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Added pixel format converter yuyv422_to_nv12 #42

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Added pixel format converter yuyv422_to_nv12 #42

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40 changes: 39 additions & 1 deletion src/vidconv/vconv.c
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Original file line number Diff line number Diff line change
Expand Up @@ -271,6 +271,43 @@ static void yuyv422_to_yuv420p(unsigned xoffs, unsigned width, double rw,
}


static void yuyv422_to_nv12(unsigned xoffs, unsigned width, double rw,
unsigned yd, unsigned ys, unsigned ys2,
uint8_t *dd0, uint8_t *dd1, uint8_t *dd2,
unsigned lsd,
const uint8_t *sd0, const uint8_t *sd1,
const uint8_t *sd2, unsigned lss
)
{
unsigned x, xd, xs;
unsigned id, is, is2;

(void)sd1;
(void)sd2;

for (x=0; x<width; x+=2) {

xd = x + xoffs;

xs = ((unsigned)(x * rw * 2)) & ~3;

id = xd + yd*lsd;
is = xs + ys*lss;
is2 = xs + ys2*lss;

dd0[id] = sd0[is];
dd0[id+1] = sd0[is + 2];
dd0[id + lsd] = sd0[is2];
dd0[id+1 + lsd] = sd0[is2 + 2];

id = xd + yd*lsd/2;

dd1[id] = sd0[is + 1];
dd1[id + 1] = sd0[is + 3];
}
}


static void uyvy422_to_yuv420p(unsigned xoffs, unsigned width, double rw,
unsigned yd, unsigned ys, unsigned ys2,
uint8_t *dd0, uint8_t *dd1, uint8_t *dd2,
Expand Down Expand Up @@ -754,7 +791,8 @@ static line_h *conv_table[MAX_SRC][MAX_DST] = {
*/
{yuv420p_to_yuv420p, NULL, NULL, yuv420p_to_rgb32, NULL,
yuv420p_to_rgb565, yuv420p_to_rgb555, yuv420p_to_nv12},
{yuyv422_to_yuv420p, NULL, NULL, NULL, NULL, NULL, NULL},
{yuyv422_to_yuv420p, NULL, NULL, NULL, NULL, NULL, NULL,
yuyv422_to_nv12},
{uyvy422_to_yuv420p, NULL, NULL, NULL, NULL, NULL, NULL},
{rgb32_to_yuv420p, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, rgb32_to_yuv444p},
Expand Down