RepoMirrors
/
ffmpeg
mirror of https://git.ffmpeg.org/ffmpeg.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

4mv & qpel edge emu 

Originally committed as revision 760 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-07-15 00:25:53 +00:00
parent 93a21abde5
commit 225f9c44cf
1 changed files with 46 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
libavcodec/mpegvideo.c
View File

@ -924,10 +924,16 @@ static void emulated_edge_mc(UINT8 *buf, UINT8 *src, int linesize, int block_w,
if(src_y>= h){
src+= (h-1-src_y)*linesize;
src_y=h-1;
}else if(src_y<=-block_h){
src+= (1-block_h-src_y)*linesize;
src_y=1-block_h;
}
if(src_x>= w){
src+= (w-1-src_x);
src_x=w-1;
}else if(src_x<=-block_w){
src+= (1-block_w-src_x);
src_x=1-block_w;
}
start_y= MAX(0, -src_y);
@ -1067,6 +1073,7 @@ static inline void qpel_motion(MpegEncContext *s,
{
UINT8 *ptr;
int dxy, offset, mx, my, src_x, src_y, height, linesize;
int emu=0;
dxy = ((motion_y & 3) << 2) | (motion_x & 3);
src_x = s->mb_x * 16 + (motion_x >> 2);
@ -1083,6 +1090,15 @@ static inline void qpel_motion(MpegEncContext *s,
ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
dest_y += dest_offset;
//printf("%d %d %d\n", src_x, src_y, dxy);
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (motion_x&3) + 16 > s->width
|| src_y + (motion_y&3) + h > height){
emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
ptr= s->edge_emu_buffer;
emu=1;
}
}
qpix_op[dxy](dest_y , ptr , linesize, linesize, motion_x&3, motion_y&3);
qpix_op[dxy](dest_y + 8, ptr + 8, linesize, linesize, motion_x&3, motion_y&3);
qpix_op[dxy](dest_y + linesize*8 , ptr + linesize*8 , linesize, linesize, motion_x&3, motion_y&3);
@ -1112,8 +1128,17 @@ static inline void qpel_motion(MpegEncContext *s,
offset = (src_y * (linesize >> 1)) + src_x + (src_offset >> 1);
ptr = ref_picture[1] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, linesize>>1, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
ptr= s->edge_emu_buffer;
}
pix_op[dxy](dest_cb + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, linesize>>1, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
ptr= s->edge_emu_buffer;
}
pix_op[dxy](dest_cr + (dest_offset >> 1), ptr, linesize >> 1, h >> 1);
}
@ -1126,6 +1151,7 @@ static inline void MPV_motion(MpegEncContext *s,
int dxy, offset, mx, my, src_x, src_y, motion_x, motion_y;
int mb_x, mb_y, i;
UINT8 *ptr, *dest;
int emu=0;
mb_x = s->mb_x;
mb_y = s->mb_y;
@ -1175,6 +1201,13 @@ static inline void MPV_motion(MpegEncContext *s,
dxy &= ~2;
ptr = ref_picture[0] + (src_y * s->linesize) + (src_x);
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 8 > s->width
|| src_y + (motion_y&1) + 8 > s->height){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
ptr= s->edge_emu_buffer;
}
}
dest = dest_y + ((i & 1) * 8) + (i >> 1) * 8 * s->linesize;
pix_op[dxy](dest, ptr, s->linesize, 8);
}
@ -1215,8 +1248,21 @@ static inline void MPV_motion(MpegEncContext *s,
offset = (src_y * (s->linesize >> 1)) + src_x;
ptr = ref_picture[1] + offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (dxy &1) + 8 > s->width >>1
|| src_y + (dxy>>1) + 8 > s->height>>1){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize>>1, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
emu=1;
}
}
pix_op[dxy](dest_cb, ptr, s->linesize >> 1, 8);
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->linesize>>1, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
}
pix_op[dxy](dest_cr, ptr, s->linesize >> 1, 8);
break;
case MV_TYPE_FIELD: