src/tools/gigextract.cpp

/***************************************************************************
 *                                                                         *
 *   libgig - C++ cross-platform Gigasampler format file access library    *
 *                                                                         *
 *   Copyright (C) 2003-2007 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 "gig.h"

#if POSIX
# include <dlfcn.h>
#endif

// 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

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: 1.10 $";
    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	1063	* Copyright (C) 2003-2007 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	schoenebeck	220
52	schoenebeck	1063	#include "gig.h"
53
54			#if POSIX
55			# include <dlfcn.h>
56			#endif
57
58	schoenebeck	220	// only libsndfile is available for Windows, so we use that for writing the sound files
59			#ifdef WIN32
60			# define HAVE_SNDFILE 1
61			#endif // WIN32
62
63	schoenebeck	608	// abort compilation here if neither libsndfile nor libaudiofile are available
64			#if !HAVE_SNDFILE && !HAVE_AUDIOFILE
65			# error "Neither libsndfile nor libaudiofile seem to be available!"
66			# error "(HAVE_SNDFILE and HAVE_AUDIOFILE are both false)"
67			#endif
68
69	schoenebeck	220	// we prefer libsndfile before libaudiofile
70			#if HAVE_SNDFILE
71			# include <sndfile.h>
72			#else
73			# include <audiofile.h>
74			#endif // HAVE_SNDFILE
75
76	schoenebeck	2	using namespace std;
77
78			typedef map<unsigned int, bool> OrderMap;
79			OrderMap* pOrderedSamples = NULL;
80
81	schoenebeck	518	string Revision();
82			void PrintVersion();
83	schoenebeck	2	void PrintUsage();
84			void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
85			int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
86	schoenebeck	220	string ToString(int i);
87
88	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
89	schoenebeck	2	void* hAFlib; // handle to libaudiofile
90			void openAFlib(void);
91			void closeAFlib(void);
92			// pointers to libaudiofile functions
93			AFfilesetup(*_afNewFileSetup)(void);
94			void(*_afFreeFileSetup)(AFfilesetup);
95			void(*_afInitChannels)(AFfilesetup,int,int);
96			void(*_afInitSampleFormat)(AFfilesetup,int,int,int);
97			void(*_afInitFileFormat)(AFfilesetup,int);
98			void(*_afInitRate)(AFfilesetup,int,double);
99			int(_afWriteFrames)(AFfilehandle,int,const void,int);
100			AFfilehandle(_afOpenFile)(const char,const char*,AFfilesetup);
101			int(*_afCloseFile)(AFfilehandle file);
102	schoenebeck	220	#endif // !HAVE_SNDFILE
103	schoenebeck	2
104			int main(int argc, char *argv[]) {
105	schoenebeck	518	if (argc >= 2) {
106			if (argv[1][0] == '-') {
107			switch (argv[1][1]) {
108			case 'v':
109			PrintVersion();
110			return EXIT_SUCCESS;
111			}
112			}
113			}
114	schoenebeck	2	if (argc < 3) {
115			PrintUsage();
116			return EXIT_FAILURE;
117			}
118			if (argc > 3) { // extracting specific samples
119			pOrderedSamples = new OrderMap;
120			for (int i = 3; i < argc; i++) {
121			unsigned int index = atoi(argv[i]);
122			(*pOrderedSamples)[index] = true;
123			}
124			}
125			FILE* hFile = fopen(argv[1], "r");
126			if (!hFile) {
