with -f lavfi -i testsrc=s=hd1080 as source:
rotate=90*PI/180 vs transpose=clock: 42fps -> 64fps
rotate=180*PI/180 vs vflip,hflip: 75fps -> 77fps
rotate=270*PI/180 vs transpose=cclock: 43fps -> 63fps
Clang Undefined Behaviour Sanitizer seems to make non-constant constant
expressions, making the compilation fail when they are used within
inline assembly if no optimization is requested.
Add -O1 to the cflags to hide the misbehaviour.
Bug-Id: 683
This also fixes linking failures in doc/examples which where apparently
caused by the linking order between avcodec and avresample
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Initial implementation by Andrew D'Addesio <modchipv12@gmail.com> during
GSoC 2012.
Completion by Anton Khirnov <anton@khirnov.net>, sponsored by the
Mozilla Corporation.
Further contributions by:
Christophe Gisquet <christophe.gisquet@gmail.com>
Janne Grunau <janne-libav@jannau.net>
Luca Barbato <lu_zero@gentoo.org>
It leverages the new hwaccel 1.2 features:
- get_buffer2 is never called
- the internal context is automatically initialized/deinitialized
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Add new -march values for Intel CPUs (introduced with GCC 4.9.x), add support
for the missing AMD btver* CPUs, and improve SunCC flags accordingly.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It's been deprecated since ffmpeg 2.0
Signed-off-by: James Almer <jamrial@gmail.com>
Analysis of the usage of the switches by: wm4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Allow the configure tool to call the gas-preprocessor with an absolute
path when included with either the "--as" or with a separate "--gas"
option. The patch is backward compatible and will not break any current
configuration setups.
The new behavior that comes with this option can be utilized in the
following ways:
Examples:
- Just as single option that includes both the gas-preprocessor.pl and
cc/as at the same time:
$ configure --as="/opt/app/build-tools/gas-preprocessor.pl \
/Applications/Xcode.app/.../Developer/usr/bin/gcc"
- Call gas-preprocessor with a separate option in conjunction with --as:
$ configure --gas="/opt/app/build-tools/gas-preprocessor.pl" \
--as="/Applications/Xcode.app/.../Developer/usr/bin/gcc"
- Address only the the gas-preprocessor and it will automatically fall
back to as or cc whichever that's defined:
$ configure --gas="/opt/app/build-tools/gas-preprocessor.pl"
- Or if no gas-preprocessor.pl is explicitly defined, it falls back to
the old behaivor.