static void pulse_stop_capture(ALCdevice *device)
{
pulse_data *data = device->ExtraData;
pa_operation *o;
o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
wait_for_operation(o, data->loop);
}
/** Issue special libao controls on the device */
static int control(int cmd, void *arg) {
if (!context || !stream)
return CONTROL_ERROR;
switch (cmd) {
case AOCONTROL_SET_DEVICE:
/* Change the playback device */
sink = (char*)arg;
return CONTROL_OK;
case AOCONTROL_GET_DEVICE:
/* Return the playback device */
*(char**)arg = sink;
return CONTROL_OK;
case AOCONTROL_GET_VOLUME: {
/* Return the current volume of the playback stream */
ao_control_vol_t *vol = (ao_control_vol_t*) arg;
volume = PA_VOLUME_NORM;
wait_for_operation(pa_context_get_sink_input_info(context, pa_stream_get_index(stream), info_func, NULL));
vol->left = vol->right = (int) (pa_volume_to_user(volume)*100);
return CONTROL_OK;
}
case AOCONTROL_SET_VOLUME: {
/* Set the playback volume of the stream */
const ao_control_vol_t *vol = (ao_control_vol_t*) arg;
int v = vol->left;
if (vol->right > v)
v = vol->left;
wait_for_operation(pa_context_set_sink_input_volume(context, pa_stream_get_index(stream), pa_volume_from_user((double)v/100), NULL, NULL));
return CONTROL_OK;
}
default:
/* Unknown CONTROL command */
return CONTROL_UNKNOWN;
}
}
/** Play the specified data to the polypaudio server */
static int play(void* data, int len, int flags) {
assert(stream && context);
if (pa_stream_get_state(stream) != PA_STREAM_READY)
return -1;
if (!len)
wait_for_operation(pa_stream_trigger(stream, NULL, NULL));
else
pa_stream_write(stream, data, len, NULL, 0);
wait_for_completion();
if (pa_stream_get_state(stream) != PA_STREAM_READY)
return -1;
return len;
}
/** Destroy libao driver */
static void uninit(int immed) {
if (stream) {
if (!immed && pa_stream_get_state(stream) == PA_STREAM_READY)
wait_for_operation(pa_stream_drain(stream, NULL, NULL));
pa_stream_unref(stream);
stream = NULL;
}
if (context) {
pa_context_unref(context);
context = NULL;
}
if (mainloop) {
pa_mainloop_free(mainloop);
mainloop = NULL;
}
}
static void pulse_stop_playback(ALCdevice *device)
{
pulse_data *data = device->ExtraData;
pa_operation *o;
if(!data->stream)
return;
data->killNow = AL_TRUE;
if(data->thread)
{
StopThread(data->thread);
data->thread = NULL;
}
data->killNow = AL_FALSE;
pa_threaded_mainloop_lock(data->loop);
o = pa_stream_cork(data->stream, 1, stream_success_callback, device);
wait_for_operation(o, data->loop);
pa_threaded_mainloop_unlock(data->loop);
}
/** Reset the audio stream, i.e. flush the playback buffer on the server side */
static void reset(void) {
assert(stream && context && pa_stream_get_state(stream) == PA_STREAM_READY);
wait_for_operation(pa_stream_flush(stream, NULL, NULL));
}
/** Resume the audio stream by uncorking it on the server */
static void audio_resume(void) {
assert(stream && context && pa_stream_get_state(stream) == PA_STREAM_READY);
wait_for_operation(pa_stream_cork(stream, 0, NULL, NULL));
}
/* OpenAL */
static ALCenum pulse_open_playback(ALCdevice *device, const ALCchar *device_name)
{
const char *pulse_name = NULL;
pa_stream_flags_t flags;
pa_sample_spec spec;
pulse_data *data;
pa_operation *o;
if(device_name)
{
ALuint i;
if(!allDevNameMap)
probe_devices(AL_FALSE);
for(i = 0; i < numDevNames; i++)
{
if(strcmp(device_name, allDevNameMap[i].name) == 0)
{
pulse_name = allDevNameMap[i].device_name;
break;
}
}
if(i == numDevNames)
return ALC_INVALID_VALUE;
}
if(pulse_open(device) == ALC_FALSE)
return ALC_INVALID_VALUE;
data = device->ExtraData;
pa_threaded_mainloop_lock(data->loop);
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS;
if(!GetConfigValueBool("pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
data->stream = connect_playback_stream(pulse_name, data->loop, data->context,
flags, NULL, &spec, NULL);
if(!data->stream)
{
pa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
return ALC_INVALID_VALUE;
}
data->device_name = strdup(pa_stream_get_device_name(data->stream));
o = pa_context_get_sink_info_by_name(data->context, data->device_name,
