int main(int argc, char **argv)
{
StreamPlayer *player;
int i;
/* Print out usage if no file was specified */
if(argc < 2)
{
fprintf(stderr, "Usage: %s <filenames...>\n", argv[0]);
return 1;
}
if(InitAL() != 0)
return 1;
if(alIsExtensionPresent("AL_SOFT_buffer_samples"))
{
printf("AL_SOFT_buffer_samples supported!\n");
alBufferSamplesSOFT = alGetProcAddress("alBufferSamplesSOFT");
alIsBufferFormatSupportedSOFT = alGetProcAddress("alIsBufferFormatSupportedSOFT");
}
else
printf("AL_SOFT_buffer_samples not supported\n");
player = NewPlayer();
/* Play each file listed on the command line */
for(i = 1;i < argc;i++)
{
if(!OpenPlayerFile(player, argv[i]))
continue;
printf("Playing %s (%s, %s, %dhz)\n", argv[i],
TypeName(player->type), ChannelsName(player->channels),
player->rate);
fflush(stdout);
if(!StartPlayer(player))
{
ClosePlayerFile(player);
continue;
}
while(UpdatePlayer(player))
Sleep(10);
/* All done with this file. Close it and go to the next */
ClosePlayerFile(player);
}
printf("Done.\n");
/* All files done. Delete the player, and close OpenAL */
DeletePlayer(player);
player = NULL;
CloseAL();
return 0;
}
int main(int argc, char *argv[])
{
enum WaveType wavetype = WT_Sine;
ALuint source, buffer;
ALint last_pos, num_loops;
ALint max_loops = 4;
ALint srate = -1;
ALint tone_freq = 1000;
ALCint dev_rate;
ALenum state;
int i;
for(i = 1;i < argc;i++)
{
if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "--help") == 0)
{
fprintf(stderr, "OpenAL Tone Generator\n"
"\n"
"Usage: %s <options>\n"
"\n"
"Available options:\n"
" --help/-h This help text\n"
" -t <seconds> Time to play a tone (default 5 seconds)\n"
" --waveform/-w <type> Waveform type: sine (default), square, sawtooth,\n"
" triangle, impulse\n"
" --freq/-f <hz> Tone frequency (default 1000 hz)\n"
" --srate/-s <sample rate> Sampling rate (default output rate)\n",
argv[0]
);
return 1;
}
else if(i+1 < argc && strcmp(argv[i], "-t") == 0)
{
i++;
max_loops = atoi(argv[i]) - 1;
}
else if(i+1 < argc && (strcmp(argv[i], "--waveform") == 0 || strcmp(argv[i], "-w") == 0))
{
i++;
if(strcmp(argv[i], "sine") == 0)
wavetype = WT_Sine;
else if(strcmp(argv[i], "square") == 0)
wavetype = WT_Square;
else if(strcmp(argv[i], "sawtooth") == 0)
wavetype = WT_Sawtooth;
else if(strcmp(argv[i], "triangle") == 0)
wavetype = WT_Triangle;
else if(strcmp(argv[i], "impulse") == 0)
wavetype = WT_Impulse;
else
fprintf(stderr, "Unhandled waveform: %s\n", argv[i]);
}
else if(i+1 < argc && (strcmp(argv[i], "--freq") == 0 || strcmp(argv[i], "-f") == 0))
{
i++;
tone_freq = atoi(argv[i]);
if(tone_freq < 1)
{
fprintf(stderr, "Invalid tone frequency: %s (min: 1hz)\n", argv[i]);
tone_freq = 1;
}
}
else if(i+1 < argc && (strcmp(argv[i], "--srate") == 0 || strcmp(argv[i], "-s") == 0))
{
i++;
srate = atoi(argv[i]);
if(srate < 40)
{
fprintf(stderr, "Invalid sample rate: %s (min: 40hz)\n", argv[i]);
srate = 40;
}
}
}
InitAL();
if(!alIsExtensionPresent("AL_EXT_FLOAT32"))
{
fprintf(stderr, "Required AL_EXT_FLOAT32 extension not supported on this device!\n");
CloseAL();
return 1;
}
{
ALCdevice *device = alcGetContextsDevice(alcGetCurrentContext());
alcGetIntegerv(device, ALC_FREQUENCY, 1, &dev_rate);
assert(alcGetError(device)==ALC_NO_ERROR && "Failed to get device sample rate");
}
if(srate < 0)
srate = dev_rate;
/* Load the sound into a buffer. */
buffer = CreateWave(wavetype, tone_freq, srate);
if(!buffer)
{
CloseAL();
return 1;
}
printf("Playing %dhz %s-wave tone with %dhz sample rate and %dhz output, for %d second%s...\n",
tone_freq, GetWaveTypeName(wavetype), srate, dev_rate, max_loops+1, max_loops?"s":"");
fflush(stdout);
/* Create the source to play the sound with. */
