X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Frv40.c;h=fe104c19088344226b4ef204c42f5f1cd08c6d61;hb=6a56f4e63423d616b2224f654c1794fac25d6cfb;hp=02229830872d2cd5cf622af8f0dab39443827187;hpb=266172aaf968bb71713490cdc64ae4929ad08b8b;p=ffmpeg diff --git a/libavcodec/rv40.c b/libavcodec/rv40.c index 02229830872..fe104c19088 100644 --- a/libavcodec/rv40.c +++ b/libavcodec/rv40.c @@ -274,148 +274,6 @@ static int rv40_decode_mb_info(RV34DecContext *r) return 0; } -#define CLIP_SYMM(a, b) av_clip(a, -(b), b) -/** - * 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) -{ - 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)]; - } - 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 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) -{ - 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; - 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]; - } - - if(edge){ - flag_strong0 = filter_p1 && (FFABS(sum_p1p2) < beta2); - flag_strong1 = filter_q1 && (FFABS(sum_q1q2) < beta2); - }else{ - flag_strong0 = flag_strong1 = 0; - } - - 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]); - } -} - -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 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); -} - enum RV40BlockPos{ POS_CUR, POS_TOP, @@ -439,6 +297,34 @@ enum RV40BlockPos{ static const int neighbour_offs_x[4] = { 0, 0, -1, 0 }; static const int neighbour_offs_y[4] = { 0, -1, 0, 1 }; +static void rv40_adaptive_loop_filter(RV34DSPContext *rdsp, + uint8_t *src, int stride, int dmode, + int lim_q1, int lim_p1, + int alpha, int beta, int beta2, + int chroma, int edge, int dir) +{ + int filter_p1, filter_q1; + int strong; + int lims; + + strong = rdsp->rv40_loop_filter_strength[dir](src, stride, beta, beta2, + edge, &filter_p1, &filter_q1); + + lims = filter_p1 + filter_q1 + ((lim_q1 + lim_p1) >> 1) + 1; + + if (strong) { + rdsp->rv40_strong_loop_filter[dir](src, stride, alpha, + lims, dmode, chroma); + } else if (filter_p1 & filter_q1) { + rdsp->rv40_weak_loop_filter[dir](src, stride, 1, 1, alpha, beta, + lims, lim_q1, lim_p1); + } else if (filter_p1 | filter_q1) { + rdsp->rv40_weak_loop_filter[dir](src, stride, filter_p1, filter_q1, + alpha, beta, lims >> 1, lim_q1 >> 1, + lim_p1 >> 1); + } +} + /** * RV40 loop filtering function */ @@ -575,10 +461,11 @@ static void rv40_loop_filter(RV34DecContext *r, int row) // if bottom block is coded then we can filter its top edge // (or bottom edge of this block, which is the same) if(y_h_deblock & (MASK_BOTTOM << ij)){ - rv40_h_loop_filter(Y+4*s->linesize, s->linesize, dither, - y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0, - clip_cur, - alpha, beta, betaY, 0, 0); + rv40_adaptive_loop_filter(&r->rdsp, Y+4*s->linesize, + s->linesize, dither, + y_to_deblock & (MASK_BOTTOM << ij) ? clip[POS_CUR] : 0, + clip_cur, alpha, beta, betaY, + 0, 0, 0); } // filter left block edge in ordinary mode (with low filtering strength) if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){ @@ -586,25 +473,25 @@ static void rv40_loop_filter(RV34DecContext *r, int row) clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0; else clip_left = y_to_deblock & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0; - rv40_v_loop_filter(Y, s->linesize, dither, - clip_cur, - clip_left, - alpha, beta, betaY, 0, 0); + rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, + clip_cur, + clip_left, + alpha, beta, betaY, 0, 0, 1); } // filter top edge of the current macroblock when filtering strength is high if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){ - rv40_h_loop_filter(Y, s->linesize, dither, + rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, clip_cur, mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0, - alpha, beta, betaY, 0, 1); + alpha, beta, betaY, 0, 1, 0); } // filter left block edge in edge mode (with high filtering strength) if(y_v_deblock & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){ clip_left = mvmasks[POS_LEFT] & (MASK_RIGHT << j) ? clip[POS_LEFT] : 0; - rv40_v_loop_filter(Y, s->linesize, dither, + rv40_adaptive_loop_filter(&r->rdsp, Y, s->linesize, dither, clip_cur, clip_left, - alpha, beta, betaY, 0, 1); + alpha, beta, betaY, 0, 1, 1); } } } @@ -616,34 +503,34 @@ static void rv40_loop_filter(RV34DecContext *r, int row) int clip_cur = c_to_deblock[k] & (MASK_CUR << ij) ? clip[POS_CUR] : 0; if(c_h_deblock[k] & (MASK_CUR << (ij+2))){ int clip_bot = c_to_deblock[k] & (MASK_CUR << (ij+2)) ? clip[POS_CUR] : 0; - rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8, + rv40_adaptive_loop_filter(&r->rdsp, C+4*s->uvlinesize, s->uvlinesize, i*8, clip_bot, clip_cur, - alpha, beta, betaC, 1, 0); + alpha, beta, betaC, 1, 0, 0); } if((c_v_deblock[k] & (MASK_CUR << ij)) && (i || !(mb_strong[POS_CUR] || mb_strong[POS_LEFT]))){ if(!i) clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0; else clip_left = c_to_deblock[k] & (MASK_CUR << (ij-1)) ? clip[POS_CUR] : 0; - rv40_v_loop_filter(C, s->uvlinesize, j*8, + rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8, clip_cur, clip_left, - alpha, beta, betaC, 1, 0); + alpha, beta, betaC, 1, 0, 1); } if(!j && c_h_deblock[k] & (MASK_CUR << ij) && (mb_strong[POS_CUR] || mb_strong[POS_TOP])){ int clip_top = uvcbp[POS_TOP][k] & (MASK_CUR << (ij+2)) ? clip[POS_TOP] : 0; - rv40_h_loop_filter(C, s->uvlinesize, i*8, + rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, i*8, clip_cur, clip_top, - alpha, beta, betaC, 1, 1); + alpha, beta, betaC, 1, 1, 0); } if(c_v_deblock[k] & (MASK_CUR << ij) && !i && (mb_strong[POS_CUR] || mb_strong[POS_LEFT])){ clip_left = uvcbp[POS_LEFT][k] & (MASK_CUR << (2*j+1)) ? clip[POS_LEFT] : 0; - rv40_v_loop_filter(C, s->uvlinesize, j*8, + rv40_adaptive_loop_filter(&r->rdsp, C, s->uvlinesize, j*8, clip_cur, clip_left, - alpha, beta, betaC, 1, 1); + alpha, beta, betaC, 1, 1, 1); } } }