/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 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 <iostream>
#include "audio_decoder.h"
#include "audio_buffers.h"
-#include "exceptions.h"
-#include "log.h"
-#include "resampler.h"
+#include "audio_decoder_stream.h"
+#include "audio_content.h"
+#include <boost/foreach.hpp>
+#include <iostream>
#include "i18n.h"
-using std::list;
-using std::pair;
using std::cout;
-using boost::optional;
+using std::map;
using boost::shared_ptr;
-AudioDecoder::AudioDecoder (shared_ptr<const Film> film, shared_ptr<const AudioContent> content)
- : Decoder (film)
- , _audio_content (content)
- , _audio_position (0)
+AudioDecoder::AudioDecoder (Decoder* parent, shared_ptr<const AudioContent> content, shared_ptr<Log> log)
+ : _ignore (false)
{
+ BOOST_FOREACH (AudioStreamPtr i, content->streams ()) {
+ _streams[i] = shared_ptr<AudioDecoderStream> (new AudioDecoderStream (content, i, parent, log));
+ }
+}
+ContentAudio
+AudioDecoder::get (AudioStreamPtr stream, Frame frame, Frame length, bool accurate)
+{
+ return _streams[stream]->get (frame, length, accurate);
}
void
-AudioDecoder::audio (shared_ptr<const AudioBuffers> data, AudioContent::Frame frame)
+AudioDecoder::give (AudioStreamPtr stream, shared_ptr<const AudioBuffers> data, ContentTime time)
{
- Audio (data, frame);
- _audio_position = frame + data->frames ();
+ if (_ignore) {
+ return;
+ }
+
+ if (_streams.find (stream) == _streams.end ()) {
+
+ /* This method can be called with an unknown stream during the following sequence:
+ - Add KDM to some DCP content.
+ - Content gets re-examined.
+ - SingleStreamAudioContent::take_from_audio_examiner creates a new stream.
+ - Some content property change signal is delivered so Player::Changed is emitted.
+ - Film viewer to re-gets the frame.
+ - Player calls DCPDecoder pass which calls this method on the new stream.
+
+ At this point the AudioDecoder does not know about the new stream.
+
+ Then
+ - Some other property change signal is delivered which marks the player's pieces invalid.
+ - Film viewer re-gets again.
+ - Everything is OK.
+
+ In this situation it is fine for us to silently drop the audio.
+ */
+
+ return;
+ }
+
+ _streams[stream]->audio (data, time);
}
-/** This is a bit odd, but necessary when we have (e.g.) FFmpegDecoders with no audio.
- * The player needs to know that there is no audio otherwise it will keep trying to
- * pass() the decoder to get it to emit audio.
- */
-bool
-AudioDecoder::has_audio () const
+void
+AudioDecoder::flush ()
+{
+ for (map<AudioStreamPtr, shared_ptr<AudioDecoderStream> >::const_iterator i = _streams.begin(); i != _streams.end(); ++i) {
+ i->second->flush ();
+ }
+}
+
+void
+AudioDecoder::seek (ContentTime t, bool accurate)
+{
+ for (map<AudioStreamPtr, shared_ptr<AudioDecoderStream> >::const_iterator i = _streams.begin(); i != _streams.end(); ++i) {
+ i->second->seek (t, accurate);
+ }
+}
+
+/** Set this decoder never to produce any data */
+void
+AudioDecoder::set_ignore ()
+{
+ _ignore = true;
+}
+
+void
+AudioDecoder::set_fast ()
{
- return _audio_content->audio_channels () > 0;
+ for (map<AudioStreamPtr, shared_ptr<AudioDecoderStream> >::const_iterator i = _streams.begin(); i != _streams.end(); ++i) {
+ i->second->set_fast ();
+ }
}