| /* |
| * Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of FFmpeg. |
| * |
| * 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. |
| * |
| * 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 FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavutil/intmath.h" |
| #include "libavutil/log.h" |
| #include "libavutil/opt.h" |
| #include "avcodec.h" |
| #include "dsputil.h" |
| #include "dwt.h" |
| #include "snow.h" |
| #include "snowdata.h" |
| |
| #include "rangecoder.h" |
| #include "mathops.h" |
| #include "h263.h" |
| |
| #undef NDEBUG |
| #include <assert.h> |
| |
| |
| void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, |
| int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){ |
| int y, x; |
| IDWTELEM * dst; |
| for(y=0; y<b_h; y++){ |
| //FIXME ugly misuse of obmc_stride |
| const uint8_t *obmc1= obmc + y*obmc_stride; |
| const uint8_t *obmc2= obmc1+ (obmc_stride>>1); |
| const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); |
| const uint8_t *obmc4= obmc3+ (obmc_stride>>1); |
| dst = slice_buffer_get_line(sb, src_y + y); |
| for(x=0; x<b_w; x++){ |
| int v= obmc1[x] * block[3][x + y*src_stride] |
| +obmc2[x] * block[2][x + y*src_stride] |
| +obmc3[x] * block[1][x + y*src_stride] |
| +obmc4[x] * block[0][x + y*src_stride]; |
| |
| v <<= 8 - LOG2_OBMC_MAX; |
| if(FRAC_BITS != 8){ |
| v >>= 8 - FRAC_BITS; |
| } |
| if(add){ |
| v += dst[x + src_x]; |
| v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; |
| if(v&(~255)) v= ~(v>>31); |
| dst8[x + y*src_stride] = v; |
| }else{ |
| dst[x + src_x] -= v; |
| } |
| } |
| } |
| } |
| |
| void ff_snow_reset_contexts(SnowContext *s){ //FIXME better initial contexts |
| int plane_index, level, orientation; |
| |
| for(plane_index=0; plane_index<3; plane_index++){ |
| for(level=0; level<MAX_DECOMPOSITIONS; level++){ |
| for(orientation=level ? 1:0; orientation<4; orientation++){ |
| memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state)); |
| } |
| } |
| } |
| memset(s->header_state, MID_STATE, sizeof(s->header_state)); |
| memset(s->block_state, MID_STATE, sizeof(s->block_state)); |
| } |
| |
| int ff_snow_alloc_blocks(SnowContext *s){ |
| int w= -((-s->avctx->width )>>LOG2_MB_SIZE); |
| int h= -((-s->avctx->height)>>LOG2_MB_SIZE); |
| |
| s->b_width = w; |
| s->b_height= h; |
| |
| av_free(s->block); |
| s->block= av_mallocz(w * h * sizeof(BlockNode) << (s->block_max_depth*2)); |
| return 0; |
| } |
| |
| static void init_qexp(void){ |
| int i; |
| double v=128; |
| |
| for(i=0; i<QROOT; i++){ |
| qexp[i]= lrintf(v); |
| v *= pow(2, 1.0 / QROOT); |
| } |
| } |
| static void mc_block(Plane *p, uint8_t *dst, const uint8_t *src, int stride, int b_w, int b_h, int dx, int dy){ |
| static const uint8_t weight[64]={ |
| 8,7,6,5,4,3,2,1, |
| 7,7,0,0,0,0,0,1, |
| 6,0,6,0,0,0,2,0, |
| 5,0,0,5,0,3,0,0, |
| 4,0,0,0,4,0,0,0, |
| 3,0,0,5,0,3,0,0, |
| 2,0,6,0,0,0,2,0, |
| 1,7,0,0,0,0,0,1, |
| }; |
| |
| static const uint8_t brane[256]={ |
| 0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12, |
| 0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52, |
| 0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc, |
| 0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc, |
