2 Copyright (C) 2013-2016 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;
30 class FFmpegExaminer : public FFmpeg, public VideoExaminer
33 FFmpegExaminer (boost::shared_ptr<const FFmpegContent>, boost::shared_ptr<Job> job = boost::shared_ptr<Job> ());
35 boost::optional<double> video_frame_rate () const;
36 dcp::Size video_size () const;
37 Frame video_length () const;
38 boost::optional<double> sample_aspect_ratio () const;
41 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > subtitle_streams () const {
42 return _subtitle_streams;
45 std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams () const {
46 return _audio_streams;
49 boost::optional<ContentTime> first_video () const {
53 AVColorRange color_range () const {
54 return video_codec_context()->color_range;
57 AVColorPrimaries color_primaries () const {
58 return video_codec_context()->color_primaries;
61 AVColorTransferCharacteristic color_trc () const {
62 return video_codec_context()->color_trc;
65 AVColorSpace colorspace () const {
66 return video_codec_context()->colorspace;
69 int bits_per_pixel () const;
72 void video_packet (AVCodecContext *);
73 void audio_packet (AVCodecContext *, boost::shared_ptr<FFmpegAudioStream>);
74 void subtitle_packet (AVCodecContext *, boost::shared_ptr<FFmpegSubtitleStream>);
76 std::string stream_name (AVStream* s) const;
77 std::string audio_stream_name (AVStream* s) const;
78 std::string subtitle_stream_name (AVStream* s) const;
79 boost::optional<ContentTime> frame_time (AVStream* s) const;
81 std::vector<boost::shared_ptr<FFmpegSubtitleStream> > _subtitle_streams;
82 std::vector<boost::shared_ptr<FFmpegAudioStream> > _audio_streams;
83 boost::optional<ContentTime> _first_video;
84 /** Video length, either obtained from the header or derived by running
85 * through the whole file.
88 bool _need_video_length;
92 SubtitleStart (std::string id_, bool image_, ContentTime time_)
99 /** true if it's an image subtitle, false for text */
104 typedef std::map<boost::shared_ptr<FFmpegSubtitleStream>, boost::optional<SubtitleStart> > LastSubtitleMap;
105 LastSubtitleMap _last_subtitle_start;