#define ArdourFindNext AudioComponentFindNext
#endif
-#include "i18n.h"
+#include "pbd/i18n.h"
using namespace std;
using namespace PBD;
, comp (_comp)
, unit (new CAAudioUnit)
, initialized (false)
- , _current_block_size (0)
+ , _last_nframes (0)
+ , _current_latency (UINT_MAX)
, _requires_fixed_size_buffers (false)
, buffers (0)
+ , variable_inputs (false)
+ , variable_outputs (false)
+ , configured_input_busses (0)
+ , configured_output_busses (0)
+ , bus_inputs (0)
+ , bus_outputs (0)
, input_maxbuf (0)
, input_offset (0)
+ , cb_offsets (0)
, input_buffers (0)
+ , input_map (0)
, frames_processed (0)
, audio_input_cnt (0)
, _parameter_listener (0)
, _parameter_listener_arg (0)
- , last_transport_rolling (false)
+ , transport_frame (0)
+ , transport_speed (0)
, last_transport_speed (0.0)
{
if (!preset_search_path_initialized) {
, comp (other.get_comp())
, unit (new CAAudioUnit)
, initialized (false)
- , _current_block_size (0)
, _last_nframes (0)
+ , _current_latency (UINT_MAX)
, _requires_fixed_size_buffers (false)
, buffers (0)
+ , variable_inputs (false)
+ , variable_outputs (false)
+ , configured_input_busses (0)
+ , configured_output_busses (0)
+ , bus_inputs (0)
+ , bus_outputs (0)
, input_maxbuf (0)
, input_offset (0)
+ , cb_offsets (0)
, input_buffers (0)
+ , input_map (0)
, frames_processed (0)
, _parameter_listener (0)
, _parameter_listener_arg (0)
+ , transport_frame (0)
+ , transport_speed (0)
+ , last_transport_speed (0.0)
{
init ();
unit->Uninitialize ();
}
- if (buffers) {
- free (buffers);
- }
+ free (buffers);
+ free (bus_inputs);
+ free (bus_outputs);
+ free (cb_offsets);
}
void
DEBUG_TRACE (DEBUG::AudioUnits, "count output elements\n");
unit->GetElementCount (kAudioUnitScope_Output, output_elements);
- if (input_elements > 0) {
- /* setup render callback: the plugin calls this to get input data
- */
+ cb_offsets = (framecnt_t*) calloc (input_elements, sizeof(uint32_t));
+ bus_inputs = (uint32_t*) calloc (input_elements, sizeof(uint32_t));
+ bus_outputs = (uint32_t*) calloc (output_elements, sizeof(uint32_t));
- AURenderCallbackStruct renderCallbackInfo;
+ for (size_t i = 0; i < output_elements; ++i) {
+ unit->Reset (kAudioUnitScope_Output, i);
+ AudioStreamBasicDescription fmt;
+ err = unit->GetFormat (kAudioUnitScope_Output, i, fmt);
+ if (err == noErr) {
+ bus_outputs[i] = fmt.mChannelsPerFrame;
+ }
+ CFStringRef name;
+ UInt32 sz = sizeof (CFStringRef);
+ if (AudioUnitGetProperty (unit->AU(), kAudioUnitProperty_ElementName, kAudioUnitScope_Output,
+ i, &name, &sz) == noErr
+ && sz > 0) {
+ _bus_name_out.push_back (CFStringRefToStdString (name));
+ CFRelease(name);
+ } else {
+ _bus_name_out.push_back (string_compose ("Audio-Bus %1", i));
+ }
+ }
+ for (size_t i = 0; i < input_elements; ++i) {
+ unit->Reset (kAudioUnitScope_Input, i);
+ AudioStreamBasicDescription fmt;
+ err = unit->GetFormat (kAudioUnitScope_Input, i, fmt);
+ if (err == noErr) {
+ bus_inputs[i] = fmt.mChannelsPerFrame;
+ }
+ CFStringRef name;
+ UInt32 sz = sizeof (CFStringRef);
+ if (AudioUnitGetProperty (unit->AU(), kAudioUnitProperty_ElementName, kAudioUnitScope_Input,
+ i, &name, &sz) == noErr
+ && sz > 0) {
+ _bus_name_in.push_back (CFStringRefToStdString (name));
+ CFRelease(name);
+ } else {
+ _bus_name_in.push_back (string_compose ("Audio-Bus %1", i));
+ }
+ }
+
+ for (size_t i = 0; i < input_elements; ++i) {
+ /* setup render callback: the plugin calls this to get input data */
+ AURenderCallbackStruct renderCallbackInfo;
renderCallbackInfo.inputProc = _render_callback;
renderCallbackInfo.inputProcRefCon = this;
-
DEBUG_TRACE (DEBUG::AudioUnits, "set render callback in input scope\n");
if ((err = unit->SetProperty (kAudioUnitProperty_SetRenderCallback, kAudioUnitScope_Input,
- 0, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) {
+ i, (void*) &renderCallbackInfo, sizeof(renderCallbackInfo))) != 0) {
error << string_compose (_("cannot install render callback (err = %1)"), err) << endmsg;
throw failed_constructor();
}
const CAAUParameter* param = param_info.GetParamInfo (d.id);
const AudioUnitParameterInfo& info (param->ParamInfo());
- const int len = CFStringGetLength (param->GetName());;
+ const int len = CFStringGetLength (param->GetName());
char local_buffer[len*2];
- Boolean good = CFStringGetCString(param->GetName(),local_buffer,len*2,kCFStringEncodingMacRoman);
+ Boolean good = CFStringGetCString (param->GetName(), local_buffer ,len*2 , kCFStringEncodingUTF8);
if (!good) {
d.label = "???";
} else {
framecnt_t
AUPlugin::signal_latency () const
{
- return unit->Latency() * _session.frame_rate();
+ guint lat = g_atomic_int_get (&_current_latency);;
+ if (lat == UINT_MAX) {
+ lat = unit->Latency() * _session.frame_rate();
+ g_atomic_int_set (&_current_latency, lat);
+ }
+ return lat;
}
void
activate ();
}
- _current_block_size = nframes;
-
return 0;
}
if (audio_input_cnt > 0) {
in.set (DataType::AUDIO, audio_input_cnt);
}
- int32_t audio_in = in.n_audio();
+ const int32_t audio_in = in.n_audio();
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("configure %1 for %2 in %3 out\n", name(), in, out));
if (initialized) {
//if we are already running with the requested i/o config, bail out here
if ( (audio_in==input_channels) && (audio_out==output_channels) ) {
- return 0;
+ return true;
} else {
deactivate ();
}
streamFormat.mFramesPerPacket = 1;
/* apple says that for non-interleaved data, these
- values always refer to a single channel.
