2 Copyright (C) 2013-2017 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/>.
23 #include "video_examiner.h"
24 #include <boost/optional.hpp>
28 class FFmpegAudioStream;
29 class FFmpegSubtitleStream;
33 class FFmpegExaminer : public FFmpeg, public VideoExaminer
36 FFmpegExaminer (std::shared_ptr<const FFmpegContent>, std::shared_ptr<Job> job = std::shared_ptr<Job>());
38 bool has_video () const override;
40 boost::optional<double> video_frame_rate () const override;
41 dcp::Size video_size () const override;
42 Frame video_length () const override;
43 boost::optional<double> sample_aspect_ratio () const override;
44 bool yuv () const override;
46 std::vector<std::shared_ptr<FFmpegSubtitleStream>> subtitle_streams () const {
47 return _subtitle_streams;
50 std::vector<std::shared_ptr<FFmpegAudioStream>> audio_streams () const {
51 return _audio_streams;
54 boost::optional<dcpomatic::ContentTime> first_video () const {
58 VideoRange range () const override;
60 PixelQuanta pixel_quanta () const override;
62 AVColorRange color_range () const {
63 return video_codec_context()->color_range;
66 AVColorPrimaries color_primaries () const {
67 return video_codec_context()->color_primaries;
70 AVColorTransferCharacteristic color_trc () const {
71 return video_codec_context()->color_trc;
74 AVColorSpace colorspace () const {
75 return video_codec_context()->colorspace;
78 boost::optional<int> bits_per_pixel () const;
80 boost::optional<double> rotation () const {
84 bool pulldown () const {
89 bool video_packet (AVCodecContext* context, std::string& temporal_reference, AVPacket* packet);
90 void audio_packet (AVCodecContext* context, std::shared_ptr<FFmpegAudioStream>, AVPacket* packet);
92 std::string stream_name (AVStream* s) const;
93 std::string subtitle_stream_name (AVStream* s) const;
94 boost::optional<dcpomatic::ContentTime> frame_time (AVFrame* frame, AVStream* stream) const;
96 std::vector<std::shared_ptr<FFmpegSubtitleStream>> _subtitle_streams;
97 std::vector<std::shared_ptr<FFmpegAudioStream>> _audio_streams;
98 boost::optional<dcpomatic::ContentTime> _first_video;
99 /** Video length, either obtained from the header or derived by running
100 * through the whole file.
103 bool _need_video_length;
105 boost::optional<double> _rotation;
110 SubtitleStart (std::string id_, bool image_, dcpomatic::ContentTime time_)
117 /** true if it's an image subtitle, false for text */
119 dcpomatic::ContentTime time;
122 typedef std::map<std::shared_ptr<FFmpegSubtitleStream>, boost::optional<SubtitleStart>> LastSubtitleMap;
123 LastSubtitleMap _last_subtitle_start;