mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
Restructure spatial direct MV generation so that the zero predictior shortcut
is closer at the top. 50-130 cpu cycles faster depending on which kind of direct MBs are meassured. Originally committed as revision 21788 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer
parent
edb4df436f
commit
af0d6581e1
@ -151,11 +151,72 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
|
||||
const int is_b8x8 = IS_8X8(*mb_type);
|
||||
unsigned int sub_mb_type;
|
||||
int i8, i4;
|
||||
int ref[2];
|
||||
int mv[2];
|
||||
int list;
|
||||
|
||||
assert(h->ref_list[1][0].reference&3);
|
||||
|
||||
#define MB_TYPE_16x16_OR_INTRA (MB_TYPE_16x16|MB_TYPE_INTRA4x4|MB_TYPE_INTRA16x16|MB_TYPE_INTRA_PCM)
|
||||
|
||||
*mb_type |= MB_TYPE_L0L1;
|
||||
sub_mb_type |= MB_TYPE_L0L1;
|
||||
|
||||
/* ref = min(neighbors) */
|
||||
for(list=0; list<2; list++){
|
||||
int left_ref = h->ref_cache[list][scan8[0] - 1];
|
||||
int top_ref = h->ref_cache[list][scan8[0] - 8];
|
||||
int refc = h->ref_cache[list][scan8[0] - 8 + 4];
|
||||
const int16_t *C= h->mv_cache[list][ scan8[0] - 8 + 4];
|
||||
if(refc == PART_NOT_AVAILABLE){
|
||||
refc = h->ref_cache[list][scan8[0] - 8 - 1];
|
||||
C = h-> mv_cache[list][scan8[0] - 8 - 1];
|
||||
}
|
||||
ref[list] = FFMIN3((unsigned)left_ref, (unsigned)top_ref, (unsigned)refc);
|
||||
if(ref[list] >= 0){
|
||||
//this is just pred_motion() but with the cases removed that cannot happen for direct blocks
|
||||
const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
|
||||
const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
|
||||
|
||||
int match_count= (left_ref==ref[list]) + (top_ref==ref[list]) + (refc==ref[list]);
|
||||
if(match_count > 1){ //most common
|
||||
mv[list]= (mid_pred(A[0], B[0], C[0])&0xFFFF)
|
||||
+(mid_pred(A[1], B[1], C[1])<<16);
|
||||
}else {
|
||||
assert(match_count==1);
|
||||
if(left_ref==ref[list]){
|
||||
mv[list]= *(uint32_t*)A;
|
||||
}else if(top_ref==ref[list]){
|
||||
mv[list]= *(uint32_t*)B;
|
||||
}else{
|
||||
mv[list]= *(uint32_t*)C;
|
||||
}
|
||||
}
|
||||
}else{
|
||||
int mask= ~(MB_TYPE_L0 << (2*list));
|
||||
mv[list] = 0;
|
||||
ref[list] = -1;
|
||||
if(!is_b8x8)
|
||||
*mb_type &= mask;
|
||||
sub_mb_type &= mask;
|
||||
}
|
||||
}
|
||||
if(ref[0] < 0 && ref[1] < 0){
|
||||
ref[0] = ref[1] = 0;
|
||||
if(!is_b8x8)
|
||||
*mb_type |= MB_TYPE_L0L1;
|
||||
sub_mb_type |= MB_TYPE_L0L1;
|
||||
}
|
||||
|
||||
if(!is_b8x8 && (mv[0]|mv[1]) == 0){
|
||||
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
|
||||
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
|
||||
fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
|
||||
fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
|
||||
*mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2;
|
||||
return;
|
||||
}
|
||||
|
||||
if(IS_INTERLACED(h->ref_list[1][0].mb_type[mb_xy])){ // AFL/AFR/FR/FL -> AFL/FL
|
||||
if(!IS_INTERLACED(*mb_type)){ // AFR/FR -> AFL/FL
|
||||
mb_xy= s->mb_x + ((s->mb_y&~1) + h->col_parity)*s->mb_stride;
|
||||
@ -172,31 +233,31 @@ static void pred_spatial_direct_motion(H264Context * const h, int *mb_type){
|
||||
b8_stride *= 3;
|
||||
b4_stride *= 6;
|
||||
|
||||
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
||||
sub_mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
||||
if( (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)
|
||||
&& (mb_type_col[1] & MB_TYPE_16x16_OR_INTRA)
|
||||
&& !is_b8x8){
|
||||
*mb_type |= MB_TYPE_16x8 |MB_TYPE_L0L1|MB_TYPE_DIRECT2; /* B_16x8 */
|
||||
*mb_type |= MB_TYPE_16x8 |MB_TYPE_DIRECT2; /* B_16x8 */
|
||||
}else{
|
||||
*mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
|
||||
*mb_type |= MB_TYPE_8x8;
|
||||
}
|
||||
