/[svn]/libgig/trunk/src/gigextract.cpp
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Diff of /libgig/trunk/src/gigextract.cpp

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revision 55 by schoenebeck, Tue Apr 27 09:06:07 2004 UTC revision 220 by schoenebeck, Wed Aug 18 12:11:26 2004 UTC
# Line 39  Line 39 
39    
40  #include <iostream>  #include <iostream>
41  #include <cstdlib>  #include <cstdlib>
42    #include <string.h>
43  #include <stdlib.h>  #include <stdlib.h>
44  #include <sys/types.h>  #include <sys/types.h>
45  #include <sys/stat.h>  #include <sys/stat.h>
46  #include <dirent.h>  #include <dirent.h>
47  #include <errno.h>  #include <errno.h>
48  #include <dlfcn.h>  #include <dlfcn.h>
49  #include <audiofile.h>  
50    // only libsndfile is available for Windows, so we use that for writing the sound files
51    #ifdef WIN32
52    # define HAVE_SNDFILE 1
53    #endif // WIN32
54    
55    // we prefer libsndfile before libaudiofile
56    #if HAVE_SNDFILE
57    # include <sndfile.h>
58    #else
59    # include <audiofile.h>
60    #endif // HAVE_SNDFILE
61    
62  #include "gig.h"  #include "gig.h"
63    
64  using namespace std;  using namespace std;
# Line 56  OrderMap* pOrderedSamples = NULL; Line 69  OrderMap* pOrderedSamples = NULL;
69  void PrintUsage();  void PrintUsage();
70  void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);  void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
71  int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);  int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
72    string ToString(int i);
73    
74    #ifndef HAVE_SNDFILE
75  void* hAFlib; // handle to libaudiofile  void* hAFlib; // handle to libaudiofile
76  void openAFlib(void);  void openAFlib(void);
77  void closeAFlib(void);  void closeAFlib(void);
# Line 69  void(*_afInitRate)(AFfilesetup,int,doubl Line 85  void(*_afInitRate)(AFfilesetup,int,doubl
85  int(*_afWriteFrames)(AFfilehandle,int,const void*,int);  int(*_afWriteFrames)(AFfilehandle,int,const void*,int);
86  AFfilehandle(*_afOpenFile)(const char*,const char*,AFfilesetup);  AFfilehandle(*_afOpenFile)(const char*,const char*,AFfilesetup);
87  int(*_afCloseFile)(AFfilehandle file);  int(*_afCloseFile)(AFfilehandle file);
88  string ToString(int i);  #endif // !HAVE_SNDFILE
89    
90  int main(int argc, char *argv[]) {  int main(int argc, char *argv[]) {
91      if (argc < 3) {      if (argc < 3) {
# Line 133  int main(int argc, char *argv[]) { Line 149  int main(int argc, char *argv[]) {
149  }  }
150    
151  void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {  void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
152    #ifndef HAVE_SNDFILE
153      hAFlib = NULL;      hAFlib = NULL;
154      openAFlib();      openAFlib();
155    #endif // !HAVE_SNDFILE
156      uint8_t* pWave  = NULL;      uint8_t* pWave  = NULL;
157      long BufferSize = 0;      long BufferSize = 0;
158      int samples     = 0;      int samples     = 0;
# Line 226  void ExtractSamples(gig::File* gig, char Line 244  void ExtractSamples(gig::File* gig, char
244          pSample = gig->GetNextSample();          pSample = gig->GetNextSample();
245      }      }
246      if (pWave) delete[] (uint8_t*) pWave;      if (pWave) delete[] (uint8_t*) pWave;
247    #ifndef HAVE_SNDFILE
248      closeAFlib();      closeAFlib();
249    #endif // !HAVE_SNDFILE
250  }  }
251    
252  int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {  int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
253    #if HAVE_SNDFILE
254        SNDFILE* hfile;
255        SF_INFO  sfinfo;
256        int format = SF_FORMAT_WAV;
257        switch (bitdepth) {
258            case 8:
259                format |= SF_FORMAT_PCM_S8;
260                cout << "8 bit" << endl << flush;
261                break;
262            case 16:
263                format |= SF_FORMAT_PCM_16;
264                cout << "16 bit" << endl << flush;
265                break;
266            case 24:
267                format |= SF_FORMAT_PCM_24;
268                cout << "24 bit" << endl << flush;
269                break;
270            case 32:
271                format |= SF_FORMAT_PCM_32;
272                cout << "32 bit" << endl << flush;
273                break;
274            default:
275                cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
276                return -1;
277        }
278        memset(&sfinfo, 0, sizeof (sfinfo));
279        sfinfo.samplerate = rate;
280        sfinfo.frames     = samplecount;
281        sfinfo.channels   = channels;
282        sfinfo.format     = format;
283        if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
284            cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
285            return -1;
286        }
287        if (sf_write_short(hfile, (short*)samples, channels * samplecount) != channels * samplecount) {
288            cerr << sf_strerror(hfile) << endl << flush;
289            sf_close(hfile);
290            return -1;
291        }
292        sf_close(hfile);
293    #else
294      AFfilesetup setup = _afNewFileSetup();      AFfilesetup setup = _afNewFileSetup();
295      _afInitFileFormat(setup, AF_FILE_WAVE);      _afInitFileFormat(setup, AF_FILE_WAVE);
296      _afInitChannels(setup, AF_DEFAULT_TRACK, channels);      _afInitChannels(setup, AF_DEFAULT_TRACK, channels);
# Line 241  int writeWav(const char* filename, void* Line 302  int writeWav(const char* filename, void*
302      if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;      if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
303      _afCloseFile(hFile);      _afCloseFile(hFile);
304      _afFreeFileSetup(setup);      _afFreeFileSetup(setup);
305    #endif // HAVE_SNDFILE
306    
307      return 0;      return 0; // success
308  }  }
309    
310    #ifndef HAVE_SNDFILE
311  void openAFlib() {  void openAFlib() {
312      hAFlib = dlopen("libaudiofile.so", RTLD_NOW);      hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
313      if (!hAFlib) {      if (!hAFlib) {
# Line 266  void openAFlib() { Line 329  void openAFlib() {
329  void closeAFlib() {  void closeAFlib() {
330      if (hAFlib) dlclose(hAFlib);      if (hAFlib) dlclose(hAFlib);
331  }  }
332    #endif // !HAVE_SNDFILE
333    
334  void PrintUsage() {  void PrintUsage() {
335      cout << "gigextract - extracts samples from a Gigasampler file." << endl;      cout << "gigextract - extracts samples from a Gigasampler file." << endl;
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