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/*
Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file src/transcode_job.cc
* @brief A job which transcodes from one format to another.
*/
#include "transcode_job.h"
#include "dcp_encoder.h"
#include "upload_job.h"
#include "job_manager.h"
#include "film.h"
#include "encoder.h"
#include "log.h"
#include "dcpomatic_log.h"
#include "compose.hpp"
#include "analytics.h"
#include <iostream>
#include <iomanip>
#include "i18n.h"
using std::string;
using std::fixed;
using std::setprecision;
using std::cout;
using boost::shared_ptr;
using boost::optional;
using boost::dynamic_pointer_cast;
/** @param film Film to use */
TranscodeJob::TranscodeJob (shared_ptr<const Film> film)
: Job (film)
{
}
TranscodeJob::~TranscodeJob ()
{
/* We have to stop the job thread here as we're about to start tearing down
the Encoder, which is bad news if the job thread is still feeding it data.
*/
stop_thread ();
}
string
TranscodeJob::name () const
{
return String::compose (_("Transcoding %1"), _film->name());
}
string
TranscodeJob::json_name () const
{
return N_("transcode");
}
void
TranscodeJob::set_encoder (shared_ptr<Encoder> e)
{
_encoder = e;
}
void
TranscodeJob::run ()
{
try {
struct timeval start;
gettimeofday (&start, 0);
LOG_GENERAL_NC (N_("Transcode job starting"));
DCPOMATIC_ASSERT (_encoder);
_encoder->go ();
set_progress (1);
set_state (FINISHED_OK);
struct timeval finish;
gettimeofday (&finish, 0);
float fps = 0;
if (finish.tv_sec != start.tv_sec) {
fps = _encoder->frames_done() / (finish.tv_sec - start.tv_sec);
}
LOG_GENERAL (N_("Transcode job completed successfully: %1 fps"), fps);
if (dynamic_pointer_cast<DCPEncoder>(_encoder)) {
Analytics::instance()->successful_dcp_encode();
}
/* XXX: this shouldn't be here */
if (_film->upload_after_make_dcp() && dynamic_pointer_cast<DCPEncoder>(_encoder)) {
shared_ptr<Job> job (new UploadJob (_film));
JobManager::instance()->add (job);
}
_encoder.reset ();
} catch (...) {
_encoder.reset ();
throw;
}
}
string
TranscodeJob::status () const
{
if (!_encoder) {
return Job::status ();
}
char buffer[256];
if (finished() || _encoder->finishing()) {
strncpy (buffer, Job::status().c_str(), 255);
buffer[255] = '\0';
} else {
snprintf (
buffer, sizeof(buffer), "%s; %" PRId64 "/%" PRId64 " frames",
Job::status().c_str(),
_encoder->frames_done(),
_film->length().frames_round (_film->video_frame_rate ())
);
optional<float> const fps = _encoder->current_rate ();
if (fps) {
char fps_buffer[64];
/// TRANSLATORS: fps here is an abbreviation for frames per second
snprintf (fps_buffer, sizeof(fps_buffer), _("; %.1f fps"), *fps);
strncat (buffer, fps_buffer, strlen(buffer) - 1);
}
}
return buffer;
}
/** @return Approximate remaining time in seconds */
int
TranscodeJob::remaining_time () const
{
/* _encoder might be destroyed by the job-runner thread */
shared_ptr<Encoder> e = _encoder;
if (!e || e->finishing()) {
/* We aren't doing any actual encoding so just use the job's guess */
return Job::remaining_time ();
}
/* We're encoding so guess based on the current encoding rate */
optional<float> fps = e->current_rate ();
if (!fps) {
return 0;
}
/* Compute approximate proposed length here, as it's only here that we need it */
return (_film->length().frames_round(_film->video_frame_rate()) - e->frames_done()) / *fps;
}
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