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790f793844
There are lots of files that don't need it: The number of object files that actually need it went down from 2011 to 884 here. Keep it for external users in order to not cause breakages. Also improve the other headers a bit while just at it. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
587 lines
21 KiB
C
587 lines
21 KiB
C
/*
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* Copyright (C) 2004 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/log.h"
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#include "libavutil/mem.h"
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#include "libavutil/thread.h"
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#include "avcodec.h"
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#include "snow_dwt.h"
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#include "snow.h"
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#include "snowdata.h"
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void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
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int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8){
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int y, x;
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IDWTELEM * dst;
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for(y=0; y<b_h; y++){
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//FIXME ugly misuse of obmc_stride
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const uint8_t *obmc1= obmc + y*obmc_stride;
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const uint8_t *obmc2= obmc1+ (obmc_stride>>1);
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const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1);
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const uint8_t *obmc4= obmc3+ (obmc_stride>>1);
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dst = slice_buffer_get_line(sb, src_y + y);
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for(x=0; x<b_w; x++){
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int v= obmc1[x] * block[3][x + y*src_stride]
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+obmc2[x] * block[2][x + y*src_stride]
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+obmc3[x] * block[1][x + y*src_stride]
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+obmc4[x] * block[0][x + y*src_stride];
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v <<= 8 - LOG2_OBMC_MAX;
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if(FRAC_BITS != 8){
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v >>= 8 - FRAC_BITS;
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}
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if(add){
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v += dst[x + src_x];
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v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS;
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if(v&(~255)) v= ~(v>>31);
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dst8[x + y*src_stride] = v;
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}else{
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dst[x + src_x] -= v;
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}
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}
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}
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}
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void ff_snow_reset_contexts(SnowContext *s){ //FIXME better initial contexts
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int plane_index, level, orientation;
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for(plane_index=0; plane_index<3; plane_index++){
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for(level=0; level<MAX_DECOMPOSITIONS; level++){
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for(orientation=level ? 1:0; orientation<4; orientation++){
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memset(s->plane[plane_index].band[level][orientation].state, MID_STATE, sizeof(s->plane[plane_index].band[level][orientation].state));
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}
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}
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}
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memset(s->header_state, MID_STATE, sizeof(s->header_state));
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memset(s->block_state, MID_STATE, sizeof(s->block_state));
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}
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int ff_snow_alloc_blocks(SnowContext *s){
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int w= AV_CEIL_RSHIFT(s->avctx->width, LOG2_MB_SIZE);
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int h= AV_CEIL_RSHIFT(s->avctx->height, LOG2_MB_SIZE);
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s->b_width = w;
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s->b_height= h;
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av_free(s->block);
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s->block = av_calloc(w * h, sizeof(*s->block) << (s->block_max_depth*2));
