2 Copyright (C) 2017-2018 Carl Hetherington <cth@carlh.net>
4 This file is part of DCP-o-matic.
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.
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.
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/>.
21 #ifndef DCPOMATIC_FFMPEG_FILE_ENCODER_H
22 #define DCPOMATIC_FFMPEG_FILE_ENCODER_H
25 #include "event_history.h"
26 #include "audio_mapping.h"
30 #include <libavcodec/avcodec.h>
31 #include <libavformat/avformat.h>
35 class ExportAudioStream;
38 class FFmpegFileEncoder
42 dcp::Size video_frame_size,
47 bool audio_stream_per_channel,
49 boost::filesystem::path output
50 #ifdef DCPOMATIC_VARIANT_SWAROOP
51 , boost::optional<dcp::Key> key
52 , boost::optional<std::string> id
56 void video (boost::shared_ptr<PlayerVideo>, dcpomatic::DCPTime);
57 void audio (boost::shared_ptr<AudioBuffers>);
58 void subtitle (PlayerText, dcpomatic::DCPTimePeriod);
62 static AVPixelFormat pixel_format (ExportFormat format);
68 void audio_frame (int size);
70 static void buffer_free(void* opaque, uint8_t* data);
71 void buffer_free2(uint8_t* data);
73 AVCodec* _video_codec;
74 AVCodecContext* _video_codec_context;
75 std::vector<boost::shared_ptr<ExportAudioStream> > _audio_streams;
76 bool _audio_stream_per_channel;
77 AVFormatContext* _format_context;
78 AVStream* _video_stream;
79 AVPixelFormat _pixel_format;
80 AVSampleFormat _sample_format;
81 AVDictionary* _video_options;
82 std::string _video_codec_name;
83 std::string _audio_codec_name;
86 boost::filesystem::path _output;
87 dcp::Size _video_frame_size;
88 int _video_frame_rate;
89 int _audio_frame_rate;
91 int64_t _audio_frames;
93 boost::shared_ptr<AudioBuffers> _pending_audio;
95 /** Store of shared_ptr<Image> to keep them alive whilst raw pointers into
96 their data have been passed to FFmpeg.
98 std::map<uint8_t*, boost::shared_ptr<const Image> > _pending_images;
99 boost::mutex _pending_images_mutex;
101 static int _video_stream_index;
102 static int _audio_stream_index_base;