trunk/src/gigextract.cpp

/***************************************************************************
 *                                                                         *
 *   libgig - C++ cross-platform Gigasampler format file access library    *
 *                                                                         *
 *   Copyright (C) 2003-2013 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 <errno.h>

#include "gig.h"

#ifdef _MSC_VER
#define S_ISDIR(x) (S_IFDIR & (x))
#define S_IWUSR S_IWRITE
#define S_IXUSR S_IEXEC
#endif

#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(gig::Sample* sample, 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);
    struct stat buf;
    if (stat(argv[2], &buf) == -1) {
        cout << "Unable to open DESTDIR: ";
        switch (errno) {
            case EACCES:  cout << "Permission denied." << 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;
    } else if (!S_ISDIR(buf.st_mode)) {
        cout << "Unable to open DESTDIR: Is not a directory." << endl;
        return EXIT_FAILURE;
    } else if (!(S_IWUSR & buf.st_mode) || !(S_IXUSR & buf.st_mode)) {
        cout << "Unable to open DESTDIR: Permission denied." << endl;
        return EXIT_FAILURE;
    }
    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;
}

static std::string getLoopTypeText(gig::loop_type_t type) {
    switch (type) {
        case gig::loop_type_normal:
            return "normal";
        case gig::loop_type_bidirectional:
            return "pingpong";
        case gig::loop_type_backward:
            return "backward";
        default:
            return "INVALID";
    }
}

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;
    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";
        if (pSample->Loops > 0) {
            cout << ", LoopType "  << getLoopTypeText(pSample->LoopType)
                 << ", LoopStart " << pSample->LoopStart
                 << ", LoopEnd "   << pSample->LoopEnd;
        }
        cout << ")..." << 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(pSample,
                               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(gig::Sample* sample, const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
#if HAVE_SNDFILE
    SNDFILE* hfile;
    SF_INFO  sfinfo;
    SF_INSTRUMENT instr;
    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));
    memset(&instr, 0, sizeof (instr));
    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;
    }
    instr.basenote = sample->MIDIUnityNote;
    instr.detune = sample->FineTune;
    if (sample->Loops > 0) {
        instr.loop_count = 1;
        switch (sample->LoopType) {
            case gig::loop_type_normal:
                instr.loops[0].mode = SF_LOOP_FORWARD;
                break;
            case gig::loop_type_bidirectional:
                instr.loops[0].mode = SF_LOOP_ALTERNATING;
                break;
            case gig::loop_type_backward:
                instr.loops[0].mode = SF_LOOP_BACKWARD;
                break;
            default:
                instr.loops[0].mode = SF_LOOP_NONE;
                break;
        }
        instr.loops[0].start = sample->LoopStart;
        instr.loops[0].end   = sample->LoopEnd;
        instr.loops[0].count = sample->LoopPlayCount;
    }
    sf_command(hfile, SFC_SET_INSTRUMENT, &instr, sizeof(instr));
    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: 1.12 $";
    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	2465	* Copyright (C) 2003-2013 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 <errno.h>
50	schoenebeck	220
51	schoenebeck	1063	#include "gig.h"
52
53	persson	1869	#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	schoenebeck	1063	#if POSIX
60			# include <dlfcn.h>
61			#endif
62
63	schoenebeck	220	// 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	schoenebeck	608	// 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	schoenebeck	220	// 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	schoenebeck	2	using namespace std;
82
83			typedef map<unsigned int, bool> OrderMap;
84			OrderMap* pOrderedSamples = NULL;
85
86	schoenebeck	518	string Revision();
87			void PrintVersion();
88	schoenebeck	2	void PrintUsage();
89			void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered);
90	schoenebeck	2465	int writeWav(gig::Sample* sample, const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate);
91	schoenebeck	220	string ToString(int i);
92
93	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
94	schoenebeck	2	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	schoenebeck	220	#endif // !HAVE_SNDFILE
108	schoenebeck	2
109			int main(int argc, char *argv[]) {
