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/*
Copyright (C) 2012-2021 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 "analytics.h"
#include "compose.hpp"
#include "content.h"
#include "config.h"
#include "dcp_film_encoder.h"
#include "dcpomatic_log.h"
#include "examine_content_job.h"
#include "film.h"
#include "film_encoder.h"
#include "job_manager.h"
#include "log.h"
#include "transcode_job.h"
#include "upload_job.h"
#include "variant.h"
#include <iomanip>
#include <iostream>
#include "i18n.h"
using std::cout;
using std::fixed;
using std::make_shared;
using std::setprecision;
using std::shared_ptr;
using std::string;
using boost::optional;
using std::dynamic_pointer_cast;
/** @param film Film to use */
TranscodeJob::TranscodeJob (shared_ptr<const Film> film, ChangedBehaviour changed)
: Job (film)
, _changed (changed)
{
}
TranscodeJob::~TranscodeJob ()
{
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<FilmEncoder> e)
{
_encoder = e;
}
void
TranscodeJob::run ()
{
try {
auto content = _film->content();
std::vector<shared_ptr<Content>> changed;
std::copy_if (content.begin(), content.end(), std::back_inserter(changed), [](shared_ptr<Content> c) { return c->changed(); });
if (!changed.empty()) {
switch (_changed) {
case ChangedBehaviour::EXAMINE_THEN_STOP:
for (auto i: changed) {
JobManager::instance()->add(make_shared<ExamineContentJob>(_film, i, false));
}
set_progress (1);
set_message (_("Some files have been changed since they were added to the project.\n\nThese files will now be re-examined, so you may need to check their settings before trying again."));
set_error (_("Files have changed since they were added to the project."), _("Check their new settings, then try again."));
set_state (FINISHED_ERROR);
return;
case ChangedBehaviour::STOP:
set_progress (1);
set_error(
_("Files have changed since they were added to the project."),
variant::insert_dcpomatic(_("Open the project in %1, check the settings, then save it before trying again."))
);
set_state (FINISHED_ERROR);
return;
default:
LOG_GENERAL_NC (_("Some files have been changed since they were added to the project."));
break;
}
}
LOG_GENERAL_NC (N_("Transcode job starting"));
DCPOMATIC_ASSERT (_encoder);
_encoder->go ();
set_progress (1);
set_state (FINISHED_OK);
LOG_GENERAL(N_("Transcode job completed successfully: %1 fps"), dcp::locale_convert<string>(frames_per_second(), 2, true));
if (variant::count_created_dcps() && dynamic_pointer_cast<DCPFilmEncoder>(_encoder)) {
try {
Analytics::instance()->successful_dcp_encode();
} catch (FileError& e) {
LOG_WARNING (N_("Failed to write analytics (%1)"), e.what());
}
}
post_transcode ();
_encoder.reset ();
} catch (...) {
_encoder.reset ();
throw;
}
}
void
TranscodeJob::pause()
{
_encoder->pause();
}
void TranscodeJob::resume()
{
_encoder->resume();
Job::resume();
}
string
TranscodeJob::status () const
{
if (!_encoder) {
return Job::status ();
}
if (finished() || _encoder->finishing()) {
return Job::status();
}
auto status = String::compose(_("%1; %2/%3 frames"), Job::status(), _encoder->frames_done(), _film->length().frames_round(_film->video_frame_rate()));
if (auto const fps = _encoder->current_rate()) {
/// TRANSLATORS: fps here is an abbreviation for frames per second
status += String::compose(_("; %1 fps"), dcp::locale_convert<string>(*fps, 1, true));
}
return status;
}
/** @return Approximate remaining time in seconds */
int
TranscodeJob::remaining_time () const
{
/* _encoder might be destroyed by the job-runner thread */
auto 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 */
auto 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;
}
float
TranscodeJob::frames_per_second() const
{
if (_finish_time != _start_time) {
return _encoder->frames_done() / (_finish_time - _start_time);
} else {
return 0;
}
}
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