trunk/src/gigextract.cpp

/***************************************************************************
 *                                                                         *
 *   libgig - C++ cross-platform Gigasampler format file access library    *
 *                                                                         *
 *   Copyright (C) 2003-2006 by Christian Schoenebeck                      *
 *                              <cuse@users.sourceforge.net>               *
 *                                                                         *
 *   This program is part of libgig.                                       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the Free Software           *
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston,                 *
 *   MA  02111-1307  USA                                                   *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

// just for testing the disk streaming capability of libgig;
// you will also need to set this to 1 at the moment if you want to
// extract compressed samples, as I haven't implemented the
// decompression algorithm in gig::Sample::LoadSampleData() yet
#define USE_DISK_STREAMING      1

// only when USE_DISK_STREAMING is set to 1:
// just for testing the disk stream capability; with this option set
// gigextract will read the samples in smaller pieces, just to stress
// gig::Sample::Read() method a bit
#define HASHED_READS_TEST       1

#include <iostream>
#include <cstdlib>
#include <string.h>
#include <string>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#include <errno.h>
#include <dlfcn.h>

// only libsndfile is available for Windows, so we use that for writing the sound files
#ifdef WIN32
# define HAVE_SNDFILE 1
#endif // WIN32

// abort compilation here if neither libsndfile nor libaudiofile are available
#if !HAVE_SNDFILE && !HAVE_AUDIOFILE
# error "Neither libsndfile nor libaudiofile seem to be available!"
# error "(HAVE_SNDFILE and HAVE_AUDIOFILE are both false)"
#endif

// we prefer libsndfile before libaudiofile
#if HAVE_SNDFILE
# include <sndfile.h>
#else
# include <audiofile.h>
#endif // HAVE_SNDFILE

#include "gig.h"

using namespace std;

typedef map<unsigned int, bool> OrderMap;
OrderMap* pOrderedSamples = NULL;

string Revision();
void PrintVersion();
void PrintUsage();
void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
string ToString(int i);

#if !HAVE_SNDFILE // use libaudiofile
void* hAFlib; // handle to libaudiofile
void openAFlib(void);
void closeAFlib(void);
// pointers to libaudiofile functions
AFfilesetup(*_afNewFileSetup)(void);
void(*_afFreeFileSetup)(AFfilesetup);
void(*_afInitChannels)(AFfilesetup,int,int);
void(*_afInitSampleFormat)(AFfilesetup,int,int,int);
void(*_afInitFileFormat)(AFfilesetup,int);
void(*_afInitRate)(AFfilesetup,int,double);
int(*_afWriteFrames)(AFfilehandle,int,const void*,int);
AFfilehandle(*_afOpenFile)(const char*,const char*,AFfilesetup);
int(*_afCloseFile)(AFfilehandle file);
#endif // !HAVE_SNDFILE

int main(int argc, char *argv[]) {
     if (argc >= 2) {
        if (argv[1][0] == '-') {
            switch (argv[1][1]) {
                case 'v':
                    PrintVersion();
                    return EXIT_SUCCESS;
            }
        }
    }
    if (argc < 3) {
        PrintUsage();
        return EXIT_FAILURE;
    }
    if (argc > 3) { // extracting specific samples
        pOrderedSamples = new OrderMap;
        for (int i = 3; i < argc; i++) {
            unsigned int index = atoi(argv[i]);
            (*pOrderedSamples)[index] = true;
        }
    }
    FILE* hFile = fopen(argv[1], "r");
    if (!hFile) {
        cout << "Invalid input file argument!" << endl;
        return EXIT_FAILURE;
    }
    fclose(hFile);
    DIR* dir = opendir(argv[2]);
    if (!dir) {
        cout << "Unable to open DESTDIR: ";
        switch (errno) {
            case EACCES:  cout << "Permission denied." << endl;
                          break;
            case EMFILE:  cout << "Too many file descriptors in use by process." << endl;
                          break;
            case ENFILE:  cout << "Too many files are currently open in the system." << endl;
                          break;
            case ENOENT:  cout << "Directory does not exist, or name is an empty string." << endl;
                          break;
            case ENOMEM:  cout << "Insufficient memory to complete the operation." << endl;
                          break;
            case ENOTDIR: cout << "Is not a directory." << endl;
                          break;
            default:      cout << "Unknown error" << endl;
        }
        return EXIT_FAILURE;
    }
    if (dir) closedir(dir);
    try {
        RIFF::File* riff = new RIFF::File(argv[1]);
        gig::File*  gig  = new gig::File(riff);
        cout << "Extracting samples from \"" << argv[1] << "\" to directory \"" << argv[2] << "\"." << endl << flush;
        ExtractSamples(gig, argv[2], pOrderedSamples);
        cout << "Extraction finished." << endl << flush;
        delete gig;
        delete riff;
        if (pOrderedSamples) delete pOrderedSamples;
    }
    catch (RIFF::Exception e) {
        e.PrintMessage();
        return EXIT_FAILURE;
    }
    catch (...) {
        cout << "Unknown exception while trying to parse file." << endl;
        return EXIT_FAILURE;
    }

