5da206d3a5
swscale/output: Bias 16bps output calculations to improve non overflowing range
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Fixes: integer overflow
Fixes: ./ffmpeg -f rawvideo -video_size 66x64 -pixel_format yuva420p10le -i ~/videos/overflow_input_w66h64.yuva420p10le -filter_complex "scale=flags=bicubic+full_chroma_int+full_chroma_inp+bitexact+accurate_rnd:in_color_matrix=bt2020:out_color_matrix=bt2020:in_range=full:out_range=full,format=rgba64[out]" -pixel_format rgba64 -map '[out]' -y overflow_w66h64.png
Found-by: Drew Dunne <asdunne@google.com>
Tested-by: Drew Dunne <asdunne@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0f0afc7fb5
2023-05-26 00:04:30 +02:00
0a308576bf
swscale/output: Fix integer overflow in yuv2rgb_write_full() with out of range input
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Fixes: signed integer overflow: 1169365504 + 981452800 cannot be represented in type 'int'
Fixes: ticket8293
Found-by: Suhwan
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit e057e83a4f
2020-07-03 12:10:24 +02:00
4cdf6dc908
swscale/output: Fix integer overflow in alpha computation in yuv2gbrp16_full_X_c()
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Fixes: signed integer overflow: 524280 * 4432 cannot be represented in type 'int'
Fixes: ticket8322
Found-by: Suhwan
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 49ba1879ad
2020-07-03 12:10:23 +02:00
f541744f73
swscale/output: Fix several invalid shifts in yuv2rgb_full_1_c_template()
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Fixes: Invalid shifts
Fixes : #8320
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7b7f97532b
2020-07-03 12:10:23 +02:00
db4771af81
swscale : add YA16 LE/BE output
2018-10-18 21:43:24 +02:00
582bc5a348
libswscale: Adds conversions from/to float gray format.
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2018-08-14 18:22:39 +02:00
9d5aff09a7
swscale: Add p016 output support and generalise yuv420p1x to p010
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To make the best use of existing code, I generalised the wrapper
that currently does yuv420p10 to p010 to support any mixture of
input and output sizes between 10 and 16 bits. This had the side
effect of yielding a working code path for all yuv420p1x formats
to p01x.
2018-03-02 14:52:48 -08:00
013ec23cbe
swscale: fix gbrap16 alpha channel issues
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Fixes filter-pixfmts-scale test failing on big-endian systems due to
alpSrc not being cast to (const int32_t**).
Also fixes distortions in the output alpha channel values by copying the
alpha channel code from the rgba64 case found elsewhere in output.c.
Fixes ticket 6555.
Signed-off-by: James Cowgill <James.Cowgill@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2017-08-05 23:24:02 +02:00
6427c9ffee
swscale: add gbr(a)p16 output support
2016-12-01 21:37:25 +01:00
b828788d58
swscale: Add GBRAP10 output
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-10 00:33:12 +01:00
2c7d8cbd66
swscale: Add the GBRAP12 output
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-10 00:33:12 +01:00
873d06c76e
swscale/output: Fix alpha shift in yuv2gbrp_full_X_c()
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-10 00:33:12 +01:00
d736b52a04
swscale: Drop is9_OR_10BPS() use, its name is not correct
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Found-by: Luca Barbato
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-11-10 00:33:12 +01:00
99882d05a6
swscale: add support for P010LE/BE output
2016-08-31 13:19:46 +02:00
76d377d0a0
swscale/output: Fix rounding offset in yuv2gbrp_full_X_c()
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-08-23 02:46:02 +02:00
8ef57a0d61
Merge commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb'
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* commit '41ed7ab45fc693f7d7fc35664c0233f4c32d69bb':
cosmetics: Fix spelling mistakes
Merged-by: Clément Bœsch <u@pkh.me>
2016-06-21 21:55:34 +02:00
41ed7ab45f
cosmetics: Fix spelling mistakes
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2016-05-04 18:16:21 +02:00
0f40c90984
Drop pointless assert.h #includes
2016-05-03 15:45:10 +02:00
6de58b4903
swscale: cleanup unused code
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Removed previous swscale code under '#ifndef NEW_FILTER'
and removed unused fields of SwsContext
2016-03-31 16:36:16 -03:00
23261e6001
sws/output: fix ordered dither threshold for mono output
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This makes sure that white stays white and black black
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-02-10 17:22:26 +01:00