- */
+ * values always refer to a single channel.
+ */
streamFormat.mBytesPerPacket = 4;
streamFormat.mBytesPerFrame = 4;
- streamFormat.mChannelsPerFrame = audio_in;
+ configured_input_busses = 0;
+ configured_output_busses = 0;
+ /* reset busses */
+ for (size_t i = 0; i < output_elements; ++i) {
+ unit->Reset (kAudioUnitScope_Output, i);
+ }
+ for (size_t i = 0; i < input_elements; ++i) {
+ unit->Reset (kAudioUnitScope_Input, i);
+ }
+
+ /* now assign the channels to available busses */
+ uint32_t used_in = 0;
+ uint32_t used_out = 0;
- if (set_input_format (streamFormat) != 0) {
- return -1;
+ if (variable_inputs || input_elements == 1) {
+ // we only ever use the first bus
+ if (input_elements > 1) {
+ warning << string_compose (_("AU %1 has multiple input busses and variable port count."), name()) << endmsg;
+ }
+ streamFormat.mChannelsPerFrame = audio_in;
+ if (set_stream_format (kAudioUnitScope_Input, 0, streamFormat) != 0) {
+ return false;
+ }
+ configured_input_busses = 1;
+ used_in = audio_in;
+ } else {
+ configured_input_busses = 0;
+ uint32_t remain = audio_in;
+ for (uint32_t bus = 0; remain > 0 && bus < input_elements; ++bus) {
+ uint32_t cnt = std::min (remain, bus_inputs[bus]);
+ if (cnt == 0) { continue; }
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 configure input bus: %2 chn: %3", name(), bus, cnt));
+
+ streamFormat.mChannelsPerFrame = cnt;
+ if (set_stream_format (kAudioUnitScope_Input, bus, streamFormat) != 0) {
+ return false;
+ }
+ used_in += cnt;
+ ++configured_input_busses;
+ remain -= cnt;
+ }
}
- streamFormat.mChannelsPerFrame = audio_out;
+ if (variable_outputs || output_elements == 1) {
+ if (output_elements > 1) {
+ warning << string_compose (_("AU %1 has multiple output busses and variable port count."), name()) << endmsg;
+ }
- if (set_output_format (streamFormat) != 0) {
- return -1;
+ streamFormat.mChannelsPerFrame = audio_out;
+ if (set_stream_format (kAudioUnitScope_Output, 0, streamFormat) != 0) {
+ return false;
+ }
+ configured_output_busses = 1;
+ used_out = audio_out;
+ } else {
+ uint32_t remain = audio_out;
+ configured_output_busses = 0;
+ for (uint32_t bus = 0; remain > 0 && bus < output_elements; ++bus) {
+ uint32_t cnt = std::min (remain, bus_outputs[bus]);
+ if (cnt == 0) { continue; }
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 configure output bus: %2 chn: %3", name(), bus, cnt));
+ streamFormat.mChannelsPerFrame = cnt;
+ if (set_stream_format (kAudioUnitScope_Output, bus, streamFormat) != 0) {
+ return false;
+ }
+ used_out += cnt;
+ remain -= cnt;
+ ++configured_output_busses;
+ }
}
+ free (buffers);
+ buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) +
+ used_out * sizeof(::AudioBuffer));
+
+ input_channels = used_in;
+ output_channels = used_out;
/* reset plugin info to show currently configured state */
- _info->n_inputs = in;
- _info->n_outputs = out;
+ _info->n_inputs = ChanCount (DataType::AUDIO, used_in) + ChanCount (DataType::MIDI, _has_midi_input ? 1 : 0);
+ _info->n_outputs = ChanCount (DataType::AUDIO, used_out);
if (was_initialized) {
activate ();
}
- return 0;
+ return true;
}
ChanCount
AUPlugin::input_streams() const
{
ChanCount c;
-
-
if (input_channels < 0) {
// force PluginIoReConfigure -- see also commit msg e38eb06
c.set (DataType::AUDIO, 0);
c.set (DataType::AUDIO, input_channels);
c.set (DataType::MIDI, _has_midi_input ? 1 : 0);
}
-
return c;
}
AUPlugin::output_streams() const
{
ChanCount c;
-
if (output_channels < 0) {
// force PluginIoReConfigure - see also commit msg e38eb06
c.set (DataType::AUDIO, 0);
c.set (DataType::AUDIO, output_channels);
c.set (DataType::MIDI, _has_midi_output ? 1 : 0);
}
-
return c;
}
bool
-AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out)
+AUPlugin::can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise)
{
- // Note: We never attempt to multiply-instantiate plugins to meet io configurations.
-
- int32_t audio_in = in.n_audio();
- int32_t audio_out;
- bool found = false;
+ _output_configs.clear ();
+ const int32_t audio_in = in.n_audio();
AUPluginInfoPtr pinfo = boost::dynamic_pointer_cast<AUPluginInfo>(get_info());
/* lets check MIDI first */
- if (in.n_midi() > 0) {
- if (!_has_midi_input) {
- return false;
+ if (in.n_midi() > 0 && !_has_midi_input && !imprecise) {
+ return false;
+ }
+
+ vector<pair<int,int> > io_configs = pinfo->cache.io_configs;
+
+ if (input_elements > 1) {
+ const vector<pair<int,int> >& ioc (pinfo->cache.io_configs);
+ for (vector<pair<int,int> >::const_iterator i = ioc.begin(); i != ioc.end(); ++i) {
+ int32_t possible_in = i->first;
+ int32_t possible_out = i->second;
+ if (possible_in < 1 || possible_out < 1) {
+ continue;
+ }
+ for (uint32_t i = 1; i < input_elements; ++i) {
+ // can't use up-to bus_inputs[]
+ // waves' SC-C6(s) for example fails to configure with only 1 input
+ // on the 2nd bus.
