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h264: increase dist_scale_factor for up to 32 references

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Compute dist_scale_factor_field only for MBAFF since that is the only
case in which it is used.
This commit is contained in:
Janne Grunau 2012-12-17 21:36:05 +01:00
parent 523c7bd23c
commit 73ad2c2fa7
2 changed files with 11 additions and 8 deletions
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2
libavcodec/h264.h
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@ -364,7 +364,7 @@ typedef struct H264Context {
int direct_spatial_mv_pred;
int col_parity;
int col_fieldoff;
int dist_scale_factor[16];
int dist_scale_factor[32];
int dist_scale_factor_field[2][32];
int map_col_to_list0[2][16 + 32];
int map_col_to_list0_field[2][2][16 + 32];

17
libavcodec/h264_direct.c
View File

@ -54,14 +54,17 @@ void ff_h264_direct_dist_scale_factor(H264Context * const h){
const int poc = h->s.current_picture_ptr->field_poc[ s->picture_structure == PICT_BOTTOM_FIELD ];
const int poc1 = h->ref_list[1][0].poc;
int i, field;
for(field=0; field<2; field++){
const int poc = h->s.current_picture_ptr->field_poc[field];
const int poc1 = h->ref_list[1][0].field_poc[field];
for(i=0; i < 2*h->ref_count[0]; i++)
h->dist_scale_factor_field[field][i^field] = get_scale_factor(h, poc, poc1, i+16);
}
for(i=0; i<h->ref_count[0]; i++){
if (FRAME_MBAFF)
for (field = 0; field < 2; field++){
const int poc = h->s.current_picture_ptr->field_poc[field];
const int poc1 = h->ref_list[1][0].field_poc[field];
for (i = 0; i < 2 * h->ref_count[0]; i++)
h->dist_scale_factor_field[field][i^field] =
get_scale_factor(h, poc, poc1, i+16);
}
for (i = 0; i < h->ref_count[0]; i++){
h->dist_scale_factor[i] = get_scale_factor(h, poc, poc1, i);
}
}