| 0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc, |
| 0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc, |
| 0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc, |
| 0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16, |
| 0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56, |
| 0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96, |
| 0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc, |
| 0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc, |
| 0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc, |
| 0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc, |
| 0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc, |
| 0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A, |
| }; |
| |
| static const uint8_t needs[16]={ |
| 0,1,0,0, |
| 2,4,2,0, |
| 0,1,0,0, |
| 15 |
| }; |
| |
| int x, y, b, r, l; |
| int16_t tmpIt [64*(32+HTAPS_MAX)]; |
| uint8_t tmp2t[3][stride*(32+HTAPS_MAX)]; |
| int16_t *tmpI= tmpIt; |
| uint8_t *tmp2= tmp2t[0]; |
| const uint8_t *hpel[11]; |
| assert(dx<16 && dy<16); |
| r= brane[dx + 16*dy]&15; |
| l= brane[dx + 16*dy]>>4; |
| |
| b= needs[l] | needs[r]; |
| if(p && !p->diag_mc) |
| b= 15; |
| |
| if(b&5){ |
| for(y=0; y < b_h+HTAPS_MAX-1; y++){ |
| for(x=0; x < b_w; x++){ |
| int a_1=src[x + HTAPS_MAX/2-4]; |
| int a0= src[x + HTAPS_MAX/2-3]; |
| int a1= src[x + HTAPS_MAX/2-2]; |
| int a2= src[x + HTAPS_MAX/2-1]; |
| int a3= src[x + HTAPS_MAX/2+0]; |
| int a4= src[x + HTAPS_MAX/2+1]; |
| int a5= src[x + HTAPS_MAX/2+2]; |
| int a6= src[x + HTAPS_MAX/2+3]; |
| int am=0; |
| if(!p || p->fast_mc){ |
| am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5); |
| tmpI[x]= am; |
| am= (am+16)>>5; |
| }else{ |
| am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6); |
| tmpI[x]= am; |
| am= (am+32)>>6; |
| } |
| |
| if(am&(~255)) am= ~(am>>31); |
| tmp2[x]= am; |
| } |
| tmpI+= 64; |
| tmp2+= stride; |
| src += stride; |
| } |
| src -= stride*y; |
| } |
| src += HTAPS_MAX/2 - 1; |
| tmp2= tmp2t[1]; |
| |
| if(b&2){ |
| for(y=0; y < b_h; y++){ |
| for(x=0; x < b_w+1; x++){ |
| int a_1=src[x + (HTAPS_MAX/2-4)*stride]; |
| int a0= src[x + (HTAPS_MAX/2-3)*stride]; |
| int a1= src[x + (HTAPS_MAX/2-2)*stride]; |
| int a2= src[x + (HTAPS_MAX/2-1)*stride]; |
| int a3= src[x + (HTAPS_MAX/2+0)*stride]; |
| int a4= src[x + (HTAPS_MAX/2+1)*stride]; |
| int a5= src[x + (HTAPS_MAX/2+2)*stride]; |
| int a6= src[x + (HTAPS_MAX/2+3)*stride]; |
| int am=0; |
| if(!p || p->fast_mc) |
| am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5; |
| else |
| am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6; |
| |
| if(am&(~255)) am= ~(am>>31); |
| tmp2[x]= am; |
| } |
| src += stride; |
| tmp2+= stride; |
| } |
| src -= stride*y; |
| } |
| src += stride*(HTAPS_MAX/2 - 1); |
| tmp2= tmp2t[2]; |
| tmpI= tmpIt; |
| if(b&4){ |
| for(y=0; y < b_h; y++){ |
| for(x=0; x < b_w; x++){ |
| int a_1=tmpI[x + (HTAPS_MAX/2-4)*64]; |
| int a0= tmpI[x + (HTAPS_MAX/2-3)*64]; |
| int a1= tmpI[x + (HTAPS_MAX/2-2)*64]; |
| int a2= tmpI[x + (HTAPS_MAX/2-1)*64]; |
| int a3= tmpI[x + (HTAPS_MAX/2+0)*64]; |
| int a4= tmpI[x + (HTAPS_MAX/2+1)*64]; |
| int a5= tmpI[x + (HTAPS_MAX/2+2)*64]; |
| int a6= tmpI[x + (HTAPS_MAX/2+3)*64]; |
| int am=0; |
| if(!p || p->fast_mc) |
