28 int16_t *low, ptrdiff_t low_stride,
29 int16_t *high, ptrdiff_t high_stride,
32 low[(0>>1) * low_stride] =
av_clip_int16(input[0*in_stride] + input[1*in_stride]);
33 high[(0>>1) * high_stride] =
av_clip_int16((5 * input[0*in_stride] - 11 * input[1*in_stride] +
34 4 * input[2*in_stride] + 4 * input[3*in_stride] -
35 1 * input[4*in_stride] - 1 * input[5*in_stride] + 4) >> 3);
37 for (
int i = 2;
i <
len - 2;
i += 2) {
38 low[(
i>>1) * low_stride] =
av_clip_int16(input[
i*in_stride] + input[(
i+1)*in_stride]);
39 high[(
i>>1) * high_stride] =
av_clip_int16(((-input[(
i-2)*in_stride] - input[(
i-1)*in_stride] +
40 input[(
i+2)*in_stride] + input[(
i+3)*in_stride] + 4) >> 3) +
41 input[(
i+0)*in_stride] - input[(
i+1)*in_stride]);
44 low[((
len-2)>>1) * low_stride] =
av_clip_int16(input[((
len-2)+0)*in_stride] + input[((
len-2)+1)*in_stride]);
45 high[((
len-2)>>1) * high_stride] =
av_clip_int16((11* input[((
len-2)+0)*in_stride] - 5 * input[((
len-2)+1)*in_stride] -
46 4 * input[((
len-2)-1)*in_stride] - 4 * input[((
len-2)-2)*in_stride] +
47 1 * input[((
len-2)-3)*in_stride] + 1 * input[((
len-2)-4)*in_stride] + 4) >> 3);
50 static void horiz_filter(int16_t *input, int16_t *low, int16_t *high,
51 ptrdiff_t in_stride, ptrdiff_t low_stride,
52 ptrdiff_t high_stride,
63 static void vert_filter(int16_t *input, int16_t *low, int16_t *high,
64 ptrdiff_t in_stride, ptrdiff_t low_stride,
65 ptrdiff_t high_stride,
69 filter(&input[
i], in_stride, &low[
i], low_stride, &high[
i], high_stride,
height);
Macro definitions for various function/variable attributes.
simple assert() macros that are a bit more flexible than ISO C assert().
static av_always_inline void filter(int16_t *input, ptrdiff_t in_stride, int16_t *low, ptrdiff_t low_stride, int16_t *high, ptrdiff_t high_stride, int len)
static void horiz_filter(int16_t *input, int16_t *low, int16_t *high, ptrdiff_t in_stride, ptrdiff_t low_stride, ptrdiff_t high_stride, int width, int height)
av_cold void ff_cfhdencdsp_init(CFHDEncDSPContext *c)
static void vert_filter(int16_t *input, int16_t *low, int16_t *high, ptrdiff_t in_stride, ptrdiff_t low_stride, ptrdiff_t high_stride, int width, int height)
void ff_cfhdencdsp_init_x86(CFHDEncDSPContext *c)
common internal and external API header