+ io_configs.push_back (pair<int,int> (possible_in + bus_inputs[i], possible_out));
+ }
}
}
- vector<pair<int,int> >& io_configs = pinfo->cache.io_configs;
+ if (output_elements > 1) {
+ const vector<pair<int,int> >& ioc (pinfo->cache.io_configs);
+ for (vector<pair<int,int> >::const_iterator i = ioc.begin(); i != ioc.end(); ++i) {
+ int32_t possible_in = i->first;
+ int32_t possible_out = i->second;
+ if (possible_in < 1 || possible_out < 1) {
+ continue;
+ }
+ for (uint32_t i = 1; i < output_elements; ++i) {
+ int32_t c = bus_outputs[i];
+ for (uint32_t j = 1; j < i; ++j) {
+ c += bus_outputs [j];
+ }
+ io_configs.push_back (pair<int,int> (possible_in, possible_out + c));
+ }
+ }
+ }
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 has %2 IO configurations, looking for %3 in, %4 out\n",
name(), io_configs.size(), in, out));
- //Ardour expects the plugin to tell it the output
- //configuration but AU plugins can have multiple I/O
- //configurations in most cases. so first lets see
- //if there's a configuration that keeps out==in
-
- if (in.n_midi() > 0 && audio_in == 0) {
- audio_out = 2; // prefer stereo version if available.
- } else {
- audio_out = audio_in;
+#if 0
+ printf ("AU I/O Configs %s %d\n", name(), io_configs.size());
+ for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
+ printf ("- I/O %d / %d\n", i->first, i->second);
}
+#endif
+
+ // preferred setting (provided by plugin_insert)
+ const int preferred_out = out.n_audio ();
+ bool found = false;
+ bool exact_match = false;
/* kAudioUnitProperty_SupportedNumChannels
* https://developer.apple.com/library/mac/documentation/MusicAudio/Conceptual/AudioUnitProgrammingGuide/TheAudioUnit/TheAudioUnit.html#//apple_ref/doc/uid/TP40003278-CH12-SW20
int32_t possible_in = i->first;
int32_t possible_out = i->second;
- if ((possible_in == audio_in) && (possible_out == audio_out)) {
+ if ((possible_in == audio_in) && (possible_out == preferred_out)) {
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: %1 in %2 out to match in %3 out %4\n",
- possible_in, possible_out,
- in, out));
+ possible_in, possible_out,
+ in, out));
- out.set (DataType::MIDI, 0);
- out.set (DataType::AUDIO, audio_out);
-
- return 1;
+ // exact match
+ _output_configs.insert (preferred_out);
+ exact_match = true;
+ found = true;
+ break;
}
}
/* now allow potentially "imprecise" matches */
+ int32_t audio_out = -1;
+ float penalty = 9999;
+ int used_possible_in = 0;
+#if defined (__clang__)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wtautological-compare"
+#endif
+
+#define FOUNDCFG(nch) { \
+ float p = fabsf ((float)(nch) - preferred_out); \
+ _output_configs.insert (nch); \
+ if ((nch) > preferred_out) { p *= 1.1; } \
+ if (p < penalty) { \
+ used_possible_in = possible_in; \
+ audio_out = (nch); \
+ penalty = p; \
+ found = true; \
+ variable_inputs = possible_in < 0; \
+ variable_outputs = possible_out < 0; \
+ } \
+}
- audio_out = -1;
+#define ANYTHINGGOES \
+ _output_configs.insert (0);
+
+#define UPTO(nch) { \
+ for (int n = 1; n <= nch; ++n) { \
+ _output_configs.insert (n); \
+ } \
+}
for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
}
if (possible_in == 0) {
-
- /* instrument plugin, always legal but throws away inputs ...
- */
-
+ /* no inputs, generators & instruments */
if (possible_out == -1) {
/* any configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out == -2) {
- /* plugins shouldn't really use (0,-2) but might.
- any configuration possible, provide stereo output
- */
- audio_out = 2;
- found = true;
+ /* invalid, should be (0, -1) */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out < -2) {
- /* explicitly variable number of outputs.
- *
- * We really need to ask the user in this case.
- * stereo will be correct in 99.9% of all cases.
- */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ UPTO (-possible_out);
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in == -1) {
-
/* wildcard for input */
-
if (possible_out == -1) {
- /* out much match in */
- audio_out = audio_in;
- found = true;
+ /* out must match in */
+ FOUNDCFG (audio_in);
} else if (possible_out == -2) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out < -2) {
/* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ FOUNDCFG (max (-possible_out, preferred_out));
+ /* and try min, too, in case the penalty is lower */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ UPTO (-possible_out)
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in == -2) {
-
if (possible_out == -1) {
/* any configuration possible, pick matching */
- audio_out = audio_in;
- found = true;
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out == -2) {
- /* plugins shouldn't really use (-2,-2) but might.
- interpret as (-1,-1).
- */
- audio_out = audio_in;
- found = true;
+ /* invalid. interpret as (-1, -1) */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* invalid, interpret as (<-2, <-2)
+ * variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ UPTO (-possible_out)
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in < -2) {
-
/* explicit variable number of inputs */
-
- if (audio_in > -possible_in) {
- /* request is too large */
+ if (audio_in > -possible_in && imprecise != NULL) {
+ // hide inputs ports
+ imprecise->set (DataType::AUDIO, -possible_in);
}
-
- if (possible_out == -1) {
- /* any output configuration possible, provide stereo out */
- audio_out = 2;
- found = true;
+ if (audio_in > -possible_in && imprecise == NULL) {
+ /* request is too large */
+ } else if (possible_out == -1) {
+ /* any output configuration possible */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out == -2) {
- /* plugins shouldn't really use (<-2,-2) but might.
- interpret as (<-2,-1): any configuration possible, provide stereo output
- */
- audio_out = 2;
- found = true;
+ /* invalid. interpret as (<-2, -1) */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out < -2) {
- /* explicitly variable number of outputs.
- *
- * We really need to ask the user in this case.
- * stereo will be correct in 99.9% of all cases.
- */
- audio_out = 2;
- found = true;
+ /* variable number of outputs up to -N, */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ UPTO (-possible_out)
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
if (possible_in && (possible_in == audio_in)) {
-
/* exact number of inputs ... must match obviously */
-
if (possible_out == -1) {
- /* any output configuration possible, provide stereo output */
- audio_out = 2;
- found = true;
+ /* any output configuration possible */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out == -2) {
- /* plugins shouldn't really use (>0,-2) but might.
- interpret as (>0,-1):
- any output configuration possible, provide stereo output
- */
- audio_out = 2;
- found = true;
+ /* plugins shouldn't really use (>0,-2), interpret as (>0,-1) */
+ FOUNDCFG (preferred_out);
+ ANYTHINGGOES;
} else if (possible_out < -2) {
- /* explicitly variable number of outputs, pick maximum */
- audio_out = -possible_out;
- found = true;
+ /* > 0, < -2 is not specified
+ * interpret as up to -N */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ UPTO (-possible_out)
} else {
/* exact number of outputs */
- audio_out = possible_out;
- found = true;
+ FOUNDCFG (possible_out);
}
}
+ }
+
+ if (!found && imprecise) {
+ /* try harder */
+ for (vector<pair<int,int> >::iterator i = io_configs.begin(); i != io_configs.end(); ++i) {
+ int32_t possible_in = i->first;
+ int32_t possible_out = i->second;
+
+ assert (possible_in > 0); // all other cases will have been matched above
+ assert (possible_out !=0 || possible_in !=0); // already handled above
- if (found) {
- if (possible_in < -2 && audio_in == 0) {
- // input-port count cannot be zero, use as many ports
- // as outputs, but at most abs(possible_in)
- audio_input_cnt = max (1, min (audio_out, -possible_in));
+ imprecise->set (DataType::AUDIO, possible_in);
+ if (possible_out == -1 || possible_out == -2) {
+ FOUNDCFG (2);
+ } else if (possible_out < -2) {
+ /* explicitly variable number of outputs, pick maximum */
+ FOUNDCFG (min (-possible_out, preferred_out));
+ } else {
+ /* exact number of outputs */
+ FOUNDCFG (possible_out);
}
- break;
+ // ideally we'll also find the closest, best matching
+ // input configuration with minimal output penalty...
}
-
}
- if (found) {
- out.set (DataType::MIDI, 0); /// XXX
- out.set (DataType::AUDIO, audio_out);
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
- } else {
+ if (!found) {
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tFAIL: no io configs match %1\n", in));
return false;
}
- return true;
-}
-
-int
-AUPlugin::set_input_format (AudioStreamBasicDescription& fmt)
-{
- return set_stream_format (kAudioUnitScope_Input, input_elements, fmt);
-}
-
-int
-AUPlugin::set_output_format (AudioStreamBasicDescription& fmt)
-{
- if (set_stream_format (kAudioUnitScope_Output, output_elements, fmt) != 0) {
- return -1;
- }
-
- if (buffers) {
- free (buffers);
- buffers = 0;
+ if (exact_match) {
+ out.set (DataType::MIDI, 0); // currently always zero
+ out.set (DataType::AUDIO, preferred_out);
+ } else {
+ if (used_possible_in < -2 && audio_in == 0) {
+ // input-port count cannot be zero, use as many ports
+ // as outputs, but at most abs(possible_in)
+ audio_input_cnt = max (1, min (audio_out, -used_possible_in));
+ }
+ out.set (DataType::MIDI, 0); /// XXX
+ out.set (DataType::AUDIO, audio_out);
}
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("\tCHOSEN: in %1 out %2\n", in, out));
- buffers = (AudioBufferList *) malloc (offsetof(AudioBufferList, mBuffers) +
- fmt.mChannelsPerFrame * sizeof(::AudioBuffer));
-
- return 0;
+#if defined (__clang__)
+# pragma clang diagnostic pop
+#endif
+ return true;
}
int
-AUPlugin::set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription& fmt)
+AUPlugin::set_stream_format (int scope, uint32_t bus, AudioStreamBasicDescription& fmt)
{
OSErr result;
- for (uint32_t i = 0; i < cnt; ++i) {
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set stream format for %1, scope = %2 element %3\n",
- (scope == kAudioUnitScope_Input ? "input" : "output"),
- scope, cnt));
- if ((result = unit->SetFormat (scope, i, fmt)) != 0) {
- error << string_compose (_("AUPlugin: could not set stream format for %1/%2 (err = %3)"),
- (scope == kAudioUnitScope_Input ? "input" : "output"), i, result) << endmsg;
- return -1;
- }
- }
-
- if (scope == kAudioUnitScope_Input) {
- input_channels = fmt.mChannelsPerFrame;
- } else {
- output_channels = fmt.mChannelsPerFrame;
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("set stream format for %1, scope = %2 element %3\n",
+ (scope == kAudioUnitScope_Input ? "input" : "output"),
+ scope, bus));
+ if ((result = unit->SetFormat (scope, bus, fmt)) != 0) {
+ error << string_compose (_("AUPlugin: could not set stream format for %1/%2 (err = %3)"),
+ (scope == kAudioUnitScope_Input ? "input" : "output"), bus, result) << endmsg;
+ return -1;
}
-
