Hi Experts,
I am using the hardware video resizer of the DM6446 to resize 352x288 pixel
UYVY video to 720x480 pixel UYVY video. I have configured the resizer
driver according to the resize parameters returned by the tool calccoef.
Video resizing is done perfectly but video-chroma is lost during the
resize. can someone explain me the reason and help me to resolve the issue.
Configuration parameter for the resizer is as follows (generated by
calccoef):
/* horizontal filter type = BICUBIC */
/* hrsz = 123 */
/* vertical filter type = BICUBIC */
/* vrsz = 151 */
static rsz_params_t resizer_params = {
352, /* in_hsize */
288, /* in_vsize */
704, /* in_pitch */
RSZ_INTYPE_YCBCR422_16BIT, /* inptyp */
0, /* vert_starting_pixel */
0, /* horz_starting_pixel */
1, /* cbilin */
RSZ_PIX_FMT_UYVY, /* pix_fmt */
720, /* out_hsize */
480, /* out_vsize */
1440, /* out_pitch */
0, /* hstph */
0, /* vstph */
/*horizontal resizing filter coefficients: */
{
0,
256,
0,
0,
-11,
245,
23,
-1,
-17,
220,
58,
-5,
-18,
184,
100,
-10,
-15,
143,
143,
-15,
-10,
100,
184,
-18,
-5,
58,
220,
-17,
-1,
23,
245,
-11,
},
/*vertical resizing filter coefficients: */
{
0,
256,
0,
0,
-11,
245,
23,
-1,
-17,
220,
58,
-5,
-18,
184,
100,
-10,
-15,
143,
143,
-15,
-10,
100,
184,
-18,
-5,
58,
220,
-17,
-1,
23,
245,
-11,
},
{
RSZ_YENH_DISABLE,
}
};
regards/Amaresh
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