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videooverlaycomposition: allow more formats for rectangle pixel data

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... adding AYUV, and allowing for ARGB or RGBA endian-independent.
This commit is contained in:
Mark Nauwelaerts 2012-08-30 12:09:27 +02:00
parent 7b89dddede
commit 89228e911c
3 changed files with 167 additions and 88 deletions
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174
gst-libs/gst/video/video-overlay-composition.c
View file

@ -637,7 +637,7 @@ gst_video_overlay_rectangle_is_same_alpha_type (GstVideoOverlayFormatFlags
/**
* gst_video_overlay_rectangle_new_argb:
* gst_video_overlay_rectangle_new_raw:
* @pixels: (transfer none): a #GstBuffer pointing to the pixel memory
* @render_x: the X co-ordinate on the video where the top-left corner of this
* overlay rectangle should be rendered to
@ -662,31 +662,28 @@ gst_video_overlay_rectangle_is_same_alpha_type (GstVideoOverlayFormatFlags
* gst_video_overlay_rectangle_unref() when no longer needed.
*/
GstVideoOverlayRectangle *
gst_video_overlay_rectangle_new_argb (GstBuffer * pixels,
gst_video_overlay_rectangle_new_raw (GstBuffer * pixels,
gint render_x, gint render_y, guint render_width, guint render_height,
GstVideoOverlayFormatFlags flags)
{
GstVideoOverlayRectangle *rect;
GstVideoFormat format;
GstVideoMeta *vmeta;
GstVideoFormat format;
guint width, height;
g_return_val_if_fail (GST_IS_BUFFER (pixels), NULL);
g_return_val_if_fail (render_height > 0 && render_width > 0, NULL);
g_return_val_if_fail (gst_video_overlay_rectangle_check_flags (flags), NULL);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
format = GST_VIDEO_FORMAT_BGRA;
#else
format = GST_VIDEO_FORMAT_ARGB;
#endif
/* buffer must have video meta with some expected settings */
vmeta = gst_buffer_get_video_meta (pixels);
g_return_val_if_fail (vmeta, NULL);
g_return_val_if_fail (vmeta->format == format, NULL);
g_return_val_if_fail (vmeta->format ==
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB ||
vmeta->format == GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_YUV, NULL);
g_return_val_if_fail (vmeta->flags == GST_VIDEO_FRAME_FLAG_NONE, NULL);
format = vmeta->format;
width = vmeta->width;
height = vmeta->height;
@ -797,21 +794,9 @@ gst_video_overlay_rectangle_set_render_rectangle (GstVideoOverlayRectangle *
rectangle->render_height = render_height;
}
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
# define ARGB_A 3
# define ARGB_R 2
# define ARGB_G 1
# define ARGB_B 0
#else
# define ARGB_A 0
# define ARGB_R 1
# define ARGB_G 2
# define ARGB_B 3
#endif
/* FIXME: orc-ify */
static void
gst_video_overlay_rectangle_premultiply (GstVideoFrame * frame)
gst_video_overlay_rectangle_premultiply_0 (GstVideoFrame * frame)
{
int i, j;
for (j = 0; j < GST_VIDEO_FRAME_HEIGHT (frame); ++j) {
@ -820,18 +805,17 @@ gst_video_overlay_rectangle_premultiply (GstVideoFrame * frame)
line = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
line += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) * j;
for (i = 0; i < GST_VIDEO_FRAME_WIDTH (frame); ++i) {
int a = line[ARGB_A];
line[ARGB_R] = line[ARGB_R] * a / 255;
line[ARGB_G] = line[ARGB_G] * a / 255;
line[ARGB_B] = line[ARGB_B] * a / 255;
int a = line[0];
line[1] = line[1] * a / 255;
line[2] = line[2] * a / 255;
line[3] = line[3] * a / 255;
line += 4;
}
}
}
/* FIXME: orc-ify */
static void
gst_video_overlay_rectangle_unpremultiply (GstVideoFrame * frame)
gst_video_overlay_rectangle_premultiply_3 (GstVideoFrame * frame)
{
int i, j;
for (j = 0; j < GST_VIDEO_FRAME_HEIGHT (frame); ++j) {
@ -840,24 +824,106 @@ gst_video_overlay_rectangle_unpremultiply (GstVideoFrame * frame)
line = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
line += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) * j;
for (i = 0; i < GST_VIDEO_FRAME_WIDTH (frame); ++i) {
int a = line[ARGB_A];
int a = line[3];
line[0] = line[0] * a / 255;
line[1] = line[1] * a / 255;
line[2] = line[2] * a / 255;
line += 4;
}
}
}
static void
gst_video_overlay_rectangle_premultiply (GstVideoFrame * frame)
{
gint alpha_offset;
alpha_offset = GST_VIDEO_FRAME_COMP_POFFSET (frame, 3);
switch (alpha_offset) {
case 0:
gst_video_overlay_rectangle_premultiply_0 (frame);
break;
case 3:
gst_video_overlay_rectangle_premultiply_3 (frame);
break;
default:
g_assert_not_reached ();
break;
}
}
/* FIXME: orc-ify */
static void
gst_video_overlay_rectangle_unpremultiply_0 (GstVideoFrame * frame)
{
int i, j;
for (j = 0; j < GST_VIDEO_FRAME_HEIGHT (frame); ++j) {
guint8 *line;
line = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
line += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) * j;
for (i = 0; i < GST_VIDEO_FRAME_WIDTH (frame); ++i) {
int a = line[0];
if (a) {
line[ARGB_R] = MIN ((line[ARGB_R] * 255 + a / 2) / a, 255);
line[ARGB_G] = MIN ((line[ARGB_G] * 255 + a / 2) / a, 255);
line[ARGB_B] = MIN ((line[ARGB_B] * 255 + a / 2) / a, 255);
line[1] = MIN ((line[1] * 255 + a / 2) / a, 255);
line[2] = MIN ((line[2] * 255 + a / 2) / a, 255);
line[3] = MIN ((line[3] * 255 + a / 2) / a, 255);
}
line += 4;
}
}
}
static void
gst_video_overlay_rectangle_unpremultiply_3 (GstVideoFrame * frame)
{
int i, j;
for (j = 0; j < GST_VIDEO_FRAME_HEIGHT (frame); ++j) {
guint8 *line;
line = GST_VIDEO_FRAME_PLANE_DATA (frame, 0);
line += GST_VIDEO_FRAME_PLANE_STRIDE (frame, 0) * j;
for (i = 0; i < GST_VIDEO_FRAME_WIDTH (frame); ++i) {
int a = line[3];
if (a) {
line[0] = MIN ((line[0] * 255 + a / 2) / a, 255);
line[1] = MIN ((line[1] * 255 + a / 2) / a, 255);
line[2] = MIN ((line[2] * 255 + a / 2) / a, 255);
}
line += 4;
}
}
}
static void
gst_video_overlay_rectangle_unpremultiply (GstVideoFrame * frame)
{
gint alpha_offset;
alpha_offset = GST_VIDEO_FRAME_COMP_POFFSET (frame, 3);
switch (alpha_offset) {
case 0:
gst_video_overlay_rectangle_unpremultiply_0 (frame);
break;
case 3:
gst_video_overlay_rectangle_unpremultiply_3 (frame);
break;
default:
g_assert_not_reached ();
break;
}
}
static void
gst_video_overlay_rectangle_extract_alpha (GstVideoOverlayRectangle * rect)
