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avfilter/vf_fspp: Pre-reorder threshold table

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Avoids reordering at runtime.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-11-13 11:18:28 +01:00
parent 778ff97efa
commit 0c556a6b09
1 changed files with 13 additions and 25 deletions
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38
libavfilter/vf_fspp.c
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@@ -92,14 +92,16 @@ static const short custom_threshold[64] = {
// values (296) can't be too high
// -it causes too big quant dependence
// or maybe overflow(check), which results in some flashing
71, 296, 295, 237, 71, 40, 38, 19,
245, 193, 185, 121, 102, 73, 53, 27,
158, 129, 141, 107, 97, 73, 50, 26,
102, 116, 109, 98, 82, 66, 45, 23,
71, 94, 95, 81, 70, 56, 38, 20,
56, 77, 74, 66, 56, 44, 30, 15,
38, 53, 50, 45, 38, 30, 21, 11,
20, 27, 26, 23, 20, 15, 11, 5
// reorder coefficients to the order in which columns are processed
#define REORDER(a,b,c,d,e,f,g,h) c, g, a, e, f, d, b, h
REORDER( 71, 296, 295, 237, 71, 40, 38, 19),
REORDER(245, 193, 185, 121, 102, 73, 53, 27),
REORDER(158, 129, 141, 107, 97, 73, 50, 26),
REORDER(102, 116, 109, 98, 82, 66, 45, 23),
REORDER( 71, 94, 95, 81, 70, 56, 38, 20),
REORDER( 56, 77, 74, 66, 56, 44, 30, 15),
REORDER( 38, 53, 50, 45, 38, 30, 21, 11),
REORDER( 20, 27, 26, 23, 20, 15, 11, 5)
};
static void filter(FSPPContext *p, uint8_t *dst, uint8_t *src,
@@ -244,25 +246,11 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
int qp_stride = 0;
int8_t *qp_table = NULL;
int i, bias;
int ret = 0;
int custom_threshold_m[64];
bias = (1 << 4) + fspp->strength;
for (i = 0; i < 64; i++) //FIXME: tune custom_threshold[] and remove this !
custom_threshold_m[i] = (int)(custom_threshold[i] * (bias / 71.0) + 0.5);
for (int i = 0; i < 64; i += 8) {
fspp->threshold_mtx_noq[i + 0] = custom_threshold_m[i + 2];
fspp->threshold_mtx_noq[i + 1] = custom_threshold_m[i + 6];
fspp->threshold_mtx_noq[i + 2] = custom_threshold_m[i + 0];
fspp->threshold_mtx_noq[i + 3] = custom_threshold_m[i + 4];
fspp->threshold_mtx_noq[i + 4] = custom_threshold_m[i + 5];
fspp->threshold_mtx_noq[i + 5] = custom_threshold_m[i + 3];
fspp->threshold_mtx_noq[i + 6] = custom_threshold_m[i + 1];
fspp->threshold_mtx_noq[i + 7] = custom_threshold_m[i + 7];
}
//FIXME: tune custom_threshold[] and remove this !
for (int i = 0, bias = (1 << 4) + fspp->strength; i < 64; ++i)
fspp->threshold_mtx_noq[i] = (int)(custom_threshold[i] * (bias / 71.0) + 0.5);
if (fspp->qp) {
fspp->prev_q = fspp->qp;