110	schoenebeck	518	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	schoenebeck	2	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	persson	1869	struct stat buf;
137			if (stat(argv[2], &buf) == -1) {
138	schoenebeck	2	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	persson	1869	} 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	schoenebeck	2	}
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	schoenebeck	2465	static std::string getLoopTypeText(gig::loop_type_t type) {
181			switch (type) {
182			case gig::loop_type_normal:
183			return "normal";
184			case gig::loop_type_bidirectional:
185			return "pingpong";
186			case gig::loop_type_backward:
187			return "backward";
188			default:
189			return "INVALID";
190			}
191			}
192
193	schoenebeck	2	void ExtractSamples(gig::File* gig, char* destdir, OrderMap* ordered) {
194	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
195	schoenebeck	2	hAFlib = NULL;
196			openAFlib();
197	schoenebeck	220	#endif // !HAVE_SNDFILE
198	schoenebeck	2	uint8_t* pWave = NULL;
199	persson	902	int* pIntWave = NULL;
200	schoenebeck	2	long BufferSize = 0;
201			int samples = 0;
202	persson	902	gig::buffer_t decompressionBuffer;
203			decompressionBuffer.Size = 0;
204	schoenebeck	2	cout << "Seeking for available samples..." << flush;
205			gig::Sample* pSample = gig->GetFirstSample();
206			cout << "OK" << endl << flush;
207			while (pSample) {
208			samples++;
209			if (ordered) {
210			if ((*ordered)[samples] == false) {
211			pSample = gig->GetNextSample();
212			continue;
213			}
214			}
215			string name = pSample->pInfo->Name;
216			string filename = destdir;
217			if (filename[filename.size() - 1] != '/') filename += "/";
218			filename += ToString(samples);
219			filename += "_";
220			if (name == "") {
221			name = "(NO NAME)";
222			filename += "NONAME";
223			}
224			else {
225			filename += name;
226			name.insert(0, "\"");
227			name += "\"";
228			}
229			filename += ".wav";
230			if (pSample->Compressed) cout << "Decompressing ";
231			else cout << "Extracting ";
232	schoenebeck	2465	cout << "Sample " << samples << ") " << name << " (" << pSample->BitDepth <<"Bits, " << pSample->SamplesPerSecond << "Hz, " << pSample->Channels << " Channels, " << pSample->SamplesTotal << " Samples";
233			if (pSample->Loops > 0) {
234			cout << ", LoopType " << getLoopTypeText(pSample->LoopType)
235			<< ", LoopStart " << pSample->LoopStart
236			<< ", LoopEnd " << pSample->LoopEnd;
237			}
238			cout << ")..." << flush;
239	schoenebeck	2
240
241			#if USE_DISK_STREAMING
242	persson	902	long neededsize = pSample->BitDepth == 24 ?
243			pSample->SamplesTotal * pSample->Channels * sizeof(int) :
244			pSample->SamplesTotal * pSample->FrameSize;
245	schoenebeck	2	if (BufferSize < neededsize) {
246			if (pWave) delete[] pWave;
247			pWave = new uint8_t[neededsize];
248			BufferSize = neededsize;
249			}
250	persson	902	pIntWave = (int*)pWave;
251	schoenebeck	2	# if HASHED_READS_TEST
252	persson	902	unsigned long readinthisrun = 0,
253	schoenebeck	2	samplepiecesize = 2000;
254			uint8_t* pSamplePiece = pWave;
255			do { // we read the sample in small pieces and increment the size with each run just to test streaming capability
256			readinthisrun = pSample->Read(pSamplePiece, ++samplepiecesize);
257	persson	902	pSamplePiece += readinthisrun * pSample->FrameSize;
258	schoenebeck	2	} while (readinthisrun == samplepiecesize);
259
260			# else // read in one piece
261			if (pSample->Compressed) {
262	persson	902	if (decompressionBufferSize < pSample->SamplesTotal) {
263			gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
264			decompressionBuffer = gig::Sample::CreateDecompressionBuffer(pSample->SamplesTotal);
265			decompressionBufferSize = pSample->SamplesTotal;
266			}
267			pSample->Read(pWave, pSample->SamplesTotal, &decompressionBuffer);
268			} else {
269	schoenebeck	2	pSample->Read(pWave, pSample->SamplesTotal);
270			}
271			# endif // HASHED_READS_TEST
272			#else // no disk streaming
273			if (pSample->Compressed) {
274	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;
275			} else {
276			gig::buffer_t buffer = pSample->LoadSampleData(); // load wave into RAM
277			pWave = static_cast<uint8_t*>(buffer.pStart);
278			if (pSample->BitDepth == 24) {
279			long neededsize = pSample->SamplesTotal * pSample->Channels;
280			if (BufferSize < neededsize) {
281			if (pIntWave) delete[] pIntWave;
282			pIntWave = new int[neededsize];
283			BufferSize = neededsize;
284			}
285			}
286	schoenebeck	2	}
287			#endif // USE_DISK_STREAMING
288			if (pWave) {
289	persson	902
290			// Both libsndfile and libaudiofile uses int for 24 bit
291			// samples. libgig however returns 3 bytes per sample, so
292			// we have to convert the wave data before writing.