{
guint8 *src, *dst;
GstVideoFrame frame;
gint i, j, w, h, stride;
gint i, j, w, h, stride, alpha_offset;
alpha_offset = GST_VIDEO_INFO_COMP_POFFSET (&rect->info, 3);
g_return_if_fail (alpha_offset == 0 || alpha_offset == 3);
gst_video_frame_map (&frame, &rect->info, rect->pixels, GST_MAP_READ);
src = GST_VIDEO_FRAME_PLANE_DATA (&frame, 0);
@ -871,7 +937,7 @@ gst_video_overlay_rectangle_extract_alpha (GstVideoOverlayRectangle * rect)
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
*dst = src[ARGB_A];
*dst = src[alpha_offset];
dst++;
src += 4;
}
@ -888,6 +954,7 @@ gst_video_overlay_rectangle_apply_global_alpha (GstVideoOverlayRectangle * rect,
guint8 *src, *dst;
GstVideoFrame frame;
gint i, j, w, h, stride;
gint argb_a, argb_r, argb_g, argb_b;
g_assert (!(rect->applied_global_alpha != 1.0
&& rect->initial_alpha == NULL));
@ -907,22 +974,27 @@ gst_video_overlay_rectangle_apply_global_alpha (GstVideoOverlayRectangle * rect,
h = GST_VIDEO_INFO_HEIGHT (&rect->info);
stride = GST_VIDEO_INFO_PLANE_STRIDE (&rect->info, 0);
argb_a = GST_VIDEO_INFO_COMP_POFFSET (&rect->info, 3);
argb_r = (argb_a + 1) % 4;
argb_g = (argb_a + 2) % 4;
argb_b = (argb_a + 3) % 4;
for (i = 0; i < h; i++) {
for (j = 0; j < w; j++) {
guint8 na = (guint8) (*src * global_alpha);
if (! !(rect->flags & GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA)) {
dst[ARGB_R] =
(guint8) ((double) (dst[ARGB_R] * 255) / (double) dst[ARGB_A]) *
dst[argb_r] =
(guint8) ((double) (dst[argb_r] * 255) / (double) dst[argb_a]) *
na / 255;
dst[ARGB_G] =
(guint8) ((double) (dst[ARGB_G] * 255) / (double) dst[ARGB_A]) *
dst[argb_g] =
(guint8) ((double) (dst[argb_g] * 255) / (double) dst[argb_a]) *
na / 255;
dst[ARGB_B] =
(guint8) ((double) (dst[ARGB_B] * 255) / (double) dst[ARGB_A]) *
dst[argb_b] =
(guint8) ((double) (dst[argb_b] * 255) / (double) dst[argb_a]) *
na / 255;
}
dst[ARGB_A] = na;
dst[argb_a] = na;
src++;
dst += 4;
}
@ -934,7 +1006,7 @@ gst_video_overlay_rectangle_apply_global_alpha (GstVideoOverlayRectangle * rect,
}
static GstBuffer *
gst_video_overlay_rectangle_get_pixels_argb_internal (GstVideoOverlayRectangle *
gst_video_overlay_rectangle_get_pixels_raw_internal (GstVideoOverlayRectangle *
rectangle, GstVideoOverlayFormatFlags flags, gboolean unscaled)
{
GstVideoOverlayFormatFlags new_flags;
@ -1030,7 +1102,7 @@ gst_video_overlay_rectangle_get_pixels_argb_internal (GstVideoOverlayRectangle *
}
gst_video_frame_unmap (&frame);
scaled_rect = gst_video_overlay_rectangle_new_argb (buf,
scaled_rect = gst_video_overlay_rectangle_new_raw (buf,
0, 0, wanted_width, wanted_height, new_flags);
if (rectangle->global_alpha != 1.0)
gst_video_overlay_rectangle_set_global_alpha (scaled_rect,
@ -1061,7 +1133,7 @@ done:
/**
* gst_video_overlay_rectangle_get_pixels_argb:
* gst_video_overlay_rectangle_get_pixels_raw:
* @rectangle: a #GstVideoOverlayRectangle
* @flags: flags
* If a global_alpha value != 1 is set for the rectangle, the caller
@ -1076,15 +1148,15 @@ done:
* with gst_buffer_ref() if needed.
