int main(int argc, char *argv[])
{
FMOD::System *system = 0;
FMOD::Sound *sound = 0;
FMOD_RESULT result;
FMOD_CREATESOUNDEXINFO exinfo;
int key, recorddriver, numdrivers, count;
unsigned int version;
FILE *fp;
unsigned int datalength = 0, soundlength;
bool iscoreaudio = false;
/*
Create a System object and initialize.
*/
result = FMOD::System_Create(&system);
ERRCHECK(result);
result = system->getVersion(&version);
ERRCHECK(result);
if (version < FMOD_VERSION)
{
printf("Error! You are using an old version of FMOD %08x. This program requires %08x\n", version, FMOD_VERSION);
return 0;
}
result = system->setOutput(FMOD_OUTPUTTYPE_COREAUDIO);
ERRCHECK(result);
/*
Enumerate record devices
*/
result = system->getRecordNumDrivers(&numdrivers);
ERRCHECK(result);
printf("---------------------------------------------------------\n");
printf("Choose a RECORD driver\n");
printf("---------------------------------------------------------\n");
for (count=0; count < numdrivers; count++)
{
char name[256];
result = system->getRecordDriverInfo(count, name, 256, 0);
ERRCHECK(result);
printf("%d : %s\n", count + 1, name);
}
printf("---------------------------------------------------------\n");
printf("Press a corresponding number or ESC to quit\n");
recorddriver = 0;
do
{
key = getch();
if (key == 27)
{
return 0;
}
recorddriver = key - '1';
} while (recorddriver < 0 || recorddriver >= numdrivers);
printf("\n");
result = system->init(32, FMOD_INIT_NORMAL, 0);
ERRCHECK(result);
memset(&exinfo, 0, sizeof(FMOD_CREATESOUNDEXINFO));
exinfo.cbsize = sizeof(FMOD_CREATESOUNDEXINFO);
exinfo.numchannels = 2;
exinfo.defaultfrequency = 44100;
if (iscoreaudio)
{
exinfo.format = FMOD_SOUND_FORMAT_PCMFLOAT;
exinfo.length = exinfo.defaultfrequency * sizeof(float) * exinfo.numchannels * 2;
}
else
{
exinfo.format = FMOD_SOUND_FORMAT_PCM16;
exinfo.length = exinfo.defaultfrequency * sizeof(short) * exinfo.numchannels * 2;
}
result = system->createSound(0, FMOD_2D | FMOD_SOFTWARE | FMOD_OPENUSER, &exinfo, &sound);
ERRCHECK(result);
printf("========================================================================\n");
printf("Record to disk example. Copyright (c) Firelight Technologies 2004-2014.\n");
printf("========================================================================\n");
printf("\n");
printf("Press a key to start recording to record.wav\n");
printf("\n");
getch();
result = system->recordStart(recorddriver, sound, true);
ERRCHECK(result);
printf("Press 'Esc' to quit\n");
printf("\n");
fp = fopen("record.wav", "wb");
if (!fp)
{
printf("ERROR : could not open record.wav for writing.\n");
return 1;
}
/*
Write out the wav header. As we don't know the length yet it will be 0.
*/
WriteWavHeader(fp, sound, datalength);
result = sound->getLength(&soundlength, FMOD_TIMEUNIT_PCM);
ERRCHECK(result);
/*
Main loop.
*/
do
{
static unsigned int lastrecordpos = 0;
unsigned int recordpos = 0;
if (kbhit())
{
key = getch();
}
system->getRecordPosition(recorddriver, &recordpos);
ERRCHECK(result);
if (recordpos != lastrecordpos)
{
void *ptr1, *ptr2;
int blocklength;
unsigned int len1, len2;
blocklength = (int)recordpos - (int)lastrecordpos;
if (blocklength < 0)
{
blocklength += soundlength;
}
/*
Lock the sound to get access to the raw data.
*/
if(iscoreaudio)
{
sound->lock(lastrecordpos * 8, blocklength * 8, &ptr1, &ptr2, &len1, &len2); /* *8 = stereo 32bit. 1 sample = 8 bytes. */
}
else
{
sound->lock(lastrecordpos * 4, blocklength * 4, &ptr1, &ptr2, &len1, &len2); /* *4 = stereo 16bit. 1 sample = 4 bytes. */
}
/*
Write it to disk.
*/
if (ptr1 && len1)
{
#ifdef __BIG_ENDIAN__
if (exinfo.format == FMOD_SOUND_FORMAT_PCM16)
{
signed short *wptr = (signed short *)ptr1;
for (int count = 0; count < len1 >> 1; count++)
{
wptr[count] = SWAPENDIAN_WORD(wptr[count]);
}
}
else if (exinfo.format == FMOD_SOUND_FORMAT_PCMFLOAT)
{
float *fptr = (float *)ptr1;
for (int count = 0; count < len1 >> 2; count++)
{
SWAPENDIAN_FLOAT(fptr[count]);
}
}
#endif
datalength += fwrite(ptr1, 1, len1, fp);
}
if (ptr2 && len2)
{
#ifdef __BIG_ENDIAN__
if (exinfo.format == FMOD_SOUND_FORMAT_PCM16)
{
signed short *wptr = (signed short *)ptr2;
for (int count = 0; count < len2 >> 1; count++)
{
wptr[count] = SWAPENDIAN_WORD(wptr[count]);
}
}
else if (exinfo.format == FMOD_SOUND_FORMAT_PCMFLOAT)
{
float *fptr = (float *)ptr2;
for (int count = 0; count < len2 >> 2; count++)
{
SWAPENDIAN_FLOAT(fptr[count]);
}
}
#endif
datalength += fwrite(ptr2, 1, len2, fp);
}
/*
Unlock the sound to allow FMOD to use it again.
