Fixes: runtime error: signed integer overflow: -1575818955 + -915383657 cannot be represented in type 'int'
Fixes: 2224/clusterfuzz-testcase-minimized-6208559949807616

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by: Michael Niedermayer <michael@niedermayer.cc>

The min_shift parameter is needed by the MLP encoder
Signed-off-by: Jai Luthra <me@jailuthra.in>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

See e.g https://stackoverflow.com/questions/1666353/are-typedef-and-define-the-same-in-c
for rationale.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>

This commit adds a function to get the reflection coefficients on
floating point samples. It's functionally identical to
ff_lpc_calc_ref_coefs() except it works on float samples and will
return the global prediction gain. The Welch window implementation
which is more optimized works only on int32_t samples so a slower
generic expression was used.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Not needed anymore, it was only used by the AAC TNS
encoder and was replaced with a more suitable function
in the following commit.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

This commit simply duplicates the functionality of ff_lpc_calc_coefs()
for the case of a Levinson-Durbin LPC with the only difference being
that floating point samples are accepted and the resulting coefficients
are raw and unquantized.
The motivation behind doing this is the fact that the AAC encoder
requires LPC in TNS and LTP and converting non-normalized floating
point coefficients to int32_t using SWR and again back for the LPC
coefficients was very impractical.
The current LPC interfaces were designed for int32_t in mind possibly
because FLAC and ALAC use this type for most internal operations.
The mathematics in case of floats remains of course identical.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Add fixed poind code.
Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

CC: libav-stable@libav.org
Bug-Id: CID 29585 / CID 700759

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

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

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

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

Fixes crash on x86 due to alignment requirements for w_data in
lpc_apply_welch_window_sse2().

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 77a78e9b)

Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 56f8952b)

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Add AVLPCType enum.
Deprecate AVCodecContext.use_lpc.

Originally committed as revision 24199 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22260 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15202 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15193 to svn://svn.ffmpeg.org/ffmpeg/trunk

Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14817 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14797 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14795 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14794 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14792 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14790 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 11087 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10829 to svn://svn.ffmpeg.org/ffmpeg/trunk