142e76f105
swscale: fix crash with dithering due incorrect offset calculation.
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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>
2011-07-10 14:52:21 -07:00
5c391a161a
swscale: rename uv_off/uv_off2 to uv_off_px/byte.
2011-07-08 15:15:31 -07:00
1ce724ee39
swscale: implement error dithering in planarCopyWrapper.
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Based on a somewhat similar idea in FFmpeg's swscale.
2011-07-08 15:15:31 -07:00
4e3e333a79
swscale: error dithering for 16/9/10-bit to 8-bit.
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Based on a somewhat similar idea in FFmpeg's swscale copy.
2011-07-08 15:15:30 -07:00
7d7bacf0f1
swscale: fix overflow in 16-bit vertical scaling.
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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.
2011-07-08 15:15:30 -07:00
bf2cba4532
swscale: fix crash in 8-bpc bilinear output without alpha.
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We accessed the alpha array even it wasn't used and didn't
exist, hence leading to a NULL pointer segfault.
2011-07-08 15:15:30 -07:00
f44d50a94c
swscale: fix 16-bit horizontal scaling underflow.
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When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.
2011-07-08 15:15:30 -07:00
42d622fab3
swscale: fix 16-bit scaling when output is 8-bits.
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We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.
2011-07-08 15:15:30 -07:00
f28aaae1c5
swscale: amend documentation to mention use of native depth for scaling.
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2011-07-06 03:33:36 +02:00
e589e4b82d
Remove unused static tables and static inline functions.
2011-07-04 14:59:35 +02:00
abc78a5a7c
Do not include log.h in avutil.h
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-03 21:42:07 +01:00
d49ea4afb4
Do not include pixfmt.h in avutil.h
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-07-03 21:42:07 +01:00
01c17c88ed
doxygen: Remove spurious documentation for non-existing function parameters.
2011-07-03 18:30:02 +02:00
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.
2011-07-02 08:33:52 -07:00
8a8d0ce208
swscale: for >8bit scaling, read in native bit-depth.
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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.
2011-07-01 09:08:26 -07:00
81cc7d0bd1
swscale: fix another yuv range conversion overflow in 16bit scaling.
2011-06-30 07:05:52 -07:00
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>
2011-06-30 11:58:38 +03:00
e0b8fff6c7
swscale: fix yuv range correction when using 16-bit scaling.
2011-06-29 21:04:45 -07:00
ef1ee362b3
swscale: implement >8bit scaling support.
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This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
2011-06-29 09:45:52 -07:00
4578435f35
swscale: Add Doxygen for hyscale_fast/hScale.
2011-06-29 01:20:34 +02:00
635930d466
PPC: swscale: disable altivec functions for unsupported formats
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-28 23:22:31 +01:00
d6cc6ac6b8
swscale: Add Doxygen for yuv2planar*/yuv2packed* functions.
2011-06-28 20:18:58 +02:00
57b4a3dd2b
build: include sub-makefiles using full path instead of symlinks
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-28 18:15:19 +01:00
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.
2011-06-27 21:24:44 -07:00
dff5a83532
swscale: re-add support for non-native endianness.
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This works through some non-obvious hacks in utils.c.
2011-06-27 18:10:41 -07:00
3d3c814937
swscale: disentangle yuv2rgbX_c_full() into small functions.
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This is part of the Great Evil Plan to simplify swscale.
2011-06-27 18:10:24 -07:00
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.
2011-06-27 18:10:03 -07:00
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.
2011-06-27 18:05:16 -07:00
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.
2011-06-27 17:15:41 -07:00
97535ffb97
swscale: remove unused xInc/srcW arguments from hScale().
2011-06-26 14:41:44 -07:00
a6213f3dce
build: Remove redundant config.mak includes from subdirectory Makefiles.
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Calling Make from subdirectories is not supported and config.mak has
multiple inclusion guards anyway, so the top-level include is enough.
2011-06-25 13:02:51 +02:00
087d93f568
swscale: Remove unused variable from ff_bfin_get_unscaled_swscale().
