libav.git - [no description]

	Commit message (Collapse)	Author	Age
*	Merge commit 'd1a6cb195f610978ba5d2351e60f938f7f261d59'	Michael Niedermayer	2015-07-09
\|\ \| \| \| \| \| \| \| \| \| \| \| \|	* commit 'd1a6cb195f610978ba5d2351e60f938f7f261d59': x86: Serialize rdtsc in read_time() Merged-by: Michael Niedermayer <michaelni@gmx.at>
\| *	x86: Serialize rdtsc in read_time()	Henrik Gramner	2015-07-09
\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	Improves the accuracy of measurements, especially in short sections. To quote the Intel 64 and IA-32 Architectures Software Developer's Manual: "The RDTSC instruction is not a serializing instruction. It does not necessarily wait until all previous instructions have been executed before reading the counter. Similarly, subsequent instructions may begin execution before the read operation is performed. If software requires RDTSC to be executed only after all previous instructions have completed locally, it can either use RDTSCP (if the processor supports that instruction) or execute the sequence LFENCE;RDTSC." SSE2 is a requirement for lfence so only use it on SSE2-capable systems. Prefer lfence;rdtsc over rdtscp since rdtscp is supported on fewer systems. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* \|	avutil/timer: Fix units for x86 after c708b5403346255ea5adc776645616cc7c61f078	Michael Niedermayer	2014-03-09
\| \| \| \| \| \| \| \|	Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* \|	Merge remote-tracking branch 'qatar/master'	Michael Niedermayer	2013-09-22
\|\\| \| \| \| \| \| \| \| \| \| \| \| \|	* qatar/master: avutil: Fix compilation with inline asm disabled on mingw Merged-by: Michael Niedermayer <michaelni@gmx.at>
\| *	avutil: Fix compilation with inline asm disabled on mingw	Alex Smith	2013-09-22
\| \| \| \| \| \| \| \| \| \| \| \|	Because of -Werror=implicit-function-declaration the build will fail. Signed-off-by: Martin Storsjö <martin@martin.st>
* \|	Merge remote-tracking branch 'qatar/master'	Michael Niedermayer	2012-07-08
\|\\| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \| \|	* qatar/master: cmutils: include shellapi.h on Win32 (for CommandLineToArgvW). x86/timer: implement an intrinsic-based version for rdtsc (AV_READ_TIME). id3v2: add a mimetype for bmp pictures. flacdec: be less strict when parsing attached pictures. flacdec: don't create an attached picture stream until we have all information. Conflicts: configure Merged-by: Michael Niedermayer <michaelni@gmx.at>
\| *	x86/timer: implement an intrinsic-based version for rdtsc (AV_READ_TIME).	Ronald S. Bultje	2012-07-07
\| \|
\| *	Replace FFmpeg with Libav in licence headers	Mans Rullgard	2011-03-19
\|/ \| \| \|	Signed-off-by: Mans Rullgard <mans@mansr.com>
*	Split libavutil/timer.h per architecture	Måns Rullgård	2009-04-01
	Originally committed as revision 18304 to svn://svn.ffmpeg.org/ffmpeg/trunk