*
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
*
- * This library is free software; you can redistribute it and/or
+ * 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 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library 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 this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
- * @file error_resilience.c
+ * @file libavcodec/error_resilience.c
* Error resilience / concealment.
*/
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
-#include "common.h"
static void decode_mb(MpegEncContext *s){
s->dest[0] = s->current_picture.data[0] + (s->mb_y * 16* s->linesize ) + s->mb_x * 16;
}
/**
- * guess the dc of blocks which dont have a undamaged dc
- * @param w width in 8 pixel blocks
- * @param h height in 8 pixel blocks
+ * guess the dc of blocks which do not have an undamaged dc
+ * @param w width in 8 pixel blocks
+ * @param h height in 8 pixel blocks
*/
static void guess_dc(MpegEncContext *s, int16_t *dc, int w, int h, int stride, int is_luma){
int b_x, b_y;
/**
* simple horizontal deblocking filter used for error resilience
- * @param w width in 8 pixel blocks
- * @param h height in 8 pixel blocks
+ * @param w width in 8 pixel blocks
+ * @param h height in 8 pixel blocks
*/
static void h_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){
int b_x, b_y;
- uint8_t *cm = cropTbl + MAX_NEG_CROP;
+ uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
for(b_y=0; b_y<h; b_y++){
for(b_x=0; b_x<w-1; b_x++){
if(!(left_damage||right_damage)) continue; // both undamaged
if( (!left_intra) && (!right_intra)
- && ABS(left_mv[0]-right_mv[0]) + ABS(left_mv[1]+right_mv[1]) < 2) continue;
+ && FFABS(left_mv[0]-right_mv[0]) + FFABS(left_mv[1]+right_mv[1]) < 2) continue;
for(y=0; y<8; y++){
int a,b,c,d;
b= dst[offset + 8 + y*stride] - dst[offset + 7 + y*stride];
c= dst[offset + 9 + y*stride] - dst[offset + 8 + y*stride];
- d= ABS(b) - ((ABS(a) + ABS(c) + 1)>>1);
+ d= FFABS(b) - ((FFABS(a) + FFABS(c) + 1)>>1);
d= FFMAX(d, 0);
if(b<0) d= -d;
/**
* simple vertical deblocking filter used for error resilience
- * @param w width in 8 pixel blocks
- * @param h height in 8 pixel blocks
+ * @param w width in 8 pixel blocks
+ * @param h height in 8 pixel blocks
*/
static void v_block_filter(MpegEncContext *s, uint8_t *dst, int w, int h, int stride, int is_luma){
int b_x, b_y;
- uint8_t *cm = cropTbl + MAX_NEG_CROP;
+ uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
for(b_y=0; b_y<h-1; b_y++){
for(b_x=0; b_x<w; b_x++){
if(!(top_damage||bottom_damage)) continue; // both undamaged
if( (!top_intra) && (!bottom_intra)
- && ABS(top_mv[0]-bottom_mv[0]) + ABS(top_mv[1]+bottom_mv[1]) < 2) continue;
+ && FFABS(top_mv[0]-bottom_mv[0]) + FFABS(top_mv[1]+bottom_mv[1]) < 2) continue;
for(x=0; x<8; x++){
int a,b,c,d;
b= dst[offset + x + 8*stride] - dst[offset + x + 7*stride];
c= dst[offset + x + 9*stride] - dst[offset + x + 8*stride];
