- mracer
- Feb 23, 2004
-
The M racer
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Inside Intel's ipp mpeg2 decoder... nothing wrong with a 40+ line macro to do motion. (to add more fun they put ##stuff)
code:#define FUNC_MC_MBLOCK_420(DIR, METH, FLG) \
Ipp8u *refY = frame_buffer.frame_p_c_n[frame_buffer.buff##DIR].Y_comp_data; \
Ipp8u *refU = frame_buffer.frame_p_c_n[frame_buffer.buff##DIR].U_comp_data; \
Ipp8u *refV = frame_buffer.frame_p_c_n[frame_buffer.buff##DIR].V_comp_data; \
Ipp8u *curY = video->blkCurrYUV[0]; \
Ipp8u *curU = video->blkCurrYUV[1]; \
Ipp8u *curV = video->blkCurrYUV[2]; \
Ipp32s pitch_l = frame_buffer.Y_comp_pitch; \
Ipp32s pitch_c = frame_buffer.U_comp_pitch; \
Ipp32s flag_l, flag_c; \
Ipp32s offs_l, offs_c; \
Ipp16s vec_x, vec_y; \
\
if(video->prediction_type == IPPVC_MC_FRAME) \
{ \
DECODE_MV(video->bs, index##DIR, index##DIR, vec_x, vec_y); \
video->PMV[index##DIR + 4] = video->PMV[index##DIR]; \
video->PMV[index##DIR + 5] = video->PMV[index##DIR + 1]; \
video->trans_output->g_transmb[sequenceHeader.mb_width*video->mb_row+video->mb_col].mvfx=vec_x; \
video->trans_output->g_transmb[sequenceHeader.mb_width*video->mb_row+video->mb_col].mvfy=vec_y; \
\
CALC_OFFSETS_FRAME_420(offs_l, offs_c, flag_l, flag_c, vec_x, vec_y, HP_FLAG_##FLG) \
CHECK_OFFSET_L(offs_l+(vec_x&1), pitch_l, 16+(vec_y&1)) \
\
FUNC_##METH##_HP(16, 16, refY + offs_l, pitch_l, curY, pitch_l, flag_l, 0); \
FUNC_##METH##_HP(8, 8, refU + offs_c, pitch_c, curU, pitch_c, flag_c, 0); \
FUNC_##METH##_HP(8, 8, refV + offs_c, pitch_c, curV, pitch_c, flag_c, 0); \
} \
else \
{ \
Ipp32s pitch_l2 = pitch_l + pitch_l; \
Ipp32s pitch_c2 = pitch_c + pitch_c; \
Ipp32s field_sel0, field_sel1; \
Ipp16s vec1_x, vec1_y; \
\
GET_1BIT(video->bs, field_sel0); \
DECODE_MV_FIELD(video->bs, index##DIR, index##DIR, vec_x, vec_y); \
GET_1BIT(video->bs, field_sel1); \
DECODE_MV_FIELD(video->bs, index##DIR + 4, index##DIR, vec1_x, vec1_y); \
video->trans_output->g_transmb[sequenceHeader.mb_width*video->mb_row+video->mb_col].mvfx=vec_x; \
video->trans_output->g_transmb[sequenceHeader.mb_width*video->mb_row+video->mb_col].mvfy=vec_y; \
\
CALC_OFFSETS_FIELD_420(offs_l, offs_c, flag_l, flag_c, vec_x, vec_y, field_sel0, HP_FLAG_##FLG) \
CHECK_OFFSET_L(offs_l+(vec_x&1), pitch_l2, 8+(vec_y&1)) \
\
FUNC_##METH##_HP(16, 8, refY + offs_l, pitch_l2, curY, pitch_l2, flag_l, 0); \
FUNC_##METH##_HP(8, 4, refU + offs_c, pitch_c2, curU, pitch_c2, flag_c, 0); \
FUNC_##METH##_HP(8, 4, refV + offs_c, pitch_c2, curV, pitch_c2, flag_c, 0); \
\
CALC_OFFSETS_FIELD_420(offs_l, offs_c, flag_l, flag_c, vec1_x, vec1_y, field_sel1, HP_FLAG_##FLG) \
CHECK_OFFSET_L(offs_l+(vec1_x&1), pitch_l2, 8+(vec1_y&1)) \
\
FUNC_##METH##_HP(16, 8, refY + offs_l, pitch_l2, curY + pitch_l, pitch_l2, flag_l, 0); \
FUNC_##METH##_HP(8, 4, refU + offs_c, pitch_c2, curU + pitch_c, pitch_c2, flag_c, 0); \
FUNC_##METH##_HP(8, 4, refV + offs_c, pitch_c2, curV + pitch_c, pitch_c2, flag_c, 0); \
} \
return UMC_OK
mracer fucked around with this message at 13:55 on Apr 3, 2008
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#
¿
Apr 3, 2008 13:53
