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filter: Better SPA_CHOICE_Step support

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Allow comparing single values with step-ranges. An example where this
can be useful is when trying to encode a screencast with a hardware
encoder.
This commit is contained in:
Robert Mader 2023-01-05 21:17:33 +01:00 • committed by Wim Taymans
parent d4db7e1d9b
commit 0f4fcd63ac
1 changed files with 64 additions and 5 deletions
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69
spa/include/spa/pod/filter.h
View file

@ -123,6 +123,27 @@ static inline int spa_pod_filter_flags_value(struct spa_pod_builder *b,
return 1;
}
static inline int spa_pod_filter_is_step_of(uint32_t type, const void *r1,
const void *r2, uint32_t size)
{
switch (type) {
case SPA_TYPE_Int:
return *(int32_t *) r1 % *(int32_t *) r2 == 0;
case SPA_TYPE_Long:
return *(int64_t *) r1 % *(int64_t *) r2 == 0;
case SPA_TYPE_Rectangle:
{
const struct spa_rectangle *rec1 = (struct spa_rectangle *) r1,
*rec2 = (struct spa_rectangle *) r2;
return (rec1->width % rec2->width == 0 &&
rec1->height % rec2->height == 0);
}
default:
return -ENOTSUP;
}
return 0;
}
static inline int
spa_pod_filter_prop(struct spa_pod_builder *b,
@ -209,7 +230,26 @@ spa_pod_filter_prop(struct spa_pod_builder *b,
if ((p1c == SPA_CHOICE_None && p2c == SPA_CHOICE_Step) ||
(p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Step)) {
return -ENOTSUP;
int n_copied = 0;
for (j = 0, a1 = alt1, a2 = alt2; j < nalt1; j++, a1 = SPA_PTROFF(a1,size,void)) {
int res;
if (spa_pod_compare_value(type, a1, a2, size) < 0)
continue;
if (spa_pod_compare_value(type, a1, SPA_PTROFF(a2,size,void), size) > 0)
continue;
res = spa_pod_filter_is_step_of(type, a1, SPA_PTROFF(a2,size*2,void), size);
if (res == 0)
continue;
if (res == -ENOTSUP)
return -EINVAL;
spa_pod_builder_raw(b, a1, size);
n_copied++;
}
if (n_copied == 0)
return -EINVAL;
nc->body.type = SPA_CHOICE_Enum;
}
if ((p1c == SPA_CHOICE_Range && p2c == SPA_CHOICE_None) ||
@ -263,10 +303,29 @@ spa_pod_filter_prop(struct spa_pod_builder *b,
if (p1c == SPA_CHOICE_Enum && p2c == SPA_CHOICE_Flags)
return -ENOTSUP;
if (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_None)
return -ENOTSUP;
if (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Enum)
return -ENOTSUP;
if ((p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_None) ||
(p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Enum)) {
int n_copied = 0;
for (j = 0, a1 = alt1, a2 = alt2; j < nalt2; j++, a2 = SPA_PTROFF(a1,size,void)) {
int res;
if (spa_pod_compare_value(type, a2, a1, size) < 0)
continue;
if (spa_pod_compare_value(type, a2, SPA_PTROFF(a1,size,void), size) > 0)
continue;
res = spa_pod_filter_is_step_of(type, a2, SPA_PTROFF(a1,size*2,void), size);
if (res == 0)
continue;
if (res == -ENOTSUP)
return -EINVAL;
spa_pod_builder_raw(b, a2, size);
n_copied++;
}
if (n_copied == 0)
return -EINVAL;
nc->body.type = SPA_CHOICE_Enum;
}
if (p1c == SPA_CHOICE_Step && p2c == SPA_CHOICE_Flags)
return -ENOTSUP;