    return EXIT_SUCCESS;
}

void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
#if !HAVE_SNDFILE // use libaudiofile
    hAFlib = NULL;
    openAFlib();
#endif // !HAVE_SNDFILE
    uint8_t* pWave  = NULL;
    int* pIntWave = NULL;
    long BufferSize = 0;
    int samples     = 0;
    gig::buffer_t decompressionBuffer;
    decompressionBuffer.Size = 0;
    unsigned long decompressionBufferSize = 0;
    cout << "Seeking for available samples..." << flush;
    gig::Sample* pSample = gig->GetFirstSample();
    cout << "OK" << endl << flush;
    while (pSample) {
        samples++;
        if (ordered) {
            if ((*ordered)[samples] == false) {
                pSample = gig->GetNextSample();
                continue;
            }
        }
        string name = pSample->pInfo->Name;
        string filename = destdir;
        if (filename[filename.size() - 1] != '/') filename += "/";
        filename += ToString(samples);
        filename += "_";
        if (name == "") {
            name = "(NO NAME)";
            filename += "NONAME";
        }
        else {
            filename += name;
            name.insert(0, "\"");
            name += "\"";
        }
        filename += ".wav";
        if (pSample->Compressed) cout << "Decompressing ";
        else                     cout << "Extracting ";
        cout << "Sample " << samples << ") " << name << " (" << pSample->BitDepth <<"Bits, " << pSample->SamplesPerSecond << "Hz, " << pSample->Channels << " Channels, " << pSample->SamplesTotal << " Samples)..." << flush;


#if USE_DISK_STREAMING
        long neededsize = pSample->BitDepth == 24 ?
            pSample->SamplesTotal * pSample->Channels * sizeof(int) :
            pSample->SamplesTotal * pSample->FrameSize;
        if (BufferSize < neededsize) {
            if (pWave) delete[] pWave;
            pWave = new uint8_t[neededsize];
            BufferSize = neededsize;
        }
        pIntWave = (int*)pWave;
#  if HASHED_READS_TEST
        unsigned long readinthisrun   = 0,
                      samplepiecesize = 2000;
        uint8_t* pSamplePiece = pWave;
        do { // we read the sample in small pieces and increment the size with each run just to test streaming capability
            readinthisrun = pSample->Read(pSamplePiece, ++samplepiecesize);
            pSamplePiece += readinthisrun * pSample->FrameSize;
        } while (readinthisrun == samplepiecesize);

#  else // read in one piece
        if (pSample->Compressed) {
            if (decompressionBufferSize < pSample->SamplesTotal) {
                gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
                decompressionBuffer = gig::Sample::CreateDecompressionBuffer(pSample->SamplesTotal);
                decompressionBufferSize = pSample->SamplesTotal;
            }
            pSample->Read(pWave, pSample->SamplesTotal, &decompressionBuffer);
        } else {
            pSample->Read(pWave, pSample->SamplesTotal);
        }
#  endif // HASHED_READS_TEST
#else // no disk streaming
        if (pSample->Compressed) {
            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;
        } else {
            gig::buffer_t buffer = pSample->LoadSampleData(); // load wave into RAM
            pWave = static_cast<uint8_t*>(buffer.pStart);
            if (pSample->BitDepth == 24) {
                long neededsize = pSample->SamplesTotal * pSample->Channels;
                if (BufferSize < neededsize) {
                    if (pIntWave) delete[] pIntWave;
                    pIntWave = new int[neededsize];
                    BufferSize = neededsize;
                }
            }
        }
#endif // USE_DISK_STREAMING
        if (pWave) {