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if (!s->block)
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return AVERROR(ENOMEM);
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return 0;
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}
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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){
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static const uint8_t weight[64]={
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8,7,6,5,4,3,2,1,
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7,7,0,0,0,0,0,1,
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6,0,6,0,0,0,2,0,
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5,0,0,5,0,3,0,0,
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4,0,0,0,4,0,0,0,
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3,0,0,5,0,3,0,0,
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2,0,6,0,0,0,2,0,
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1,7,0,0,0,0,0,1,
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};
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static const uint8_t brane[256]={
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0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x11,0x12,0x12,0x12,0x12,0x12,0x12,0x12,
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0x04,0x05,0xcc,0xcc,0xcc,0xcc,0xcc,0x41,0x15,0x16,0xcc,0xcc,0xcc,0xcc,0xcc,0x52,
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0x04,0xcc,0x05,0xcc,0xcc,0xcc,0x41,0xcc,0x15,0xcc,0x16,0xcc,0xcc,0xcc,0x52,0xcc,
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0x04,0xcc,0xcc,0x05,0xcc,0x41,0xcc,0xcc,0x15,0xcc,0xcc,0x16,0xcc,0x52,0xcc,0xcc,
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0x04,0xcc,0xcc,0xcc,0x41,0xcc,0xcc,0xcc,0x15,0xcc,0xcc,0xcc,0x16,0xcc,0xcc,0xcc,
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0x04,0xcc,0xcc,0x41,0xcc,0x05,0xcc,0xcc,0x15,0xcc,0xcc,0x52,0xcc,0x16,0xcc,0xcc,
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0x04,0xcc,0x41,0xcc,0xcc,0xcc,0x05,0xcc,0x15,0xcc,0x52,0xcc,0xcc,0xcc,0x16,0xcc,
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0x04,0x41,0xcc,0xcc,0xcc,0xcc,0xcc,0x05,0x15,0x52,0xcc,0xcc,0xcc,0xcc,0xcc,0x16,
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0x44,0x45,0x45,0x45,0x45,0x45,0x45,0x45,0x55,0x56,0x56,0x56,0x56,0x56,0x56,0x56,
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0x48,0x49,0xcc,0xcc,0xcc,0xcc,0xcc,0x85,0x59,0x5A,0xcc,0xcc,0xcc,0xcc,0xcc,0x96,
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0x48,0xcc,0x49,0xcc,0xcc,0xcc,0x85,0xcc,0x59,0xcc,0x5A,0xcc,0xcc,0xcc,0x96,0xcc,
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0x48,0xcc,0xcc,0x49,0xcc,0x85,0xcc,0xcc,0x59,0xcc,0xcc,0x5A,0xcc,0x96,0xcc,0xcc,
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0x48,0xcc,0xcc,0xcc,0x49,0xcc,0xcc,0xcc,0x59,0xcc,0xcc,0xcc,0x96,0xcc,0xcc,0xcc,
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0x48,0xcc,0xcc,0x85,0xcc,0x49,0xcc,0xcc,0x59,0xcc,0xcc,0x96,0xcc,0x5A,0xcc,0xcc,
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0x48,0xcc,0x85,0xcc,0xcc,0xcc,0x49,0xcc,0x59,0xcc,0x96,0xcc,0xcc,0xcc,0x5A,0xcc,
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0x48,0x85,0xcc,0xcc,0xcc,0xcc,0xcc,0x49,0x59,0x96,0xcc,0xcc,0xcc,0xcc,0xcc,0x5A,
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};
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static const uint8_t needs[16]={
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0,1,0,0,
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2,4,2,0,
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0,1,0,0,
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15
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};
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int x, y, b, r, l;
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int16_t tmpIt [64*(32+HTAPS_MAX)];
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uint8_t tmp2t[3][64*(32+HTAPS_MAX)];
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int16_t *tmpI= tmpIt;
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uint8_t *tmp2= tmp2t[0];
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const uint8_t *hpel[11];
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av_assert2(dx<16 && dy<16);
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r= brane[dx + 16*dy]&15;
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l= brane[dx + 16*dy]>>4;
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b= needs[l] | needs[r];
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if(p && !p->diag_mc)
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b= 15;
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if(b&5){
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for(y=0; y < b_h+HTAPS_MAX-1; y++){
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for(x=0; x < b_w; x++){
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int a_1=src[x + HTAPS_MAX/2-4];
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int a0= src[x + HTAPS_MAX/2-3];
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int a1= src[x + HTAPS_MAX/2-2];
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int a2= src[x + HTAPS_MAX/2-1];
