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

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Revision 1953 - (show annotations) (download)
Thu Jul 30 08:16:02 2009 UTC (14 years, 8 months ago) by schoenebeck
File size: 16980 byte(s)
* preparations for release 3.3.0

1 /***************************************************************************
2 * *
3 * libgig - C++ cross-platform Gigasampler format file access library *
4 * *
5 * Copyright (C) 2003-2009 by Christian Schoenebeck *
6 * <cuse@users.sourceforge.net> *
7 * *
8 * This program is part of libgig. *
9 * *
10 * This program is free software; you can redistribute it and/or modify *
11 * it under the terms of the GNU General Public License as published by *
12 * the Free Software Foundation; either version 2 of the License, or *
13 * (at your option) any later version. *
14 * *
15 * This program is distributed in the hope that it will be useful, *
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
18 * GNU General Public License for more details. *
19 * *
20 * You should have received a copy of the GNU General Public License *
21 * along with this program; if not, write to the Free Software *
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
23 * MA 02111-1307 USA *
24 ***************************************************************************/
25
26 #ifdef HAVE_CONFIG_H
27 #include <config.h>
28 #endif
29
30 // just for testing the disk streaming capability of libgig;
31 // you will also need to set this to 1 at the moment if you want to
32 // extract compressed samples, as I haven't implemented the
33 // decompression algorithm in gig::Sample::LoadSampleData() yet
34 #define USE_DISK_STREAMING 1
35
36 // only when USE_DISK_STREAMING is set to 1:
37 // just for testing the disk stream capability; with this option set
38 // gigextract will read the samples in smaller pieces, just to stress
39 // gig::Sample::Read() method a bit
40 #define HASHED_READS_TEST 1
41
42 #include <iostream>
43 #include <cstdlib>
44 #include <string.h>
45 #include <string>
46 #include <stdlib.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49 #include <errno.h>
50
51 #include "gig.h"
52
53 #ifdef _MSC_VER
54 #define S_ISDIR(x) (S_IFDIR & (x))
55 #define S_IWUSR S_IWRITE
56 #define S_IXUSR S_IEXEC
57 #endif
58
59 #if POSIX
60 # include <dlfcn.h>
61 #endif
62
63 // only libsndfile is available for Windows, so we use that for writing the sound files
64 #ifdef WIN32
65 # define HAVE_SNDFILE 1
66 #endif // WIN32
67
68 // abort compilation here if neither libsndfile nor libaudiofile are available
69 #if !HAVE_SNDFILE && !HAVE_AUDIOFILE
70 # error "Neither libsndfile nor libaudiofile seem to be available!"
71 # error "(HAVE_SNDFILE and HAVE_AUDIOFILE are both false)"
72 #endif
73
74 // we prefer libsndfile before libaudiofile
75 #if HAVE_SNDFILE
76 # include <sndfile.h>
77 #else
78 # include <audiofile.h>
79 #endif // HAVE_SNDFILE
80
81 using namespace std;
82
83 typedef map<unsigned int, bool> OrderMap;
84 OrderMap* pOrderedSamples = NULL;
85
86 string Revision();
87 void PrintVersion();
88 void PrintUsage();
89 void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
90 int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
91 string ToString(int i);
92
93 #if !HAVE_SNDFILE // use libaudiofile
94 void* hAFlib; // handle to libaudiofile
95 void openAFlib(void);
96 void closeAFlib(void);
97 // pointers to libaudiofile functions
98 AFfilesetup(*_afNewFileSetup)(void);
99 void(*_afFreeFileSetup)(AFfilesetup);
100 void(*_afInitChannels)(AFfilesetup,int,int);
101 void(*_afInitSampleFormat)(AFfilesetup,int,int,int);
102 void(*_afInitFileFormat)(AFfilesetup,int);
103 void(*_afInitRate)(AFfilesetup,int,double);