| am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10; |
| else |
| am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12; |
| if(am&(~255)) am= ~(am>>31); |
| tmp2[x]= am; |
| } |
| tmpI+= 64; |
| tmp2+= stride; |
| } |
| } |
| |
| hpel[ 0]= src; |
| hpel[ 1]= tmp2t[0] + stride*(HTAPS_MAX/2-1); |
| hpel[ 2]= src + 1; |
| |
| hpel[ 4]= tmp2t[1]; |
| hpel[ 5]= tmp2t[2]; |
| hpel[ 6]= tmp2t[1] + 1; |
| |
| hpel[ 8]= src + stride; |
| hpel[ 9]= hpel[1] + stride; |
| hpel[10]= hpel[8] + 1; |
| |
| if(b==15){ |
| const uint8_t *src1= hpel[dx/8 + dy/8*4 ]; |
| const uint8_t *src2= hpel[dx/8 + dy/8*4+1]; |
| const uint8_t *src3= hpel[dx/8 + dy/8*4+4]; |
| const uint8_t *src4= hpel[dx/8 + dy/8*4+5]; |
| dx&=7; |
| dy&=7; |
| for(y=0; y < b_h; y++){ |
| for(x=0; x < b_w; x++){ |
| dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+ |
| (8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6; |
| } |
| src1+=stride; |
| src2+=stride; |
| src3+=stride; |
| src4+=stride; |
| dst +=stride; |
| } |
| }else{ |
| const uint8_t *src1= hpel[l]; |
| const uint8_t *src2= hpel[r]; |
| int a= weight[((dx&7) + (8*(dy&7)))]; |
| int b= 8-a; |
| for(y=0; y < b_h; y++){ |
| for(x=0; x < b_w; x++){ |
| dst[x]= (a*src1[x] + b*src2[x] + 4)>>3; |
| } |
| src1+=stride; |
| src2+=stride; |
| dst +=stride; |
| } |
| } |
| } |
| |
| void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, int stride, int sx, int sy, int b_w, int b_h, BlockNode *block, int plane_index, int w, int h){ |
| if(block->type & BLOCK_INTRA){ |
| int x, y; |
| const unsigned color = block->color[plane_index]; |
| const unsigned color4 = color*0x01010101; |
| if(b_w==32){ |
| for(y=0; y < b_h; y++){ |
| *(uint32_t*)&dst[0 + y*stride]= color4; |
| *(uint32_t*)&dst[4 + y*stride]= color4; |
| *(uint32_t*)&dst[8 + y*stride]= color4; |
| *(uint32_t*)&dst[12+ y*stride]= color4; |
| *(uint32_t*)&dst[16+ y*stride]= color4; |
| *(uint32_t*)&dst[20+ y*stride]= color4; |
| *(uint32_t*)&dst[24+ y*stride]= color4; |
| *(uint32_t*)&dst[28+ y*stride]= color4; |
| } |
| }else if(b_w==16){ |
| for(y=0; y < b_h; y++){ |
| *(uint32_t*)&dst[0 + y*stride]= color4; |
| *(uint32_t*)&dst[4 + y*stride]= color4; |
| *(uint32_t*)&dst[8 + y*stride]= color4; |
| *(uint32_t*)&dst[12+ y*stride]= color4; |
| } |
| }else if(b_w==8){ |
| for(y=0; y < b_h; y++){ |
| *(uint32_t*)&dst[0 + y*stride]= color4; |
| *(uint32_t*)&dst[4 + y*stride]= color4; |
| } |
| }else if(b_w==4){ |
| for(y=0; y < b_h; y++){ |
| *(uint32_t*)&dst[0 + y*stride]= color4; |
| } |
| }else{ |
| for(y=0; y < b_h; y++){ |
| for(x=0; x < b_w; x++){ |
| dst[x + y*stride]= color; |
| } |
| } |
| } |
| }else{ |
| uint8_t *src= s->last_picture[block->ref].data[plane_index]; |
| const int scale= plane_index ? s->mv_scale : 2*s->mv_scale; |
| int mx= block->mx*scale; |
| int my= block->my*scale; |
| const int dx= mx&15; |
| const int dy= my&15; |
| const int tab_index= 3 - (b_w>>2) + (b_w>>4); |
| sx += (mx>>4) - (HTAPS_MAX/2-1); |
| sy += (my>>4) - (HTAPS_MAX/2-1); |
| src += sx + sy*stride; |
| if( (unsigned)sx >= w - b_w - (HTAPS_MAX-2) |
| || (unsigned)sy >= h - b_h - (HTAPS_MAX-2)){ |
| s->dsp.emulated_edge_mc(tmp + MB_SIZE, src, stride, b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1, sx, sy, w, h); |
