* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpeg4video.h"
#include "mpeg4data.h"
-uint8_t ff_mpeg4_static_rl_table_store[3][2][2*MAX_RUN + MAX_LEVEL + 3];
+uint8_t ff_mpeg4_static_rl_table_store[3][2][2 * MAX_RUN + MAX_LEVEL + 3];
-int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s){
- switch(s->pict_type){
- case FF_I_TYPE:
- return 16;
- case FF_P_TYPE:
- case FF_S_TYPE:
- return s->f_code+15;
- case FF_B_TYPE:
- return FFMAX3(s->f_code, s->b_code, 2) + 15;
- default:
- return -1;
+int ff_mpeg4_get_video_packet_prefix_length(MpegEncContext *s)
+{
+ switch (s->pict_type) {
+ case AV_PICTURE_TYPE_I:
+ return 16;
+ case AV_PICTURE_TYPE_P:
+ case AV_PICTURE_TYPE_S:
+ return s->f_code + 15;
+ case AV_PICTURE_TYPE_B:
+ return FFMAX3(s->f_code, s->b_code, 2) + 15;
+ default:
+ return -1;
}
}
{
int c_wrap, c_xy, l_wrap, l_xy;
- l_wrap= s->b8_stride;
- l_xy= (2*s->mb_y-1)*l_wrap + s->mb_x*2 - 1;
- c_wrap= s->mb_stride;
- c_xy= (s->mb_y-1)*c_wrap + s->mb_x - 1;
-
-#if 0
- /* clean DC */
- memsetw(s->dc_val[0] + l_xy, 1024, l_wrap*2+1);
- memsetw(s->dc_val[1] + c_xy, 1024, c_wrap+1);
- memsetw(s->dc_val[2] + c_xy, 1024, c_wrap+1);
-#endif
+ l_wrap = s->b8_stride;
+ l_xy = (2 * s->mb_y - 1) * l_wrap + s->mb_x * 2 - 1;
+ c_wrap = s->mb_stride;
+ c_xy = (s->mb_y - 1) * c_wrap + s->mb_x - 1;
/* clean AC */
- memset(s->ac_val[0] + l_xy, 0, (l_wrap*2+1)*16*sizeof(int16_t));
- memset(s->ac_val[1] + c_xy, 0, (c_wrap +1)*16*sizeof(int16_t));
- memset(s->ac_val[2] + c_xy, 0, (c_wrap +1)*16*sizeof(int16_t));
+ memset(s->ac_val[0] + l_xy, 0, (l_wrap * 2 + 1) * 16 * sizeof(int16_t));
+ memset(s->ac_val[1] + c_xy, 0, (c_wrap + 1) * 16 * sizeof(int16_t));
+ memset(s->ac_val[2] + c_xy, 0, (c_wrap + 1) * 16 * sizeof(int16_t));
/* clean MV */
// we can't clear the MVs as they might be needed by a b frame
-// memset(s->motion_val + l_xy, 0, (l_wrap*2+1)*2*sizeof(int16_t));
-// memset(s->motion_val, 0, 2*sizeof(int16_t)*(2 + s->mb_width*2)*(2 + s->mb_height*2));
- s->last_mv[0][0][0]=
- s->last_mv[0][0][1]=
- s->last_mv[1][0][0]=
- s->last_mv[1][0][1]= 0;
+ s->last_mv[0][0][0] =
+ s->last_mv[0][0][1] =
+ 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)
+#define tab_bias (tab_size / 2)
-//used by mpeg4 and rv10 decoder
-void ff_mpeg4_init_direct_mv(MpegEncContext *s){
+// 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;
+ 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;
+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){
+ 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;
+ } 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_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){
+ 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;
+ } 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;
+ : p_my * (time_pb - time_pp) / time_pp;
}
}
#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];
+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
+ // FIXME avoid divides
// try special case with shifts for 1 and 3 B-frames?
- if(IS_8X8(colocated_mb_type)){
+ if (IS_8X8(colocated_mb_type)) {
s->mv_type = MV_TYPE_8X8;
- for(i=0; i<4; i++){
+ 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)){
+ } 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][4*mb_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;
+ for (i = 0; i < 2; i++) {
+ int field_select = s->next_picture.ref_index[0][4 * mb_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;
+ 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{
+ 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;
+ 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
+ s->mv_type = MV_TYPE_8X8;
+ // Note see prev line
+ return MB_TYPE_DIRECT2 | MB_TYPE_16x16 | MB_TYPE_L0L1;
}
}
-
projects / ffmpeg / blobdiff