104 int(*_afWriteFrames)(AFfilehandle,int,const void*,int);
105 AFfilehandle(*_afOpenFile)(const char*,const char*,AFfilesetup);
106 int(*_afCloseFile)(AFfilehandle file);
107 #endif // !HAVE_SNDFILE
108
109 int main(int argc, char *argv[]) {
110 if (argc >= 2) {
111 if (argv[1][0] == '-') {
112 switch (argv[1][1]) {
113 case 'v':
114 PrintVersion();
115 return EXIT_SUCCESS;
116 }
117 }
118 }
119 if (argc < 3) {
120 PrintUsage();
121 return EXIT_FAILURE;
122 }
123 if (argc > 3) { // extracting specific samples
124 pOrderedSamples = new OrderMap;
125 for (int i = 3; i < argc; i++) {
126 unsigned int index = atoi(argv[i]);
127 (*pOrderedSamples)[index] = true;
128 }
129 }
130 FILE* hFile = fopen(argv[1], "r");
131 if (!hFile) {
132 cout << "Invalid input file argument!" << endl;
133 return EXIT_FAILURE;
134 }
135 fclose(hFile);
136 struct stat buf;
137 if (stat(argv[2], &buf) == -1) {
138 cout << "Unable to open DESTDIR: ";
139 switch (errno) {
140 case EACCES: cout << "Permission denied." << endl;
141 break;
142 case ENOENT: cout << "Directory does not exist, or name is an empty string." << endl;
143 break;
144 case ENOMEM: cout << "Insufficient memory to complete the operation." << endl;
145 break;
146 case ENOTDIR: cout << "Is not a directory." << endl;
147 break;
148 default: cout << "Unknown error" << endl;
149 }
150 return EXIT_FAILURE;
151 } else if (!S_ISDIR(buf.st_mode)) {
152 cout << "Unable to open DESTDIR: Is not a directory." << endl;
153 return EXIT_FAILURE;
154 } else if (!(S_IWUSR & buf.st_mode) || !(S_IXUSR & buf.st_mode)) {
155 cout << "Unable to open DESTDIR: Permission denied." << endl;
156 return EXIT_FAILURE;
157 }
158 try {
159 RIFF::File* riff = new RIFF::File(argv[1]);
160 gig::File* gig = new gig::File(riff);
161 cout << "Extracting samples from \"" << argv[1] << "\" to directory \"" << argv[2] << "\"." << endl << flush;
162 ExtractSamples(gig, argv[2], pOrderedSamples);
163 cout << "Extraction finished." << endl << flush;
164 delete gig;
165 delete riff;
166 if (pOrderedSamples) delete pOrderedSamples;
167 }
168 catch (RIFF::Exception e) {
169 e.PrintMessage();
170 return EXIT_FAILURE;
171 }
172 catch (...) {
173 cout << "Unknown exception while trying to parse file." << endl;
174 return EXIT_FAILURE;
175 }
176
177 return EXIT_SUCCESS;
178 }
179
180 void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
181 #if !HAVE_SNDFILE // use libaudiofile
182 hAFlib = NULL;
183 openAFlib();
184 #endif // !HAVE_SNDFILE
185 uint8_t* pWave = NULL;
186 int* pIntWave = NULL;
187 long BufferSize = 0;
188 int samples = 0;
189 gig::buffer_t decompressionBuffer;
190 decompressionBuffer.Size = 0;
191 cout << "Seeking for available samples..." << flush;
192 gig::Sample* pSample = gig->GetFirstSample();
193 cout << "OK" << endl << flush;
194 while (pSample) {
195 samples++;
196 if (ordered) {
197 if ((*ordered)[samples] == false) {
198 pSample = gig->GetNextSample();
199 continue;
200 }
201 }
202 string name = pSample->pInfo->Name;
203 string filename = destdir;
204 if (filename[filename.size() - 1] != '/') filename += "/";
205 filename += ToString(samples);
206 filename += "_";
207 if (name == "") {
208 name = "(NO NAME)";
209 filename += "NONAME";
210 }
211 else {
212 filename += name;
213 name.insert(0, "\"");
214 name += "\"";
215 }
216 filename += ".wav";
217 if (pSample->Compressed) cout << "Decompressing ";
218 else cout << "Extracting ";
219 cout << "Sample " << samples << ") " << name << " (" << pSample->BitDepth <<"Bits, " << pSample->SamplesPerSecond << "Hz, " << pSample->Channels << " Channels, " << pSample->SamplesTotal << " Samples)..." << flush;
220
221
222 #if USE_DISK_STREAMING
223 long neededsize = pSample->BitDepth == 24 ?
