* RV30/40 decoder common data
* Copyright (c) 2007 Mike Melanson, Konstantin Shishkov
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
{
int flags = modulo_three_table[code];
- decode_coeff( dst+0, (flags >> 6) , 3, gb, vlc, q);
+ decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q);
if(is_block2){
- decode_coeff(dst+8, (flags >> 4) & 3, 2, gb, vlc, q);
- decode_coeff(dst+1, (flags >> 2) & 3, 2, gb, vlc, q);
+ decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q);
+ decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q);
}else{
- decode_coeff(dst+1, (flags >> 4) & 3, 2, gb, vlc, q);
- decode_coeff(dst+8, (flags >> 2) & 3, 2, gb, vlc, q);
+ decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q);
+ decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q);
}
- decode_coeff( dst+9, (flags >> 0) & 3, 2, gb, vlc, q);
+ decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q);
}
/**
{
int flags = modulo_three_table[code];
- decode_coeff( dst+0, (flags >> 6) , 3, gb, vlc, q_dc);
+ decode_coeff( dst+0*4+0, (flags >> 6) , 3, gb, vlc, q_dc);
if(is_block2){
- decode_coeff(dst+8, (flags >> 4) & 3, 2, gb, vlc, q_ac1);
- decode_coeff(dst+1, (flags >> 2) & 3, 2, gb, vlc, q_ac1);
+ decode_coeff(dst+1*4+0, (flags >> 4) & 3, 2, gb, vlc, q_ac1);
+ decode_coeff(dst+0*4+1, (flags >> 2) & 3, 2, gb, vlc, q_ac1);
}else{
- decode_coeff(dst+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1);
- decode_coeff(dst+8, (flags >> 2) & 3, 2, gb, vlc, q_ac1);
+ decode_coeff(dst+0*4+1, (flags >> 4) & 3, 2, gb, vlc, q_ac1);
+ decode_coeff(dst+1*4+0, (flags >> 2) & 3, 2, gb, vlc, q_ac1);
}
- decode_coeff( dst+9, (flags >> 0) & 3, 2, gb, vlc, q_ac2);
+ decode_coeff( dst+1*4+1, (flags >> 0) & 3, 2, gb, vlc, q_ac2);
}
/**
if(pattern & 4){
code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2);
- decode_subblock(dst + 2, code, 0, gb, &rvlc->coefficient, q_ac2);
+ decode_subblock(dst + 4*0+2, code, 0, gb, &rvlc->coefficient, q_ac2);
}
if(pattern & 2){ // Looks like coefficients 1 and 2 are swapped for this block
code = get_vlc2(gb, rvlc->second_pattern[sc].table, 9, 2);
- decode_subblock(dst + 8*2, code, 1, gb, &rvlc->coefficient, q_ac2);
+ decode_subblock(dst + 4*2+0, code, 1, gb, &rvlc->coefficient, q_ac2);
}
if(pattern & 1){
code = get_vlc2(gb, rvlc->third_pattern[sc].table, 9, 2);
- decode_subblock(dst + 8*2+2, code, 0, gb, &rvlc->coefficient, q_ac2);
+ decode_subblock(dst + 4*2+2, code, 0, gb, &rvlc->coefficient, q_ac2);
}
return has_ac || pattern;
}
}
/**
- * Decode macroblock header and return CBP in case of success, -1 otherwise.
+ * Decode intra macroblock header and return CBP in case of success, -1 otherwise.
