static int oss_play (ao_instance_t * _instance, int flags, sample_t * _samples)
{
oss_instance_t * instance = (oss_instance_t *) _instance;
int16_t int16_samples[256*6];
int chans = -1;
#ifdef LIBDCA_DOUBLE
convert_t samples[256 * 6];
int i;
for (i = 0; i < 256 * 6; i++)
samples[i] = _samples[i];
#else
convert_t * samples = _samples;
#endif
chans = channels_multi (flags);
flags &= DCA_CHANNEL_MASK | DCA_LFE;
if (instance->set_params) {
int tmp;
tmp = chans;
if ((ioctl (instance->fd, SNDCTL_DSP_CHANNELS, &tmp) < 0) ||
(tmp != chans)) {
fprintf (stderr, "Can not set number of channels (%i)\n", chans);
return 1;
}
tmp = instance->sample_rate;
if ((ioctl (instance->fd, SNDCTL_DSP_SPEED, &tmp) < 0) ||
(tmp != instance->sample_rate)) {
fprintf (stderr, "Can not set sample rate (%i)\n",
instance->sample_rate);
return 1;
}
instance->flags = flags;
instance->set_params = 0;
} else if ((flags == DCA_DOLBY) && (instance->flags == DCA_STEREO)) {
fprintf (stderr, "Switching from stereo to dolby surround\n");
instance->flags = DCA_DOLBY;
} else if ((flags == DCA_STEREO) && (instance->flags == DCA_DOLBY)) {
fprintf (stderr, "Switching from dolby surround to stereo\n");
instance->flags = DCA_STEREO;
} else if (flags != instance->flags)
return 1;
convert2s16_multi (samples, int16_samples, flags);
write (instance->fd, int16_samples, 256 * sizeof (int16_t) * chans);
return 0;
}
static int al_play (ao_instance_t * _instance, int flags, sample_t * _samples)
{
al_instance_t * instance = (al_instance_t *) _instance;
int16_t int16_samples[256*6];
int chans = -1;
#ifdef LIBDTS_DOUBLE
convert_t samples[256 * 6];
int i;
for (i = 0; i < 256 * 6; i++)
samples[i] = _samples[i];
#else
convert_t * samples = _samples;
#endif
chans = channels_multi (flags);
flags &= DTS_CHANNEL_MASK | DTS_LFE;
if (instance->set_params) {
ALconfig config;
ALpv params[2];
config = alNewConfig ();
if (!config) {
fprintf (stderr, "alNewConfig failed\n");
return 1;
}
if (alSetChannels (config, chans)) {
fprintf (stderr, "alSetChannels failed\n");
return 1;
}
if (alSetConfig (instance->port, config)) {
fprintf (stderr, "alSetConfig failed\n");
return 1;
}
alFreeConfig (config);
params[0].param = AL_MASTER_CLOCK;
params[0].value.i = AL_CRYSTAL_MCLK_TYPE;
params[1].param = AL_RATE;
params[1].value.ll = alIntToFixed (instance->sample_rate);
if (alSetParams (alGetResource (instance->port), params, 2) < 0) {
fprintf (stderr, "alSetParams failed\n");
return 1;
}
instance->flags = flags;
instance->set_params = 0;
} else if ((flags == DTS_DOLBY) && (instance->flags == DTS_STEREO)) {
fprintf (stderr, "Switching from stereo to dolby surround\n");
instance->flags = DTS_DOLBY;
} else if ((flags == DTS_STEREO) && (instance->flags == DTS_DOLBY)) {
fprintf (stderr, "Switching from dolby surround to stereo\n");
instance->flags = DTS_STEREO;
} else if (flags != instance->flags)
return 1;
convert2s16_multi (samples, int16_samples, flags);
alWriteFrames (instance->port, int16_samples, 256);
return 0;
}
