FFmpeg

Commit Graph

Author	SHA1	Message	Date
Michael Niedermayer	03bffb68f6	swscale: Use av_clip_uintp2() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Paul B Mahol	928061670e	libswscale: GBRAP input & output and GBRAP16 input support Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	10 years ago
Vittorio Giovara	92b099daf4	swscale: support converting YVYU422 pixel format	11 years ago
Michael Niedermayer	37f69cd93e	swscale: add full bgra64 support Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Øyvind Kolås	3e6016622e	swscale: add two spatially stable dithering methods Both of these dithering methods are from http://pippin.gimp.org/a_dither/ for GIF they can be considered better than bayer (provides more gray-levels), and spatial stability - often more than twice as good compression and less visual flicker than error diffusion methods (the methods also avoids error-shadow artifacts of diffusion dithers). These methods are similar to blue/green noise type dither masks; but are simple enough to generate their mask on the fly. They are still research work in progress; though more expensive to generate masks (which can be used in a LUT) like 'void and cluster' and similar methods will yield superior results	11 years ago
Michael Niedermayer	1e0e193240	sws: add dither enum This allows specifying more dither algorithms without using up flags and without ambiguities. Also initialize the new field based on the flags and use it. Note, improving the logic of the checks is left to subsequent commits, this here only switches from flags to enum. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	aa2ba8c99e	swscale: Move extern declarations for tables to swscale_internal.h Also add missing ff_ prefixes where necessary.	12 years ago
Paul B Mahol	b154d203b1	swscale/output: silence warning about undefined 'ASSERT_LEVEL' Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	f4b2d3598b	swscale/output: remove unused header Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	e1efacf60b	sws/output: yuv2rgb_write() assert that alpha has the correct value in the tables Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5918b7ac41	sws/output: init A1/A2 so that rgba64 ends with 0xffff in the absence of alpha input Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	c7c71f95f8	replace remaining PIX_FMT_* flags with AV_PIX_FMT_FLAG_* Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	e751481cd8	swscale/output: silence compiler warnings about uninitialized variables Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	145e644aee	sws/output: remove offset/coef for alpha in rgba64 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	e1746d057b	swscale: RGBA64 output Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	7ded017983	sws/output/yuv2gbrp_full_X_c(): silence warning about uninitialized variable clang did not show this one, so i missed it in the last batch Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	8ef453ff83	sws/output: silence warnings about uninitialized use of variables Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	5c057433cc	libswscale: GBRAP input & output and GBRAP16 input support Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	41ebb64511	swscale/output: fix alpha scale in the new functions Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	a4b5e45e2b	sws/output: add yuv2rgb_full_1_c_template() 7500->4500 cycles on sandybridge Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	9204a7dc8e	sws/output: add +yuv2rgb_full_2_c_template() 8100 cycles -> 5800 cycles on sandybridge Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	662664551c	sws/output: factor yuv2rgb_write_full() out Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	d6d5ef5534	sws: GBRP9, GBRP10, and GBRP16 output support Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Michael Niedermayer	4eb93bed4e	swscale: GBRP output support Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>	12 years ago
Michael Niedermayer	e4033d89f1	sws: GBRP9, GBRP10 GBRP12 GBRP14 output support Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	61884d1985	sws: GBRP output support Reviewed-by: Derek Buitenhuis <derek.buitenhuis@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	5c42078b99	sws: fix ED mono dither black level Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	ca447592b1	sws: rgb/bgr 4/8 error diffusion dither Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	646ade7679	sws: Support error diffusion dither for mono output Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Michael Niedermayer	822d10e7c5	swscale: fix 12 and 14 bit YUV planar output with scaling. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Anton Khirnov	0a7068fa5d	sws: do not use av_pix_fmt_descriptors directly.	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Michael Niedermayer	14de55784d	sws/output: use unsigned variables where harmless overflows are expected. signed overflow is undefined in C ... Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Diego Biurrun	5a6e3c039c	swscale: Mark all init functions as av_cold	13 years ago
Michael Niedermayer	22a279539e	yuv2rgb: implement 15/16bit ordered dither Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	bdf28d14f2	sws: extend dither tables by 1 line so simpler arithmetic can be used to address the next line Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	3be0c86b97	sws: remove cliping in yuv2rgb code. This code should not be needed and it slows things down. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Ronald S. Bultje	7f77e9041a	swscale: clip before assigning tables in RGB output functions.	13 years ago
Ronald S. Bultje	4860625236	swscale: fix off-by-one in second coefficient in bilinear filters. If coefficient A is 12-bits xixed-point number "X", then the other coefficient is (1 << 12) - X, not (1 << 12) - X - 1.	13 years ago
Ronald S. Bultje	9206ac80a5	swscale: handle last pixel if lines have an odd width. Fixes bug 270.	13 years ago
Ronald S. Bultje	bc0bdda77b	swscale: handle complete dimensions for monoblack/white. Fixes bug 269.	13 years ago
Ronald S. Bultje	9487fb4dea	swscale: clip unscaled output intermediates. Fixes bug 240, as well as several integer overflows (visible as glitches) in other scaling output routines, e.g. YUV422.	13 years ago
Michael Niedermayer	4a9f466b99	Fix alpha overflow when converting from RGBA64 to RGBA. Fixes converting the sample from ticket #503 to 32bit RGB.	13 years ago
Ronald S. Bultje	25c42234a9	swscale: make monowhite/black RGB-independent. Disadvantage is that it no longer allows modifying brightness through adjustment of the RGB lookup table. Advantage is that now monowhite/black no longer need to be identified as a RGB format.	13 years ago
Michael Niedermayer	94bc672489	swscale: yuv2422_2_c_template() add cliping. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	f03a029939	swscale: Add cliping to yuv2422_1_c_template() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	ef96bf294d	swscale: Fix rounding in yuv2mono_1_c_template() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	c0c32a3704	swscale: Fix rounding in yuv2rgb_1_c_template() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	2bc610ddc5	swscale: yuv2422_1_c_template: fix rounding Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Diego Biurrun	7331b6e718	Drop some completely unnecessary av_unused attributes.	13 years ago

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68 Commits (59f687b73ceb40e53314c5c1607669e97fcd9d13)