| 106 | } |
| 107 | |
| 108 | void testCorrectDataWritten() { |
| 109 | // use libsndfile to read back the whole blockfile, make sure it matches |
| 110 | // the data we initially wrote |
| 111 | std::cout << "\tVerifying that we wrote what we think we wrote..." << std::flush; |
| 112 | |
| 113 | SF_INFO info1, info2, info3; |
| 114 | memset(&info1, 0, sizeof(info1)); |
| 115 | memset(&info2, 0, sizeof(info2)); |
| 116 | memset(&info3, 0, sizeof(info3)); |
| 117 | |
| 118 | SNDFILE *int16sf = sf_open(int16BlockFile->GetFileName().GetFullPath(), SFM_READ, &info1); |
| 119 | SNDFILE *int24sf = sf_open(int24BlockFile->GetFileName().GetFullPath(), SFM_READ, &info2); |
| 120 | SNDFILE *floatsf = sf_open(floatBlockFile->GetFileName().GetFullPath(), SFM_READ, &info3); |
| 121 | |
| 122 | // First do a read of the entire block |
| 123 | short int16buf[dataLen]; |
| 124 | int int24buf[dataLen]; |
| 125 | float floatbuf[dataLen]; |
| 126 | |
| 127 | sf_read_short(int16sf, int16buf, dataLen); |
| 128 | sf_read_int (int24sf, int24buf, dataLen); |
| 129 | sf_read_float(floatsf, floatbuf, dataLen); |
| 130 | |
| 131 | AssertBuffersEqual(int16buf, int16Data, dataLen); |
| 132 | AssertBuffersEqual(floatbuf, floatData, dataLen); |
| 133 | |
| 134 | // for the 24-bit buffer, libsndfile gives the 24 bits to us in the 3 most significant |
| 135 | // byts of a 32-bit int. So we need to shift them right 8 to get back our 24-bit data. |
| 136 | for( int i = 0; i < dataLen; i++ ) |
| 137 | int24buf[i] = int24buf[i] >> 8; |
| 138 | AssertBuffersEqual(int24buf, int24Data, dataLen); |
| 139 | |
| 140 | sf_close(int16sf); |
| 141 | sf_close(int24sf); |
| 142 | sf_close(floatsf); |
| 143 | |
| 144 | std::cout << "OK\n"; |
| 145 | } |
| 146 | |
| 147 | void testReads() { |
| 148 | // Now use the blockfile's method to read data and compare it to what we originally wrote |