*/
-static int rv34_decode_mb_header(RV34DecContext *r, int8_t *intra_types)
+static int rv34_decode_intra_mb_header(RV34DecContext *r, int8_t *intra_types)
{
MpegEncContext *s = &r->s;
GetBitContext *gb = &s->gb;
int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
- int i, t;
+ int t;
- if(!r->si.type){
- r->is16 = get_bits1(gb);
- if(!r->is16 && !r->rv30){
+ r->is16 = get_bits1(gb);
+ if(r->is16){
+ s->current_picture_ptr->f.mb_type[mb_pos] = MB_TYPE_INTRA16x16;
+ r->block_type = RV34_MB_TYPE_INTRA16x16;
+ t = get_bits(gb, 2);
+ fill_rectangle(intra_types, 4, 4, r->intra_types_stride, t, sizeof(intra_types[0]));
+ r->luma_vlc = 2;
+ }else{
+ if(!r->rv30){
if(!get_bits1(gb))
av_log(s->avctx, AV_LOG_ERROR, "Need DQUANT\n");
}
- s->current_picture_ptr->f.mb_type[mb_pos] = r->is16 ? MB_TYPE_INTRA16x16 : MB_TYPE_INTRA;
- r->block_type = r->is16 ? RV34_MB_TYPE_INTRA16x16 : RV34_MB_TYPE_INTRA;
- }else{
- r->block_type = r->decode_mb_info(r);
- if(r->block_type == -1)
+ s->current_picture_ptr->f.mb_type[mb_pos] = MB_TYPE_INTRA;
+ r->block_type = RV34_MB_TYPE_INTRA;
+ if(r->decode_intra_types(r, gb, intra_types) < 0)
return -1;
- s->current_picture_ptr->f.mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
- r->mb_type[mb_pos] = r->block_type;
- if(r->block_type == RV34_MB_SKIP){
- if(s->pict_type == AV_PICTURE_TYPE_P)
- r->mb_type[mb_pos] = RV34_MB_P_16x16;
- if(s->pict_type == AV_PICTURE_TYPE_B)
- r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
- }
- r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->f.mb_type[mb_pos]);
- rv34_decode_mv(r, r->block_type);
- if(r->block_type == RV34_MB_SKIP){
- fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
- return 0;
- }
- r->chroma_vlc = 1;
- r->luma_vlc = 0;
+ r->luma_vlc = 1;
}
+
+ r->chroma_vlc = 0;
+ r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 0);
+
+ return rv34_decode_cbp(gb, r->cur_vlcs, r->is16);
+}
+
+/**
+ * Decode inter macroblock header and return CBP in case of success, -1 otherwise.
+ */
+static int rv34_decode_inter_mb_header(RV34DecContext *r, int8_t *intra_types)
+{
+ MpegEncContext *s = &r->s;
+ GetBitContext *gb = &s->gb;
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+ int i, t;
+
+ r->block_type = r->decode_mb_info(r);
+ if(r->block_type == -1)
+ return -1;
+ s->current_picture_ptr->f.mb_type[mb_pos] = rv34_mb_type_to_lavc[r->block_type];
+ r->mb_type[mb_pos] = r->block_type;
+ if(r->block_type == RV34_MB_SKIP){
+ if(s->pict_type == AV_PICTURE_TYPE_P)
+ r->mb_type[mb_pos] = RV34_MB_P_16x16;
+ if(s->pict_type == AV_PICTURE_TYPE_B)
+ r->mb_type[mb_pos] = RV34_MB_B_DIRECT;
+ }
+ r->is16 = !!IS_INTRA16x16(s->current_picture_ptr->f.mb_type[mb_pos]);
+ rv34_decode_mv(r, r->block_type);
+ if(r->block_type == RV34_MB_SKIP){
+ fill_rectangle(intra_types, 4, 4, r->intra_types_stride, 0, sizeof(intra_types[0]));
+ return 0;
+ }
+ r->chroma_vlc = 1;
+ r->luma_vlc = 0;
+
if(IS_INTRA(s->current_picture_ptr->f.mb_type[mb_pos])){
if(r->is16){
t = get_bits(gb, 2);
if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME)) {
