- shared_ptr<AudioAnalysis> an (new AudioAnalysis (path));
- if (an->sample_peak() || an->true_peak()) {
- float const peak = max (an->sample_peak().get_value_or(0), an->true_peak().get_value_or(0));
- float const peak_dB = 20 * log10 (peak) + an->gain_correction (film->playlist ());
- if (peak_dB > -3 && peak_dB < -0.5) {
- hints.push_back (_("Your audio level is very high. You should reduce the gain of your audio content."));
- } else if (peak_dB > -0.5) {
- hints.push_back (_("Your audio level is very close to clipping. You should reduce the gain of your audio content."));
+ try {
+ shared_ptr<AudioAnalysis> an (new AudioAnalysis (path));
+
+ string ch;
+
+ vector<AudioAnalysis::PeakTime> sample_peak = an->sample_peak ();
+ vector<float> true_peak = an->true_peak ();
+
+ for (size_t i = 0; i < sample_peak.size(); ++i) {
+ float const peak = max (sample_peak[i].peak, true_peak.empty() ? 0 : true_peak[i]);
+ float const peak_dB = 20 * log10 (peak) + an->gain_correction (film->playlist ());
+ if (peak_dB > -3) {
+ ch += dcp::raw_convert<string> (short_audio_channel_name (i)) + ", ";
+ }
+ }
+
+ ch = ch.substr (0, ch.length() - 2);
+
+ if (!ch.empty ()) {
+ hint (String::compose (
+ _("Your audio level is very high (on %1). You should reduce the gain of your audio content."),
+ ch
+ )
+ );
+ }
+ } catch (OldFormatError& e) {
+ /* The audio analysis is too old to load in; just skip this hint as if
+ it had never been run.
+ */
+ }
+ }
+
+ emit (bind(boost::ref(Progress), _("Examining closed captions")));
+
+ shared_ptr<Player> player (new Player (film, film->playlist ()));
+ player->set_ignore_video ();
+ player->set_ignore_audio ();
+ player->Text.connect (bind(&Hints::text, this, _1, _2, _4));
+
+ struct timeval last_pulse;
+ gettimeofday (&last_pulse, 0);
+
+ while (!player->pass()) {
+
+ struct timeval now;
+ gettimeofday (&now, 0);
+ if ((seconds(now) - seconds(last_pulse)) > 1) {
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ if (_stop) {
+ break;
+ }