#include "decoder_factory.h"
#include "audio_decoder.h"
+#include "i18n.h"
+
using std::string;
using std::max;
+using std::min;
+using std::cout;
using boost::shared_ptr;
int const AnalyseAudioJob::_num_points = 1024;
AnalyseAudioJob::AnalyseAudioJob (shared_ptr<Film> f)
: Job (f)
- , _done_for_this_point (0)
, _done (0)
, _samples_per_point (1)
{
string
AnalyseAudioJob::name () const
{
- return String::compose ("Analyse audio of %1", _film->name());
+ return String::compose (_("Analyse audio of %1"), _film->name());
}
void
decoders.audio->set_audio_stream (_film->audio_stream ());
decoders.audio->Audio.connect (bind (&AnalyseAudioJob::audio, this, _1));
- int64_t total_audio_frames = video_frames_to_audio_frames (_film->length().get(), _film->audio_stream()->sample_rate(), _film->frames_per_second());
- _samples_per_point = total_audio_frames / _num_points;
+ int64_t total_audio_frames = video_frames_to_audio_frames (_film->length().get(), _film->audio_stream()->sample_rate(), _film->source_frame_rate());
+ _samples_per_point = max (1L, total_audio_frames / _num_points);
_current.resize (_film->audio_stream()->channels ());
_analysis.reset (new AudioAnalysis (_film->audio_stream()->channels()));
_current[j][AudioPoint::RMS] += pow (s, 2);
_current[j][AudioPoint::PEAK] = max (_current[j][AudioPoint::PEAK], fabsf (s));
- if (_done_for_this_point == _samples_per_point) {
- _current[j][AudioPoint::RMS] = 20 * log10 (sqrt (_current[j][AudioPoint::RMS] / _samples_per_point));
- _current[j][AudioPoint::PEAK] = 20 * log10 (_current[j][AudioPoint::PEAK]);
-
+ if ((_done % _samples_per_point) == 0) {
+ _current[j][AudioPoint::RMS] = sqrt (_current[j][AudioPoint::RMS] / _samples_per_point);
_analysis->add_point (j, _current[j]);
- _done_for_this_point = 0;
_current[j] = AudioPoint ();
}
}
-
- ++_done_for_this_point;
- }
- _done += b->frames ();
+ ++_done;
+ }
}