/* wait for the referenced mb row to be finished */
- int mb_row = FFMIN(s->mb_height - 1, s->mb_y + ((yoff + my + 21) >> 4));
+ int mb_row = FFMIN(s->mb_height - 1,
+ s->mb_y + ((yoff + my + 5 + 8 * height) >> 4));
AVFrame *f = dir ? &s->next_picture_ptr->f : &s->last_picture_ptr->f;
ff_thread_await_progress(f, mb_row, 0);
}
//surprisingly, it uses motion scheme from next reference frame
/* wait for the current mb row to be finished */
if (HAVE_THREADS && (s->avctx->active_thread_type & FF_THREAD_FRAME))
- ff_thread_await_progress(&s->next_picture_ptr->f, s->mb_y - 1, 0);
+ ff_thread_await_progress(&s->next_picture_ptr->f, FFMAX(0, s->mb_y-1), 0);
next_bt = s->next_picture_ptr->f.mb_type[s->mb_x + s->mb_y * s->mb_stride];
if(IS_INTRA(next_bt) || IS_SKIP(next_bt)){
r->h.pred4x4[itype](dst, prev, stride);
}
-/** add_pixels_clamped for 4x4 block */
-static void rv34_add_4x4_block(uint8_t *dst, int stride, DCTELEM block[64], int off)
-{
- int x, y;
- for(y = 0; y < 4; y++)
- for(x = 0; x < 4; x++)
- dst[x + y*stride] = av_clip_uint8(dst[x + y*stride] + block[off + x+y*8]);
-}
-
static inline int adjust_pred16(int itype, int up, int left)
{
if(!up && !left)
return itype;
}
-static void rv34_output_macroblock(RV34DecContext *r, int8_t *intra_types, int cbp, int is16)
+static inline void rv34_process_block(RV34DecContext *r,
+ uint8_t *pdst, int stride,
+ int fc, int sc, int q_dc, int q_ac)
{
MpegEncContext *s = &r->s;
- DSPContext *dsp = &s->dsp;
- int i, j;
- uint8_t *Y, *U, *V;
- int itype;
- int avail[6*8] = {0};
- int idx;
+ DCTELEM *ptr = s->block[0];
+ int has_ac = rv34_decode_block(ptr, &s->gb, r->cur_vlcs,
+ fc, sc, q_dc, q_ac, q_ac);
+ if(has_ac){
+ r->rdsp.rv34_idct_add(pdst, stride, ptr);
+ }else{
+ r->rdsp.rv34_idct_dc_add(pdst, stride, ptr[0]);
+ ptr[0] = 0;
+ }
+}
+
+static void rv34_output_i16x16(RV34DecContext *r, int8_t *intra_types, int cbp)
+{
+ LOCAL_ALIGNED_16(DCTELEM, block16, [16]);
+ MpegEncContext *s = &r->s;
+ GetBitContext *gb = &s->gb;
+ int q_dc = rv34_qscale_tab[ r->luma_dc_quant_i[s->qscale] ],
+ q_ac = rv34_qscale_tab[s->qscale];
+ uint8_t *dst = s->dest[0];
+ DCTELEM *ptr = s->block[0];
+ int avail[6*8] = {0};
+ int i, j, itype, has_ac;
+
+ memset(block16, 0, 16 * sizeof(*block16));
// Set neighbour information.
if(r->avail_cache[1])
if(r->avail_cache[9])
avail[24] = avail[32] = 1;
- Y = s->dest[0];
- U = s->dest[1];
- V = s->dest[2];
- if(!is16){
- for(j = 0; j < 4; j++){
- idx = 9 + j*8;
- for(i = 0; i < 4; i++, cbp >>= 1, Y += 4, idx++){
- rv34_pred_4x4_block(r, Y, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]);
- avail[idx] = 1;
- if(cbp & 1)
- rv34_add_4x4_block(Y, s->linesize, s->block[(i>>1)+(j&2)], (i&1)*4+(j&1)*32);
- }
- Y += s->linesize * 4 - 4*4;
- intra_types += r->intra_types_stride;
+ has_ac = rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac);
+ if(has_ac)
+ r->rdsp.rv34_inv_transform(block16);
+ else
+ r->rdsp.rv34_inv_transform_dc(block16);
+
+ itype = ittrans16[intra_types[0]];
+ itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