sink_name_callback, device);
wait_for_operation(o, data->loop);
pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
pa_threaded_mainloop_unlock(data->loop);
return ALC_NO_ERROR;
}
static void probe_devices(ALboolean capture)
{
pa_threaded_mainloop *loop;
if(capture == AL_FALSE)
allDevNameMap = malloc(sizeof(DevMap) * 1);
else
allCaptureDevNameMap = malloc(sizeof(DevMap) * 1);
if((loop=pa_threaded_mainloop_new()) &&
pa_threaded_mainloop_start(loop) >= 0)
{
pa_context *context;
pa_threaded_mainloop_lock(loop);
context = connect_context(loop, AL_FALSE);
if(context)
{
pa_operation *o;
if(capture == AL_FALSE)
{
pa_stream_flags_t flags;
pa_sample_spec spec;
pa_stream *stream;
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
stream = connect_playback_stream(NULL, loop, context, flags,
NULL, &spec, NULL);
if(stream)
{
o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream), sink_device_callback, loop);
wait_for_operation(o, loop);
pa_stream_disconnect(stream);
pa_stream_unref(stream);
stream = NULL;
}
o = pa_context_get_sink_info_list(context, sink_device_callback, loop);
}
else
{
pa_stream_flags_t flags;
pa_sample_spec spec;
pa_stream *stream;
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 1;
stream = connect_record_stream(NULL, loop, context, flags,
NULL, &spec, NULL);
if(stream)
{
o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream), source_device_callback, loop);
wait_for_operation(o, loop);
pa_stream_disconnect(stream);
pa_stream_unref(stream);
stream = NULL;
}
o = pa_context_get_source_info_list(context, source_device_callback, loop);
}
wait_for_operation(o, loop);
pa_context_disconnect(context);
pa_context_unref(context);
}
pa_threaded_mainloop_unlock(loop);
pa_threaded_mainloop_stop(loop);
}
if(loop)
pa_threaded_mainloop_free(loop);
}
static ALCenum pulse_open_capture(ALCdevice *device, const ALCchar *device_name)
{
const char *pulse_name = NULL;
pa_stream_flags_t flags = 0;
pa_channel_map chanmap;
pulse_data *data;
pa_operation *o;
ALuint samples;
if(device_name)
{
ALuint i;
if(!allCaptureDevNameMap)
probe_devices(AL_TRUE);
for(i = 0; i < numCaptureDevNames; i++)
{
if(strcmp(device_name, allCaptureDevNameMap[i].name) == 0)
{
pulse_name = allCaptureDevNameMap[i].device_name;
break;
}
}
if(i == numCaptureDevNames)
return ALC_INVALID_VALUE;
}
if(pulse_open(device) == ALC_FALSE)
return ALC_INVALID_VALUE;
data = device->ExtraData;
pa_threaded_mainloop_lock(data->loop);
data->spec.rate = device->Frequency;
data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
switch(device->FmtType)
{
case DevFmtUByte:
data->spec.format = PA_SAMPLE_U8;
break;
case DevFmtShort:
data->spec.format = PA_SAMPLE_S16NE;
break;
case DevFmtInt:
data->spec.format = PA_SAMPLE_S32NE;
break;
case DevFmtFloat:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
case DevFmtByte:
case DevFmtUShort:
case DevFmtUInt:
ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
pa_threaded_mainloop_unlock(data->loop);
goto fail;
}
if(pa_sample_spec_valid(&data->spec) == 0)
{
ERR("Invalid sample format\n");
pa_threaded_mainloop_unlock(data->loop);
goto fail;
}
if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
{
ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
pa_threaded_mainloop_unlock(data->loop);
goto fail;
}
samples = device->UpdateSize * device->NumUpdates;
samples = maxu(samples, 100 * device->Frequency / 1000);
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.maxlength = samples * pa_frame_size(&data->spec);
data->attr.tlength = -1;
data->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
pa_frame_size(&data->spec);
flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
if(!GetConfigValueBool("pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
data->stream = connect_record_stream(pulse_name, data->loop, data->context,
flags, &data->attr, &data->spec,
&chanmap);
if(!data->stream)
{
pa_threaded_mainloop_unlock(data->loop);
goto fail;
}
pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
data->device_name = strdup(pa_stream_get_device_name(data->stream));
