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Diffstat (limited to 'src/lib/j2k_video_encoder.cc')
| -rw-r--r-- | src/lib/j2k_video_encoder.cc | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/src/lib/j2k_video_encoder.cc b/src/lib/j2k_video_encoder.cc deleted file mode 100644 index 0f010b933..000000000 --- a/src/lib/j2k_video_encoder.cc +++ /dev/null @@ -1,259 +0,0 @@ -/* - Copyright (C) 2012 Carl Hetherington <cth@carlh.net> - - This program 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. - - This program 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 this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - -*/ - -/** @file src/j2k_video_encoder.cc - * @brief An encoder which writes JPEG2000 files, where they are video (ie not still). - */ - -#include <sstream> -#include <stdexcept> -#include <iomanip> -#include <iostream> -#include <boost/thread.hpp> -#include <boost/filesystem.hpp> -#include <boost/lexical_cast.hpp> -#include <sndfile.h> -#include <openjpeg.h> -#include "j2k_video_encoder.h" -#include "config.h" -#include "options.h" -#include "exceptions.h" -#include "dcp_video_frame.h" -#include "server.h" -#include "filter.h" -#include "log.h" -#include "cross.h" -#include "film.h" - -using std::string; -using std::stringstream; -using std::list; -using std::vector; -using std::pair; -using std::cout; -using boost::shared_ptr; -using boost::thread; -using boost::lexical_cast; - -J2KVideoEncoder::J2KVideoEncoder (shared_ptr<const Film> f, shared_ptr<const EncodeOptions> o) - : Encoder (f, o) - , _process_end (false) -{ - -} - -J2KVideoEncoder::~J2KVideoEncoder () -{ - terminate_worker_threads (); -} - -void -J2KVideoEncoder::terminate_worker_threads () -{ - boost::mutex::scoped_lock lock (_worker_mutex); - _process_end = true; - _worker_condition.notify_all (); - lock.unlock (); - - for (list<boost::thread *>::iterator i = _worker_threads.begin(); i != _worker_threads.end(); ++i) { - (*i)->join (); - delete *i; - } -} - -void -J2KVideoEncoder::do_process_video (shared_ptr<Image> yuv, shared_ptr<Subtitle> sub) -{ - boost::mutex::scoped_lock lock (_worker_mutex); - - /* Wait until the queue has gone down a bit */ - while (_queue.size() >= _worker_threads.size() * 2 && !_process_end) { - TIMING ("decoder sleeps with queue of %1", _queue.size()); - _worker_condition.wait (lock); - TIMING ("decoder wakes with queue of %1", _queue.size()); - } - - if (_process_end) { - return; - } - - /* Only do the processing if we don't already have a file for this frame */ - if (!boost::filesystem::exists (_opt->frame_out_path (_video_frame, false))) { - pair<string, string> const s = Filter::ffmpeg_strings (_film->filters()); - TIMING ("adding to queue of %1", _queue.size ()); - _queue.push_back (boost::shared_ptr<DCPVideoFrame> ( - new DCPVideoFrame ( - yuv, sub, _opt->out_size, _opt->padding, _film->subtitle_offset(), _film->subtitle_scale(), - _film->scaler(), _video_frame, _film->frames_per_second(), s.second, - Config::instance()->colour_lut_index (), Config::instance()->j2k_bandwidth (), - _film->log() - ) - )); - - _worker_condition.notify_all (); - } else { - frame_skipped (); - } -} - -void -J2KVideoEncoder::encoder_thread (ServerDescription* server) -{ - /* Number of seconds that we currently wait between attempts - to connect to the server; not relevant for localhost - encodings. - */ - int remote_backoff = 0; - - while (1) { - - TIMING ("encoder thread %1 sleeps", boost::this_thread::get_id()); - boost::mutex::scoped_lock lock (_worker_mutex); - while (_queue.empty () && !