* commit 'db347280eb3746d7b70888db97f1efe5f06f5624':
vorbis: fallback to normal division instead of crashing
Conflicts:
libavcodec/vorbisdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ddf1b4a2f8a680126eb611428e4f47e6e5b8c6c0':
vorbis: simplify the inner loop in setup_classifs
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c360fb174b01170ab3fd3048d4d0acb44aa4e834':
win32: Do not use GetProcAddress when compiled for Vista+
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '0b6899f154347cdd0aa66c5ec16ed9c65871766f':
configure: msvc: Set the target windows version to XP if no target is set
Merged-by: Michael Niedermayer <michaelni@gmx.at>
4-operation form is preferred over 3-operation because it breaks a long
dependency chain, thus allowing a superscalar processor to execute more
operations in parallel.
The idea was taken from: http://www.zorinaq.com/papers/md5-amd64.html
AMD Athlon(tm) II X3 450 Processor, x86_64
$ for i in $(seq 1 4); do ./avutil_md5_test2; done
size: 1048576 runs: 1024 time: 5.821 +- 0.019
size: 1048576 runs: 1024 time: 5.822 +- 0.019
size: 1048576 runs: 1024 time: 5.841 +- 0.018
size: 1048576 runs: 1024 time: 5.821 +- 0.018
$ for i in $(seq 1 4); do ./avutil_md5_test2; done
size: 1048576 runs: 1024 time: 5.646 +- 0.019
size: 1048576 runs: 1024 time: 5.646 +- 0.018
size: 1048576 runs: 1024 time: 5.642 +- 0.019
size: 1048576 runs: 1024 time: 5.641 +- 0.019
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Allows decoding with only three frame buffers with frame reference
counting. Fixes VAAPI based decoding in vlc which uses only three
frame buffers for the mpegvideo-based codecs.
The use of ff_inverse speeds up slightly arches + compilers that
do not provide a division faster than the whole machinery, such
as ppc32 + gcc4.7, but has operational limits.
Drop the always-enable assert and provide a fallback.
MSVC 2010 (or more precisely, Windows SDK 7.0 which comes with MSVC
2010) sets _WIN32_WINNT to the constant for Windows 7 if nothing is
set. This could lead to the libav configure script detecting and
using functions only present in Windows 7 or newer, which in most
cases isn't desired. If the caller explicitly wants this, the caller
can add the _WIN32_WINNT define via --extra-cflags, setting the desired
version.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '8e673efc6f5b7a095557664660305148f2788d30':
prores: update FATE test to account for alpha plane present in the test sample
configure: Add basic valgrind-massif support
Conflicts:
tests/fate/prores.mak
tests/ref/fate/prores-alpha
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Both strtoll and atoll have different names on MSVC, and strtoll has a
compatibility layer in place for this case.
Fixes compilation on MSVC.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
With the parameter --toolchain valgrind-massif, the configure
script sets reasonable defaults that can be overridden as explained
in the documentation.
