static void merge__frame(filter *filt, const y4m2_parameters *parms,
y4m2_frame *frame) {
merge__work *wrk = filt->ctx;
unsigned frames = model_get_int(&filt->config, 10, "$.options.frames");
if (!wrk->avg)
wrk->avg = jd_alloc(frame->i.size * sizeof(uint32_t));
merge__add(wrk->avg, frame);
if (++wrk->phase == frames) {
merge__scale(frame, wrk->avg, frames);
y4m2_emit_frame(filt->out, parms, frame);
memset(wrk->avg, 0, frame->i.size * sizeof(uint32_t));
wrk->phase = 0;
}
}
static void callback(y4m2_reason reason, const y4m2_parameters *parms,
y4m2_frame *frame, void *ctx) {
output_ctx *oc = (output_ctx *)ctx;
switch (reason) {
case Y4M2_START:
if (!y4m2_equal_parms(oc->parms, parms)) {
y4m2_free_parms(oc->parms);
oc->parms = y4m2_clone_parms(parms);
y4m2_emit_start(oc->out, parms);
}
break;
case Y4M2_FRAME:
y4m2_emit_frame(oc->out, parms, frame);
break;
case Y4M2_END:
y4m2_emit_end(oc->out);
break;
}
}
static void callback(y4m2_reason reason, const y4m2_parameters *parms,
y4m2_frame *frame, void *ctx) {
output_ctx *oc = (output_ctx *)ctx;
y4m2_parameters *merged = NULL;
switch (reason) {
case Y4M2_START:
merged = merge_parms(oc, parms);
y4m2_emit_start(oc->out, merged);
break;
case Y4M2_FRAME:
merged = merge_parms(oc, parms);
y4m2_emit_frame(oc->out, merged, frame);
break;
case Y4M2_END:
y4m2_emit_end(oc->out);
break;
}
y4m2_free_parms(merged);
}
static void peak__frame(filter *filt, const y4m2_parameters *parms,
y4m2_frame *frame) {
peak__work *wrk = filt->ctx;
if (!wrk->acc) {
wrk->acc = jd_alloc(frame->i.size * sizeof(double));
for (unsigned p = 0; p < Y4M2_N_PLANE; p++)
wrk->scale[p] = 1;
}
uint8_t *fp = frame->buf;
double *ap = wrk->acc;
double *sp = wrk->scale;
for (unsigned p = 0; p < Y4M2_N_PLANE; p++) {
if (model_get_int(&filt->config, 0, "$.options.%s.disabled",
plane_key[p])) {
ap += frame->i.plane[p].size;
fp += frame->i.plane[p].size;
sp++;
} else {
double decay =
model_get_real(&filt->config, 0, "$.options.%s.decay", plane_key[p]);
double scale = *sp;
for (unsigned i = 0; i < frame->i.plane[p].size; i++) {
double sample = *fp;
double next = (*ap = *ap * decay + sample) / scale;
ap++;
*fp++ = (uint8_t)(sample > next ? sample : next);
}
*sp++ = scale * decay + 1;
}
}
y4m2_emit_frame(filt->out, parms, frame);
}
static void filter__callback(y4m2_reason reason, const y4m2_parameters *parms,
y4m2_frame *frame, void *ctx) {
filter *filt = (filter *)ctx;
switch (reason) {
case Y4M2_START:
if (filt->start)
filt->start(filt, parms);
else
y4m2_emit_start(filt->out, parms);
break;
case Y4M2_FRAME:
if (!filt->frame || model_get_int(&filt->config, 0, "$.disabled"))
y4m2_emit_frame(filt->out, parms, frame);
else
filt->frame(filt, parms, frame);
break;
case Y4M2_END:
if (filt->end)
filt->end(filt);
else
y4m2_emit_end(filt->out);
break;
}
}
