Merge remote-tracking branch 'qatar/master'
[ffmpeg.git] / libavcodec / rv40.c
index 5d4aafc..8dd78f1 100644 (file)
@@ -231,8 +231,11 @@ static int rv40_decode_mb_info(RV34DecContext *r)
     int blocks[RV34_MB_TYPES] = {0};
     int count = 0;
 
-    if(!r->s.mb_skip_run)
+    if(!r->s.mb_skip_run) {
         r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
+        if(r->s.mb_skip_run > (unsigned)s->mb_num)
+            return -1;
+    }
 
     if(--r->s.mb_skip_run)
          return RV34_MB_SKIP;
@@ -253,7 +256,7 @@ static int rv40_decode_mb_info(RV34DecContext *r)
             prev_type = i;
         }
     }
-    if(s->pict_type == FF_P_TYPE){
+    if(s->pict_type == AV_PICTURE_TYPE_P){
         prev_type = block_num_to_ptype_vlc_num[prev_type];
         q = get_vlc2(gb, ptype_vlc[prev_type].table, PTYPE_VLC_BITS, 1);
         if(q < PBTYPE_ESCAPE)
@@ -271,148 +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,
@@ -475,7 +336,7 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
 
     mb_pos = row * s->mb_stride;
     for(mb_x = 0; mb_x < s->mb_width; mb_x++, mb_pos++){
-        int mbtype = s->current_picture_ptr->mb_type[mb_pos];
+        int mbtype = s->current_picture_ptr->f.mb_type[mb_pos];
         if(IS_INTRA(mbtype) || IS_SEPARATE_DC(mbtype))
             r->cbp_luma  [mb_pos] = r->deblock_coefs[mb_pos] = 0xFFFF;
         if(IS_INTRA(mbtype))
@@ -489,7 +350,7 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
         int avail[4];
         int y_to_deblock, c_to_deblock[2];
 
-        q = s->current_picture_ptr->qscale_table[mb_pos];
+        q = s->current_picture_ptr->f.qscale_table[mb_pos];
         alpha = rv40_alpha_tab[q];
         beta  = rv40_beta_tab [q];
         betaY = betaC = beta * 3;
@@ -504,7 +365,7 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
             if(avail[i]){
                 int pos = mb_pos + neighbour_offs_x[i] + neighbour_offs_y[i]*s->mb_stride;
                 mvmasks[i] = r->deblock_coefs[pos];
-                mbtype [i] = s->current_picture_ptr->mb_type[pos];
+                mbtype [i] = s->current_picture_ptr->f.mb_type[pos];
                 cbp    [i] = r->cbp_luma[pos];
                 uvcbp[i][0] = r->cbp_chroma[pos] & 0xF;
                 uvcbp[i][1] = r->cbp_chroma[pos] >> 4;
@@ -563,7 +424,7 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
         }
 
         for(j = 0; j < 16; j += 4){
-            Y = s->current_picture_ptr->data[0] + mb_x*16 + (row*16 + j) * s->linesize;
+            Y = s->current_picture_ptr->f.data[0] + mb_x*16 + (row*16 + j) * s->linesize;
             for(i = 0; i < 4; i++, Y += 4){
                 int ij = i + j;
                 int clip_cur = y_to_deblock & (MASK_CUR << ij) ? clip[POS_CUR] : 0;
@@ -572,7 +433,7 @@ 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,
+                    r->rdsp.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);
@@ -583,14 +444,14 @@ 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,
+                    r->rdsp.rv40_v_loop_filter(Y, s->linesize, dither,
                                        clip_cur,
                                        clip_left,
                                        alpha, beta, betaY, 0, 0);
                 }
                 // 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,
+                    r->rdsp.rv40_h_loop_filter(Y, s->linesize, dither,
                                        clip_cur,
                                        mvmasks[POS_TOP] & (MASK_TOP << i) ? clip[POS_TOP] : 0,
                                        alpha, beta, betaY, 0, 1);
@@ -598,7 +459,7 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
                 // 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,
+                    r->rdsp.rv40_v_loop_filter(Y, s->linesize, dither,
                                        clip_cur,
                                        clip_left,
                                        alpha, beta, betaY, 0, 1);
@@ -607,13 +468,13 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
         }
         for(k = 0; k < 2; k++){
             for(j = 0; j < 2; j++){
-                C = s->current_picture_ptr->data[k+1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
+                C = s->current_picture_ptr->f.data[k + 1] + mb_x*8 + (row*8 + j*4) * s->uvlinesize;
                 for(i = 0; i < 2; i++, C += 4){
                     int ij = i + j*2;
                     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,
+                        r->rdsp.rv40_h_loop_filter(C+4*s->uvlinesize, s->uvlinesize, i*8,
                                            clip_bot,
                                            clip_cur,
                                            alpha, beta, betaC, 1, 0);
@@ -623,21 +484,21 @@ static void rv40_loop_filter(RV34DecContext *r, int row)
                             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,
+                        r->rdsp.rv40_v_loop_filter(C, s->uvlinesize, j*8,
                                            clip_cur,
                                            clip_left,
                                            alpha, beta, betaC, 1, 0);
                     }
                     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,
+                        r->rdsp.rv40_h_loop_filter(C, s->uvlinesize, i*8,
                                            clip_cur,
                                            clip_top,
                                            alpha, beta, betaC, 1, 1);
                     }
                     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,
+                        r->rdsp.rv40_v_loop_filter(C, s->uvlinesize, j*8,
                                            clip_cur,
                                            clip_left,
                                            alpha, beta, betaC, 1, 1);
@@ -669,16 +530,15 @@ static av_cold int rv40_decode_init(AVCodecContext *avctx)
 }
 
 AVCodec ff_rv40_decoder = {
-    "rv40",
-    AVMEDIA_TYPE_VIDEO,
-    CODEC_ID_RV40,
-    sizeof(RV34DecContext),
-    rv40_decode_init,
-    NULL,
-    ff_rv34_decode_end,
-    ff_rv34_decode_frame,
-    CODEC_CAP_DR1 | CODEC_CAP_DELAY,
-    .flush = ff_mpeg_flush,
-    .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
-    .pix_fmts= ff_pixfmt_list_420,
+    .name           = "rv40",
+    .type           = AVMEDIA_TYPE_VIDEO,
+    .id             = CODEC_ID_RV40,
+    .priv_data_size = sizeof(RV34DecContext),
+    .init           = rv40_decode_init,
+    .close          = ff_rv34_decode_end,
+    .decode         = ff_rv34_decode_frame,
+    .capabilities   = CODEC_CAP_DR1 | CODEC_CAP_DELAY,
+    .flush          = ff_mpeg_flush,
+    .long_name      = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
+    .pix_fmts       = ff_pixfmt_list_420,
 };