o = pa_context_get_source_info_by_name(data->context, data->device_name,
source_name_callback, device);
wait_for_operation(o, data->loop);
pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
pa_threaded_mainloop_unlock(data->loop);
return ALC_NO_ERROR;
fail:
pulse_close(device);
return ALC_INVALID_VALUE;
}
static ALCboolean pulse_reset_playback(ALCdevice *device)
{
pulse_data *data = device->ExtraData;
pa_stream_flags_t flags = 0;
pa_channel_map chanmap;
ALuint len;
pa_threaded_mainloop_lock(data->loop);
if(data->stream)
{
pa_stream_set_moved_callback(data->stream, NULL, NULL);
#if PA_CHECK_VERSION(0,9,15)
if(pa_stream_set_buffer_attr_callback)
pa_stream_set_buffer_attr_callback(data->stream, NULL, NULL);
#endif
pa_stream_disconnect(data->stream);
pa_stream_unref(data->stream);
data->stream = NULL;
}
if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
{
pa_operation *o;
o = pa_context_get_sink_info_by_name(data->context, data->device_name, sink_info_callback, device);
wait_for_operation(o, data->loop);
}
if(!(device->Flags&DEVICE_FREQUENCY_REQUEST))
flags |= PA_STREAM_FIX_RATE;
flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
flags |= PA_STREAM_ADJUST_LATENCY;
flags |= PA_STREAM_START_CORKED;
if(!GetConfigValueBool("pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
switch(device->FmtType)
{
case DevFmtByte:
device->FmtType = DevFmtUByte;
/* fall-through */
case DevFmtUByte:
data->spec.format = PA_SAMPLE_U8;
break;
case DevFmtUShort:
device->FmtType = DevFmtShort;
/* fall-through */
case DevFmtShort:
data->spec.format = PA_SAMPLE_S16NE;
break;
case DevFmtUInt:
device->FmtType = DevFmtInt;
/* fall-through */
case DevFmtInt:
data->spec.format = PA_SAMPLE_S32NE;
break;
case DevFmtFloat:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
}
data->spec.rate = device->Frequency;
data->spec.channels = ChannelsFromDevFmt(device->FmtChans);
if(pa_sample_spec_valid(&data->spec) == 0)
{
ERR("Invalid sample format\n");
pa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
if(!pa_channel_map_init_auto(&chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX))
{
ERR("Couldn't build map for channel count (%d)!\n", data->spec.channels);
pa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
SetDefaultWFXChannelOrder(device);
data->attr.fragsize = -1;
data->attr.prebuf = 0;
data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
data->attr.tlength = data->attr.minreq * maxu(device->NumUpdates, 2);
data->attr.maxlength = -1;
data->stream = connect_playback_stream(data->device_name, data->loop,
data->context, flags, &data->attr,
&data->spec, &chanmap);
if(!data->stream)
{
pa_threaded_mainloop_unlock(data->loop);
return ALC_FALSE;
}
pa_stream_set_state_callback(data->stream, stream_state_callback2, device);
data->spec = *(pa_stream_get_sample_spec(data->stream));
if(device->Frequency != data->spec.rate)
{
pa_operation *o;
/* Server updated our playback rate, so modify the buffer attribs
* accordingly. */
device->NumUpdates = (ALuint)((ALdouble)device->NumUpdates / device->Frequency *
data->spec.rate + 0.5);
data->attr.minreq = device->UpdateSize * pa_frame_size(&data->spec);
data->attr.tlength = data->attr.minreq * clampu(device->NumUpdates, 2, 16);
data->attr.maxlength = -1;
data->attr.prebuf = 0;
o = pa_stream_set_buffer_attr(data->stream, &data->attr,
stream_success_callback, device);
wait_for_operation(o, data->loop);
device->Frequency = data->spec.rate;
}
pa_stream_set_moved_callback(data->stream, stream_moved_callback, device);
#if PA_CHECK_VERSION(0,9,15)
if(pa_stream_set_buffer_attr_callback)
pa_stream_set_buffer_attr_callback(data->stream, stream_buffer_attr_callback, device);
#endif
stream_buffer_attr_callback(data->stream, device);
len = data->attr.minreq / pa_frame_size(&data->spec);
if((CPUCapFlags&CPU_CAP_SSE))
len = (len+3)&~3;
device->NumUpdates = (ALuint)((ALdouble)device->NumUpdates/len*device->UpdateSize + 0.5);
device->NumUpdates = clampu(device->NumUpdates, 2, 16);
device->UpdateSize = len;
pa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
}
