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ffmpeg.wasm-core
Commit e814817b authored by Michael Niedermayer's avatar Michael Niedermayer
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Factor mv/ref compare code out. 

This is a hair slower (0.15% maybe) but i really dont want to have the
identical code duplicated 3 times because gcc adds odd threaded jumps with
register reshuffling and register safe/restore.

Originally committed as revision 21502 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent 31277aeb
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Showing with 26 additions and 80 deletions
libavcodec/h264_loopfilter.c
View file @ e814817b
......@@ -424,6 +424,28 @@ void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
}
}
static int check_mv(H264Context *h, long b_idx, long bn_idx, int mvy_limit){
int l;
int v = 0;
for( l = 0; !v && l < h->list_count; l++ ) {
v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
}
if(h->list_count==2 && v){
v=0;
for( l = 0; !v && l < 2; l++ ) {
int ln= 1-l;
v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
}
}
return v;
}
static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, uint8_t *img_y, uint8_t *img_cb, uint8_t *img_cr, unsigned int linesize, unsigned int uvlinesize, int mb_xy, int mb_type, int mvy_limit, int first_vertical_edge_done, int dir) {
MpegEncContext * const s = &h->s;
......@@ -498,25 +520,8 @@ static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, u
else if( mask_par0 && ((mbm_type & (MB_TYPE_16x16 | (MB_TYPE_8x16 >> dir)))) ) {
int b_idx= 8 + 4;
int bn_idx= b_idx - (dir ? 8:1);
int v = 0;
for( l = 0; !v && l < h->list_count; l++ ) {
v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
}
if(h->list_count==2 && v){
v=0;
for( l = 0; !v && l < 2; l++ ) {
int ln= 1-l;
v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
}
}
bS[0] = bS[1] = bS[2] = bS[3] = v;
bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, 8 + 4, bn_idx, mvy_limit);
mv_done = 1;
}
else
......@@ -534,28 +539,7 @@ static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, u
}
else if(!mv_done)
{
bS[i] = 0;
for( l = 0; l < h->list_count; l++ ) {
if( h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
bS[i] = 1;
break;
}
}
if(h->list_count == 2 && bS[i]){
bS[i] = 0;
for( l = 0; l < 2; l++ ) {
int ln= 1-l;
if( h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {
bS[i] = 1;
break;
}
}
}
bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);
}
}
}
......@@ -612,25 +596,8 @@ static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, u
else if( mask_par0 ) {
int b_idx= 8 + 4 + edge * (dir ? 8:1);
int bn_idx= b_idx - (dir ? 8:1);
int v = 0;
for( l = 0; !v && l < h->list_count; l++ ) {
v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
}
if(h->list_count==2 && v){
v=0;
for( l = 0; !v && l < 2; l++ ) {
int ln= 1-l;
v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
}
}
bS[0] = bS[1] = bS[2] = bS[3] = v;
bS[0] = bS[1] = bS[2] = bS[3] = check_mv(h, b_idx, bn_idx, mvy_limit);
mv_done = 1;
}
else
......@@ -648,28 +615,7 @@ static av_always_inline void filter_mb_dir(H264Context *h, int mb_x, int mb_y, u
}
else if(!mv_done)
{
bS[i] = 0;
for( l = 0; l < h->list_count; l++ ) {
if( h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit ) {
bS[i] = 1;
break;
}
}
if(h->list_count == 2 && bS[i]){
bS[i] = 0;
for( l = 0; l < 2; l++ ) {
int ln= 1-l;
if( h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit ) {
bS[i] = 1;
break;
}
}
}
bS[i] = check_mv(h, b_idx, bn_idx, mvy_limit);
}
}
......
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