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ffmpeg.wasm-core
Commit a7ac9c2f authored by Michael Niedermayer's avatar Michael Niedermayer
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Move 3 direct MV related functions that i left out from h263.c to mpeg4video.c. 

Originally committed as revision 21104 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent b2f4b043
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Showing with 106 additions and 100 deletions
libavcodec/h263.c
View file @ a7ac9c2f
......@@ -341,104 +341,6 @@ void ff_clean_h263_qscales(MpegEncContext *s){
#endif //CONFIG_ENCODERS
#define tab_size ((signed)FF_ARRAY_ELEMS(s->direct_scale_mv[0]))
#define tab_bias (tab_size/2)
//used by mpeg4 and rv10 decoder
void ff_mpeg4_init_direct_mv(MpegEncContext *s){
int i;
for(i=0; i<tab_size; i++){
s->direct_scale_mv[0][i] = (i-tab_bias)*s->pb_time/s->pp_time;
s->direct_scale_mv[1][i] = (i-tab_bias)*(s->pb_time-s->pp_time)/s->pp_time;
}
}
static inline void ff_mpeg4_set_one_direct_mv(MpegEncContext *s, int mx, int my, int i){
int xy= s->block_index[i];
uint16_t time_pp= s->pp_time;
uint16_t time_pb= s->pb_time;
int p_mx, p_my;
p_mx= s->next_picture.motion_val[0][xy][0];
if((unsigned)(p_mx + tab_bias) < tab_size){
s->mv[0][i][0] = s->direct_scale_mv[0][p_mx + tab_bias] + mx;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - p_mx
: s->direct_scale_mv[1][p_mx + tab_bias];
}else{
s->mv[0][i][0] = p_mx*time_pb/time_pp + mx;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - p_mx
: p_mx*(time_pb - time_pp)/time_pp;
}
p_my= s->next_picture.motion_val[0][xy][1];
if((unsigned)(p_my + tab_bias) < tab_size){
s->mv[0][i][1] = s->direct_scale_mv[0][p_my + tab_bias] + my;
s->mv[1][i][1] = my ? s->mv[0][i][1] - p_my
: s->direct_scale_mv[1][p_my + tab_bias];
}else{
s->mv[0][i][1] = p_my*time_pb/time_pp + my;
s->mv[1][i][1] = my ? s->mv[0][i][1] - p_my
: p_my*(time_pb - time_pp)/time_pp;
}
}
#undef tab_size
#undef tab_bias
/**
*
* @return the mb_type
*/
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
const int mb_index= s->mb_x + s->mb_y*s->mb_stride;
const int colocated_mb_type= s->next_picture.mb_type[mb_index];
uint16_t time_pp;
uint16_t time_pb;
int i;
//FIXME avoid divides
// try special case with shifts for 1 and 3 B-frames?
