/*
Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "film.h"
#include "player.h"
#include "playlist.h"
+#include "filter.h"
+#include "audio_filter_graph.h"
+#include "config.h"
+extern "C" {
+#include <libavutil/channel_layout.h>
+#ifdef DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG
+#include <libavfilter/f_ebur128.h>
+#endif
+}
#include <boost/foreach.hpp>
+#include <iostream>
#include "i18n.h"
, _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_EBUR128_PATCHED_FFMPEG
+ , _ebur128 (new AudioFilterGraph (film->audio_frame_rate(), film->audio_channels()))
+#endif
{
-
+#ifdef DCPOMATIC_HAVE_EBUR128_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;
}
shared_ptr<Player> player (new Player (_film, _playlist));
player->set_ignore_video ();
player->set_fast ();
+ player->set_play_referenced ();
+
+ DCPTime const start = _playlist->start().get_value_or (DCPTime ());
+ DCPTime const length = _playlist->length ();
- int64_t const len = _playlist->length().frames_round (_film->audio_frame_rate());
+ Frame const len = DCPTime (length - start).frames_round (_film->audio_frame_rate());
_samples_per_point = max (int64_t (1), len / _num_points);
delete[] _current;
bool has_any_audio = false;
BOOST_FOREACH (shared_ptr<Content> c, _playlist->content ()) {
- if (dynamic_pointer_cast<AudioContent> (c)) {
+ if (c->audio) {
has_any_audio = true;
}
}
if (has_any_audio) {
_done = 0;
DCPTime const block = DCPTime::from_seconds (1.0 / 8);
- for (DCPTime t; t < _film->length(); t += block) {
- analyse (player->get_audio (t, block, false));
- set_progress (t.seconds() / _film->length().seconds());
+ for (DCPTime t = start; t < length; t += block) {
+ shared_ptr<const AudioBuffers> audio = player->get_audio (t, block, false);
+#ifdef DCPOMATIC_HAVE_EBUR128_PATCHED_FFMPEG
+ if (Config::instance()->analyse_ebur128 ()) {
+ _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_EBUR128_PATCHED_FFMPEG
+ if (Config::instance()->analyse_ebur128 ()) {
+ 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
gain was when we analysed it.
*/
- shared_ptr<const AudioContent> ac = dynamic_pointer_cast<const AudioContent> (_playlist->content().front ());
+ shared_ptr<const AudioContent> ac = _playlist->content().front()->audio;
DCPOMATIC_ASSERT (ac);
- _analysis->set_analysis_gain (ac->audio_gain ());
+ _analysis->set_analysis_gain (ac->gain ());
}
_analysis->write (_film->audio_analysis_path (_playlist));
float s = data[i];
float as = fabsf (s);
if (as < 10e-7) {
- /* SafeStringStream can't serialise and recover inf or -inf, so prevent such
+ /* locked_stringstream can't serialise and recover inf or -inf, so prevent such
values by replacing with this (140dB down) */
s = as = 10e-7;
}
_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) {
projects / dcpomatic.git / blobdiff