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#include "config.h"
#include "cross.h"
#include "dcp_video.h"
#include "dcpomatic_log.h"
#include "dcpomatic_socket.h"
#include "encode_server_description.h"
#include "j2k_encoder_remote_backend.h"
#include "player_video.h"
#include "warnings.h"
#include <dcp/raw_convert.h>
DCPOMATIC_DISABLE_WARNINGS
#include <libxml++/libxml++.h>
DCPOMATIC_ENABLE_WARNINGS
#include <boost/asio.hpp>
#include <boost/thread.hpp>
#include "i18n.h"
using std::string;
using std::vector;
using boost::optional;
using boost::shared_ptr;
using dcp::Data;
using dcp::raw_convert;
J2KEncoderRemoteBackend::J2KEncoderRemoteBackend (EncodeServerDescription server)
: _server (server)
, _backoff (0)
{
}
vector<Data>
J2KEncoderRemoteBackend::encode (vector<shared_ptr<DCPVideo> > all_video)
{
DCPOMATIC_ASSERT (all_video.size() == 1);
shared_ptr<DCPVideo> video = all_video.front();
int const timeout = 30;
try {
boost::asio::io_service io_service;
boost::asio::ip::tcp::resolver resolver (io_service);
boost::asio::ip::tcp::resolver::query query (_server.host_name(), raw_convert<string>(ENCODE_FRAME_PORT));
boost::asio::ip::tcp::resolver::iterator endpoint_iterator = resolver.resolve (query);
shared_ptr<Socket> socket (new Socket(timeout));
socket->connect (*endpoint_iterator);
/* Collect all XML metadata */
xmlpp::Document doc;
xmlpp::Element* root = doc.create_root_node ("EncodingRequest");
root->add_child("Version")->add_child_text(raw_convert<string> (SERVER_LINK_VERSION));
video->add_metadata (root);
LOG_DEBUG_ENCODE (N_("Sending frame %1 to remote"), video->index());
{
Socket::WriteDigestScope ds (socket);
/* Send XML metadata */
string xml = doc.write_to_string ("UTF-8");
socket->write (xml.length() + 1);
socket->write ((uint8_t *) xml.c_str(), xml.length() + 1);
/* Send binary data */
LOG_TIMING("start-remote-send thread=%1", thread_id());
video->frame()->write_to_socket(socket);
}
/* Read the response (JPEG2000-encoded data); this blocks until the data
is ready and sent back.
*/
Socket::ReadDigestScope ds (socket);
LOG_TIMING("start-remote-encode thread=%1", thread_id());
Data e (socket->read_uint32 ());
LOG_TIMING("start-remote-receive thread=%1", thread_id());
socket->read (e.data().get(), e.size());
LOG_TIMING("finish-remote-receive thread=%1", thread_id());
if (!ds.check()) {
throw NetworkError ("Checksums do not match");
}
LOG_DEBUG_ENCODE (N_("Finished remotely-encoded frame %1"), video->index());
if (_backoff > 0) {
LOG_GENERAL ("%1 was lost, but now she is found; removing backoff", _server.host_name());
}
/* This job succeeded, so remove any backoff */
_backoff = 0;
vector<Data> data;
data.push_back(e);
return data;
} catch (std::exception& e) {
if (_backoff < 60) {
_backoff += 10;
}
LOG_ERROR (
N_("Remote encode of %1 on %2 failed (%3); thread sleeping for %4s"),
video->index(), _server.host_name(), e.what(), _backoff
);
boost::this_thread::sleep (boost::posix_time::seconds(_backoff));
return vector<Data>();
}
}
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