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Code Issues Releases Activity

avcodec/rv34: fix edge emu with uv stride <= 25

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-06-13 16:13:13 +02:00
parent 6a65f3fc16
commit 4a0ec85b85
1 changed files with 20 additions and 14 deletions
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34
libavcodec/rv34.c
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@ -672,6 +672,7 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
int dxy, mx, my, umx, umy, lx, ly, uvmx, uvmy, src_x, src_y, uvsrc_x, uvsrc_y;
int mv_pos = s->mb_x * 2 + s->mb_y * 2 * s->b8_stride + mv_off;
int is16x16 = 1;
int emu = 0;
if(thirdpel){
int chroma_mx, chroma_my;
@ -723,8 +724,6 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
if(s->h_edge_pos - (width << 3) < 6 || s->v_edge_pos - (height << 3) < 6 ||
(unsigned)(src_x - !!lx*2) > s->h_edge_pos - !!lx*2 - (width <<3) - 4 ||
(unsigned)(src_y - !!ly*2) > s->v_edge_pos - !!ly*2 - (height<<3) - 4) {
uint8_t *uvbuf = s->edge_emu_buffer + 22 * s->linesize;
srcY -= 2 + 2*s->linesize;
s->vdsp.emulated_edge_mc(s->edge_emu_buffer, srcY,
s->linesize, s->linesize,
@ -732,18 +731,7 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
src_x - 2, src_y - 2,
s->h_edge_pos, s->v_edge_pos);
srcY = s->edge_emu_buffer + 2 + 2*s->linesize;
s->vdsp.emulated_edge_mc(uvbuf, srcU,
s->uvlinesize, s->uvlinesize,
(width << 2) + 1, (height << 2) + 1,
uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
s->vdsp.emulated_edge_mc(uvbuf + 16, srcV,
s->uvlinesize, s->uvlinesize,
(width << 2) + 1, (height << 2) + 1,
uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = uvbuf;
srcV = uvbuf + 16;
emu = 1;
}
if(!weighted){
Y = s->dest[0] + xoff + yoff *s->linesize;
@ -766,6 +754,24 @@ static inline void rv34_mc(RV34DecContext *r, const int block_type,
}
is16x16 = (block_type != RV34_MB_P_8x8) && (block_type != RV34_MB_P_16x8) && (block_type != RV34_MB_P_8x16);
qpel_mc[!is16x16][dxy](Y, srcY, s->linesize);
if (emu) {
uint8_t *uvbuf = s->edge_emu_buffer;
s->vdsp.emulated_edge_mc(uvbuf, srcU,
s->uvlinesize, s->uvlinesize,
(width << 2) + 1, (height << 2) + 1,
uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcU = uvbuf;
uvbuf += 9*s->uvlinesize;
s->vdsp.emulated_edge_mc(uvbuf, srcV,
s->uvlinesize, s->uvlinesize,
(width << 2) + 1, (height << 2) + 1,
uvsrc_x, uvsrc_y,
s->h_edge_pos >> 1, s->v_edge_pos >> 1);
srcV = uvbuf;
}
chroma_mc[2-width] (U, srcU, s->uvlinesize, height*4, uvmx, uvmy);
chroma_mc[2-width] (V, srcV, s->uvlinesize, height*4, uvmx, uvmy);
}