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-rw-r--r--libs/ardour/source.cc777
1 files changed, 2 insertions, 775 deletions
diff --git a/libs/ardour/source.cc b/libs/ardour/source.cc
index 7d790a036d..0d32ea4a21 100644
--- a/libs/ardour/source.cc
+++ b/libs/ardour/source.cc
@@ -42,35 +42,18 @@ using std::max;
using namespace ARDOUR;
-sigc::signal<void,Source *> Source::SourceCreated;
-pthread_t Source::peak_thread;
-bool Source::have_peak_thread = false;
-vector<Source*> Source::pending_peak_sources;
-Glib::StaticMutex Source::pending_peak_sources_lock = GLIBMM_STATIC_MUTEX_INIT;
-int Source::peak_request_pipe[2];
-
-bool Source::_build_missing_peakfiles = false;
-bool Source::_build_peakfiles = false;
-
-Source::Source (bool announce)
+Source::Source (string name)
{
+ _name = name;
_id = ARDOUR::new_id();
_use_cnt = 0;
- _peaks_built = false;
- next_peak_clear_should_notify = true;
_timestamp = 0;
- _read_data_count = 0;
- _write_data_count = 0;
}
Source::Source (const XMLNode& node)
{
_use_cnt = 0;
- _peaks_built = false;
- next_peak_clear_should_notify = true;
_timestamp = 0;
- _read_data_count = 0;
- _write_data_count = 0;
if (set_state (node)) {
throw failed_constructor();
@@ -96,10 +79,6 @@ Source::get_state ()
node->add_property ("timestamp", buf);
}
- if (_captured_for.length()) {
- node->add_property ("captured-for", _captured_for);
- }
-
return *node;
}
@@ -124,735 +103,10 @@ Source::set_state (const XMLNode& node)
sscanf (prop->value().c_str(), "%ld", &_timestamp);
}
- if ((prop = node.property ("captured-for")) != 0) {
- _captured_for = prop->value();
- }
-
- return 0;
-}
-
-/***********************************************************************
- PEAK FILE STUFF
- ***********************************************************************/
-
-void*
-Source::peak_thread_work (void* arg)
-{
- PBD::ThreadCreated (pthread_self(), X_("Peak"));
- struct pollfd pfd[1];
-
- Glib::Mutex::Lock lm (pending_peak_sources_lock);
-
- while (true) {
-
- pfd[0].fd = peak_request_pipe[0];
- pfd[0].events = POLLIN|POLLERR|POLLHUP;
-
- pending_peak_sources_lock.unlock();
-
- if (poll (pfd, 1, -1) < 0) {
-
- if (errno == EINTR) {
- pending_peak_sources_lock.lock();
- continue;
- }
-
- error << string_compose (_("poll on peak request pipe failed (%1)"),
- strerror (errno))
- << endmsg;
- break;
- }
-
- if (pfd[0].revents & ~POLLIN) {
- error << _("Error on peak thread request pipe") << endmsg;
- break;
- }
-
- if (pfd[0].revents & POLLIN) {
-
- char req;
-
- /* empty the pipe of all current requests */
-
- while (1) {
- size_t nread = ::read (peak_request_pipe[0], &req, sizeof (req));
-
- if (nread == 1) {
- switch ((PeakRequest::Type) req) {
-
- case PeakRequest::Build:
- break;
-
- case PeakRequest::Quit:
- pthread_exit_pbd (0);
- /*NOTREACHED*/
- break;
-
- default:
- break;
- }
-
- } else if (nread == 0) {
- break;
- } else if (errno == EAGAIN) {
- break;
- } else {
- fatal << _("Error reading from peak request pipe") << endmsg;
- /*NOTREACHED*/
- }
- }
- }
-
- pending_peak_sources_lock.lock();
-
- while (!pending_peak_sources.empty()) {
-
- Source* s = pending_peak_sources.front();
- pending_peak_sources.erase (pending_peak_sources.begin());
-
- pending_peak_sources_lock.unlock();
- s->build_peaks();