+ r->h.pred16x16[itype](dst, s->linesize);
+
+ for(j = 0; j < 4; j++){
+ for(i = 0; i < 4; i++, cbp >>= 1){
+ int dc = block16[i + j*4];
+
+ if(cbp & 1){
+ has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac);
+ }else
+ has_ac = 0;
+
+ if(has_ac){
+ ptr[0] = dc;
+ r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr);
+ }else
+ r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc);
}
- intra_types -= r->intra_types_stride * 4;
- fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4);
- for(j = 0; j < 2; j++){
- idx = 6 + j*4;
- for(i = 0; i < 2; i++, cbp >>= 1, idx++){
- rv34_pred_4x4_block(r, U + i*4 + j*4*s->uvlinesize, s->uvlinesize, ittrans[intra_types[i*2+j*2*r->intra_types_stride]], r->avail_cache[idx-4], r->avail_cache[idx-1], !i && !j, r->avail_cache[idx-3]);
- rv34_pred_4x4_block(r, V + i*4 + j*4*s->uvlinesize, s->uvlinesize, ittrans[intra_types[i*2+j*2*r->intra_types_stride]], r->avail_cache[idx-4], r->avail_cache[idx-1], !i && !j, r->avail_cache[idx-3]);
- r->avail_cache[idx] = 1;
- if(cbp & 0x01)
- rv34_add_4x4_block(U + i*4 + j*4*s->uvlinesize, s->uvlinesize, s->block[4], i*4+j*32);
- if(cbp & 0x10)
- rv34_add_4x4_block(V + i*4 + j*4*s->uvlinesize, s->uvlinesize, s->block[5], i*4+j*32);
- }
+
+ dst += 4*s->linesize;
+ }
+
+ itype = ittrans16[intra_types[0]];
+ if(itype == PLANE_PRED8x8) itype = DC_PRED8x8;
+ itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
+
+ q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
+ q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
+
+ for(j = 1; j < 3; j++){
+ dst = s->dest[j];
+ r->h.pred8x8[itype](dst, s->uvlinesize);
+ for(i = 0; i < 4; i++, cbp >>= 1){
+ uint8_t *pdst;
+ if(!(cbp & 1)) continue;
+ pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize;
+
+ rv34_process_block(r, pdst, s->uvlinesize,
+ r->chroma_vlc, 1, q_dc, q_ac);
}
- }else{
- itype = ittrans16[intra_types[0]];
- itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
- r->h.pred16x16[itype](Y, s->linesize);
- dsp->add_pixels_clamped(s->block[0], Y, s->linesize);
- dsp->add_pixels_clamped(s->block[1], Y + 8, s->linesize);
- Y += s->linesize * 8;
- dsp->add_pixels_clamped(s->block[2], Y, s->linesize);
- dsp->add_pixels_clamped(s->block[3], Y + 8, s->linesize);
-
- itype = ittrans16[intra_types[0]];
- if(itype == PLANE_PRED8x8) itype = DC_PRED8x8;
- itype = adjust_pred16(itype, r->avail_cache[6-4], r->avail_cache[6-1]);
- r->h.pred8x8[itype](U, s->uvlinesize);
- dsp->add_pixels_clamped(s->block[4], U, s->uvlinesize);
- r->h.pred8x8[itype](V, s->uvlinesize);
- dsp->add_pixels_clamped(s->block[5], V, s->uvlinesize);
}
}
-/**
- * mask for retrieving all bits in coded block pattern
- * corresponding to one 8x8 block
- */
-#define LUMA_CBP_BLOCK_MASK 0x33
+static void rv34_output_intra(RV34DecContext *r, int8_t *intra_types, int cbp)
+{
+ MpegEncContext *s = &r->s;
+ uint8_t *dst = s->dest[0];
+ int avail[6*8] = {0};
+ int i, j, k;
+ int idx, q_ac, q_dc;
-#define U_CBP_MASK 0x0F0000
-#define V_CBP_MASK 0xF00000
+ // Set neighbour information.