*/
GstBuffer *
gst_video_overlay_rectangle_get_pixels_argb (GstVideoOverlayRectangle *
gst_video_overlay_rectangle_get_pixels_raw (GstVideoOverlayRectangle *
rectangle, GstVideoOverlayFormatFlags flags)
{
return gst_video_overlay_rectangle_get_pixels_argb_internal (rectangle,
return gst_video_overlay_rectangle_get_pixels_raw_internal (rectangle,
flags, FALSE);
}
/**
* gst_video_overlay_rectangle_get_pixels_unscaled_argb:
* gst_video_overlay_rectangle_get_pixels_unscaled_raw:
* @rectangle: a #GstVideoOverlayRectangle
* @flags: flags.
* If a global_alpha value != 1 is set for the rectangle, the caller
@ -1102,12 +1174,12 @@ gst_video_overlay_rectangle_get_pixels_argb (GstVideoOverlayRectangle *
* should obtain a reference of her own with gst_buffer_ref() if needed.
*/
GstBuffer *
gst_video_overlay_rectangle_get_pixels_unscaled_argb (GstVideoOverlayRectangle *
gst_video_overlay_rectangle_get_pixels_unscaled_raw (GstVideoOverlayRectangle *
rectangle, GstVideoOverlayFormatFlags flags)
{
g_return_val_if_fail (GST_IS_VIDEO_OVERLAY_RECTANGLE (rectangle), NULL);
return gst_video_overlay_rectangle_get_pixels_argb_internal (rectangle,
return gst_video_overlay_rectangle_get_pixels_raw_internal (rectangle,
flags, TRUE);
}
@ -1202,7 +1274,7 @@ gst_video_overlay_rectangle_copy (GstVideoOverlayRectangle * rectangle)
g_return_val_if_fail (GST_IS_VIDEO_OVERLAY_RECTANGLE (rectangle), NULL);
copy = gst_video_overlay_rectangle_new_argb (rectangle->pixels,
copy = gst_video_overlay_rectangle_new_raw (rectangle->pixels,
rectangle->x, rectangle->y,
rectangle->render_width, rectangle->render_height, rectangle->flags);
if (rectangle->global_alpha != 1)

13
gst-libs/gst/video/video-overlay-composition.h
View file

@ -112,9 +112,16 @@ typedef enum {
#define GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB GST_VIDEO_FORMAT_ARGB
#endif
/**
* GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_YUV:
*
* Supported YUV overlay video format.
*/
#define GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_YUV GST_VIDEO_FORMAT_AYUV
GType gst_video_overlay_rectangle_get_type (void);
GstVideoOverlayRectangle * gst_video_overlay_rectangle_new_argb (GstBuffer * pixels,
GstVideoOverlayRectangle * gst_video_overlay_rectangle_new_raw (GstBuffer * pixels,
gint render_x, gint render_y,
guint render_width, guint render_height,
GstVideoOverlayFormatFlags flags);
@ -135,10 +142,10 @@ gboolean gst_video_overlay_rectangle_get_render_rectangle
guint * render_width,
guint * render_height);
GstBuffer * gst_video_overlay_rectangle_get_pixels_argb (GstVideoOverlayRectangle * rectangle,
GstBuffer * gst_video_overlay_rectangle_get_pixels_raw (GstVideoOverlayRectangle * rectangle,
GstVideoOverlayFormatFlags flags);
GstBuffer * gst_video_overlay_rectangle_get_pixels_unscaled_argb (GstVideoOverlayRectangle * rectangle,
GstBuffer * gst_video_overlay_rectangle_get_pixels_unscaled_raw (GstVideoOverlayRectangle * rectangle,
GstVideoOverlayFormatFlags flags);
GstVideoOverlayFormatFlags gst_video_overlay_rectangle_get_flags (GstVideoOverlayRectangle * rectangle);

68
tests/check/libs/video.c
View file

@ -883,7 +883,7 @@ GST_START_TEST (test_overlay_composition)
gst_buffer_add_video_meta (pix1, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB, 200, 50);
rect1 = gst_video_overlay_rectangle_new_argb (pix1,
rect1 = gst_video_overlay_rectangle_new_raw (pix1,
600, 50, 300, 50, GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
gst_buffer_unref (pix1);
@ -943,7 +943,7 @@ GST_START_TEST (test_overlay_composition)
fail_unless_equals_int (h, 51);
/* get scaled pixbuf and touch last byte */
pix1 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix1 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
stride = 4 * w;
fail_unless (gst_buffer_get_size (pix1) > ((h - 1) * stride + (w * 4) - 1),
@ -959,7 +959,7 @@ GST_START_TEST (test_overlay_composition)
fail_unless_equals_int (h, 50);
/* get scaled pixbuf and touch last byte */
pix2 = gst_video_overlay_rectangle_get_pixels_argb (rect2,
pix2 = gst_video_overlay_rectangle_get_pixels_raw (rect2,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
stride = 4 * w;
fail_unless (gst_buffer_get_size (pix2) > ((h - 1) * stride + (w * 4) - 1),
@ -969,14 +969,14 @@ GST_START_TEST (test_overlay_composition)
fail_unless_equals_int (val, 0);