| src= tmp + MB_SIZE; |
| } |
| // assert(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h); |
| // assert(!(b_w&(b_w-1))); |
| assert(b_w>1 && b_h>1); |
| assert((tab_index>=0 && tab_index<4) || b_w==32); |
| if((dx&3) || (dy&3) || !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h) || (b_w&(b_w-1)) || !s->plane[plane_index].fast_mc ) |
| mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy); |
| else if(b_w==32){ |
| int y; |
| for(y=0; y<b_h; y+=16){ |
| s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride); |
| s->dsp.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride); |
| } |
| }else if(b_w==b_h) |
| s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride); |
| else if(b_w==2*b_h){ |
| s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride); |
| s->dsp.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride); |
| }else{ |
| assert(2*b_w==b_h); |
| s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride); |
| s->dsp.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst+b_w*stride,src + 3 + 3*stride+b_w*stride,stride); |
| } |
| } |
| } |
| |
| #define mca(dx,dy,b_w)\ |
| static void mc_block_hpel ## dx ## dy ## b_w(uint8_t *dst, const uint8_t *src, int stride, int h){\ |
| assert(h==b_w);\ |
| mc_block(NULL, dst, src-(HTAPS_MAX/2-1)-(HTAPS_MAX/2-1)*stride, stride, b_w, b_w, dx, dy);\ |
| } |
| |
| mca( 0, 0,16) |
| mca( 8, 0,16) |
| mca( 0, 8,16) |
| mca( 8, 8,16) |
| mca( 0, 0,8) |
| mca( 8, 0,8) |
| mca( 0, 8,8) |
| mca( 8, 8,8) |
| |
| av_cold int ff_snow_common_init(AVCodecContext *avctx){ |
| SnowContext *s = avctx->priv_data; |
| int width, height; |
| int i, j, ret; |
| |
| s->avctx= avctx; |
| s->max_ref_frames=1; //just make sure its not an invalid value in case of no initial keyframe |
| |
| dsputil_init(&s->dsp, avctx); |
| ff_dwt_init(&s->dwt); |
| |
| #define mcf(dx,dy)\ |
| s->dsp.put_qpel_pixels_tab [0][dy+dx/4]=\ |
| s->dsp.put_no_rnd_qpel_pixels_tab[0][dy+dx/4]=\ |
| s->dsp.put_h264_qpel_pixels_tab[0][dy+dx/4];\ |
| s->dsp.put_qpel_pixels_tab [1][dy+dx/4]=\ |
| s->dsp.put_no_rnd_qpel_pixels_tab[1][dy+dx/4]=\ |
| s->dsp.put_h264_qpel_pixels_tab[1][dy+dx/4]; |
| |
| mcf( 0, 0) |
| mcf( 4, 0) |
| mcf( 8, 0) |
| mcf(12, 0) |
| mcf( 0, 4) |
| mcf( 4, 4) |
| mcf( 8, 4) |
| mcf(12, 4) |
| mcf( 0, 8) |
| mcf( 4, 8) |
| mcf( 8, 8) |
| mcf(12, 8) |
| mcf( 0,12) |
| mcf( 4,12) |
| mcf( 8,12) |
| mcf(12,12) |
| |
| #define mcfh(dx,dy)\ |
| s->dsp.put_pixels_tab [0][dy/4+dx/8]=\ |
| s->dsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\ |
| mc_block_hpel ## dx ## dy ## 16;\ |
| s->dsp.put_pixels_tab [1][dy/4+dx/8]=\ |
| s->dsp.put_no_rnd_pixels_tab[1][dy/4+dx/8]=\ |
| mc_block_hpel ## dx ## dy ## 8; |
| |
| mcfh(0, 0) |
| mcfh(8, 0) |
| mcfh(0, 8) |
| mcfh(8, 8) |
| |
| init_qexp(); |
| |
| // dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift); |
| |
| width= s->avctx->width; |
| height= s->avctx->height; |
| |
| FF_ALLOCZ_OR_GOTO(avctx, s->spatial_idwt_buffer, width * height * sizeof(IDWTELEM), fail); |
| FF_ALLOCZ_OR_GOTO(avctx, s->spatial_dwt_buffer, width * height * sizeof(DWTELEM), fail); //FIXME this does not belong here |
| |
| for(i=0; i<MAX_REF_FRAMES; i++) |