            // Both libsndfile and libaudiofile uses int for 24 bit
            // samples. libgig however returns 3 bytes per sample, so
            // we have to convert the wave data before writing.
            if (pSample->BitDepth == 24) {
                int n = pSample->SamplesTotal * pSample->Channels;
                for (int i = n - 1 ; i >= 0 ; i--) {
#if HAVE_SNDFILE
                    pIntWave[i] = pWave[i * 3] << 8 | pWave[i * 3 + 1] << 16 | pWave[i * 3 + 2] << 24;
#else
                    pIntWave[i] = pWave[i * 3] | pWave[i * 3 + 1] << 8 | pWave[i * 3 + 2] << 16;
#endif
                }
            }

            int res = writeWav(filename.c_str(),
                               pSample->BitDepth == 24 ? static_cast<void*>(pIntWave) : pWave,
                               pSample->SamplesTotal,
                               pSample->Channels,
                               pSample->BitDepth,
                               pSample->SamplesPerSecond);
            if (res < 0) cout << "Couldn't write sample data." << endl;
            else cout << "ok" << endl;
            pSample->ReleaseSampleData(); // free wave from RAM
        }
        else cout << "Failed to load sample data." << endl;

        pSample = gig->GetNextSample();
    }
    gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
#if USE_DISK_STREAMING
    if (pWave) delete[] pWave;
#else
    if (pIntWave) delete[] pIntWave;
#endif
#if !HAVE_SNDFILE // use libaudiofile
    closeAFlib();
#endif // !HAVE_SNDFILE
}

int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
#if HAVE_SNDFILE
    SNDFILE* hfile;
    SF_INFO  sfinfo;
    int format = SF_FORMAT_WAV;
    switch (bitdepth) {
        case 8:
            format |= SF_FORMAT_PCM_S8;
            break;
        case 16:
            format |= SF_FORMAT_PCM_16;
            break;
        case 24:
            format |= SF_FORMAT_PCM_24;
            break;
        case 32:
            format |= SF_FORMAT_PCM_32;
            break;
        default:
            cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
            return -1;
    }
    memset(&sfinfo, 0, sizeof (sfinfo));
    sfinfo.samplerate = rate;
    sfinfo.frames     = samplecount;
    sfinfo.channels   = channels;
    sfinfo.format     = format;
    if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
        cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
        return -1;
    }
    sf_count_t res = bitdepth == 24 ?
        sf_write_int(hfile, static_cast<int*>(samples), channels * samplecount) :
        sf_write_short(hfile, static_cast<short*>(samples), channels * samplecount);
    if (res != channels * samplecount) {
        cerr << sf_strerror(hfile) << endl << flush;
        sf_close(hfile);
        return -1;
    }
    sf_close(hfile);
#else // use libaudiofile
    AFfilesetup setup = _afNewFileSetup();
    _afInitFileFormat(setup, AF_FILE_WAVE);
    _afInitChannels(setup, AF_DEFAULT_TRACK, channels);
    _afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth);
    _afInitRate(setup, AF_DEFAULT_TRACK, rate);
    if (setup == AF_NULL_FILESETUP) return -1;
    AFfilehandle hFile = _afOpenFile(filename, "w", setup);
    if (hFile == AF_NULL_FILEHANDLE) return -1;
    if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
    _afCloseFile(hFile);
    _afFreeFileSetup(setup);
#endif // HAVE_SNDFILE

    return 0; // success
}

#if !HAVE_SNDFILE // use libaudiofile
void openAFlib() {
    hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
    if (!hAFlib) {
        cout << "Unable to load library libaudiofile.so: " << dlerror() << endl;
        return;
    }
    _afNewFileSetup     = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup");
    _afFreeFileSetup    = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup");
    _afInitChannels     = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels");
    _afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat");
    _afInitFileFormat   = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat");
    _afInitRate         = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate");
    _afWriteFrames      = (int(*)(AFfilehandle,int,const void*,int)) dlsym(hAFlib, "afWriteFrames");
    _afOpenFile         = (AFfilehandle(*)(const char*,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile");
    _afCloseFile        = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile");
    if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl;
}

void closeAFlib() {
    if (hAFlib) dlclose(hAFlib);
}
#endif // !HAVE_SNDFILE

string Revision() {
    string s = "$Revision: 1.9 $";
    return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
}

