static int decode_p_picture_primary_header(VC9Context *v) { /* INTERFRM, FRMCNT, RANGEREDFRM read in caller */ GetBitContext *gb = &v->s.gb; int lowquant, pqindex, status = 0; pqindex = get_bits(gb, 5); if (v->quantizer_mode == QUANT_FRAME_IMPLICIT) v->pq = pquant_table[0][pqindex]; else { v->pq = pquant_table[v->quantizer_mode-1][pqindex]; } if (pqindex < 9) v->halfpq = get_bits(gb, 1); if (v->quantizer_mode == QUANT_FRAME_EXPLICIT) v->pquantizer = get_bits(gb, 1); av_log(v->s.avctx, AV_LOG_DEBUG, "P Frame: QP=%i (+%i/2)\n", v->pq, v->halfpq); if (v->extended_mv == 1) v->mvrange = get_prefix(gb, 0, 3); #if HAS_ADVANCED_PROFILE if (v->profile > PROFILE_MAIN) { if (v->postprocflag) v->postproc = get_bits(gb, 1); } else #endif if (v->multires) v->respic = get_bits(gb, 2); lowquant = (v->pquantizer>12) ? 0 : 1; v->mv_mode = mv_pmode_table[lowquant][get_prefix(gb, 1, 4)]; if (v->mv_mode == MV_PMODE_INTENSITY_COMP) { v->mv_mode2 = mv_pmode_table[lowquant][get_prefix(gb, 1, 3)]; v->lumscale = get_bits(gb, 6); v->lumshift = get_bits(gb, 6); } return 0; }