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/*************************************************************************** |
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* * |
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* sf2extract tool: Copyright (C) 2015 - 2017 by Christian Schoenebeck * |
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* <cuse@users.sf.net> * |
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* * |
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* SF2 C++ Library: Copyright (C) 2009-2010 by Grigor Iliev * |
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* <grigor@grigoriliev.com> * |
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* * |
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* This program is part of libgig. * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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* * |
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* This program is distributed in the hope that it will be useful, * |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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* GNU General Public License for more details. * |
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* * |
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* You should have received a copy of the GNU General Public License * |
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* along with this program; if not, write to the Free Software * |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, * |
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* MA 02111-1307 USA * |
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***************************************************************************/ |
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|
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#ifdef HAVE_CONFIG_H |
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# include <config.h> |
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#endif |
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|
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#include <iostream> |
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#include <cstdlib> |
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#include <string.h> |
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#include <string> |
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#include <stdlib.h> |
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#include <sys/types.h> |
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#include <sys/stat.h> |
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#include <errno.h> |
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|
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#include "../SF.h" |
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|
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#ifdef _MSC_VER |
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#define S_ISDIR(x) (S_IFDIR & (x)) |
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#define S_IWUSR S_IWRITE |
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#define S_IXUSR S_IEXEC |
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#endif |
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|
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#if POSIX |
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# include <dlfcn.h> |
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#endif |
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|
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// only libsndfile is available for Windows, so we use that for writing the sound files |
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#ifdef WIN32 |
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# define HAVE_SNDFILE 1 |
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#endif // WIN32 |
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|
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// abort compilation here if neither libsndfile nor libaudiofile are available |
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#if !HAVE_SNDFILE && !HAVE_AUDIOFILE |
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# error "Neither libsndfile nor libaudiofile seem to be available!" |
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# error "(HAVE_SNDFILE and HAVE_AUDIOFILE are both false)" |
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#endif |
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|
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// we prefer libsndfile before libaudiofile |
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#if HAVE_SNDFILE |
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# include <sndfile.h> |
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#else |
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# include <audiofile.h> |
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#endif // HAVE_SNDFILE |
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|
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using namespace std; |
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|
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typedef map<unsigned int, bool> OrderMap; |
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|
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void ExtractSamples(sf2::File* gig, char* destdir, OrderMap& selection); |
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int writeWav(sf2::Sample* sample, const char* filename, void* samples, long totalFrameCount, int bitdepth); |
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|
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string ToString(int i) { |
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const int SZ = 64; |
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static char strbuf[SZ]; |
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snprintf(strbuf, SZ, "%d", i); |
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string s = strbuf; |
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return s; |
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} |
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|
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string Revision() { |
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string s = "$Revision$"; |
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return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword |
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} |
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|
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void PrintVersion() { |
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cout << "sf2extract revision " << Revision() << endl; |
