コード例 #1
0
ファイル: CodeBook.cs プロジェクト: vardrop/KWEngine2
        /*
         * int init_encode(StaticCodeBook s){
         *      //memset(c,0,sizeof(codebook));
         *      c=s;
         *      entries=s.entries;
         *      dim=s.dim;
         *      codelist=make_words(s.lengthlist, s.entries);
         *      valuelist=s.unquantize();
         *      return(0);
         * }
         */

        internal int init_decode(StaticCodeBook s)
        {
            //memset(c,0,sizeof(codebook));
            c         = s;
            entries   = s.entries;
            dim       = s.dim;
            valuelist = s.unquantize();

            decode_tree = make_decode_tree();
            if (decode_tree == null)
            {
                //goto err_out;
                clear();
                return(-1);
            }
            return(0);
            //  err_out:
            //    vorbis_book_clear(c);
            //    return(-1);
        }
コード例 #2
0
        // all of the real encoding details are here.  The modes, books,
        // everything
        int unpack_books(csBuffer opb)
        {
            //d* codebooks
            books = opb.read(8) + 1;

            if (book_param == null || book_param.Length != books)
            {
                book_param = new StaticCodeBook[books];
            }
            for (int i = 0; i < books; i++)
            {
                book_param[i] = new StaticCodeBook();
                if (book_param[i].unpack(opb) != 0)
                {
                    //goto err_out;
                    clear();
                    return(-1);
                }
            }

            // time backend settings
            times = opb.read(6) + 1;
            if (time_type == null || time_type.Length != times)
            {
                time_type = new int[times];
            }
            if (time_param == null || time_param.Length != times)
            {
                time_param = new Object[times];
            }
            for (int i = 0; i < times; i++)
            {
                time_type[i] = opb.read(16);
                if (time_type[i] < 0 || time_type[i] >= VI_TIMEB)
                {
                    //goto err_out;
                    clear();
                    return(-1);
                }
                time_param[i] = FuncTime.time_P[time_type[i]].unpack(this, opb);
                if (time_param[i] == null)
                {
                    //goto err_out;
                    clear();
                    return(-1);
                }
            }

            // floor backend settings
            floors = opb.read(6) + 1;
            if (floor_type == null || floor_type.Length != floors)
            {
                floor_type = new int[floors];
            }
            if (floor_param == null || floor_param.Length != floors)
            {
                floor_param = new Object[floors];
            }

            for (int i = 0; i < floors; i++)
            {
                floor_type[i] = opb.read(16);
                if (floor_type[i] < 0 || floor_type[i] >= VI_FLOORB)
                {
                    //goto err_out;
                    clear();
                    return(-1);
                }

                floor_param[i] = FuncFloor.floor_P[floor_type[i]].unpack(this, opb);
                if (floor_param[i] == null)
                {
                    //goto err_out;
                    clear();
                    return(-1);
                }
            }

            // residue backend settings
            residues = opb.read(6) + 1;

            if (residue_type == null || residue_type.Length != residues)
            {
                residue_type = new int[residues];
            }

            if (residue_param == null || residue_param.Length != residues)
            {
                residue_param = new Object[residues];
            }

            for (int i = 0; i < residues; i++)
            {
                residue_type[i] = opb.read(16);
                if (residue_type[i] < 0 || residue_type[i] >= VI_RESB)
                {
                    //	goto err_out;
                    clear();
                    return(-1);
                }
                residue_param[i] = FuncResidue.residue_P[residue_type[i]].unpack(this, opb);
                if (residue_param[i] == null)
                {
                    //	goto err_out;
                    clear();
                    return(-1);
                }
            }

            // map backend settings
            maps = opb.read(6) + 1;
            if (map_type == null || map_type.Length != maps)
            {
                map_type = new int[maps];
            }
            if (map_param == null || map_param.Length != maps)
            {
                map_param = new Object[maps];
            }
            for (int i = 0; i < maps; i++)
            {
                map_type[i] = opb.read(16);
                if (map_type[i] < 0 || map_type[i] >= VI_MAPB)
                {
                    //	goto err_out;
                    clear();
                    return(-1);
                }
                map_param[i] = FuncMapping.mapping_P[map_type[i]].unpack(this, opb);
                if (map_param[i] == null)
                {
                    //    goto err_out;
                    clear();
                    return(-1);
                }
            }

            // mode settings
            modes = opb.read(6) + 1;
            if (mode_param == null || mode_param.Length != modes)
            {
                mode_param = new InfoMode[modes];
            }
            for (int i = 0; i < modes; i++)
            {
                mode_param[i]               = new InfoMode();
                mode_param[i].blockflag     = opb.read(1);
                mode_param[i].windowtype    = opb.read(16);
                mode_param[i].transformtype = opb.read(16);
                mode_param[i].mapping       = opb.read(8);

                if ((mode_param[i].windowtype >= VI_WINDOWB) ||
                    (mode_param[i].transformtype >= VI_WINDOWB) ||
                    (mode_param[i].mapping >= maps))
                {
                    //      goto err_out;
                    clear();
                    return(-1);
                }
            }

            if (opb.read(1) != 1)
            {
                //goto err_out; // top level EOP check
                clear();
                return(-1);
            }

            return(0);
            // err_out:
            //  vorbis_info_clear(vi);
            //  return(-1);
        }