return decode_pixel(acoder, pctx, ref_pix, nlen, 1);
}
-static int decode_region(ArithCoder *acoder, uint8_t *dst, uint8_t *rgb_pic,
+static int decode_region(ArithCoder *acoder, uint8_t *dst, uint8_t *rgb_dst,
int x, int y, int width, int height, ptrdiff_t stride,
ptrdiff_t rgb_stride, PixContext *pctx,
const uint32_t *pal)
{
int i, j, p;
- uint8_t *rgb_dst = rgb_pic + x * 3 + y * rgb_stride;
+ rgb_stride = rgb_dst ? rgb_stride : 0;
+ rgb_dst = rgb_dst ? rgb_dst + x * 3 + y * rgb_stride : NULL;
dst += x + y * stride;
for (j = 0; j < height; j++) {
return p;
dst[i] = p;
- if (rgb_pic)
+ if (rgb_dst)
AV_WB24(rgb_dst + i * 3, pal[p]);
}
dst += stride;
- rgb_dst += rgb_stride;
+ rgb_dst = FF_PTR_ADD(rgb_dst, rgb_stride);
}
return 0;
ptrdiff_t stride = c->pal_stride;
ptrdiff_t rgb_stride = c->rgb_stride;
uint8_t *dst = c->pal_pic + x + y * stride;
- uint8_t *rgb_dst = c->rgb_pic + x * 3 + y * rgb_stride;
+ uint8_t *rgb_dst = c->rgb_pic ? c->rgb_pic + x * 3 + y * rgb_stride : NULL;
pix = decode_pixel(acoder, &sc->intra_pix_ctx, NULL, 0, 0);
if (pix < 0)
return pix;
rgb_pix = c->pal[pix];
- for (i = 0; i < height; i++, dst += stride, rgb_dst += rgb_stride) {
+ for (i = 0; i < height; i++, dst += stride) {
memset(dst, pix, width);
- if (c->rgb_pic)
+ if (rgb_dst) {
for (j = 0; j < width * 3; j += 3)
AV_WB24(rgb_dst + j, rgb_pix);
+ rgb_dst += rgb_stride;
+ }
}
} else {
return decode_region(acoder, c->pal_pic, c->rgb_pic,