Derek Buitenhuis
33c827f632
swscale: Properly scale YUV
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Only shift limited range luma, and always only shift chroma
for upconversion.
Based off a patch by Michael Niedermayer.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
10 years ago
Michael Niedermayer
700bf1fa4e
swscale/swscale_unscaled: fix ya16 input
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago
Vittorio Giovara
f84a1b597c
swscale: support AV_PIX_FMT_YA16 as input
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Based on a long debug session with Kostya.
10 years ago
Vittorio Giovara
e96c3b81ca
avutil: rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8
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The rationale is that you have a packed format in form
<greyscale sample> <alpha sample> <greyscale sample> <alpha sample>
and shortening greyscale to 'G' might make one thing about Greenscale instead.
An alias pixel format and color space name are provided for compatibility.
10 years ago
Kostya Shishkov
5420099cab
swscale: correctly pad destination buffer in rgb conversion
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Bug-Id: 772
CC: libav-stable@libav.org
Found-By: Justin Ruggles <justin.ruggles@gmail.com>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
10 years ago
Diego Biurrun
880e2aa236
Remove all Blackfin architecture optimizations
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Blackfin is a painful platform to work with, no test machines are available
and the range of multimedia applications is dubious. Thus it only represents
a maintenance burden.
11 years ago
Michael Niedermayer
421b21ca8a
sws: dont use the optimized 410->420 unscaled conversion when height%4
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Fixes Ticket3594
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Justin Ruggles
d9a542ace1
swscale: Set alpha to opaque for internal palettes.
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Fixes conversion of pal8 to rgb formats with alpha.
Updated references for 2 FATE tests which previously encoded fully
transparent images.
Based on a patch by Baptiste Coudurier <baptiste.coudurier@gmail.com>
11 years ago
Justin Ruggles
20c38c9c18
swscale: fix some undefined signed left shifts
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Based on a patch by Michael Niedermayer <michaelni@gmx.at>
11 years ago
Justin Ruggles
60c4660ba0
swscale: fix an implementation-defined unsigned-to-signed conversion
11 years ago
Janne Grunau
0ca0924c10
swscale: add endianness conversion for AV_PIX_FMT_BGRA64|RGBA64
11 years ago
Peter Ross
02b63246cf
libswscale: bayer to rgb24 & yv12 colorspace converters
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
9047491f8b
swscale: add nv12/nv21->yuv420 converter
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
11 years ago
Michael Niedermayer
eb01a25fe1
swscale: fix stride used in planarToNv12Wrapper()
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
11 years ago
Michael Niedermayer
6bd001d766
swscale: disable ARM code until its build failure with clang/iphone is fixed
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See: "19:40 Yu Xiaolei Re: [FFmpeg-devel] [PATCH] fix build with gas-preprocessor.pl"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
6044f161d3
Revert "swscale: disable ARM code until its build failure with clang/iphone is fixed"
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This reverts commit c8c7736c10
.
11 years ago
Carl Eugen Hoyos
693a36b6f8
Unscaled 16bit packed RGB to planar GBR converter.
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Fixes r210(rgb48) -> ffv1 (gbrp10) -> r210 roundtrip
as reported by forum user JasonCA.
11 years ago
Michael Niedermayer
c8c7736c10
swscale: disable ARM code until its build failure with clang/iphone is fixed
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Yu Xiaolei
1c67ad9d93
swscale: NEON optimized unscaled rgba to nv12 conversion
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Signed-off-by: Yu Xiaolei <dreifachstein@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
94d7ca2b58
swscale: fix used stride in planarToNv12Wrapper()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
ef627bf9ec
swscale: add nv12/nv21->yuv420 converter
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
6909a611d2
swscale/swscale_unscaled: fix right column handling in planarCopyWrapper
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Found-by: Михаил <Micky53@mail.ru>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Paul B Mahol
37d6b2b4e6
swsscale/swscale_unscaled: add GBRAP16
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Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
9ec9d46365
swscale/swscale_unscaled: fix alpha pointer & stride for planarRgb16ToRgb16Wrapper()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Michael Niedermayer
13eff473ad
swscale/swscale_unscaled: fix alpha values for rgb/bgr -> RGB32_1 / BGR32_1
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Found-by: Justin Ruggles
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
11 years ago
Diego Biurrun
1909f6b1b6
swscale: cosmetics: Drop silly camelCase from swScale function pointer name
11 years ago
Diego Biurrun
3aa682f253
swscale: consistent names for arch-specific acceleration functions
11 years ago
Diego Biurrun
c2503d9c8a
swscale: ppc: Hide arch-specific initialization details
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Also give consistent names to init functions.
11 years ago
Michael Niedermayer
23b3141261
swscale: improve dither checks
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Bssed on patch by Øyvind Kolås <pippin@gimp.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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
Michael Niedermayer
60e9b8556a
swscale_unscaled: make dither_scale static, its not used elsewhere and has no prefix
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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
Diego Biurrun
d258531502
swscale: Mark a bunch of tables only used within one file static
11 years ago
Carl Eugen Hoyos
7800b09ece
Check more completely for invalid pix_fmts in planarRgb16ToRgb16Wrapper()
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This makes the conversion function more robust.
12 years ago
Michael Niedermayer
0047da071e
swscale/swscale_unscaled: add ()
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Fixes order of operations
Fixes CID1030350
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Carl Eugen Hoyos
d5978c8678
Add unscaled converter from GBRP > 8bit to RGBx48/64.
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Fixes ticket #2633 .
Tested-by: Michael Cinquin
12 years ago
Anton Khirnov
e6c4ac7b5f
pixdesc: rename PIX_FMT_* flags to AV_PIX_FMT_FLAG_*
12 years ago
Michael Niedermayer
91f4a44ff4
sws/packed_16bpc_bswap: fix handling of negative stride
12 years ago
Clément Bœsch
570d63eef3
lavu: add FF_CEIL_RSHIFT and use it in various places.
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
Janne Grunau
9cfa21c8c2
swscale: support endianness conversion for AV_PIX_FMT_XYZ12
12 years ago
Michael Niedermayer
7f17e0ff6a
sws: add 16bit gbrp formats to packed_16bpc_bswap()
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
f5cca47fde
sws: extend packed_16bpc_bswap code to handle planar formats
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
a37fd7f957
sws: Update rgb24toyv12_c() to user supplied rgb2yuv tables
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As the function arguments change, we also change the function name
to ensure that anyone using this (non public) function doesnt end
with hard to debug crashes. The new name also has a proper prefix.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Anton Khirnov
542b83fc90
Replace some forgotten instances of PIX_FMT_* with AV_PIX_FMT_*.
12 years ago
Derek Buitenhuis
c87c2d0d02
swscale: Add support for unscaled 8-bit Packed RGB -> Planar RGB
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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
12 years ago
Derek Buitenhuis
57c4c25596
swscale: Add support for unscaled 8-bit Packed RGB -> Planar RGB
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Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
12 years ago
Michael Niedermayer
e58013dd8f
sws: use planarRgbToRgbWrapper only for 8bit per component
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The function doesnt support >8bit currently
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
12 years ago
Michael Niedermayer
4e2c63685e
sws: dont write out of array on bigendian
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Fixes Ticket2229
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago
Michael Niedermayer
4e585f6325
sws: use planarRgbToRgbWrapper only for 8bit per component
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The function doesnt support >8bit currently
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago