* that someone can read playback_distance worth of data from.
*/
int
-AudioDiskstream::process (framepos_t transport_frame, pframes_t nframes, framecnt_t& playback_distance)
+AudioDiskstream::process (BufferSet& bufs, framepos_t transport_frame, pframes_t nframes, framecnt_t& playback_distance, bool need_disk_signal)
{
uint32_t n;
boost::shared_ptr<ChannelList> c = channels.reader();
assert(ap);
assert(rec_nframes <= (framecnt_t) ap->get_audio_buffer(nframes).capacity());
- Sample *buf = ap->get_audio_buffer (nframes).data (rec_offset);
+ Sample *buf = bufs.get_audio (n).data(rec_offset);
memcpy (chaninfo->current_capture_buffer, buf, sizeof (Sample) * rec_nframes);
-
+
} else {
framecnt_t total = chaninfo->capture_vector.len[0] + chaninfo->capture_vector.len[1];
boost::shared_ptr<AudioPort> const ap = _io->audio (n);
assert(ap);
- Sample* buf = ap->get_audio_buffer(nframes).data (rec_offset);
+ Sample *buf = bufs.get_audio (n).data(rec_offset);
framecnt_t first = chaninfo->capture_vector.len[0];
memcpy (chaninfo->capture_wrap_buffer, buf, sizeof (Sample) * first);
/* no varispeed playback if we're recording, because the output .... TBD */
if (rec_nframes == 0 && _actual_speed != 1.0f) {
- necessary_samples = (framecnt_t) floor ((nframes * fabs (_actual_speed))) + 1;
+ necessary_samples = (framecnt_t) ceil ((nframes * fabs (_actual_speed))) + 2;
} else {
necessary_samples = nframes;
}
as our current_playback_buffer.
*/
+ assert(wrap_buffer_size >= necessary_samples);
+
/* Copy buf[0] from playback_buf */
memcpy ((char *) chaninfo->playback_wrap_buffer,
chaninfo->playback_vector.buf[0],
_speed = _target_speed;
}
+ if (need_disk_signal) {
+
+ /* copy data over to buffer set */
+
+ size_t n_buffers = bufs.count().n_audio();
+ size_t n_chans = c->size();
+ gain_t scaling = 1.0f;
+
+ if (n_chans > n_buffers) {
+ scaling = ((float) n_buffers)/n_chans;
+ }
+
+ for (n = 0, chan = c->begin(); chan != c->end(); ++chan, ++n) {
+
+ AudioBuffer& buf (bufs.get_audio (n%n_buffers));
+ ChannelInfo* chaninfo (*chan);
+
+ if (n < n_chans) {
+ if (scaling != 1.0f) {
+ buf.read_from_with_gain (chaninfo->current_playback_buffer, nframes, scaling);
+ } else {
+ buf.read_from (chaninfo->current_playback_buffer, nframes);
+ }
+ } else {
+ if (scaling != 1.0f) {
+ buf.accumulate_with_gain_from (chaninfo->current_playback_buffer, nframes, scaling);
+ } else {
+ buf.accumulate_from (chaninfo->current_playback_buffer, nframes);
+ }
+ }
+ }
+
+ /* leave the MIDI count alone */
+ ChanCount cnt (DataType::AUDIO, n_chans);
+ cnt.set (DataType::MIDI, bufs.count().n_midi());
+ bufs.set_count (cnt);
+
+ /* extra buffers will already be silent, so leave them alone */
+ }
+
return 0;
}
} else {
disengage_record_enable ();
}
+
+ RecordEnableChanged (); /* EMIT SIGNAL */
}
}
-void
-AudioDiskstream::engage_record_enable ()
+bool
+AudioDiskstream::prep_record_enable ()
{
+ if (!recordable() || !_session.record_enabling_legal() || _io->n_ports().n_audio() == 0) {
+ return false;
+ }
+
+ /* can't rec-enable in destructive mode if transport is before start */
+
+ if (destructive() && _session.transport_frame() < _session.current_start_frame()) {
+ return false;
+ }
+
bool rolling = _session.transport_speed() != 0.0f;
boost::shared_ptr<ChannelList> c = channels.reader();
- g_atomic_int_set (&_record_enabled, 1);
capturing_sources.clear ();
if (Config->get_monitoring_model() == HardwareMonitoring) {
}
}
- RecordEnableChanged (); /* EMIT SIGNAL */
+ return true;
}
-void
-AudioDiskstream::disengage_record_enable ()
+bool
+AudioDiskstream::prep_record_disable ()
{
- g_atomic_int_set (&_record_enabled, 0);
boost::shared_ptr<ChannelList> c = channels.reader();
if (Config->get_monitoring_model() == HardwareMonitoring) {
for (ChannelList::iterator chan = c->begin(); chan != c->end(); ++chan) {
}
}
capturing_sources.clear ();
- RecordEnableChanged (); /* EMIT SIGNAL */
+
+ return true;
}
XMLNode&
*/
double const sp = max (fabsf (_actual_speed), 1.2f);
- framecnt_t required_wrap_size = (framecnt_t) floor (_session.get_block_size() * sp) + 1;
+ framecnt_t required_wrap_size = (framecnt_t) ceil (_session.get_block_size() * sp) + 2;
if (required_wrap_size > wrap_buffer_size) {