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cout << "using " << sf2::libraryName() << " " << sf2::libraryVersion(); |
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#if HAVE_SNDFILE |
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char versionBuffer[128]; |
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sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128); |
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cout << ", " << versionBuffer; |
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#else // use libaudiofile |
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cout << "\nbuilt against libaudiofile " |
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<< LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION; |
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# ifdef LIBAUDIOFILE_MICRO_VERSION |
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cout << "." << LIBAUDIOFILE_MICRO_VERSION; |
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# endif // LIBAUDIOFILE_MICRO_VERSION |
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#endif // HAVE_SNDFILE |
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cout << endl; |
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} |
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|
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static void PrintUsage() { |
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cout << "sf2extract - extracts samples from a SoundFont version 2 file." << endl; |
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cout << endl; |
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cout << "Usage: sf2extract [-v] SF2FILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl; |
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cout << endl; |
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cout << " SF2FILE Input SoundFont (.sf2) file." << endl; |
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cout << endl; |
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cout << " DESTDIR Destination directory where all .wav files shall be written to." << endl; |
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cout << endl; |
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cout << " SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl; |
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cout << " If no sample indices are given, all samples will be extracted" << endl; |
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cout << " (use sf2dump to look for available samples)." << endl; |
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cout << endl; |
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cout << " -v Print version and exit." << endl; |
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cout << endl; |
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} |
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|
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#if !HAVE_SNDFILE // use libaudiofile |
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void* hAFlib; // handle to libaudiofile |
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void openAFlib(void); |
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void closeAFlib(void); |
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// pointers to libaudiofile functions |
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AFfilesetup(*_afNewFileSetup)(void); |
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void(*_afFreeFileSetup)(AFfilesetup); |
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void(*_afInitChannels)(AFfilesetup,int,int); |
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void(*_afInitSampleFormat)(AFfilesetup,int,int,int); |
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void(*_afInitFileFormat)(AFfilesetup,int); |
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void(*_afInitRate)(AFfilesetup,int,double); |
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int(*_afWriteFrames)(AFfilehandle,int,const void*,int); |
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AFfilehandle(*_afOpenFile)(const char*,const char*,AFfilesetup); |
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int(*_afCloseFile)(AFfilehandle file); |
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#endif // !HAVE_SNDFILE |
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|
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int main(int argc, char *argv[]) { |
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OrderMap selectedSamples; |
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if (argc >= 2) { |
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if (argv[1][0] == '-') { |
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switch (argv[1][1]) { |
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case 'v': |
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PrintVersion(); |
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return EXIT_SUCCESS; |
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} |
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} |
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} |
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if (argc < 3) { |
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PrintUsage(); |
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return EXIT_FAILURE; |
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} |
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FILE* hFile = fopen(argv[1], "r"); |
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if (!hFile) { |
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cout << "Invalid input file argument!" << endl; |
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return EXIT_FAILURE; |
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} |
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fclose(hFile); |
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struct stat buf; |
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if (stat(argv[2], &buf) == -1) { |
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cout << "Unable to open DESTDIR: "; |
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switch (errno) { |
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case EACCES: cout << "Permission denied." << endl; |
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break; |
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case ENOENT: cout << "Directory does not exist, or name is an empty string." << endl; |
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break; |
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case ENOMEM: cout << "Insufficient memory to complete the operation." << endl; |