- pending_peak_sources_lock.lock();
- }
- }
-
- pthread_exit_pbd (0);
- /*NOTREACHED*/
- return 0;
-}
-
-int
-Source::start_peak_thread ()
-{
- if (!_build_peakfiles) {
- return 0;
- }
-
- if (pipe (peak_request_pipe)) {
- error << string_compose(_("Cannot create transport request signal pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
-
- if (fcntl (peak_request_pipe[0], F_SETFL, O_NONBLOCK)) {
- error << string_compose(_("UI: cannot set O_NONBLOCK on peak request pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
-
- if (fcntl (peak_request_pipe[1], F_SETFL, O_NONBLOCK)) {
- error << string_compose(_("UI: cannot set O_NONBLOCK on peak request pipe (%1)"), strerror (errno)) << endmsg;
- return -1;
- }
-
- if (pthread_create_and_store ("peak file builder", &peak_thread, 0, peak_thread_work, 0)) {
- error << _("Source: could not create peak thread") << endmsg;
- return -1;
- }
-
- have_peak_thread = true;
return 0;
}
void
-Source::stop_peak_thread ()
-{
- if (!have_peak_thread) {
- return;
- }
-
- void* status;
-
- char c = (char) PeakRequest::Quit;
- ::write (peak_request_pipe[1], &c, 1);
- pthread_join (peak_thread, &status);
-}
-
-void
-Source::queue_for_peaks (Source& source)
-{
- if (have_peak_thread) {
-
- Glib::Mutex::Lock lm (pending_peak_sources_lock);
-
- source.next_peak_clear_should_notify = true;
-
- if (find (pending_peak_sources.begin(),
- pending_peak_sources.end(),
- &source) == pending_peak_sources.end()) {
- pending_peak_sources.push_back (&source);
- }
-
- char c = (char) PeakRequest::Build;
- ::write (peak_request_pipe[1], &c, 1);
- }
-}
-
-void Source::clear_queue_for_peaks ()
-{
- /* this is done to cancel a group of running peak builds */
- if (have_peak_thread) {
- Glib::Mutex::Lock lm (pending_peak_sources_lock);
- pending_peak_sources.clear ();
- }
-}
-
-
-bool
-Source::peaks_ready (sigc::slot<void> the_slot, sigc::connection& conn) const
-{
- bool ret;
- Glib::Mutex::Lock lm (_lock);
-
- /* check to see if the peak data is ready. if not
- connect the slot while still holding the lock.
- */
-
- if (!(ret = _peaks_built)) {
- conn = PeaksReady.connect (the_slot);
- }
-
- return ret;
-}
-
-int
-Source::rename_peakfile (string newpath)
-{
- /* caller must hold _lock */
-
- string oldpath = peakpath;
-
- if (access (oldpath.c_str(), F_OK) == 0) {
- if (rename (oldpath.c_str(), newpath.c_str()) != 0) {
- error << string_compose (_("cannot rename peakfile for %1 from %2 to %3 (%4)"), _name, oldpath, newpath, strerror (errno)) << endmsg;
- return -1;
- }
- }
-
- peakpath = newpath;
-
- return 0;
-}
-
-int
-Source::initialize_peakfile (bool newfile, string audio_path)
-{
- struct stat statbuf;
-
- peakpath = peak_path (audio_path);
-
- if (newfile) {
-
- if (!_build_peakfiles) {
- return 0;
- }
-
- _peaks_built = false;
-
- } else {
-
- if (stat (peakpath.c_str(), &statbuf)) {
- if (errno != ENOENT) {
- /* it exists in the peaks dir, but there is some kind of error */
-
- error << string_compose(_("Source: cannot stat peakfile \"%1\""), peakpath) << endmsg;
- return -1;
- }
-
- } else {
-
- /* we found it in the peaks dir */
- }
-
- if (statbuf.st_size == 0) {
- _peaks_built = false;
- } else {
- // Check if the audio file has changed since the peakfile was built.
