2 Copyright (C) 2012-2015 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 * @brief Some utility functions and classes.
24 #ifndef DCPOMATIC_UTIL_H
25 #define DCPOMATIC_UTIL_H
27 #include "compose.hpp"
29 #include "exceptions.h"
30 #include "dcpomatic_time.h"
32 #include <dcp/picture_mxf_writer.h>
34 #include <libavcodec/avcodec.h>
35 #include <libavfilter/avfilter.h>
37 #include <boost/shared_ptr.hpp>
38 #include <boost/optional.hpp>
39 #include <boost/filesystem.hpp>
45 /** The maximum number of audio channels that we can have in a DCP */
46 #define MAX_DCP_AUDIO_CHANNELS 12
47 /** Message broadcast to find possible encoding servers */
48 #define DCPOMATIC_HELLO "Boys, you gotta learn not to talk to nuns that way"
49 /** Number of films to keep in history */
50 #define HISTORY_SIZE 10
51 #define REPORT_PROBLEM _("Please report this problem by using Help -> Report a problem or via email to carl@dcpomatic.com")
53 extern std::string program_name;
58 extern std::string seconds_to_hms (int);
59 extern std::string seconds_to_approximate_hms (int);
60 extern double seconds (struct timeval);
61 extern void dcpomatic_setup ();
62 extern void dcpomatic_setup_gettext_i18n (std::string);
63 extern std::string md5_digest_head_tail (std::vector<boost::filesystem::path>, boost::uintmax_t size);
64 extern void ensure_ui_thread ();
65 extern std::string audio_channel_name (int);
66 extern bool valid_image_file (boost::filesystem::path);
67 extern bool valid_j2k_file (boost::filesystem::path);
68 #ifdef DCPOMATIC_WINDOWS
69 extern boost::filesystem::path mo_path ();
71 extern std::string tidy_for_filename (std::string);
72 extern dcp::Size fit_ratio_within (float ratio, dcp::Size);
73 extern int dcp_audio_frame_rate (int);
74 extern int stride_round_up (int, int const *, int);
75 extern int round_to (float n, int r);
76 extern void* wrapped_av_malloc (size_t);
78 class FFmpegSubtitlePeriod
81 FFmpegSubtitlePeriod (ContentTime f)
85 FFmpegSubtitlePeriod (ContentTime f, ContentTime t)
91 boost::optional<ContentTime> to;
94 extern FFmpegSubtitlePeriod subtitle_period (AVSubtitle const &);
95 extern void set_backtrace_file (boost::filesystem::path);
96 extern dcp::FrameInfo read_frame_info (FILE* file, int frame, Eyes eyes);
97 extern void write_frame_info (FILE* file, int frame, Eyes eyes, dcp::FrameInfo info);
98 extern int64_t video_frames_to_audio_frames (VideoFrame v, float audio_sample_rate, float frames_per_second);
99 extern std::map<std::string, std::string> split_get_request (std::string url);