/**
* weaker deblocking very similar to the one described in 4.4.2 of JVT-A003r1
*/
-static inline void rv40_weak_loop_filter(uint8_t *src, const int step,
- const int filter_p1, const int filter_q1,
- const int alpha, const int beta,
- const int lim_p0q0,
- const int lim_q1, const int lim_p1,
- const int diff_p1p0, const int diff_q1q0,
- const int diff_p1p2, const int diff_q1q2)
+static av_always_inline void rv40_weak_loop_filter(uint8_t *src,
+ const int step,
+ const int stride,
+ const int filter_p1,
+ const int filter_q1,
+ const int alpha,
+ const int beta,
+ const int lim_p0q0,
+ const int lim_q1,
+ const int lim_p1)
{
uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
- int t, u, diff;
-
- t = src[0*step] - src[-1*step];
- if(!t)
- return;
- u = (alpha * FFABS(t)) >> 7;
- if(u > 3 - (filter_p1 && filter_q1))
- return;
-
- t <<= 2;
- if(filter_p1 && filter_q1)
- t += src[-2*step] - src[1*step];
- diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
- src[-1*step] = cm[src[-1*step] + diff];
- src[ 0*step] = cm[src[ 0*step] - diff];
- if(FFABS(diff_p1p2) <= beta && filter_p1){
- t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
- src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
+ int i, t, u, diff;
+
+ for (i = 0; i < 4; i++, src += stride) {
+ int diff_p1p0 = src[-2*step] - src[-1*step];
+ int diff_q1q0 = src[ 1*step] - src[ 0*step];
+ int diff_p1p2 = src[-2*step] - src[-3*step];
+ int diff_q1q2 = src[ 1*step] - src[ 2*step];
+
+ t = src[0*step] - src[-1*step];
+ if (!t)
+ continue;
+
+ u = (alpha * FFABS(t)) >> 7;
+ if (u > 3 - (filter_p1 && filter_q1))
+ continue;
+
+ t <<= 2;
+ if (filter_p1 && filter_q1)
+ t += src[-2*step] - src[1*step];
+
+ diff = CLIP_SYMM((t + 4) >> 3, lim_p0q0);
+ src[-1*step] = cm[src[-1*step] + diff];
+ src[ 0*step] = cm[src[ 0*step] - diff];
+
+ if (filter_p1 && FFABS(diff_p1p2) <= beta) {
+ t = (diff_p1p0 + diff_p1p2 - diff) >> 1;
+ src[-2*step] = cm[src[-2*step] - CLIP_SYMM(t, lim_p1)];
+ }
+
+ if (filter_q1 && FFABS(diff_q1q2) <= beta) {
+ t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
+ src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
+ }
}
- if(FFABS(diff_q1q2) <= beta && filter_q1){
- t = (diff_q1q0 + diff_q1q2 + diff) >> 1;
- src[ 1*step] = cm[src[ 1*step] - CLIP_SYMM(t, lim_q1)];
+}
+
+static void rv40_h_weak_loop_filter(uint8_t *src, const int stride,
+ const int filter_p1, const int filter_q1,
+ const int alpha, const int beta,
+ const int lim_p0q0, const int lim_q1,
+ const int lim_p1)
+{
+ rv40_weak_loop_filter(src, stride, 1, filter_p1, filter_q1,
+ alpha, beta, lim_p0q0, lim_q1, lim_p1);
+}
+
+static void rv40_v_weak_loop_filter(uint8_t *src, const int stride,
+ const int filter_p1, const int filter_q1,
+ const int alpha, const int beta,
+ const int lim_p0q0, const int lim_q1,
+ const int lim_p1)
+{
+ rv40_weak_loop_filter(src, 1, stride, filter_p1, filter_q1,
+ alpha, beta, lim_p0q0, lim_q1, lim_p1);
+}
+
+static av_always_inline void rv40_strong_loop_filter(uint8_t *src,
+ const int step,
+ const int stride,
+ const int alpha,
+ const int lims,
+ const int dmode,
+ const int chroma)
+{
+ int i;
+
+ for(i = 0; i < 4; i++, src += stride){
+ int sflag, p0, q0, p1, q1;
+ int t = src[0*step] - src[-1*step];
+
+ if (!t)
+ continue;
+
+ sflag = (alpha * FFABS(t)) >> 7;
+ if (sflag > 1)
+ continue;
+
+ p0 = (25*src[-3*step] + 26*src[-2*step] + 26*src[-1*step] +
+ 26*src[ 0*step] + 25*src[ 1*step] +
+ rv40_dither_l[dmode + i]) >> 7;
+
+ q0 = (25*src[-2*step] + 26*src[-1*step] + 26*src[ 0*step] +
+ 26*src[ 1*step] + 25*src[ 2*step] +
+ rv40_dither_r[dmode + i]) >> 7;
+
+ if (sflag) {
+ p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
+ q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
+ }
+
+ p1 = (25*src[-4*step] + 26*src[-3*step] + 26*src[-2*step] + 26*p0 +
+ 25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
+ q1 = (25*src[-1*step] + 26*q0 + 26*src[ 1*step] + 26*src[ 2*step] +
+ 25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
+
+ if (sflag) {
+ p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
+ q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
+ }
+
+ src[-2*step] = p1;
+ src[-1*step] = p0;
+ src[ 0*step] = q0;
+ src[ 1*step] = q1;
+
+ if(!chroma){
+ src[-3*step] = (25*src[-1*step] + 26*src[-2*step] +
+ 51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
+ src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] +
+ 51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
+ }
}
}
-static av_always_inline void rv40_adaptive_loop_filter(uint8_t *src, const int step,
- const int stride, const int dmode,
- const int lim_q1, const int lim_p1,
- const int alpha,
- const int beta, const int beta2,
- const int chroma, const int edge)
+static void rv40_h_strong_loop_filter(uint8_t *src, const int stride,
+ const int alpha, const int lims,
+ const int dmode, const int chroma)
+{
+ rv40_strong_loop_filter(src, stride, 1, alpha, lims, dmode, chroma);
+}
+
+static void rv40_v_strong_loop_filter(uint8_t *src, const int stride,
+ const int alpha, const int lims,
+ const int dmode, const int chroma)
+{
+ rv40_strong_loop_filter(src, 1, stride, alpha, lims, dmode, chroma);
+}
+
+static av_always_inline int rv40_loop_filter_strength(uint8_t *src,
+ int step, int stride,
+ int beta, int beta2,
+ int edge,
+ int *p1, int *q1)
{
- int diff_p1p0[4], diff_q1q0[4], diff_p1p2[4], diff_q1q2[4];
int sum_p1p0 = 0, sum_q1q0 = 0, sum_p1p2 = 0, sum_q1q2 = 0;
+ int strong0 = 0, strong1 = 0;
uint8_t *ptr;
- int flag_strong0 = 1, flag_strong1 = 1;
- int filter_p1, filter_q1;
int i;
- int lims;
- for(i = 0, ptr = src; i < 4; i++, ptr += stride){
- diff_p1p0[i] = ptr[-2*step] - ptr[-1*step];
- diff_q1q0[i] = ptr[ 1*step] - ptr[ 0*step];
- sum_p1p0 += diff_p1p0[i];
- sum_q1q0 += diff_q1q0[i];
- }
- filter_p1 = FFABS(sum_p1p0) < (beta<<2);
- filter_q1 = FFABS(sum_q1q0) < (beta<<2);
- if(!filter_p1 && !filter_q1)
- return;
-
- for(i = 0, ptr = src; i < 4; i++, ptr += stride){
- diff_p1p2[i] = ptr[-2*step] - ptr[-3*step];
- diff_q1q2[i] = ptr[ 1*step] - ptr[ 2*step];
- sum_p1p2 += diff_p1p2[i];
- sum_q1q2 += diff_q1q2[i];
+ for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
+ sum_p1p0 += ptr[-2*step] - ptr[-1*step];
+ sum_q1q0 += ptr[ 1*step] - ptr[ 0*step];
}
- if(edge){
- flag_strong0 = filter_p1 && (FFABS(sum_p1p2) < beta2);
- flag_strong1 = filter_q1 && (FFABS(sum_q1q2) < beta2);
- }else{
- flag_strong0 = flag_strong1 = 0;
- }
+ *p1 = FFABS(sum_p1p0) < (beta << 2);
+ *q1 = FFABS(sum_q1q0) < (beta << 2);
- lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1;
- if(flag_strong0 && flag_strong1){ /* strong filtering */
- for(i = 0; i < 4; i++, src += stride){
- int sflag, p0, q0, p1, q1;
- int t = src[0*step] - src[-1*step];
-
- if(!t) continue;
- sflag = (alpha * FFABS(t)) >> 7;
- if(sflag > 1) continue;
-
- p0 = (25*src[-3*step] + 26*src[-2*step]
