void alc_pulse_probe(int type) //{{{
{
if(!pulse_load()) return;
if(type == DEVICE_PROBE)
AppendDeviceList(pulse_device);
else if(type == ALL_DEVICE_PROBE)
AppendAllDeviceList(pulse_device);
else if(type == CAPTURE_DEVICE_PROBE)
AppendCaptureDeviceList(pulse_capture_device);
pulse_unload();
} //}}}
ALCboolean alc_pulse_init(BackendFuncs *func_list) //{{{
{
if(!pulse_load())
return ALC_FALSE;
*func_list = pulse_funcs;
pulse_ctx_flags = 0;
if(!GetConfigValueBool("pulse", "spawn-server", 0))
pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
return ALC_TRUE;
} //}}}
void alc_pulse_probe( int type ) //{{{
{
if ( !pulse_load() ) { return; }
if ( type == DEVICE_PROBE )
{
AppendDeviceList( pulse_device );
}
else if ( type == ALL_DEVICE_PROBE )
{
ALuint i;
for ( i = 0; i < numDevNames; ++i )
{
free( allDevNameMap[i].name );
free( allDevNameMap[i].device_name );
}
free( allDevNameMap );
allDevNameMap = NULL;
numDevNames = 0;
probe_devices( AL_FALSE );
for ( i = 0; i < numDevNames; i++ )
{
AppendAllDeviceList( allDevNameMap[i].name );
}
}
else if ( type == CAPTURE_DEVICE_PROBE )
{
ALuint i;
for ( i = 0; i < numCaptureDevNames; ++i )
{
free( allCaptureDevNameMap[i].name );
free( allCaptureDevNameMap[i].device_name );
}
free( allCaptureDevNameMap );
allCaptureDevNameMap = NULL;
numCaptureDevNames = 0;
probe_devices( AL_TRUE );
for ( i = 0; i < numCaptureDevNames; i++ )
{
AppendCaptureDeviceList( allCaptureDevNameMap[i].name );
}
}
} //}}}
// OpenAL {{{
static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
{
if(!device_name)
device_name = pulse_device;
else if(strcmp(device_name, pulse_device) != 0)
return ALC_FALSE;
pulse_load();
if(!pa_handle)
return ALC_FALSE;
if(pulse_open(device, device_name) != ALC_FALSE)
return ALC_TRUE;
pulse_unload();
return ALC_FALSE;
} //}}}
ALCboolean alc_pulse_init(BackendFuncs *func_list)
{
ALCboolean ret = ALC_FALSE;
if(pulse_load())
{
pa_threaded_mainloop *loop;
pulse_ctx_flags = 0;
if(!GetConfigValueBool("pulse", "spawn-server", 0))
pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
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_TRUE);
if(context)
{
*func_list = pulse_funcs;
ret = ALC_TRUE;
/* Some libraries (Phonon, Qt) set some pulseaudio properties
* through environment variables, which causes all streams in
* the process to inherit them. This attempts to filter those
* properties out by setting them to 0-length data. */
prop_filter = pa_proplist_new();
pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);
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);
}
return ret;
}
// OpenAL {{{
static ALCboolean pulse_open_playback(ALCdevice *device, const ALCchar *device_name) //{{{
{
if(!device_name)
device_name = pulse_device;
else if(strcmp(device_name, pulse_device) != 0)
return ALC_FALSE;
if(!pulse_load())
return ALC_FALSE;
if(pulse_open(device, device_name) != ALC_FALSE)
{
ALuint len = GetConfigValueInt("pulse", "buffer-length", 2048);
if(len != 0)
{
device->UpdateSize = len;
device->NumUpdates = 1;
}
return ALC_TRUE;
}
pulse_unload();
return ALC_FALSE;
} //}}}
// OpenAL {{{
static ALCboolean pulse_open_playback( ALCdevice* device, const ALCchar* device_name ) //{{{
{
char* pulse_name = NULL;
pa_sample_spec spec;
pulse_data* data;
ALuint len;
if ( !pulse_load() )
{
return ALC_FALSE;
}
if ( !device_name )
{
device_name = pulse_device;
}
else if ( strcmp( device_name, pulse_device ) != 0 )
{
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_FALSE;
}
}
if ( pulse_open( device, device_name ) == ALC_FALSE )
{
return ALC_FALSE;
}
data = device->ExtraData;
ppa_threaded_mainloop_lock( data->loop );
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
data->device_name = pulse_name;
pa_stream* stream = connect_playback_stream( device, 0, NULL, &spec, NULL );
if ( !stream )
{
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( ppa_stream_is_suspended( stream ) )
{
ppa_stream_disconnect( stream );
ppa_stream_unref( stream );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->device_name = strdup( ppa_stream_get_device_name( stream ) );
ppa_stream_disconnect( stream );
ppa_stream_unref( stream );
ppa_threaded_mainloop_unlock( data->loop );
len = GetConfigValueInt( "pulse", "buffer-length", 2048 );
if ( len != 0 )
{
device->UpdateSize = len;
device->NumUpdates = 1;
}
return ALC_TRUE;
fail:
pulse_close( device );
return ALC_FALSE;
} //}}}
static ALCboolean pulse_open_capture( ALCdevice* device, const ALCchar* device_name ) //{{{
{
char* pulse_name = NULL;
pulse_data* data;
pa_stream_flags_t flags = 0;
pa_stream_state_t state;
pa_channel_map chanmap;
if ( !pulse_load() )
{
return ALC_FALSE;
}
if ( !allCaptureDevNameMap )
{
probe_devices( AL_TRUE );
}
if ( !device_name )
{
device_name = allCaptureDevNameMap[0].name;
}
else
{
ALuint i;
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_FALSE;
}
}
if ( pulse_open( device, device_name ) == ALC_FALSE )
{
return ALC_FALSE;
}
data = device->ExtraData;
ppa_threaded_mainloop_lock( data->loop );
