FFmpeg

Commit Graph

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>	10 years ago
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>	10 years ago
Thilo Borgmann	d814a839ac	Reinstate proper FFmpeg license for all files.	11 years ago
Diego Biurrun	26301caaa1	x86: mmx2 ---> mmxext in asm constructs	12 years ago
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.	12 years ago
Diego Biurrun	6860b4081d	x86: include x86inc.asm in x86util.asm This is necessary to allow refactoring some x86util macros with cpuflags.	12 years ago
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>	13 years ago
Reimar Döffinger	394d41ee30	Partially revert "Fix png decoding on x86." This partially reverts commit `58dabf7bf2`. It is no longer necessary to use unaligned mov. The swapped mov argument fix remains though.	13 years ago
Ronald S. Bultje	4ff6dea390	pngdsp: swap argument inversion.	13 years ago
Reimar Döffinger	58dabf7bf2	Fix png decoding on x86. Line sizes are only 8-byte aligned, so use unaliged loads for add_bytes_l2 pointers. Increasing the alignment requirement to 16 seemed a bit extreme (png may be used for rather small sizes). Also fix a mov that had its arguments swapped, leading add_bytes_l2 being applied on up to 8 bytes too few. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>	13 years ago
KO Myung-Hun	c853124fb0	Use SECTION_TEXT instead of section .text for the compatibility aout does not support 'align='. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
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.	13 years ago
Ronald S. Bultje	f91c4b7824	png: add SSE2 version for add_bytes_l2.	13 years ago
Ronald S. Bultje	59f474b49d	png: convert DSP functions to yasm.	13 years ago

11 Commits (443bd2715d42c8cd867a1f47ff6edf44e12d53db)