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authorPaul B Mahol <onemda@gmail.com>2022-10-20 20:38:55 +0300
committerPaul B Mahol <onemda@gmail.com>2022-10-27 11:23:24 +0300
commit00b03331a018cf59740153a20c762b714253dd10 (patch)
treebe932f62f6ed833f6533eac63d60f2893ee24454 /libavfilter
parent0e5e3b37c0a653c2f08a4e83db1c225e335f0037 (diff)
avfilter/vf_threshold: fix handling of zero threshold
Diffstat (limited to 'libavfilter')
-rw-r--r--libavfilter/vf_threshold_init.h4
-rw-r--r--libavfilter/x86/vf_threshold.asm23
2 files changed, 10 insertions, 17 deletions
diff --git a/libavfilter/vf_threshold_init.h b/libavfilter/vf_threshold_init.h
index 7d160ddbb9..64a0a861ba 100644
--- a/libavfilter/vf_threshold_init.h
+++ b/libavfilter/vf_threshold_init.h
@@ -38,7 +38,7 @@ static void threshold8(const uint8_t *in, const uint8_t *threshold,
{
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++)
- out[x] = in[x] < threshold[x] ? min[x] : max[x];
+ out[x] = in[x] <= threshold[x] ? min[x] : max[x];
in += ilinesize;
threshold += tlinesize;
@@ -64,7 +64,7 @@ static void threshold16(const uint8_t *iin, const uint8_t *tthreshold,
for (int y = 0; y < h; y++) {
for (int x = 0; x < w; x++)
- out[x] = in[x] < threshold[x] ? min[x] : max[x];
+ out[x] = in[x] <= threshold[x] ? min[x] : max[x];
in += ilinesize / 2;
threshold += tlinesize / 2;
diff --git a/libavfilter/x86/vf_threshold.asm b/libavfilter/x86/vf_threshold.asm
index 098069b083..8977a586c0 100644
--- a/libavfilter/x86/vf_threshold.asm
+++ b/libavfilter/x86/vf_threshold.asm
@@ -22,15 +22,10 @@
%include "libavutil/x86/x86util.asm"
-SECTION_RODATA
-
-pb_128: times 16 db 128
-pb_128_0 : times 8 db 0, 128
-
SECTION .text
-;%1 depth (8 or 16) ; %2 b or w ; %3 constant
-%macro THRESHOLD 3
+;%1 depth (8 or 16) ; %2 b or w
+%macro THRESHOLD 2
%if ARCH_X86_64
cglobal threshold%1, 10, 13, 5, in, threshold, min, max, out, ilinesize, tlinesize, flinesize, slinesize, olinesize, w, h, x
mov wd, dword wm
@@ -45,7 +40,6 @@ cglobal threshold%1, 5, 7, 5, in, threshold, min, max, out, w, x
%define olinesizeq r9mp
%define hd r11mp
%endif
- VBROADCASTI128 m4, [%3]
%if %1 == 16
add wq, wq ; w *= 2 (16 bits instead of 8)
%endif
@@ -63,9 +57,8 @@ cglobal threshold%1, 5, 7, 5, in, threshold, min, max, out, w, x
movu m0, [thresholdq + xq]
movu m2, [minq + xq]
movu m3, [maxq + xq]
- pxor m0, m4
- pxor m1, m4
- pcmpgt%2 m0, m1
+ pminu%2 m0, m1
+ pcmpeq%2 m0, m1
PBLENDVB m3, m2, m0
movu [outq + xq], m3
add xq, mmsize
@@ -82,11 +75,11 @@ RET
%endmacro
INIT_XMM sse4
-THRESHOLD 8, b, pb_128
-THRESHOLD 16, w, pb_128_0
+THRESHOLD 8, b
+THRESHOLD 16, w
%if HAVE_AVX2_EXTERNAL
INIT_YMM avx2
-THRESHOLD 8, b, pb_128
-THRESHOLD 16, w, pb_128_0
+THRESHOLD 8, b
+THRESHOLD 16, w
%endif