FFmpeg

Commit Graph

Author	SHA1	Message	Date
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	12 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
Ronald S. Bultje	3cac475655	swscale: move YUV2PACKED16WRAPPER() macro down to where it is used.	13 years ago
Ronald S. Bultje	c0b87359b2	swscale: handle gray16 as a "planar" YUV format (Y-only, of course). This allows removing any gray16-specific code, which is essentially identical to the per-plane code in yuv2plane*().	13 years ago
Ronald S. Bultje	d63b7d8c37	swscale: fix incorrect chroma bias in yuv2rgb48_1_c().	13 years ago
Ronald S. Bultje	1ca7dc60d2	swscale: fix invalid memory accesses in yuvpacked1() functions.	13 years ago
Ronald S. Bultje	2144941069	swscale: split C output functions into separate file. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Ronald S. Bultje	2dd7a1c030	swscale: Split C input functions into separate file. Signed-off-by: Diego Biurrun <diego@biurrun.de>	13 years ago
Ronald S. Bultje	f5490fbe3b	swscale: remove obsolete comment.	13 years ago
Paul B Mahol	08d8029ea8	swscale: more generic check for planar destination formats with alpha Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Paul B Mahol	762311ff94	swscale: fix conversion into yuva444p from non-alpha formats Signed-off-by: Paul B Mahol <onemda@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	bc11580007	sws: Remove unneeded YUV cliping from yuv2rgb_X_c_template() This should slightly improve speed. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	0644cabd7a	sws: Move yuv2rgb clipping into the tables. This fixes some cases where the clipping was entirely missing. Signed-off-by: Michael Niedermayer <michaelni@gmx.at> Thanks (for the comments and review) -to: Reimar, beastd, Ronald	13 years ago
Michael Niedermayer	5ab6f0fe5a	Revert "swscale: fix integer overflows in RGB pixel writing." This reverts commit `77d88b872d`. The revert fixes actual overflows and a segfault as the variables are signed and can be negative. Conflicts: libswscale/swscale.c Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	5cad970971	swscale: RGB4444 and BGR444 input Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	2ba65879b5	swscale: remove unused U/V arguments from yuv2rgb_write(). Also document the function somewhat.	13 years ago
Ronald S. Bultje	6b3995ccd1	swscale: remove obsolete comment.	13 years ago
Ronald S. Bultje	9ea3501d87	swscale: don't show full-chroma-int warning for non-RGB output. Non-RGB output always uses full chroma interpolation.	13 years ago
Ronald S. Bultje	d49352c7cc	swscale: fix overflows in vertical scaling at top/bottom edges. This fixes integer multiplication overflows in RGB48 output (vertical) scaling as detected by IOC. What happens is that for certain types of filters (lanczos, spline, bicubic), the intermediate sum of coefficients in the middle of a filter can be larger than the fixed-point equivalent of 1.0, even if the final sum is 1.0. This is fine and we support that. However, at frame edges, initFilter() will merge the coefficients for the off-screen pixels into the top or bottom pixel, such as to emulate edge extension. This means that suddenly, a single coefficient can be larger than the fixed-point equivalent of 1.0, which the vertical scaling routines do not support. Therefore, remove the merging of coefficients for edges for the vertical scaling filter, and instead add edge detection to the scaler itself so that it copies the pointers (not data) for the edges (i.e. it uses line[0] for line[-1] as well), so that a single coefficient is never larger than the fixed-point equivalent of 1.0.	13 years ago
Ronald S. Bultje	72dafea0fc	swscale: fix overflow in gray16 vertical scaling. This fixes the same overflow as in the RGB48/16-bit YUV scaling; some filters can overflow both negatively and positively (e.g. spline/lanczos), so we bias a signed integer so it's "half signed" and "half unsigned", and can cover overflows in both directions while maintaining full 31-bit depth. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	77d88b872d	swscale: fix integer overflows in RGB pixel writing. We're shifting individual components (8-bit, unsigned) left by 24, so making them unsigned should give the same results without the overflow. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Ronald S. Bultje	be1bafc303	swscale: fix overflows in output of RGB48 pixels. For certain types of filters where the intermediate sum of coefficients can go above the fixed-point equivalent of 1.0 in the middle of a filter, the sum of a 31-bit calculation can overflow in both directions and can thus not be represented in a 32-bit signed or unsigned integer. To work around this, we subtract 0x40000000 from a signed integer base, so that we're halfway signed/unsigned, which makes it fit even if it overflows. After the filter finishes, we add the scaled bias back after a shift. We use the same trick for 16-bit bpc YUV output routines. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Ronald S. Bultje	4391805916	swscale: fix overflows in RGB rounding constants. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	373211d828	Remove extraneous semicolons These semicolons cause invalid empty top-level declarations. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago

45 Commits (4ba5dbc0e4dc8737c71af77b6a5a905d6de2b76b)