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
arm
ppc
tests
x86 libswscale/x86/rgb2rgb: add shuffle_bytes avx2 2021-10-15 10:59:20 +02:00
Makefile
alphablend.c swscale/alphablend: Fix slice handling 2021-10-03 20:38:29 +02:00
bayer_template.c
gamma.c
hscale.c
hscale_fast_bilinear.c
input.c swscale/input: clip rgbf32 values before lrintf 2021-11-15 16:50:10 -03:00
libswscale.v
log2_tab.c
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.c
rgb2rgb.h
rgb2rgb_template.c
slice.c Replace all occurences of av_mallocz_array() by av_calloc() 2021-09-20 01:03:52 +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
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
swscaleres.rc
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