return 0;
}
OSStatus
AUPlugin::render_callback(AudioUnitRenderActionFlags*,
const AudioTimeStamp*,
- UInt32,
- UInt32 inNumberFrames,
- AudioBufferList* ioData)
+ UInt32 bus,
+ UInt32 inNumberFrames,
+ AudioBufferList* ioData)
{
/* not much to do with audio - the data is already in the buffers given to us in connect_and_run() */
- // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: render callback, frames %2 bufs %3\n",
- // name(), inNumberFrames, ioData->mNumberBuffers));
+ // DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: render callback, frames %2 bus %3 bufs %4\n",
+ // name(), inNumberFrames, bus, ioData->mNumberBuffers));
if (input_maxbuf == 0) {
+ DEBUG_TRACE (DEBUG::AudioUnits, "AUPlugin: render callback called illegally!");
error << _("AUPlugin: render callback called illegally!") << endmsg;
return kAudioUnitErr_CannotDoInCurrentContext;
}
+
+ assert (bus < input_elements);
+ uint32_t busoff = 0;
+ for (uint32_t i = 0; i < bus; ++i) {
+ busoff += bus_inputs[i];
+ }
+
uint32_t limit = min ((uint32_t) ioData->mNumberBuffers, input_maxbuf);
+ ChanCount bufs_count (DataType::AUDIO, 1);
+ BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
+
+ /* apply bus offsets */
+
for (uint32_t i = 0; i < limit; ++i) {
ioData->mBuffers[i].mNumberChannels = 1;
ioData->mBuffers[i].mDataByteSize = sizeof (Sample) * inNumberFrames;
- /* we don't use the channel mapping because audiounits are
- * never replicated. one plugin instance uses all channels/buffers
- * passed to PluginInsert::connect_and_run()
- */
-
- ioData->mBuffers[i].mData = input_buffers->get_audio (i).data (cb_offset + input_offset);
+ bool valid = false;
+ uint32_t idx = input_map->get (DataType::AUDIO, i + busoff, &valid);
+ if (valid) {
+ ioData->mBuffers[i].mData = input_buffers->get_audio (idx).data (cb_offsets[bus] + input_offset);
+ } else {
+ ioData->mBuffers[i].mData = silent_bufs.get_audio(0).data (cb_offsets[bus] + input_offset);
+ }
}
-
- cb_offset += inNumberFrames;
-
+ cb_offsets[bus] += inNumberFrames;
return noErr;
}
int
-AUPlugin::connect_and_run (BufferSet& bufs, ChanMapping in_map, ChanMapping out_map, pframes_t nframes, framecnt_t offset)
+AUPlugin::connect_and_run (BufferSet& bufs,
+ framepos_t start, framepos_t end, double speed,
+ ChanMapping in_map, ChanMapping out_map,
+ pframes_t nframes, framecnt_t offset)
{
- Plugin::connect_and_run (bufs, in_map, out_map, nframes, offset);
+ Plugin::connect_and_run(bufs, start, end, speed, in_map, out_map, nframes, offset);
+
+ transport_frame = start;
+ transport_speed = speed;
AudioUnitRenderActionFlags flags = 0;
AudioTimeStamp ts;
_last_nframes = nframes;
}
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 in %2 out %3 MIDI %4 bufs %5 (available %6)\n",
+ /* test if we can run in-place; only compare audio buffers */
+ bool inplace = true; // TODO check plugin-insert in-place ?
+ ChanMapping::Mappings inmap (in_map.mappings ());
+ ChanMapping::Mappings outmap (out_map.mappings ());
+ if (outmap[DataType::AUDIO].size () == 0) {
+ inplace = false;
+ }
+ if (inmap[DataType::AUDIO].size() > 0 && inmap != outmap) {
+ inplace = false;
+ }
+
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 in %2 out %3 MIDI %4 bufs %5 (available %6) InBus %7 OutBus %8 Inplace: %9 var-i/o %10 %11\n",
name(), input_channels, output_channels, _has_midi_input,
- bufs.count(), bufs.available()));
+ bufs.count(), bufs.available(),
+ configured_input_busses, configured_output_busses, inplace, variable_inputs, variable_outputs));
/* the apparent number of buffers matches our input configuration, but we know that the bufferset
- has the capacity to handle our outputs.
- */
+ * has the capacity to handle our outputs.
+ */
assert (bufs.available() >= ChanCount (DataType::AUDIO, output_channels));
input_buffers = &bufs;
+ input_map = &in_map;
input_maxbuf = bufs.count().n_audio(); // number of input audio buffers
input_offset = offset;
- cb_offset = 0;
-
- buffers->mNumberBuffers = output_channels;
-
- for (int32_t i = 0; i < output_channels; ++i) {
- buffers->mBuffers[i].mNumberChannels = 1;
- buffers->mBuffers[i].mDataByteSize = nframes * sizeof (Sample);
- /* setting this to 0 indicates to the AU that it can provide buffers here
- * if necessary. if it can process in-place, it will use the buffers provided
- * as input by ::render_callback() above.
- *
- * a non-null values tells the plugin to render into the buffer pointed
- * at by the value.
- */
- buffers->mBuffers[i].mData = 0;
+ for (size_t i = 0; i < input_elements; ++i) {
+ cb_offsets[i] = 0;
}
- if (_has_midi_input) {
+ ChanCount bufs_count (DataType::AUDIO, 1);
+ BufferSet& scratch_bufs = _session.get_scratch_buffers(bufs_count);
+ if (_has_midi_input) {
uint32_t nmidi = bufs.count().n_midi();
-
for (uint32_t i = 0; i < nmidi; ++i) {
-
/* one MIDI port/buffer only */
-
MidiBuffer& m = bufs.get_midi (i);
-
for (MidiBuffer::iterator i = m.begin(); i != m.end(); ++i) {
Evoral::MIDIEvent<framepos_t> ev (*i);
-
if (ev.is_channel_event()) {
const uint8_t* b = ev.buffer();
DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1: MIDI event %2\n", name(), ev));
unit->MIDIEvent (b[0], b[1], b[2], ev.time());
}
-
/* XXX need to handle sysex and other message types */
}
}
}
- /* does this really mean anything ?
