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video-color: Add gst_video_colorimetry_is_equal()

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Add a function for comparing the equality of 2 colorimetry
structures.
This commit is contained in:
Jan Schmidt 2015-05-04 02:10:17 +10:00
parent bd40d2e33f
commit 14fafc74a3
3 changed files with 28 additions and 4 deletions
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30
gst-libs/gst/video/video-color.c
View file

@ -70,10 +70,12 @@ gst_video_get_colorimetry (const gchar * s)
return NULL;
}
#define IS_EQUAL(ci,i) (((ci)->color.range == (i)->range) && \
((ci)->color.matrix == (i)->matrix) && \
((ci)->color.transfer == (i)->transfer) && \
((ci)->color.primaries == (i)->primaries))
#define CI_IS_EQUAL(ci,i) (((ci)->range == (i)->range) && \
((ci)->matrix == (i)->matrix) && \
((ci)->transfer == (i)->transfer) && \
((ci)->primaries == (i)->primaries))
#define IS_EQUAL(ci,i) CI_IS_EQUAL(&(ci)->color, (i))
#define IS_UNKNOWN(ci) (IS_EQUAL (&colorimetry[DEFAULT_UNKNOWN], ci))
@ -221,6 +223,26 @@ gst_video_color_range_offsets (GstVideoColorRange range,
GST_DEBUG ("offset: %d %d %d %d", offset[0], offset[1], offset[2], offset[3]);
}
/**
* gst_video_colorimetry_is_equal:
* @cinfo: a #GstVideoColorimetry
* @other: another #GstVideoColorimetry
*
* Compare the 2 colorimetry sets for equality
*
* Returns: #TRUE if @cinfo and @other are equal.
*
* Since: 1.6
*/
gboolean
gst_video_colorimetry_is_equal (const GstVideoColorimetry * cinfo,
const GstVideoColorimetry * other)
{
g_return_val_if_fail (cinfo != NULL, FALSE);
g_return_val_if_fail (other != NULL, FALSE);
return CI_IS_EQUAL (cinfo, other);
}
#define WP_C 0.31006, 0.31616
#define WP_D65 0.31271, 0.32902

1
gst-libs/gst/video/video-color.h
View file

@ -192,6 +192,7 @@ typedef struct {
gboolean gst_video_colorimetry_matches (GstVideoColorimetry *cinfo, const gchar *color);
gboolean gst_video_colorimetry_from_string (GstVideoColorimetry *cinfo, const gchar *color);
gchar * gst_video_colorimetry_to_string (GstVideoColorimetry *cinfo);
gboolean gst_video_colorimetry_is_equal (const GstVideoColorimetry *cinfo, const GstVideoColorimetry *other);
/* compute offset and scale */
void gst_video_color_range_offsets (GstVideoColorRange range,

1
win32/common/libgstvideo.def
View file

@ -82,6 +82,7 @@ EXPORTS
gst_video_color_transfer_decode
gst_video_color_transfer_encode
gst_video_colorimetry_from_string
gst_video_colorimetry_is_equal
gst_video_colorimetry_matches
gst_video_colorimetry_to_string
gst_video_convert_sample