2 Copyright (C) 2000-2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
34 #include <pbd/error.h>
35 #include <pbd/basename.h>
36 #include <pbd/lockmonitor.h>
37 #include <pbd/xml++.h>
39 #include <ardour/ardour.h>
40 #include <ardour/audioengine.h>
41 #include <ardour/diskstream.h>
42 #include <ardour/utils.h>
43 #include <ardour/configuration.h>
44 #include <ardour/filesource.h>
45 #include <ardour/destructive_filesource.h>
46 #include <ardour/send.h>
47 #include <ardour/audioplaylist.h>
48 #include <ardour/cycle_timer.h>
49 #include <ardour/audioregion.h>
55 using namespace ARDOUR;
57 jack_nframes_t DiskStream::disk_io_chunk_frames;
59 sigc::signal<void,DiskStream*> DiskStream::DiskStreamCreated;
60 sigc::signal<void,list<Source*>*> DiskStream::DeleteSources;
61 sigc::signal<void> DiskStream::DiskOverrun;
62 sigc::signal<void> DiskStream::DiskUnderrun;
64 DiskStream::DiskStream (Session &sess, const string &name, Flag flag)
68 /* prevent any write sources from being created */
77 DiskStreamCreated (this); /* EMIT SIGNAL */
80 DiskStream::DiskStream (Session& sess, const XMLNode& node)
87 if (set_state (node)) {
89 throw failed_constructor();
95 use_destructive_playlist ();
98 DiskStreamCreated (this); /* EMIT SIGNAL */
102 DiskStream::init_channel (ChannelInfo &chan)
104 chan.playback_wrap_buffer = 0;
105 chan.capture_wrap_buffer = 0;
106 chan.speed_buffer = 0;
107 chan.peak_power = 0.0f;
108 chan.write_source = 0;
110 chan.current_capture_buffer = 0;
111 chan.current_playback_buffer = 0;
112 chan.curr_capture_cnt = 0;
114 chan.playback_buf = new RingBufferNPT<Sample> (_session.diskstream_buffer_size());
115 chan.capture_buf = new RingBufferNPT<Sample> (_session.diskstream_buffer_size());
116 chan.capture_transition_buf = new RingBufferNPT<CaptureTransition> (128);
119 /* touch the ringbuffer buffers, which will cause
120 them to be mapped into locked physical RAM if
121 we're running with mlockall(). this doesn't do
124 memset (chan.playback_buf->buffer(), 0, sizeof (Sample) * chan.playback_buf->bufsize());
125 memset (chan.capture_buf->buffer(), 0, sizeof (Sample) * chan.capture_buf->bufsize());
126 memset (chan.capture_transition_buf->buffer(), 0, sizeof (CaptureTransition) * chan.capture_transition_buf->bufsize());
131 DiskStream::init (Flag f)
137 _alignment_style = ExistingMaterial;
138 _persistent_alignment_style = ExistingMaterial;
139 first_input_change = true;
141 i_am_the_modifier = 0;
142 atomic_set (&_record_enabled, 0);
143 was_recording = false;
144 capture_start_frame = 0;
145 capture_captured = 0;
146 _visible_speed = 1.0f;
147 _actual_speed = 1.0f;
148 _buffer_reallocation_required = false;
149 _seek_required = false;
150 first_recordable_frame = max_frames;
151 last_recordable_frame = max_frames;
156 adjust_capture_position = 0;
157 last_possibly_recording = 0;
159 wrap_buffer_size = 0;
160 speed_buffer_size = 0;
162 phi = (uint64_t) (0x1000000);
165 playback_distance = 0;
166 _read_data_count = 0;
167 _write_data_count = 0;
168 deprecated_io_node = 0;
170 /* there are no channels at this point, so these
171 two calls just get speed_buffer_size and wrap_buffer
172 size setup without duplicating their code.
175 set_block_size (_session.get_block_size());
176 allocate_temporary_buffers ();
178 pending_overwrite = false;
180 overwrite_queued = false;
181 input_change_pending = NoChange;
188 DiskStream::destroy_channel (ChannelInfo &chan)
190 if (chan.write_source) {
191 chan.write_source->release ();
192 chan.write_source = 0;
195 if (chan.speed_buffer) {
196 delete [] chan.speed_buffer;
199 if (chan.playback_wrap_buffer) {
200 delete [] chan.playback_wrap_buffer;
202 if (chan.capture_wrap_buffer) {
203 delete [] chan.capture_wrap_buffer;
206 delete chan.playback_buf;
207 delete chan.capture_buf;
208 delete chan.capture_transition_buf;
210 chan.playback_buf = 0;
211 chan.capture_buf = 0;
214 DiskStream::~DiskStream ()
216 LockMonitor lm (state_lock, __LINE__, __FILE__);
222 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
223 destroy_channel((*chan));
230 DiskStream::handle_input_change (IOChange change, void *src)
232 LockMonitor lm (state_lock, __LINE__, __FILE__);
234 if (!(input_change_pending & change)) {
235 input_change_pending = IOChange (input_change_pending|change);
236 _session.request_input_change_handling ();
241 DiskStream::non_realtime_input_change ()
244 LockMonitor lm (state_lock, __LINE__, __FILE__);
246 if (input_change_pending == NoChange) {
250 if (input_change_pending & ConfigurationChanged) {
252 if (_io->n_inputs() > _n_channels) {
254 // we need to add new channel infos
256 int diff = _io->n_inputs() - channels.size();
258 for (int i = 0; i < diff; ++i) {
262 } else if (_io->n_inputs() < _n_channels) {
264 // we need to get rid of channels
266 int diff = channels.size() - _io->n_inputs();
268 for (int i = 0; i < diff; ++i) {
274 get_input_sources ();
275 set_capture_offset ();
277 if (first_input_change) {
278 set_align_style (_persistent_alignment_style);
279 first_input_change = false;
281 set_align_style_from_io ();
284 input_change_pending = NoChange;
287 /* reset capture files */
289 reset_write_sources (false);
291 /* now refill channel buffers */
293 if (speed() != 1.0f || speed() != -1.0f) {
294 seek ((jack_nframes_t) (_session.transport_frame() * (double) speed()));
297 seek (_session.transport_frame());
302 DiskStream::get_input_sources ()
304 uint32_t ni = _io->n_inputs();
306 for (uint32_t n = 0; n < ni; ++n) {
308 const char **connections = _io->input(n)->get_connections ();
309 ChannelInfo& chan = channels[n];
311 if (connections == 0 || connections[0] == 0) {
314 // _source->disable_metering ();
320 chan.source = _session.engine().get_port_by_name (connections[0]);
330 DiskStream::find_and_use_playlist (const string& name)
333 AudioPlaylist* playlist;
335 if ((pl = _session.get_playlist (name)) == 0) {
336 error << string_compose(_("DiskStream: Session doesn't know about a Playlist called \"%1\""), name) << endmsg;
340 if ((playlist = dynamic_cast<AudioPlaylist*> (pl)) == 0) {
341 error << string_compose(_("DiskStream: Playlist \"%1\" isn't an audio playlist"), name) << endmsg;
345 return use_playlist (playlist);
349 DiskStream::use_playlist (AudioPlaylist* playlist)
352 LockMonitor lm (state_lock, __LINE__, __FILE__);
354 if (playlist == _playlist) {
358 plstate_connection.disconnect();
359 plmod_connection.disconnect ();
360 plgone_connection.disconnect ();
366 _playlist = playlist;
369 if (!in_set_state && recordable()) {
370 reset_write_sources (false);
373 plstate_connection = _playlist->StateChanged.connect (mem_fun (*this, &DiskStream::playlist_changed));
374 plmod_connection = _playlist->Modified.connect (mem_fun (*this, &DiskStream::playlist_modified));
375 plgone_connection = _playlist->GoingAway.connect (mem_fun (*this, &DiskStream::playlist_deleted));
378 if (!overwrite_queued) {
379 _session.request_overwrite_buffer (this);
380 overwrite_queued = true;
383 PlaylistChanged (); /* EMIT SIGNAL */
384 _session.set_dirty ();
390 DiskStream::playlist_deleted (Playlist* pl)
392 /* this catches an ordering issue with session destruction. playlists
393 are destroyed before diskstreams. we have to invalidate any handles
394 we have to the playlist.
401 DiskStream::use_new_playlist ()
404 AudioPlaylist* playlist;
406 if (!in_set_state && destructive()) {
411 newname = Playlist::bump_name (_playlist->name(), _session);
413 newname = Playlist::bump_name (_name, _session);
416 if ((playlist = new AudioPlaylist (_session, newname, hidden())) != 0) {
417 playlist->set_orig_diskstream_id (id());
418 return use_playlist (playlist);
425 DiskStream::use_copy_playlist ()
431 if (_playlist == 0) {
432 error << string_compose(_("DiskStream %1: there is no existing playlist to make a copy of!"), _name) << endmsg;
437 AudioPlaylist* playlist;
439 newname = Playlist::bump_name (_playlist->name(), _session);
441 if ((playlist = new AudioPlaylist (*_playlist, newname)) != 0) {
442 playlist->set_orig_diskstream_id (id());
443 return use_playlist (playlist);
450 DiskStream::setup_destructive_playlist ()
452 AudioRegion::SourceList srcs;
454 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
455 srcs.push_back ((*chan).write_source);
458 /* a single full-sized region */
460 AudioRegion* region = new AudioRegion (srcs, 0, max_frames, _name);
461 _playlist->add_region (*region, 0);
465 DiskStream::use_destructive_playlist ()
467 /* use the sources associated with the single full-extent region */
469 Playlist::RegionList* rl = _playlist->regions_at (0);
472 reset_write_sources (false, true);
476 AudioRegion* region = dynamic_cast<AudioRegion*> (rl->front());
479 throw failed_constructor();
485 ChannelList::iterator chan;
487 for (n = 0, chan = channels.begin(); chan != channels.end(); ++chan, ++n) {
488 (*chan).write_source = dynamic_cast<FileSource*>(®ion->source (n));
489 (*chan).write_source->set_allow_remove_if_empty (false);
492 /* the source list will never be reset for a destructive track */
496 DiskStream::set_io (IO& io)
499 set_align_style_from_io ();
503 DiskStream::set_name (string str, void *src)
506 _playlist->set_name (str);
509 if (!in_set_state && recordable()) {
510 /* rename existing capture files so that they have the correct name */
511 return rename_write_sources ();
521 DiskStream::set_speed (double sp)
523 _session.request_diskstream_speed (*this, sp);
525 /* to force a rebuffering at the right place */
530 DiskStream::realtime_set_speed (double sp, bool global)
532 bool changed = false;
533 double new_speed = sp * _session.transport_speed();
535 if (_visible_speed != sp) {
540 if (new_speed != _actual_speed) {
542 jack_nframes_t required_wrap_size = (jack_nframes_t) floor (_session.get_block_size() *
543 fabs (new_speed)) + 1;
545 if (required_wrap_size > wrap_buffer_size) {
546 _buffer_reallocation_required = true;
549 _actual_speed = new_speed;
550 phi = (uint64_t) (0x1000000 * fabs(_actual_speed));
555 _seek_required = true;
557 speed_changed (); /* EMIT SIGNAL */
560 return _buffer_reallocation_required || _seek_required;
564 DiskStream::non_realtime_set_speed ()
566 if (_buffer_reallocation_required)
568 LockMonitor lm (state_lock, __LINE__, __FILE__);
569 allocate_temporary_buffers ();
571 _buffer_reallocation_required = false;
574 if (_seek_required) {
575 if (speed() != 1.0f || speed() != -1.0f) {
576 seek ((jack_nframes_t) (_session.transport_frame() * (double) speed()), true);
579 seek (_session.transport_frame(), true);
582 _seek_required = false;
587 DiskStream::prepare ()
590 playback_distance = 0;
594 DiskStream::check_record_status (jack_nframes_t transport_frame, jack_nframes_t nframes, bool can_record)
596 int possibly_recording;
599 const int transport_rolling = 0x4;
600 const int track_rec_enabled = 0x2;
601 const int global_rec_enabled = 0x1;
603 /* merge together the 3 factors that affect record status, and compute
607 rolling = _session.transport_speed() != 0.0f;
608 possibly_recording = (rolling << 2) | (record_enabled() << 1) | can_record;
609 change = possibly_recording ^ last_possibly_recording;
611 if (possibly_recording == last_possibly_recording) {
617 /* if per-track or global rec-enable turned on while the other was already on, we've started recording */
619 if ((change & track_rec_enabled) && record_enabled() && (!(change & global_rec_enabled) && can_record) ||
620 ((change & global_rec_enabled) && can_record && (!(change & track_rec_enabled) && record_enabled()))) {
622 /* starting to record: compute first+last frames */
624 first_recordable_frame = transport_frame + _capture_offset;
625 last_recordable_frame = max_frames;
626 capture_start_frame = transport_frame;
628 if (!(last_possibly_recording & transport_rolling) && (possibly_recording & transport_rolling)) {
630 /* was stopped, now rolling (and recording) */
632 if (_alignment_style == ExistingMaterial) {
633 first_recordable_frame += _session.worst_output_latency();
635 first_recordable_frame += _roll_delay;
640 /* was rolling, but record state changed */
642 if (_alignment_style == ExistingMaterial) {
645 if (!_session.get_punch_in()) {
647 /* manual punch in happens at the correct transport frame
648 because the user hit a button. but to get alignment correct
649 we have to back up the position of the new region to the
650 appropriate spot given the roll delay.
653 capture_start_frame -= _roll_delay;
655 /* XXX paul notes (august 2005): i don't know why
659 first_recordable_frame += _capture_offset;
663 /* autopunch toggles recording at the precise
664 transport frame, and then the DS waits
665 to start recording for a time that depends
666 on the output latency.
669 first_recordable_frame += _session.worst_output_latency();
674 if (_session.get_punch_in()) {
675 first_recordable_frame += _roll_delay;
677 capture_start_frame -= _roll_delay;
683 if (_flags & Recordable) {
684 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
686 RingBufferNPT<CaptureTransition>::rw_vector transvec;
687 (*chan).capture_transition_buf->get_write_vector(&transvec);
689 if (transvec.len[0] > 0) {
690 transvec.buf[0]->type = CaptureStart;
691 transvec.buf[0]->capture_val = capture_start_frame;
692 (*chan).capture_transition_buf->increment_write_ptr(1);
696 fatal << X_("programming error: capture_transition_buf is full on rec start! inconceivable!")
702 } else if (!record_enabled() || !can_record) {
706 last_recordable_frame = transport_frame + _capture_offset;
708 if (_alignment_style == ExistingMaterial) {
709 last_recordable_frame += _session.worst_output_latency();
711 last_recordable_frame += _roll_delay;
715 last_possibly_recording = possibly_recording;
719 DiskStream::process (jack_nframes_t transport_frame, jack_nframes_t nframes, jack_nframes_t offset, bool can_record, bool rec_monitors_input)
722 ChannelList::iterator c;
724 jack_nframes_t rec_offset = 0;
725 jack_nframes_t rec_nframes = 0;
726 bool nominally_recording;
727 bool re = record_enabled ();
728 bool collect_playback = false;
730 /* if we've already processed the frames corresponding to this call,
731 just return. this allows multiple routes that are taking input
732 from this diskstream to call our ::process() method, but have
733 this stuff only happen once. more commonly, it allows both
734 the AudioTrack that is using this DiskStream *and* the Session
735 to call process() without problems.
742 check_record_status (transport_frame, nframes, can_record);
744 nominally_recording = (can_record && re);
751 /* This lock is held until the end of DiskStream::commit, so these two functions
752 must always be called as a pair. The only exception is if this function
753 returns a non-zero value, in which case, ::commit should not be called.
756 if (pthread_mutex_trylock (state_lock.mutex())) {
760 adjust_capture_position = 0;
762 for (c = channels.begin(); c != channels.end(); ++c) {
763 (*c).current_capture_buffer = 0;
764 (*c).current_playback_buffer = 0;
767 if (nominally_recording || (_session.get_record_enabled() && _session.get_punch_in())) {
770 ot = coverage (first_recordable_frame, last_recordable_frame, transport_frame, transport_frame + nframes);
777 case OverlapInternal:
778 /* ---------- recrange
781 rec_nframes = nframes;
786 /* |--------| recrange
789 rec_nframes = transport_frame + nframes - first_recordable_frame;
791 rec_offset = first_recordable_frame - transport_frame;
796 /* |--------| recrange
799 rec_nframes = last_recordable_frame - transport_frame;
803 case OverlapExternal:
804 /* |--------| recrange
805 -------------- transrange
807 rec_nframes = last_recordable_frame - last_recordable_frame;
808 rec_offset = first_recordable_frame - transport_frame;
812 if (rec_nframes && !was_recording) {
813 capture_captured = 0;
814 was_recording = true;
819 if (can_record && !_last_capture_regions.empty()) {
820 _last_capture_regions.clear ();
823 if (nominally_recording || rec_nframes) {
825 for (n = 0, c = channels.begin(); c != channels.end(); ++c, ++n) {
827 ChannelInfo& chan (*c);
829 chan.capture_buf->get_write_vector (&chan.capture_vector);
831 if (rec_nframes <= chan.capture_vector.len[0]) {
833 chan.current_capture_buffer = chan.capture_vector.buf[0];
835 /* note: grab the entire port buffer, but only copy what we were supposed to for recording, and use
839 memcpy (chan.current_capture_buffer, _io->input(n)->get_buffer (rec_nframes) + offset + rec_offset, sizeof (Sample) * rec_nframes);
843 jack_nframes_t total = chan.capture_vector.len[0] + chan.capture_vector.len[1];
845 if (rec_nframes > total) {
850 Sample* buf = _io->input (n)->get_buffer (nframes) + offset;
851 jack_nframes_t first = chan.capture_vector.len[0];
853 memcpy (chan.capture_wrap_buffer, buf, sizeof (Sample) * first);
854 memcpy (chan.capture_vector.buf[0], buf, sizeof (Sample) * first);
855 memcpy (chan.capture_wrap_buffer+first, buf + first, sizeof (Sample) * (rec_nframes - first));
856 memcpy (chan.capture_vector.buf[1], buf + first, sizeof (Sample) * (rec_nframes - first));
858 chan.current_capture_buffer = chan.capture_wrap_buffer;
865 finish_capture (rec_monitors_input);
872 /* data will be written to disk */
874 if (rec_nframes == nframes && rec_offset == 0) {
876 for (c = channels.begin(); c != channels.end(); ++c) {
877 (*c).current_playback_buffer = (*c).current_capture_buffer;
880 playback_distance = nframes;
885 /* we can't use the capture buffer as the playback buffer, because
886 we recorded only a part of the current process' cycle data
890 collect_playback = true;
893 adjust_capture_position = rec_nframes;
895 } else if (nominally_recording) {
897 /* can't do actual capture yet - waiting for latency effects to finish before we start*/
899 for (c = channels.begin(); c != channels.end(); ++c) {
900 (*c).current_playback_buffer = (*c).current_capture_buffer;
903 playback_distance = nframes;
907 collect_playback = true;
910 if (collect_playback) {
912 /* we're doing playback */
914 jack_nframes_t necessary_samples;
916 /* no varispeed playback if we're recording, because the output .... TBD */
918 if (rec_nframes == 0 && _actual_speed != 1.0f) {
919 necessary_samples = (jack_nframes_t) floor ((nframes * fabs (_actual_speed))) + 1;
921 necessary_samples = nframes;
924 for (c = channels.begin(); c != channels.end(); ++c) {
925 (*c).playback_buf->get_read_vector (&(*c).playback_vector);
930 for (c = channels.begin(); c != channels.end(); ++c, ++n) {
932 ChannelInfo& chan (*c);
934 if (necessary_samples <= chan.playback_vector.len[0]) {
936 chan.current_playback_buffer = chan.playback_vector.buf[0];
939 jack_nframes_t total = chan.playback_vector.len[0] + chan.playback_vector.len[1];
941 if (necessary_samples > total) {
947 memcpy ((char *) chan.playback_wrap_buffer, chan.playback_vector.buf[0],
948 chan.playback_vector.len[0] * sizeof (Sample));
949 memcpy (chan.playback_wrap_buffer + chan.playback_vector.len[0], chan.playback_vector.buf[1],
950 (necessary_samples - chan.playback_vector.len[0]) * sizeof (Sample));
952 chan.current_playback_buffer = chan.playback_wrap_buffer;
957 if (rec_nframes == 0 && _actual_speed != 1.0f && _actual_speed != -1.0f) {
959 uint64_t phase = last_phase;
960 jack_nframes_t i = 0;
962 // Linearly interpolate into the alt buffer
963 // using 40.24 fixp maths (swh)
965 for (c = channels.begin(); c != channels.end(); ++c) {
968 ChannelInfo& chan (*c);
973 for (jack_nframes_t outsample = 0; outsample < nframes; ++outsample) {
975 fr = (phase & 0xFFFFFF) / 16777216.0f;
976 chan.speed_buffer[outsample] =
977 chan.current_playback_buffer[i] * (1.0f - fr) +
978 chan.current_playback_buffer[i+1] * fr;
982 chan.current_playback_buffer = chan.speed_buffer;
985 playback_distance = i + 1;
986 last_phase = (phase & 0xFFFFFF);
989 playback_distance = nframes;
1001 /* we're exiting with failure, so ::commit will not
1002 be called. unlock the state lock.
1005 pthread_mutex_unlock (state_lock.mutex());
1012 DiskStream::recover ()
1014 pthread_mutex_unlock (state_lock.mutex());
1019 DiskStream::commit (jack_nframes_t nframes)
1021 bool need_butler = false;
1023 if (_actual_speed < 0.0) {
1024 playback_sample -= playback_distance;
1026 playback_sample += playback_distance;
1029 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1031 (*chan).playback_buf->increment_read_ptr (playback_distance);
1033 if (adjust_capture_position) {
1034 (*chan).capture_buf->increment_write_ptr (adjust_capture_position);
1038 if (adjust_capture_position != 0) {
1039 capture_captured += adjust_capture_position;
1040 adjust_capture_position = 0;
1044 need_butler = channels[0].playback_buf->write_space() >= channels[0].playback_buf->bufsize() / 2;
1046 need_butler = channels[0].playback_buf->write_space() >= disk_io_chunk_frames
1047 || channels[0].capture_buf->read_space() >= disk_io_chunk_frames;
1050 pthread_mutex_unlock (state_lock.mutex());
1058 DiskStream::set_pending_overwrite (bool yn)
1060 /* called from audio thread, so we can use the read ptr and playback sample as we wish */
1062 pending_overwrite = yn;
1064 overwrite_frame = playback_sample;
1065 overwrite_offset = channels.front().playback_buf->get_read_ptr();
1069 DiskStream::overwrite_existing_buffers ()
1071 Sample* mixdown_buffer;
1075 bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
1077 overwrite_queued = false;
1079 /* assume all are the same size */
1080 jack_nframes_t size = channels[0].playback_buf->bufsize();
1082 mixdown_buffer = new Sample[size];
1083 gain_buffer = new float[size];
1084 workbuf = new char[size*4];
1086 /* reduce size so that we can fill the buffer correctly. */
1090 jack_nframes_t start;
1092 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan, ++n) {
1094 start = overwrite_frame;
1095 jack_nframes_t cnt = size;
1097 /* to fill the buffer without resetting the playback sample, we need to
1098 do it one or two chunks (normally two).
1100 |----------------------------------------------------------------------|
1104 |<- second chunk->||<----------------- first chunk ------------------>|
1108 jack_nframes_t to_read = size - overwrite_offset;
1110 if (read ((*chan).playback_buf->buffer() + overwrite_offset, mixdown_buffer, gain_buffer, workbuf,
1111 start, to_read, *chan, n, reversed)) {
1112 error << string_compose(_("DiskStream %1: when refilling, cannot read %2 from playlist at frame %3"),
1113 _id, size, playback_sample) << endmsg;
1117 if (cnt > to_read) {
1121 if (read ((*chan).playback_buf->buffer(), mixdown_buffer, gain_buffer, workbuf,
1122 start, cnt, *chan, n, reversed)) {
1123 error << string_compose(_("DiskStream %1: when refilling, cannot read %2 from playlist at frame %3"),
1124 _id, size, playback_sample) << endmsg;
1133 pending_overwrite = false;
1134 delete [] gain_buffer;
1135 delete [] mixdown_buffer;
1141 DiskStream::seek (jack_nframes_t frame, bool complete_refill)
1143 LockMonitor lm (state_lock, __LINE__, __FILE__);
1146 ChannelList::iterator chan;
1148 for (n = 0, chan = channels.begin(); chan != channels.end(); ++chan, ++n) {
1149 (*chan).playback_buf->reset ();
1150 (*chan).capture_buf->reset ();
1151 if ((*chan).write_source) {
1152 (*chan).write_source->seek (frame);
1156 playback_sample = frame;
1159 if (complete_refill) {
1160 while ((ret = do_refill (0, 0, 0)) > 0);
1162 ret = do_refill (0, 0, 0);
1169 DiskStream::can_internal_playback_seek (jack_nframes_t distance)
1171 ChannelList::iterator chan;
1173 for (chan = channels.begin(); chan != channels.end(); ++chan) {
1174 if ((*chan).playback_buf->read_space() < distance) {
1182 DiskStream::internal_playback_seek (jack_nframes_t distance)
1184 ChannelList::iterator chan;
1186 for (chan = channels.begin(); chan != channels.end(); ++chan) {
1187 (*chan).playback_buf->increment_read_ptr (distance);
1190 first_recordable_frame += distance;
1191 playback_sample += distance;
1197 DiskStream::read (Sample* buf, Sample* mixdown_buffer, float* gain_buffer, char * workbuf, jack_nframes_t& start, jack_nframes_t cnt,
1198 ChannelInfo& channel_info, int channel, bool reversed)
1200 jack_nframes_t this_read = 0;
1201 bool reloop = false;
1202 jack_nframes_t loop_end = 0;
1203 jack_nframes_t loop_start = 0;
1204 jack_nframes_t loop_length = 0;
1205 jack_nframes_t offset = 0;
1209 /* Make the use of a Location atomic for this read operation.
1211 Note: Locations don't get deleted, so all we care about
1212 when I say "atomic" is that we are always pointing to
1213 the same one and using a start/length values obtained
1217 if ((loc = loop_location) != 0) {
1218 loop_start = loc->start();
1219 loop_end = loc->end();
1220 loop_length = loop_end - loop_start;
1223 /* if we are looping, ensure that the first frame we read is at the correct
1224 position within the loop.
1227 if (loc && start >= loop_end) {
1228 //cerr << "start adjusted from " << start;
1229 start = loop_start + ((start - loop_start) % loop_length);
1230 //cerr << "to " << start << endl;
1232 //cerr << "start is " << start << " loopstart: " << loop_start << " loopend: " << loop_end << endl;
1237 /* take any loop into account. we can't read past the end of the loop. */
1239 if (loc && (loop_end - start < cnt)) {
1240 this_read = loop_end - start;
1241 //cerr << "reloop true: thisread: " << this_read << " cnt: " << cnt << endl;
1248 if (this_read == 0) {
1252 this_read = min(cnt,this_read);
1254 if (_playlist->read (buf+offset, mixdown_buffer, gain_buffer, workbuf, start, this_read, channel) != this_read) {
1255 error << string_compose(_("DiskStream %1: cannot read %2 from playlist at frame %3"), _id, this_read,
1260 _read_data_count = _playlist->read_data_count();
1264 /* don't adjust start, since caller has already done that
1267 swap_by_ptr (buf, buf + this_read - 1);
1271 /* if we read to the end of the loop, go back to the beginning */
1281 offset += this_read;
1288 DiskStream::do_refill (Sample* mixdown_buffer, float* gain_buffer, char * workbuf)
1291 jack_nframes_t to_read;
1292 RingBufferNPT<Sample>::rw_vector vector;
1296 bool reversed = (_visible_speed * _session.transport_speed()) < 0.0f;
1297 jack_nframes_t total_space;
1298 jack_nframes_t zero_fill;
1300 ChannelList::iterator i;
1303 channels.front().playback_buf->get_write_vector (&vector);
1305 if ((total_space = vector.len[0] + vector.len[1]) == 0) {
1309 /* if there are 2+ chunks of disk i/o possible for
1310 this track, let the caller know so that it can arrange
1311 for us to be called again, ASAP.
1314 if (total_space >= (_slaved?3:2) * disk_io_chunk_frames) {
1318 /* if we're running close to normal speed and there isn't enough
1319 space to do disk_io_chunk_frames of I/O, then don't bother.
1321 at higher speeds, just do it because the sync between butler
1322 and audio thread may not be good enough.
1325 if ((total_space < disk_io_chunk_frames) && fabs (_actual_speed) < 2.0f) {
1329 /* when slaved, don't try to get too close to the read pointer. this
1330 leaves space for the buffer reversal to have something useful to
1334 if (_slaved && total_space < (channels.front().playback_buf->bufsize() / 2)) {
1338 total_space = min (disk_io_chunk_frames, total_space);
1342 if (file_frame == 0) {
1344 /* at start: nothing to do but fill with silence */
1346 for (chan_n = 0, i = channels.begin(); i != channels.end(); ++i, ++chan_n) {
1348 ChannelInfo& chan (*i);
1349 chan.playback_buf->get_write_vector (&vector);
1350 memset (vector.buf[0], 0, sizeof(Sample) * vector.len[0]);
1351 if (vector.len[1]) {
1352 memset (vector.buf[1], 0, sizeof(Sample) * vector.len[1]);
1354 chan.playback_buf->increment_write_ptr (vector.len[0] + vector.len[1]);
1359 if (file_frame < total_space) {
1361 /* too close to the start: read what we can,
1362 and then zero fill the rest
1365 zero_fill = total_space - file_frame;
1366 total_space = file_frame;
1371 /* move read position backwards because we are going
1372 to reverse the data.
1375 file_frame -= total_space;
1381 if (file_frame == max_frames) {
1383 /* at end: nothing to do but fill with silence */
1385 for (chan_n = 0, i = channels.begin(); i != channels.end(); ++i, ++chan_n) {
1387 ChannelInfo& chan (*i);
1388 chan.playback_buf->get_write_vector (&vector);
1389 memset (vector.buf[0], 0, sizeof(Sample) * vector.len[0]);
1390 if (vector.len[1]) {
1391 memset (vector.buf[1], 0, sizeof(Sample) * vector.len[1]);
1393 chan.playback_buf->increment_write_ptr (vector.len[0] + vector.len[1]);
1398 if (file_frame > max_frames - total_space) {
1400 /* to close to the end: read what we can, and zero fill the rest */
1402 zero_fill = total_space - (max_frames - file_frame);
1403 total_space = max_frames - file_frame;
1410 /* Please note: the code to allocate buffers isn't run
1411 during normal butler thread operation. Its there
1412 for other times when we need to call do_refill()
1413 from somewhere other than the butler thread.
1416 if (mixdown_buffer == 0) {
1417 mixdown_buffer = new Sample[disk_io_chunk_frames];
1418 free_mixdown = true;
1420 free_mixdown = false;
1423 if (gain_buffer == 0) {
1424 gain_buffer = new float[disk_io_chunk_frames];
1431 workbuf = new char[disk_io_chunk_frames * 4];
1432 free_workbuf = true;
1434 free_workbuf = false;
1437 jack_nframes_t file_frame_tmp = 0;
1439 for (chan_n = 0, i = channels.begin(); i != channels.end(); ++i, ++chan_n) {
1441 ChannelInfo& chan (*i);
1444 jack_nframes_t len1, len2;
1446 chan.playback_buf->get_write_vector (&vector);
1449 file_frame_tmp = file_frame;
1452 buf1 = vector.buf[1];
1453 len1 = vector.len[1];
1454 buf2 = vector.buf[0];
1455 len2 = vector.len[0];
1457 buf1 = vector.buf[0];
1458 len1 = vector.len[0];
1459 buf2 = vector.buf[1];
1460 len2 = vector.len[1];
1464 to_read = min (ts, len1);
1465 to_read = min (to_read, disk_io_chunk_frames);
1469 if (read (buf1, mixdown_buffer, gain_buffer, workbuf, file_frame_tmp, to_read, chan, chan_n, reversed)) {
1474 chan.playback_buf->increment_write_ptr (to_read);
1478 to_read = min (ts, len2);
1483 /* we read all of vector.len[0], but it wasn't an entire disk_io_chunk_frames of data,
1484 so read some or all of vector.len[1] as well.
1487 if (read (buf2, mixdown_buffer, gain_buffer, workbuf, file_frame_tmp, to_read, chan, chan_n, reversed)) {
1492 chan.playback_buf->increment_write_ptr (to_read);
1501 file_frame = file_frame_tmp;
1505 delete [] mixdown_buffer;
1508 delete [] gain_buffer;
1518 DiskStream::do_flush (char * workbuf, bool force_flush)
1522 RingBufferNPT<Sample>::rw_vector vector;
1523 RingBufferNPT<CaptureTransition>::rw_vector transvec;
1524 jack_nframes_t total;
1526 /* important note: this function will write *AT MOST*
1527 disk_io_chunk_frames of data to disk. it will never
1528 write more than that. if its writes that much and there
1529 is more than that waiting to be written, it will return 1,
1530 otherwise 0 on success or -1 on failure.
1532 if there is less than disk_io_chunk_frames to be written,
1533 no data will be written at all unless `force_flush' is true.
1536 _write_data_count = 0;
1538 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1540 (*chan).capture_buf->get_read_vector (&vector);
1542 total = vector.len[0] + vector.len[1];
1545 if (total == 0 || (total < disk_io_chunk_frames && !force_flush && was_recording)) {
1550 /* if there are 2+ chunks of disk i/o possible for
1551 this track, let the caller know so that it can arrange
1552 for us to be called again, ASAP.
1554 if we are forcing a flush, then if there is* any* extra
1555 work, let the caller know.
1557 if we are no longer recording and there is any extra work,
1558 let the caller know too.
1561 if (total >= 2 * disk_io_chunk_frames || ((force_flush || !was_recording) && total > disk_io_chunk_frames)) {
1565 to_write = min (disk_io_chunk_frames, (jack_nframes_t) vector.len[0]);
1568 // check the transition buffer when recording destructive
1569 // important that we get this after the capture buf
1571 if (destructive()) {
1572 (*chan).capture_transition_buf->get_read_vector(&transvec);
1573 size_t transcount = transvec.len[0] + transvec.len[1];
1574 bool have_start = false;
1577 for (ti=0; ti < transcount; ++ti) {
1578 CaptureTransition & captrans = (ti < transvec.len[0]) ? transvec.buf[0][ti] : transvec.buf[1][ti-transvec.len[0]];
1580 if (captrans.type == CaptureStart) {
1581 // by definition, the first data we got above represents the given capture pos
1583 (*chan).write_source->mark_capture_start (captrans.capture_val);
1584 (*chan).curr_capture_cnt = 0;
1588 else if (captrans.type == CaptureEnd) {
1590 // capture end, the capture_val represents total frames in capture
1592 if (captrans.capture_val <= (*chan).curr_capture_cnt + to_write) {
1594 // shorten to make the write a perfect fit
1595 uint32_t nto_write = (captrans.capture_val - (*chan).curr_capture_cnt);
1597 if (nto_write < to_write) {
1598 ret = 1; // should we?
1600 to_write = nto_write;
1602 (*chan).write_source->mark_capture_end ();
1604 // increment past this transition, but go no further
1609 // actually ends just beyond this chunk, so force more work
1617 (*chan).capture_transition_buf->increment_read_ptr(ti);
1621 if ((!(*chan).write_source) || (*chan).write_source->write (vector.buf[0], to_write, workbuf) != to_write) {
1622 error << string_compose(_("DiskStream %1: cannot write to disk"), _id) << endmsg;
1626 (*chan).capture_buf->increment_read_ptr (to_write);
1627 (*chan).curr_capture_cnt += to_write;
1629 if ((to_write == vector.len[0]) && (total > to_write) && (to_write < disk_io_chunk_frames) && !destructive()) {
1631 /* we wrote all of vector.len[0] but it wasn't an entire
1632 disk_io_chunk_frames of data, so arrange for some part
1633 of vector.len[1] to be flushed to disk as well.
1636 to_write = min ((jack_nframes_t)(disk_io_chunk_frames - to_write), (jack_nframes_t) vector.len[1]);
1638 if ((*chan).write_source->write (vector.buf[1], to_write, workbuf) != to_write) {
1639 error << string_compose(_("DiskStream %1: cannot write to disk"), _id) << endmsg;
1643 _write_data_count += (*chan).write_source->write_data_count();
1645 (*chan).capture_buf->increment_read_ptr (to_write);
1646 (*chan).curr_capture_cnt += to_write;
1655 DiskStream::playlist_changed (Change ignored)
1657 playlist_modified ();
1661 DiskStream::playlist_modified ()
1663 if (!i_am_the_modifier && !overwrite_queued) {
1664 _session.request_overwrite_buffer (this);
1665 overwrite_queued = true;
1670 DiskStream::transport_stopped (struct tm& when, time_t twhen, bool abort_capture)
1672 uint32_t buffer_position;
1673 bool more_work = true;
1675 AudioRegion* region = 0;
1676 jack_nframes_t total_capture;
1677 AudioRegion::SourceList srcs;
1678 AudioRegion::SourceList::iterator src;
1679 ChannelList::iterator chan;
1680 vector<CaptureInfo*>::iterator ci;
1682 list<Source*>* deletion_list;
1683 bool mark_write_completed = false;
1685 finish_capture (true);
1687 /* butler is already stopped, but there may be work to do
1688 to flush remaining data to disk.
1691 while (more_work && !err) {
1692 switch (do_flush ( _session.conversion_buffer(Session::TransportContext), true)) {
1699 error << string_compose(_("DiskStream \"%1\": cannot flush captured data to disk!"), _name) << endmsg;
1704 /* XXX is there anything we can do if err != 0 ? */
1705 LockMonitor lm (capture_info_lock, __LINE__, __FILE__);
1707 if (capture_info.empty()) {
1711 if (abort_capture) {
1713 ChannelList::iterator chan;
1715 deletion_list = new list<Source*>;
1717 for ( chan = channels.begin(); chan != channels.end(); ++chan) {
1719 if ((*chan).write_source) {
1721 (*chan).write_source->mark_for_remove ();
1722 (*chan).write_source->release ();
1724 deletion_list->push_back ((*chan).write_source);
1726 (*chan).write_source = 0;
1729 /* new source set up in "out" below */
1732 if (!deletion_list->empty()) {
1733 DeleteSources (deletion_list);
1735 delete deletion_list;
1741 for (total_capture = 0, ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
1742 total_capture += (*ci)->frames;
1745 /* figure out the name for this take */
1747 for (n = 0, chan = channels.begin(); chan != channels.end(); ++chan, ++n) {
1749 Source* s = (*chan).write_source;
1757 if ((fsrc = dynamic_cast<FileSource *>(s)) != 0) {
1758 fsrc->update_header (capture_info.front()->start, when, twhen);
1761 s->set_captured_for (_name);
1766 /* destructive tracks have a single, never changing region */
1768 if (destructive()) {
1770 /* send a signal that any UI can pick up to do the right thing. there is
1771 a small problem here in that a UI may need the peak data to be ready
1772 for the data that was recorded and this isn't interlocked with that
1773 process. this problem is deferred to the UI.
1776 _playlist->Modified();
1780 /* Register a new region with the Session that
1781 describes the entire source. Do this first
1782 so that any sub-regions will obviously be
1783 children of this one (later!)
1787 region = new AudioRegion (srcs, channels[0].write_source->last_capture_start_frame(), total_capture,
1788 region_name_from_path (channels[0].write_source->name()),
1789 0, AudioRegion::Flag (AudioRegion::DefaultFlags|AudioRegion::Automatic|AudioRegion::WholeFile));
1791 region->special_set_position (capture_info.front()->start);
1795 catch (failed_constructor& err) {
1796 error << string_compose(_("%1: could not create region for complete audio file"), _name) << endmsg;
1800 _last_capture_regions.push_back (region);
1802 // cerr << _name << ": there are " << capture_info.size() << " capture_info records\n";
1804 _session.add_undo (_playlist->get_memento());
1805 _playlist->freeze ();
1807 for (buffer_position = channels[0].write_source->last_capture_start_frame(), ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
1810 _session.region_name (region_name, channels[0].write_source->name(), false);
1812 // cerr << _name << ": based on ci of " << (*ci)->start << " for " << (*ci)->frames << " add a region\n";
1815 region = new AudioRegion (srcs, buffer_position, (*ci)->frames, region_name);
1818 catch (failed_constructor& err) {
1819 error << _("DiskStream: could not create region for captured audio!") << endmsg;
1820 continue; /* XXX is this OK? */
1823 _last_capture_regions.push_back (region);
1825 // cerr << "add new region, buffer position = " << buffer_position << " @ " << (*ci)->start << endl;
1827 i_am_the_modifier++;
1828 _playlist->add_region (*region, (*ci)->start);
1829 i_am_the_modifier--;
1831 buffer_position += (*ci)->frames;
1835 _session.add_redo_no_execute (_playlist->get_memento());
1838 mark_write_completed = true;
1840 reset_write_sources (mark_write_completed);
1843 for (ci = capture_info.begin(); ci != capture_info.end(); ++ci) {
1847 capture_info.clear ();
1848 capture_start_frame = 0;
1852 DiskStream::finish_capture (bool rec_monitors_input)
1854 was_recording = false;
1856 if (capture_captured == 0) {
1860 if (recordable() && destructive()) {
1861 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1863 RingBufferNPT<CaptureTransition>::rw_vector transvec;
1864 (*chan).capture_transition_buf->get_write_vector(&transvec);
1867 if (transvec.len[0] > 0) {
1868 transvec.buf[0]->type = CaptureEnd;
1869 transvec.buf[0]->capture_val = capture_captured;
1870 (*chan).capture_transition_buf->increment_write_ptr(1);
1874 fatal << string_compose (_("programmer error: %1"), X_("capture_transition_buf is full when stopping record! inconceivable!")) << endmsg;
1880 CaptureInfo* ci = new CaptureInfo;
1882 ci->start = capture_start_frame;
1883 ci->frames = capture_captured;
1885 /* XXX theoretical race condition here. Need atomic exchange ?
1886 However, the circumstances when this is called right
1887 now (either on record-disable or transport_stopped)
1888 mean that no actual race exists. I think ...
1889 We now have a capture_info_lock, but it is only to be used
1890 to synchronize in the transport_stop and the capture info
1891 accessors, so that invalidation will not occur (both non-realtime).
1894 // cerr << "Finish capture, add new CI, " << ci->start << '+' << ci->frames << endl;
1896 capture_info.push_back (ci);
1897 capture_captured = 0;
1901 DiskStream::set_record_enabled (bool yn, void* src)
1903 bool rolling = _session.transport_speed() != 0.0f;
1905 if (!recordable() || !_session.record_enabling_legal()) {
1909 /* if we're turning on rec-enable, there needs to be an
1913 if (yn && channels[0].source == 0) {
1915 /* pick up connections not initiated *from* the IO object
1916 we're associated with.