- struct stat stat_file;
- int err = stat (audio_path.c_str(), &stat_file);
-
- if (!err && stat_file.st_mtime > statbuf.st_mtime){
- _peaks_built = false;
- } else {
- _peaks_built = true;
- }
- }
- }
-
- if (!newfile && !_peaks_built && _build_missing_peakfiles && _build_peakfiles) {
- build_peaks_from_scratch ();
- }
-
- return 0;
-}
-
-int
-Source::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t start, jack_nframes_t cnt, double samples_per_visual_peak) const
-{
- Glib::Mutex::Lock lm (_lock);
- double scale;
- double expected_peaks;
- PeakData::PeakDatum xmax;
- PeakData::PeakDatum xmin;
- int32_t to_read;
- uint32_t nread;
- jack_nframes_t zero_fill = 0;
- int ret = -1;
- PeakData* staging = 0;
- Sample* raw_staging = 0;
- char * workbuf = 0;
- int peakfile = -1;
-
- expected_peaks = (cnt / (double) frames_per_peak);
- scale = npeaks/expected_peaks;
-
-#if 0
- cerr << "======>RP: npeaks = " << npeaks
- << " start = " << start
- << " cnt = " << cnt
- << " len = " << _length
- << " samples_per_visual_peak =" << samples_per_visual_peak
- << " expected was " << expected_peaks << " ... scale = " << scale
- << " PD ptr = " << peaks
- <<endl;
-
-#endif
-
- /* fix for near-end-of-file conditions */
-
- if (cnt > _length - start) {
- // cerr << "too close to end @ " << _length << " given " << start << " + " << cnt << endl;
- cnt = _length - start;
- jack_nframes_t old = npeaks;
- npeaks = min ((jack_nframes_t) floor (cnt / samples_per_visual_peak), npeaks);
- zero_fill = old - npeaks;
- }
-
- // cerr << "actual npeaks = " << npeaks << " zf = " << zero_fill << endl;
-
- if (npeaks == cnt) {
-
- // cerr << "RAW DATA\n";
-
- /* no scaling at all, just get the sample data and duplicate it for
- both max and min peak values.
- */
-
- Sample* raw_staging = new Sample[cnt];
- workbuf = new char[cnt*4];
-
- if (read_unlocked (raw_staging, start, cnt, workbuf) != cnt) {
- error << _("cannot read sample data for unscaled peak computation") << endmsg;
- return -1;
- }
-
- for (jack_nframes_t i = 0; i < npeaks; ++i) {
- peaks[i].max = raw_staging[i];
- peaks[i].min = raw_staging[i];
- }
-
- delete [] raw_staging;
- delete [] workbuf;
- return 0;
- }
-
- if (scale == 1.0) {
-
- off_t first_peak_byte = (start / frames_per_peak) * sizeof (PeakData);
-
- /* open, read, close */
-
- if ((peakfile = ::open (peakpath.c_str(), O_RDWR|O_CREAT, 0664)) < 0) {
- error << string_compose(_("Source: cannot open peakpath \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
- return -1;
- }
-
- // cerr << "DIRECT PEAKS\n";
-
- nread = ::pread (peakfile, peaks, sizeof (PeakData)* npeaks, first_peak_byte);
- close (peakfile);
-
- if (nread != sizeof (PeakData) * npeaks) {
- cerr << "Source["
- << _name
- << "]: cannot read peaks from peakfile! (read only "
- << nread
- << " not "
- << npeaks
- << "at sample "
- << start
- << " = byte "
- << first_peak_byte
- << ')'
- << endl;
- return -1;
- }
-
- if (zero_fill) {
- memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
- }
-
- return 0;
- }
-
-
- jack_nframes_t tnp;
-
- if (scale < 1.0) {
-
- // cerr << "DOWNSAMPLE\n";
-
- /* the caller wants:
-
- - more frames-per-peak (lower resolution) than the peakfile, or to put it another way,
- - less peaks than the peakfile holds for the same range
-
- So, read a block into a staging area, and then downsample from there.
