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;
53 dst[k] = av_clip_uint8(y + ( 91881 * v + 32768 >> 16));
54 dst[k + 1] = av_clip_uint8(y + (-22554 * u - 46802 * v + 32768 >> 16));
55 dst[k + 2] = av_clip_uint8(y + (116130 * u + 32768 >> 16));
62 srcu += srcuv_stride * (r & 1);
63 srcv += srcuv_stride * (r & 1);
68 const uint8_t *srcy,
int srcy_stride,
70 int srcuv_stride,
int w,
int h)
75 srcu, srcv, srcuv_stride,
82 const uint8_t *srcy,
int srcy_stride,
84 int srcuv_stride,
int w,
int h)
87 maskcolor, mask, mask_stride,
89 srcu, srcv, srcuv_stride,
95 int mask_stride,
int w,
int h)
98 maskcolor, mask, mask_stride,
106 uint8_t *src1, *src2, *dst1, *dst2, *p,
a,
b;
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;
void(* mss2_gray_fill_masked)(uint8_t *dst, int dst_stride, int maskcolor, const uint8_t *mask, int mask_stride, int w, int h)
void(* mss2_blit_wmv9)(uint8_t *dst, int dst_stride, const uint8_t *srcy, int srcy_stride, const uint8_t *srcu, const uint8_t *srcv, int srcuv_stride, int w, int h)
av_cold void ff_mss2dsp_init(MSS2DSPContext *dsp)
static const uint16_t mask[17]
void(* upsample_plane)(uint8_t *plane, int plane_stride, int w, int h)
static void mss2_gray_fill_masked_c(uint8_t *dst, int dst_stride, int maskcolor, const uint8_t *mask, int mask_stride, int w, int h)
static void mss2_blit_wmv9_masked_c(uint8_t *dst, int dst_stride, int maskcolor, const uint8_t *mask, int mask_stride, const uint8_t *srcy, int srcy_stride, const uint8_t *srcu, const uint8_t *srcv, int srcuv_stride, int w, int h)
static av_always_inline void mss2_blit_wmv9_template(uint8_t *dst, int dst_stride, int gray, int use_mask, int maskcolor, const uint8_t *mask, int mask_stride, const uint8_t *srcy, int srcy_stride, const uint8_t *srcu, const uint8_t *srcv, int srcuv_stride, int w, int h)
common internal and external API header
void(* mss2_blit_wmv9_masked)(uint8_t *dst, int dst_stride, int maskcolor, const uint8_t *mask, int mask_stride, const uint8_t *srcy, int srcy_stride, const uint8_t *srcu, const uint8_t *srcv, int srcuv_stride, int w, int h)
Microsoft Screen 2 (aka Windows Media Video V9 Screen) decoder DSP routines.
static void upsample_plane_c(uint8_t *plane, int plane_stride, int w, int h)
static void mss2_blit_wmv9_c(uint8_t *dst, int dst_stride, const uint8_t *srcy, int srcy_stride, const uint8_t *srcu, const uint8_t *srcv, int srcuv_stride, int w, int h)