More player debugging for butler video-full states.
[dcpomatic.git] / src / lib / transcode_job.cc
1 /*
2     Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
3
4     This file is part of DCP-o-matic.
5
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.
10
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.
15
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/>.
18
19 */
20
21 /** @file src/transcode_job.cc
22  *  @brief A job which transcodes from one format to another.
23  */
24
25 #include "transcode_job.h"
26 #include "dcp_encoder.h"
27 #include "upload_job.h"
28 #include "job_manager.h"
29 #include "film.h"
30 #include "encoder.h"
31 #include "log.h"
32 #include "dcpomatic_log.h"
33 #include "compose.hpp"
34 #include <iostream>
35 #include <iomanip>
36
37 #include "i18n.h"
38
39 using std::string;
40 using std::fixed;
41 using std::setprecision;
42 using std::cout;
43 using boost::shared_ptr;
44
45 /** @param film Film to use */
46 TranscodeJob::TranscodeJob (shared_ptr<const Film> film)
47         : Job (film)
48 {
49
50 }
51
52 string
53 TranscodeJob::name () const
54 {
55         return String::compose (_("Transcoding %1"), _film->name());
56 }
57
58 string
59 TranscodeJob::json_name () const
60 {
61         return N_("transcode");
62 }
63
64 void
65 TranscodeJob::set_encoder (shared_ptr<Encoder> e)
66 {
67         _encoder = e;
68 }
69
70 void
71 TranscodeJob::run ()
72 {
73         try {
74                 struct timeval start;
75                 gettimeofday (&start, 0);
76                 LOG_GENERAL_NC (N_("Transcode job starting"));
77
78                 DCPOMATIC_ASSERT (_encoder);
79                 _encoder->go ();
80                 set_progress (1);
81                 set_state (FINISHED_OK);
82
83                 struct timeval finish;
84                 gettimeofday (&finish, 0);
85
86                 float fps = 0;
87                 if (finish.tv_sec != start.tv_sec) {
88                         fps = _encoder->frames_done() / (finish.tv_sec - start.tv_sec);
89                 }
90
91                 LOG_GENERAL (N_("Transcode job completed successfully: %1 fps"), fps);
92                 _encoder.reset ();
93
94                 /* XXX: this shouldn't be here */
95                 if (_film->upload_after_make_dcp ()) {
96                         shared_ptr<Job> job (new UploadJob (_film));
97                         JobManager::instance()->add (job);
98                 }
99
100         } catch (...) {
101                 _encoder.reset ();
102                 throw;
103         }
104 }
105
106 string
107 TranscodeJob::status () const
108 {
109         if (!_encoder) {
110                 return Job::status ();
111         }
112
113
114         char buffer[256];
115         if (finished() || _encoder->finishing()) {
116                 strncpy (buffer, Job::status().c_str(), 256);
117         } else {
118                 snprintf (
119                         buffer, sizeof(buffer), "%s; %" PRId64 "/%" PRId64 " frames",
120                         Job::status().c_str(),
121                         _encoder->frames_done(),
122                         _film->length().frames_round (_film->video_frame_rate ())
123                         );
124
125                 float const fps = _encoder->current_rate ();
126                 if (fps) {
127                         char fps_buffer[64];
128                         /// TRANSLATORS: fps here is an abbreviation for frames per second
129                         snprintf (fps_buffer, sizeof(fps_buffer), _("; %.1f fps"), fps);
130                         strncat (buffer, fps_buffer, strlen(buffer) - 1);
131                 }
132         }
133
134         return buffer;
135 }
136
137 /** @return Approximate remaining time in seconds */
138 int
139 TranscodeJob::remaining_time () const
140 {
141         /* _encoder might be destroyed by the job-runner thread */
142         shared_ptr<Encoder> e = _encoder;
143
144         if (!e || e->finishing()) {
145                 /* We aren't doing any actual encoding so just use the job's guess */
146                 return Job::remaining_time ();
147         }
148
149         /* We're encoding so guess based on the current encoding rate */
150
151         float fps = e->current_rate ();
152
153         if (fps == 0) {
154                 return 0;
155         }
156
157         /* Compute approximate proposed length here, as it's only here that we need it */
158         return (_film->length().frames_round (_film->video_frame_rate ()) - e->frames_done()) / fps;
159 }