src/lib/ffmpeg_encoder.h

   1 /*
   2     Copyright (C) 2017-2018 Carl Hetherington <cth@carlh.net>
   3
   4     This file is part of DCP-o-matic.
   5
   6     DCP-o-matic is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     DCP-o-matic is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 */
  20
  21 #ifndef DCPOMATIC_FFMPEG_ENCODER_H
  22 #define DCPOMATIC_FFMPEG_ENCODER_H
  23
  24 #include "encoder.h"
  25 #include "event_history.h"
  26 #include "audio_mapping.h"
  27 #include "ffmpeg_file_encoder.h"
  28
  29 class Butler;
  30
  31 class FFmpegEncoder : public Encoder
  32 {
  33 public:
  34         FFmpegEncoder (
  35                 boost::shared_ptr<const Film> film,
  36                 boost::weak_ptr<Job> job,
  37                 boost::filesystem::path output,
  38                 ExportFormat format,
  39                 bool mixdown_to_stereo,
  40                 bool split_reels,
  41                 int x264_crf
  42                 );
  43
  44         void go ();
  45
  46         float current_rate () const;
  47         Frame frames_done () const;
  48         bool finishing () const {
  49                 return false;
  50         }
  51
  52 private:
  53
  54         class FileEncoderSet
  55         {
  56         public:
  57                 FileEncoderSet (
  58                         dcp::Size video_frame_size,
  59                         int video_frame_rate,
  60                         int audio_frame_rate,
  61                         int channels,
  62                         ExportFormat,
  63                         int x264_crf,
  64                         bool three_d,
  65                         boost::filesystem::path output,
  66                         std::string extension
  67                         );
  68
  69                 boost::shared_ptr<FFmpegFileEncoder> get (Eyes eyes) const;
  70                 void flush ();
  71                 void audio (boost::shared_ptr<AudioBuffers>);
  72
  73         private:
  74                 std::map<Eyes, boost::shared_ptr<FFmpegFileEncoder> > _encoders;
  75         };
  76
  77         std::list<FileEncoderSet> _file_encoders;
  78         int _output_audio_channels;
  79
  80         mutable boost::mutex _mutex;
  81         DCPTime _last_time;
  82
  83         EventHistory _history;
  84
  85         boost::shared_ptr<Butler> _butler;
  86 };
  87
  88 #endif