293			if (pSample->BitDepth == 24) {
294			int n = pSample->SamplesTotal * pSample->Channels;
295			for (int i = n - 1 ; i >= 0 ; i--) {
296			#if HAVE_SNDFILE
297			pIntWave[i] = pWave[i * 3] << 8 \| pWave[i * 3 + 1] << 16 \| pWave[i * 3 + 2] << 24;
298			#else
299			pIntWave[i] = pWave[i * 3] \| pWave[i * 3 + 1] << 8 \| pWave[i * 3 + 2] << 16;
300			#endif
301			}
302			}
303
304	schoenebeck	2465	int res = writeWav(pSample,
305			filename.c_str(),
306	persson	902	pSample->BitDepth == 24 ? static_cast<void*>(pIntWave) : pWave,
307	schoenebeck	2	pSample->SamplesTotal,
308			pSample->Channels,
309			pSample->BitDepth,
310			pSample->SamplesPerSecond);
311			if (res < 0) cout << "Couldn't write sample data." << endl;
312			else cout << "ok" << endl;
313			pSample->ReleaseSampleData(); // free wave from RAM
314			}
315			else cout << "Failed to load sample data." << endl;
316
317			pSample = gig->GetNextSample();
318			}
319	persson	902	gig::Sample::DestroyDecompressionBuffer(decompressionBuffer);
320			#if USE_DISK_STREAMING
321			if (pWave) delete[] pWave;
322			#else
323			if (pIntWave) delete[] pIntWave;
324			#endif
325	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
326	schoenebeck	2	closeAFlib();
327	schoenebeck	220	#endif // !HAVE_SNDFILE
328	schoenebeck	2	}
329
330	schoenebeck	2465	int writeWav(gig::Sample* sample, const char* filename, void* samples, long samplecount, int channels, int bitdepth, long rate) {
331	schoenebeck	220	#if HAVE_SNDFILE
332			SNDFILE* hfile;
333			SF_INFO sfinfo;
334	schoenebeck	2465	SF_INSTRUMENT instr;
335	schoenebeck	220	int format = SF_FORMAT_WAV;
336			switch (bitdepth) {
337			case 8:
338			format \|= SF_FORMAT_PCM_S8;
339			break;
340			case 16:
341			format \|= SF_FORMAT_PCM_16;
342			break;
343			case 24:
344			format \|= SF_FORMAT_PCM_24;
345			break;
346			case 32:
347			format \|= SF_FORMAT_PCM_32;
348			break;
349			default:
350			cerr << "Error: Bithdepth " << ToString(bitdepth) << " not supported by libsndfile, ignoring sample!\n" << flush;
351			return -1;
352			}
353			memset(&sfinfo, 0, sizeof (sfinfo));
354	schoenebeck	2465	memset(&instr, 0, sizeof (instr));
355	schoenebeck	220	sfinfo.samplerate = rate;
356			sfinfo.frames = samplecount;
357			sfinfo.channels = channels;
358			sfinfo.format = format;
359			if (!(hfile = sf_open(filename, SFM_WRITE, &sfinfo))) {
360			cerr << "Error: Unable to open output file \'" << filename << "\'.\n" << flush;
361			return -1;
362			}
363	schoenebeck	2465	instr.basenote = sample->MIDIUnityNote;
364			instr.detune = sample->FineTune;
365			if (sample->Loops > 0) {
366			instr.loop_count = 1;
367			switch (sample->LoopType) {
368			case gig::loop_type_normal:
369			instr.loops[0].mode = SF_LOOP_FORWARD;
370			break;
371			case gig::loop_type_bidirectional:
372			instr.loops[0].mode = SF_LOOP_ALTERNATING;
373			break;
374			case gig::loop_type_backward:
375			instr.loops[0].mode = SF_LOOP_BACKWARD;
376			break;
377			default:
378			instr.loops[0].mode = SF_LOOP_NONE;
379			break;
380			}
381			instr.loops[0].start = sample->LoopStart;
382			instr.loops[0].end = sample->LoopEnd;
383			instr.loops[0].count = sample->LoopPlayCount;
384			}
385			sf_command(hfile, SFC_SET_INSTRUMENT, &instr, sizeof(instr));
386	persson	902	sf_count_t res = bitdepth == 24 ?