source = 0;
alGenSources(1, &source);
alSourcei(source, AL_BUFFER, buffer);
assert(alGetError()==AL_NO_ERROR && "Failed to setup sound source");
/* Play the sound for a while. */
num_loops = 0;
last_pos = 0;
alSourcei(source, AL_LOOPING, (max_loops > 0) ? AL_TRUE : AL_FALSE);
alSourcePlay(source);
do {
ALint pos;
al_nssleep(10000000);
alGetSourcei(source, AL_SAMPLE_OFFSET, &pos);
alGetSourcei(source, AL_SOURCE_STATE, &state);
if(pos < last_pos && state == AL_PLAYING)
{
++num_loops;
if(num_loops >= max_loops)
alSourcei(source, AL_LOOPING, AL_FALSE);
printf("%d...\n", max_loops - num_loops + 1);
fflush(stdout);
}
last_pos = pos;
} while(alGetError() == AL_NO_ERROR && state == AL_PLAYING);
/* All done. Delete resources, and close OpenAL. */
alDeleteSources(1, &source);
alDeleteBuffers(1, &buffer);
/* Close up OpenAL. */
CloseAL();
return 0;
}
int main(int argc, char **argv)
{
ALCdevice *device;
ALuint source, buffer;
const char *soundname;
const char *hrtfname;
ALCint hrtf_state;
ALCint num_hrtf;
ALdouble angle;
ALenum state;
/* Print out usage if no file was specified */
if(argc < 2 || (strcmp(argv[1], "-hrtf") == 0 && argc < 4))
{
fprintf(stderr, "Usage: %s [-hrtf <name>] <soundfile>\n", argv[0]);
return 1;
}
/* Initialize OpenAL with the default device, and check for HRTF support. */
if(InitAL() != 0)
return 1;
if(strcmp(argv[1], "-hrtf") == 0)
{
hrtfname = argv[2];
soundname = argv[3];
}
else
{
hrtfname = NULL;
soundname = argv[1];
}
device = alcGetContextsDevice(alcGetCurrentContext());
if(!alcIsExtensionPresent(device, "ALC_SOFT_HRTF"))
{
fprintf(stderr, "Error: ALC_SOFT_HRTF not supported\n");
CloseAL();
return 1;
}
/* Define a macro to help load the function pointers. */
#define LOAD_PROC(d, x) ((x) = alcGetProcAddress((d), #x))
LOAD_PROC(device, alcGetStringiSOFT);
LOAD_PROC(device, alcResetDeviceSOFT);
#undef LOAD_PROC
/* Enumerate available HRTFs, and reset the device using one. */
alcGetIntegerv(device, ALC_NUM_HRTF_SPECIFIERS_SOFT, 1, &num_hrtf);
if(!num_hrtf)
printf("No HRTFs found\n");
else
{
ALCint attr[5];
ALCint index = -1;
ALCint i;
printf("Available HRTFs:\n");
for(i = 0; i < num_hrtf; i++)
{
const ALCchar *name = alcGetStringiSOFT(device, ALC_HRTF_SPECIFIER_SOFT, i);
printf(" %d: %s\n", i, name);
/* Check if this is the HRTF the user requested. */
if(hrtfname && strcmp(name, hrtfname) == 0)
index = i;
}
i = 0;
attr[i++] = ALC_HRTF_SOFT;
attr[i++] = ALC_TRUE;
if(index == -1)
{
if(hrtfname)
printf("HRTF \"%s\" not found\n", hrtfname);
printf("Using default HRTF...\n");
}
else
{
printf("Selecting HRTF %d...\n", index);
attr[i++] = ALC_HRTF_ID_SOFT;
attr[i++] = index;
}
attr[i] = 0;
if(!alcResetDeviceSOFT(device, attr))
printf("Failed to reset device: %s\n", alcGetString(device, alcGetError(device)));
}
/* Check if HRTF is enabled, and show which is being used. */
alcGetIntegerv(device, ALC_HRTF_SOFT, 1, &hrtf_state);
if(!hrtf_state)
printf("HRTF not enabled!\n");
else
{
const ALchar *name = alcGetString(device, ALC_HRTF_SPECIFIER_SOFT);
printf("HRTF enabled, using %s\n", name);
}
fflush(stdout);
/* Load the sound into a buffer. */
buffer = LoadSound(soundname);
if(!buffer)
{
CloseAL();
return 1;
}
/* Create the source to play the sound with. */
source = 0;
alGenSources(1, &source);
alSourcei(source, AL_SOURCE_RELATIVE, AL_TRUE);
alSource3f(source, AL_POSITION, 0.0f, 0.0f, -1.0f);
alSourcei(source, AL_BUFFER, buffer);
assert(alGetError()==AL_NO_ERROR && "Failed to setup sound source");
/* Play the sound until it finishes. */
angle = 0.0;
alSourcePlay(source);
do {
al_nssleep(10000000);
/* Rotate the source around the listener by about 1/4 cycle per second.
