#include "pbd/pthread_utils.h"
#include "ardour/audiosource.h"
+#include "ardour/audio_diskstream.h"
#include "ardour/cycle_timer.h"
#include "ardour/session.h"
#include "ardour/transient_detector.h"
using namespace std;
using namespace ARDOUR;
using namespace PBD;
-using Glib::ustring;
+Glib::StaticMutex AudioSource::_level_buffer_lock = GLIBMM_STATIC_MUTEX_INIT;
+vector<boost::shared_ptr<Sample> > AudioSource::_mixdown_buffers;
+vector<boost::shared_ptr<gain_t> > AudioSource::_gain_buffers;
+size_t AudioSource::_working_buffers_size = 0;
bool AudioSource::_build_missing_peakfiles = false;
/** true if we want peakfiles (e.g. if we are displaying a GUI) */
#define _FPP 256
-AudioSource::AudioSource (Session& s, ustring name)
+AudioSource::AudioSource (Session& s, string name)
: Source (s, DataType::AUDIO, name)
, _length (0)
{
_peaks_built = false;
_peak_byte_max = 0;
- peakfile = -1;
- _read_data_count = 0;
- _write_data_count = 0;
+ _peakfile_descriptor = 0;
peak_leftover_cnt = 0;
peak_leftover_size = 0;
peak_leftovers = 0;
_peaks_built = false;
_peak_byte_max = 0;
- peakfile = -1;
- _read_data_count = 0;
- _write_data_count = 0;
+ _peakfile_descriptor = 0;
peak_leftover_cnt = 0;
peak_leftover_size = 0;
peak_leftovers = 0;
cerr << "AudioSource destroyed with leftover peak data pending" << endl;
}
- if (peakfile >= 0) {
- ::close (peakfile);
- }
-
+ delete _peakfile_descriptor;
delete [] peak_leftovers;
}
return 0;
}
-sframes_t
-AudioSource::length (sframes_t /*pos*/) const
+bool
+AudioSource::empty () const
+{
+ return _length == 0;
+}
+
+framecnt_t
+AudioSource::length (framepos_t /*pos*/) const
{
return _length;
}
void
-AudioSource::update_length (sframes_t pos, sframes_t cnt)
+AudioSource::update_length (framepos_t pos, framecnt_t cnt)
{
if (pos + cnt > _length) {
_length = pos + cnt;
bool ret;
Glib::Mutex::Lock lm (_peaks_ready_lock);
- /* check to see if the peak data is ready. if not
- connect the slot while still holding the lock.
- */
-
if (!(ret = _peaks_built)) {
*connect_here_if_not = new ScopedConnection;
PeaksReady.connect (**connect_here_if_not, MISSING_INVALIDATOR, doThisWhenReady, event_loop);
}
int
-AudioSource::rename_peakfile (ustring newpath)
+AudioSource::rename_peakfile (string newpath)
{
/* caller must hold _lock */
- ustring oldpath = peakpath;
+ string oldpath = peakpath;
- if (access (oldpath.c_str(), F_OK) == 0) {
+ if (Glib::file_test (oldpath, Glib::FILE_TEST_EXISTS)) {
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;
}
int
-AudioSource::initialize_peakfile (bool newfile, ustring audio_path)
+AudioSource::initialize_peakfile (bool newfile, string audio_path)
{
struct stat statbuf;
/* we found it in the peaks dir, so check it out */
- if (statbuf.st_size == 0 || ((nframes_t) statbuf.st_size < ((length(_timeline_position) / _FPP) * sizeof (PeakData)))) {
+ if (statbuf.st_size == 0 || (statbuf.st_size < (off_t) ((length(_timeline_position) / _FPP) * sizeof (PeakData)))) {
// empty
_peaks_built = false;
} else {
int err = stat (audio_path.c_str(), &stat_file);
if (err) {
- _peaks_built = false;
- _peak_byte_max = 0;
+
+ /* no audio path - nested source or we can't
+ read it or ... whatever, use the peakfile as-is.