| for(j=0; j<MAX_REF_FRAMES; j++) |
| scale_mv_ref[i][j] = 256*(i+1)/(j+1); |
| |
| if ((ret = s->avctx->get_buffer(s->avctx, &s->mconly_picture)) < 0) { |
| av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| return ret; |
| } |
| FF_ALLOC_OR_GOTO(avctx, s->scratchbuf, s->mconly_picture.linesize[0]*7*MB_SIZE, fail); |
| |
| return 0; |
| fail: |
| return AVERROR(ENOMEM); |
| } |
| |
| int ff_snow_common_init_after_header(AVCodecContext *avctx) { |
| SnowContext *s = avctx->priv_data; |
| int plane_index, level, orientation; |
| |
| for(plane_index=0; plane_index<3; plane_index++){ |
| int w= s->avctx->width; |
| int h= s->avctx->height; |
| |
| if(plane_index){ |
| w>>= s->chroma_h_shift; |
| h>>= s->chroma_v_shift; |
| } |
| s->plane[plane_index].width = w; |
| s->plane[plane_index].height= h; |
| |
| for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
| for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
| SubBand *b= &s->plane[plane_index].band[level][orientation]; |
| |
| b->buf= s->spatial_dwt_buffer; |
| b->level= level; |
| b->stride= s->plane[plane_index].width << (s->spatial_decomposition_count - level); |
| b->width = (w + !(orientation&1))>>1; |
| b->height= (h + !(orientation>1))>>1; |
| |
| b->stride_line = 1 << (s->spatial_decomposition_count - level); |
| b->buf_x_offset = 0; |
| b->buf_y_offset = 0; |
| |
| if(orientation&1){ |
| b->buf += (w+1)>>1; |
| b->buf_x_offset = (w+1)>>1; |
| } |
| if(orientation>1){ |
| b->buf += b->stride>>1; |
| b->buf_y_offset = b->stride_line >> 1; |
| } |
| b->ibuf= s->spatial_idwt_buffer + (b->buf - s->spatial_dwt_buffer); |
| |
| if(level) |
| b->parent= &s->plane[plane_index].band[level-1][orientation]; |
| //FIXME avoid this realloc |
| av_freep(&b->x_coeff); |
| b->x_coeff=av_mallocz(((b->width+1) * b->height+1)*sizeof(x_and_coeff)); |
| } |
| w= (w+1)>>1; |
| h= (h+1)>>1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| #define USE_HALFPEL_PLANE 0 |
| |
| static void halfpel_interpol(SnowContext *s, uint8_t *halfpel[4][4], AVFrame *frame){ |
| int p,x,y; |
| |
| for(p=0; p<3; p++){ |
| int is_chroma= !!p; |
| int w= s->avctx->width >>is_chroma; |
| int h= s->avctx->height >>is_chroma; |
| int ls= frame->linesize[p]; |
| uint8_t *src= frame->data[p]; |
| |
| halfpel[1][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); |
| halfpel[2][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); |
| halfpel[3][p] = (uint8_t*) av_malloc(ls * (h + 2 * EDGE_WIDTH)) + EDGE_WIDTH * (1 + ls); |
| |
| halfpel[0][p]= src; |
| for(y=0; y<h; y++){ |
| for(x=0; x<w; x++){ |
| int i= y*ls + x; |
| |
| halfpel[1][p][i]= (20*(src[i] + src[i+1]) - 5*(src[i-1] + src[i+2]) + (src[i-2] + src[i+3]) + 16 )>>5; |
| } |
| } |
| for(y=0; y<h; y++){ |
| for(x=0; x<w; x++){ |
| int i= y*ls + x; |
| |
| halfpel[2][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; |
| } |
| } |
| src= halfpel[1][p]; |
| for(y=0; y<h; y++){ |
| for(x=0; x<w; x++){ |
| int i= y*ls + x; |
| |
| halfpel[3][p][i]= (20*(src[i] + src[i+ls]) - 5*(src[i-ls] + src[i+2*ls]) + (src[i-2*ls] + src[i+3*ls]) + 16 )>>5; |
| } |
| } |
| |
| //FIXME border! |
| } |
| } |
| |
| void ff_snow_release_buffer(AVCodecContext *avctx) |
| { |
| SnowContext *s = avctx->priv_data; |
