videolan
/
ffmpeg
mirror of https://git.videolan.org/git/ffmpeg.git
1
Fork 0
Code Releases Activity

Fix RV40 chroma MC 

Originally committed as revision 15943 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2008-11-27 07:26:26 +00:00
parent 5bc8ebd3ea
commit f653095bdd
1 changed files with 23 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
libavcodec/rv34.c
View File

@ -644,14 +644,20 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
uvmx = chroma_coeffs[(chroma_mx + (3 << 24)) % 3];
uvmy = chroma_coeffs[(chroma_my + (3 << 24)) % 3];
}else{
int cx, cy;
mx = s->current_picture_ptr->motion_val[dir][mv_pos][0] >> 2;
my = s->current_picture_ptr->motion_val[dir][mv_pos][1] >> 2;
lx = s->current_picture_ptr->motion_val[dir][mv_pos][0] & 3;
ly = s->current_picture_ptr->motion_val[dir][mv_pos][1] & 3;
umx = mx >> 1;
umy = my >> 1;
uvmx = mx & 6;
uvmy = my & 6;
cx = s->current_picture_ptr->motion_val[dir][mv_pos][0] / 2;
cy = s->current_picture_ptr->motion_val[dir][mv_pos][1] / 2;
umx = cx >> 2;
umy = cy >> 2;
uvmx = (cx & 3) << 1;
uvmy = (cy & 3) << 1;
//due to some flaw RV40 uses the same MC compensation routine for H2V2 and H3V3
if(uvmx == 6 && uvmy == 6)
uvmx = uvmy = 4;
}
dxy = ly*4 + lx;
srcY = dir ? s->next_picture_ptr->data[0] : s->last_picture_ptr->data[0];
@ -704,20 +710,22 @@ static void rv34_mc_1mv(RV34DecContext *r, const int block_type,
{
rv34_mc(r, block_type, xoff, yoff, mv_off, width, height, dir, r->rv30,
r->rv30 ? r->s.dsp.put_rv30_tpel_pixels_tab
: r->s.dsp.put_h264_qpel_pixels_tab,
r->s.dsp.put_h264_chroma_pixels_tab);
: r->s.dsp.put_rv40_qpel_pixels_tab,
r->rv30 ? r->s.dsp.put_h264_chroma_pixels_tab
: r->s.dsp.put_rv40_chroma_pixels_tab);
}
static void rv34_mc_2mv(RV34DecContext *r, const int block_type)
{
rv34_mc(r, block_type, 0, 0, 0, 2, 2, 0, r->rv30,
r->rv30 ? r->s.dsp.put_rv30_tpel_pixels_tab
: r->s.dsp.put_h264_qpel_pixels_tab,
: r->s.dsp.put_rv40_qpel_pixels_tab,
r->s.dsp.put_h264_chroma_pixels_tab);
rv34_mc(r, block_type, 0, 0, 0, 2, 2, 1, r->rv30,
r->rv30 ? r->s.dsp.avg_rv30_tpel_pixels_tab
: r->s.dsp.avg_h264_qpel_pixels_tab,
r->s.dsp.avg_h264_chroma_pixels_tab);
: r->s.dsp.avg_rv40_qpel_pixels_tab,
r->rv30 ? r->s.dsp.avg_h264_chroma_pixels_tab
: r->s.dsp.avg_rv40_chroma_pixels_tab);
}
static void rv34_mc_2mv_skip(RV34DecContext *r)
@ -727,12 +735,14 @@ static void rv34_mc_2mv_skip(RV34DecContext *r)
for(i = 0; i < 2; i++){
rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 0, r->rv30,
r->rv30 ? r->s.dsp.put_rv30_tpel_pixels_tab
: r->s.dsp.put_h264_qpel_pixels_tab,
r->s.dsp.put_h264_chroma_pixels_tab);
: r->s.dsp.put_rv40_qpel_pixels_tab,
r->rv30 ? r->s.dsp.put_h264_chroma_pixels_tab
: r->s.dsp.put_rv40_chroma_pixels_tab);
rv34_mc(r, RV34_MB_P_8x8, i*8, j*8, i+j*r->s.b8_stride, 1, 1, 1, r->rv30,
r->rv30 ? r->s.dsp.avg_rv30_tpel_pixels_tab
: r->s.dsp.avg_h264_qpel_pixels_tab,
r->s.dsp.avg_h264_chroma_pixels_tab);
: r->s.dsp.avg_rv40_qpel_pixels_tab,
r->rv30 ? r->s.dsp.avg_h264_chroma_pixels_tab
: r->s.dsp.avg_rv40_chroma_pixels_tab);
}
}