void PrintVersion() {
    cout << "gigextract revision " << Revision() << endl;
    cout << "using " << gig::libraryName() << " " << gig::libraryVersion();
    #if HAVE_SNDFILE
    char versionBuffer[128];
    sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128);
    cout << ", " << versionBuffer;
    #else // use libaudiofile
    cout << "\nbuilt against libaudiofile "
         << LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION;
    # ifdef LIBAUDIOFILE_MICRO_VERSION
    cout << "." << LIBAUDIOFILE_MICRO_VERSION;
    # endif // LIBAUDIOFILE_MICRO_VERSION
    #endif // HAVE_SNDFILE
    cout << endl;
}

void PrintUsage() {
    cout << "gigextract - extracts samples from a Gigasampler file." << endl;
    cout << endl;
    cout << "Usage: gigextract [-v] GIGFILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl;
    cout << endl;
    cout << "   GIGFILE  Input Gigasampler (.gig) file." << endl;
    cout << endl;
    cout << "   DESTDIR  Destination directory where all .wav files will be written to." << endl;
    cout << endl;
    cout << "   SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl;
    cout << "            If no sample indices are given, all samples will be extracted" << endl;
    cout << "            (use gigdump to look for available samples)." << endl;
    cout << endl;
    cout << "   -v       Print version and exit." << endl;
    cout << endl;
}

