* @param n block index (0-3 are luma, 4-5 are chroma)
* @param dir the ac prediction direction
*/
-void mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
- int dir)
+void ff_mpeg4_pred_ac(MpegEncContext * s, DCTELEM *block, int n,
+ int dir)
{
int i;
int16_t *ac_val, *ac_val1;
* Decode the next video packet.
* @return <0 if something went wrong
*/
-int mpeg4_decode_video_packet_header(MpegEncContext *s)
+int ff_mpeg4_decode_video_packet_header(MpegEncContext *s)
{
int mb_num_bits= av_log2(s->mb_num - 1) + 1;
int header_extension=0, mb_num, len;
if ((cbpc & 16) == 0) {
/* 16x16 motion prediction */
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
if(!s->mcsel){
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;
int i;
s->current_picture.f.mb_type[xy] = MB_TYPE_8x8 | MB_TYPE_L0;
for(i=0;i<4;i++) {
- int16_t *mot_val= h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ int16_t *mot_val= ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
mot_val[0] = mx;
goto not_coded;
if(rvlc){
- rl = &rvlc_rl_intra;
- rl_vlc = rvlc_rl_intra.rl_vlc[0];
+ rl = &ff_rvlc_rl_intra;
+ rl_vlc = ff_rvlc_rl_intra.rl_vlc[0];
}else{
rl = &ff_mpeg4_rl_intra;
rl_vlc = ff_mpeg4_rl_intra.rl_vlc[0];
s->block_last_index[n] = i;
return 0;
}
- if(rvlc) rl = &rvlc_rl_inter;
+ if(rvlc) rl = &ff_rvlc_rl_inter;
else rl = &ff_h263_rl_inter;
scan_table = s->intra_scantable.permutated;
qmul=1;
qadd=0;
if(rvlc){
- rl_vlc = rvlc_rl_inter.rl_vlc[0];
+ rl_vlc = ff_rvlc_rl_inter.rl_vlc[0];
}else{
rl_vlc = ff_h263_rl_inter.rl_vlc[0];
}
qmul = s->qscale << 1;
qadd = (s->qscale - 1) | 1;
if(rvlc){
- rl_vlc = rvlc_rl_inter.rl_vlc[s->qscale];
+ rl_vlc = ff_rvlc_rl_inter.rl_vlc[s->qscale];
}else{
rl_vlc = ff_h263_rl_inter.rl_vlc[s->qscale];
}
i -= i>>31; //if(i == -1) i=0;
}
- mpeg4_pred_ac(s, block, n, dc_pred_dir);
+ ff_mpeg4_pred_ac(s, block, n, dc_pred_dir);
if (s->ac_pred) {
i = 63; /* XXX: not optimal */
}
s->field_select[0][0]= get_bits1(&s->gb);
s->field_select[0][1]= get_bits1(&s->gb);
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y/2, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y/2, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_16x16 | MB_TYPE_L0;
/* 16x16 motion prediction */
s->mv_type = MV_TYPE_16X16;
- h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ ff_h263_pred_motion(s, 0, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->current_picture.f.mb_type[xy] = MB_TYPE_8x8 | MB_TYPE_L0;
s->mv_type = MV_TYPE_8X8;
for(i=0;i<4;i++) {
- mot_val = h263_pred_motion(s, i, 0, &pred_x, &pred_y);
- mx = h263_decode_motion(s, pred_x, s->f_code);
+ mot_val = ff_h263_pred_motion(s, i, 0, &pred_x, &pred_y);
+ mx = ff_h263_decode_motion(s, pred_x, s->f_code);
if (mx >= 0xffff)
return -1;
- my = h263_decode_motion(s, pred_y, s->f_code);
+ my = ff_h263_decode_motion(s, pred_y, s->f_code);
if (my >= 0xffff)
return -1;
s->mv[0][i][0] = mx;
if(USES_LIST(mb_type, 0)){
s->mv_dir = MV_DIR_FORWARD;
- mx = h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);
- my = h263_decode_motion(s, s->last_mv[0][0][1], s->f_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[0][0][0], s->f_code);
+ my = ff_h263_decode_motion(s, s->last_mv[0][0][1], s->f_code);
