ardour/livetrax
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DummyAudioBackend: NOOP, white-space, clarify variable name & casts

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This commit is contained in:
Robin Gareus 2014-04-29 03:13:40 +02:00
parent 38125d60c9
commit 19e0383c3b
2 changed files with 13 additions and 13 deletions
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16
libs/backends/dummy/dummy_audiobackend.cc
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@ -34,7 +34,7 @@ DummyAudioBackend::DummyAudioBackend (AudioEngine& e)
, _running (false)
, _freewheeling (false)
, _samplerate (48000)
, _audio_buffersize (1024)
, _samples_per_period (1024)
, _dsp_load (0)
, _n_inputs (0)
, _n_outputs (0)
@ -151,7 +151,7 @@ DummyAudioBackend::set_buffer_size (uint32_t bs)
if (bs <= 0 || bs >= _max_buffer_size) {
return -1;
}
_audio_buffersize = bs;
_samples_per_period = bs;
engine.buffer_size_change (bs);
return 0;
}
@ -207,7 +207,7 @@ DummyAudioBackend::sample_rate () const
uint32_t
DummyAudioBackend::buffer_size () const
{
return _audio_buffersize;
return _samples_per_period;
}
bool
@ -707,7 +707,7 @@ DummyAudioBackend::midi_event_get (
uint32_t event_index)
{
assert (buf && port_buffer);
DummyMidiBuffer& source = * (DummyMidiBuffer*)port_buffer;
DummyMidiBuffer& source = * static_cast<DummyMidiBuffer*>(port_buffer);
if (event_index >= source.size ()) {
return -1;
}
@ -726,7 +726,7 @@ DummyAudioBackend::midi_event_put (
const uint8_t* buffer, size_t size)
{
assert (buffer && port_buffer);
DummyMidiBuffer& dst = * (DummyMidiBuffer*)port_buffer;
DummyMidiBuffer& dst = * static_cast<DummyMidiBuffer*>(port_buffer);
if (dst.size () && (pframes_t)dst.back ()->timestamp () > timestamp) {
fprintf (stderr, "DummyMidiBuffer: it's too late for this event.\n");
return -1;
@ -898,14 +898,14 @@ DummyAudioBackend::main_process_thread ()
struct timeval clock1, clock2;
::gettimeofday (&clock1, NULL);
while (_running) {
if (engine.process_callback (_audio_buffersize)) {
if (engine.process_callback (_samples_per_period)) {
return 0;
}
_processed_samples += _audio_buffersize;
_processed_samples += _samples_per_period;
if (!_freewheeling) {
::gettimeofday (&clock2, NULL);
const int elapsed_time = (clock2.tv_sec - clock1.tv_sec) * 1000000 + (clock2.tv_usec - clock1.tv_usec);
const int nomial_time = 1000000 * _audio_buffersize / _samplerate;
const int nomial_time = 1000000 * _samples_per_period / _samplerate;
_dsp_load = elapsed_time / (float) nomial_time;
if (elapsed_time < nomial_time) {
::usleep (nomial_time - elapsed_time);

2
libs/backends/dummy/dummy_audiobackend.h
View File

@ -275,7 +275,7 @@ class DummyAudioBackend : public AudioBackend {
bool _freewheeling;
float _samplerate;
size_t _audio_buffersize;
size_t _samples_per_period;
float _dsp_load;
static size_t _max_buffer_size;