- */
-
- ts.mSampleTime = frames_processed;
- ts.mFlags = kAudioTimeStampSampleTimeValid;
+ assert (input_maxbuf < 512);
+ std::bitset<512> used_outputs;
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 render flags=%2 time=%3 nframes=%4 buffers=%5\n",
- name(), flags, frames_processed, nframes, buffers->mNumberBuffers));
+ bool ok = true;
+ uint32_t busoff = 0;
+ uint32_t remain = output_channels;
+ for (uint32_t bus = 0; remain > 0 && bus < configured_output_busses; ++bus) {
+ uint32_t cnt;
+ if (variable_outputs || (output_elements == configured_output_busses && configured_output_busses == 1)) {
+ cnt = output_channels;
+ } else {
+ cnt = std::min (remain, bus_outputs[bus]);
+ }
+ assert (cnt > 0);
+
+ buffers->mNumberBuffers = cnt;
+
+ for (uint32_t i = 0; i < cnt; ++i) {
+ buffers->mBuffers[i].mNumberChannels = 1;
+ buffers->mBuffers[i].mDataByteSize = nframes * sizeof (Sample);
+ /* setting this to 0 indicates to the AU that it can provide buffers here
+ * if necessary. if it can process in-place, it will use the buffers provided
+ * as input by ::render_callback() above.
+ *
+ * a non-null values tells the plugin to render into the buffer pointed
+ * at by the value.
+ */
+ if (inplace) {
+ buffers->mBuffers[i].mData = 0;
+ } else {
+ bool valid = false;
+ uint32_t idx = out_map.get (DataType::AUDIO, i + busoff, &valid);
+ if (valid) {
+ buffers->mBuffers[i].mData = bufs.get_audio (idx).data (offset);
+ } else {
+ buffers->mBuffers[i].mData = scratch_bufs.get_audio(0).data(offset);
+ }
+ }
+ }
- if ((err = unit->Render (&flags, &ts, 0, nframes, buffers)) == noErr) {
+ /* does this really mean anything ? */
+ ts.mSampleTime = frames_processed;
+ ts.mFlags = kAudioTimeStampSampleTimeValid;
- input_maxbuf = 0;
- frames_processed += nframes;
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 render flags=%2 time=%3 nframes=%4 bus=%5 buffers=%6\n",
+ name(), flags, frames_processed, nframes, bus, buffers->mNumberBuffers));
- DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 rendered %2 buffers of %3\n",
- name(), buffers->mNumberBuffers, output_channels));
+ if ((err = unit->Render (&flags, &ts, bus, nframes, buffers)) == noErr) {
- int32_t limit = min ((int32_t) buffers->mNumberBuffers, output_channels);
- int32_t i;
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose ("%1 rendered %2 buffers of %3\n",
+ name(), buffers->mNumberBuffers, output_channels));
- for (i = 0; i < limit; ++i) {
- Sample* expected_buffer_address= bufs.get_audio (i).data (offset);
- if (expected_buffer_address != buffers->mBuffers[i].mData) {
- /* plugin provided its own buffer for output so copy it back to where we want it
- */
- memcpy (expected_buffer_address, buffers->mBuffers[i].mData, nframes * sizeof (Sample));
+ uint32_t limit = std::min ((uint32_t) buffers->mNumberBuffers, cnt);
+ for (uint32_t i = 0; i < limit; ++i) {
+ bool valid = false;
+ uint32_t idx = out_map.get (DataType::AUDIO, i + busoff, &valid);
+ if (!valid) continue;
+ used_outputs.set (i + busoff);
+ Sample* expected_buffer_address = bufs.get_audio (idx).data (offset);
+ if (expected_buffer_address != buffers->mBuffers[i].mData) {
+ /* plugin provided its own buffer for output so copy it back to where we want it */
+ memcpy (expected_buffer_address, buffers->mBuffers[i].mData, nframes * sizeof (Sample));
+ }
}
+ } else {
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose (_("AU: render error for %1, bus %2 status = %3\n"), name(), bus, err));
+ error << string_compose (_("AU: render error for %1, bus %2 status = %3"), name(), bus, err) << endmsg;
+ ok = false;
+ break;
}
- /* now silence any buffers that were passed in but the that the plugin
- * did not fill/touch/use.
- */
+ remain -= cnt;
+ busoff += bus_outputs[bus];
+ }
- for (;i < output_channels; ++i) {
- memset (bufs.get_audio (i).data (offset), 0, nframes * sizeof (Sample));
- }
+ /* now silence any buffers that were passed in but the that the plugin
+ * did not fill/touch/use.
+ *
+ * TODO: optimize, when plugin-insert is processing in-place
+ * unconnected buffers are (also) cleared there.