+ if(r->avail_cache[1])
+ avail[0] = 1;
+ if(r->avail_cache[2])
+ avail[1] = avail[2] = 1;
+ if(r->avail_cache[3])
+ avail[3] = avail[4] = 1;
+ if(r->avail_cache[4])
+ avail[5] = 1;
+ if(r->avail_cache[5])
+ avail[8] = avail[16] = 1;
+ if(r->avail_cache[9])
+ avail[24] = avail[32] = 1;
-/** @} */ // recons group
+ q_ac = rv34_qscale_tab[s->qscale];
+ for(j = 0; j < 4; j++){
+ idx = 9 + j*8;
+ for(i = 0; i < 4; i++, cbp >>= 1, dst += 4, idx++){
+ rv34_pred_4x4_block(r, dst, s->linesize, ittrans[intra_types[i]], avail[idx-8], avail[idx-1], avail[idx+7], avail[idx-7]);
+ avail[idx] = 1;
+ if(!(cbp & 1)) continue;
+
+ rv34_process_block(r, dst, s->linesize,
+ r->luma_vlc, 0, q_ac, q_ac);
+ }
+ dst += s->linesize * 4 - 4*4;
+ intra_types += r->intra_types_stride;
+ }
+ intra_types -= r->intra_types_stride * 4;
-static void rv34_apply_differences(RV34DecContext *r, int cbp)
-{
- static const int shifts[4] = { 0, 2, 8, 10 };
- MpegEncContext *s = &r->s;
- int i;
+ q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
+ q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
- for(i = 0; i < 4; i++)
- if((cbp & (LUMA_CBP_BLOCK_MASK << shifts[i])) || r->block_type == RV34_MB_P_MIX16x16)
- s->dsp.add_pixels_clamped(s->block[i], s->dest[0] + (i & 1)*8 + (i&2)*4*s->linesize, s->linesize);
- if(cbp & U_CBP_MASK)
- s->dsp.add_pixels_clamped(s->block[4], s->dest[1], s->uvlinesize);
- if(cbp & V_CBP_MASK)
- s->dsp.add_pixels_clamped(s->block[5], s->dest[2], s->uvlinesize);
+ for(k = 0; k < 2; k++){
+ dst = s->dest[1+k];
+ fill_rectangle(r->avail_cache + 6, 2, 2, 4, 0, 4);
+
+ for(j = 0; j < 2; j++){
+ int* acache = r->avail_cache + 6 + j*4;
+ for(i = 0; i < 2; i++, cbp >>= 1, acache++){
+ int itype = ittrans[intra_types[i*2+j*2*r->intra_types_stride]];
+ rv34_pred_4x4_block(r, dst+4*i, s->uvlinesize, itype, acache[-4], acache[-1], !i && !j, acache[-3]);
+ acache[0] = 1;
+
+ if(!(cbp&1)) continue;
+
+ rv34_process_block(r, dst + 4*i, s->uvlinesize,
+ r->chroma_vlc, 1, q_dc, q_ac);
+ }
+
+ dst += 4*s->uvlinesize;
+ }
+ }
}
static int is_mv_diff_gt_3(int16_t (*motion_val)[2], int step)
return hmvmask | vmvmask;
}
-static int rv34_decode_macroblock(RV34DecContext *r, int8_t *intra_types)
+static int rv34_decode_inter_macroblock(RV34DecContext *r, int8_t *intra_types)
{
- MpegEncContext *s = &r->s;
- GetBitContext *gb = &s->gb;
+ MpegEncContext *s = &r->s;
+ GetBitContext *gb = &s->gb;
+ uint8_t *dst = s->dest[0];
+ DCTELEM *ptr = s->block[0];
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
int cbp, cbp2;
int q_dc, q_ac, has_ac;
- int i, blknum, blkoff;
- LOCAL_ALIGNED_16(DCTELEM, block16, [64]);
- int luma_dc_quant;
+ int i, j;
int dist;
- int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
// Calculate which neighbours are available. Maybe it's worth optimizing too.
