#include "film.h"
#include "player.h"
#include "playlist.h"
+#include "filter.h"
+#include "audio_filter_graph.h"
+extern "C" {
+#include <libavutil/channel_layout.h>
+#ifdef DCPOMATIC_HAVE_PATCHED_FFMPEG
+#include <libavfilter/f_ebur128.h>
+#endif
+}
#include <boost/foreach.hpp>
#include <iostream>
, _done (0)
, _samples_per_point (1)
, _current (0)
- , _overall_peak (0)
- , _overall_peak_frame (0)
+ , _sample_peak (0)
+ , _sample_peak_frame (0)
+#ifdef DCPOMATIC_HAVE_PATCHED_FFMPEG
+ , _ebur128 (new AudioFilterGraph (film->audio_frame_rate(), av_get_default_channel_layout(film->audio_channels())))
+#endif
{
-
+#ifdef DCPOMATIC_HAVE_PATCHED_FFMPEG
+ _filters.push_back (new Filter ("ebur128", "ebur128", "audio", "ebur128=peak=true"));
+ _ebur128->setup (_filters);
+#endif
}
AnalyseAudioJob::~AnalyseAudioJob ()
{
+ BOOST_FOREACH (Filter const * i, _filters) {
+ delete const_cast<Filter*> (i);
+ }
delete[] _current;
}
_done = 0;
DCPTime const block = DCPTime::from_seconds (1.0 / 8);
for (DCPTime t = start; t < length; t += block) {
- analyse (player->get_audio (t, block, false));
+ shared_ptr<const AudioBuffers> audio = player->get_audio (t, block, false);
+#ifdef DCPOMATIC_HAVE_PATCHED_FFMPEG
+ _ebur128->process (audio);
+#endif
+ analyse (audio);
set_progress ((t.seconds() - start.seconds()) / (length.seconds() - start.seconds()));
}
}
- _analysis->set_peak (_overall_peak, DCPTime::from_frames (_overall_peak_frame, _film->audio_frame_rate ()));
+ _analysis->set_sample_peak (_sample_peak, DCPTime::from_frames (_sample_peak_frame, _film->audio_frame_rate ()));
+
+#ifdef DCPOMATIC_HAVE_PATCHED_FFMPEG
+ void* eb = _ebur128->get("Parsed_ebur128_0")->priv;
+ double true_peak = 0;
+ for (int i = 0; i < _film->audio_channels(); ++i) {
+ true_peak = max (true_peak, av_ebur128_get_true_peaks(eb)[i]);
+ }
+ _analysis->set_true_peak (true_peak);
+ _analysis->set_integrated_loudness (av_ebur128_get_integrated_loudness(eb));
+ _analysis->set_loudness_range (av_ebur128_get_loudness_range(eb));
+#endif
if (_playlist->content().size() == 1) {
/* If there was only one piece of content in this analysis we may later need to know what its
_current[j][AudioPoint::RMS] += pow (s, 2);
_current[j][AudioPoint::PEAK] = max (_current[j][AudioPoint::PEAK], as);
- if (as > _overall_peak) {
- _overall_peak = as;
- _overall_peak_frame = _done + i;
+ if (as > _sample_peak) {
+ _sample_peak = as;
+ _sample_peak_frame = _done + i;
}
if (((_done + i) % _samples_per_point) == 0) {