lpc: remove "decay" argument

We never used the rolling-average mode, and this makes av_update_lls 15% faster.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
lpc: use function pointers, in preparation for asm

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
x86: lpc: simd av_update_lls

4x-6x faster on sandybridge

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
x86: lpc: simd av_evaluate_lls

1.5x-1.8x faster on sandybridge

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
lpc: use levinson for the first pass of multipass cholesky

Levinson is faster, and cholesky is only needed if we want to apply different
weights to different samples, which doesn't happen on the first pass.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
pictor: use the correct logging context

Broken in 6d97484d72e33f7dde9493a9ead1a72e2f029605
wmapro: check the min_samples_per_subframe

Must be at least WMAPRO_BLOCK_MIN_SIZE.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
wmapro: error out on impossible scale factor offsets

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
avconv: Don't include colorspace.h

The header is private, and avconv.c doesn't use it
for anything.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
ffmpeg: Don't include colorspace.h

The header is private, and ffmpeg.c doesn't use it
for anything.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
mjpeg_decode_dc: check code before using it in get_xbits()

Fixes undefined behavior

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
4xm: check for invalid zero ac coeffs

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
4xm: Dont ignore dc run errors

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
get_xbits: assert validity of the number of bits

similar is already done in the other get_bits() functions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
mjpeg: Move code out of else branch

Simplify the control flow and spare some vertical space.
mjpeg: Check the unescaped size for overflows

And contextually check init_get_bits success and fix the reporting
message.

Reported-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
Merge commit 'cc6714bb16b1f0716ba43701d47273dbe9657b8b'

* commit 'cc6714bb16b1f0716ba43701d47273dbe9657b8b':
  lpc: remove "decay" argument

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '41578f70cf8aec8e7565fba1ca7e07f3dc46c3d2'

* commit '41578f70cf8aec8e7565fba1ca7e07f3dc46c3d2':
  lpc: use function pointers, in preparation for asm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '502ab21af0ca68f76d6112722c46d2f35c004053'

* commit '502ab21af0ca68f76d6112722c46d2f35c004053':
  x86: lpc: simd av_update_lls

The versions are bumped due to changes in lls.h which is used across
libraries affecting intra library ABI
(This version bump also covers changes to lls.h in the immedeatly previous
 commits)

Merged-by: Michael Niedermayer <michaelni@gmx.at>
lls.asm: put avx code under if HAVE_AVX_EXTERNAL

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