- d= ABS(b) - ((ABS(a) + ABS(c)+1)>>1);
+ d= FFABS(b) - ((FFABS(a) + FFABS(c)+1)>>1);
d= FFMAX(d, 0);
if(b<0) d= -d;
s->mv_type = MV_TYPE_16X16;
s->mb_skipped=0;
- s->dsp.clear_blocks(s->block[0]);
+ s->dsp.clear_blocks(s->block[0]);
s->mb_x= mb_x;
s->mb_y= mb_y;
s->mv_type = MV_TYPE_16X16;
s->mb_skipped=0;
- s->dsp.clear_blocks(s->block[0]);
+ s->dsp.clear_blocks(s->block[0]);
s->mb_x= mb_x;
s->mb_y= mb_y;
if(mb_x>0 && fixed[mb_xy-1]){
int k;
for(k=0; k<16; k++)
- score += ABS(src[k*s->linesize-1 ]-src[k*s->linesize ]);
+ score += FFABS(src[k*s->linesize-1 ]-src[k*s->linesize ]);
}
if(mb_x+1<mb_width && fixed[mb_xy+1]){
int k;
for(k=0; k<16; k++)
- score += ABS(src[k*s->linesize+15]-src[k*s->linesize+16]);
+ score += FFABS(src[k*s->linesize+15]-src[k*s->linesize+16]);
}
if(mb_y>0 && fixed[mb_xy-mb_stride]){
int k;
for(k=0; k<16; k++)
- score += ABS(src[k-s->linesize ]-src[k ]);
+ score += FFABS(src[k-s->linesize ]-src[k ]);
}
if(mb_y+1<mb_height && fixed[mb_xy+mb_stride]){
int k;
for(k=0; k<16; k++)
- score += ABS(src[k+s->linesize*15]-src[k+s->linesize*16]);
+ score += FFABS(src[k+s->linesize*15]-src[k+s->linesize*16]);
}
if(score <= best_score){ // <= will favor the last MV
static int is_intra_more_likely(MpegEncContext *s){
int is_intra_likely, i, j, undamaged_count, skip_amount, mb_x, mb_y;
- if(s->last_picture_ptr==NULL) return 1; //no previous frame available -> use spatial prediction
+ if(!s->last_picture_ptr || !s->last_picture_ptr->data[0]) return 1; //no previous frame available -> use spatial prediction
undamaged_count=0;
for(i=0; i<s->mb_num; i++){
undamaged_count++;
}
- if(undamaged_count < 5) return 0; //allmost all MBs damaged -> use temporal prediction
+ if(undamaged_count < 5) return 0; //almost all MBs damaged -> use temporal prediction
+
+ //prevent dsp.sad() check, that requires access to the image
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration && s->pict_type == FF_I_TYPE)
+ return 1;
skip_amount= FFMAX(undamaged_count/50, 1); //check only upto 50 MBs
is_intra_likely=0;
j++;
if((j%skip_amount) != 0) continue; //skip a few to speed things up
- if(s->pict_type==I_TYPE){
+ if(s->pict_type==FF_I_TYPE){
uint8_t *mb_ptr = s->current_picture.data[0] + mb_x*16 + mb_y*16*s->linesize;
uint8_t *last_mb_ptr= s->last_picture.data [0] + mb_x*16 + mb_y*16*s->linesize;
- is_intra_likely += s->dsp.sad[0](NULL, last_mb_ptr, mb_ptr , s->linesize, 16);
+ is_intra_likely += s->dsp.sad[0](NULL, last_mb_ptr, mb_ptr , s->linesize, 16);
is_intra_likely -= s->dsp.sad[0](NULL, last_mb_ptr, last_mb_ptr+s->linesize*16, s->linesize, 16);
}else{
if(IS_INTRA(s->current_picture.mb_type[mb_xy]))
}
void ff_er_frame_start(MpegEncContext *s){
- if(!s->error_resilience) return;
+ if(!s->error_recognition) return;
memset(s->error_status_table, MV_ERROR|AC_ERROR|DC_ERROR|VP_START|AC_END|DC_END|MV_END, s->mb_stride*s->mb_height*sizeof(uint8_t));
s->error_count= 3*s->mb_num;
* adds a slice.
