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gst-libs/gst/video/video.c: Fix gst_video_format_parse_caps() for RGB caps with alpha channel (#522635).

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Original commit message from CVS:
* gst-libs/gst/video/video.c: (gst_video_format_parse_caps),
(gst_video_format_from_rgba32_masks):
Fix gst_video_format_parse_caps() for RGB caps with alpha channel
(#522635).
* tests/check/libs/video.c: (test_parse_caps_rgb), (video_suite):
Add unit test for the RGB caps parsing and creation, checking for
internal consistency of the new API and consistency of the API with
the old GST_VIDEO_CAPS_* defines.
This commit is contained in:
Tim-Philipp Müller 2008-03-17 10:32:28 +00:00
parent 66935a9872
commit a0de863603
3 changed files with 72 additions and 3 deletions
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12
ChangeLog
View file

@ -1,3 +1,15 @@
2008-03-17 Tim-Philipp Müller <tim at centricular dot net>
* gst-libs/gst/video/video.c: (gst_video_format_parse_caps),
(gst_video_format_from_rgba32_masks):
Fix gst_video_format_parse_caps() for RGB caps with alpha channel
(#522635).
* tests/check/libs/video.c: (test_parse_caps_rgb), (video_suite):
Add unit test for the RGB caps parsing and creation, checking for
internal consistency of the new API and consistency of the API with
the old GST_VIDEO_CAPS_* defines.
2008-03-14 David Schleef <ds@schleef.org>
* gst/videotestsrc/videotestsrc.c: Oops, revert last change

6
gst-libs/gst/video/video.c
View file

@ -256,7 +256,7 @@ gst_video_format_parse_caps (GstCaps * caps, GstVideoFormat * format,
if (*format == GST_VIDEO_FORMAT_UNKNOWN) {
ok = FALSE;
}
} else if (depth == 24 && bpp == 32 && endianness == G_BIG_ENDIAN &&
} else if (depth == 32 && bpp == 32 && endianness == G_BIG_ENDIAN &&
have_alpha) {
*format = gst_video_format_from_rgba32_masks (red_mask, green_mask,
blue_mask, alpha_mask);
@ -574,11 +574,11 @@ gst_video_format_from_rgba32_masks (int red_mask, int green_mask, int blue_mask,
return GST_VIDEO_FORMAT_BGRA;
}
if (red_mask == 0x00ff0000 && green_mask == 0x0000ff00 &&
blue_mask == 0x0000ff00 && alpha_mask == 0xff000000) {
blue_mask == 0x000000ff && alpha_mask == 0xff000000) {
return GST_VIDEO_FORMAT_ARGB;
}
if (red_mask == 0x000000ff && green_mask == 0x0000ff00 &&
blue_mask == 0xff000000 && alpha_mask == 0xff000000) {
blue_mask == 0x00ff0000 && alpha_mask == 0xff000000) {
return GST_VIDEO_FORMAT_ABGR;
}

57
tests/check/libs/video.c
View file

@ -448,6 +448,62 @@ GST_START_TEST (test_dar_calc)
GST_END_TEST;
GST_START_TEST (test_parse_caps_rgb)
{
struct
{
const gchar *tmpl_caps_string;
GstVideoFormat fmt;
} formats[] = {
/* 24 bit */
{
GST_VIDEO_CAPS_RGB, GST_VIDEO_FORMAT_RGB}, {
GST_VIDEO_CAPS_BGR, GST_VIDEO_FORMAT_BGR},
/* 32 bit (no alpha) */
{
GST_VIDEO_CAPS_RGBx, GST_VIDEO_FORMAT_RGBx}, {
GST_VIDEO_CAPS_xRGB, GST_VIDEO_FORMAT_xRGB}, {
GST_VIDEO_CAPS_BGRx, GST_VIDEO_FORMAT_BGRx}, {
GST_VIDEO_CAPS_xBGR, GST_VIDEO_FORMAT_xBGR},
/* 32 bit (with alpha) */
{
GST_VIDEO_CAPS_RGBA, GST_VIDEO_FORMAT_RGBA}, {
GST_VIDEO_CAPS_ARGB, GST_VIDEO_FORMAT_ARGB}, {
GST_VIDEO_CAPS_BGRA, GST_VIDEO_FORMAT_BGRA}, {
GST_VIDEO_CAPS_ABGR, GST_VIDEO_FORMAT_ABGR}
};
gint i;
for (i = 0; i < G_N_ELEMENTS (formats); ++i) {
GstVideoFormat fmt = GST_VIDEO_FORMAT_UNKNOWN;
GstCaps *caps, *caps2;
int w = -1, h = -1;
caps = gst_caps_from_string (formats[i].tmpl_caps_string);
gst_caps_set_simple (caps, "width", G_TYPE_INT, 2 * i, "height",
G_TYPE_INT, i, "framerate", GST_TYPE_FRACTION, 15, 1,
"pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1, NULL);
g_assert (gst_caps_is_fixed (caps));
GST_DEBUG ("testing caps: %" GST_PTR_FORMAT, caps);
fail_unless (gst_video_format_parse_caps (caps, &fmt, &w, &h));
fail_unless_equals_int (fmt, formats[i].fmt);
fail_unless_equals_int (w, 2 * i);
fail_unless_equals_int (h, i);
/* make sure they're serialised back correctly */
caps2 = gst_video_format_new_caps (fmt, w, h, 15, 1, 1, 1);
fail_unless (caps != NULL);
fail_unless (gst_caps_is_equal (caps, caps2));
gst_caps_unref (caps);
gst_caps_unref (caps2);
}
}
GST_END_TEST;
static Suite *
video_suite (void)
{
@ -457,6 +513,7 @@ video_suite (void)
suite_add_tcase (s, tc_chain);
tcase_add_test (tc_chain, test_video_formats);
tcase_add_test (tc_chain, test_dar_calc);
tcase_add_test (tc_chain, test_parse_caps_rgb);
return s;
}