if(IS_8X8(colocated_mb_type)){
s->mv_type = MV_TYPE_8X8;
for(i=0; i<4; i++){
ff_mpeg4_set_one_direct_mv(s, mx, my, i);
}
return MB_TYPE_DIRECT2 | MB_TYPE_8x8 | MB_TYPE_L0L1;
} else if(IS_INTERLACED(colocated_mb_type)){
s->mv_type = MV_TYPE_FIELD;
for(i=0; i<2; i++){
int field_select= s->next_picture.ref_index[0][s->block_index[2*i]];
s->field_select[0][i]= field_select;
s->field_select[1][i]= i;
if(s->top_field_first){
time_pp= s->pp_field_time - field_select + i;
time_pb= s->pb_field_time - field_select + i;
}else{
time_pp= s->pp_field_time + field_select - i;
time_pb= s->pb_field_time + field_select - i;
}
s->mv[0][i][0] = s->p_field_mv_table[i][0][mb_index][0]*time_pb/time_pp + mx;
s->mv[0][i][1] = s->p_field_mv_table[i][0][mb_index][1]*time_pb/time_pp + my;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->p_field_mv_table[i][0][mb_index][0]
: s->p_field_mv_table[i][0][mb_index][0]*(time_pb - time_pp)/time_pp;
s->mv[1][i][1] = my ? s->mv[0][i][1] - s->p_field_mv_table[i][0][mb_index][1]
: s->p_field_mv_table[i][0][mb_index][1]*(time_pb - time_pp)/time_pp;
}
return MB_TYPE_DIRECT2 | MB_TYPE_16x8 | MB_TYPE_L0L1 | MB_TYPE_INTERLACED;
}else{
ff_mpeg4_set_one_direct_mv(s, mx, my, 0);
s->mv[0][1][0] = s->mv[0][2][0] = s->mv[0][3][0] = s->mv[0][0][0];
s->mv[0][1][1] = s->mv[0][2][1] = s->mv[0][3][1] = s->mv[0][0][1];
s->mv[1][1][0] = s->mv[1][2][0] = s->mv[1][3][0] = s->mv[1][0][0];
s->mv[1][1][1] = s->mv[1][2][1] = s->mv[1][3][1] = s->mv[1][0][1];
if((s->avctx->workaround_bugs & FF_BUG_DIRECT_BLOCKSIZE) || !s->quarter_sample)
s->mv_type= MV_TYPE_16X16;
else
s->mv_type= MV_TYPE_8X8;
return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1; //Note see prev line
}
}
void ff_h263_update_motion_val(MpegEncContext * s){
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
//FIXME a lot of that is only needed for !low_delay
......
libavcodec/mpeg4video.c
View file @ a7ac9c2f
......@@ -70,3 +70,102 @@ void ff_mpeg4_clean_buffers(MpegEncContext *s)
s->last_mv[1][0][0]=
s->last_mv[1][0][1]= 0;
}
#define tab_size ((signed)FF_ARRAY_ELEMS(s->direct_scale_mv[0]))
#define tab_bias (tab_size/2)
//used by mpeg4 and rv10 decoder
void ff_mpeg4_init_direct_mv(MpegEncContext *s){
int i;
for(i=0; i<tab_size; i++){
s->direct_scale_mv[0][i] = (i-tab_bias)*s->pb_time/s->pp_time;
s->direct_scale_mv[1][i] = (i-tab_bias)*(s->pb_time-s->pp_time)/s->pp_time;
}
}
static inline void ff_mpeg4_set_one_direct_mv(MpegEncContext *s, int mx, int my, int i){
int xy= s->block_index[i];
uint16_t time_pp= s->pp_time;
uint16_t time_pb= s->pb_time;
int p_mx, p_my;
p_mx= s->next_picture.motion_val[0][xy][0];
if((unsigned)(p_mx + tab_bias) < tab_size){
s->mv[0][i][0] = s->direct_scale_mv[0][p_mx + tab_bias] + mx;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - p_mx
: s->direct_scale_mv[1][p_mx + tab_bias];
}else{
s->mv[0][i][0] = p_mx*time_pb/time_pp + mx;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - p_mx
: p_mx*(time_pb - time_pp)/time_pp;
}
p_my= s->next_picture.motion_val[0][xy][1];
if((unsigned)(p_my + tab_bias) < tab_size){
s->mv[0][i][1] = s->direct_scale_mv[0][p_my + tab_bias] + my;
s->mv[1][i][1] = my ? s->mv[0][i][1] - p_my
: s->direct_scale_mv[1][p_my + tab_bias];
}else{
s->mv[0][i][1] = p_my*time_pb/time_pp + my;
s->mv[1][i][1] = my ? s->mv[0][i][1] - p_my
: p_my*(time_pb - time_pp)/time_pp;
}
}
#undef tab_size
#undef tab_bias
/**
*
* @return the mb_type
*/
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my){
const int mb_index= s->mb_x + s->mb_y*s->mb_stride;
const int colocated_mb_type= s->next_picture.mb_type[mb_index];
uint16_t time_pp;
uint16_t time_pb;
int i;
//FIXME avoid divides
// try special case with shifts for 1 and 3 B-frames?