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break; |
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case ENOTDIR: cout << "Is not a directory." << endl; |
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break; |
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default: cout << "Unknown error" << endl; |
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} |
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return EXIT_FAILURE; |
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} else if (!S_ISDIR(buf.st_mode)) { |
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cout << "Unable to open DESTDIR: Is not a directory." << endl; |
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return EXIT_FAILURE; |
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} else if (!(S_IWUSR & buf.st_mode) || !(S_IXUSR & buf.st_mode)) { |
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cout << "Unable to open DESTDIR: Permission denied." << endl; |
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return EXIT_FAILURE; |
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} |
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try { |
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RIFF::File* riff = new RIFF::File(argv[1]); |
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sf2::File* sf = new sf2::File(riff); |
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|
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// assemble list of selected samples (by sample index) |
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if (argc > 3) { // extracting specific samples ... |
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for (int i = 3; i < argc; i++) { |
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unsigned int index = atoi(argv[i]); |
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selectedSamples[index-1] = true; |
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} |
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} else { // extract all samples ... |
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for (int i = 0; i < sf->GetSampleCount(); ++i) |
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selectedSamples[i] = true; |
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} |
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|
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cout << "Extracting samples from \"" << argv[1] << "\" to directory \"" << argv[2] << "\"." << endl << flush; |
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ExtractSamples(sf, argv[2], selectedSamples); |
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cout << "Extraction finished." << endl << flush; |
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delete sf; |
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delete riff; |
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} |
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catch (RIFF::Exception e) { |
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e.PrintMessage(); |
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return EXIT_FAILURE; |
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} |
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catch (...) { |
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cout << "Unknown exception while trying to parse file." << endl; |
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return EXIT_FAILURE; |
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} |
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|
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return EXIT_SUCCESS; |
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} |
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|
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/// Removes spaces from the beginning and end of @a s. |
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inline void stripWhiteSpace(string& s) { |
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// strip white space at the beginning |
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for (int i = 0; i < s.size(); ++i) { |
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if (s[i] != ' ') { |
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s = s.substr(i); |
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break; |
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} |
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} |
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// strip white space at the end |
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for (int i = s.size() - 1; i >= 0; --i) { |
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if (s[i] != ' ') { |
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s = s.substr(0, i+1); |
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break; |
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} |
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} |
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} |
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|
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static bool endsWith(const string& haystack, const string& needle) { |
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if (haystack.size() < needle.size()) return false; |
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return haystack.substr(haystack.size() - needle.size(), needle.size()) == needle; |
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} |
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|
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inline bool hasLeftOrRightMarker(string s) { |
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stripWhiteSpace(s); |
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return endsWith(s, "-L") || endsWith(s, "-R") || |
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endsWith(s, "_L") || endsWith(s, "_R") || |
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endsWith(s, " L") || endsWith(s, " R"); |
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} |
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|
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inline void stripLeftOrRightMarkerAtEnd(string& s) { |
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if (hasLeftOrRightMarker(s)) { |
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s = s.substr(0, s.size() - 2); |
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stripWhiteSpace(s); |
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} |
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} |
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|
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void ExtractSamples(sf2::File* sf, char* destdir, OrderMap& selection) { |