-
- to avoid confusion, I'll refer to the requested peaks as visual_peaks and the peakfile peaks as stored_peaks
- */
-
- const uint32_t chunksize = (uint32_t) min (expected_peaks, 4096.0);
-
- staging = new PeakData[chunksize];
-
- /* compute the rounded up frame position */
-
- jack_nframes_t current_frame = start;
- jack_nframes_t current_stored_peak = (jack_nframes_t) ceil (current_frame / (double) frames_per_peak);
- uint32_t next_visual_peak = (uint32_t) ceil (current_frame / samples_per_visual_peak);
- double next_visual_peak_frame = next_visual_peak * samples_per_visual_peak;
- uint32_t stored_peak_before_next_visual_peak = (jack_nframes_t) next_visual_peak_frame / frames_per_peak;
- uint32_t nvisual_peaks = 0;
- uint32_t stored_peaks_read = 0;
- uint32_t i = 0;
-
- /* handle the case where the initial visual peak is on a pixel boundary */
-
- current_stored_peak = min (current_stored_peak, stored_peak_before_next_visual_peak);
-
- /* open ... close during out: handling */
-
- if ((peakfile = ::open (peakpath.c_str(), O_RDWR|O_CREAT, 0664)) < 0) {
- error << string_compose(_("Source: cannot open peakpath \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
- return 0;
- }
-
- while (nvisual_peaks < npeaks) {
-
- if (i == stored_peaks_read) {
-
- uint32_t start_byte = current_stored_peak * sizeof(PeakData);
- tnp = min ((_length/frames_per_peak - current_stored_peak), (jack_nframes_t) expected_peaks);
- to_read = min (chunksize, tnp);
-
- off_t fend = lseek (peakfile, 0, SEEK_END);
-
- if ((nread = ::pread (peakfile, staging, sizeof (PeakData) * to_read, start_byte))
- != sizeof (PeakData) * to_read) {
- cerr << "Source["
- << _name
- << "]: cannot read peak data from peakfile ("
- << (nread / sizeof(PeakData))
- << " peaks instead of "
- << to_read
- << ") ("
- << strerror (errno)
- << ')'
- << " at start_byte = " << start_byte
- << " _length = " << _length << " versus len = " << fend
- << " expected maxpeaks = " << (_length - current_frame)/frames_per_peak
- << " npeaks was " << npeaks
- << endl;
- goto out;
- }
-
- i = 0;
- stored_peaks_read = nread / sizeof(PeakData);
- }
-
- xmax = -1.0;
- xmin = 1.0;
-
- while ((i < stored_peaks_read) && (current_stored_peak <= stored_peak_before_next_visual_peak)) {
-
- xmax = max (xmax, staging[i].max);
- xmin = min (xmin, staging[i].min);
- ++i;
- ++current_stored_peak;
- --expected_peaks;
- }
-
- peaks[nvisual_peaks].max = xmax;
- peaks[nvisual_peaks].min = xmin;
- ++nvisual_peaks;
- ++next_visual_peak;
-
- //next_visual_peak_frame = min ((next_visual_peak * samples_per_visual_peak), (next_visual_peak_frame+samples_per_visual_peak) );
- next_visual_peak_frame = min ((double) start+cnt, (next_visual_peak_frame+samples_per_visual_peak) );
- stored_peak_before_next_visual_peak = (uint32_t) next_visual_peak_frame / frames_per_peak;
- }
-
- if (zero_fill) {
- memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
- }
-
- ret = 0;
-
- } else {
-
- // cerr << "UPSAMPLE\n";
-
- /* the caller wants
-
- - less frames-per-peak (more resolution)
- - more peaks than stored in the Peakfile
-
- So, fetch data from the raw source, and generate peak
- data on the fly.