- + 26*src[-1*step]
- + 26*src[ 0*step] + 25*src[ 1*step] + rv40_dither_l[dmode + i]) >> 7;
- q0 = (25*src[-2*step] + 26*src[-1*step]
- + 26*src[ 0*step]
- + 26*src[ 1*step] + 25*src[ 2*step] + rv40_dither_r[dmode + i]) >> 7;
- if(sflag){
- p0 = av_clip(p0, src[-1*step] - lims, src[-1*step] + lims);
- q0 = av_clip(q0, src[ 0*step] - lims, src[ 0*step] + lims);
- }
- p1 = (25*src[-4*step] + 26*src[-3*step]
- + 26*src[-2*step]
- + 26*p0 + 25*src[ 0*step] + rv40_dither_l[dmode + i]) >> 7;
- q1 = (25*src[-1*step] + 26*q0
- + 26*src[ 1*step]
- + 26*src[ 2*step] + 25*src[ 3*step] + rv40_dither_r[dmode + i]) >> 7;
- if(sflag){
- p1 = av_clip(p1, src[-2*step] - lims, src[-2*step] + lims);
- q1 = av_clip(q1, src[ 1*step] - lims, src[ 1*step] + lims);
- }
- src[-2*step] = p1;
- src[-1*step] = p0;
- src[ 0*step] = q0;
- src[ 1*step] = q1;
- if(!chroma){
- src[-3*step] = (25*src[-1*step] + 26*src[-2*step] + 51*src[-3*step] + 26*src[-4*step] + 64) >> 7;
- src[ 2*step] = (25*src[ 0*step] + 26*src[ 1*step] + 51*src[ 2*step] + 26*src[ 3*step] + 64) >> 7;
- }
- }
- }else if(filter_p1 && filter_q1){
- for(i = 0; i < 4; i++, src += stride)
- rv40_weak_loop_filter(src, step, 1, 1, alpha, beta, lims, lim_q1, lim_p1,
- diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
- }else{
- for(i = 0; i < 4; i++, src += stride)
- rv40_weak_loop_filter(src, step, filter_p1, filter_q1,
- alpha, beta, lims>>1, lim_q1>>1, lim_p1>>1,
- diff_p1p0[i], diff_q1q0[i], diff_p1p2[i], diff_q1q2[i]);
+ if(!*p1 && !*q1)
+ return 0;
+
+ if (!edge)
+ return 0;
+
+ for (i = 0, ptr = src; i < 4; i++, ptr += stride) {
+ sum_p1p2 += ptr[-2*step] - ptr[-3*step];
+ sum_q1q2 += ptr[ 1*step] - ptr[ 2*step];
}
+
+ strong0 = *p1 && (FFABS(sum_p1p2) < beta2);
+ strong1 = *q1 && (FFABS(sum_q1q2) < beta2);
+
+ return strong0 && strong1;
}
-static void rv40_v_loop_filter(uint8_t *src, int stride, int dmode,
- int lim_q1, int lim_p1,
- int alpha, int beta, int beta2, int chroma, int edge){
- rv40_adaptive_loop_filter(src, 1, stride, dmode, lim_q1, lim_p1,
- alpha, beta, beta2, chroma, edge);
+static int rv40_h_loop_filter_strength(uint8_t *src, int stride,
+ int beta, int beta2, int edge,
+ int *p1, int *q1)
+{
+ return rv40_loop_filter_strength(src, stride, 1, beta, beta2, edge, p1, q1);
}
-static void rv40_h_loop_filter(uint8_t *src, int stride, int dmode,
- int lim_q1, int lim_p1,
- int alpha, int beta, int beta2, int chroma, int edge){
- rv40_adaptive_loop_filter(src, stride, 1, dmode, lim_q1, lim_p1,
- alpha, beta, beta2, chroma, edge);
+
+static int rv40_v_loop_filter_strength(uint8_t *src, int stride,
+ int beta, int beta2, int edge,
+ int *p1, int *q1)
+{
+ return rv40_loop_filter_strength(src, 1, stride, beta, beta2, edge, p1, q1);
}
av_cold void ff_rv40dsp_init(RV34DSPContext *c, DSPContext* dsp) {
c->rv40_weight_pixels_tab[0] = rv40_weight_func_16;
c->rv40_weight_pixels_tab[1] = rv40_weight_func_8;
- c->rv40_h_loop_filter = rv40_h_loop_filter;
- c->rv40_v_loop_filter = rv40_v_loop_filter;
+ c->rv40_weak_loop_filter[0] = rv40_h_weak_loop_filter;
+ c->rv40_weak_loop_filter[1] = rv40_v_weak_loop_filter;
+ c->rv40_strong_loop_filter[0] = rv40_h_strong_loop_filter;
+ c->rv40_strong_loop_filter[1] = rv40_v_strong_loop_filter;
+ c->rv40_loop_filter_strength[0] = rv40_h_loop_filter_strength;
+ c->rv40_loop_filter_strength[1] = rv40_v_loop_filter_strength;
if (HAVE_MMX)
ff_rv40dsp_init_x86(c, dsp);
projects / ffmpeg / blobdiff