/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2015 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 <libdcp/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 "raw_convert.h"
+#include "compose.hpp"
+#include <libcxml/cxml.h>
+#include <libxml++/libxml++.h>
+#include <boost/foreach.hpp>
+#include <iostream>
#include "i18n.h"
using std::string;
+using std::cout;
using std::vector;
+using std::stringstream;
+using std::fixed;
+using std::setprecision;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
-using libdcp::raw_convert;
+using boost::optional;
-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;
+/** Something stream-related has changed */
+int const AudioContentProperty::AUDIO_STREAMS = 200;
+int const AudioContentProperty::AUDIO_GAIN = 201;
+int const AudioContentProperty::AUDIO_DELAY = 202;
-AudioContent::AudioContent (shared_ptr<const Film> f, Time s)
- : Content (f, s)
+AudioContent::AudioContent (shared_ptr<const Film> film)
+ : Content (film)
, _audio_gain (0)
, _audio_delay (Config::instance()->default_audio_delay ())
{
}
-AudioContent::AudioContent (shared_ptr<const Film> f, boost::filesystem::path p)
- : Content (f, p)
+AudioContent::AudioContent (shared_ptr<const Film> film, DCPTime s)
+ : Content (film, s)
, _audio_gain (0)
, _audio_delay (Config::instance()->default_audio_delay ())
{
}
-AudioContent::AudioContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node)
- : Content (f, node)
+AudioContent::AudioContent (shared_ptr<const Film> film, boost::filesystem::path p)
+ : Content (film, p)
+ , _audio_gain (0)
+ , _audio_delay (Config::instance()->default_audio_delay ())
+{
+
+}
+
+AudioContent::AudioContent (shared_ptr<const Film> film, cxml::ConstNodePtr node)
+ : Content (film, 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)
+AudioContent::AudioContent (shared_ptr<const Film> film, vector<shared_ptr<Content> > c)
+ : Content (film, c)
{
shared_ptr<AudioContent> ref = dynamic_pointer_cast<AudioContent> (c[0]);
- assert (ref);
-
+ DCPOMATIC_ASSERT (ref);
+
for (size_t i = 0; i < c.size(); ++i) {
shared_ptr<AudioContent> ac = dynamic_pointer_cast<AudioContent> (c[i]);
void
-AudioContent::set_audio_gain (float g)
+AudioContent::set_audio_gain (double g)
{
{
boost::mutex::scoped_lock lm (_mutex);
_audio_gain = g;
}
-
+
signal_changed (AudioContentProperty::AUDIO_GAIN);
}
boost::mutex::scoped_lock lm (_mutex);
_audio_delay = d;
}
-
+
signal_changed (AudioContentProperty::AUDIO_DELAY);
}
-boost::signals2::connection
-AudioContent::analyse_audio (boost::function<void()> finished)
+string
+AudioContent::technical_summary () const
{
- 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);
+ string s = "audio :";
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ s += String::compose ("stream channels %1 rate %2", i->channels(), i->frame_rate());
+ }
- return c;
+ return s;
}
-boost::filesystem::path
-AudioContent::audio_analysis_path () const
+void
+AudioContent::set_audio_mapping (AudioMapping mapping)
+{
+ int c = 0;
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ AudioMapping stream_mapping (i->channels (), MAX_DCP_AUDIO_CHANNELS);
+ for (int j = 0; j < i->channels(); ++j) {
+ for (int k = 0; k < MAX_DCP_AUDIO_CHANNELS; ++k) {
+ stream_mapping.set (j, k, mapping.get (c, k));
+ }
+ ++c;
+ }
+ i->set_mapping (stream_mapping);
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_STREAMS);
+}
+
+AudioMapping
+AudioContent::audio_mapping () const
+{
+ int channels = 0;
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ channels += i->channels ();
+ }
+
+ AudioMapping merged (channels, MAX_DCP_AUDIO_CHANNELS);
+
+ int c = 0;
+ int s = 0;
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ AudioMapping mapping = i->mapping ();
+ for (int j = 0; j < mapping.input_channels(); ++j) {
+ for (int k = 0; k < MAX_DCP_AUDIO_CHANNELS; ++k) {
+ merged.set (c, k, mapping.get (j, k));
+ }
+ ++c;
+ }
+ ++s;
+ }
+
+ return merged;
+}
+
+/** @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 ();
- if (!film) {
- return boost::filesystem::path ();
+ DCPOMATIC_ASSERT (film);
+
+ /* Resample to a DCI-approved sample rate */
+ double t = has_rate_above_48k() ? 96000 : 48000;
+
+ 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;
}
- boost::filesystem::path p = film->audio_analysis_dir ();
- p /= digest() + "_" + audio_mapping().digest();
- return p;
+ return lrint (t);
}
string
-AudioContent::technical_summary () const
+AudioContent::processing_description () const
+{
+ vector<AudioStreamPtr> streams = audio_streams ();
+ if (streams.empty ()) {
+ return "";
+ }
+
+ /* Possible answers are:
+ 1. all audio will be resampled from x to y.
+ 2. all audio will be resampled to y (from a variety of rates)
+ 3. some audio will be resampled to y (from a variety of rates)
+ 4. nothing will be resampled.
+ */
+
+ bool not_resampled = false;
+ bool resampled = false;
+ bool same = true;
+
+ optional<int> common_frame_rate;
+ BOOST_FOREACH (AudioStreamPtr i, streams) {
+ if (i->frame_rate() != resampled_audio_frame_rate()) {
+ resampled = true;
+ } else {
+ not_resampled = true;
+ }
+
+ if (common_frame_rate && common_frame_rate != i->frame_rate ()) {
+ same = false;
+ }
+ common_frame_rate = i->frame_rate ();
+ }
+
+ if (not_resampled && !resampled) {
+ return _("Audio will not be resampled");
+ }
+
+ if (not_resampled && resampled) {
+ return String::compose (_("Some audio will be resampled to %1kHz"), resampled_audio_frame_rate ());
+ }
+
+ if (!not_resampled && resampled) {
+ if (same) {
+ return String::compose (_("Audio will be resampled from %1kHz to %2kHz"), common_frame_rate.get(), resampled_audio_frame_rate ());
+ } else {
+ return String::compose (_("Audio will be resampled to %1kHz"), resampled_audio_frame_rate ());
+ }
+ }
+
+ return "";
+}
+
+/** @return true if any stream in this content has a sampling rate of more than 48kHz */
+bool
+AudioContent::has_rate_above_48k () const
+{
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ if (i->frame_rate() > 48000) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+/** @return User-visible names of each of our audio channels */
+vector<string>
+AudioContent::audio_channel_names () const
{
- return String::compose ("audio: channels %1, length %2, raw rate %3, out rate %4", audio_channels(), audio_length(), content_audio_frame_rate(), output_audio_frame_rate());
+ vector<string> n;
+
+ int t = 1;
+ BOOST_FOREACH (AudioStreamPtr i, audio_streams ()) {
+ for (int j = 0; j < i->channels(); ++j) {
+ n.push_back (String::compose ("%1:%2", t, j + 1));
+ }
+ ++t;
+ }
+
+ return n;
}
projects / dcpomatic.git / blobdiff