/*
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 "audio_decoder.h"
#include "audio_buffers.h"
-#include "audio_decoder_stream.h"
#include "audio_content.h"
+#include "log.h"
+#include "compose.hpp"
#include <boost/foreach.hpp>
#include <iostream>
using std::cout;
using std::map;
using boost::shared_ptr;
+using boost::optional;
-AudioDecoder::AudioDecoder (Decoder* parent, shared_ptr<const AudioContent> content, bool fast, shared_ptr<Log> log)
- : _ignore (false)
- , _fast (fast)
+AudioDecoder::AudioDecoder (Decoder* parent, shared_ptr<AudioContent> content, shared_ptr<Log> log)
+ : DecoderPart (parent, log)
{
BOOST_FOREACH (AudioStreamPtr i, content->streams ()) {
- _streams[i] = shared_ptr<AudioDecoderStream> (new AudioDecoderStream (content, i, parent, log));
+ _positions[i] = 0;
}
}
-ContentAudio
-AudioDecoder::get (AudioStreamPtr stream, Frame frame, Frame length, bool accurate)
-{
- return _streams[stream]->get (frame, length, accurate);
-}
-
void
-AudioDecoder::give (AudioStreamPtr stream, shared_ptr<const AudioBuffers> data, ContentTime time)
+AudioDecoder::emit (AudioStreamPtr stream, shared_ptr<const AudioBuffers> data, ContentTime time)
{
- if (_ignore) {
+ 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;
+ if (_positions[stream] == 0) {
+ _positions[stream] = time.frames_round (stream->frame_rate ());
}
- _streams[stream]->audio (data, time);
+ Data (stream, ContentAudio (data, _positions[stream]));
+ _positions[stream] += data->frames();
}
-void
-AudioDecoder::flush ()
+ContentTime
+AudioDecoder::position () const
{
- for (map<AudioStreamPtr, shared_ptr<AudioDecoderStream> >::const_iterator i = _streams.begin(); i != _streams.end(); ++i) {
- i->second->flush ();
+ optional<ContentTime> p;
+ for (map<AudioStreamPtr, Frame>::const_iterator i = _positions.begin(); i != _positions.end(); ++i) {
+ ContentTime const ct = ContentTime::from_frames (i->second, i->first->frame_rate ());
+ if (!p || ct < *p) {
+ p = ct;
+ }
}
-}
-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);
- }
+ return p.get_value_or(ContentTime());
}
-/** Set this decoder never to produce any data */
void
-AudioDecoder::set_ignore ()
+AudioDecoder::seek ()
{
- _ignore = true;
+ for (map<AudioStreamPtr, Frame>::iterator i = _positions.begin(); i != _positions.end(); ++i) {
+ i->second = 0;
+ }
}