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int a3= src[x + HTAPS_MAX/2+0];
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int a4= src[x + HTAPS_MAX/2+1];
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int a5= src[x + HTAPS_MAX/2+2];
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int a6= src[x + HTAPS_MAX/2+3];
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int am=0;
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if(!p || p->fast_mc){
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am= 20*(a2+a3) - 5*(a1+a4) + (a0+a5);
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tmpI[x]= am;
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am= (am+16)>>5;
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}else{
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am= p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6);
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tmpI[x]= am;
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am= (am+32)>>6;
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}
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if(am&(~255)) am= ~(am>>31);
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tmp2[x]= am;
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}
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tmpI+= 64;
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tmp2+= 64;
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src += stride;
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}
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src -= stride*y;
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}
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src += HTAPS_MAX/2 - 1;
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tmp2= tmp2t[1];
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if(b&2){
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for(y=0; y < b_h; y++){
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for(x=0; x < b_w+1; x++){
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int a_1=src[x + (HTAPS_MAX/2-4)*stride];
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int a0= src[x + (HTAPS_MAX/2-3)*stride];
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int a1= src[x + (HTAPS_MAX/2-2)*stride];
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int a2= src[x + (HTAPS_MAX/2-1)*stride];
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int a3= src[x + (HTAPS_MAX/2+0)*stride];
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int a4= src[x + (HTAPS_MAX/2+1)*stride];
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int a5= src[x + (HTAPS_MAX/2+2)*stride];
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int a6= src[x + (HTAPS_MAX/2+3)*stride];
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int am=0;
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if(!p || p->fast_mc)
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am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 16)>>5;
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else
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am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 32)>>6;
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if(am&(~255)) am= ~(am>>31);
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tmp2[x]= am;
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}
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src += stride;
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tmp2+= 64;
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}
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src -= stride*y;
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}
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src += stride*(HTAPS_MAX/2 - 1);
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tmp2= tmp2t[2];
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tmpI= tmpIt;
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if(b&4){
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for(y=0; y < b_h; y++){
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for(x=0; x < b_w; x++){
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int a_1=tmpI[x + (HTAPS_MAX/2-4)*64];
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int a0= tmpI[x + (HTAPS_MAX/2-3)*64];
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int a1= tmpI[x + (HTAPS_MAX/2-2)*64];
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int a2= tmpI[x + (HTAPS_MAX/2-1)*64];
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int a3= tmpI[x + (HTAPS_MAX/2+0)*64];
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int a4= tmpI[x + (HTAPS_MAX/2+1)*64];
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int a5= tmpI[x + (HTAPS_MAX/2+2)*64];
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int a6= tmpI[x + (HTAPS_MAX/2+3)*64];
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int am=0;
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if(!p || p->fast_mc)
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am= (20*(a2+a3) - 5*(a1+a4) + (a0+a5) + 512)>>10;
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else
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am= (p->hcoeff[0]*(a2+a3) + p->hcoeff[1]*(a1+a4) + p->hcoeff[2]*(a0+a5) + p->hcoeff[3]*(a_1+a6) + 2048)>>12;
