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vdpau: allocate surfaces by age 

Whether this helps is probably questionable and depends on the GPU. But
the vaapi code does it too.
This commit is contained in:
wm4 2014-08-11 14:03:53 +02:00
parent ef9b399020
commit 33a8e2a9ad
2 changed files with 11 additions and 1 deletions
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10
video/vdpau.c
View File

@ -179,6 +179,7 @@ static struct mp_image *create_ref(struct mp_vdpau_ctx *ctx, int index)
struct surface_entry *e = &ctx->video_surfaces[index];
assert(!e->in_use);
e->in_use = true;
e->age = ctx->age_counter++;
struct surface_ref *ref = talloc_ptrtype(NULL, ref);
*ref = (struct surface_ref){ctx, index};
struct mp_image *res =
@ -237,11 +238,18 @@ static struct mp_image *mp_vdpau_get_surface(struct mp_vdpau_ctx *ctx,
assert(e->chroma == chroma);
assert(e->rgb_format == rgb_format);
assert(e->rgb == rgb);
if (surface_index >= 0) {
struct surface_entry *other = &ctx->video_surfaces[surface_index];
if (other->age < e->age)
continue;
}
surface_index = n;
goto done;
}
}
if (surface_index >= 0)
goto done;
// Allocate new surface
for (int n = 0; n < MAX_VIDEO_SURFACES; n++) {
struct surface_entry *e = &ctx->video_surfaces[n];

2
video/vdpau.h
View File

@ -56,6 +56,7 @@ struct mp_vdpau_ctx {
// Surface pool
pthread_mutex_t pool_lock;
int64_t age_counter;
struct surface_entry {
VdpVideoSurface surface;
VdpOutputSurface osurface;
@ -65,6 +66,7 @@ struct mp_vdpau_ctx {
VdpChromaType chroma;
bool rgb;
bool in_use;
int64_t age;
} video_surfaces[MAX_VIDEO_SURFACES];
};