1919 get_input_sources ();
1922 /* yes, i know that this not proof against race conditions, but its
1923 good enough. i think.
1926 if (record_enabled() != yn) {
1928 atomic_set (&_record_enabled, 1);
1929 capturing_sources.clear ();
1930 if (Config->get_use_hardware_monitoring()) {
1931 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1932 if ((*chan).source) {
1933 (*chan).source->request_monitor_input (!(_session.get_auto_input() && rolling));
1935 capturing_sources.push_back ((*chan).write_source);
1938 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1939 capturing_sources.push_back ((*chan).write_source);
1944 atomic_set (&_record_enabled, 0);
1945 if (Config->get_use_hardware_monitoring()) {
1946 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
1947 if ((*chan).source) {
1948 (*chan).source->request_monitor_input (false);
1952 capturing_sources.clear ();
1955 record_enable_changed (src); /* EMIT SIGNAL */
1960 DiskStream::get_state ()
1962 XMLNode* node = new XMLNode ("DiskStream");
1964 LocaleGuard lg (X_("POSIX"));
1966 snprintf (buf, sizeof(buf), "0x%x", _flags);
1967 node->add_property ("flags", buf);
1969 snprintf (buf, sizeof(buf), "%zd", channels.size());
1970 node->add_property ("channels", buf);
1972 node->add_property ("playlist", _playlist->name());
1974 snprintf (buf, sizeof(buf), "%f", _visible_speed);
1975 node->add_property ("speed", buf);
1977 node->add_property("name", _name);
1978 snprintf (buf, sizeof(buf), "%" PRIu64, id());
1979 node->add_property("id", buf);
1981 if (!capturing_sources.empty() && _session.get_record_enabled()) {
1983 XMLNode* cs_child = new XMLNode (X_("CapturingSources"));
1984 XMLNode* cs_grandchild;
1986 for (vector<FileSource*>::iterator i = capturing_sources.begin(); i != capturing_sources.end(); ++i) {
1987 cs_grandchild = new XMLNode (X_("file"));
1988 cs_grandchild->add_property (X_("path"), (*i)->path());
1989 cs_child->add_child_nocopy (*cs_grandchild);
1992 /* store the location where capture will start */
1996 if (_session.get_punch_in() && ((pi = _session.locations()->auto_punch_location()) != 0)) {
1997 snprintf (buf, sizeof (buf), "%" PRIu32, pi->start());
1999 snprintf (buf, sizeof (buf), "%" PRIu32, _session.transport_frame());
2002 cs_child->add_property (X_("at"), buf);
2003 node->add_child_nocopy (*cs_child);
2007 node->add_child_copy (*_extra_xml);
2014 DiskStream::set_state (const XMLNode& node)
2016 const XMLProperty* prop;
2017 XMLNodeList nlist = node.children();
2018 XMLNodeIterator niter;
2019 uint32_t nchans = 1;
2020 XMLNode* capture_pending_node = 0;
2021 LocaleGuard lg (X_("POSIX"));
2023 in_set_state = true;
2025 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2026 if ((*niter)->name() == IO::state_node_name) {
2027 deprecated_io_node = new XMLNode (**niter);
2030 if ((*niter)->name() == X_("CapturingSources")) {
2031 capture_pending_node = *niter;
2035 /* prevent write sources from being created */
2037 in_set_state = true;
2039 if ((prop = node.property ("name")) != 0) {
2040 _name = prop->value();
2043 if (deprecated_io_node) {
2044 if ((prop = deprecated_io_node->property ("id")) != 0) {
2045 sscanf (prop->value().c_str(), "%" PRIu64, &_id);
2048 if ((prop = node.property ("id")) != 0) {
2049 sscanf (prop->value().c_str(), "%" PRIu64, &_id);
2053 if ((prop = node.property ("flags")) != 0) {
2054 _flags = strtol (prop->value().c_str(), 0, 0);
2057 if ((prop = node.property ("channels")) != 0) {
2058 nchans = atoi (prop->value().c_str());
2061 // create necessary extra channels
2062 // we are always constructed with one
2063 // and we always need one
2065 if (nchans > _n_channels) {
2067 // we need to add new channel infos
2068 //LockMonitor lm (state_lock, __LINE__, __FILE__);
2070 int diff = nchans - channels.size();
2072 for (int i=0; i < diff; ++i) {
2076 } else if (nchans < _n_channels) {
2078 // we need to get rid of channels
2079 //LockMonitor lm (state_lock, __LINE__, __FILE__);
2081 int diff = channels.size() - nchans;
2083 for (int i = 0; i < diff; ++i) {
2088 if ((prop = node.property ("playlist")) == 0) {
2093 bool had_playlist = (_playlist != 0);
2095 if (find_and_use_playlist (prop->value())) {
2099 if (!had_playlist) {
2100 _playlist->set_orig_diskstream_id (_id);
2103 if (!destructive() && capture_pending_node) {
2104 /* destructive streams have one and only one source per channel,
2105 and so they never end up in pending capture in any useful
2108 use_pending_capture_data (*capture_pending_node);
2113 if ((prop = node.property ("speed")) != 0) {
2114 double sp = atof (prop->value().c_str());
2116 if (realtime_set_speed (sp, false)) {
2117 non_realtime_set_speed ();
2121 _n_channels = channels.size();
2123 in_set_state = false;
2125 /* make sure this is clear before we do anything else */
2127 capturing_sources.clear ();
2129 /* write sources are handled when we handle the input set
2130 up of the IO that owns this DS (::non_realtime_input_change())
2133 in_set_state = false;
2139 DiskStream::use_new_write_source (uint32_t n)
2141 if (!recordable()) {
2145 if (n >= channels.size()) {
2146 error << string_compose (_("DiskStream: channel %1 out of range"), n) << endmsg;
2150 ChannelInfo &chan = channels[n];
2152 if (chan.write_source) {
2154 if (FileSource::is_empty (chan.write_source->path())) {
2155 chan.write_source->mark_for_remove ();
2156 chan.write_source->release();
2157 delete chan.write_source;
2159 chan.write_source->release();
2160 chan.write_source = 0;
2165 if ((chan.write_source = _session.create_file_source (*this, n, destructive())) == 0) {
2166 throw failed_constructor();
2170 catch (failed_constructor &err) {
2171 error << string_compose (_("%1:%2 new capture file not initialized correctly"), _name, n) << endmsg;
2172 chan.write_source = 0;
2176 chan.write_source->use ();
2178 /* do not remove destructive files even if they are empty */
2180 chan.write_source->set_allow_remove_if_empty (!destructive());
2186 DiskStream::reset_write_sources (bool mark_write_complete, bool force)
2188 ChannelList::iterator chan;
2191 if (!recordable()) {
2195 capturing_sources.clear ();
2197 for (chan = channels.begin(), n = 0; chan != channels.end(); ++chan, ++n) {
2198 if (!destructive()) {
2200 if ((*chan).write_source && mark_write_complete) {
2201 (*chan).write_source->mark_streaming_write_completed ();
2203 use_new_write_source (n);
2205 if (record_enabled()) {
2206 capturing_sources.push_back ((*chan).write_source);
2210 if ((*chan).write_source == 0) {
2211 use_new_write_source (n);
2216 if (destructive()) {
2218 /* we now have all our write sources set up, so create the
2219 playlist's single region.
2222 if (_playlist->empty()) {
2223 setup_destructive_playlist ();
2229 DiskStream::rename_write_sources ()
2231 ChannelList::iterator chan;
2234 for (chan = channels.begin(), n = 0; chan != channels.end(); ++chan, ++n) {
2235 if ((*chan).write_source != 0) {
2236 (*chan).write_source->set_name (_name, destructive());
2237 /* XXX what to do if one of them fails ? */
2245 DiskStream::set_block_size (jack_nframes_t nframes)
2247 if (_session.get_block_size() > speed_buffer_size) {
2248 speed_buffer_size = _session.get_block_size();
2250 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
2251 if ((*chan).speed_buffer) delete [] (*chan).speed_buffer;
2252 (*chan).speed_buffer = new Sample[speed_buffer_size];
2255 allocate_temporary_buffers ();
2259 DiskStream::allocate_temporary_buffers ()
2261 /* make sure the wrap buffer is at least large enough to deal
2262 with the speeds up to 1.2, to allow for micro-variation
2263 when slaving to MTC, SMPTE etc.
2266 double sp = max (fabsf (_actual_speed), 1.2f);
2267 jack_nframes_t required_wrap_size = (jack_nframes_t) floor (_session.get_block_size() * sp) + 1;
2269 if (required_wrap_size > wrap_buffer_size) {
2271 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
2272 if ((*chan).playback_wrap_buffer) delete [] (*chan).playback_wrap_buffer;
2273 (*chan).playback_wrap_buffer = new Sample[required_wrap_size];
2274 if ((*chan).capture_wrap_buffer) delete [] (*chan).capture_wrap_buffer;
2275 (*chan).capture_wrap_buffer = new Sample[required_wrap_size];
2278 wrap_buffer_size = required_wrap_size;
2283 DiskStream::monitor_input (bool yn)
2285 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
2287 if ((*chan).source) {
2288 (*chan).source->request_monitor_input (yn);
2294 DiskStream::set_capture_offset ()
2297 /* can't capture, so forget it */
2301 _capture_offset = _io->input_latency();
2305 DiskStream::set_persistent_align_style (AlignStyle a)
2307 _persistent_alignment_style = a;
2311 DiskStream::set_align_style_from_io ()
2313 bool have_physical = false;
2319 get_input_sources ();
2321 for (ChannelList::iterator chan = channels.begin(); chan != channels.end(); ++chan) {
2322 if ((*chan).source && (*chan).source->flags() & JackPortIsPhysical) {
2323 have_physical = true;
2328 if (have_physical) {
2329 set_align_style (ExistingMaterial);
2331 set_align_style (CaptureTime);
2336 DiskStream::set_align_style (AlignStyle a)
2338 if (record_enabled() && _session.actively_recording()) {
2343 if (a != _alignment_style) {
2344 _alignment_style = a;
2345 AlignmentStyleChanged ();
2350 DiskStream::add_channel ()
2352 /* XXX need to take lock??? */
2356 init_channel (chan);
2358 chan.speed_buffer = new Sample[speed_buffer_size];
2359 chan.playback_wrap_buffer = new Sample[wrap_buffer_size];
2360 chan.capture_wrap_buffer = new Sample[wrap_buffer_size];
2362 channels.push_back (chan);
2364 _n_channels = channels.size();
2370 DiskStream::remove_channel ()
2372 if (channels.size() > 1) {
2373 /* XXX need to take lock??? */
2374 ChannelInfo & chan = channels.back();
2375 destroy_channel (chan);
2376 channels.pop_back();
2378 _n_channels = channels.size();
2386 DiskStream::playback_buffer_load () const
2388 return (float) ((double) channels.front().playback_buf->read_space()/
2389 (double) channels.front().playback_buf->bufsize());
2393 DiskStream::capture_buffer_load () const
2395 return (float) ((double) channels.front().capture_buf->write_space()/
2396 (double) channels.front().capture_buf->bufsize());
2400 DiskStream::set_loop (Location *location)
2403 if (location->start() >= location->end()) {
2404 error << string_compose(_("Location \"%1\" not valid for track loop (start >= end)"), location->name()) << endl;
2409 loop_location = location;
2411 LoopSet (location); /* EMIT SIGNAL */
2416 DiskStream::get_capture_start_frame (uint32_t n)
2418 LockMonitor lm (capture_info_lock, __LINE__, __FILE__);
2420 if (capture_info.size() > n) {
2421 return capture_info[n]->start;
2424 return capture_start_frame;
2429 DiskStream::get_captured_frames (uint32_t n)
2431 LockMonitor lm (capture_info_lock, __LINE__, __FILE__);
2433 if (capture_info.size() > n) {
2434 return capture_info[n]->frames;
2437 return capture_captured;
2442 DiskStream::punch_in ()
2447 DiskStream::punch_out ()
2452 DiskStream::use_pending_capture_data (XMLNode& node)
2454 const XMLProperty* prop;
2455 XMLNodeList nlist = node.children();
2456 XMLNodeIterator niter;
2458 FileSource* first_fs = 0;
2459 AudioRegion::SourceList pending_sources;
2460 jack_nframes_t position;
2462 if ((prop = node.property (X_("at"))) == 0) {
2466 if (sscanf (prop->value().c_str(), "%" PRIu32, &position) != 1) {
2470 for (niter = nlist.begin(); niter != nlist.end(); ++niter) {
2471 if ((*niter)->name() == X_("file")) {
2473 if ((prop = (*niter)->property (X_("path"))) == 0) {
2478 fs = new FileSource (prop->value(), _session.frame_rate(), true, Config->get_native_file_data_format());
2481 catch (failed_constructor& err) {
2482 error << string_compose (_("%1: cannot restore pending capture source file %2"),
2483 _name, prop->value())
2488 pending_sources.push_back (fs);
2490 if (first_fs == 0) {
2494 fs->set_captured_for (_name);
2498 if (pending_sources.size() == 0) {
2499 /* nothing can be done */
2503 if (pending_sources.size() != _n_channels) {
2504 error << string_compose (_("%1: incorrect number of pending sources listed - ignoring them all"), _name)
2509 AudioRegion* region;
2512 region = new AudioRegion (pending_sources, 0, first_fs->length(),
2513 region_name_from_path (first_fs->name()),
2514 0, AudioRegion::Flag (AudioRegion::DefaultFlags|AudioRegion::Automatic|AudioRegion::WholeFile));
2516 region->special_set_position (0);
2519 catch (failed_constructor& err) {
2520 error << string_compose (_("%1: cannot create whole-file region from pending capture sources"),
2528 region = new AudioRegion (pending_sources, 0, first_fs->length(), region_name_from_path (first_fs->name()));
2531 catch (failed_constructor& err) {
2532 error << string_compose (_("%1: cannot create region from pending capture sources"),
2539 _playlist->add_region (*region, position);
2545 DiskStream::set_roll_delay (jack_nframes_t nframes)
2547 _roll_delay = nframes;
2551 DiskStream::set_destructive (bool yn)
2553 if (yn != destructive()) {
2554 reset_write_sources (true, true);
2556 _flags |= Destructive;
2558 _flags &= ~Destructive;