypotheses)

One case of breakage is due to new types being added to AVOptions and
applications that linked to old libavutil and libswresample
then trying to use old libavutil (its soname changed so the old isnt updated)
and new swresample (its soame didnt change so it is updated)
the new swresample contains AVOption types that the old libavutil doesnt
know of thus the application attempting to access these avoptions
fails

AVOptions are used by all libs so the issue can potentially happen with
any other lib, libswresample was just the first that showed the problem
ive not checked if the other libs are affected currently by the same issue
or not

Also in addition to AVOptions, AVFrames are also defined in
libavutil, bumping it without all libs that use AVFrames could lead to
serious inconsistencies when 2 libs/app end up using 2 different libavutils

The alternative of bumping all is still possible after this revert, if it
turns out to be the preferred solution