data->samples = device->UpdateSize * device->NumUpdates;
data->frame_size = aluFrameSizeFromFormat( device->Format );
if ( !( data->ring = CreateRingBuffer( data->frame_size, data->samples ) ) )
{
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.maxlength = data->frame_size * data->samples;
data->attr.tlength = -1;
data->attr.fragsize = min( data->frame_size * data->samples,
10 * device->Frequency / 1000 );
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat( device->Format );
switch ( aluBytesFromFormat( device->Format ) )
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT( "Unknown format: 0x%x\n", device->Format );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( ppa_sample_spec_valid( &data->spec ) == 0 )
{
AL_PRINT( "Invalid sample format\n" );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
if ( !ppa_channel_map_init_auto( &chanmap, data->spec.channels, PA_CHANNEL_MAP_WAVEEX ) )
{
AL_PRINT( "Couldn't build map for channel count (%d)!\n", data->spec.channels );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
data->stream = ppa_stream_new( data->context, "Capture Stream", &data->spec, &chanmap );
if ( !data->stream )
{
AL_PRINT( "pa_stream_new() failed: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
ppa_stream_set_state_callback( data->stream, stream_state_callback, data->loop );
flags |= PA_STREAM_START_CORKED | PA_STREAM_ADJUST_LATENCY;
if ( ppa_stream_connect_record( data->stream, pulse_name, &data->attr, flags ) < 0 )
{
AL_PRINT( "Stream did not connect: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_stream_unref( data->stream );
data->stream = NULL;
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
while ( ( state = ppa_stream_get_state( data->stream ) ) != PA_STREAM_READY )
{
if ( !PA_STREAM_IS_GOOD( state ) )
{
AL_PRINT( "Stream did not get ready: %s\n",
ppa_strerror( ppa_context_errno( data->context ) ) );
ppa_stream_unref( data->stream );
data->stream = NULL;
ppa_threaded_mainloop_unlock( data->loop );
goto fail;
}
ppa_threaded_mainloop_wait( data->loop );
}
ppa_stream_set_state_callback( data->stream, stream_state_callback2, device );
ppa_threaded_mainloop_unlock( data->loop );
return ALC_TRUE;
fail:
pulse_close( device );
return ALC_FALSE;
} //}}}
static ALCboolean pulse_open_capture(ALCdevice *device, const ALCchar *device_name) //{{{
{
pulse_data *data;
pa_stream_state_t state;
if(!device_name)
device_name = pulse_capture_device;
else if(strcmp(device_name, pulse_capture_device) != 0)
return ALC_FALSE;
pulse_load();
if(!pa_handle)
return ALC_FALSE;
if(pulse_open(device, device_name) == ALC_FALSE)
{
pulse_unload();
return ALC_FALSE;
}
data = device->ExtraData;
ppa_threaded_mainloop_lock(data->loop);
data->samples = device->UpdateSize * device->NumUpdates;
data->frame_size = aluBytesFromFormat(device->Format) *
aluChannelsFromFormat(device->Format);
if(!(data->ring = CreateRingBuffer(data->frame_size, data->samples)))
{
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
data->attr.minreq = -1;
data->attr.prebuf = -1;
data->attr.maxlength = -1;
data->attr.tlength = -1;
data->attr.fragsize = data->frame_size * data->samples / 2;
data->stream_name = "Capture Stream";
data->spec.rate = device->Frequency;
data->spec.channels = aluChannelsFromFormat(device->Format);
switch(aluBytesFromFormat(device->Format))
{
case 1:
data->spec.format = PA_SAMPLE_U8;
break;
case 2:
data->spec.format = PA_SAMPLE_S16NE;
break;
case 4:
data->spec.format = PA_SAMPLE_FLOAT32NE;
break;
default:
AL_PRINT("Unknown format: 0x%x\n", device->Format);
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
if(ppa_sample_spec_valid(&data->spec) == 0)
{
AL_PRINT("Invalid sample format\n");
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
data->stream = ppa_stream_new(data->context, data->stream_name, &data->spec, NULL);
if(!data->stream)
{
AL_PRINT("pa_stream_new() failed: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_threaded_mainloop_unlock(data->loop);
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
ppa_stream_set_state_callback(data->stream, stream_state_callback, device);
if(ppa_stream_connect_record(data->stream, NULL, &data->attr, PA_STREAM_ADJUST_LATENCY) < 0)
{
AL_PRINT("Stream did not connect: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
ppa_threaded_mainloop_unlock(data->loop);
data->stream = NULL;
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
while((state=ppa_stream_get_state(data->stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
AL_PRINT("Stream did not get ready: %s\n",
ppa_strerror(ppa_context_errno(data->context)));
ppa_stream_unref(data->stream);
ppa_threaded_mainloop_unlock(data->loop);
data->stream = NULL;
pulse_close(device);
pulse_unload();
return ALC_FALSE;
}
ppa_threaded_mainloop_wait(data->loop);
ppa_threaded_mainloop_accept(data->loop);
}
ppa_stream_set_state_callback(data->stream, stream_state_callback2, device);
ppa_threaded_mainloop_unlock(data->loop);
return ALC_TRUE;
} //}}}