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pulse driver: preallocate audio buffers

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This commit is contained in:
derselbst 2018-02-06 10:35:37 +01:00
parent 2f35afe79e
commit 2b1cc566a5
1 changed files with 38 additions and 31 deletions
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69
src/drivers/fluid_pulse.c
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@ -46,6 +46,10 @@ typedef struct {
int buffer_size;
fluid_thread_t *thread;
int cont;
float *left;
float *right;
float *buf;
} fluid_pulse_audio_driver_t;
@ -90,6 +94,9 @@ new_fluid_pulse_audio_driver2(fluid_settings_t* settings,
char *media_role = NULL;
int realtime_prio = 0;
int err;
float *left = NULL,
*right = NULL,
*buf = NULL;
dev = FLUID_NEW(fluid_pulse_audio_driver_t);
if (dev == NULL) {
@ -156,6 +163,29 @@ new_fluid_pulse_audio_driver2(fluid_settings_t* settings,
FLUID_LOG(FLUID_INFO, "Using PulseAudio driver");
if(func != NULL)
{
left = FLUID_ARRAY(float, period_size);
right = FLUID_ARRAY(float, period_size);
if (left == NULL || right == NULL)
{
FLUID_LOG(FLUID_ERR, "Out of memory.");
goto error_recovery;
}
}
buf = FLUID_ARRAY(float, period_size * 2);
if(buf == NULL)
{
FLUID_LOG(FLUID_ERR, "Out of memory.");
goto error_recovery;
}
dev->left = left;
dev->right = right;
dev->buf = buf;
/* Create the audio thread */
dev->thread = new_fluid_thread ("pulse-audio", func ? fluid_pulse_audio_run2 : fluid_pulse_audio_run,
dev, realtime_prio, FALSE);
@ -187,6 +217,10 @@ void delete_fluid_pulse_audio_driver(fluid_audio_driver_t* p)
if (dev->pa_handle)
pa_simple_free(dev->pa_handle);
FLUID_FREE(dev->left);
FLUID_FREE(dev->right);
FLUID_FREE(dev->buf);
FLUID_FREE(dev);
}
@ -195,21 +229,12 @@ static fluid_thread_return_t
fluid_pulse_audio_run(void* d)
{
fluid_pulse_audio_driver_t* dev = (fluid_pulse_audio_driver_t*) d;
float *buf;
float *buf = dev->buf;
int buffer_size;
int err;
buffer_size = dev->buffer_size;
/* FIXME - Probably shouldn't alloc in run() */
buf = FLUID_ARRAY(float, buffer_size * 2);
if (buf == NULL)
{
FLUID_LOG(FLUID_ERR, "Out of memory.");
return FLUID_THREAD_RETURN_VALUE;
}
while (dev->cont)
{
fluid_synth_write_float(dev->data, buffer_size, buf, 0, 2, buf, 1, 2);
@ -222,8 +247,6 @@ fluid_pulse_audio_run(void* d)
}
} /* while (dev->cont) */
FLUID_FREE(buf);
return FLUID_THREAD_RETURN_VALUE;
}
@ -232,7 +255,9 @@ fluid_pulse_audio_run2(void* d)
{
fluid_pulse_audio_driver_t* dev = (fluid_pulse_audio_driver_t*) d;
fluid_synth_t *synth = (fluid_synth_t *)(dev->data);
float *left, *right, *buf;
float *left = dev->left,
*right = dev->right,
*buf = dev->buf;
float* handle[2];
int buffer_size;
int err;
@ -240,20 +265,6 @@ fluid_pulse_audio_run2(void* d)
buffer_size = dev->buffer_size;
/* FIXME - Probably shouldn't alloc in run() */
left = FLUID_ARRAY(float, buffer_size);
right = FLUID_ARRAY(float, buffer_size);
buf = FLUID_ARRAY(float, buffer_size * 2);
if (left == NULL || right == NULL || buf == NULL)
{
FLUID_FREE(left);
FLUID_FREE(right);
FLUID_FREE(buf);
FLUID_LOG(FLUID_ERR, "Out of memory.");
return FLUID_THREAD_RETURN_VALUE;
}
handle[0] = left;
handle[1] = right;
@ -276,10 +287,6 @@ fluid_pulse_audio_run2(void* d)
}
} /* while (dev->cont) */
FLUID_FREE(left);
FLUID_FREE(right);
FLUID_FREE(buf);
return FLUID_THREAD_RETURN_VALUE;
}