Ronald S. Bultje
baba2eedac
swscale: extend mmx padding.
...
Fixes a crash when forcing libc to strictly adhere to malloc sizes.
14 years ago
Ronald S. Bultje
55eda370cb
swscale: clip unscaled colorspace conversion path.
...
Prevents overflows on very bright scenes when adding dither,
which may lead to black dots.
14 years ago
Diego Biurrun
96c1e6d40d
doxygen: Make sure parameter names match between .c and .h files.
14 years ago
Michael Niedermayer
e1d9cee13d
sws: dont mess with XInc when the code needing it isnt used
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Michael Niedermayer
29fb1b5a06
sws: Fix chroma init for 32bit buffers.
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Ronald S. Bultje
c59f9a68e2
swscale: error dithering for 16/9/10-bit to 8-bit.
...
Based on a somewhat similar idea in FFmpeg's swscale copy.
14 years ago
Ronald S. Bultje
93a10dd561
swscale: fix overflow in 16-bit vertical scaling.
...
We operated on 31-bits, but with e.g. lanczos scaling, values can
add up to beyond 0x80000000, thus leading to output of zeroes. Drop
one bit of precision fixes this.
14 years ago
Ronald S. Bultje
71a04bc19d
swscale: fix crash in 8-bpc bilinear output without alpha.
...
We accessed the alpha array even it wasn't used and didn't
exist, hence leading to a NULL pointer segfault.
(cherry picked from commit bf2cba4532
)
14 years ago
Ronald S. Bultje
ac9ac45aca
swscale: fix 16-bit scaling when output is 8-bits.
...
We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.
14 years ago
Michael Niedermayer
08b57574c6
sws: fix non native endian 9-15 bit input with 16bit out
14 years ago
Michael Niedermayer
ca78fa24b7
sws: disable scale16 when int32 is used
14 years ago
Michael Niedermayer
987e4c1787
sws: fix rgb -> 16bit
14 years ago
Michael Niedermayer
b5ff61695f
sws: fix uv overwrite in 32bt
14 years ago
Michael Niedermayer
d2c910b9a4
sws: fix gray16_1
14 years ago
Michael Niedermayer
9470205414
sws:ix yuv2rgb48_1_c_template()
14 years ago
Michael Niedermayer
ae05dd8731
sws: fix 16/32 bug from merge
14 years ago
Ronald S. Bultje
948ccdadf4
swscale: for >8bit scaling, read in native bit-depth.
...
For 9/10bit, it means we don't have to upscale to 16bit before
actual scaling or pixel format conversion, and thus a performance
gain.
14 years ago
Anton Mitrofanov
142e76f105
swscale: fix crash with dithering due incorrect offset calculation.
...
ptrdiff_t can be 4 bytes, which leads to the next element being 4-byte
aligned and thus at a different offset than intended. Forcing 8-byte
alignment forces equal offset of dither16/32 on x86-32 and x86-64.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
14 years ago
Ronald S. Bultje
5c391a161a
swscale: rename uv_off/uv_off2 to uv_off_px/byte.
14 years ago
Ronald S. Bultje
1ce724ee39
swscale: implement error dithering in planarCopyWrapper.
...
Based on a somewhat similar idea in FFmpeg's swscale.
14 years ago
Ronald S. Bultje
4e3e333a79
swscale: error dithering for 16/9/10-bit to 8-bit.
...
Based on a somewhat similar idea in FFmpeg's swscale copy.
14 years ago
Ronald S. Bultje
7d7bacf0f1
swscale: fix overflow in 16-bit vertical scaling.
...
We operated on 31-bits, but with e.g. lanczos scaling, values can
add up to beyond 0x80000000, thus leading to output of zeroes. Drop
one bit of precision fixes this.
14 years ago
Ronald S. Bultje
bf2cba4532
swscale: fix crash in 8-bpc bilinear output without alpha.
...
We accessed the alpha array even it wasn't used and didn't
exist, hence leading to a NULL pointer segfault.
14 years ago
Ronald S. Bultje
f44d50a94c
swscale: fix 16-bit horizontal scaling underflow.
...
When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.
14 years ago
Ronald S. Bultje
42d622fab3
swscale: fix 16-bit scaling when output is 8-bits.