string ToString(int i) {
    static char strbuf[1024];
    sprintf(strbuf,"%d",i);
    string s = strbuf;
    return s;
}
1	schoenebeck	2	/***************************************************************************
2			* *
3	schoenebeck	933	* libgig - C++ cross-platform Gigasampler format file access library *
4	schoenebeck	2	* *
5	schoenebeck	933	* Copyright (C) 2003-2006 by Christian Schoenebeck *
6	schoenebeck	518	* <cuse@users.sourceforge.net> *
7	schoenebeck	2	* *
8	schoenebeck	933	* This program is part of libgig. *
9			* *
10	schoenebeck	2	* 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	schoenebeck	220	#include <string.h>
45	schoenebeck	518	#include <string>
46	schoenebeck	2	#include <stdlib.h>
47			#include <sys/types.h>
48			#include <sys/stat.h>
49			#include <dirent.h>
50			#include <errno.h>
51			#include <dlfcn.h>
52	schoenebeck	220
53			// only libsndfile is available for Windows, so we use that for writing the sound files
54			#ifdef WIN32
55			# define HAVE_SNDFILE 1
56			#endif // WIN32
57
58	schoenebeck	608	// abort compilation here if neither libsndfile nor libaudiofile are available
59			#if !HAVE_SNDFILE && !HAVE_AUDIOFILE
60			# error "Neither libsndfile nor libaudiofile seem to be available!"
61			# error "(HAVE_SNDFILE and HAVE_AUDIOFILE are both false)"
62			#endif
63
64	schoenebeck	220	// we prefer libsndfile before libaudiofile
65			#if HAVE_SNDFILE
66			# include <sndfile.h>
67			#else
68			# include <audiofile.h>
69			#endif // HAVE_SNDFILE
70
71	schoenebeck	2	#include "gig.h"
72
73			using namespace std;
74
75			typedef map<unsigned int, bool> OrderMap;
76			OrderMap* pOrderedSamples = NULL;
77
78	schoenebeck	518	string Revision();
79			void PrintVersion();
80	schoenebeck	2	void PrintUsage();
81			void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
82			int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
83	schoenebeck	220	string ToString(int i);
84
85	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
86	schoenebeck	2	void* hAFlib; // handle to libaudiofile
87			void openAFlib(void);
88			void closeAFlib(void);
89			// pointers to libaudiofile functions
90			AFfilesetup(*_afNewFileSetup)(void);
91			void(*_afFreeFileSetup)(AFfilesetup);
92			void(*_afInitChannels)(AFfilesetup,int,int);
93			void(*_afInitSampleFormat)(AFfilesetup,int,int,int);
94			void(*_afInitFileFormat)(AFfilesetup,int);
95			void(*_afInitRate)(AFfilesetup,int,double);
96			int(_afWriteFrames)(AFfilehandle,int,const void,int);
97			AFfilehandle(_afOpenFile)(const char,const char*,AFfilesetup);
98			int(*_afCloseFile)(AFfilehandle file);
99	schoenebeck	220	#endif // !HAVE_SNDFILE
100	schoenebeck	2
101			int main(int argc, char *argv[]) {
102	schoenebeck	518	if (argc >= 2) {
103			if (argv[1][0] == '-') {
104			switch (argv[1][1]) {
105			case 'v':
106			PrintVersion();
107			return EXIT_SUCCESS;
108			}
109			}
110			}
111	schoenebeck	2	if (argc < 3) {
112			PrintUsage();
113			return EXIT_FAILURE;
114			}
115			if (argc > 3) { // extracting specific samples
116			pOrderedSamples = new OrderMap;
117			for (int i = 3; i < argc; i++) {
118			unsigned int index = atoi(argv[i]);
119			(*pOrderedSamples)[index] = true;
120			}
121			}
122			FILE* hFile = fopen(argv[1], "r");
123			if (!hFile) {
124			cout << "Invalid input file argument!" << endl;
125			return EXIT_FAILURE;
126			}
127			fclose(hFile);
128			DIR* dir = opendir(argv[2]);
129			if (!dir) {
130			cout << "Unable to open DESTDIR: ";
131			switch (errno) {
132			case EACCES: cout << "Permission denied." << endl;
133			break;
134			case EMFILE: cout << "Too many file descriptors in use by process." << endl;
135			break;
136			case ENFILE: cout << "Too many files are currently open in the system." << endl;
137			break;
138			case ENOENT: cout << "Directory does not exist, or name is an empty string." << endl;
139			break;
140			case ENOMEM: cout << "Insufficient memory to complete the operation." << endl;
141			break;
142			case ENOTDIR: cout << "Is not a directory." << endl;
143			break;
144			default: cout << "Unknown error" << endl;
145			}
146			return EXIT_FAILURE;
147			}
148			if (dir) closedir(dir);
149			try {
150			RIFF::File* riff = new RIFF::File(argv[1]);
151			gig::File* gig = new gig::File(riff);
152			cout << "Extracting samples from \"" << argv[1] << "\" to directory \"" << argv[2] << "\"." << endl << flush;
153			ExtractSamples(gig, argv[2], pOrderedSamples);
154			cout << "Extraction finished." << endl << flush;
155			delete gig;
156			delete riff;
157			if (pOrderedSamples) delete pOrderedSamples;
158			}
159			catch (RIFF::Exception e) {
160			e.PrintMessage();
161			return EXIT_FAILURE;
162			}
163			catch (...) {
164			cout << "Unknown exception while trying to parse file." << endl;
165			return EXIT_FAILURE;
166			}
167
168			return EXIT_SUCCESS;
169			}
170
171			void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
172	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
173	schoenebeck	2	hAFlib = NULL;
174			openAFlib();