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if (sf->GetSampleCount() <= 0) { |
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cerr << "No samples found in file.\n"; |
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return; |
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} |
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|
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#if !HAVE_SNDFILE // use libaudiofile |
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hAFlib = NULL; |
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openAFlib(); |
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#endif // !HAVE_SNDFILE |
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uint8_t* pWave = NULL; |
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int* pIntWave = NULL; |
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long BufferSize = 0; |
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sf2::Sample::buffer_t tmpBuf; |
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|
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for (int iSample = 0; iSample < sf->GetSampleCount(); ++iSample) { |
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sf2::Sample* pSample = sf->GetSample(iSample); |
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if (selection[iSample] == false) |
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continue; |
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sf2::Sample* pSample2 = |
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(pSample->GetChannelCount() > 1) ? |
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sf->GetSample(pSample->SampleLink) : NULL; |
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|
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string name = pSample->Name; |
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if (pSample2) |
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stripLeftOrRightMarkerAtEnd(name); |
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|
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long totalFrameCount = pSample->GetTotalFrameCount(); |
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if (pSample2 && pSample2->GetTotalFrameCount() > totalFrameCount) |
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totalFrameCount = pSample2->GetTotalFrameCount(); |
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|
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string filename = destdir; |
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if (filename[filename.size() - 1] != '/') filename += "/"; |
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filename += ToString(iSample+1); |
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filename += "_"; |
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if (name == "") { |
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name = "(NO NAME)"; |
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filename += "NONAME"; |
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} else { |
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filename += name; |
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name.insert(0, "\""); |
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name += "\""; |
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} |
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filename += ".wav"; |
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const int bitdepth = |
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pSample->GetFrameSize() / pSample->GetChannelCount() * 8; |
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cout << "Extracting Sample " << (iSample+1) << ") " << name << " (" |
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<< bitdepth << "Bits, " << pSample->SampleRate << "Hz, " << pSample->GetChannelCount() << " Channels, " << totalFrameCount << " Samples"; |
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if (pSample->HasLoops()) { |
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cout << ", LoopStart " << pSample->StartLoop |
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<< ", LoopEnd " << pSample->EndLoop; |
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} |
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cout << ")..." << flush; |
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|
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// some sanity checks whether the stereo sample pair matches |
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if (pSample2) { |
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if (pSample->GetFrameSize() != pSample2->GetFrameSize() || |
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pSample->GetChannelCount() != pSample2->GetChannelCount()) |
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{ |
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cerr << "Error: stereo sample pair does not match [ignoring]\n"; |
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continue; |
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} |
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} |
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|
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const long neededsize = (bitdepth == 24) ? |
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totalFrameCount * pSample->GetChannelCount() * sizeof(int) : |
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totalFrameCount * pSample->GetFrameSize(); |
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if (BufferSize < neededsize) { |
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if (pWave) delete[] pWave; |
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pWave = new uint8_t[neededsize]; |
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BufferSize = neededsize; |
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} |
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pIntWave = (int*)pWave; |
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memset(pWave, 0, neededsize); |
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|
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pSample->SetPos(0); |
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unsigned long nRead = pSample->Read(pWave, pSample->GetTotalFrameCount()); |
| 330 |
if (nRead <= 0) |
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throw RIFF::Exception("Could not load sample data."); |
| 332 |
|
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if (pSample2) { |
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if (tmpBuf.Size < neededsize) { |
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if (tmpBuf.pStart) delete[] (uint8_t*)tmpBuf.pStart; |
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tmpBuf.pStart = new uint8_t[neededsize]; |