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if(am&(~255)) am= ~(am>>31);
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tmp2[x]= am;
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}
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tmpI+= 64;
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tmp2+= 64;
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}
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}
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hpel[ 0]= src;
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hpel[ 1]= tmp2t[0] + 64*(HTAPS_MAX/2-1);
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hpel[ 2]= src + 1;
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hpel[ 4]= tmp2t[1];
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hpel[ 5]= tmp2t[2];
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hpel[ 6]= tmp2t[1] + 1;
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hpel[ 8]= src + stride;
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hpel[ 9]= hpel[1] + 64;
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hpel[10]= hpel[8] + 1;
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#define MC_STRIDE(x) (needs[x] ? 64 : stride)
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if(b==15){
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int dxy = dx / 8 + dy / 8 * 4;
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const uint8_t *src1 = hpel[dxy ];
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const uint8_t *src2 = hpel[dxy + 1];
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const uint8_t *src3 = hpel[dxy + 4];
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const uint8_t *src4 = hpel[dxy + 5];
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int stride1 = MC_STRIDE(dxy);
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int stride2 = MC_STRIDE(dxy + 1);
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int stride3 = MC_STRIDE(dxy + 4);
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int stride4 = MC_STRIDE(dxy + 5);
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dx&=7;
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dy&=7;
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for(y=0; y < b_h; y++){
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for(x=0; x < b_w; x++){
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dst[x]= ((8-dx)*(8-dy)*src1[x] + dx*(8-dy)*src2[x]+
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(8-dx)* dy *src3[x] + dx* dy *src4[x]+32)>>6;
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}
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src1+=stride1;
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src2+=stride2;
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src3+=stride3;
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src4+=stride4;
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dst +=stride;
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}
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}else{
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const uint8_t *src1= hpel[l];
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const uint8_t *src2= hpel[r];
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int stride1 = MC_STRIDE(l);
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int stride2 = MC_STRIDE(r);
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int a= weight[((dx&7) + (8*(dy&7)))];
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int b= 8-a;
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for(y=0; y < b_h; y++){
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for(x=0; x < b_w; x++){
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dst[x]= (a*src1[x] + b*src2[x] + 4)>>3;
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}
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src1+=stride1;
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src2+=stride2;
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dst +=stride;
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}
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}
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}
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void ff_snow_pred_block(SnowContext *s, uint8_t *dst, uint8_t *tmp, ptrdiff_t stride, int sx, int sy, int b_w, int b_h, const BlockNode *block, int plane_index, int w, int h){
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if(block->type & BLOCK_INTRA){
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int x, y;
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const unsigned color = block->color[plane_index];
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const unsigned color4 = color*0x01010101;
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if(b_w==32){
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for(y=0; y < b_h; y++){
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*(uint32_t*)&dst[0 + y*stride]= color4;
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*(uint32_t*)&dst[4 + y*stride]= color4;
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*(uint32_t*)&dst[8 + y*stride]= color4;
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*(uint32_t*)&dst[12+ y*stride]= color4;