175	schoenebeck	220	#endif // !HAVE_SNDFILE
176	schoenebeck	2	uint8_t* pWave = NULL;
177	persson	902	int* pIntWave = NULL;
178	schoenebeck	2	long BufferSize = 0;
179			int samples = 0;
180	persson	902	gig::buffer_t decompressionBuffer;
181			decompressionBuffer.Size = 0;
182			unsigned long decompressionBufferSize = 0;
183	schoenebeck	2	cout << "Seeking for available samples..." << flush;
184			gig::Sample* pSample = gig->GetFirstSample();
185			cout << "OK" << endl << flush;
186			while (pSample) {
187			samples++;
188			if (ordered) {
189			if ((*ordered)[samples] == false) {
190			pSample = gig->GetNextSample();
191			continue;
192			}
193			}
194			string name = pSample->pInfo->Name;
195			string filename = destdir;
196			if (filename[filename.size() - 1] != '/') filename += "/";
197			filename += ToString(samples);
198			filename += "_";
199			if (name == "") {
200			name = "(NO NAME)";
201			filename += "NONAME";
202			}
203			else {
204			filename += name;
205			name.insert(0, "\"");
206			name += "\"";
207			}
208			filename += ".wav";
209			if (pSample->Compressed) cout << "Decompressing ";
210			else cout << "Extracting ";
211			cout << "Sample " << samples << ") " << name << " (" << pSample->BitDepth <<"Bits, " << pSample->SamplesPerSecond << "Hz, " << pSample->Channels << " Channels, " << pSample->SamplesTotal << " Samples)..." << flush;
212
213
214			#if USE_DISK_STREAMING
215	persson	902	long neededsize = pSample->BitDepth == 24 ?
216			pSample->SamplesTotal * pSample->Channels * sizeof(int) :
217			pSample->SamplesTotal * pSample->FrameSize;
218	schoenebeck	2	if (BufferSize < neededsize) {
219			if (pWave) delete[] pWave;
220			pWave = new uint8_t[neededsize];
221			BufferSize = neededsize;
222			}
223	persson	902	pIntWave = (int*)pWave;
224	schoenebeck	2	# if HASHED_READS_TEST
225	persson	902	unsigned long readinthisrun = 0,
226	schoenebeck	2	samplepiecesize = 2000;
227			uint8_t* pSamplePiece = pWave;
228			do { // we read the sample in small pieces and increment the size with each run just to test streaming capability
229			readinthisrun = pSample->Read(pSamplePiece, ++samplepiecesize);
230	persson	902	pSamplePiece += readinthisrun * pSample->FrameSize;
231	schoenebeck	2	} while (readinthisrun == samplepiecesize);
232
233			# else // read in one piece
234			if (pSample->Compressed) {
235	persson	902	if (decompressionBufferSize < pSample->SamplesTotal) {
236			gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
237			decompressionBuffer = gig::Sample::CreateDecompressionBuffer(pSample->SamplesTotal);
238			decompressionBufferSize = pSample->SamplesTotal;
239			}
240			pSample->Read(pWave, pSample->SamplesTotal, &decompressionBuffer);
241			} else {
242	schoenebeck	2	pSample->Read(pWave, pSample->SamplesTotal);
243			}
244			# endif // HASHED_READS_TEST
245			#else // no disk streaming
246			if (pSample->Compressed) {
247	persson	902	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;
248			} else {
249			gig::buffer_t buffer = pSample->LoadSampleData(); // load wave into RAM
250			pWave = static_cast<uint8_t*>(buffer.pStart);
251			if (pSample->BitDepth == 24) {
252			long neededsize = pSample->SamplesTotal * pSample->Channels;
253			if (BufferSize < neededsize) {
254			if (pIntWave) delete[] pIntWave;
255			pIntWave = new int[neededsize];
256			BufferSize = neededsize;
257			}
258			}
259	schoenebeck	2	}
260			#endif // USE_DISK_STREAMING
261			if (pWave) {
262	persson	902
263			// Both libsndfile and libaudiofile uses int for 24 bit
264			// samples. libgig however returns 3 bytes per sample, so
265			// we have to convert the wave data before writing.
266			if (pSample->BitDepth == 24) {
267			int n = pSample->SamplesTotal * pSample->Channels;
268			for (int i = n - 1 ; i >= 0 ; i--) {
269			#if HAVE_SNDFILE
270			pIntWave[i] = pWave[i * 3] << 8 \| pWave[i * 3 + 1] << 16 \| pWave[i * 3 + 2] << 24;
271			#else
272			pIntWave[i] = pWave[i * 3] \| pWave[i * 3 + 1] << 8 \| pWave[i * 3 + 2] << 16;
273			#endif
274			}
275			}
276
277	schoenebeck	2	int res = writeWav(filename.c_str(),
278	persson	902	pSample->BitDepth == 24 ? static_cast<void*>(pIntWave) : pWave,
279	schoenebeck	2	pSample->SamplesTotal,
280			pSample->Channels,
281			pSample->BitDepth,
282			pSample->SamplesPerSecond);
283			if (res < 0) cout << "Couldn't write sample data." << endl;
284			else cout << "ok" << endl;
285			pSample->ReleaseSampleData(); // free wave from RAM
286			}
287			else cout << "Failed to load sample data." << endl;
288
289			pSample = gig->GetNextSample();
290			}
291	persson	902	gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
292			#if USE_DISK_STREAMING
293			if (pWave) delete[] pWave;
294			#else
295			if (pIntWave) delete[] pIntWave;
296			#endif
297	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
298	schoenebeck	2	closeAFlib();
299	schoenebeck	220	#endif // !HAVE_SNDFILE
300	schoenebeck	2	}
301
302			int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
303	schoenebeck	220	#if HAVE_SNDFILE
304			SNDFILE* hfile;