/* get scaled pixbuf again, should be the same buffer as before (caching) */
pix1 = gst_video_overlay_rectangle_get_pixels_argb (rect2,
pix1 = gst_video_overlay_rectangle_get_pixels_raw (rect2,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix1 == pix2);
/* now compare the original unscaled ones */
pix1 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix1 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect2,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect2,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
vmeta = gst_buffer_get_video_meta (pix2);
@ -1047,27 +1047,27 @@ GST_START_TEST (test_overlay_composition_premultiplied_alpha)
gst_buffer_add_video_meta (pix1, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB, 200, 50);
rect1 = gst_video_overlay_rectangle_new_argb (pix1,
rect1 = gst_video_overlay_rectangle_new_raw (pix1,
600, 50, 300, 50, GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
gst_buffer_unref (pix1);
/* same flags, unscaled, should be the same buffer */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix1 == pix2);
/* same flags, but scaled */
pix3 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix3 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_if (pix3 == pix1 || pix3 == pix2);
/* same again, should hopefully get the same (cached) buffer as before */
pix4 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix4 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix4 == pix3);
/* just to update the vars */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
vmeta = gst_buffer_get_video_meta (pix2);
@ -1076,7 +1076,7 @@ GST_START_TEST (test_overlay_composition_premultiplied_alpha)
h = vmeta->height;
/* now, let's try to get premultiplied alpha from the unpremultiplied input */
pix5 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix5 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_if (pix5 == pix1 || pix5 == pix2 || pix5 == pix3);
vmeta = gst_buffer_get_video_meta (pix5);
@ -1108,17 +1108,17 @@ GST_START_TEST (test_overlay_composition_premultiplied_alpha)
/* same again, now we should be getting back the same buffer as before,
* as it should have been cached */
pix6 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix6 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_unless (pix6 == pix5);
/* just to update the stride var */
pix3 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix3 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix3 == pix4);
/* now try to get scaled premultiplied alpha from unpremultiplied input */
pix7 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix7 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_if (pix7 == pix1 || pix7 == pix2 || pix7 == pix3 || pix7 == pix5);
@ -1142,15 +1142,15 @@ GST_START_TEST (test_overlay_composition_premultiplied_alpha)
gst_buffer_unmap (pix7, &map);
/* and the same again, it should be cached now */
pix8 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix8 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_unless (pix8 == pix7);
/* make sure other cached stuff is still there */
pix9 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix9 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix9 == pix3);
pix10 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix10 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_unless (pix10 == pix5);
@ -1176,12 +1176,12 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_add_video_meta (pix1, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB, 200, 50);
rect1 = gst_video_overlay_rectangle_new_argb (pix1,
rect1 = gst_video_overlay_rectangle_new_raw (pix1,
600, 50, 300, 50, GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
gst_buffer_unref (pix1);
/* same flags, unscaled, should be the same buffer */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix1 == pix2);
@ -1191,12 +1191,12 @@ GST_START_TEST (test_overlay_composition_global_alpha)
h = vmeta->height;
/* same flags, but scaled */
pix3 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix3 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_if (pix3 == pix1 || pix3 == pix2);
/* get unscaled premultiplied data, new cached rectangle should be created */
pix4 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix4 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_if (pix4 == pix2 || pix4 == pix3);