* @param endx x component of the last macroblock, can be -1 for the last of the previous line
* @param status the status at the end (MV_END, AC_ERROR, ...), it is assumed that no earlier end or
- * error of the same type occured
+ * error of the same type occurred
*/
void ff_er_add_slice(MpegEncContext *s, int startx, int starty, int endx, int endy, int status){
- const int start_i= clip(startx + starty * s->mb_width , 0, s->mb_num-1);
- const int end_i = clip(endx + endy * s->mb_width , 0, s->mb_num);
+ const int start_i= av_clip(startx + starty * s->mb_width , 0, s->mb_num-1);
+ const int end_i = av_clip(endx + endy * s->mb_width , 0, s->mb_num);
const int start_xy= s->mb_index2xy[start_i];
const int end_xy = s->mb_index2xy[end_i];
int mask= -1;
- if(!s->error_resilience) return;
+ if(start_i > end_i || start_xy > end_xy){
+ av_log(s->avctx, AV_LOG_ERROR, "internal error, slice end before start\n");
+ return;
+ }
+
+ if(!s->error_recognition) return;
mask &= ~VP_START;
if(status & (AC_ERROR|AC_END)){
int size = s->b8_stride * 2 * s->mb_height;
Picture *pic= s->current_picture_ptr;
- if(!s->error_resilience || s->error_count==0 ||
+ if(!s->error_recognition || s->error_count==0 || s->avctx->lowres ||
+ s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU ||
s->error_count==3*s->mb_width*(s->avctx->skip_top + s->avctx->skip_bottom)) return;
if(s->current_picture.motion_val[0] == NULL){
}
#endif
/* handle missing slices */
- if(s->error_resilience>=4){
+ if(s->error_recognition>=4){
int end_ok=1;
for(i=s->mb_num-2; i>=s->mb_width+100; i--){ //FIXME +100 hack
if( error2==(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END)
&& error1!=(VP_START|DC_ERROR|AC_ERROR|MV_ERROR|AC_END|DC_END|MV_END)
- && ((error1&AC_END) || (error1&DC_END) || (error1&MV_END))){ //end & uninited
+ && ((error1&AC_END) || (error1&DC_END) || (error1&MV_END))){ //end & uninit
end_ok=0;
}
s->mv[0][0][1] = s->current_picture.motion_val[0][ mb_x*2 + mb_y*2*s->b8_stride ][1];
}
- s->dsp.clear_blocks(s->block[0]);
+ s->dsp.clear_blocks(s->block[0]);
s->mb_x= mb_x;
s->mb_y= mb_y;
}
/* guess MVs */
- if(s->pict_type==B_TYPE){
+ if(s->pict_type==FF_B_TYPE){
for(mb_y=0; mb_y<s->mb_height; mb_y++){
for(mb_x=0; mb_x<s->mb_width; mb_x++){
int xy= mb_x*2 + mb_y*2*s->b8_stride;
}else
guess_mv(s);
-#ifdef HAVE_XVMC
/* the filters below are not XvMC compatible, skip them */
- if(s->avctx->xvmc_acceleration) goto ec_clean;
-#endif
+ if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
+ goto ec_clean;
/* fill DC for inter blocks */
for(mb_y=0; mb_y<s->mb_height; mb_y++){
for(mb_x=0; mb_x<s->mb_width; mb_x++){
v_block_filter(s, s->current_picture.data[2], s->mb_width , s->mb_height , s->uvlinesize, 0);
}
-#ifdef HAVE_XVMC
ec_clean:
-#endif
/* clean a few tables */
for(i=0; i<s->mb_num; i++){
const int mb_xy= s->mb_index2xy[i];
int error= s->error_status_table[mb_xy];
- if(s->pict_type!=B_TYPE && (error&(DC_ERROR|MV_ERROR|AC_ERROR))){
+ if(s->pict_type!=FF_B_TYPE && (error&(DC_ERROR|MV_ERROR|AC_ERROR))){
s->mbskip_table[mb_xy]=0;
}
s->mbintra_table[mb_xy]=1;
projects / ffmpeg / blobdiff