*is_packed_rgba = ff_fill_rgba_map(rgba_map, pix_fmt) >= 0;
if (*is_packed_rgba) {
pixel_step[0] = (av_get_bits_per_pixel(pix_desc))>>3;
for (i = 0; i < 4; i++)
dst_color[rgba_map[i]] = rgba_color[i];
line[0] = av_malloc(w * pixel_step[0]);
for (i = 0; i < w; i++)
memcpy(line[0] + i * pixel_step[0], dst_color, pixel_step[0]);
if (rgba_map_ptr)
memcpy(rgba_map_ptr, rgba_map, sizeof(rgba_map[0]) * 4);
} else {
int plane;
dst_color[0] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]);
dst_color[1] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
dst_color[2] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0);
dst_color[3] = rgba_color[3];
for (plane = 0; plane < 4; plane++) {
int line_size;
int hsub1 = (plane == 1 || plane == 2) ? hsub : 0;
pixel_step[plane] = 1;
line_size = FF_CEIL_RSHIFT(w, hsub1) * pixel_step[plane];
line[plane] = av_malloc(line_size);
memset(line[plane], dst_color[plane], line_size);
}
}
static void
rgb24_to_yuv420p(AVPicture *dst, const AVPicture *src, int width, int height)
{
int wrap, wrap3, width2;
int r, g, b, r1, g1, b1, w;
uint8_t *lum, *cb, *cr;
const uint8_t *p;
lum = dst->data[0];
cb = dst->data[1];
cr = dst->data[2];
width2 = (width + 1) >> 1;
wrap = dst->linesize[0];
wrap3 = src->linesize[0];
p = src->data[0];
for (; height>=2 ; height-=2) {
for(w = width ; w>=2 ; w-=2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 2);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 2);
cb++;
cr++;
p += -wrap3 + 2 * BPP;
lum += -wrap + 2;
}
if (w) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
p += wrap3;
lum += wrap;
RGB_IN(r, g, b, p);
r1 += r;
g1 += g;
b1 += b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
cb++;
cr++;
p += -wrap3 + BPP;
lum += -wrap + 1;
}
p += wrap3 + (wrap3 - width * BPP);
lum += wrap + (wrap - width);
cb += dst->linesize[1] - width2;
cr += dst->linesize[2] - width2;
}
/* handle odd height */
if (height) {
for(w = width; w >= 2; w -= 2) {
RGB_IN(r, g, b, p);
r1 = r;
g1 = g;
b1 = b;
lum[0] = RGB_TO_Y_CCIR(r, g, b);
RGB_IN(r, g, b, p + BPP);
r1 += r;
g1 += g;
b1 += b;
lum[1] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r1, g1, b1, 1);
cr[0] = RGB_TO_V_CCIR(r1, g1, b1, 1);
cb++;
cr++;
p += 2 * BPP;
lum += 2;
}
if (w) {
RGB_IN(r, g, b, p);
lum[0] = RGB_TO_Y_CCIR(r, g, b);
cb[0] = RGB_TO_U_CCIR(r, g, b, 0);
cr[0] = RGB_TO_V_CCIR(r, g, b, 0);
}
}
}