frodovdr/vdr-plugin-softhddevice
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VDPAU: Add primitive software scaler to grab image

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This commit is contained in:
Johns 2012-01-23 20:04:15 +01:00
parent 993d831190
commit 5f43803236
4 changed files with 64 additions and 2 deletions
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1
ChangeLog
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@ -1,6 +1,7 @@
User johns
Date:
VDPAU: Add very primitive software scaler for grab image.
VA-API: Add auto-crop support.
Suspend can close/open X11 window, connection and audio device.

3
Todo
View File

@ -45,6 +45,9 @@ libva:
can associate ony displayed part of osd
ready(not intel checked) auto crop for va-api
grab image for va-api
still many:
[drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
[drm:i915_wait_request] *ERROR* i915_wait_request returns -11 ...
libva: branch vaapi-ext
add support for vaapi-ext

3
softhddev.c
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@ -830,8 +830,7 @@ uint8_t *GrabImage(int *size, int jpeg, int quality, int width, int height)
return NULL;
}
if (width != -1 && height != -1) {
Error(_("softhddev: scaling not supported\n"));
return NULL;
Warning(_("softhddev: scaling unsupported\n"));
}
return VideoGrab(size, &width, &height);
}

59
video.c
View File

@ -7768,8 +7768,66 @@ uint8_t *VideoGrab(int *size, int *width, int *height)
char buf[64];
int i;
int n;
int scale_width;
int scale_height;
int x;
int y;
double src_x;
double src_y;
double scale_x;
double scale_y;
scale_width = *width;
scale_height = *height;
data = VdpauGrabOutputSurface(size, width, height);
#if 1
if (scale_width <= 0) {
scale_width = *width;
}
if (scale_height <= 0) {
scale_height = *height;
}
n = snprintf(buf, sizeof(buf), "P6\n%d\n%d\n255\n", scale_width,
scale_height);
rgb = malloc(scale_width * scale_height * 3 + n);
if (!rgb) {
Error(_("video: out of memory\n"));
free(data);
return NULL;
}
*size = scale_width * scale_height * 3 + n;
memcpy(rgb, buf, n); // header
scale_x = (double)*width / scale_width;
scale_y = (double)*height / scale_height;
src_y = 0.0;
for (y = 0; y < scale_height; y++) {
int o;
src_x = 0.0;
o = (int)src_y **width;
for (x = 0; x < scale_width; x++) {
i = 4 * (o + (int)src_x);
rgb[n + (x + y * scale_width) * 3 + 0] = data[i + 2];
rgb[n + (x + y * scale_width) * 3 + 1] = data[i + 1];
rgb[n + (x + y * scale_width) * 3 + 2] = data[i + 0];
src_x += scale_x;
}
src_y += scale_y;
}
*width = scale_width;
*height = scale_height;
free(data);
#else
n = snprintf(buf, sizeof(buf), "P6\n%d\n%d\n255\n", *width, *height);
rgb = malloc(*width * *height * 3 + n);
if (!rgb) {
@ -7787,6 +7845,7 @@ uint8_t *VideoGrab(int *size, int *width, int *height)
free(data);
*size = *width * *height * 3 + n;
#endif
return rgb;
}