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tmpBuf.Size = neededsize; |
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} |
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pSample2->SetPos(0); |
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unsigned long nRead = pSample2->ReadNoClear(pWave, pSample2->GetTotalFrameCount(), tmpBuf); |
| 341 |
if (nRead <= 0) |
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throw RIFF::Exception("Could not load sample data."); |
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} |
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|
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// Both libsndfile and libaudiofile uses int for 24 bit |
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// samples. libgig however returns 3 bytes per sample, so |
| 347 |
// we have to convert the wave data before writing. |
| 348 |
if (bitdepth == 24) { |
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int n = totalFrameCount * pSample->GetChannelCount(); |
| 350 |
for (int i = n - 1 ; i >= 0 ; i--) { |
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#if HAVE_SNDFILE |
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pIntWave[i] = pWave[i * 3] << 8 | pWave[i * 3 + 1] << 16 | pWave[i * 3 + 2] << 24; |
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#else |
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pIntWave[i] = pWave[i * 3] | pWave[i * 3 + 1] << 8 | pWave[i * 3 + 2] << 16; |
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#endif |
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} |
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} |
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|
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int res = writeWav(pSample, filename.c_str(), pWave, totalFrameCount, bitdepth); |
| 360 |
if (res < 0) cout << "Couldn't write sample data." << endl; |
| 361 |
else cout << "ok" << endl; |
| 362 |
|
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// make sure we don't extract this stereo sample pair a 2nd time |
| 364 |
if (pSample2) |
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selection[pSample->SampleLink] = false; |
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} |
| 367 |
if (pWave) delete[] pWave; |
| 368 |
if (tmpBuf.pStart) delete[] (uint8_t*)tmpBuf.pStart; |
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#if !HAVE_SNDFILE // use libaudiofile |
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closeAFlib(); |
| 371 |
#endif // !HAVE_SNDFILE |
| 372 |
} |
| 373 |
|
| 374 |
int writeWav(sf2::Sample* sample, const char* filename, void* samples, long totalFrameCount, int bitdepth) { |
| 375 |
#if HAVE_SNDFILE |
| 376 |
SNDFILE* hfile; |
| 377 |
SF_INFO sfinfo; |
| 378 |
SF_INSTRUMENT instr; |
| 379 |
int format = SF_FORMAT_WAV; |
| 380 |
switch (bitdepth) { |
| 381 |
case 8: |
| 382 |
format |= SF_FORMAT_PCM_S8; |
| 383 |
break; |
| 384 |
case 16: |
| 385 |
format |= SF_FORMAT_PCM_16; |
| 386 |
break; |
| 387 |
case 24: |
| 388 |
format |= SF_FORMAT_PCM_24; |
| 389 |
break; |
| 390 |
case 32: |
| 391 |
format |= SF_FORMAT_PCM_32; |
| 392 |
break; |
| 393 |
default: |
| 394 |
cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush; |
| 395 |
return -1; |
| 396 |
} |
| 397 |
memset(&sfinfo, 0, sizeof (sfinfo)); |
| 398 |
memset(&instr, 0, sizeof (instr)); |
| 399 |
sfinfo.samplerate = sample->SampleRate; |
| 400 |
sfinfo.frames = totalFrameCount; |
| 401 |
sfinfo.channels = sample->GetChannelCount(); |
| 402 |
sfinfo.format = format; |
| 403 |
if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) { |
| 404 |
cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush; |
| 405 |
return -1; |
| 406 |
} |
| 407 |
instr.basenote = sample->OriginalPitch; |
| 408 |
instr.detune = sample->PitchCorrection; |
| 409 |
if (sample->HasLoops()) { |
| 410 |
instr.loop_count = 1; |
| 411 |
instr.loops[0].mode = SF_LOOP_FORWARD; |
| 412 |
instr.loops[0].start = sample->StartLoop; |
| 413 |
instr.loops[0].end = sample->EndLoop; |
| 414 |
instr.loops[0].count = 1; |
| 415 |
} |
| 416 |
sf_command(hfile, SFC_SET_INSTRUMENT, &instr, sizeof(instr)); |
| 417 |
sf_count_t res = (bitdepth == 24) ? |
| 418 |
sf_write_int(hfile, static_cast<int*>(samples), sample->GetChannelCount() * totalFrameCount) : |
| 419 |
sf_write_short(hfile, static_cast<short*>(samples), sample->GetChannelCount() * totalFrameCount); |
| 420 |
if (res != sample->GetChannelCount() * totalFrameCount) { |
| 421 |
cerr << sf_strerror(hfile) << endl << flush; |
| 422 |
sf_close(hfile); |
| 423 |
return -1; |
| 424 |
} |
| 425 |
sf_close(hfile); |
| 426 |
#else // use libaudiofile |
| 427 |
AFfilesetup setup = _afNewFileSetup(); |
| 428 |
_afInitFileFormat(setup, AF_FILE_WAVE); |
| 429 |
_afInitChannels(setup, AF_DEFAULT_TRACK, sample->GetChannelCount()); |
| 430 |
_afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth); |
| 431 |
_afInitRate(setup, AF_DEFAULT_TRACK, sample->SampleRate); |
| 432 |
if (setup == AF_NULL_FILESETUP) return -1; |
| 433 |
AFfilehandle hFile = _afOpenFile(filename, "w", setup); |
| 434 |
if (hFile == AF_NULL_FILEHANDLE) return -1; |
| 435 |
if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, totalFrameCount) < 0) return -1; |
| 436 |
_afCloseFile(hFile); |
| 437 |
_afFreeFileSetup(setup); |
| 438 |
#endif // HAVE_SNDFILE |
| 439 |
|
| 440 |
return 0; // success |
| 441 |
} |
| 442 |
|
| 443 |
#if !HAVE_SNDFILE // use libaudiofile |
| 444 |
void openAFlib() { |
| 445 |
hAFlib = dlopen("libaudiofile.so", RTLD_NOW); |
| 446 |
if (!hAFlib) { |
| 447 |
cout << "Unable to load library libaudiofile.so: " << dlerror() << endl; |
| 448 |
return; |
| 449 |
} |
| 450 |
_afNewFileSetup = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup"); |
| 451 |
_afFreeFileSetup = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup"); |
| 452 |
_afInitChannels = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels"); |
| 453 |
_afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat"); |
| 454 |
_afInitFileFormat = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat"); |
| 455 |
_afInitRate = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate"); |
| 456 |
_afWriteFrames = (int(*)(AFfilehandle,int,const void*,int)) dlsym(hAFlib, "afWriteFrames"); |
| 457 |
_afOpenFile = (AFfilehandle(*)(const char*,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile"); |
| 458 |
_afCloseFile = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile"); |
| 459 |
if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl; |
| 460 |
} |
| 461 |
|
| 462 |
void closeAFlib() { |
| 463 |
if (hAFlib) dlclose(hAFlib); |
| 464 |
} |
| 465 |
#endif // !HAVE_SNDFILE |
| 466 |
|
| 467 |
|
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