if(IS_8X8(colocated_mb_type)){
s->mv_type = MV_TYPE_8X8;
for(i=0; i<4; i++){
ff_mpeg4_set_one_direct_mv(s, mx, my, i);
}
return MB_TYPE_DIRECT2 | MB_TYPE_8x8 | MB_TYPE_L0L1;
} else if(IS_INTERLACED(colocated_mb_type)){
s->mv_type = MV_TYPE_FIELD;
for(i=0; i<2; i++){
int field_select= s->next_picture.ref_index[0][s->block_index[2*i]];
s->field_select[0][i]= field_select;
s->field_select[1][i]= i;
if(s->top_field_first){
time_pp= s->pp_field_time - field_select + i;
time_pb= s->pb_field_time - field_select + i;
}else{
time_pp= s->pp_field_time + field_select - i;
time_pb= s->pb_field_time + field_select - i;
}
s->mv[0][i][0] = s->p_field_mv_table[i][0][mb_index][0]*time_pb/time_pp + mx;
s->mv[0][i][1] = s->p_field_mv_table[i][0][mb_index][1]*time_pb/time_pp + my;
s->mv[1][i][0] = mx ? s->mv[0][i][0] - s->p_field_mv_table[i][0][mb_index][0]
: s->p_field_mv_table[i][0][mb_index][0]*(time_pb - time_pp)/time_pp;
s->mv[1][i][1] = my ? s->mv[0][i][1] - s->p_field_mv_table[i][0][mb_index][1]
: s->p_field_mv_table[i][0][mb_index][1]*(time_pb - time_pp)/time_pp;
}
return MB_TYPE_DIRECT2 | MB_TYPE_16x8 | MB_TYPE_L0L1 | MB_TYPE_INTERLACED;
}else{
ff_mpeg4_set_one_direct_mv(s, mx, my, 0);
s->mv[0][1][0] = s->mv[0][2][0] = s->mv[0][3][0] = s->mv[0][0][0];
s->mv[0][1][1] = s->mv[0][2][1] = s->mv[0][3][1] = s->mv[0][0][1];
s->mv[1][1][0] = s->mv[1][2][0] = s->mv[1][3][0] = s->mv[1][0][0];
s->mv[1][1][1] = s->mv[1][2][1] = s->mv[1][3][1] = s->mv[1][0][1];
if((s->avctx->workaround_bugs & FF_BUG_DIRECT_BLOCKSIZE) || !s->quarter_sample)
s->mv_type= MV_TYPE_16X16;
else
s->mv_type= MV_TYPE_8X8;
return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1; //Note see prev line
}
}
libavcodec/mpeg4video.h
View file @ a7ac9c2f
......@@ -104,6 +104,13 @@ void ff_clean_mpeg4_qscales(MpegEncContext *s);
int ff_mpeg4_decode_partitions(MpegEncContext *s);
int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s);
int mpeg4_decode_video_packet_header(MpegEncContext *s);
void ff_mpeg4_init_direct_mv(MpegEncContext *s);
/**
*
* @return the mb_type
*/
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
extern uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3];
......
libavcodec/mpegvideo.h
View file @ a7ac9c2f
......@@ -840,8 +840,6 @@ void ff_clean_h263_qscales(MpegEncContext *s);
int ff_h263_resync(MpegEncContext *s);
const uint8_t *ff_h263_find_resync_marker(const uint8_t *p, const uint8_t *end);
int ff_h263_get_gob_height(MpegEncContext *s);
void ff_mpeg4_init_direct_mv(MpegEncContext *s);
int ff_mpeg4_set_direct_mv(MpegEncContext *s, int mx, int my);
void ff_h263_encode_motion(MpegEncContext * s, int val, int f_code);
void ff_init_qscale_tab(MpegEncContext *s);
......
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