diff options
Diffstat (limited to 'libs/ardour/audiosource.cc')
| -rw-r--r-- | libs/ardour/audiosource.cc | 77 |
1 files changed, 47 insertions, 30 deletions
diff --git a/libs/ardour/audiosource.cc b/libs/ardour/audiosource.cc index a8a7af6f9c..9aee818588 100644 --- a/libs/ardour/audiosource.cc +++ b/libs/ardour/audiosource.cc @@ -23,6 +23,7 @@ #include <fcntl.h> #include <poll.h> #include <float.h> +#include <utime.h> #include <cerrno> #include <ctime> #include <cmath> @@ -296,6 +297,23 @@ AudioSource::peaks_ready (sigc::slot<void> the_slot, sigc::connection& conn) con return ret; } +void +AudioSource::touch_peakfile () +{ + struct stat statbuf; + + if (stat (peakpath.c_str(), &statbuf) != 0 || statbuf.st_size == 0) { + return; + } + + struct utimbuf tbuf; + + tbuf.actime = statbuf.st_atime; + tbuf.modtime = time ((time_t) 0); + + utime (peakpath.c_str(), &tbuf); +} + int AudioSource::rename_peakfile (string newpath) { @@ -350,7 +368,6 @@ AudioSource::initialize_peakfile (bool newfile, string audio_path) error << string_compose(_("AudioSource: cannot stat peakfile \"%1\""), peakpath) << endmsg; return -1; } - } else { /* we found it in the peaks dir */ @@ -378,22 +395,22 @@ AudioSource::initialize_peakfile (bool newfile, string audio_path) return 0; } -jack_nframes_t -AudioSource::read (Sample *dst, jack_nframes_t start, jack_nframes_t cnt) const +nframes_t +AudioSource::read (Sample *dst, nframes_t start, nframes_t cnt) const { Glib::Mutex::Lock lm (_lock); return read_unlocked (dst, start, cnt); } -jack_nframes_t -AudioSource::write (Sample *dst, jack_nframes_t cnt) +nframes_t +AudioSource::write (Sample *dst, nframes_t cnt) { Glib::Mutex::Lock lm (_lock); return write_unlocked (dst, cnt); } int -AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t start, jack_nframes_t cnt, double samples_per_visual_peak) const +AudioSource::read_peaks (PeakData *peaks, nframes_t npeaks, nframes_t start, nframes_t cnt, double samples_per_visual_peak) const { Glib::Mutex::Lock lm (_lock); double scale; @@ -402,7 +419,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t PeakData::PeakDatum xmin; int32_t to_read; uint32_t nread; - jack_nframes_t zero_fill = 0; + nframes_t zero_fill = 0; int ret = -1; PeakData* staging = 0; Sample* raw_staging = 0; @@ -428,8 +445,8 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t 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); + nframes_t old = npeaks; + npeaks = min ((nframes_t) floor (cnt / samples_per_visual_peak), npeaks); zero_fill = old - npeaks; } @@ -437,7 +454,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t if (npeaks == cnt) { - // cerr << "RAW DATA\n"; + cerr << "RAW DATA\n"; /* no scaling at all, just get the sample data and duplicate it for both max and min peak values. @@ -450,7 +467,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t return -1; } - for (jack_nframes_t i = 0; i < npeaks; ++i) { + for (nframes_t i = 0; i < npeaks; ++i) { peaks[i].max = raw_staging[i]; peaks[i].min = raw_staging[i]; } @@ -499,7 +516,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t } - jack_nframes_t tnp; + nframes_t tnp; if (scale < 1.0) { @@ -521,11 +538,11 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t /* 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); + nframes_t current_frame = start; + nframes_t current_stored_peak = (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 stored_peak_before_next_visual_peak = (nframes_t) next_visual_peak_frame / frames_per_peak; uint32_t nvisual_peaks = 0; uint32_t stored_peaks_read = 0; uint32_t i = 0; @@ -546,7 +563,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t 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); + tnp = min ((_length/frames_per_peak - current_stored_peak), (nframes_t) expected_peaks); to_read = min (chunksize, tnp); off_t fend = lseek (peakfile, 0, SEEK_END); @@ -615,14 +632,14 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t 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); + nframes_t frames_read = 0; + nframes_t current_frame = start; + nframes_t i = 0; + nframes_t nvisual_peaks = 0; + nframes_t chunksize = (nframes_t) min (cnt, (nframes_t) 4096); raw_staging = new Sample[chunksize]; - jack_nframes_t frame_pos = start; + 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; @@ -635,7 +652,7 @@ AudioSource::read_peaks (PeakData *peaks, jack_nframes_t npeaks, jack_nframes_t if (i == frames_read) { 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") , _name, to_read, current_frame) @@ -745,15 +762,15 @@ AudioSource::build_peaks () } int -AudioSource::do_build_peak (jack_nframes_t first_frame, jack_nframes_t cnt) +AudioSource::do_build_peak (nframes_t first_frame, nframes_t cnt) { - jack_nframes_t current_frame; + nframes_t current_frame; Sample buf[frames_per_peak]; Sample xmin, xmax; uint32_t peaki; PeakData* peakbuf; - jack_nframes_t frames_read; - jack_nframes_t frames_to_read; + nframes_t frames_read; + nframes_t frames_to_read; off_t first_peak_byte; int peakfile = -1; int ret = -1; @@ -791,7 +808,7 @@ AudioSource::do_build_peak (jack_nframes_t first_frame, jack_nframes_t cnt) xmin = buf[0]; xmax = buf[0]; - for (jack_nframes_t n = 1; n < frames_read; ++n) { + for (nframes_t n = 1; n < frames_read; ++n) { xmax = max (xmax, buf[n]); xmin = min (xmin, buf[n]); @@ -849,7 +866,7 @@ AudioSource::file_changed (string path) } } -jack_nframes_t +nframes_t AudioSource::available_peaks (double zoom_factor) const { int peakfile; @@ -877,7 +894,7 @@ AudioSource::available_peaks (double zoom_factor) const } void -AudioSource::update_length (jack_nframes_t pos, jack_nframes_t cnt) +AudioSource::update_length (nframes_t pos, nframes_t cnt) { if (pos + cnt > _length) { _length = pos+cnt; |