memset(r->avail_cache, 0, sizeof(r->avail_cache));
r->avail_cache[1] = s->current_picture_ptr->f.mb_type[mb_pos - s->mb_stride - 1];
s->qscale = r->si.quant;
- cbp = cbp2 = rv34_decode_mb_header(r, intra_types);
+ cbp = cbp2 = rv34_decode_inter_mb_header(r, intra_types);
r->cbp_luma [mb_pos] = cbp;
r->cbp_chroma[mb_pos] = cbp >> 16;
- if(s->pict_type == AV_PICTURE_TYPE_I)
- r->deblock_coefs[mb_pos] = 0xFFFF;
- else
- r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos];
+ r->deblock_coefs[mb_pos] = rv34_set_deblock_coef(r) | r->cbp_luma[mb_pos];
s->current_picture_ptr->f.qscale_table[mb_pos] = s->qscale;
if(cbp == -1)
return -1;
- luma_dc_quant = r->block_type == RV34_MB_P_MIX16x16 ? r->luma_dc_quant_p[s->qscale] : r->luma_dc_quant_i[s->qscale];
+ if (IS_INTRA(s->current_picture_ptr->f.mb_type[mb_pos])){
+ if(r->is16) rv34_output_i16x16(r, intra_types, cbp);
+ else rv34_output_intra(r, intra_types, cbp);
+ return 0;
+ }
+
if(r->is16){
- q_dc = rv34_qscale_tab[luma_dc_quant];
+ // Only for RV34_MB_P_MIX16x16
+ LOCAL_ALIGNED_16(DCTELEM, block16, [16]);
+ memset(block16, 0, 16 * sizeof(*block16));
+ q_dc = rv34_qscale_tab[ r->luma_dc_quant_p[s->qscale] ];
q_ac = rv34_qscale_tab[s->qscale];
- s->dsp.clear_block(block16);
if (rv34_decode_block(block16, gb, r->cur_vlcs, 3, 0, q_dc, q_dc, q_ac))
- r->rdsp.rv34_inv_transform_tab[1](block16);
+ r->rdsp.rv34_inv_transform(block16);
else
- r->rdsp.rv34_inv_transform_dc_tab[1](block16);
- }
+ r->rdsp.rv34_inv_transform_dc(block16);
+
+ q_ac = rv34_qscale_tab[s->qscale];
+
+ for(j = 0; j < 4; j++){
+ for(i = 0; i < 4; i++, cbp >>= 1){
+ int dc = block16[i + j*4];
+
+ if(cbp & 1){
+ has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac);
+ }else
+ has_ac = 0;
+
+ if(has_ac){
+ ptr[0] = dc;
+ r->rdsp.rv34_idct_add(dst+4*i, s->linesize, ptr);
+ }else
+ r->rdsp.rv34_idct_dc_add(dst+4*i, s->linesize, dc);
+ }
+
+ dst += 4*s->linesize;
+ }
- q_ac = rv34_qscale_tab[s->qscale];
- for(i = 0; i < 16; i++, cbp >>= 1){
- DCTELEM *ptr;
- if(!r->is16 && !(cbp & 1)) continue;
- blknum = ((i & 2) >> 1) + ((i & 8) >> 2);
- blkoff = ((i & 1) << 2) + ((i & 4) << 3);
- ptr = s->block[blknum] + blkoff;
- if(cbp & 1)
- has_ac = rv34_decode_block(ptr, gb, r->cur_vlcs, r->luma_vlc, 0, q_ac, q_ac, q_ac);
- else
- has_ac = 0;
- if(r->is16) //FIXME: optimize
- ptr[0] = block16[(i & 3) | ((i & 0xC) << 1)];
- if(has_ac)
- r->rdsp.rv34_inv_transform_tab[0](ptr);
- else
- r->rdsp.rv34_inv_transform_dc_tab[0](ptr);
- }
- if(r->block_type == RV34_MB_P_MIX16x16)
r->cur_vlcs = choose_vlc_set(r->si.quant, r->si.vlc_set, 1);
+ }else{
+ q_ac = rv34_qscale_tab[s->qscale];
+
+ for(j = 0; j < 4; j++){
+ for(i = 0; i < 4; i++, cbp >>= 1){
+ if(!(cbp & 1)) continue;
+
+ rv34_process_block(r, dst + 4*i, s->linesize,
+ r->luma_vlc, 0, q_ac, q_ac);
+ }
+ dst += 4*s->linesize;
+ }
+ }
+
q_dc = rv34_qscale_tab[rv34_chroma_quant[1][s->qscale]];
q_ac = rv34_qscale_tab[rv34_chroma_quant[0][s->qscale]];
- for(; i < 24; i++, cbp >>= 1){
- DCTELEM *ptr;
- if(!(cbp & 1)) continue;
- blknum = ((i & 4) >> 2) + 4;
- blkoff = ((i & 1) << 2) + ((i & 2) << 4);
- ptr = s->block[blknum] + blkoff;
- if (rv34_decode_block(ptr, gb, r->cur_vlcs, r->chroma_vlc, 1, q_dc, q_ac, q_ac))
- r->rdsp.rv34_inv_transform_tab[0](ptr);
- else
- r->rdsp.rv34_inv_transform_dc_tab[0](ptr);
+
+ for(j = 1; j < 3; j++){
+ dst = s->dest[j];
+ for(i = 0; i < 4; i++, cbp >>= 1){
+ uint8_t *pdst;
+ if(!(cbp & 1)) continue;
+ pdst = dst + (i&1)*4 + (i&2)*2*s->uvlinesize;
+
+ rv34_process_block(r, pdst, s->uvlinesize,
+ r->chroma_vlc, 1, q_dc, q_ac);
+ }
}
- if (IS_INTRA(s->current_picture_ptr->f.mb_type[mb_pos]))
- rv34_output_macroblock(r, intra_types, cbp2, r->is16);
- else
- rv34_apply_differences(r, cbp2);
return 0;
}
+static int rv34_decode_intra_macroblock(RV34DecContext *r, int8_t *intra_types)
+{
+ MpegEncContext *s = &r->s;
+ int cbp, dist;
+ int mb_pos = s->mb_x + s->mb_y * s->mb_stride;
+
+ // Calculate which neighbours are available. Maybe it's worth optimizing too.
