mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-09-30 07:42:32 +00:00
Code Issues 1 Projects Releases Wiki Activity

video-converter: support AYUV border

Browse source 
Convert the border color from ARGB to AYUV, using
colorimetry matrix when output format is YUV.

https://bugzilla.gnome.org/show_bug.cgi?id=741640
This commit is contained in:
Ravi Kiran K N 2015-02-06 15:39:14 +05:30 committed by Wim Taymans
parent c78bdbfecb
commit bd836e12a1
1 changed files with 27 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

29
gst-libs/gst/video/video-converter.c
View file

@ -1654,8 +1654,33 @@ setup_borderline (GstVideoConverter * convert)
out_finfo = convert->out_info.finfo;
if (GST_VIDEO_INFO_IS_YUV (&convert->out_info)) {
/* FIXME, convert to AYUV, just black for now */
border_val = GINT32_FROM_BE (0x00007f7f);
MatrixData cm;
gint a, r, g, b;
gint y, u, v;
/* Get Color matrix. */
color_matrix_set_identity (&cm);
compute_matrix_to_YUV (convert, &cm);
color_matrix_convert (&cm);
border_val = GINT32_FROM_BE (convert->border_argb);
b = (0xFF000000 & border_val) >> 24;
g = (0x00FF0000 & border_val) >> 16;
r = (0x0000FF00 & border_val) >> 8;
a = (0x000000FF & border_val);
y = 16 + ((r * cm.im[0][0] + g * cm.im[0][1] + b * cm.im[0][2]) >> 8);
u = 128 + ((r * cm.im[1][0] + g * cm.im[1][1] + b * cm.im[1][2]) >> 8);
v = 128 + ((r * cm.im[2][0] + g * cm.im[2][1] + b * cm.im[2][2]) >> 8);
a = CLAMP (a, 0, 255);
y = CLAMP (y, 0, 255);
u = CLAMP (u, 0, 255);
v = CLAMP (v, 0, 255);
border_val = a | (y << 8) | (u << 16) | (v << 24);
} else {
border_val = GINT32_FROM_BE (convert->border_argb);
}