This allows comparing the 2 decoders with threads
Based on:commit 2e2d24667a
By: Nicolas Bertrand <nicoinattendu@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '46c1917350':
nut: use a define for the nut version
bgmc: Do not mark ff_bgmc_decode_init() as av_cold
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Fixes inconsistency that leads to out of array accesses with threads
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes a case where multichannel bitrate isn't accurately
targetted by psy model alone, never achieving the target bitrate.
Now fixed.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
When decoding succeeded the array is copied into the permanent one.
This prevents inconsistencies
Fixes assertion failure
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The reimplementation by Libav does not prevent out of array
writes, even though it looks like it does at a quick glance.
No FFmpeg releases are affected by this
See: d1c95d2ce33623589edc740ebe468c
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
If no decoding error was detected, but still no audio was decoded, the
frame needs to be free'ed, or it will leak.
Fixes part of ticket #2095
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The specification wants round(abs(x))) * sign(x) which is
equivakent to round(x)
Fixes out of array access
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Fixes out of array accesses
No release is affected by this bug
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This patch can be controversial, by assuming floats are IEEE-754 and
particular behaviour of the FPU will get in the way.
Timing on Arrandale and Win32 (thus, x87 FPU is used in the reference).
sbr_qmf_pre_shuffle_c: 115 to 76
sbr_neg_odd_64_c: 84 to 55
sbr_qmf_post_shuffle_c: 112 to 83
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Sandybridge: 47 cycles
Having a loop counter is a 7 cycle gain.
Unrolling is another 7 cycle gain.
Working in reverse scan is another 6 cycles.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
* commit '507b1e454c':
avcodec: Add field order information to AVCodecParserContext.
Conflicts:
doc/APIchanges
libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '803d21f38b':
lavc: schedule AVCodecContext.lowres for removal on next bump.
Conflicts:
libavcodec/avcodec.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'bf7c3c6b15':
x86: dsputil: Move cavs and vc1-specific functions where they belong
Conflicts:
libavcodec/x86/dsputil_mmx.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9328062321':
x86: dsputil: Move avg_pixels16_mmx() out of rnd_template.c
x86: dsputil: Move avg_pixels8_mmx() out of rnd_template.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