s->last_mv[0][1][0]= s->last_mv[0][0][0]= s->mv[0][0][0] = mx;
s->last_mv[0][1][1]= s->last_mv[0][0][1]= s->mv[0][0][1] = my;
}
if(USES_LIST(mb_type, 1)){
s->mv_dir |= MV_DIR_BACKWARD;
- mx = h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);
- my = h263_decode_motion(s, s->last_mv[1][0][1], s->b_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[1][0][0], s->b_code);
+ my = ff_h263_decode_motion(s, s->last_mv[1][0][1], s->b_code);
s->last_mv[1][1][0]= s->last_mv[1][0][0]= s->mv[1][0][0] = mx;
s->last_mv[1][1][1]= s->last_mv[1][0][1]= s->mv[1][0][1] = my;
}
s->mv_dir = MV_DIR_FORWARD;
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, s->last_mv[0][i][0] , s->f_code);
- my = h263_decode_motion(s, s->last_mv[0][i][1]/2, s->f_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[0][i][0] , s->f_code);
+ my = ff_h263_decode_motion(s, s->last_mv[0][i][1]/2, s->f_code);
s->last_mv[0][i][0]= s->mv[0][i][0] = mx;
s->last_mv[0][i][1]= (s->mv[0][i][1] = my)*2;
}
s->mv_dir |= MV_DIR_BACKWARD;
for(i=0; i<2; i++){
- mx = h263_decode_motion(s, s->last_mv[1][i][0] , s->b_code);
- my = h263_decode_motion(s, s->last_mv[1][i][1]/2, s->b_code);
+ mx = ff_h263_decode_motion(s, s->last_mv[1][i][0] , s->b_code);
+ my = ff_h263_decode_motion(s, s->last_mv[1][i][1]/2, s->b_code);
s->last_mv[1][i][0]= s->mv[1][i][0] = mx;
s->last_mv[1][i][1]= (s->mv[1][i][1] = my)*2;
}
if(IS_SKIP(mb_type))
mx=my=0;
else{
- mx = h263_decode_motion(s, 0, 1);
- my = h263_decode_motion(s, 0, 1);
+ mx = ff_h263_decode_motion(s, 0, 1);
+ my = ff_h263_decode_motion(s, 0, 1);
}
s->mv_dir = MV_DIR_FORWARD | MV_DIR_BACKWARD | MV_DIRECT;
if(s->pict_type == AV_PICTURE_TYPE_B)
skip_bits_long(gb, s->cplx_estimation_trash_b);
- s->intra_dc_threshold= mpeg4_dc_threshold[ get_bits(gb, 3) ];
+ s->intra_dc_threshold= ff_mpeg4_dc_threshold[ get_bits(gb, 3) ];
if(!s->progressive_sequence){
s->top_field_first= get_bits1(gb);
s->alternate_scan= get_bits1(gb);
if (!done) {
done = 1;
- init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
- init_rl(&rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
- init_rl(&rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
+ ff_init_rl(&ff_mpeg4_rl_intra, ff_mpeg4_static_rl_table_store[0]);
+ ff_init_rl(&ff_rvlc_rl_inter, ff_mpeg4_static_rl_table_store[1]);
+ ff_init_rl(&ff_rvlc_rl_intra, ff_mpeg4_static_rl_table_store[2]);
INIT_VLC_RL(ff_mpeg4_rl_intra, 554);
- INIT_VLC_RL(rvlc_rl_inter, 1072);
- INIT_VLC_RL(rvlc_rl_intra, 1072);
+ INIT_VLC_RL(ff_rvlc_rl_inter, 1072);
+ INIT_VLC_RL(ff_rvlc_rl_intra, 1072);
INIT_VLC_STATIC(&dc_lum, DC_VLC_BITS, 10 /* 13 */,
&ff_mpeg4_DCtab_lum[0][1], 2, 1,
&ff_mpeg4_DCtab_lum[0][0], 2, 1, 512);
&ff_mpeg4_DCtab_chrom[0][1], 2, 1,
&ff_mpeg4_DCtab_chrom[0][0], 2, 1, 512);
INIT_VLC_STATIC(&sprite_trajectory, SPRITE_TRAJ_VLC_BITS, 15,
- &sprite_trajectory_tab[0][1], 4, 2,
- &sprite_trajectory_tab[0][0], 4, 2, 128);
+ &ff_sprite_trajectory_tab[0][1], 4, 2,
+ &ff_sprite_trajectory_tab[0][0], 4, 2, 128);
INIT_VLC_STATIC(&mb_type_b_vlc, MB_TYPE_B_VLC_BITS, 4,
- &mb_type_b_tab[0][1], 2, 1,
- &mb_type_b_tab[0][0], 2, 1, 16);
+ &ff_mb_type_b_tab[0][1], 2, 1,
+ &ff_mb_type_b_tab[0][0], 2, 1, 16);
}
s->h263_pred = 1;