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v4l2: Re-add colorimetry field for RGB formats

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This time, check if it's an RGB format and sets the transformation
matrix to identity. The rest of the colorimetry information is
meaningfull and shall be kept.

https://bugzilla.gnome.org/show_bug.cgi?id=759624
This commit is contained in:
Nicolas Dufresne 2016-01-21 17:41:55 -05:00
parent 710ab7f083
commit 0569178ca7
1 changed files with 20 additions and 25 deletions
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45
sys/v4l2/gstv4l2object.c
View file

@ -1304,31 +1304,24 @@ gst_v4l2_object_v4l2fourcc_to_video_format (guint32 fourcc)
}
static gboolean
gst_v4l2_object_v4l2fourcc_is_yuv (guint32 fourcc)
gst_v4l2_object_v4l2fourcc_is_rgb (guint32 fourcc)
{
gboolean ret = FALSE;
switch (fourcc) {
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV12M:
case V4L2_PIX_FMT_NV12MT:
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV21M:
case V4L2_PIX_FMT_YVU410:
case V4L2_PIX_FMT_YUV410:
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YUV420M:
case V4L2_PIX_FMT_YUYV:
case V4L2_PIX_FMT_YVU420:
case V4L2_PIX_FMT_UYVY:
case V4L2_PIX_FMT_YUV411P:
case V4L2_PIX_FMT_YUV422P:
case V4L2_PIX_FMT_YVYU:
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV16M:
case V4L2_PIX_FMT_NV61:
case V4L2_PIX_FMT_NV61M:
case V4L2_PIX_FMT_NV24:
case V4L2_PIX_FMT_XRGB555:
case V4L2_PIX_FMT_RGB555:
case V4L2_PIX_FMT_XRGB555X:
case V4L2_PIX_FMT_RGB555X:
case V4L2_PIX_FMT_RGB565:
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_BGR24:
case V4L2_PIX_FMT_XRGB32:
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_XBGR32:
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_ABGR32:
case V4L2_PIX_FMT_ARGB32:
ret = TRUE;
break;
default:
@ -2134,10 +2127,6 @@ gst_v4l2_object_add_colorspace (GstV4l2Object * v4l2object, GstStructure * s,
GValue colorimetry = G_VALUE_INIT;
GstVideoColorimetry cinfo;
/* Don't expose colorimetry unless this is a YUV format */
if (!gst_v4l2_object_v4l2fourcc_is_yuv (pixelformat))
return;
memset (&fmt, 0, sizeof (fmt));
fmt.type = v4l2object->type;
fmt.fmt.pix.width = width;
@ -2164,6 +2153,12 @@ gst_v4l2_object_add_colorspace (GstV4l2Object * v4l2object, GstStructure * s,
if (gst_v4l2_object_get_colorspace (colorspace, range, matrix, transfer,
&cinfo)) {
/* Set identity matrix for R'G'B' formats to avoid creating
* confusion. This though is cosmetic as it's now properly ignored by
* the video info API and videoconvert. */
if (gst_v4l2_object_v4l2fourcc_is_rgb (pixelformat))
cinfo.matrix = GST_VIDEO_COLOR_MATRIX_RGB;
g_value_init (&colorimetry, G_TYPE_STRING);
g_value_take_string (&colorimetry,
gst_video_colorimetry_to_string (&cinfo));