/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
#include <libcxml/cxml.h>
+#include <dcp/raw_convert.h>
#include "audio_content.h"
+#include "analyse_audio_job.h"
+#include "job_manager.h"
+#include "film.h"
+#include "exceptions.h"
+#include "config.h"
+#include "frame_rate_change.h"
+#include "i18n.h"
+
+using std::string;
+using std::cout;
+using std::vector;
using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using dcp::raw_convert;
int const AudioContentProperty::AUDIO_CHANNELS = 200;
int const AudioContentProperty::AUDIO_LENGTH = 201;
int const AudioContentProperty::AUDIO_FRAME_RATE = 202;
+int const AudioContentProperty::AUDIO_GAIN = 203;
+int const AudioContentProperty::AUDIO_DELAY = 204;
+int const AudioContentProperty::AUDIO_MAPPING = 205;
-AudioContent::AudioContent (boost::filesystem::path f)
+AudioContent::AudioContent (shared_ptr<const Film> f)
: Content (f)
+ , _audio_gain (0)
+ , _audio_delay (Config::instance()->default_audio_delay ())
+{
+
+}
+
+AudioContent::AudioContent (shared_ptr<const Film> f, DCPTime s)
+ : Content (f, s)
+ , _audio_gain (0)
+ , _audio_delay (Config::instance()->default_audio_delay ())
+{
+
+}
+
+AudioContent::AudioContent (shared_ptr<const Film> f, boost::filesystem::path p)
+ : Content (f, p)
+ , _audio_gain (0)
+ , _audio_delay (Config::instance()->default_audio_delay ())
+{
+
+}
+
+AudioContent::AudioContent (shared_ptr<const Film> f, cxml::ConstNodePtr node)
+ : Content (f, node)
+{
+ _audio_gain = node->number_child<float> ("AudioGain");
+ _audio_delay = node->number_child<int> ("AudioDelay");
+}
+
+AudioContent::AudioContent (shared_ptr<const Film> f, vector<shared_ptr<Content> > c)
+ : Content (f, c)
+{
+ shared_ptr<AudioContent> ref = dynamic_pointer_cast<AudioContent> (c[0]);
+ assert (ref);
+
+ for (size_t i = 0; i < c.size(); ++i) {
+ shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (c[i]);
+
+ if (ac->audio_gain() != ref->audio_gain()) {
+ throw JoinError (_("Content to be joined must have the same audio gain."));
+ }
+
+ if (ac->audio_delay() != ref->audio_delay()) {
+ throw JoinError (_("Content to be joined must have the same audio delay."));
+ }
+ }
+
+ _audio_gain = ref->audio_gain ();
+ _audio_delay = ref->audio_delay ();
+}
+
+void
+AudioContent::as_xml (xmlpp::Node* node) const
+{
+ boost::mutex::scoped_lock lm (_mutex);
+ node->add_child("AudioGain")->add_child_text (raw_convert<string> (_audio_gain));
+ node->add_child("AudioDelay")->add_child_text (raw_convert<string> (_audio_delay));
+}
+
+
+void
+AudioContent::set_audio_gain (double g)
{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _audio_gain = g;
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_GAIN);
+}
+void
+AudioContent::set_audio_delay (int d)
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _audio_delay = d;
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_DELAY);
}
-AudioContent::AudioContent (shared_ptr<const cxml::Node> node)
- : Content (node)
+boost::signals2::connection
+AudioContent::analyse_audio (boost::function<void()> finished)
{
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ shared_ptr<AnalyseAudioJob> job (new AnalyseAudioJob (film, dynamic_pointer_cast<AudioContent> (shared_from_this())));
+ boost::signals2::connection c = job->Finished.connect (finished);
+ JobManager::instance()->add (job);
+ return c;
}
-AudioContent::AudioContent (AudioContent const & o)
- : Content (o)
+boost::filesystem::path
+AudioContent::audio_analysis_path () const
{
+ shared_ptr<const Film> film = _film.lock ();
+ if (!film) {
+ return boost::filesystem::path ();
+ }
+ boost::filesystem::path p = film->audio_analysis_dir ();
+ p /= digest() + "_" + audio_mapping().digest();
+ return p;
}
-Time
-AudioContent::temporal_length () const
+string
+AudioContent::technical_summary () const
{
- return audio_length() / audio_frame_rate();
+ return String::compose (
+ "audio: channels %1, length %2, content rate %3, resampled rate %4",
+ audio_channels(),
+ audio_length().seconds(),
+ audio_frame_rate(),
+ resampled_audio_frame_rate()
+ );
+}
+
+void
+AudioContent::set_audio_mapping (AudioMapping)
+{
+ signal_changed (AudioContentProperty::AUDIO_MAPPING);
+}
+
+/** @return the frame rate that this content should be resampled to in order
+ * that it is in sync with the active video content at its start time.
+ */
+int
+AudioContent::resampled_audio_frame_rate () const
+{
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ /* Resample to a DCI-approved sample rate */
+ double t = dcp_audio_frame_rate (audio_frame_rate ());
+
+ FrameRateChange frc = film->active_frame_rate_change (position ());
+
+ /* Compensate if the DCP is being run at a different frame rate
+ to the source; that is, if the video is run such that it will
+ look different in the DCP compared to the source (slower or faster).
+ */
+
+ if (frc.change_speed) {
+ t /= frc.speed_up;
+ }
+
+ return rint (t);
}
projects / dcpomatic.git / blobdiff