- */
-
- jack_nframes_t frames_read = 0;
- jack_nframes_t current_frame = start;
- jack_nframes_t i = 0;
- jack_nframes_t nvisual_peaks = 0;
- jack_nframes_t chunksize = (jack_nframes_t) min (cnt, (jack_nframes_t) 4096);
- raw_staging = new Sample[chunksize];
- workbuf = new char[chunksize *4];
-
- jack_nframes_t frame_pos = start;
- double pixel_pos = floor (frame_pos / samples_per_visual_peak);
- double next_pixel_pos = ceil (frame_pos / samples_per_visual_peak);
- double pixels_per_frame = 1.0 / samples_per_visual_peak;
-
- xmin = 1.0;
- xmax = -1.0;
-
- while (nvisual_peaks < npeaks) {
-
- if (i == frames_read) {
-
- to_read = min (chunksize, (_length - current_frame));
-
- if ((frames_read = read_unlocked (raw_staging, current_frame, to_read, workbuf)) < 0) {
- error << string_compose(_("Source[%1]: peak read - cannot read %2 samples at offset %3")
- , _name, to_read, current_frame)
- << endmsg;
- goto out;
- }
-
- i = 0;
- }
-
- xmax = max (xmax, raw_staging[i]);
- xmin = min (xmin, raw_staging[i]);
- ++i;
- ++current_frame;
- pixel_pos += pixels_per_frame;
-
- if (pixel_pos >= next_pixel_pos) {
-
- peaks[nvisual_peaks].max = xmax;
- peaks[nvisual_peaks].min = xmin;
- ++nvisual_peaks;
- xmin = 1.0;
- xmax = -1.0;
-
- next_pixel_pos = ceil (pixel_pos + 0.5);
- }
- }
-
- if (zero_fill) {
- memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
- }
-
- ret = 0;
- }
-
- out:
- if (peakfile >= 0) {
- close (peakfile);
- }
-
- if (staging) {
- delete [] staging;
- }
-
- if (raw_staging) {
- delete [] raw_staging;
- }
-
- if (workbuf) {
- delete [] workbuf;
- }
-
- return ret;
-}
-
-#undef DEBUG_PEAK_BUILD
-
-int
-Source::build_peaks ()
-{
- vector<PeakBuildRecord*> built;
- int status = -1;
- bool pr_signal = false;
- list<PeakBuildRecord*> copy;
-
- {
- Glib::Mutex::Lock lm (_lock);
- copy = pending_peak_builds;
- pending_peak_builds.clear ();
- }
-
-#ifdef DEBUG_PEAK_BUILD
- cerr << "build peaks with " << copy.size() << " requests pending\n";
-#endif
-
- for (list<PeakBuildRecord *>::iterator i = copy.begin(); i != copy.end(); ++i) {
-
- if ((status = do_build_peak ((*i)->frame, (*i)->cnt)) != 0) {
- unlink (peakpath.c_str());
- break;
- }
- built.push_back (new PeakBuildRecord (*(*i)));
- delete *i;
- }
-
- {
- Glib::Mutex::Lock lm (_lock);
-
- if (status == 0) {
- _peaks_built = true;
-
- if (next_peak_clear_should_notify) {
- next_peak_clear_should_notify = false;
- pr_signal = true;
- }
- }
- }
-
- if (status == 0) {
- for (vector<PeakBuildRecord *>::iterator i = built.begin(); i != built.end(); ++i) {
- PeakRangeReady ((*i)->frame, (*i)->cnt); /* EMIT SIGNAL */
- delete *i;
- }
-
- if (pr_signal) {
- PeaksReady (); /* EMIT SIGNAL */
- }
- }
-
- return status;
-}
-
-int
-Source::do_build_peak (jack_nframes_t first_frame, jack_nframes_t cnt)
-{
- jack_nframes_t current_frame;
- Sample buf[frames_per_peak];
- Sample xmin, xmax;
- uint32_t peaki;
- PeakData* peakbuf;
- char * workbuf = 0;
- jack_nframes_t frames_read;
- jack_nframes_t frames_to_read;
- off_t first_peak_byte;
- int peakfile = -1;
- int ret = -1;
-
-#ifdef DEBUG_PEAK_BUILD
