2 Copyright (C) 2013-2015 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include "video_examiner.h"
22 #include <boost/optional.hpp>
24 class FFmpegAudioStream;
25 class FFmpegSubtitleStream;
27 class FFmpegExaminer : public FFmpeg, public VideoExaminer
30 FFmpegExaminer (boost::shared_ptr<const FFmpegContent>, boost::shared_ptr<Job> job = boost::shared_ptr<Job> ());
32 boost::optional<float> video_frame_rate () const;
33 dcp::Size video_size () const;
34 Frame video_length () const;
35 boost::optional<float> sample_aspect_ratio () const;
37 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > subtitle_streams () const {
38 return _subtitle_streams;
41 std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams () const {
42 return _audio_streams;
45 boost::optional<ContentTime> first_video () const {
50 void video_packet (AVCodecContext *);
51 void audio_packet (AVCodecContext *, boost::shared_ptr<FFmpegAudioStream>);
52 void subtitle_packet (AVCodecContext *, boost::shared_ptr<FFmpegSubtitleStream>);
54 std::string stream_name (AVStream* s) const;
55 std::string audio_stream_name (AVStream* s) const;
56 std::string subtitle_stream_name (AVStream* s) const;
57 boost::optional<ContentTime> frame_time (AVStream* s) const;
59 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > _subtitle_streams;
60 std::vector<boost::shared_ptr<FFmpegAudioStream> > _audio_streams;
61 boost::optional<ContentTime> _first_video;
62 /** Video length, either obtained from the header or derived by running
63 * through the whole file.
66 bool _need_video_length;
68 boost::optional<ContentTime> _last_subtitle_start;