Files
lms/ui/resource/AvConvTranscodeStreamResource.cpp
T
2014-09-23 13:10:19 +02:00

101 lines
2.9 KiB
C++

/*
* Copyright (C) 2013 Emeric Poupon
*
* This file is part of LMS.
*
* LMS 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 3 of the License, or
* (at your option) any later version.
*
* LMS 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 LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Wt/Http/Request>
#include <Wt/Http/Response>
#include "logger/Logger.hpp"
#include "AvConvTranscodeStreamResource.hpp"
namespace UserInterface {
AvConvTranscodeStreamResource::AvConvTranscodeStreamResource(const Transcode::Parameters& parameters, Wt::WObject *parent)
: Wt::WResource(parent),
_parameters( parameters )
{
LMS_LOG(MOD_UI, SEV_DEBUG) << "CONSTRUCTING RESOURCE";
}
AvConvTranscodeStreamResource::~AvConvTranscodeStreamResource()
{
LMS_LOG(MOD_UI, SEV_DEBUG) << "DESTRUCTING RESOURCE";
beingDeleted();
}
void
AvConvTranscodeStreamResource::handleRequest(const Wt::Http::Request& request,
Wt::Http::Response& response)
{
// see if this request is for a continuation:
Wt::Http::ResponseContinuation *continuation = request.continuation();
std::shared_ptr<Transcode::AvConvTranscoder> transcoder;
if (continuation)
transcoder = boost::any_cast<std::shared_ptr<Transcode::AvConvTranscoder> >(continuation->data());
if (!transcoder)
{
LMS_LOG(MOD_UI, SEV_DEBUG) << "Launching transcoder";
transcoder = std::make_shared<Transcode::AvConvTranscoder>( _parameters);
response.setMimeType(_parameters.getOutputFormat().getMimeType());
}
Transcode::AvConvTranscoder::data_type& data = transcoder->getOutputData();
while (!transcoder->isComplete() && data.size() < _bufferSize)
transcoder->process();
// Give the client all the output data
Transcode::AvConvTranscoder::data_type::const_iterator it = data.begin();
bool copySuccess = true;
std::size_t copiedSize = 0;
for (Transcode::AvConvTranscoder::data_type::const_iterator it = data.begin(); it != data.end(); ++it)
{
if (!response.out().put(*it)) {
copySuccess = false;
break;
}
else
copiedSize++;
}
LMS_LOG(MOD_UI, SEV_DEBUG) << "Wrote " << copiedSize << " bytes";
if (!copySuccess)
LMS_LOG(MOD_UI, SEV_ERROR) << "** Write failed!";
// Consume copied bytes
data.erase(data.begin(), data.begin() + copiedSize);
if (copySuccess && !transcoder->isComplete()) {
continuation = response.createContinuation();
continuation->setData(transcoder);
LMS_LOG(MOD_UI, SEV_DEBUG) << "Continuation set!";
}
else
LMS_LOG(MOD_UI, SEV_DEBUG) << "No more data!";
}
} // namespace UserInterface