vmeta = gst_buffer_get_video_meta (pix4);
@ -1227,7 +1227,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix4, &map);
/* now premultiplied and scaled, again a new cached rectangle should be cached */
pix5 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix5 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
fail_if (pix5 == pix2 || pix5 == pix3 || pix5 == pix4);
/* stride and size should be equal to the first scaled rect */
@ -1272,7 +1272,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
fail_unless_equals_int (flags1, GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
/* request unscaled pixel-data, global-alpha not applied */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
/* this should just return the same buffer */
fail_unless (pix2 == pix1);
@ -1295,7 +1295,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix2, &map);
/* unscaled pixel-data, global-alpha applied */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
/* this should be the same buffer with on-the-fly modified alpha-channel */
fail_unless (pix2 == pix1);
@ -1322,7 +1322,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
ga2 = gst_video_overlay_rectangle_get_global_alpha (rect1);
fail_unless_equals_float (ga2, 0.25);
/* and again request unscaled pixel-data, global-alpha applied */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
fail_unless (pix2 == pix1);
/* make sure we got the initial data with adjusted alpha-channel */
@ -1345,7 +1345,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
/* again: unscaled pixel-data, global-alpha not applied,
* this should revert alpha-channel to initial values */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
fail_unless (pix2 == pix1);
/* make sure we got the initial data (input=0x80808080) */
@ -1367,7 +1367,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix2, &map);
/* now scaled, global-alpha not applied */
pix2 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
/* this should just return the rect/buffer, that was cached for these
* scaling dimensions */
@ -1391,7 +1391,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix2, &map);
/* scaled, global-alpha (0.25) applied */
pix2 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_NONE);
/* this should just return the rect/buffer, that was cached for these
* scaling dimensions with modified alpha channel */
@ -1416,7 +1416,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
/* now unscaled premultiplied data, global-alpha not applied,
* is this really a valid use case?*/
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA |
GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
/* this should just return the rect/buffer, that was cached for the
@ -1441,7 +1441,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix2, &map);
/* unscaled premultiplied data, global-alpha (0.25) applied */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
/* this should just return the rect/buffer, that was cached for the
* premultiplied data */
@ -1472,7 +1472,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_video_overlay_rectangle_set_global_alpha (rect1, 0.75);
/* and verify that also premultiplied data is adjusted
* correspondingly (though with increasing rounding errors) */
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_unscaled_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
/* this should just return the rect/buffer, that was cached for the
* premultiplied data */
@ -1500,7 +1500,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
/* now scaled and premultiplied data, global-alpha not applied,
* is this really a valid use case?*/
pix2 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA |
GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA);
/* this should just return the rect/buffer, that was cached for the
@ -1525,7 +1525,7 @@ GST_START_TEST (test_overlay_composition_global_alpha)
gst_buffer_unmap (pix2, &map);
/* scaled and premultiplied data, global-alpha applied */
pix2 = gst_video_overlay_rectangle_get_pixels_argb (rect1,
pix2 = gst_video_overlay_rectangle_get_pixels_raw (rect1,
GST_VIDEO_OVERLAY_FORMAT_FLAG_PREMULTIPLIED_ALPHA);
/* this should just return the rect/buffer, that was cached for the
* first premultiplied+scaled rect*/