+ */
+ for (uint32_t i = 0; i < input_maxbuf; ++i) {
+ if (used_outputs.test (i)) { continue; }
+ bool valid = false;
+ uint32_t idx = out_map.get (DataType::AUDIO, i, &valid);
+ if (!valid) continue;
+ memset (bufs.get_audio (idx).data (offset), 0, nframes * sizeof (Sample));
+ }
+
+ input_maxbuf = 0;
+ if (ok) {
+ frames_processed += nframes;
return 0;
}
-
- error << string_compose (_("AU: render error for %1, status = %2"), name(), err) << endmsg;
return -1;
}
return kAudioUnitErr_CannotDoInCurrentContext;
}
- Timecode::BBT_Time bbt;
- TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset);
- tmap.bbt_time (_session.transport_frame() + input_offset, bbt);
+ TempoMetric metric = tmap.metric_at (transport_frame + input_offset);
+ Timecode::BBT_Time bbt = _session.tempo_map().bbt_at_frame (transport_frame + input_offset);
if (outCurrentBeat) {
+ const double ppq_scaling = metric.meter().note_divisor() / 4.0;
float beat;
- beat = metric.meter().divisions_per_bar() * bbt.bars;
- beat += bbt.beats;
+ beat = metric.meter().divisions_per_bar() * (bbt.bars - 1);
+ beat += (bbt.beats - 1);
beat += bbt.ticks / Timecode::BBT_Time::ticks_per_beat;
- *outCurrentBeat = beat;
+ *outCurrentBeat = beat * ppq_scaling;
}
if (outCurrentTempo) {
return kAudioUnitErr_CannotDoInCurrentContext;
}
- Timecode::BBT_Time bbt;
- TempoMetric metric = tmap.metric_at (_session.transport_frame() + input_offset);
- tmap.bbt_time (_session.transport_frame() + input_offset, bbt);
+ TempoMetric metric = tmap.metric_at (transport_frame + input_offset);
+ Timecode::BBT_Time bbt = _session.tempo_map().bbt_at_frame (transport_frame + input_offset);
if (outDeltaSampleOffsetToNextBeat) {
if (bbt.ticks == 0) {
/* on the beat */
*outDeltaSampleOffsetToNextBeat = 0;
} else {
- *outDeltaSampleOffsetToNextBeat = (UInt32)
- floor (((Timecode::BBT_Time::ticks_per_beat - bbt.ticks)/Timecode::BBT_Time::ticks_per_beat) * // fraction of a beat to next beat
- metric.tempo().frames_per_beat (_session.frame_rate())); // frames per beat
+ double const beat_frac_to_next = (Timecode::BBT_Time::ticks_per_beat - bbt.ticks) / Timecode::BBT_Time::ticks_per_beat;
+ *outDeltaSampleOffsetToNextBeat = tmap.frame_at_beat (tmap.beat_at_frame (transport_frame + input_offset) + beat_frac_to_next);
}
}
Float64* outCycleStartBeat,
Float64* outCycleEndBeat)
{
- bool rolling;
- float speed;
+ const bool rolling = (transport_speed != 0);
+ const bool last_transport_rolling = (last_transport_speed != 0);
DEBUG_TRACE (DEBUG::AudioUnits, "AU calls ardour transport state callback\n");
- rolling = _session.transport_rolling();
- speed = _session.transport_speed ();
if (outIsPlaying) {
- *outIsPlaying = _session.transport_rolling();
+ *outIsPlaying = rolling;
}
if (outTransportStateChanged) {
if (rolling != last_transport_rolling) {
*outTransportStateChanged = true;
- } else if (speed != last_transport_speed) {
+ } else if (transport_speed != last_transport_speed) {
*outTransportStateChanged = true;
} else {
*outTransportStateChanged = false;
/* this assumes that the AU can only call this host callback from render context,
where input_offset is valid.
*/
- *outCurrentSampleInTimeLine = _session.transport_frame() + input_offset;
+ *outCurrentSampleInTimeLine = transport_frame + input_offset;
}
if (outIsCycling) {
+ // TODO check bounce-processing
Location* loc = _session.locations()->auto_loop_location();
- *outIsCycling = (loc && _session.transport_rolling() && _session.get_play_loop());
+ *outIsCycling = (loc && rolling && _session.get_play_loop());
if (*outIsCycling) {
if (outCycleStartBeat) {
TempoMetric metric = tmap.metric_at (loc->start() + input_offset);
- _session.tempo_map().bbt_time (loc->start(), bbt);
+ bbt = _session.tempo_map().bbt_at_frame (loc->start() + input_offset);
float beat;
beat = metric.meter().divisions_per_bar() * bbt.bars;
if (outCycleEndBeat) {
TempoMetric metric = tmap.metric_at (loc->end() + input_offset);
- _session.tempo_map().bbt_time (loc->end(), bbt);
+ bbt = _session.tempo_map().bbt_at_frame (loc->end() + input_offset);
float beat;
beat = metric.meter().divisions_per_bar() * bbt.bars;
}
}
- last_transport_rolling = rolling;
- last_transport_speed = speed;
+ last_transport_speed = transport_speed;
return noErr;
}
return automates;
}
+Plugin::IOPortDescription
+AUPlugin::describe_io_port (ARDOUR::DataType dt, bool input, uint32_t id) const
+{
+ std::stringstream ss;
+ switch (dt) {
+ case DataType::AUDIO:
+ break;
+ case DataType::MIDI:
+ ss << _("Midi");
+ break;
+ default:
+ ss << _("?");
+ break;
+ }
+
+ if (dt == DataType::AUDIO) {
+ if (input) {
+ uint32_t pid = id;
+ for (uint32_t bus = 0; bus < input_elements; ++bus) {
+ if (pid < bus_inputs[bus]) {
+ id = pid;
+ ss << _bus_name_in[bus];
+ ss << " / Bus " << (1 + bus);
+ break;
+ }
+ pid -= bus_inputs[bus];
+ }
+ }
+ else {
+ uint32_t pid = id;
+ for (uint32_t bus = 0; bus < output_elements; ++bus) {
+ if (pid < bus_outputs[bus]) {
+ id = pid;
+ ss << _bus_name_out[bus];
+ ss << " / Bus " << (1 + bus);
+ break;
+ }
+ pid -= bus_outputs[bus];
+ }
+ }
+ }
+
+ if (input) {
+ ss << " " << _("In") << " ";
+ } else {
+ ss << " " << _("Out") << " ";
+ }
+
+ ss << (id + 1);
+
+ Plugin::IOPortDescription iod (ss.str());
+ return iod;
+}
+
string
AUPlugin::describe_parameter (Evoral::Parameter param)
{
void
AUPlugin::add_state (XMLNode* root) const
{
- LocaleGuard lg (X_("C"));
+ LocaleGuard lg;
CFDataRef xmlData;
CFPropertyListRef propertyList;
{
int ret = -1;
CFPropertyListRef propertyList;
- LocaleGuard lg (X_("C"));
+ LocaleGuard lg;
if (node.name() != state_node_name()) {
