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Rate control for Pulse and Jack.

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This commit is contained in:
Themaister 2012-02-20 18:39:50 +01:00
parent 0b9ee6055f
commit c833a71d2c
2 changed files with 41 additions and 3 deletions
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19
audio/jack.c
View File

@ -41,6 +41,7 @@ typedef struct jack
pthread_cond_t cond;
pthread_mutex_t cond_lock;
size_t buffer_size;
} jack_t;
static int process_cb(jack_nframes_t nframes, void *data)
@ -163,6 +164,8 @@ static void *ja_init(const char *device, unsigned rate, unsigned latency)
}
bufsize = find_buffersize(jd, latency);
jd->buffer_size = bufsize;
SSNES_LOG("JACK: Internal buffer size: %d frames.\n", (int)(bufsize / sizeof(jack_default_audio_sample_t)));
for (int i = 0; i < 2; i++)
{
@ -304,6 +307,18 @@ static bool ja_use_float(void *data)
return true;
}
static size_t ja_write_avail(void *data)
{
jack_t *jd = (jack_t*)data;
return jack_ringbuffer_write_space(jd->buffer[0]);
}
static size_t ja_buffer_size(void *data)
{
jack_t *jd = (jack_t*)data;
return jd->buffer_size;
}
const audio_driver_t audio_jack = {
ja_init,
ja_write,
@ -312,6 +327,8 @@ const audio_driver_t audio_jack = {
ja_set_nonblock_state,
ja_free,
ja_use_float,
"jack"
"jack",
ja_write_avail,
ja_buffer_size,
};

25
audio/pulse.c
View File

@ -30,6 +30,7 @@ typedef struct
pa_context *context;
pa_stream *stream;
bool nonblock;
size_t buffer_size;
} pa_t;
static void pulse_free(void *data)
@ -153,6 +154,8 @@ static void *pulse_init(const char *device, unsigned rate, unsigned latency)
buffer_attr.minreq = -1;
buffer_attr.fragsize = -1;
pa->buffer_size = buffer_attr.tlength;
if (pa_stream_connect_playback(pa->stream, NULL, &buffer_attr, PA_STREAM_ADJUST_LATENCY, NULL, NULL) < 0)
goto error;
@ -177,8 +180,9 @@ static ssize_t pulse_write(void *data, const void *buf, size_t size)
pa_t *pa = (pa_t*)data;
pa_threaded_mainloop_lock(pa->mainloop);
unsigned length = pa_stream_writable_size(pa->stream);
size_t length = pa_stream_writable_size(pa->stream);
pa_threaded_mainloop_unlock(pa->mainloop);
while (length < size)
{
pa_threaded_mainloop_wait(pa->mainloop);
@ -222,6 +226,21 @@ static bool pulse_use_float(void *data)
return true;
}
static size_t pulse_write_avail(void *data)
{
pa_t *pa = (pa_t*)data;
pa_threaded_mainloop_lock(pa->mainloop);
size_t length = pa_stream_writable_size(pa->stream);
pa_threaded_mainloop_unlock(pa->mainloop);
return length;
}
static size_t pulse_buffer_size(void *data)
{
pa_t *pa = (pa_t*)data;
return pa->buffer_size;
}
const audio_driver_t audio_pulse = {
pulse_init,
pulse_write,
@ -230,6 +249,8 @@ const audio_driver_t audio_pulse = {
pulse_set_nonblock_state,
pulse_free,
pulse_use_float,
"pulse"
"pulse",
pulse_write_avail,
pulse_buffer_size,
};