224 pSample->SamplesTotal * pSample->Channels * sizeof(int) :
225 pSample->SamplesTotal * pSample->FrameSize;
226 if (BufferSize < neededsize) {
227 if (pWave) delete[] pWave;
228 pWave = new uint8_t[neededsize];
229 BufferSize = neededsize;
230 }
231 pIntWave = (int*)pWave;
232 # if HASHED_READS_TEST
233 unsigned long readinthisrun = 0,
234 samplepiecesize = 2000;
235 uint8_t* pSamplePiece = pWave;
236 do { // we read the sample in small pieces and increment the size with each run just to test streaming capability
237 readinthisrun = pSample->Read(pSamplePiece, ++samplepiecesize);
238 pSamplePiece += readinthisrun * pSample->FrameSize;
239 } while (readinthisrun == samplepiecesize);
240
241 # else // read in one piece
242 if (pSample->Compressed) {
243 if (decompressionBufferSize < pSample->SamplesTotal) {
244 gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
245 decompressionBuffer = gig::Sample::CreateDecompressionBuffer(pSample->SamplesTotal);
246 decompressionBufferSize = pSample->SamplesTotal;
247 }
248 pSample->Read(pWave, pSample->SamplesTotal, &decompressionBuffer);
249 } else {
250 pSample->Read(pWave, pSample->SamplesTotal);
251 }
252 # endif // HASHED_READS_TEST
253 #else // no disk streaming
254 if (pSample->Compressed) {
255 cout << "Sorry, sample is compressed and Sample::LoadSampleData() only decompresses the beginning of the sample - Solution: set USE_DISK_STREAMING in gigextract.cpp (line 32) to 1 and recompile!" << endl;
256 } else {
257 gig::buffer_t buffer = pSample->LoadSampleData(); // load wave into RAM
258 pWave = static_cast<uint8_t*>(buffer.pStart);
259 if (pSample->BitDepth == 24) {
260 long neededsize = pSample->SamplesTotal * pSample->Channels;
261 if (BufferSize < neededsize) {
262 if (pIntWave) delete[] pIntWave;
263 pIntWave = new int[neededsize];
264 BufferSize = neededsize;
265 }
266 }
267 }
268 #endif // USE_DISK_STREAMING
269 if (pWave) {
270
271 // Both libsndfile and libaudiofile uses int for 24 bit
272 // samples. libgig however returns 3 bytes per sample, so
273 // we have to convert the wave data before writing.
274 if (pSample->BitDepth == 24) {
275 int n = pSample->SamplesTotal * pSample->Channels;
276 for (int i = n - 1 ; i >= 0 ; i--) {
277 #if HAVE_SNDFILE
278 pIntWave[i] = pWave[i * 3] << 8 | pWave[i * 3 + 1] << 16 | pWave[i * 3 + 2] << 24;
279 #else
280 pIntWave[i] = pWave[i * 3] | pWave[i * 3 + 1] << 8 | pWave[i * 3 + 2] << 16;
281 #endif
282 }
283 }
284
285 int res = writeWav(filename.c_str(),
286 pSample->BitDepth == 24 ? static_cast<void*>(pIntWave) : pWave,
287 pSample->SamplesTotal,
288 pSample->Channels,
289 pSample->BitDepth,
290 pSample->SamplesPerSecond);
291 if (res < 0) cout << "Couldn't write sample data." << endl;
292 else cout << "ok" << endl;
293 pSample->ReleaseSampleData(); // free wave from RAM
294 }
295 else cout << "Failed to load sample data." << endl;
296
297 pSample = gig->GetNextSample();
298 }
299 gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
300 #if USE_DISK_STREAMING
301 if (pWave) delete[] pWave;
302 #else
303 if (pIntWave) delete[] pIntWave;
304 #endif
305 #if !HAVE_SNDFILE // use libaudiofile
306 closeAFlib();
307 #endif // !HAVE_SNDFILE
308 }
309
310 int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
311 #if HAVE_SNDFILE
312 SNDFILE* hfile;
313 SF_INFO sfinfo;
314 int format = SF_FORMAT_WAV;
315 switch (bitdepth) {
316 case 8:
317 format |= SF_FORMAT_PCM_S8;
318 break;
319 case 16:
320 format |= SF_FORMAT_PCM_16;
321 break;
322 case 24:
323 format |= SF_FORMAT_PCM_24;
324 break;
325 case 32:
326 format |= SF_FORMAT_PCM_32;
327 break;
328 default:
329 cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
330 return -1;
331 }
332 memset(&sfinfo, 0, sizeof (sfinfo));
333 sfinfo.samplerate = rate;
334 sfinfo.frames = samplecount;
335 sfinfo.channels = channels;
336 sfinfo.format = format;
337 if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
338 cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
339 return -1;
340 }
341 sf_count_t res = bitdepth == 24 ?