}else{ // AFR/FR -> AFR/FR
|
||||
single_col:
|
||||
mb_type_col[0] =
|
||||
mb_type_col[1] = h->ref_list[1][0].mb_type[mb_xy];
|
||||
|
||||
sub_mb_type = MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
||||
sub_mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_SUB_8x8 */
|
||||
if(!is_b8x8 && (mb_type_col[0] & MB_TYPE_16x16_OR_INTRA)){
|
||||
*mb_type |= MB_TYPE_16x16|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_16x16 */
|
||||
*mb_type |= MB_TYPE_16x16|MB_TYPE_DIRECT2; /* B_16x16 */
|
||||
}else if(!is_b8x8 && (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16))){
|
||||
*mb_type |= MB_TYPE_L0L1|MB_TYPE_DIRECT2 | (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16));
|
||||
*mb_type |= MB_TYPE_DIRECT2 | (mb_type_col[0] & (MB_TYPE_16x8|MB_TYPE_8x16));
|
||||
}else{
|
||||
if(!h->sps.direct_8x8_inference_flag){
|
||||
/* FIXME save sub mb types from previous frames (or derive from MVs)
|
||||
* so we know exactly what block size to use */
|
||||
sub_mb_type = MB_TYPE_8x8|MB_TYPE_P0L0|MB_TYPE_P0L1|MB_TYPE_DIRECT2; /* B_SUB_4x4 */
|
||||
sub_mb_type += (MB_TYPE_8x8-MB_TYPE_16x16); /* B_SUB_4x4 */
|
||||
}
|
||||
*mb_type |= MB_TYPE_8x8|MB_TYPE_L0L1;
|
||||
*mb_type |= MB_TYPE_8x8;
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -214,64 +275,8 @@ single_col:
|
||||
}
|
||||
}
|
||||
|
||||
{
|
||||
int ref[2];
|
||||
int mv[2];
|
||||
int list;
|
||||
|
||||
/* ref = min(neighbors) */
|
||||
for(list=0; list<2; list++){
|
||||
int left_ref = h->ref_cache[list][scan8[0] - 1];
|
||||
int top_ref = h->ref_cache[list][scan8[0] - 8];
|
||||
int refc = h->ref_cache[list][scan8[0] - 8 + 4];
|
||||
const int16_t *C= h->mv_cache[list][ scan8[0] - 8 + 4];
|
||||
if(refc == PART_NOT_AVAILABLE){
|
||||
refc = h->ref_cache[list][scan8[0] - 8 - 1];
|
||||
C = h-> mv_cache[list][scan8[0] - 8 - 1];
|
||||
}
|
||||
ref[list] = FFMIN3((unsigned)left_ref, (unsigned)top_ref, (unsigned)refc);
|
||||
if(ref[list] >= 0){
|
||||
//this is just pred_motion() but with the cases removed that cannot happen for direct blocks
|
||||
const int16_t * const A= h->mv_cache[list][ scan8[0] - 1 ];
|
||||
const int16_t * const B= h->mv_cache[list][ scan8[0] - 8 ];
|
||||
|
||||
int match_count= (left_ref==ref[list]) + (top_ref==ref[list]) + (refc==ref[list]);
|
||||
if(match_count > 1){ //most common
|
||||
mv[list]= (mid_pred(A[0], B[0], C[0])&0xFFFF)
|
||||
+(mid_pred(A[1], B[1], C[1])<<16);
|
||||
}else {
|
||||
assert(match_count==1);
|
||||
if(left_ref==ref[list]){
|
||||
mv[list]= *(uint32_t*)A;
|
||||
}else if(top_ref==ref[list]){
|
||||
mv[list]= *(uint32_t*)B;
|
||||
}else{
|
||||
mv[list]= *(uint32_t*)C;
|
||||
}
|
||||
}
|
||||
}else{
|
||||
int mask= ~(MB_TYPE_L0 << (2*list));
|
||||
mv[list] = 0;
|
||||
ref[list] = -1;
|
||||
if(!is_b8x8)
|
||||
*mb_type &= mask;
|
||||
sub_mb_type &= mask;
|
||||
}
|
||||
}
|
||||
if(ref[0] < 0 && ref[1] < 0){
|
||||
ref[0] = ref[1] = 0;
|
||||
if(!is_b8x8)
|
||||
*mb_type |= MB_TYPE_L0L1;
|
||||
sub_mb_type |= MB_TYPE_L0L1;
|
||||
}
|
||||
|
||||
if(!is_b8x8 && (mv[0]|mv[1]) == 0){
|
||||
fill_rectangle(&h->ref_cache[0][scan8[0]], 4, 4, 8, (uint8_t)ref[0], 1);
|
||||
fill_rectangle(&h->ref_cache[1][scan8[0]], 4, 4, 8, (uint8_t)ref[1], 1);
|
||||
fill_rectangle(&h->mv_cache[0][scan8[0]], 4, 4, 8, 0, 4);
|
||||
fill_rectangle(&h->mv_cache[1][scan8[0]], 4, 4, 8, 0, 4);
|
||||
*mb_type= (*mb_type & ~(MB_TYPE_8x8|MB_TYPE_16x8|MB_TYPE_8x16|MB_TYPE_P1L0|MB_TYPE_P1L1))|MB_TYPE_16x16|MB_TYPE_DIRECT2;
|
||||
}else if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
|
||||
if(IS_INTERLACED(*mb_type) != IS_INTERLACED(mb_type_col[0])){
|
||||
int n=0;
|
||||
for(i8=0; i8<4; i8++){
|
||||
int x8 = i8&1;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user