2011-06-21 20:53:52 +02:00
0793531859
Bump major version for b8e893399f
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On architectures such as x86 (both 32 bit and 64bit), the stack element
size is fixed, which maintains alignment. Here, this change does not
break anything. However, we also support also other architectures where
this property is not maintained and therefore, applications will crash
horribly.
This change effectively forces all applications to be recompiled against
libswscale.
2011-06-20 18:01:39 +02:00
3636e791ec
swscale: use SwsContext for av_log when available
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Signed-off-by: Diego Biurrun <diego@biurrun.de>
2011-06-15 13:20:20 +02:00
a60466dbc3
swscale: Remove HAVE_MMX from files that are only compiled with MMX enabled.
2011-06-15 01:18:10 +02:00
97e057ff81
swscale: Fix compilation with --disable-mmx2.
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Some MMX2 functions were being referenced without proper #ifdefs.
2011-06-15 01:17:59 +02:00
4e05830205
swscale: remove misplaced comment.
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The comment should have been placed only in
yuv2rgb48_X_c_template, not yuv2rgb48_1_c_template.
2011-06-14 16:55:24 -04:00
9f63211175
swscale: split out RGB48 output functions from yuv2packed[12X]_c().
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This is part of the Great Evil Plan to simplify swscale. Note that
you'll see some code duplication between the output functions for
different RGB variants, and even between packed-YUV and RGB
variants. This is intentional because it improves readability.
2011-06-14 15:59:14 -04:00
0af8a71d66
swscale: fix JPEG-range YUV scaling artifacts.
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YUV planes were marked as uint16_t, but they contained signed data.
Fixes issue 1108 and 675.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-06-14 09:46:49 -04:00
103278f7b0
libavutil/swscale: YUV444P10/YUV444P9 support.
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Also add missing glue code for recently added YUV422P10 formats
to swscale.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2011-06-10 15:12:24 -04:00
af2faf2076
swscale: split YUYV output out of yuv2packed[12X]_c().
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This is part of the Great Evil Plan to simplify swscale.
2011-06-09 20:52:38 -04:00
6b105e3ee6
swscale: extract monowhite/black output from yuv2packed[12X]_c().
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This is part of the Great Evil Plan to simplify swscale.
2011-06-09 16:47:45 -04:00
6d4d483eee
swscale: de-macro'ify RGB15/16/32 input functions.
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Inline functions are easier to read, maintain, modify and test,
which justifies the slightly increased source size. This patch
also adds support for non-native endianness RGB15/16 and fixes
isSupportedOutput() to no longer claim that we support writing
non-native RGB565/555/444.
2011-06-09 16:47:45 -04:00
e2babb9b47
swscale: rearrange code.
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This way the code in the file is less cluttered all-over-the-
place.
2011-06-09 16:47:45 -04:00
dbd3183935
swscale: change 48bit RGB input macros to inline functions.
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Inline functions are slightly larger in source code, but
are easier to handle in source code editors. The binary code
generated is the same.
2011-06-09 09:29:20 -04:00
f30ee65700
swscale: change 9/10bit YUV input macros to inline functions.
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Inline functions are slightly larger in source code, but
are easier to handle in source code editors. The binary code
generated is the same.
2011-06-09 09:29:03 -04:00
aa39f5f6d6
swscale: extract gray16 output functions from yuv2packed[12X]().
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This is part of the Great Evil Plan to simplify swscale.
2011-06-09 09:29:02 -04:00
f1e0b90c64
swscale: use standard clipping functions.
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This generates better code on some non-x86 architectures.
2011-06-09 09:27:51 -04:00
e458b53605
swscale: merge macros that are used only once.
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This reduces source code size without affecting the binary.
2011-06-09 09:26:00 -04:00
6e5a8d3c9a
swscale: fix function declarations in swscale.c.
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Remove inline keyword from functions that are never inlined.
Use av_always_inline for functions that should be force-inlined
for performance reasons. Use av_cold for init functions.
2011-06-09 09:25:59 -04:00
Anton Mitrofanov
Ronald S. Bultje
Diego Biurrun
Mans Rullgard
Mohamed Naufal
Ronald Bultje
Reinhard Tartler
Janne Grunau
Michael Niedermayer