| int i; |
| |
| if(s->last_picture[s->max_ref_frames-1].data[0]){ |
| avctx->release_buffer(avctx, &s->last_picture[s->max_ref_frames-1]); |
| for(i=0; i<9; i++) |
| if(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3]) |
| av_free(s->halfpel_plane[s->max_ref_frames-1][1+i/3][i%3] - EDGE_WIDTH*(1+s->current_picture.linesize[i%3])); |
| } |
| } |
| |
| int ff_snow_frame_start(SnowContext *s){ |
| AVFrame tmp; |
| int w= s->avctx->width; //FIXME round up to x16 ? |
| int h= s->avctx->height; |
| |
| if (s->current_picture.data[0] && !(s->avctx->flags&CODEC_FLAG_EMU_EDGE)) { |
| s->dsp.draw_edges(s->current_picture.data[0], |
| s->current_picture.linesize[0], w , h , |
| EDGE_WIDTH , EDGE_WIDTH , EDGE_TOP | EDGE_BOTTOM); |
| s->dsp.draw_edges(s->current_picture.data[1], |
| s->current_picture.linesize[1], w>>1, h>>1, |
| EDGE_WIDTH/2, EDGE_WIDTH/2, EDGE_TOP | EDGE_BOTTOM); |
| s->dsp.draw_edges(s->current_picture.data[2], |
| s->current_picture.linesize[2], w>>1, h>>1, |
| EDGE_WIDTH/2, EDGE_WIDTH/2, EDGE_TOP | EDGE_BOTTOM); |
| } |
| |
| ff_snow_release_buffer(s->avctx); |
| |
| tmp= s->last_picture[s->max_ref_frames-1]; |
| memmove(s->last_picture+1, s->last_picture, (s->max_ref_frames-1)*sizeof(AVFrame)); |
| memmove(s->halfpel_plane+1, s->halfpel_plane, (s->max_ref_frames-1)*sizeof(void*)*4*4); |
| if(USE_HALFPEL_PLANE && s->current_picture.data[0]) |
| halfpel_interpol(s, s->halfpel_plane[0], &s->current_picture); |
| s->last_picture[0]= s->current_picture; |
| s->current_picture= tmp; |
| |
| if(s->keyframe){ |
| s->ref_frames= 0; |
| }else{ |
| int i; |
| for(i=0; i<s->max_ref_frames && s->last_picture[i].data[0]; i++) |
| if(i && s->last_picture[i-1].key_frame) |
| break; |
| s->ref_frames= i; |
| if(s->ref_frames==0){ |
| av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n"); |
| return -1; |
| } |
| } |
| |
| s->current_picture.reference= 3; |
| if(s->avctx->get_buffer(s->avctx, &s->current_picture) < 0){ |
| av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); |
| return -1; |
| } |
| |
| s->current_picture.key_frame= s->keyframe; |
| |
| return 0; |
| } |
| |
| av_cold void ff_snow_common_end(SnowContext *s) |
| { |
| int plane_index, level, orientation, i; |
| |
| av_freep(&s->spatial_dwt_buffer); |
| av_freep(&s->spatial_idwt_buffer); |
| |
| s->m.me.temp= NULL; |
| av_freep(&s->m.me.scratchpad); |
| av_freep(&s->m.me.map); |
| av_freep(&s->m.me.score_map); |
| av_freep(&s->m.obmc_scratchpad); |
| |
| av_freep(&s->block); |
| av_freep(&s->scratchbuf); |
| |
| for(i=0; i<MAX_REF_FRAMES; i++){ |
| av_freep(&s->ref_mvs[i]); |
| av_freep(&s->ref_scores[i]); |
| if(s->last_picture[i].data[0]) |
| s->avctx->release_buffer(s->avctx, &s->last_picture[i]); |
| } |
| |
| for(plane_index=0; plane_index<3; plane_index++){ |
| for(level=s->spatial_decomposition_count-1; level>=0; level--){ |
| for(orientation=level ? 1 : 0; orientation<4; orientation++){ |
| SubBand *b= &s->plane[plane_index].band[level][orientation]; |
| |
| av_freep(&b->x_coeff); |
| } |
| } |
| } |
| if (s->mconly_picture.data[0]) |
| s->avctx->release_buffer(s->avctx, &s->mconly_picture); |
| if (s->current_picture.data[0]) |
| s->avctx->release_buffer(s->avctx, &s->current_picture); |
| } |
| |
