There were some mistakes in the code for M/S stereo, this commit fixes them.
The start variable was not being reset for every window and every access to
the coefficients was incorrect as well. This fixes that by properly
addressing the coefficients using both windows and setting the start on every window to zero.
Reviewed-by: Claudio Freire <klaussfreire@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This commit modifies 02dbed6e to use band->active_lines to better gauge how much information is contained within a single band and thus allow the perceptual noise subsitution to more accurately determine which bands to code as noise. The spread[w+g] used before this patch behaved more like a low-pass filter for PNS band_types, which could mistakingly mark some low frequency bands as noise.
Reviewed-by: Claudio Freire <klaussfreire@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

* commit '80f955c9':
  vda: Check the correct pointer for buffer allocation
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '76d4c627':
  webp: Make sure enough bytes are available

Conflicts:
	libavcodec/webp.c

See: 0762152fMerged-by: Michael Niedermayer <michaelni@gmx.at>

The loop always needs at least 8 bytes for chunk_type and chunk_size.
If fewer are left, bytestream2_get_le32 just returns 0 without
reading any bytes, leading to an infinite loop.
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '016cac75':
  asfdec: prevent the infinite loop in detect unknown_subobject
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '9752d2e6':
  asfdec: prevent possible memory leak in the asf_read_metadata_obj
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '910247f1':
  lavc: Deprecate avctx.{inter,intra}_quant_bias

Conflicts:
	libavcodec/mpegvideo_enc.c
	libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1316df7a':
  lavu: add an API function to return the Libav version string

Conflicts:
	.gitignore
	Makefile
	cmdutils.c
	doc/APIchanges
	libavutil/avutil.h
	libavutil/utils.c

See: f9112664Merged-by: Michael Niedermayer <michaelni@gmx.at>

CC: libav-stable@libav.org
Found-By: kropping

Every chunk needs at least 8 bytes for chunk_type and chunk_size.
Prevent a possible infinite loop.

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

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

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

They are used by dnxhd and mpegvideo_enc exclusively, move them to codec
private options instead.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

This returns something like "v12_dev0-1332-g333a27c". This is much more
useful than the individual library versions, of which there are too
many, and which are very hard to map back to releases or git commits.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

More than 32 bits can't be stored in an integer and get_bits should not
be used with more than 25 bits.
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com>

Packed formats are not supported.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Signed-off-by: Paul B Mahol <onemda@gmail.com>

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

Fixes: asan_heap-oob_1dd60fd_267_cov_2954683513_5baad44ca4702949724234e35c5bb341.jpg

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes:asan_heap-oob_4d5bb0_2295_cov_3374722539_hotel_california_ra5.1_640x480_30s.rmvb

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/qsv: Extending QSV/MFX session initialization for the linux platform where a display handle is required.

Now ff_qsv_init_internal_session() is able
to find appropriate display handle under linux using VAAPI.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Place @item entry at the right point, remove duplicated description.

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

This is based on asfdec_o.c, but uses a proper type instead of defines
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

* commit 'a31c4b2c':
  fate-g2m3: disable the audio stream

Conflicts:
	tests/ref/fate/g2m3
Merged-by: Michael Niedermayer <michaelni@gmx.at>

This avoids empty streams from being selected if a equivalent non empty one is available
The new system is also clearer and more systematic
This may need finetuning, which should be easy to do ...

Fixes Ticket2687
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes Thailand-Wave.wmv without explicitly specifying a stream
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes #4103.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

The audio decoder is not in fate-g2m3 dependencies and the wma2 decoder
is probably not bit-exact since it it float based.

This prevents a linker warning and skips a useless compilation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes: asan_heap-oob_17212bc_2243_cov_594210248_h264_TTA.mkv

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This also simplifies the code
Fixes: signal_sigabrt_7ffff6ac8cc9_2943_cov_3588637614_mss2_speech.wmv

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* commit '4e081931':
  elsdec: Replace EOVERFLOW with INVALIDDATA

See: dec72888Merged-by: Michael Niedermayer <michaelni@gmx.at>