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*(uint32_t*)&dst[16+ y*stride]= color4;
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*(uint32_t*)&dst[20+ y*stride]= color4;
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*(uint32_t*)&dst[24+ y*stride]= color4;
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*(uint32_t*)&dst[28+ y*stride]= color4;
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}
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}else if(b_w==16){
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for(y=0; y < b_h; y++){
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*(uint32_t*)&dst[0 + y*stride]= color4;
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*(uint32_t*)&dst[4 + y*stride]= color4;
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*(uint32_t*)&dst[8 + y*stride]= color4;
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*(uint32_t*)&dst[12+ y*stride]= color4;
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}
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}else if(b_w==8){
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for(y=0; y < b_h; y++){
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*(uint32_t*)&dst[0 + y*stride]= color4;
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*(uint32_t*)&dst[4 + y*stride]= color4;
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}
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}else if(b_w==4){
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for(y=0; y < b_h; y++){
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*(uint32_t*)&dst[0 + y*stride]= color4;
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}
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}else{
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for(y=0; y < b_h; y++){
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for(x=0; x < b_w; x++){
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dst[x + y*stride]= color;
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}
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}
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}
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}else{
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const uint8_t *src = s->last_picture[block->ref]->data[plane_index];
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const int scale= plane_index ? (2*s->mv_scale)>>s->chroma_h_shift : 2*s->mv_scale;
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int mx= block->mx*scale;
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int my= block->my*scale;
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const int dx= mx&15;
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const int dy= my&15;
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const int tab_index= 3 - (b_w>>2) + (b_w>>4);
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sx += (mx>>4) - (HTAPS_MAX/2-1);
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sy += (my>>4) - (HTAPS_MAX/2-1);
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src += sx + sy*stride;
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if( (unsigned)sx >= FFMAX(w - b_w - (HTAPS_MAX-2), 0)
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|| (unsigned)sy >= FFMAX(h - b_h - (HTAPS_MAX-2), 0)){
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s->vdsp.emulated_edge_mc(tmp + MB_SIZE, src,
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stride, stride,
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b_w+HTAPS_MAX-1, b_h+HTAPS_MAX-1,
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sx, sy, w, h);
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src= tmp + MB_SIZE;
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}
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av_assert2(s->chroma_h_shift == s->chroma_v_shift); // only one mv_scale
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av_assert2((tab_index>=0 && tab_index<4) || b_w==32);
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if( (dx&3) || (dy&3)
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|| !(b_w == b_h || 2*b_w == b_h || b_w == 2*b_h)
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|| (b_w&(b_w-1))
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|| b_w == 1
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|| b_h == 1
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|| !s->plane[plane_index].fast_mc )
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mc_block(&s->plane[plane_index], dst, src, stride, b_w, b_h, dx, dy);
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else if(b_w==32){
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int y;
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for(y=0; y<b_h; y+=16){
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s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + y*stride, src + 3 + (y+3)*stride,stride);
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s->h264qpel.put_h264_qpel_pixels_tab[0][dy+(dx>>2)](dst + 16 + y*stride, src + 19 + (y+3)*stride,stride);
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}
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}else if(b_w==b_h)
