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>
26 class FFmpegAudioStream;
27 class FFmpegSubtitleStream;
29 class FFmpegExaminer : public FFmpeg, public VideoExaminer
32 FFmpegExaminer (boost::shared_ptr<const FFmpegContent>, boost::shared_ptr<Job> job = boost::shared_ptr<Job> ());
34 boost::optional<double> video_frame_rate () const;
35 dcp::Size video_size () const;
36 Frame video_length () const;
37 boost::optional<double> sample_aspect_ratio () const;
39 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > subtitle_streams () const {
40 return _subtitle_streams;
43 std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams () const {
44 return _audio_streams;
47 boost::optional<ContentTime> first_video () const {
51 AVColorRange color_range () const {
52 return video_codec_context()->color_range;
55 AVColorPrimaries color_primaries () const {
56 return video_codec_context()->color_primaries;
59 AVColorTransferCharacteristic color_trc () const {
60 return video_codec_context()->color_trc;
63 AVColorSpace colorspace () const {
64 return video_codec_context()->colorspace;
67 int bits_per_pixel () const;
70 void video_packet (AVCodecContext *);
71 void audio_packet (AVCodecContext *, boost::shared_ptr<FFmpegAudioStream>);
72 void subtitle_packet (AVCodecContext *, boost::shared_ptr<FFmpegSubtitleStream>);
74 std::string stream_name (AVStream* s) const;
75 std::string audio_stream_name (AVStream* s) const;
76 std::string subtitle_stream_name (AVStream* s) const;
77 boost::optional<ContentTime> frame_time (AVStream* s) const;
79 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > _subtitle_streams;
80 std::vector<boost::shared_ptr<FFmpegAudioStream> > _audio_streams;
81 boost::optional<ContentTime> _first_video;
82 /** Video length, either obtained from the header or derived by running
83 * through the whole file.
86 bool _need_video_length;
88 boost::optional<ContentTime> _last_subtitle_start;