* RV40 decoder
* Copyright (c) 2007 Konstantin Shishkov
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
* RV40 decoder
*/
+#include "libavutil/imgutils.h"
+
#include "avcodec.h"
-#include "dsputil.h"
#include "mpegvideo.h"
#include "golomb.h"
for(i = 0; i < NUM_PTYPE_VLCS; i++){
ptype_vlc[i].table = &ptype_table[i << PTYPE_VLC_BITS];
ptype_vlc[i].table_allocated = 1 << PTYPE_VLC_BITS;
- init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
- ptype_vlc_bits[i], 1, 1,
- ptype_vlc_codes[i], 1, 1,
- ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_init_vlc_sparse(&ptype_vlc[i], PTYPE_VLC_BITS, PTYPE_VLC_SIZE,
+ ptype_vlc_bits[i], 1, 1,
+ ptype_vlc_codes[i], 1, 1,
+ ptype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
}
for(i = 0; i < NUM_BTYPE_VLCS; i++){
btype_vlc[i].table = &btype_table[i << BTYPE_VLC_BITS];
btype_vlc[i].table_allocated = 1 << BTYPE_VLC_BITS;
- init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
- btype_vlc_bits[i], 1, 1,
- btype_vlc_codes[i], 1, 1,
- btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
+ ff_init_vlc_sparse(&btype_vlc[i], BTYPE_VLC_BITS, BTYPE_VLC_SIZE,
+ btype_vlc_bits[i], 1, 1,
+ btype_vlc_codes[i], 1, 1,
+ btype_vlc_syms, 1, 1, INIT_VLC_USE_NEW_STATIC);
}
}
si->pts = get_bits(gb, 13);
if(!si->type || !get_bits1(gb))
rv40_parse_picture_size(gb, &w, &h);
- if(avcodec_check_dimensions(r->s.avctx, w, h) < 0)
+ if(av_image_check_size(w, h, 0, r->s.avctx) < 0)
return -1;
si->width = w;
si->height = h;
int q, i;
int prev_type = 0;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int blocks[RV34_MB_TYPES] = {0};
- int count = 0;
if(!r->s.mb_skip_run)
r->s.mb_skip_run = svq3_get_ue_golomb(gb) + 1;
if(--r->s.mb_skip_run)
return RV34_MB_SKIP;
- if(r->avail_cache[6-1])
- blocks[r->mb_type[mb_pos - 1]]++;
if(r->avail_cache[6-4]){
+ int blocks[RV34_MB_TYPES] = {0};
+ int count = 0;
+ if(r->avail_cache[6-1])
+ blocks[r->mb_type[mb_pos - 1]]++;
blocks[r->mb_type[mb_pos - s->mb_stride]]++;
if(r->avail_cache[6-2])
blocks[r->mb_type[mb_pos - s->mb_stride + 1]]++;
if(r->avail_cache[6-5])
blocks[r->mb_type[mb_pos - s->mb_stride - 1]]++;
- }
-
- for(i = 0; i < RV34_MB_TYPES; i++){
- if(blocks[i] > count){
- count = blocks[i];
- prev_type = i;
+ for(i = 0; i < RV34_MB_TYPES; i++){
+ if(blocks[i] > count){
+ count = blocks[i];
+ prev_type = i;
+ if(count>1)
+ break;
+ }
}
- }
- if(s->pict_type == FF_P_TYPE){
+ } else if (r->avail_cache[6-1])
+ prev_type = r->mb_type[mb_pos - 1];
+
+ 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)
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,
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
*/
* in addition to the coded ones because because they lie at the edge of
* 8x8 block with different enough motion vectors
*/
- int mvmasks[4];
+ unsigned mvmasks[4];
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))
int c_v_deblock[2], c_h_deblock[2];
int clip_left;
int avail[4];
- int y_to_deblock, c_to_deblock[2];
+ unsigned y_to_deblock;
+ int 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;
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;
y_v_deblock &= ~MASK_Y_LEFT_COL;
if(!row)
y_h_deblock &= ~MASK_Y_TOP_ROW;
- if(row == s->mb_height - 1 || (mb_strong[POS_CUR] || mb_strong[POS_BOTTOM]))
+ if(row == s->mb_height - 1 || (mb_strong[POS_CUR] | mb_strong[POS_BOTTOM]))
y_h_deblock &= ~(MASK_Y_TOP_ROW << 16);
/* Calculating chroma patterns is similar and easier since there is
* no motion vector pattern for them.
c_v_deblock[i] &= ~MASK_C_LEFT_COL;
if(!row)
c_h_deblock[i] &= ~MASK_C_TOP_ROW;
- if(row == s->mb_height - 1 || mb_strong[POS_CUR] || mb_strong[POS_BOTTOM])
+ if(row == s->mb_height - 1 || (mb_strong[POS_CUR] | mb_strong[POS_BOTTOM]))
c_h_deblock[i] &= ~(MASK_C_TOP_ROW << 4);
}
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;
// 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]))){
+ if(y_v_deblock & (MASK_CUR << ij) && (i || !(mb_strong[POS_CUR] | mb_strong[POS_LEFT]))){
if(!i)
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,
+ if(!j && y_h_deblock & (MASK_CUR << i) && (mb_strong[POS_CUR] | mb_strong[POS_TOP])){
+ 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])){
+ 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);
}
}
}
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,
+ 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((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])){
+ 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])){
+ 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);
}
}
}
return 0;
}
-AVCodec 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,
+AVCodec ff_rv40_decoder = {
+ .name = "rv40",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = AV_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 |
+ CODEC_CAP_FRAME_THREADS,
+ .flush = ff_mpeg_flush,
+ .long_name = NULL_IF_CONFIG_SMALL("RealVideo 4.0"),
+ .pix_fmts = ff_pixfmt_list_420,
+ .init_thread_copy = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_init_thread_copy),
+ .update_thread_context = ONLY_IF_THREADS_ENABLED(ff_rv34_decode_update_thread_context),
};
projects / ffmpeg / blobdiff