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fixing gmc with emu edges

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Originally committed as revision 772 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2002-07-17 12:42:50 +00:00
parent 4c9ede2e4b
commit 5499377432
1 changed files with 43 additions and 12 deletions
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55
libavcodec/mpegvideo.c
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@ -38,6 +38,8 @@ static int dct_quantize_c(MpegEncContext *s, DCTELEM *block, int n, int qscale,
int (*dct_quantize)(MpegEncContext *s, DCTELEM *block, int n, int qscale, int *overflow)= dct_quantize_c;
void (*draw_edges)(UINT8 *buf, int wrap, int width, int height, int w)= draw_edges_c;
static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h);
#define EDGE_WIDTH 16
@ -878,6 +880,7 @@ static inline void gmc1_motion(MpegEncContext *s,
UINT8 *ptr;
int offset, src_x, src_y, linesize, uvlinesize;
int motion_x, motion_y;
int emu=0;
if(s->real_sprite_warping_points>1) printf("more than 1 warp point isnt supported\n");
motion_x= s->sprite_offset[0][0];
@ -898,6 +901,14 @@ static inline void gmc1_motion(MpegEncContext *s,
ptr = ref_picture[0] + (src_y * linesize) + src_x + src_offset;
dest_y+=dest_offset;
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (motion_x&15) + 16 > s->width
|| src_y + (motion_y&15) + h > s->height){
emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, s->height);
ptr= s->edge_emu_buffer;
emu=1;
}
}
gmc1(dest_y , ptr , linesize, h, motion_x&15, motion_y&15, s->no_rounding);
gmc1(dest_y+8, ptr+8, linesize, h, motion_x&15, motion_y&15, s->no_rounding);
@ -916,18 +927,38 @@ static inline void gmc1_motion(MpegEncContext *s,
offset = (src_y * uvlinesize) + src_x + (src_offset>>1);
ptr = ref_picture[1] + offset;
if(emu){
emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
}
gmc1(dest_cb + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
}
gmc1(dest_cr + (dest_offset>>1), ptr, uvlinesize, h>>1, motion_x&15, motion_y&15, s->no_rounding);
return;
}
static void emulated_edge_mc(UINT8 *buf, UINT8 *src, int linesize, int block_w, int block_h,
static void emulated_edge_mc(MpegEncContext *s, UINT8 *src, int linesize, int block_w, int block_h,
int src_x, int src_y, int w, int h){
int x, y;
int start_y, start_x, end_y, end_x;
UINT8 *buf= s->edge_emu_buffer;
#if 0
if(s->codec_id!=CODEC_ID_MPEG4 || s->divx_version>=500){
if(block_w < 10){
w= (w+7)&(~7);
h= (h+7)&(~7);
}else{
w= (w+15)&(~15);
h= (h+15)&(~15);
}
}
#endif
if(src_y>= h){
src+= (h-1-src_y)*linesize;
src_y=h-1;
@ -947,7 +978,7 @@ static void emulated_edge_mc(UINT8 *buf, UINT8 *src, int linesize, int block_w,
start_x= MAX(0, -src_x);
end_y= MIN(block_h, h-src_y);
end_x= MIN(block_w, w-src_x);
// copy existing part
for(y=start_y; y<end_y; y++){
for(x=start_x; x<end_x; x++){
@ -1020,7 +1051,7 @@ if(s->quarter_sample)
if(s->flags&CODEC_FLAG_EMU_EDGE){
if(src_x<0 || src_y<0 || src_x + (motion_x&1) + 16 > s->width
|| src_y + (motion_y&1) + h > height){
emulated_edge_mc(s->edge_emu_buffer, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
ptr= s->edge_emu_buffer;
emu=1;
}
@ -1057,14 +1088,14 @@ if(s->quarter_sample)
offset = (src_y * uvlinesize) + src_x + (src_offset >> 1);
ptr = ref_picture[1] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
emulated_edge_mc(s, ptr, uvlinesize, 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, uvlinesize, h >> 1);
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
emulated_edge_mc(s, ptr, uvlinesize, 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, uvlinesize, h >> 1);
@ -1101,7 +1132,7 @@ static inline void qpel_motion(MpegEncContext *s,
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);
emulated_edge_mc(s, ptr, linesize, 17, h+1, src_x, src_y, s->width, height);
ptr= s->edge_emu_buffer;
emu=1;
}
@ -1136,14 +1167,14 @@ static inline void qpel_motion(MpegEncContext *s,
offset = (src_y * s->uvlinesize) + src_x + (src_offset >> 1);
ptr = ref_picture[1] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
emulated_edge_mc(s, ptr, s->uvlinesize, 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, s->uvlinesize, h >> 1);
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, (h>>1)+1, src_x, src_y, s->width>>1, height>>1);
emulated_edge_mc(s, ptr, s->uvlinesize, 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, s->uvlinesize, h >> 1);
@ -1211,7 +1242,7 @@ static inline void MPV_motion(MpegEncContext *s,
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);
emulated_edge_mc(s, ptr, s->linesize, 9, 9, src_x, src_y, s->width, s->height);
ptr= s->edge_emu_buffer;
}
}
@ -1258,7 +1289,7 @@ static inline void MPV_motion(MpegEncContext *s,
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->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
emu=1;
}
@ -1267,7 +1298,7 @@ static inline void MPV_motion(MpegEncContext *s,
ptr = ref_picture[2] + offset;
if(emu){
emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
emulated_edge_mc(s, ptr, s->uvlinesize, 9, 9, src_x, src_y, s->width>>1, s->height>>1);
ptr= s->edge_emu_buffer;
}
pix_op[dxy](dest_cr, ptr, s->uvlinesize, 8);