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s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst,src + 3 + 3*stride,stride);
|
|
else if(b_w==2*b_h){
|
|
s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst ,src + 3 + 3*stride,stride);
|
|
s->h264qpel.put_h264_qpel_pixels_tab[tab_index+1][dy+(dx>>2)](dst+b_h,src + 3 + b_h + 3*stride,stride);
|
|
}else{
|
|
av_assert2(2*b_w==b_h);
|
|
s->h264qpel.put_h264_qpel_pixels_tab[tab_index ][dy+(dx>>2)](dst ,src + 3 + 3*stride ,stride);
|
|
s->h264qpel.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, ptrdiff_t stride, int h){\
|
|
av_assert2(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)
|
|
|
|
static av_cold void snow_static_init(void)
|
|
{
|
|
for (int i = 0; i < MAX_REF_FRAMES; i++)
|
|
for (int j = 0; j < MAX_REF_FRAMES; j++)
|
|
ff_scale_mv_ref[i][j] = 256 * (i + 1) / (j + 1);
|
|
}
|
|
|
|
av_cold int ff_snow_common_init(AVCodecContext *avctx){
|
|
static AVOnce init_static_once = AV_ONCE_INIT;
|
|
SnowContext *s = avctx->priv_data;
|
|
int width, height;
|
|
int i;
|
|
|
|
s->avctx= avctx;
|
|
s->max_ref_frames=1; //just make sure it's not an invalid value in case of no initial keyframe
|
|
s->spatial_decomposition_count = 1;
|
|
|
|
ff_videodsp_init(&s->vdsp, 8);
|
|
ff_dwt_init(&s->dwt);
|
|
ff_h264qpel_init(&s->h264qpel, 8);
|
|
|
|
#define mcfh(dx,dy)\
|
|
s->hdsp.put_pixels_tab [0][dy/4+dx/8]=\
|
|
s->hdsp.put_no_rnd_pixels_tab[0][dy/4+dx/8]=\
|
|
mc_block_hpel ## dx ## dy ## 16;\
|
|
s->hdsp.put_pixels_tab [1][dy/4+dx/8]=\
|
|
s->hdsp.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)
|
|
|
|
// dec += FFMAX(s->chroma_h_shift, s->chroma_v_shift);
|
|
|
|
width= s->avctx->width;
|
|
height= s->avctx->height;
|
|
|
|
if (!FF_ALLOCZ_TYPED_ARRAY(s->spatial_idwt_buffer, width * height) ||
|
|
!FF_ALLOCZ_TYPED_ARRAY(s->spatial_dwt_buffer, width * height) || //FIXME this does not belong here
|
|
!FF_ALLOCZ_TYPED_ARRAY(s->temp_dwt_buffer, width) ||
|
|
!FF_ALLOCZ_TYPED_ARRAY(s->temp_idwt_buffer, width) ||
|
|
!FF_ALLOCZ_TYPED_ARRAY(s->run_buffer, ((width + 1) >> 1) * ((height + 1) >> 1)))
|
|
return AVERROR(ENOMEM);
|
|
|
|
for(i=0; i<MAX_REF_FRAMES; i++) {
|
|
s->last_picture[i] = av_frame_alloc();
|
|
if (!s->last_picture[i])
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
s->mconly_picture = av_frame_alloc();
|
|
s->current_picture = av_frame_alloc();
|
|
if (!s->mconly_picture || !s->current_picture)
|
|
return AVERROR(ENOMEM);
|
|
|
|
ff_thread_once(&init_static_once, snow_static_init);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int ff_snow_common_init_after_header(AVCodecContext *avctx) {
|
|
SnowContext *s = avctx->priv_data;
|
|
int plane_index, level, orientation;
|
|
|
|
if(!s->scratchbuf) {
|
|
int emu_buf_size;
|
|
emu_buf_size = FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * (2 * MB_SIZE + HTAPS_MAX - 1);
|
|
if (!FF_ALLOCZ_TYPED_ARRAY(s->scratchbuf, FFMAX(s->mconly_picture->linesize[0], 2*avctx->width+256) * 7 * MB_SIZE) ||
|
|
!FF_ALLOCZ_TYPED_ARRAY(s->emu_edge_buffer, emu_buf_size))
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
for(plane_index=0; plane_index < s->nb_planes; plane_index++){
|
|
int w= s->avctx->width;
|
|
int h= s->avctx->height;
|
|
|
|
if(plane_index){
|
|
w = AV_CEIL_RSHIFT(w, s->chroma_h_shift);
|
|
h = AV_CEIL_RSHIFT(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_calloc((b->width + 1) * b->height + 1,
|
|
sizeof(*b->x_coeff));
|
|
if (!b->x_coeff)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
w= (w+1)>>1;
|
|
h= (h+1)>>1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ff_snow_release_buffer(AVCodecContext *avctx)
|
|
{
|
|
SnowContext *s = avctx->priv_data;
|
|
|
|
if(s->last_picture[s->max_ref_frames-1]->data[0]){
|
|
av_frame_unref(s->last_picture[s->max_ref_frames-1]);
|
|
}
|
|
}
|
|
|
|
int ff_snow_frames_prepare(SnowContext *s)
|
|
{
|
|
AVFrame *tmp;
|
|
|
|
ff_snow_release_buffer(s->avctx);
|
|
|
|
tmp= s->last_picture[s->max_ref_frames-1];
|
|
for (int i = s->max_ref_frames - 1; i > 0; i--)
|
|
s->last_picture[i] = s->last_picture[i-1];
|
|
s->last_picture[0] = s->current_picture;
|
|
s->current_picture = tmp;
|
|
|
|
if(s->keyframe){
|
|
s->ref_frames= 0;
|
|
s->current_picture->flags |= AV_FRAME_FLAG_KEY;
|
|
}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]->flags & AV_FRAME_FLAG_KEY))
|
|
break;
|
|
s->ref_frames= i;
|
|
if(s->ref_frames==0){
|
|
av_log(s->avctx,AV_LOG_ERROR, "No reference frames\n");
|
|
return AVERROR_INVALIDDATA;
|
|
}
|
|
s->current_picture->flags &= ~AV_FRAME_FLAG_KEY;
|
|
}
|
|
|
|
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->temp_dwt_buffer);
|
|
av_freep(&s->spatial_idwt_buffer);
|
|
av_freep(&s->temp_idwt_buffer);
|
|
av_freep(&s->run_buffer);
|
|
|
|
av_freep(&s->block);
|
|
av_freep(&s->scratchbuf);
|
|
av_freep(&s->emu_edge_buffer);
|
|
|
|
for(i=0; i<MAX_REF_FRAMES; i++){
|
|
if(s->last_picture[i] && s->last_picture[i]->data[0]) {
|
|
av_assert0(s->last_picture[i]->data[0] != s->current_picture->data[0]);
|
|
}
|
|
av_frame_free(&s->last_picture[i]);
|
|
}
|
|
|
|
for(plane_index=0; plane_index < MAX_PLANES; plane_index++){
|
|
for(level=MAX_DECOMPOSITIONS-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);
|
|
}
|
|
}
|
|
}
|
|
av_frame_free(&s->mconly_picture);
|
|
av_frame_free(&s->current_picture);
|
|
}
|