305			SF_INFO sfinfo;
306			int format = SF_FORMAT_WAV;
307			switch (bitdepth) {
308			case 8:
309			format \|= SF_FORMAT_PCM_S8;
310			break;
311			case 16:
312			format \|= SF_FORMAT_PCM_16;
313			break;
314			case 24:
315			format \|= SF_FORMAT_PCM_24;
316			break;
317			case 32:
318			format \|= SF_FORMAT_PCM_32;
319			break;
320			default:
321			cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
322			return -1;
323			}
324			memset(&sfinfo, 0, sizeof (sfinfo));
325			sfinfo.samplerate = rate;
326			sfinfo.frames = samplecount;
327			sfinfo.channels = channels;
328			sfinfo.format = format;
329			if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
330			cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
331			return -1;
332			}
333	persson	902	sf_count_t res = bitdepth == 24 ?
334			sf_write_int(hfile, static_cast<int>(samples), channels samplecount) :
335			sf_write_short(hfile, static_cast<short>(samples), channels samplecount);
336			if (res != channels * samplecount) {
337	schoenebeck	220	cerr << sf_strerror(hfile) << endl << flush;
338			sf_close(hfile);
339			return -1;
340			}
341			sf_close(hfile);
342	schoenebeck	608	#else // use libaudiofile
343	schoenebeck	2	AFfilesetup setup = _afNewFileSetup();
344			_afInitFileFormat(setup, AF_FILE_WAVE);
345			_afInitChannels(setup, AF_DEFAULT_TRACK, channels);
346			_afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth);
347			_afInitRate(setup, AF_DEFAULT_TRACK, rate);
348			if (setup == AF_NULL_FILESETUP) return -1;
349			AFfilehandle hFile = _afOpenFile(filename, "w", setup);
350			if (hFile == AF_NULL_FILEHANDLE) return -1;
351			if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
352			_afCloseFile(hFile);
353			_afFreeFileSetup(setup);
354	schoenebeck	220	#endif // HAVE_SNDFILE
355	schoenebeck	55
356	schoenebeck	220	return 0; // success
357	schoenebeck	2	}
358
359	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
360	schoenebeck	2	void openAFlib() {
361			hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
362			if (!hAFlib) {
363			cout << "Unable to load library libaudiofile.so: " << dlerror() << endl;
364			return;
365			}
366			_afNewFileSetup = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup");
367			_afFreeFileSetup = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup");
368			_afInitChannels = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels");
369			_afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat");
370			_afInitFileFormat = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat");
371			_afInitRate = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate");
372			_afWriteFrames = (int()(AFfilehandle,int,const void,int)) dlsym(hAFlib, "afWriteFrames");
373			_afOpenFile = (AFfilehandle()(const char,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile");
374			_afCloseFile = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile");
375			if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl;
376			}
377
378			void closeAFlib() {
379			if (hAFlib) dlclose(hAFlib);
380			}
381	schoenebeck	220	#endif // !HAVE_SNDFILE
382	schoenebeck	2
383	schoenebeck	518	string Revision() {
384	schoenebeck	933	string s = "$Revision: 1.9 $";
385	schoenebeck	518	return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
386			}
387
388			void PrintVersion() {
389			cout << "gigextract revision " << Revision() << endl;
390	schoenebeck	549	cout << "using " << gig::libraryName() << " " << gig::libraryVersion();
391			#if HAVE_SNDFILE
392			char versionBuffer[128];
393			sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128);
394			cout << ", " << versionBuffer;
395	schoenebeck	608	#else // use libaudiofile
396			cout << "\nbuilt against libaudiofile "
397			<< LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION;
398			# ifdef LIBAUDIOFILE_MICRO_VERSION
399			cout << "." << LIBAUDIOFILE_MICRO_VERSION;
400			# endif // LIBAUDIOFILE_MICRO_VERSION
401	schoenebeck	549	#endif // HAVE_SNDFILE
402			cout << endl;
403	schoenebeck	518	}
404
405	schoenebeck	2	void PrintUsage() {
406			cout << "gigextract - extracts samples from a Gigasampler file." << endl;
407			cout << endl;
408	schoenebeck	518	cout << "Usage: gigextract [-v] GIGFILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl;
409	schoenebeck	2	cout << endl;
410			cout << " GIGFILE Input Gigasampler (.gig) file." << endl;
411			cout << endl;
412			cout << " DESTDIR Destination directory where all .wav files will be written to." << endl;
413			cout << endl;
414			cout << " SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl;
415			cout << " If no sample indices are given, all samples will be extracted" << endl;
416			cout << " (use gigdump to look for available samples)." << endl;
417			cout << endl;
418	schoenebeck	518	cout << " -v Print version and exit." << endl;
419			cout << endl;
420	schoenebeck	2	}
421
422			string ToString(int i) {
423			static char strbuf[1024];
424			sprintf(strbuf,"%d",i);
425			string s = strbuf;
426			return s;
427			}