127			cout << "Invalid input file argument!" << endl;
128			return EXIT_FAILURE;
129			}
130			fclose(hFile);
131			DIR* dir = opendir(argv[2]);
132			if (!dir) {
133			cout << "Unable to open DESTDIR: ";
134			switch (errno) {
135			case EACCES: cout << "Permission denied." << endl;
136			break;
137			case EMFILE: cout << "Too many file descriptors in use by process." << endl;
138			break;
139			case ENFILE: cout << "Too many files are currently open in the system." << endl;
140			break;
141			case ENOENT: cout << "Directory does not exist, or name is an empty string." << endl;
142			break;
143			case ENOMEM: cout << "Insufficient memory to complete the operation." << endl;
144			break;
145			case ENOTDIR: cout << "Is not a directory." << endl;
146			break;
147			default: cout << "Unknown error" << endl;
148			}
149			return EXIT_FAILURE;
150			}
151			if (dir) closedir(dir);
152			try {
153			RIFF::File* riff = new RIFF::File(argv[1]);
154			gig::File* gig = new gig::File(riff);
155			cout << "Extracting samples from \"" << argv[1] << "\" to directory \"" << argv[2] << "\"." << endl << flush;
156			ExtractSamples(gig, argv[2], pOrderedSamples);
157			cout << "Extraction finished." << endl << flush;
158			delete gig;
159			delete riff;
160			if (pOrderedSamples) delete pOrderedSamples;
161			}
162			catch (RIFF::Exception e) {
163			e.PrintMessage();
164			return EXIT_FAILURE;
165			}
166			catch (...) {
167			cout << "Unknown exception while trying to parse file." << endl;
168			return EXIT_FAILURE;
169			}
170
171			return EXIT_SUCCESS;
172			}
173
174			void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
175	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
176	schoenebeck	2	hAFlib = NULL;
177			openAFlib();
178	schoenebeck	220	#endif // !HAVE_SNDFILE
179	schoenebeck	2	uint8_t* pWave = NULL;
180	persson	902	int* pIntWave = NULL;
181	schoenebeck	2	long BufferSize = 0;
182			int samples = 0;
183	persson	902	gig::buffer_t decompressionBuffer;
184			decompressionBuffer.Size = 0;
185			unsigned long decompressionBufferSize = 0;
186	schoenebeck	2	cout << "Seeking for available samples..." << flush;
187			gig::Sample* pSample = gig->GetFirstSample();
188			cout << "OK" << endl << flush;
189			while (pSample) {
190			samples++;
191			if (ordered) {
192			if ((*ordered)[samples] == false) {
193			pSample = gig->GetNextSample();
194			continue;
195			}
196			}
197			string name = pSample->pInfo->Name;
198			string filename = destdir;
199			if (filename[filename.size() - 1] != '/') filename += "/";
200			filename += ToString(samples);
201			filename += "_";
202			if (name == "") {
203			name = "(NO NAME)";
204			filename += "NONAME";
205			}
206			else {
207			filename += name;
208			name.insert(0, "\"");
209			name += "\"";
210			}
211			filename += ".wav";
212			if (pSample->Compressed) cout << "Decompressing ";
213			else cout << "Extracting ";
214			cout << "Sample " << samples << ") " << name << " (" << pSample->BitDepth <<"Bits, " << pSample->SamplesPerSecond << "Hz, " << pSample->Channels << " Channels, " << pSample->SamplesTotal << " Samples)..." << flush;
215
216
217			#if USE_DISK_STREAMING
218	persson	902	long neededsize = pSample->BitDepth == 24 ?