342 sf_write_int(hfile, static_cast<int*>(samples), channels * samplecount) :
343 sf_write_short(hfile, static_cast<short*>(samples), channels * samplecount);
344 if (res != channels * samplecount) {
345 cerr << sf_strerror(hfile) << endl << flush;
346 sf_close(hfile);
347 return -1;
348 }
349 sf_close(hfile);
350 #else // use libaudiofile
351 AFfilesetup setup = _afNewFileSetup();
352 _afInitFileFormat(setup, AF_FILE_WAVE);
353 _afInitChannels(setup, AF_DEFAULT_TRACK, channels);
354 _afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth);
355 _afInitRate(setup, AF_DEFAULT_TRACK, rate);
356 if (setup == AF_NULL_FILESETUP) return -1;
357 AFfilehandle hFile = _afOpenFile(filename, "w", setup);
358 if (hFile == AF_NULL_FILEHANDLE) return -1;
359 if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
360 _afCloseFile(hFile);
361 _afFreeFileSetup(setup);
362 #endif // HAVE_SNDFILE
363
364 return 0; // success
365 }
366
367 #if !HAVE_SNDFILE // use libaudiofile
368 void openAFlib() {
369 hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
370 if (!hAFlib) {
371 cout << "Unable to load library libaudiofile.so: " << dlerror() << endl;
372 return;
373 }
374 _afNewFileSetup = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup");
375 _afFreeFileSetup = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup");
376 _afInitChannels = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels");
377 _afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat");
378 _afInitFileFormat = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat");
379 _afInitRate = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate");
380 _afWriteFrames = (int(*)(AFfilehandle,int,const void*,int)) dlsym(hAFlib, "afWriteFrames");
381 _afOpenFile = (AFfilehandle(*)(const char*,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile");
382 _afCloseFile = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile");
383 if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl;
384 }
385
386 void closeAFlib() {
387 if (hAFlib) dlclose(hAFlib);
388 }
389 #endif // !HAVE_SNDFILE
390
391 string Revision() {
392 string s = "$Revision: 1.12 $";
393 return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
394 }
395
396 void PrintVersion() {
397 cout << "gigextract revision " << Revision() << endl;
398 cout << "using " << gig::libraryName() << " " << gig::libraryVersion();
399 #if HAVE_SNDFILE
400 char versionBuffer[128];
401 sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128);
402 cout << ", " << versionBuffer;
403 #else // use libaudiofile
404 cout << "\nbuilt against libaudiofile "
405 << LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION;
406 # ifdef LIBAUDIOFILE_MICRO_VERSION
407 cout << "." << LIBAUDIOFILE_MICRO_VERSION;
408 # endif // LIBAUDIOFILE_MICRO_VERSION
409 #endif // HAVE_SNDFILE
410 cout << endl;
411 }
412
413 void PrintUsage() {
414 cout << "gigextract - extracts samples from a Gigasampler file." << endl;
415 cout << endl;
416 cout << "Usage: gigextract [-v] GIGFILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl;
417 cout << endl;
418 cout << " GIGFILE Input Gigasampler (.gig) file." << endl;
419 cout << endl;
420 cout << " DESTDIR Destination directory where all .wav files will be written to." << endl;
421 cout << endl;
422 cout << " SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl;
423 cout << " If no sample indices are given, all samples will be extracted" << endl;
424 cout << " (use gigdump to look for available samples)." << endl;
425 cout << endl;
426 cout << " -v Print version and exit." << endl;
427 cout << endl;
428 }
429
430 string ToString(int i) {
431 static char strbuf[1024];
432 sprintf(strbuf,"%d",i);
433 string s = strbuf;
434 return s;
435 }

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