error << _("Bad node sent to AUPlugin::set_state") << endmsg;
}
vector<string> preset_files;
- find_files_matching_filter (preset_files, preset_search_path, au_preset_filter, this, true, true, true);
+ find_files_matching_filter (preset_files, preset_search_path, au_preset_filter, const_cast<AUPluginInfo*>(this), true, true, true);
for (vector<string>::iterator x = preset_files.begin(); x != preset_files.end(); ++x) {
string path = *x;
if (!Glib::file_test (au_cache_path(), Glib::FILE_TEST_EXISTS)) {
ARDOUR::BootMessage (_("Discovering AudioUnit plugins (could take some time ...)"));
+ // flush RAM cache -- after clear_cache()
+ cached_info.clear();
}
// create crash log file
au_start_crashlog ();
continue;
}
+ bool has_midi_in = false;
+
AUPluginInfoPtr info (new AUPluginInfo
(boost::shared_ptr<CAComponentDescription> (new CAComponentDescription(temp))));
break;
case kAudioUnitType_MusicDevice:
info->category = _("AudioUnit Instruments");
+ has_midi_in = true;
break;
case kAudioUnitType_MusicEffect:
info->category = _("AudioUnit MusicEffects");
+ has_midi_in = true;
break;
case kAudioUnitType_Effect:
info->category = _("AudioUnit Effects");
info->type = ARDOUR::AudioUnit;
info->unique_id = stringify_descriptor (*info->descriptor);
- /* XXX not sure of the best way to handle plugin versioning yet
- */
+ /* XXX not sure of the best way to handle plugin versioning yet */
CAComponent cacomp (*info->descriptor);
info->n_inputs.set (DataType::AUDIO, 1);
}
+ info->n_inputs.set (DataType::MIDI, has_midi_in ? 1 : 0);
+
if (possible_out > 0) {
info->n_outputs.set (DataType::AUDIO, possible_out);
} else {
}
if (ret > 0) {
-
- /* no explicit info available, so default to 1in/1out */
-
- /* XXX this is wrong. we should be indicating wildcard values */
-
+ /* AU is expected to deal with same channel valance in and out */
cinfo.io_configs.push_back (pair<int,int> (-1, -1));
-
} else {
-
- /* store each configuration */
-
- for (uint32_t n = 0; n < cnt; ++n) {
- cinfo.io_configs.push_back (pair<int,int> (channel_info[n].inChannels,
- channel_info[n].outChannels));
+ /* CAAudioUnit::GetChannelInfo silently merges bus formats
+ * check if this was the case and if so, add
+ * bus configs as incremental options.
+ */
+ Boolean* isWritable = 0;
+ UInt32 dataSize = 0;
+ OSStatus result = AudioUnitGetPropertyInfo (unit.AU(),
+ kAudioUnitProperty_SupportedNumChannels,
+ kAudioUnitScope_Global, 0,
+ &dataSize, isWritable);
+ if (result != noErr && (comp.Desc().IsGenerator() || comp.Desc().IsMusicDevice())) {
+ /* incrementally add busses */
+ int in = 0;
+ int out = 0;
+ for (uint32_t n = 0; n < cnt; ++n) {
+ in += channel_info[n].inChannels;
+ out += channel_info[n].outChannels;
+ cinfo.io_configs.push_back (pair<int,int> (in, out));
+ }
+ } else {
+ /* store each configuration */
+ for (uint32_t n = 0; n < cnt; ++n) {
+ cinfo.io_configs.push_back (pair<int,int> (channel_info[n].inChannels,
+ channel_info[n].outChannels));
+ }
}
free (channel_info);
return 0;
}
+void
+AUPluginInfo::clear_cache ()
+{
+ const string& fn = au_cache_path();
+ if (Glib::file_test (fn, Glib::FILE_TEST_EXISTS)) {
+ ::g_unlink(fn.c_str());
+ }
+ // keep cached_info in RAM until restart or re-scan
+ cached_info.clear();
+}
+
void
AUPluginInfo::add_cached_info (const std::string& id, AUPluginCachedInfo& cinfo)
{
}
//initial version has incorrectly stored i/o info, and/or garbage chars.
- const XMLProperty* version = root->property(X_("version"));
+ XMLProperty const * version = root->property(X_("version"));
if (! ((version != NULL) && (version->value() == X_(AU_CACHE_VERSION)))) {
error << "au_cache is not correct version. AU plugins will be re-scanned" << endmsg;
return -1;
const XMLNode* gchild;
const XMLNodeList gchildren = child->children();
- const XMLProperty* prop = child->property (X_("id"));
+ XMLProperty const * prop = child->property (X_("id"));
if (!prop) {
continue;
int in;
int out;
- const XMLProperty* iprop;
- const XMLProperty* oprop;
+ XMLProperty const * iprop;
+ XMLProperty const * oprop;
if (((iprop = gchild->property (X_("in"))) != 0) &&
((oprop = gchild->property (X_("out"))) != 0)) {
}
bool
-AUPluginInfo::needs_midi_input ()
+AUPluginInfo::needs_midi_input () const
{
return is_effect_with_midi_input () || is_instrument ();
}
_parameter_listener_arg = arg;
+ // listen for latency changes
+ AudioUnitEvent event;
+ event.mEventType = kAudioUnitEvent_PropertyChange;
+ event.mArgument.mProperty.mAudioUnit = unit->AU();
+ event.mArgument.mProperty.mPropertyID = kAudioUnitProperty_Latency;
+ event.mArgument.mProperty.mScope = kAudioUnitScope_Global;
+ event.mArgument.mProperty.mElement = 0;
+
+ if (AUEventListenerAddEventType (_parameter_listener, _parameter_listener_arg, &event) != noErr) {
+ PBD::error << "Failed to create latency event listener\n";
+ // TODO don't cache _current_latency
+ }
+
return 0;
}
void
AUPlugin::parameter_change_listener (void* /*arg*/, void* src, const AudioUnitEvent* event, UInt64 /*host_time*/, Float32 new_value)
{
+ if (event->mEventType == kAudioUnitEvent_PropertyChange) {
+ if (event->mArgument.mProperty.mPropertyID == kAudioUnitProperty_Latency) {
+ DEBUG_TRACE (DEBUG::AudioUnits, string_compose("AU Latency Change Event %1 <> %2\n", new_value, unit->Latency()));
+ guint lat = unit->Latency() * _session.frame_rate();
+ g_atomic_int_set (&_current_latency, lat);
+ }
+ return;
+ }
+
ParameterMap::iterator i;
if ((i = parameter_map.find (event->mArgument.mParameter.mParameterID)) == parameter_map.end()) {
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