b99f498716
swscale/output: Assert that yalpha and uvalpha are within their expected range
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-01-14 21:58:02 +01:00
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>
2015-09-20 01:14:36 +02:00
5d8e836d0e
Replace all remaining occurances of step/depth_minus1 and offset_plus1
2015-09-08 17:10:48 +02:00
151aa2ebff
Merge commit '2268db2cd052674fde55c7d48b7a5098ce89b4ba'
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* commit '2268db2cd052674fde55c7d48b7a5098ce89b4ba':
lavu: Drop the {minus,plus}1 suffix from AVComponentDescriptor fields
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
2015-09-08 16:35:28 +02:00
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>
2015-09-07 12:37:47 +02:00
1909a9151c
swscale/output: Fix "warning: assignment from incompatible pointer type"
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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-25 03:15:56 +02:00
3cb8eee6f7
swscale: ayuv64le output support
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-07-24 03:45:48 +00:00
8255b14c68
swscale/output: fix input indexing in yuv2ya8_2_c()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-07-04 00:03:45 +02:00
ab80d3fb3a
swscale/output: fix null pointer dereference in yuv2ya8_2_c()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-07-03 23:03:25 +02:00
2778fdbe54
swscale: implement YA8 output
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
2015-07-02 17:36:05 +00:00
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>
2015-06-17 00:45:46 +02:00
f140a99f8b
swscale/output: Factorize rgb48 and 64bit code
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-06-17 00:45:46 +02:00
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>
2015-03-25 18:31:25 +01:00
03bffb68f6
swscale: Use av_clip_uintp2()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-02-21 14:49:17 +01:00
928061670e
libswscale: GBRAP input & output and GBRAP16 input support
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Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
2015-01-14 17:17:24 +01:00
ed962414bd
Merge commit '92b099daf4b8ef93513e38b43899cb8458a2fde3'
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* commit '92b099daf4b8ef93513e38b43899cb8458a2fde3':
swscale: support converting YVYU422 pixel format
Conflicts:
libswscale/input.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-09 03:36:38 +02:00
92b099daf4
swscale: support converting YVYU422 pixel format
2014-04-07 23:50:34 +02:00
37f69cd93e
swscale: add full bgra64 support
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-02 19:44:08 +02:00
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
2014-03-25 13:48:06 +01:00
c14fc4585c
Merge commit 'aa2ba8c99e5708884a56aea9c1d96e014866f8a3'
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* commit 'aa2ba8c99e5708884a56aea9c1d96e014866f8a3':
swscale: Move extern declarations for tables to swscale_internal.h
Conflicts:
libswscale/output.c
libswscale/swscale_internal.h
libswscale/swscale_unscaled.c
libswscale/utils.c
libswscale/yuv2rgb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-16 12:56:48 +02:00
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>
2013-08-15 21:39:32 +02:00
aa2ba8c99e
swscale: Move extern declarations for tables to swscale_internal.h
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Also add missing ff_ prefixes where necessary.
2013-08-15 14:38:03 +02:00
b154d203b1
swscale/output: silence warning about undefined 'ASSERT_LEVEL'
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
2013-05-19 14:06:16 +00:00
f4b2d3598b
swscale/output: remove unused header
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
2013-05-19 14:04:14 +00:00
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>
2013-05-18 15:14:19 +02:00
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>
2013-05-18 01:20:30 +02:00
c7c71f95f8
replace remaining PIX_FMT_* flags with AV_PIX_FMT_FLAG_*
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-15 11:23:14 +02:00
e751481cd8
swscale/output: silence compiler warnings about uninitialized variables
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 18:58:02 +02:00
145e644aee
sws/output: remove offset/coef for alpha in rgba64
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-12 22:01:18 +02:00
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>
2013-05-12 21:47:19 +02:00
Michael Niedermayer
Martin Vignali
Sergey Lavrushkin
Philip Langdale
James Cowgill
Paul B Mahol
Luca Barbato
Timo Rothenpieler
Clément Bœsch
Vittorio Giovara
Diego Biurrun
Pedro Arthur
Ganesh Ajjanagadde
Hendrik Leppkes
Michael Niedermayer
Øyvind Kolås