+/*
+ Copyright (C) 2013 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
+ 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,
+ 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.
+
+*/
+
+#include <libcxml/cxml.h>
#include "sndfile_content.h"
+#include "sndfile_decoder.h"
+#include "film.h"
#include "compose.hpp"
+#include "job.h"
+#include "util.h"
#include "i18n.h"
using std::string;
+using std::stringstream;
+using std::cout;
using boost::shared_ptr;
+using boost::lexical_cast;
-SndfileContent::SndfileContent (boost::filesystem::path f)
- : Content (f)
- , AudioContent (f)
+SndfileContent::SndfileContent (shared_ptr<const Film> f, boost::filesystem::path p)
+ : Content (f, p)
+ , AudioContent (f, p)
+ , _audio_channels (0)
+ , _audio_length (0)
+ , _audio_frame_rate (0)
{
}
-SndfileContent::SndfileContent (shared_ptr<const cxml::Node> node)
- : Content (node)
- , AudioContent (node)
-
+SndfileContent::SndfileContent (shared_ptr<const Film> f, shared_ptr<const cxml::Node> node, int)
+ : Content (f, node)
+ , AudioContent (f, node)
+ , _audio_mapping (node->node_child ("AudioMapping"))
{
-
+ _audio_channels = node->number_child<int> ("AudioChannels");
+ _audio_length = node->number_child<AudioFrame> ("AudioLength");
+ _audio_frame_rate = node->number_child<int> ("AudioFrameRate");
}
string
SndfileContent::summary () const
{
- return String::compose (_("Sound file: %1"), file().filename ());
+ /* Get the string() here so that the name does not have quotes around it */
+ return String::compose (_("%1 [audio]"), path_summary ());
}
-int
-SndfileContent::audio_channels () const
-{
- /* XXX */
- return 0;
-}
-
-ContentAudioFrame
-SndfileContent::audio_length () const
+string
+SndfileContent::technical_summary () const
{
- /* XXX */
- return 0;
+ return Content::technical_summary() + " - "
+ + AudioContent::technical_summary ()
+ + " - sndfile";
}
-int
-SndfileContent::audio_frame_rate () const
+string
+SndfileContent::information () const
{
- /* XXX */
- return 0;
-}
+ if (_audio_frame_rate == 0) {
+ return "";
+ }
+
+ stringstream s;
-int64_t
-SndfileContent::audio_channel_layout () const
-{
- /* XXX */
- return 0;
-}
+ s << String::compose (
+ _("%1 channels, %2kHz, %3 samples"),
+ audio_channels(),
+ content_audio_frame_rate() / 1000.0,
+ audio_length()
+ );
+ return s.str ();
+}
bool
SndfileContent::valid_file (boost::filesystem::path f)
return (ext == ".wav" || ext == ".aif" || ext == ".aiff");
}
-shared_ptr<Content>
-SndfileContent::clone () const
+void
+SndfileContent::examine (shared_ptr<Job> job)
{
- return shared_ptr<Content> (new SndfileContent (*this));
+ job->set_progress_unknown ();
+ Content::examine (job);
+
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ SndfileDecoder dec (film, shared_from_this());
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _audio_channels = dec.audio_channels ();
+ _audio_length = dec.audio_length ();
+ _audio_frame_rate = dec.audio_frame_rate ();
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_CHANNELS);
+ signal_changed (AudioContentProperty::AUDIO_LENGTH);
+ signal_changed (AudioContentProperty::AUDIO_FRAME_RATE);
+
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ /* XXX: do this in signal_changed...? */
+ _audio_mapping = AudioMapping (_audio_channels);
+ _audio_mapping.make_default ();
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_MAPPING);
+}
+
+void
+SndfileContent::as_xml (xmlpp::Node* node) const
+{
+ node->add_child("Type")->add_child_text ("Sndfile");
+ Content::as_xml (node);
+ AudioContent::as_xml (node);
+
+ node->add_child("AudioChannels")->add_child_text (lexical_cast<string> (audio_channels ()));
+ node->add_child("AudioLength")->add_child_text (lexical_cast<string> (audio_length ()));
+ node->add_child("AudioFrameRate")->add_child_text (lexical_cast<string> (content_audio_frame_rate ()));
+ _audio_mapping.as_xml (node->add_child("AudioMapping"));
+}
+
+DCPTime
+SndfileContent::full_length () const
+{
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ AudioFrame const len = audio_length() * output_audio_frame_rate() / content_audio_frame_rate ();
+
+ /* XXX: this depends on whether, alongside this audio, we are running video slower or faster than
+ it should be. The calculation above works out the output audio frames assuming that we are just
+ resampling the audio: it would be incomplete if, for example, we were running this audio alongside
+ 25fps video that was being run at 24fps.
+ */
+
+ return film->audio_frames_to_time (len);
+}
+
+int
+SndfileContent::output_audio_frame_rate () const
+{
+ shared_ptr<const Film> film = _film.lock ();
+ assert (film);
+
+ return film->audio_frame_rate ();
+}
+
+void
+SndfileContent::set_audio_mapping (AudioMapping m)
+{
+ {
+ boost::mutex::scoped_lock lm (_mutex);
+ _audio_mapping = m;
+ }
+
+ signal_changed (AudioContentProperty::AUDIO_MAPPING);
}