...
We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.
14 years ago
Ronald S. Bultje
f28aaae1c5
swscale: amend documentation to mention use of native depth for scaling.
...
Signed-off-by: Diego Biurrun <diego@biurrun.de>
14 years ago
Diego Biurrun
e589e4b82d
Remove unused static tables and static inline functions.
14 years ago
Mans Rullgard
abc78a5a7c
Do not include log.h in avutil.h
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Mans Rullgard
d49ea4afb4
Do not include pixfmt.h in avutil.h
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Diego Biurrun
01c17c88ed
doxygen: Remove spurious documentation for non-existing function parameters.
14 years ago
Ronald S. Bultje
8f440223f6
swscale: disable full_chroma_int when converting to non-24/32bpp RGB.
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This functionality is only implemented for RGB24/32 and causes crashes
otherwise.
14 years ago
Ronald S. Bultje
8a8d0ce208
swscale: for >8bit scaling, read in native bit-depth.
...
For 9/10bit, it means we don't have to upscale to 16bit before
actual scaling or pixel format conversion, and thus a performance
gain.
14 years ago
Ronald S. Bultje
afb9d4e8f1
swscale: fix another yuv range conversion overflow in 16bit scaling.
...
(cherry picked from commit 81cc7d0bd1
)
14 years ago
Ronald S. Bultje
ebb0d60353
swscale: fix yuv range correction when using 16-bit scaling.
...
(cherry picked from commit e0b8fff6c7
)
14 years ago
Ronald S. Bultje
81cc7d0bd1
swscale: fix another yuv range conversion overflow in 16bit scaling.
14 years ago
Mohamed Naufal
705b21a06e
swscale: Unbreak build with --enable-small
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This fixes building with --enable-small, by using the correct
variable name.
Signed-off-by: Martin Storsjö <martin@martin.st>
14 years ago
Ronald S. Bultje
e0b8fff6c7
swscale: fix yuv range correction when using 16-bit scaling.
14 years ago
Ronald S. Bultje
45f6ffe5e9
swscale: implement >8bit scaling support.
...
This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
14 years ago
Ronald S. Bultje
ef1ee362b3
swscale: implement >8bit scaling support.
...
This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
14 years ago
Michael Niedermayer
9e17d051ac
swscale: Fix yuv422p10
...
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Ronald S. Bultje
4578435f35
swscale: Add Doxygen for hyscale_fast/hScale.
14 years ago
Mans Rullgard
635930d466
PPC: swscale: disable altivec functions for unsupported formats
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Ronald S. Bultje
d6cc6ac6b8
swscale: Add Doxygen for yuv2planar*/yuv2packed* functions.
14 years ago
Mans Rullgard
57b4a3dd2b
build: include sub-makefiles using full path instead of symlinks
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Ronald S. Bultje
13a099799e
swscale: change prototypes of scaled YUV output functions.
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Remove unused variables "flags" and "dstFormat" in yuv2packed1,
merge source rows per plane for yuv2packed[12], and make every
source argument int16_t (some where invalidly set to uint16_t).
This prevents stack pollution and is part of the Great Evil Plan
to simplify swscale.
14 years ago
Ronald S. Bultje
dff5a83532
swscale: re-add support for non-native endianness.
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This works through some non-obvious hacks in utils.c.
14 years ago
Ronald S. Bultje
3d3c814937
swscale: disentangle yuv2rgbX_c_full() into small functions.
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This is part of the Great Evil Plan to simplify swscale.
14 years ago
Ronald Bultje
6fba14eecb
swscale: split yuv2packed[12X]_c() remainders into small functions.
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This is part of the Great Evil Plan to simplify swscale.
14 years ago
Ronald S. Bultje
dc179ec819
swscale: split yuv2packedX_altivec in smaller functions.
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This will likely lead to a considerable performance boost,
since it removes a branch from the inner loop. Part of the
Great Evil Plan to simplify swscale.
14 years ago
Ronald S. Bultje
0d994b2f45
swscale: don't use planar output functions to write to NV12/21.
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This prevents a crash when converting to NV12/21 without the bitexact
flags enabled.
14 years ago