Use dcp::file_to_string().

[dcpomatic.git] / src / lib / audio_decoder.h

diff --git a/src/lib/audio_decoder.h b/src/lib/audio_decoder.h
index 1b17029b7e4b2889d85e72861802b6e6c9097bac..754321880bcb026c7af361f6ff642eea350ea3f0 100644 (file)
--- a/src/lib/audio_decoder.h
+++ b/src/lib/audio_decoder.h
@@ -1,67 +1,79 @@
 /*
-    Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2018 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/>.
 
 */
 
+
 /** @file src/lib/audio_decoder.h
  *  @brief Parent class for audio decoders.
  */
 
+
 #ifndef DCPOMATIC_AUDIO_DECODER_H
 #define DCPOMATIC_AUDIO_DECODER_H
 
+
 #include "decoder.h"
-#include "content.h"
-#include "audio_content.h"
 #include "content_audio.h"
-#include <boost/enable_shared_from_this.hpp>
+#include "audio_stream.h"
+#include "decoder_part.h"
+#include <boost/signals2.hpp>
+
 
 class AudioBuffers;
+class AudioContent;
 class AudioDecoderStream;
+class Log;
+class Film;
+class Resampler;
+
 
 /** @class AudioDecoder.
  *  @brief Parent class for audio decoders.
  */
-class AudioDecoder : public virtual Decoder, public boost::enable_shared_from_this<AudioDecoder>
+class AudioDecoder : public std::enable_shared_from_this<AudioDecoder>, public DecoderPart
 {
 public:
-       AudioDecoder (boost::shared_ptr<const AudioContent>);
-       
-       boost::shared_ptr<const AudioContent> audio_content () const {
-               return _audio_content;
-       }
-
-       /** Try to fetch some audio from a specific place in this content.
-        *  @param frame Frame to start from (after resampling, if applicable)
-        *  @param length Frames to get (after resampling, if applicable)
-        *  @param accurate true to try hard to return frames from exactly `frame', false if we don't mind nearby frames.
-        *  @return Time-stamped audio data which may or may not be from the location (and of the length) requested.
-        */
-       ContentAudio get_audio (AudioStreamPtr stream, Frame time, Frame length, bool accurate);
+       AudioDecoder (Decoder* parent, std::shared_ptr<const AudioContent> content, bool fast);
 
-protected:
-       void audio (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
+       boost::optional<dcpomatic::ContentTime> position (std::shared_ptr<const Film> film) const;
+       void emit (std::shared_ptr<const Film> film, AudioStreamPtr stream, std::shared_ptr<const AudioBuffers>, dcpomatic::ContentTime, bool time_already_delayed = false);
+       void seek ();
        void flush ();
-       void seek (ContentTime t, bool accurate);
-       
-private:       
-       boost::shared_ptr<const AudioContent> _audio_content;
-       /** An AudioDecoderStream object to manage each stream in _audio_content */
-       std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;
+
+       dcpomatic::ContentTime stream_position (std::shared_ptr<const Film> film, AudioStreamPtr stream) const;
+
+       boost::signals2::signal<void (AudioStreamPtr, ContentAudio)> Data;
+
+private:
+       void silence (int milliseconds);
+
+       std::shared_ptr<const AudioContent> _content;
+       /** Frame after the last one that was emitted from Data (i.e. at the resampled rate, if applicable)
+        *  for each AudioStream.
+        */
+       typedef std::map<AudioStreamPtr, Frame> PositionMap;
+       PositionMap _positions;
+       typedef std::map<AudioStreamPtr, std::shared_ptr<Resampler>> ResamplerMap;
+       ResamplerMap _resamplers;
+
+       bool _fast;
 };
 
+
 #endif