Ganesh Ajjanagadde
7cf22c7970
swscale/output: fix undefined left shifts of negative numbers
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This fixes -Wshift-negative-value reported with clang 3.7+, e.g
http://fate.ffmpeg.org/log.cgi?time=20150918181527&log=compile&slot=x86_64-darwin-clang-polly-vectorize-stripmine-3.7 .
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago
Hendrik Leppkes
5d8e836d0e
Replace all remaining occurances of step/depth_minus1 and offset_plus1
9 years ago
Vittorio Giovara
2268db2cd0
lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields
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The new fields can be accessed directly and are more intelligible.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
9 years ago
Michael Niedermayer
1909a9151c
swscale/output: Fix "warning: assignment from incompatible pointer type"
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
9 years ago
Paul B Mahol
3cb8eee6f7
swscale: ayuv64le output support
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
9 years ago
Michael Niedermayer
8255b14c68
swscale/output: fix input indexing in yuv2ya8_2_c()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
ab80d3fb3a
swscale/output: fix null pointer dereference in yuv2ya8_2_c()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Paul B Mahol
2778fdbe54
swscale: implement YA8 output
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
10 years ago
Michael Niedermayer
e29d996149
swscale/output: Add rgba64/rgb48/bgra64/bgr48 output functions with full chroma interpolation
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
f140a99f8b
swscale/output: Factorize rgb48 and 64bit code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
bdcd36a4c8
swscale/output: Fix undefined shifts
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Fixes: da14e86d8462be6493eab16bc2d40f88/asan_heap-oob_204cfd2_528_cov_340150052_COMPRESS.BMP
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Michael Niedermayer
03bffb68f6
swscale: Use av_clip_uintp2()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Paul B Mahol
928061670e
libswscale: GBRAP input & output and GBRAP16 input support
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Øyvind Kolås
3e6016622e
swscale: add two spatially stable dithering methods
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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
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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>
11 years ago
Diego Biurrun
aa2ba8c99e
swscale: Move extern declarations for tables to swscale_internal.h
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Also add missing ff_ prefixes where necessary.
11 years ago
Paul B Mahol
b154d203b1
swscale/output: silence warning about undefined 'ASSERT_LEVEL'
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago
Paul B Mahol
f4b2d3598b
swscale/output: remove unused header
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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
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
c7c71f95f8
replace remaining PIX_FMT_* flags with AV_PIX_FMT_FLAG_*
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
e751481cd8
swscale/output: silence compiler warnings about uninitialized variables
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
145e644aee
sws/output: remove offset/coef for alpha in rgba64
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Paul B Mahol
e1746d057b
swscale: RGBA64 output
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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
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Paul B Mahol
5c057433cc
libswscale: GBRAP input & output and GBRAP16 input support
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
12 years ago
Michael Niedermayer
41ebb64511
swscale/output: fix alpha scale in the new functions
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
a4b5e45e2b
sws/output: add yuv2rgb_full_1_c_template()
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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()
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
d6d5ef5534
sws: GBRP9, GBRP10, and GBRP16 output support
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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
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
61884d1985
sws: GBRP output support
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
ca447592b1
sws: rgb/bgr 4/8 error diffusion dither
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
646ade7679
sws: Support error diffusion dither for mono output
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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.
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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.
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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
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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
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Michael Niedermayer
3be0c86b97
sws: remove cliping in yuv2rgb code.
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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.
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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