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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
FFmpeg/libswscale
Mark Reid 3f4ce004b8 swscale/input: clip rgbf32 values before lrintf
if the float pixel * 65535.0f > 2147483647.0f
lrintf may overfow and return negative values, depending on implementation.
nan and +/-inf values may also be implementation defined

clip the value first so lrintf always works.

values <     0.0f, -inf, nan = 0.0f
values > 65535.0f, +inf      = 65535.0f

old timings
 195960 decicycles in planar_rgbf32le_to_uv,       1 runs,      0 skips
 186120 decicycles in planar_rgbf32le_to_uv,       2 runs,      0 skips
 188645 decicycles in planar_rgbf32le_to_uv,       4 runs,      0 skips
 183625 decicycles in planar_rgbf32le_to_uv,       8 runs,      0 skips
 181157 decicycles in planar_rgbf32le_to_uv,      16 runs,      0 skips
 177533 decicycles in planar_rgbf32le_to_uv,      32 runs,      0 skips
 175689 decicycles in planar_rgbf32le_to_uv,      64 runs,      0 skips

 232960 decicycles in planar_rgbf32be_to_uv,       1 runs,      0 skips
 221380 decicycles in planar_rgbf32be_to_uv,       2 runs,      0 skips
 216640 decicycles in planar_rgbf32be_to_uv,       4 runs,      0 skips
 213505 decicycles in planar_rgbf32be_to_uv,       8 runs,      0 skips
 211558 decicycles in planar_rgbf32be_to_uv,      16 runs,      0 skips
 210596 decicycles in planar_rgbf32be_to_uv,      32 runs,      0 skips
 210202 decicycles in planar_rgbf32be_to_uv,      64 runs,      0 skips

 161680 decicycles in planar_rgbf32le_to_y,       1 runs,      0 skips
 153540 decicycles in planar_rgbf32le_to_y,       2 runs,      0 skips
 148255 decicycles in planar_rgbf32le_to_y,       4 runs,      0 skips
 140600 decicycles in planar_rgbf32le_to_y,       8 runs,      0 skips
 132935 decicycles in planar_rgbf32le_to_y,      16 runs,      0 skips
 128531 decicycles in planar_rgbf32le_to_y,      32 runs,      0 skips
 140933 decicycles in planar_rgbf32le_to_y,      64 runs,      0 skips

 190980 decicycles in planar_rgbf32be_to_y,       1 runs,      0 skips
 176080 decicycles in planar_rgbf32be_to_y,       2 runs,      0 skips
 167980 decicycles in planar_rgbf32be_to_y,       4 runs,      0 skips
 164685 decicycles in planar_rgbf32be_to_y,       8 runs,      0 skips
 162751 decicycles in planar_rgbf32be_to_y,      16 runs,      0 skips
 162404 decicycles in planar_rgbf32be_to_y,      32 runs,      0 skips
 167849 decicycles in planar_rgbf32be_to_y,      64 runs,      0 skips

new timings
 183320 decicycles in planar_rgbf32le_to_uv,       1 runs,      0 skips
 175700 decicycles in planar_rgbf32le_to_uv,       2 runs,      0 skips
 179570 decicycles in planar_rgbf32le_to_uv,       4 runs,      0 skips
 172932 decicycles in planar_rgbf32le_to_uv,       8 runs,      0 skips
 168707 decicycles in planar_rgbf32le_to_uv,      16 runs,      0 skips
 165224 decicycles in planar_rgbf32le_to_uv,      32 runs,      0 skips
 163423 decicycles in planar_rgbf32le_to_uv,      64 runs,      0 skips

 184940 decicycles in planar_rgbf32be_to_uv,       1 runs,      0 skips
 185150 decicycles in planar_rgbf32be_to_uv,       2 runs,      0 skips
 185790 decicycles in planar_rgbf32be_to_uv,       4 runs,      0 skips
 185472 decicycles in planar_rgbf32be_to_uv,       8 runs,      0 skips
 185277 decicycles in planar_rgbf32be_to_uv,      16 runs,      0 skips
 185813 decicycles in planar_rgbf32be_to_uv,      32 runs,      0 skips
 185332 decicycles in planar_rgbf32be_to_uv,      64 runs,      0 skips