_process_end) { - _worker_condition.wait (lock); - } - - if (_process_end) { - return; - } - - TIMING ("encoder thread %1 wakes with queue of %2", boost::this_thread::get_id(), _queue.size()); - boost::shared_ptr<DCPVideoFrame> vf = _queue.front (); - _film->log()->log (String::compose ("Encoder thread %1 pops frame %2 from queue", boost::this_thread::get_id(), vf->frame()), Log::VERBOSE); - _queue.pop_front (); - - lock.unlock (); - - shared_ptr<EncodedData> encoded; - - if (server) { - try { - encoded = vf->encode_remotely (server); - - if (remote_backoff > 0) { - _film->log()->log (String::compose ("%1 was lost, but now she is found; removing backoff", server->host_name ())); - } - - /* This job succeeded, so remove any backoff */ - remote_backoff = 0; - - } catch (std::exception& e) { - if (remote_backoff < 60) { - /* back off more */ - remote_backoff += 10; - } - _film->log()->log ( - String::compose ( - "Remote encode of %1 on %2 failed (%3); thread sleeping for %4s", - vf->frame(), server->host_name(), e.what(), remote_backoff) - ); - } - - } else { - try { - TIMING ("encoder thread %1 begins local encode of %2", boost::this_thread::get_id(), vf->frame()); - encoded = vf->encode_locally (); - TIMING ("encoder thread %1 finishes local encode of %2", boost::this_thread::get_id(), vf->frame()); - } catch (std::exception& e) { - _film->log()->log (String::compose ("Local encode failed (%1)", e.what ())); - } - } - - if (encoded) { - encoded->write (_opt, vf->frame ()); - frame_done (); - } else { - lock.lock (); - _film->log()->log ( - String::compose ("Encoder thread %1 pushes frame %2 back onto queue after failure", boost::this_thread::get_id(), vf->frame()) - ); - _queue.push_front (vf); - lock.unlock (); - } - - if (remote_backoff > 0) { - dvdomatic_sleep (remote_backoff); - } - - lock.lock (); - _worker_condition.notify_all (); - } -} - -void -J2KVideoEncoder::process_begin () -{ - Encoder::process_begin (); - - for (int i = 0; i < Config::instance()->num_local_encoding_threads (); ++i) { - _worker_threads.push_back (new boost::thread (boost::bind (&J2KVideoEncoder::encoder_thread, this, (ServerDescription *) 0))); - } - - vector<ServerDescription*> servers = Config::instance()->servers (); - - for (vector<ServerDescription*>::iterator i = servers.begin(); i != servers.end(); ++i) { - for (int j = 0; j < (*i)->threads (); ++j) { - _worker_threads.push_back (new boost::thread (boost::bind (&J2KVideoEncoder::encoder_thread, this, *i))); - } - } -} - -void -J2KVideoEncoder::process_end () -{ - Encoder::process_end (); - - boost::mutex::scoped_lock lock (_worker_mutex); - - _film->log()->log ("Clearing queue of " + lexical_cast<string> (_queue.size ())); - - /* Keep waking workers until the queue is empty */ - while (!_queue.empty ()) { - _film->log()->log ("Waking with " + lexical_cast<string> (_queue.size ()), Log::VERBOSE); - _worker_condition.notify_all (); - _worker_condition.wait (lock); - } - - lock.unlock (); - - terminate_worker_threads (); - - _film->log()->log ("Mopping up " + lexical_cast<string> (_queue.size())); - - /* The following sequence of events can occur in the above code: - 1. a remote worker takes the last image off the queue - 2. the loop above terminates - 3. the remote worker fails to encode the image and puts it back on the queue - 4. the remote worker is then terminated by terminate_worker_threads - - So just mop up anything left in the queue here. - */ - - for (list<shared_ptr<DCPVideoFrame> >::iterator i = _queue.begin(); i != _queue.end(); ++i) { - _film->log()->log (String::compose ("Encode left-over frame %1", (*i)->frame ())); - try { - shared_ptr<EncodedData> e = (*i)->encode_locally (); - e->write (_opt, (*i)->frame ()); - frame_done (); - } catch (std::exception& e) { - _film->log()->log (String::compose ("Local encode failed (%1)", e.what ())); - } - } -} - |
