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         struct wav_t {
  36                 std::string filename;
  37                 uint16_t    index;
  38
  39                 int64_t     posabsolute;
  40                 int64_t     length;
  41
  42                 bool operator <(const struct wav_t& other) const {
  43                         return (strcasecmp(this->filename.c_str(),
  44                                         other.filename.c_str()) < 0);
  45                 }
  46
  47                 bool operator ==(const struct wav_t& other) const {
  48                         return (this->filename == other.filename ||
  49                                 this->index == other.index);
  50                 }
  51
  52         };
  53
  54         struct midi_ev_t {
  55                 uint64_t pos;
  56                 uint64_t length;
  57                 uint8_t note;
  58                 uint8_t velocity;
  59         };
  60
  61         typedef struct region {
  62                 std::string name;
  63                 uint16_t    index;
  64                 int64_t     startpos;
  65                 int64_t     sampleoffset;
  66                 int64_t     length;
  67                 wav_t       wave;
  68                 std::vector<midi_ev_t> midi;
  69
  70                 bool operator ==(const struct region& other) {
  71                         return (this->index == other.index);
  72                 }
  73         } region_t;
  74
  75         typedef struct track {
  76                 std::string name;
  77                 uint16_t    index;
  78                 uint8_t     playlist;
  79                 region_t    reg;
  80
  81                 bool operator ==(const struct track& other) {
  82                         return (this->name == other.name);
  83                 }
  84         } track_t;
  85
  86         std::vector<wav_t> audiofiles;
  87         std::vector<region_t> regions;
  88         std::vector<region_t> midiregions;
  89         std::vector<track_t> tracks;
  90         std::vector<track_t> miditracks;
  91
  92         static bool regionexistsin(std::vector<region_t> reg, uint16_t index) {
  93                 std::vector<region_t>::iterator begin = reg.begin();
  94                 std::vector<region_t>::iterator finish = reg.end();
  95                 std::vector<region_t>::iterator found;
  96
  97                 wav_t w = { std::string(""), 0, 0, 0 };
  98                 std::vector<midi_ev_t> m;
  99                 region_t r = { std::string(""), index, 0, 0, 0, w, m};
 100
 101                 if ((found = std::find(begin, finish, r)) != finish) {
 102                         return true;
 103                 }
 104                 return false;
 105         }
 106
 107         static bool wavexistsin(std::vector<wav_t> wv, uint16_t index) {
 108                 std::vector<wav_t>::iterator begin = wv.begin();
 109                 std::vector<wav_t>::iterator finish = wv.end();
 110                 std::vector<wav_t>::iterator found;
 111
 112                 wav_t w = { std::string(""), index, 0, 0 };
 113
 114                 if ((found = std::find(begin, finish, w)) != finish) {
 115                         return true;
 116                 }
 117                 return false;
 118         }
 119
 120         int64_t sessionrate;
 121         int64_t targetrate;
 122         uint8_t version;
 123         uint8_t *product;
 124
 125
 126         unsigned char c0;
 127         unsigned char c1;
 128         unsigned char *ptfunxored;
 129         uint64_t len;
 130
 131 private:
 132         bool foundin(std::string haystack, std::string needle);
 133         int64_t foundat(unsigned char *haystack, uint64_t n, const char *needle);
 134         int parse(void);
 135         bool parse_version();
 136         uint8_t gen_xor_delta(uint8_t xor_value, uint8_t mul, bool negative);
 137         void setrates(void);
 138         void parse5header(void);
 139         void parse7header(void);
 140         void parse8header(void);
 141         void parse9header(void);
 142         void parse10header(void);
 143         void parserest5(void);
 144         void parserest89(void);
 145         void parserest10(void);
 146         void parseaudio5(void);
 147         void parseaudio(void);
 148         void parsemidi(void);
 149         void resort(std::vector<wav_t>& ws);
 150         std::vector<wav_t> actualwavs;
 151         float ratefactor;
 152         std::string extension;
 153         unsigned char key10a;
 154         unsigned char key10b;
 155 };
 156
 157
 158 #endif