libs/ptformat/ptfformat.h

   1 /*
   2     Copyright (C) 2015  Damien Zammit
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 3 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14 */
  15 #ifndef PTFFORMAT_H
  16 #define PTFFORMAT_H
  17
  18 #include <string>
  19 #include <cstring>
  20 #include <algorithm>
  21 #include <vector>
  22 #include <stdint.h>
  23 #include "ptformat/visibility.h"
  24
  25 class LIBPTFORMAT_API PTFFormat {
  26 public:
  27         PTFFormat();
  28         ~PTFFormat();
  29
  30         /* Return values:       0            success
  31                                 -1           could not open file as ptf
  32         */
  33         int load(std::string path, int64_t targetsr);
  34
  35         typedef struct wav {
  36                 std::string filename;
  37                 uint16_t    index;
  38
  39                 int64_t     posabsolute;
  40                 int64_t     length;
  41
  42                 bool operator <(const struct wav& other) const {
  43                         return (strcasecmp(this->filename.c_str(),
  44                                         other.filename.c_str()) < 0);
  45                 }
  46
  47                 bool operator ==(const struct wav& other) const {
  48                         return (this->filename == other.filename ||
  49                                 this->index == other.index);
  50                 }
  51
  52         } wav_t;
  53
  54         typedef struct region {
  55                 std::string name;
  56                 uint16_t    index;
  57                 int64_t     startpos;
  58                 int64_t     sampleoffset;
  59                 int64_t     length;
  60                 wav_t       wave;
  61
  62                 bool operator ==(const struct region& other) {
  63                         return (this->index == other.index);
  64                 }
  65         } region_t;
  66
  67         typedef struct track {
  68                 track ()
  69                         : index (0)
  70                         , playlist (0)
  71                 {
  72                         memset ((void*)&reg, 0, sizeof(region_t));
  73                 }
  74
  75                 track (std::string n, uint16_t i, uint8_t p, region_t *r)
  76                         : name (n)
  77                         , index (i)
  78                         , playlist (p)
  79                 {
  80                         set_region (r);
  81                 }
  82
  83                 void set_region (region_t *r) {
  84                         memcpy ((void*)&reg, (void*)r, sizeof(region_t));
  85                 }
  86
  87                 std::string name;
  88                 uint16_t    index;
  89                 uint8_t     playlist;
  90                 region_t    reg;
  91
  92                 bool operator ==(const struct track& other) {
  93                         return (this->name == other.name);
  94                 }
  95         } track_t;
  96
  97         std::vector<wav_t> audiofiles;
  98         std::vector<region_t> regions;
  99         std::vector<track_t> tracks;
 100
 101         static bool regionexistsin(std::vector<region_t> reg, uint16_t index) {
 102                 std::vector<region_t>::iterator begin = reg.begin();
 103                 std::vector<region_t>::iterator finish = reg.end();
 104                 std::vector<region_t>::iterator found;
 105
 106                 wav_t w = { std::string(""), 0, 0, 0 };
 107                 region_t r = { std::string(""), index, 0, 0, 0, w };
 108
 109                 if ((found = std::find(begin, finish, r)) != finish) {
 110                         return true;
 111                 }
 112                 return false;
 113         }
 114
 115         static bool wavexistsin(std::vector<wav_t> wv, uint16_t index) {
 116                 std::vector<wav_t>::iterator begin = wv.begin();
 117                 std::vector<wav_t>::iterator finish = wv.end();
 118                 std::vector<wav_t>::iterator found;
 119
 120                 wav_t w = { std::string(""), index, 0, 0 };
 121
 122                 if ((found = std::find(begin, finish, w)) != finish) {
 123                         return true;
 124                 }
 125                 return false;
 126         }
 127
 128         int64_t sessionrate;
 129         int64_t targetrate;
 130         uint8_t version;
 131
 132         unsigned char c0;
 133         unsigned char c1;
 134         unsigned char *ptfunxored;
 135         uint64_t len;
 136
 137 private:
 138         bool foundin(std::string haystack, std::string needle);
 139         void parse(void);
 140         void unxor10(void);
 141         void setrates(void);
 142         void parse5header(void);
 143         void parse7header(void);
 144         void parse8header(void);
 145         void parse9header(void);
 146         void parse10header(void);
 147         void parserest5(void);
 148         void parserest89(void);
 149         void parserest10(void);
 150         void parseaudio5(void);
 151         void parseaudio(void);
 152         void resort(std::vector<wav_t> *ws);
 153         uint8_t mostfrequent(uint32_t start, uint32_t stop);
 154         std::vector<wav_t> actualwavs;
 155         float ratefactor;
 156         std::string extension;
 157         unsigned char key10a;
 158         unsigned char key10b;
 159 };
 160
 161
 162 #endif