219			pSample->SamplesTotal * pSample->Channels * sizeof(int) :
220			pSample->SamplesTotal * pSample->FrameSize;
221	schoenebeck	2	if (BufferSize < neededsize) {
222			if (pWave) delete[] pWave;
223			pWave = new uint8_t[neededsize];
224			BufferSize = neededsize;
225			}
226	persson	902	pIntWave = (int*)pWave;
227	schoenebeck	2	# if HASHED_READS_TEST
228	persson	902	unsigned long readinthisrun = 0,
229	schoenebeck	2	samplepiecesize = 2000;
230			uint8_t* pSamplePiece = pWave;
231			do { // we read the sample in small pieces and increment the size with each run just to test streaming capability
232			readinthisrun = pSample->Read(pSamplePiece, ++samplepiecesize);
233	persson	902	pSamplePiece += readinthisrun * pSample->FrameSize;
234	schoenebeck	2	} while (readinthisrun == samplepiecesize);
235
236			# else // read in one piece
237			if (pSample->Compressed) {
238	persson	902	if (decompressionBufferSize < pSample->SamplesTotal) {
239			gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
240			decompressionBuffer = gig::Sample::CreateDecompressionBuffer(pSample->SamplesTotal);
241			decompressionBufferSize = pSample->SamplesTotal;
242			}
243			pSample->Read(pWave, pSample->SamplesTotal, &decompressionBuffer);
244			} else {
245	schoenebeck	2	pSample->Read(pWave, pSample->SamplesTotal);
246			}
247			# endif // HASHED_READS_TEST
248			#else // no disk streaming
249			if (pSample->Compressed) {
250	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;
251			} else {
252			gig::buffer_t buffer = pSample->LoadSampleData(); // load wave into RAM
253			pWave = static_cast<uint8_t*>(buffer.pStart);
254			if (pSample->BitDepth == 24) {
255			long neededsize = pSample->SamplesTotal * pSample->Channels;
256			if (BufferSize < neededsize) {
257			if (pIntWave) delete[] pIntWave;
258			pIntWave = new int[neededsize];
259			BufferSize = neededsize;
260			}
261			}
262	schoenebeck	2	}
263			#endif // USE_DISK_STREAMING
264			if (pWave) {
265	persson	902
266			// Both libsndfile and libaudiofile uses int for 24 bit
267			// samples. libgig however returns 3 bytes per sample, so
268			// we have to convert the wave data before writing.
269			if (pSample->BitDepth == 24) {
270			int n = pSample->SamplesTotal * pSample->Channels;
271			for (int i = n - 1 ; i >= 0 ; i--) {
272			#if HAVE_SNDFILE
273			pIntWave[i] = pWave[i * 3] << 8 \| pWave[i * 3 + 1] << 16 \| pWave[i * 3 + 2] << 24;
274			#else
275			pIntWave[i] = pWave[i * 3] \| pWave[i * 3 + 1] << 8 \| pWave[i * 3 + 2] << 16;
276			#endif
277			}
278			}
279
280	schoenebeck	2	int res = writeWav(filename.c_str(),
281	persson	902	pSample->BitDepth == 24 ? static_cast<void*>(pIntWave) : pWave,
282	schoenebeck	2	pSample->SamplesTotal,
283			pSample->Channels,
284			pSample->BitDepth,
285			pSample->SamplesPerSecond);
286			if (res < 0) cout << "Couldn't write sample data." << endl;
287			else cout << "ok" << endl;
288			pSample->ReleaseSampleData(); // free wave from RAM
289			}
290			else cout << "Failed to load sample data." << endl;
291
292			pSample = gig->GetNextSample();
293			}
294	persson	902	gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
295			#if USE_DISK_STREAMING
296			if (pWave) delete[] pWave;
297			#else
298			if (pIntWave) delete[] pIntWave;
299			#endif
300	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
301	schoenebeck	2	closeAFlib();
302	schoenebeck	220	#endif // !HAVE_SNDFILE
303	schoenebeck	2	}
304
305			int writeWav(const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
306	schoenebeck	220	#if HAVE_SNDFILE
307			SNDFILE* hfile;
308			SF_INFO sfinfo;
309			int format = SF_FORMAT_WAV;
310			switch (bitdepth) {
311			case 8:
312			format \|= SF_FORMAT_PCM_S8;
313			break;
314			case 16:
315			format \|= SF_FORMAT_PCM_16;
316			break;
317			case 24:
318			format \|= SF_FORMAT_PCM_24;
319			break;
320			case 32:
321			format \|= SF_FORMAT_PCM_32;
322			break;
323			default:
324			cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
325			return -1;
326			}
327			memset(&sfinfo, 0, sizeof (sfinfo));
328			sfinfo.samplerate = rate;
329			sfinfo.frames = samplecount;
330			sfinfo.channels = channels;
331			sfinfo.format = format;
332			if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
333			cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
334			return -1;
335			}
336	persson	902	sf_count_t res = bitdepth == 24 ?
