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                 std::shared_ptr<const Film> film,
  36                 std::weak_ptr<Job> job,
  37                 boost::filesystem::path output,
  38                 ExportFormat format,
  39                 bool mixdown_to_stereo,
  40                 bool split_reels,
  41                 bool audio_stream_per_channel,
  42                 int x264_crf
  43                 );
  44
  45         void go ();
  46
  47         boost::optional<float> current_rate () const;
  48         Frame frames_done () const;
  49         bool finishing () const {
  50                 return false;
  51         }
  52
  53 private:
  54
  55         class FileEncoderSet
  56         {
  57         public:
  58                 FileEncoderSet (
  59                         dcp::Size video_frame_size,
  60                         int video_frame_rate,
  61                         int audio_frame_rate,
  62                         int channels,
  63                         ExportFormat,
  64                         bool audio_stream_per_channel,
  65                         int x264_crf,
  66                         bool three_d,
  67                         boost::filesystem::path output,
  68                         std::string extension
  69                         );
  70
  71                 std::shared_ptr<FFmpegFileEncoder> get (Eyes eyes) const;
  72                 void flush ();
  73                 void audio (std::shared_ptr<AudioBuffers>);
  74
  75         private:
  76                 std::map<Eyes, std::shared_ptr<FFmpegFileEncoder> > _encoders;
  77         };
  78
  79         int _output_audio_channels;
  80
  81         mutable boost::mutex _mutex;
  82         dcpomatic::DCPTime _last_time;
  83
  84         EventHistory _history;
  85
  86         boost::filesystem::path _output;
  87         ExportFormat _format;
  88         bool _split_reels;
  89         bool _audio_stream_per_channel;
  90         int _x264_crf;
  91
  92         std::shared_ptr<Butler> _butler;
  93 };
  94
  95 #endif