+ memset(r->avail_cache, 0, sizeof(r->avail_cache));
+ fill_rectangle(r->avail_cache + 6, 2, 2, 4, 1, 4);
+ dist = (s->mb_x - s->resync_mb_x) + (s->mb_y - s->resync_mb_y) * s->mb_width;
+ if(s->mb_x && dist)
+ r->avail_cache[5] =
+ r->avail_cache[9] = s->current_picture_ptr->f.mb_type[mb_pos - 1];
+ if(dist >= s->mb_width)
+ r->avail_cache[2] =
+ r->avail_cache[3] = s->current_picture_ptr->f.mb_type[mb_pos - s->mb_stride];
+ if(((s->mb_x+1) < s->mb_width) && dist >= s->mb_width - 1)
+ r->avail_cache[4] = s->current_picture_ptr->f.mb_type[mb_pos - s->mb_stride + 1];
+ if(s->mb_x && dist > s->mb_width)
+ r->avail_cache[1] = s->current_picture_ptr->f.mb_type[mb_pos - s->mb_stride - 1];
+
+ s->qscale = r->si.quant;
+ cbp = rv34_decode_intra_mb_header(r, intra_types);
+ r->cbp_luma [mb_pos] = cbp;
+ r->cbp_chroma[mb_pos] = cbp >> 16;
+ r->deblock_coefs[mb_pos] = 0xFFFF;
+ s->current_picture_ptr->f.qscale_table[mb_pos] = s->qscale;
+
+ if(cbp == -1)
+ return -1;
+
+ if(r->is16){
+ rv34_output_i16x16(r, intra_types, cbp);
+ return 0;
+ }
+
+ rv34_output_intra(r, intra_types, cbp);
+ return 0;
+}
+
static int check_slice_end(RV34DecContext *r, MpegEncContext *s)
{
int bits;
av_log(s->avctx, AV_LOG_ERROR, "Slice type mismatch\n");
return AVERROR_INVALIDDATA;
}
+ if (s->width != r->si.width || s->height != r->si.height) {
+ av_log(s->avctx, AV_LOG_ERROR, "Size mismatch\n");
+ return AVERROR_INVALIDDATA;
+ }
}
r->si.end = end;
ff_init_block_index(s);
while(!check_slice_end(r, s)) {
ff_update_block_index(s);
- s->dsp.clear_blocks(s->block[0]);
- if(rv34_decode_macroblock(r, r->intra_types + s->mb_x * 4 + 4) < 0){
+ if(r->si.type)
+ res = rv34_decode_inter_macroblock(r, r->intra_types + s->mb_x * 4 + 4);
+ else
+ res = rv34_decode_intra_macroblock(r, r->intra_types + s->mb_x * 4 + 4);
+ if(res < 0){
ff_er_add_slice(s, s->resync_mb_x, s->resync_mb_y, s->mb_x-1, s->mb_y, ER_MB_ERROR);
return -1;
}
projects / ffmpeg / blobdiff