+ */
+
+ _peaks_built = true;
+ _peak_byte_max = statbuf.st_size;
+
} else {
/* allow 6 seconds slop on checking peak vs. file times because of various
framecnt_t
AudioSource::read (Sample *dst, framepos_t start, framecnt_t cnt, int /*channel*/) const
{
+ assert (cnt >= 0);
+
Glib::Mutex::Lock lm (_lock);
return read_unlocked (dst, start, cnt);
}
int ret = -1;
PeakData* staging = 0;
Sample* raw_staging = 0;
- int _peakfile = -1;
+
+ FdFileDescriptor* peakfile_descriptor = new FdFileDescriptor (peakpath, false, 0664);
+ int peakfile_fd = -1;
expected_peaks = (cnt / (double) samples_per_file_peak);
scale = npeaks/expected_peaks;
peaks[i].min = raw_staging[i];
}
+ delete peakfile_descriptor;
delete [] raw_staging;
return 0;
}
/* open, read, close */
- if ((_peakfile = ::open (peakpath.c_str(), O_RDONLY, 0664)) < 0) {
+ if ((peakfile_fd = peakfile_descriptor->allocate ()) < 0) {
error << string_compose(_("AudioSource: cannot open peakpath (a) \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
+ delete peakfile_descriptor;
return -1;
}
cerr << "DIRECT PEAKS\n";
#endif
- nread = ::pread (_peakfile, peaks, sizeof (PeakData)* npeaks, first_peak_byte);
- close (_peakfile);
+ nread = ::pread (peakfile_fd, peaks, sizeof (PeakData)* npeaks, first_peak_byte);
+ delete peakfile_descriptor;
if (nread != sizeof (PeakData) * npeaks) {
cerr << "AudioSource["
<< first_peak_byte
<< ')'
<< endl;
+ delete peakfile_descriptor;
return -1;
}
memset (&peaks[npeaks], 0, sizeof (PeakData) * zero_fill);
}
+ delete peakfile_descriptor;
return 0;
}
*/
const framecnt_t chunksize = (framecnt_t) min (expected_peaks, 65536.0);
-
+
staging = new PeakData[chunksize];
/* compute the rounded up frame position */
/* open ... close during out: handling */
- if ((_peakfile = ::open (peakpath.c_str(), O_RDONLY, 0664)) < 0) {
+ if ((peakfile_fd = peakfile_descriptor->allocate ()) < 0) {
error << string_compose(_("AudioSource: cannot open peakpath (b) \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
+ delete peakfile_descriptor;
delete [] staging;
return 0;
}
cerr << "read " << sizeof (PeakData) * to_read << " from peakfile @ " << start_byte << endl;
#endif
- if ((nread = ::pread (_peakfile, staging, sizeof (PeakData) * to_read, start_byte))
+ if ((nread = ::pread (peakfile_fd, staging, sizeof (PeakData) * to_read, start_byte))
!= sizeof (PeakData) * to_read) {
- off_t fend = lseek (_peakfile, 0, SEEK_END);
+ off_t fend = lseek (peakfile_fd, 0, SEEK_END);
cerr << "AudioSource["
<< _name
adjusting zero_fill and npeaks and then breaking out of
this loop early
*/
-
+
memset (raw_staging, 0, sizeof (Sample) * chunksize);
-
+
} else {
-
+
to_read = min (chunksize, (_length - current_frame));
-
-
+
+
if ((frames_read = read_unlocked (raw_staging, current_frame, to_read)) == 0) {
error << string_compose(_("AudioSource[%1]: peak read - cannot read %2 samples at offset %3 of %4 (%5)"),
_name, to_read, current_frame, _length, strerror (errno))
goto out;
}
}
-
+
i = 0;
}
}
out:
- if (_peakfile >= 0) {
- close (_peakfile);
- }
+ delete peakfile_descriptor;
delete [] staging;
delete [] raw_staging;
goto out;
}
- framepos_t current_frame = 0;
+ framecnt_t current_frame = 0;
framecnt_t cnt = _length;
_peaks_built = false;
framecnt_t frames_to_read = min (bufsize, cnt);
framecnt_t frames_read;
-
+
if ((frames_read = read_unlocked (buf, current_frame, frames_to_read)) != frames_to_read) {
error << string_compose(_("%1: could not write read raw data for peak computation (%2)"), _name, strerror (errno)) << endmsg;
done_with_peakfile_writes (false);
}
done_with_peakfile_writes ((cnt == 0));
- }
-
- {
- Glib::Mutex::Lock lm (_peaks_ready_lock);
-
- if (_peaks_built) {
- PeaksReady (); /* EMIT SIGNAL */
+ if (cnt == 0) {
ret = 0;
}
}
int
AudioSource::prepare_for_peakfile_writes ()
{
- if ((peakfile = ::open (peakpath.c_str(), O_RDWR|O_CREAT, 0664)) < 0) {
+ _peakfile_descriptor = new FdFileDescriptor (peakpath, true, 0664);
+ if ((_peakfile_fd = _peakfile_descriptor->allocate()) < 0) {
error << string_compose(_("AudioSource: cannot open peakpath (c) \"%1\" (%2)"), peakpath, strerror (errno)) << endmsg;
return -1;
}
}
if (done) {
+ Glib::Mutex::Lock lm (_peaks_ready_lock);
_peaks_built = true;
+ PeaksReady (); /* EMIT SIGNAL */
}
- if (peakfile >= 0) {
- close (peakfile);
- peakfile = -1;
- }
+ delete _peakfile_descriptor;
+ _peakfile_descriptor = 0;
}
+/** @param first_frame Offset from the source start of the first frame to process */
int
-AudioSource::compute_and_write_peaks (Sample* buf, framepos_t first_frame, framecnt_t cnt,
+AudioSource::compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt,
bool force, bool intermediate_peaks_ready)
{
return compute_and_write_peaks (buf, first_frame, cnt, force, intermediate_peaks_ready, _FPP);
}
int
-AudioSource::compute_and_write_peaks (Sample* buf, framepos_t first_frame, framecnt_t cnt,
+AudioSource::compute_and_write_peaks (Sample* buf, framecnt_t first_frame, framecnt_t cnt,
bool force, bool intermediate_peaks_ready, framecnt_t fpp)
{
Sample* buf2 = 0;
const size_t blocksize = (128 * 1024);
off_t first_peak_byte;
- if (peakfile < 0) {
+ if (_peakfile_descriptor == 0) {
prepare_for_peakfile_writes ();
}
off_t byte = (peak_leftover_frame / fpp) * sizeof (PeakData);
- if (::pwrite (peakfile, &x, sizeof (PeakData), byte) != sizeof (PeakData)) {
+ if (::pwrite (_peakfile_fd, &x, sizeof (PeakData), byte) != sizeof (PeakData)) {
error << string_compose(_("%1: could not write peak file data (%2)"), _name, strerror (errno)) << endmsg;
goto out;
}
less than BLOCKSIZE bytes. only call ftruncate if we'll make the file larger.