 145400 decicycles in planar_rgbf32le_to_y,       1 runs,      0 skips
 145100 decicycles in planar_rgbf32le_to_y,       2 runs,      0 skips
 143490 decicycles in planar_rgbf32le_to_y,       4 runs,      0 skips
 136687 decicycles in planar_rgbf32le_to_y,       8 runs,      0 skips
 131271 decicycles in planar_rgbf32le_to_y,      16 runs,      0 skips
 128698 decicycles in planar_rgbf32le_to_y,      32 runs,      0 skips
 127170 decicycles in planar_rgbf32le_to_y,      64 runs,      0 skips

 156020 decicycles in planar_rgbf32be_to_y,       1 runs,      0 skips
 146990 decicycles in planar_rgbf32be_to_y,       2 runs,      0 skips
 142020 decicycles in planar_rgbf32be_to_y,       4 runs,      0 skips
 141052 decicycles in planar_rgbf32be_to_y,       8 runs,      0 skips
 138973 decicycles in planar_rgbf32be_to_y,      16 runs,      0 skips
 138027 decicycles in planar_rgbf32be_to_y,      32 runs,      0 skips
 143939 decicycles in planar_rgbf32be_to_y,      64 runs,      0 skips

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
2021-11-15 16:50:10 -03:00
..
aarch64 sws: rename SwsContext.swscale to convert_unscaled 2021-07-03 15:57:53 +02:00
arm sws: rename SwsContext.swscale to convert_unscaled 2021-07-03 15:57:53 +02:00
ppc sws: rename SwsContext.swscale to convert_unscaled 2021-07-03 15:57:53 +02:00
tests libswscale/tests: add floatimg_cmp test 2020-10-02 14:59:52 +02:00
x86 libswscale/x86/rgb2rgb: add shuffle_bytes avx2 2021-10-15 10:59:20 +02:00
alphablend.c swscale/alphablend: Fix slice handling 2021-10-03 20:38:29 +02:00
bayer_template.c swscale: do not drop half of bits from 16bit bayer formats 2020-08-08 12:03:42 +02:00
gamma.c swscale: re-enable gamma 2015-09-04 19:00:20 -03:00
hscale_fast_bilinear.c sws: Move fast bilinear C code into seperate file 2014-07-19 05:36:26 +02:00
hscale.c avutil: Rename FF_CEIL_COMPAT to AV_CEIL_COMPAT 2016-01-27 16:36:46 +00:00
input.c swscale/input: clip rgbf32 values before lrintf 2021-11-15 16:50:10 -03:00
libswscale.v build: Change structure of the linker version script templates 2016-05-29 16:43:11 +02:00
log2_tab.c lsws: duplicate ff_log2_tab 2014-08-12 20:52:21 +02:00
Makefile libswscale/tests: add floatimg_cmp test 2020-10-02 14:59:52 +02:00
options.c libswscale/options: Add parent_log_context_offset to AVClass 2021-09-19 23:52:37 +02:00
output.c swscale: add input/output support for X2BGR10LE 2021-09-26 16:26:10 +02:00
rgb2rgb_template.c swscale/rgb2rgb_template: use shuffle macro on big-endian arches 2020-12-12 23:07:22 -05:00
rgb2rgb.c swscale: aarch64: Add a NEON implementation of interleaveBytes 2020-05-15 23:38:17 +03:00
rgb2rgb.h swscale: aarch64: Add a NEON implementation of interleaveBytes 2020-05-15 23:38:17 +03:00
slice.c Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
swscale_internal.h swscale/swscale_internal: Avoid unsigned for slice parameters 2021-09-30 19:47:15 +02:00
swscale_unscaled.c sws: add a new scaling API 2021-09-06 09:16:52 +02:00
swscale.c swscale/swscale: check SWS_PRINT_INFO flag for printing alignment warnings 2021-11-13 19:55:32 +01:00
swscale.h swscale/swscale: Improve *ColorspaceDetails() doxy 2021-10-24 16:54:36 +02:00
swscaleres.rc Add Windows resource file support for shared libraries 2013-12-05 23:42:07 +01:00
utils.c swscale/utils: Improve return codes of sws_setColorspaceDetails() 2021-10-24 16:54:36 +02:00
version.h sws: add a new scaling API 2021-09-06 09:16:52 +02:00
vscale.c Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +02:00
yuv2rgb.c swscale: add input/output support for X2BGR10LE 2021-09-26 16:26:10 +02:00