387			sf_write_int(hfile, static_cast<int>(samples), channels samplecount) :
388			sf_write_short(hfile, static_cast<short>(samples), channels samplecount);
389			if (res != channels * samplecount) {
390	schoenebeck	220	cerr << sf_strerror(hfile) << endl << flush;
391			sf_close(hfile);
392			return -1;
393			}
394			sf_close(hfile);
395	schoenebeck	608	#else // use libaudiofile
396	schoenebeck	2	AFfilesetup setup = _afNewFileSetup();
397			_afInitFileFormat(setup, AF_FILE_WAVE);
398			_afInitChannels(setup, AF_DEFAULT_TRACK, channels);
399			_afInitSampleFormat(setup, AF_DEFAULT_TRACK, AF_SAMPFMT_TWOSCOMP, bitdepth);
400			_afInitRate(setup, AF_DEFAULT_TRACK, rate);
401			if (setup == AF_NULL_FILESETUP) return -1;
402			AFfilehandle hFile = _afOpenFile(filename, "w", setup);
403			if (hFile == AF_NULL_FILEHANDLE) return -1;
404			if (_afWriteFrames(hFile, AF_DEFAULT_TRACK, samples, samplecount) < 0) return -1;
405			_afCloseFile(hFile);
406			_afFreeFileSetup(setup);
407	schoenebeck	220	#endif // HAVE_SNDFILE
408	schoenebeck	55
409	schoenebeck	220	return 0; // success
410	schoenebeck	2	}
411
412	schoenebeck	608	#if !HAVE_SNDFILE // use libaudiofile
413	schoenebeck	2	void openAFlib() {
414			hAFlib = dlopen("libaudiofile.so", RTLD_NOW);
415			if (!hAFlib) {
416			cout << "Unable to load library libaudiofile.so: " << dlerror() << endl;
417			return;
418			}
419			_afNewFileSetup = (AFfilesetup(*)(void)) dlsym(hAFlib, "afNewFileSetup");
420			_afFreeFileSetup = (void(*)(AFfilesetup)) dlsym(hAFlib, "afFreeFileSetup");
421			_afInitChannels = (void(*)(AFfilesetup,int,int)) dlsym(hAFlib, "afInitChannels");
422			_afInitSampleFormat = (void(*)(AFfilesetup,int,int,int)) dlsym(hAFlib, "afInitSampleFormat");
423			_afInitFileFormat = (void(*)(AFfilesetup,int)) dlsym(hAFlib, "afInitFileFormat");
424			_afInitRate = (void(*)(AFfilesetup,int,double)) dlsym(hAFlib, "afInitRate");
425			_afWriteFrames = (int()(AFfilehandle,int,const void,int)) dlsym(hAFlib, "afWriteFrames");
426			_afOpenFile = (AFfilehandle()(const char,const char*,AFfilesetup)) dlsym(hAFlib, "afOpenFile");
427			_afCloseFile = (int(*)(AFfilehandle file)) dlsym(hAFlib, "afCloseFile");
428			if (dlerror()) cout << "Failed to load function from libaudiofile.so: " << dlerror() << endl;
429			}
430
431			void closeAFlib() {
432			if (hAFlib) dlclose(hAFlib);
433			}
434	schoenebeck	220	#endif // !HAVE_SNDFILE
435	schoenebeck	2
436	schoenebeck	518	string Revision() {
437	schoenebeck	1953	string s = "$Revision: 1.12 $";
438	schoenebeck	518	return s.substr(11, s.size() - 13); // cut dollar signs, spaces and CVS macro keyword
439			}
440
441			void PrintVersion() {
442			cout << "gigextract revision " << Revision() << endl;
443	schoenebeck	549	cout << "using " << gig::libraryName() << " " << gig::libraryVersion();
444			#if HAVE_SNDFILE
445			char versionBuffer[128];
446			sf_command(NULL, SFC_GET_LIB_VERSION, versionBuffer, 128);
447			cout << ", " << versionBuffer;
448	schoenebeck	608	#else // use libaudiofile
449			cout << "\nbuilt against libaudiofile "
450			<< LIBAUDIOFILE_MAJOR_VERSION << "." << LIBAUDIOFILE_MINOR_VERSION;
451			# ifdef LIBAUDIOFILE_MICRO_VERSION
452			cout << "." << LIBAUDIOFILE_MICRO_VERSION;
453			# endif // LIBAUDIOFILE_MICRO_VERSION
454	schoenebeck	549	#endif // HAVE_SNDFILE
455			cout << endl;
456	schoenebeck	518	}
457
458	schoenebeck	2	void PrintUsage() {
459			cout << "gigextract - extracts samples from a Gigasampler file." << endl;
460			cout << endl;
461	schoenebeck	518	cout << "Usage: gigextract [-v] GIGFILE DESTDIR [SAMPLENR] [ [SAMPLENR] ...]" << endl;
462	schoenebeck	2	cout << endl;
463			cout << " GIGFILE Input Gigasampler (.gig) file." << endl;
464			cout << endl;
465			cout << " DESTDIR Destination directory where all .wav files will be written to." << endl;
466			cout << endl;
467			cout << " SAMPLENR Index (/indices) of Sample(s) which should be extracted." << endl;
468			cout << " If no sample indices are given, all samples will be extracted" << endl;
469			cout << " (use gigdump to look for available samples)." << endl;
470			cout << endl;
471	schoenebeck	518	cout << " -v Print version and exit." << endl;
472			cout << endl;
473	schoenebeck	2	}
474
475			string ToString(int i) {
476			static char strbuf[1024];
477			sprintf(strbuf,"%d",i);
478			string s = strbuf;
479			return s;
480			}