*/
- off_t endpos = lseek (peakfile, 0, SEEK_END);
+ off_t endpos = lseek (_peakfile_fd, 0, SEEK_END);
off_t target_length = blocksize * ((first_peak_byte + blocksize + 1) / blocksize);
if (endpos < target_length) {
- ftruncate (peakfile, target_length);
+ (void) ftruncate (_peakfile_fd, target_length);
/* error doesn't actually matter though, so continue on without testing */
}
}
- if (::pwrite (peakfile, peakbuf, sizeof (PeakData) * peaks_computed, first_peak_byte) != (ssize_t) (sizeof (PeakData) * peaks_computed)) {
+ if (::pwrite (_peakfile_fd, peakbuf, sizeof (PeakData) * peaks_computed, first_peak_byte) != (ssize_t) (sizeof (PeakData) * peaks_computed)) {
error << string_compose(_("%1: could not write peak file data (%2)"), _name, strerror (errno)) << endmsg;
goto out;
}
void
AudioSource::truncate_peakfile ()
{
- if (peakfile < 0) {
+ if (_peakfile_descriptor == 0) {
error << string_compose (_("programming error: %1"), "AudioSource::truncate_peakfile() called without open peakfile descriptor")
<< endmsg;
return;
/* truncate the peakfile down to its natural length if necessary */
- off_t end = lseek (peakfile, 0, SEEK_END);
+ off_t end = lseek (_peakfile_fd, 0, SEEK_END);
if (end > _peak_byte_max) {
- ftruncate (peakfile, _peak_byte_max);
+ (void) ftruncate (_peakfile_fd, _peak_byte_max);
}
}
return (end/sizeof(PeakData)) * _FPP;
}
+void
+AudioSource::mark_streaming_write_completed ()
+{
+ Glib::Mutex::Lock lm (_peaks_ready_lock);
+
+ if (_peaks_built) {
+ PeaksReady (); /* EMIT SIGNAL */
+ }
+}
+
+void
+AudioSource::allocate_working_buffers (framecnt_t framerate)
+{
+ Glib::Mutex::Lock lm (_level_buffer_lock);
+
+
+ /* Note: we don't need any buffers allocated until
+ a level 1 audiosource is created, at which
+ time we'll call ::ensure_buffers_for_level()
+ with the right value and do the right thing.
+ */
+
+ if (!_mixdown_buffers.empty()) {
+ ensure_buffers_for_level_locked ( _mixdown_buffers.size(), framerate);
+ }
+}
+
+void
+AudioSource::ensure_buffers_for_level (uint32_t level, framecnt_t frame_rate)
+{
+ Glib::Mutex::Lock lm (_level_buffer_lock);
+ ensure_buffers_for_level_locked (level, frame_rate);
+}
+
+void
+AudioSource::ensure_buffers_for_level_locked (uint32_t level, framecnt_t frame_rate)
+{
+ framecnt_t nframes = (framecnt_t) floor (Config->get_audio_playback_buffer_seconds() * frame_rate);
+
+ _mixdown_buffers.clear ();
+ _gain_buffers.clear ();
+
+ while (_mixdown_buffers.size() < level) {
+ _mixdown_buffers.push_back (boost::shared_ptr<Sample> (new Sample[nframes]));
+ _gain_buffers.push_back (boost::shared_ptr<gain_t> (new gain_t[nframes]));
+ }
+}
projects / ardour.git / blobdiff