*/
sound->unlock(ptr1, ptr2, len1, len2);
}
lastrecordpos = recordpos;
printf("\rRecord buffer pos = %6d : Record time = %02d:%02d", recordpos, datalength / exinfo.defaultfrequency / 4 / 60, (datalength / exinfo.defaultfrequency / 4) % 60);
fflush(stdout);
system->update();
Sleep(10);
} while (key != 27);
printf("\n");
/*
Write back the wav header now that we know its length.
*/
WriteWavHeader(fp, sound, datalength);
fclose(fp);
/*
Shut down
*/
result = sound->release();
ERRCHECK(result);
result = system->release();
ERRCHECK(result);
return 0;
}
/*
[
[DESCRIPTION]
Writes out the contents of a record buffer to a file.
[PARAMETERS]
[RETURN_VALUE]
void
[REMARKS]
]
*/
void SaveToWav(FMOD_SOUND *sound)
{
FILE *fp;
int channels, bits;
float rate;
void *ptr1, *ptr2;
unsigned int lenbytes, len1, len2;
FMOD_SOUND_FORMAT format;
int count = 0;
if (!sound)
{
return;
}
FMOD_Sound_GetFormat (sound, 0, &format, &channels, &bits);
FMOD_Sound_GetDefaults(sound, &rate, 0, 0, 0);
FMOD_Sound_GetLength (sound, &lenbytes, FMOD_TIMEUNIT_PCMBYTES);
{
/*
WAV Structures
*/
typedef struct
{
signed char id[4];
int size;
} RiffChunk;
struct
{
RiffChunk chunk __PACKED;
unsigned short wFormatTag __PACKED; /* format type */
unsigned short nChannels __PACKED; /* number of channels (i.e. mono, stereo...) */
unsigned int nSamplesPerSec __PACKED; /* sample rate */
unsigned int nAvgBytesPerSec __PACKED; /* for buffer estimation */
unsigned short nBlockAlign __PACKED; /* block size of data */
unsigned short wBitsPerSample __PACKED; /* number of bits per sample of mono data */
} __PACKED FmtChunk = { {{'f','m','t',' '}, sizeof(FmtChunk) - sizeof(RiffChunk) }, 1, channels, (int)rate, (int)rate * channels * bits / 8, 1 * channels * bits / 8, bits };
if (format == FMOD_SOUND_FORMAT_PCMFLOAT)
{
FmtChunk.wFormatTag = 3;
}
struct
{
RiffChunk chunk;
} DataChunk = { {{'d','a','t','a'}, lenbytes } };
struct
{
RiffChunk chunk;
signed char rifftype[4];
} WavHeader = { {{'R','I','F','F'}, sizeof(FmtChunk) + sizeof(RiffChunk) + lenbytes }, {'W','A','V','E'} };
#ifdef __BIG_ENDIAN__
/*
Do some endian swapping
*/
FmtChunk.chunk.size = SWAPENDIAN_DWORD(FmtChunk.chunk.size);
FmtChunk.wFormatTag = SWAPENDIAN_WORD(FmtChunk.wFormatTag);
FmtChunk.nChannels = SWAPENDIAN_WORD(FmtChunk.nChannels);
FmtChunk.nSamplesPerSec = SWAPENDIAN_DWORD(FmtChunk.nSamplesPerSec);
FmtChunk.nAvgBytesPerSec = SWAPENDIAN_DWORD(FmtChunk.nAvgBytesPerSec);
FmtChunk.nBlockAlign = SWAPENDIAN_WORD(FmtChunk.nBlockAlign);
FmtChunk.wBitsPerSample = SWAPENDIAN_WORD(FmtChunk.wBitsPerSample);
DataChunk.chunk.size = SWAPENDIAN_DWORD(DataChunk.chunk.size);
WavHeader.chunk.size = SWAPENDIAN_DWORD(WavHeader.chunk.size);
#endif
fp = fopen("record.wav", "wb");
/*
Write out the WAV header.
*/
fwrite(&WavHeader, sizeof(WavHeader), 1, fp);
fwrite(&FmtChunk, sizeof(FmtChunk), 1, fp);
fwrite(&DataChunk, sizeof(DataChunk), 1, fp);
/*
Lock the sound to get access to the raw data.
*/
FMOD_Sound_Lock(sound, 0, lenbytes, &ptr1, &ptr2, &len1, &len2);
#ifdef __BIG_ENDIAN__
/*
Write it to disk.
*/
if (format == FMOD_SOUND_FORMAT_PCM16)
{
signed short *wptr = (signed short *)ptr1;
for (count = 0; count < len1 >> 1; count++)
{
wptr[count] = SWAPENDIAN_WORD(wptr[count]);
}
}
else if (format == FMOD_SOUND_FORMAT_PCMFLOAT)
{
float *fptr = (float *)ptr1;
for (count = 0; count < len1 >> 2; count++)
{
SWAPENDIAN_FLOAT(fptr[count]);
}
}
#endif
fwrite(ptr1, len1, 1, fp);
/*
Unlock the sound to allow FMOD to use it again.
*/
FMOD_Sound_Unlock(sound, ptr1, ptr2, len1, len2);
fclose(fp);
}
}