337			sf_write_int(hfile, static_cast<int>(samples), channels samplecount) :
338			sf_write_short(hfile, static_cast<short>(samples), channels samplecount);
339			if (res != channels * samplecount) {
340	schoenebeck	220	cerr << sf_strerror(hfile) << endl << flush;
341			sf_close(hfile);
342			return -1;
343			}
344			sf_close(hfile);
345	schoenebeck	608	#else // use libaudiofile
346	schoenebeck	2	AFfilesetup setup = _afNewFileSetup();
347			_afInitFileFormat(setup, AF_FILE_WAVE);
348			_afInitChannels(setup, AF_DEFAULT_TRACK, channels);
349			_afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth);
350			_afInitRate(setup, AF_DEFAULT_TRACK, rate);
351			if (setup == AF_NULL_FILESETUP) return -1;
352			AFfilehandle hFile = _afOpenFile(filename, "w", setup);
353			if (hFile == AF_NULL_FILEHANDLE) return -1;
354			if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
355			_afCloseFile(hFile);
356			_afFreeFileSetup(setup);
357	schoenebeck	220	#endif // HAVE_SNDFILE
358	schoenebeck	55
359	schoenebeck	220	return 0; // success
360	schoenebeck	2	}
361
362	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
363	schoenebeck	2	void openAFlib() {
364			hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
365			if (!hAFlib) {
366			cout << "Unable to load library libaudiofile.so: " << dlerror() << endl;
367			return;
368			}
369			_afNewFileSetup = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup");
370			_afFreeFileSetup = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup");
371			_afInitChannels = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels");
372			_afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat");
373			_afInitFileFormat = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat");
374			_afInitRate = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate");
375			_afWriteFrames = (int()(AFfilehandle,int,const void,int)) dlsym(hAFlib, "afWriteFrames");
376			_afOpenFile = (AFfilehandle()(const char,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile");
377			_afCloseFile = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile");
378			if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl;
379			}
380
381			void closeAFlib() {
382			if (hAFlib) dlclose(hAFlib);
383			}
384	schoenebeck	220	#endif // !HAVE_SNDFILE
385	schoenebeck	2
386	schoenebeck	518	string Revision() {
387	schoenebeck	1063	string s = "$Revision: 1.10 $";
388	schoenebeck	518	return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
389			}
390
391			void PrintVersion() {
392			cout << "gigextract revision " << Revision() << endl;
393	schoenebeck	549	cout << "using " << gig::libraryName() << " " << gig::libraryVersion();
394			#if HAVE_SNDFILE
395			char versionBuffer[128];
396			sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128);
397			cout << ", " << versionBuffer;
398	schoenebeck	608	#else // use libaudiofile
399			cout << "\nbuilt against libaudiofile "
400			<< LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION;
401			# ifdef LIBAUDIOFILE_MICRO_VERSION
402			cout << "." << LIBAUDIOFILE_MICRO_VERSION;
403			# endif // LIBAUDIOFILE_MICRO_VERSION
404	schoenebeck	549	#endif // HAVE_SNDFILE
405			cout << endl;
406	schoenebeck	518	}
407
408	schoenebeck	2	void PrintUsage() {
409			cout << "gigextract - extracts samples from a Gigasampler file." << endl;
410			cout << endl;
411	schoenebeck	518	cout << "Usage: gigextract [-v] GIGFILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl;
412	schoenebeck	2	cout << endl;
413			cout << " GIGFILE Input Gigasampler (.gig) file." << endl;
414			cout << endl;
415			cout << " DESTDIR Destination directory where all .wav files will be written to." << endl;
416			cout << endl;
417			cout << " SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl;
418			cout << " If no sample indices are given, all samples will be extracted" << endl;
419			cout << " (use gigdump to look for available samples)." << endl;
420			cout << endl;
421	schoenebeck	518	cout << " -v Print version and exit." << endl;
422			cout << endl;
423	schoenebeck	2	}
424
425			string ToString(int i) {
426			static char strbuf[1024];
427			sprintf(strbuf,"%d",i);
428			string s = strbuf;
429			return s;
430			}