generic-library/ffmpeg
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11 Commits

Author SHA1 Message Date
Michael Niedermayer
ed9be7dd47 avcodec/x86/pngdsp: fix off by 1 error 
This fixes artifacts in the last pixel of rows with some widths and pixel formats

Found-by: Dominique Leroux <Dominique.Leroux@autodesk.com>
Tested-by: Dominique Leroux <Dominique.Leroux@autodesk.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-12-08 18:24:40 +01:00
Christophe Gisquet
9fa056ba75 pngdsp x86: use unaligned access 
For test images manually generated to contain only up prediction,
timing results:
         8380x3032    255x185
before:   138635       1992
after:    139232       1996

Actually jumping to the proper version depending on the alignment:
8380x3032: 138767

A 0.5% speed improvement for gigantic images is not worth the code
duplication.

Fixes ticket #4148

Signed-off-by: Christophe Gisquet <christophe.gisquet@gmail.com>
Tested-by: Benoit Fouet <benoit.fouet@free.fr>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2014-12-03 11:56:22 +01:00
Thilo Borgmann
d814a839ac Reinstate proper FFmpeg license for all files. 2013-08-30 15:47:38 +00:00
Diego Biurrun
26301caaa1 x86: mmx2 ---> mmxext in asm constructs 2012-11-14 00:58:51 +01:00
Diego Biurrun
04581c8c77 x86: yasm: Use complete source path for macro helper %includes 
This is more consistent with the way we handle C #includes and
it simplifies the build system.
 2012-10-31 00:37:42 +01:00
Diego Biurrun
6860b4081d x86: include x86inc.asm in x86util.asm 
This is necessary to allow refactoring some x86util macros with cpuflags.
 2012-10-31 00:37:42 +01:00
Dave Yeo
197439c1ef x86: pngdsp: Fix assembly for OS/2 
The a.out object format does not allow aligning sections.
On OS/2 LD aligns sections to 16 bytes.

Signed-off-by: Diego Biurrun <diego@biurrun.de>
 2012-08-08 15:45:09 +02:00
Ronald S. Bultje
4ff6dea390 pngdsp: swap argument inversion. 2012-02-07 14:32:26 -08:00
Ronald S. Bultje
af79a0c48a png: add support for bpp>4 to paeth x86 SIMD code. 
This fixes playback of e.g. RGB48 (bpp=6) content on x86 CPUs. Fixes
bug 214.
 2012-01-29 21:22:50 -08:00
Ronald S. Bultje
f91c4b7824 png: add SSE2 version for add_bytes_l2. 2012-01-29 18:52:17 -08:00
Ronald S. Bultje
59f474b49d png: convert DSP functions to yasm. 2012-01-29 18:47:50 -08:00