* Only affects mono sounds.
*/
angle += 0.01 * M_PI * 0.5;
alSource3f(source, AL_POSITION, (ALfloat)sin(angle), 0.0f, -(ALfloat)cos(angle));
alGetSourcei(source, AL_SOURCE_STATE, &state);
} while(alGetError() == AL_NO_ERROR && state == AL_PLAYING);
/* All done. Delete resources, and close OpenAL. */
alDeleteSources(1, &source);
alDeleteBuffers(1, &buffer);
CloseAL();
return 0;
}
int main(int argc, char **argv)
{
ALuint source, buffer;
ALdouble offsets[2];
ALenum state;
/* Print out usage if no arguments were specified */
if(argc < 2)
{
fprintf(stderr, "Usage: %s [-device <name>] <filename>\n", argv[0]);
return 1;
}
/* Initialize OpenAL, and check for source_latency support. */
argv++; argc--;
if(InitAL(&argv, &argc) != 0)
return 1;
if(!alIsExtensionPresent("AL_SOFT_source_latency"))
{
fprintf(stderr, "Error: AL_SOFT_source_latency not supported\n");
CloseAL();
return 1;
}
/* Define a macro to help load the function pointers. */
#define LOAD_PROC(x) ((x) = alGetProcAddress(#x))
LOAD_PROC(alSourcedSOFT);
LOAD_PROC(alSource3dSOFT);
LOAD_PROC(alSourcedvSOFT);
LOAD_PROC(alGetSourcedSOFT);
LOAD_PROC(alGetSource3dSOFT);
LOAD_PROC(alGetSourcedvSOFT);
LOAD_PROC(alSourcei64SOFT);
LOAD_PROC(alSource3i64SOFT);
LOAD_PROC(alSourcei64vSOFT);
LOAD_PROC(alGetSourcei64SOFT);
LOAD_PROC(alGetSource3i64SOFT);
LOAD_PROC(alGetSourcei64vSOFT);
if(alIsExtensionPresent("AL_SOFT_buffer_samples"))
{
LOAD_PROC(alBufferSamplesSOFT);
LOAD_PROC(alIsBufferFormatSupportedSOFT);
}
#undef LOAD_PROC
/* Load the sound into a buffer. */
buffer = LoadSound(argv[0]);
if(!buffer)
{
CloseAL();
return 1;
}
/* Create the source to play the sound with. */
source = 0;
alGenSources(1, &source);
alSourcei(source, AL_BUFFER, buffer);
assert(alGetError()==AL_NO_ERROR && "Failed to setup sound source");
/* Play the sound until it finishes. */
alSourcePlay(source);
do {
al_nssleep(10000000);
alGetSourcei(source, AL_SOURCE_STATE, &state);
/* Get the source offset and latency. AL_SEC_OFFSET_LATENCY_SOFT will
* place the offset (in seconds) in offsets[0], and the time until that
* offset will be heard (in seconds) in offsets[1]. */
alGetSourcedvSOFT(source, AL_SEC_OFFSET_LATENCY_SOFT, offsets);
printf("\rOffset: %f - Latency:%3u ms ", offsets[0], (ALuint)(offsets[1]*1000));
fflush(stdout);
} while(alGetError() == AL_NO_ERROR && state == AL_PLAYING);
printf("\n");
/* All done. Delete resources, and close OpenAL. */
alDeleteSources(1, &source);
alDeleteBuffers(1, &buffer);
CloseAL();
return 0;
}