- cerr << pthread_self() << ": " << _name << ": building peaks for " << first_frame << " to " << first_frame + cnt - 1 << endl;
-#endif
-
- first_peak_byte = (first_frame / frames_per_peak) * sizeof (PeakData);
-
-#ifdef DEBUG_PEAK_BUILD
- cerr << "seeking to " << first_peak_byte << " before writing new peak data\n";
-#endif
-
- current_frame = first_frame;
- peakbuf = new PeakData[(cnt/frames_per_peak)+1];
- peaki = 0;
-
- workbuf = new char[max(frames_per_peak, cnt) * 4];
-
- if ((peakfile = ::open (peakpath.c_str(), O_RDWR|O_CREAT, 0664)) < 0) {
- error << string_compose(_("Source: cannot open peakpath \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
- return -1;
- }
-
- while (cnt) {
-
- frames_to_read = min (frames_per_peak, cnt);
-
- if ((frames_read = read_unlocked (buf, current_frame, frames_to_read, workbuf)) != frames_to_read) {
- error << string_compose(_("%1: could not write read raw data for peak computation (%2)"), _name, strerror (errno)) << endmsg;
- goto out;
- }
-
- xmin = buf[0];
- xmax = buf[0];
-
- for (jack_nframes_t n = 1; n < frames_read; ++n) {
- xmax = max (xmax, buf[n]);
- xmin = min (xmin, buf[n]);
-
-// if (current_frame < frames_read) {
-// cerr << "sample = " << buf[n] << " max = " << xmax << " min = " << xmin << " max of 2 = " << max (xmax, buf[n]) << endl;
-// }
- }
-
- peakbuf[peaki].max = xmax;
- peakbuf[peaki].min = xmin;
- peaki++;
-
- current_frame += frames_read;
- cnt -= frames_read;
- }
-
- if (::pwrite (peakfile, peakbuf, sizeof (PeakData) * peaki, first_peak_byte) != (ssize_t) (sizeof (PeakData) * peaki)) {
- error << string_compose(_("%1: could not write peak file data (%2)"), _name, strerror (errno)) << endmsg;
- goto out;
- }
-
- ret = 0;
-
- out:
- delete [] peakbuf;
- if (peakfile >= 0) {
- close (peakfile);
- }
- if (workbuf)
- delete [] workbuf;
- return ret;
-}
-
-void
-Source::build_peaks_from_scratch ()
-{
- Glib::Mutex::Lock lp (_lock);
-
- next_peak_clear_should_notify = true;
- pending_peak_builds.push_back (new PeakBuildRecord (0, _length));
- queue_for_peaks (*this);
-}
-
-bool
-Source::file_changed (string path)
-{
- struct stat stat_file;
- struct stat stat_peak;
-
- int e1 = stat (path.c_str(), &stat_file);
- int e2 = stat (peak_path(path).c_str(), &stat_peak);
-
- if (!e1 && !e2 && stat_file.st_mtime > stat_peak.st_mtime){
- return true;
- } else {
- return false;
- }
-}
-
-void
Source::use ()
{
_use_cnt++;
@@ -864,30 +118,3 @@ Source::release ()
if (_use_cnt) --_use_cnt;
}
-jack_nframes_t
-Source::available_peaks (double zoom_factor) const
-{
- int peakfile;
- off_t end;
-
- if (zoom_factor < frames_per_peak) {
- return length(); // peak data will come from the audio file
- }
-
- /* peak data comes from peakfile */
-
- if ((peakfile = ::open (peakpath.c_str(), O_RDONLY)) < 0) {
- error << string_compose(_("Source: cannot open peakpath \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
- return 0;
- }
-
- {
- Glib::Mutex::Lock lm (_lock);
- end = lseek (peakfile, 0, SEEK_END);
- }
-
- close (peakfile);
-
- return (end/sizeof(PeakData)) * frames_per_peak;
-}
-
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-22 11:49:23 +0000