35 ptrdiff_t mask_stride,
37 ptrdiff_t srcy_stride,
40 ptrdiff_t srcuv_stride,
45 for (
i = 0, j = 0, k = 0;
i <
w; j += (
i & 1),
i++, k += 3) {
46 if (!use_mask ||
mask[
i] == maskcolor) {
48 dst[k] = dst[k + 1] = dst[k + 2] = 0x80;
51 int u = srcu[j] - 128;
52 int v = srcv[j] - 128;
54 dst[k + 1] =
av_clip_uint8(y + (-22554 *
u - 46802 * v + 32768 >> 16));
62 srcu += srcuv_stride * (
r & 1);
63 srcv += srcuv_stride * (
r & 1);
68 const uint8_t *srcy, ptrdiff_t srcy_stride,
70 ptrdiff_t srcuv_stride,
int w,
int h)
75 srcu, srcv, srcuv_stride,
81 ptrdiff_t mask_stride,
82 const uint8_t *srcy, ptrdiff_t srcy_stride,
84 ptrdiff_t srcuv_stride,
int w,
int h)
87 maskcolor,
mask, mask_stride,
89 srcu, srcv, srcuv_stride,
95 ptrdiff_t mask_stride,
int w,
int h)
98 maskcolor,
mask, mask_stride,
117 memcpy(plane + plane_stride * j,
118 plane + plane_stride * (j >> 1),
121 while ((j -= 2) > 0) {
122 dst1 = plane + plane_stride * (j + 1);
123 dst2 = plane + plane_stride * j;
124 src1 = plane + plane_stride * ((j + 1) >> 1);
125 src2 = plane + plane_stride * ( j >> 1);
127 for (
i = (
w - 1) >> 1;
i >= 0;
i--) {
130 dst1[
i] = (3 *
a +
b + 2) >> 2;
131 dst2[
i] = (
a + 3 *
b + 2) >> 2;
135 for (j =
h - 1; j >= 0; j--) {
136 p = plane + plane_stride * j;
141 while ((
i -= 2) > 0) {
144 p[
i] = (3 *
a +
b + 1) >> 2;
145 p[
i + 1] = (
a + 3 *
b + 1) >> 2;
#define u(width, name, range_min, range_max)
common internal and external API header
static const uint16_t mask[17]
av_cold void ff_mss2dsp_init(MSS2DSPContext *dsp)
static void mss2_blit_wmv9_masked_c(uint8_t *dst, ptrdiff_t dst_stride, int maskcolor, const uint8_t *mask, ptrdiff_t mask_stride, const uint8_t *srcy, ptrdiff_t srcy_stride, const uint8_t *srcu, const uint8_t *srcv, ptrdiff_t srcuv_stride, int w, int h)
static void mss2_blit_wmv9_c(uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *srcy, ptrdiff_t srcy_stride, const uint8_t *srcu, const uint8_t *srcv, ptrdiff_t srcuv_stride, int w, int h)
static void upsample_plane_c(uint8_t *plane, ptrdiff_t plane_stride, int w, int h)
static av_always_inline void mss2_blit_wmv9_template(uint8_t *dst, ptrdiff_t dst_stride, int gray, int use_mask, int maskcolor, const uint8_t *mask, ptrdiff_t mask_stride, const uint8_t *srcy, ptrdiff_t srcy_stride, const uint8_t *srcu, const uint8_t *srcv, ptrdiff_t srcuv_stride, int w, int h)
static void mss2_gray_fill_masked_c(uint8_t *dst, ptrdiff_t dst_stride, int maskcolor, const uint8_t *mask, ptrdiff_t mask_stride, int w, int h)
Microsoft Screen 2 (aka Windows Media Video V9 Screen) decoder DSP routines.
void(* mss2_blit_wmv9_masked)(uint8_t *dst, ptrdiff_t dst_stride, int maskcolor, const uint8_t *mask, ptrdiff_t mask_stride, const uint8_t *srcy, ptrdiff_t srcy_stride, const uint8_t *srcu, const uint8_t *srcv, ptrdiff_t srcuv_stride, int w, int h)
void(* mss2_gray_fill_masked)(uint8_t *dst, ptrdiff_t dst_stride, int maskcolor, const uint8_t *mask, ptrdiff_t mask_stride, int w, int h)
void(* upsample_plane)(uint8_t *plane, ptrdiff_t plane_stride, int w, int h)
void(* mss2_blit_wmv9)(uint8_t *dst, ptrdiff_t dst_stride, const uint8_t *srcy, ptrdiff_t srcy_stride, const uint8_t *srcu, const uint8_t *srcv, ptrdiff_t srcuv_stride, int w, int h)