Files
oak-editor/app/render/backend/renderworker.cpp
T

151 lines
3.7 KiB
C++

/***
Olive - Non-Linear Video Editor
Copyright (C) 2019 Olive Team
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 3 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, see <http://www.gnu.org/licenses/>.
***/
#include "renderworker.h"
#include <QThread>
#include "node/block/block.h"
OLIVE_NAMESPACE_ENTER
RenderWorker::RenderWorker(QObject *parent) :
QObject(parent),
started_(false)
{
}
bool RenderWorker::Init()
{
if (started_) {
return true;
}
if (!(started_ = InitInternal())) {
Close();
}
return started_;
}
void RenderWorker::Close()
{
CloseInternal();
decoder_cache_.Clear();
started_ = false;
}
void RenderWorker::Render(NodeDependency path, qint64 job_time)
{
path_ = path;
emit CompletedCache(path, RenderInternal(path, job_time), job_time);
}
NodeValueTable RenderWorker::RenderInternal(const NodeDependency &path, const qint64 &job_time)
{
Q_UNUSED(job_time)
return ProcessNode(path);
}
void RenderWorker::RunNodeAccelerated(const Node *node, const TimeRange &range, NodeValueDatabase &input_params, NodeValueTable& output_params)
{
Q_UNUSED(node)
Q_UNUSED(range)
Q_UNUSED(input_params)
Q_UNUSED(output_params)
}
StreamPtr RenderWorker::ResolveStreamFromInput(NodeInput *input)
{
return input->get_standard_value().value<StreamPtr>();
}
DecoderPtr RenderWorker::ResolveDecoderFromInput(StreamPtr stream)
{
// Access a map of Node inputs and decoder instances and retrieve a frame!
DecoderPtr decoder = decoder_cache_.Get(stream.get());
if (!decoder && stream) {
// Create a new Decoder here
decoder = Decoder::CreateFromID(stream->footage()->decoder());
decoder->set_stream(stream);
if (decoder->Open()) {
decoder_cache_.Add(stream.get(), decoder);
} else {
decoder = nullptr;
qWarning() << "Failed to open decoder for" << stream->footage()->filename() << "::" << stream->index();
}
}
return decoder;
}
bool RenderWorker::IsStarted()
{
return started_;
}
void RenderWorker::ReportUnavailableFootage(StreamPtr stream, Decoder::RetrieveState state, const rational& stream_time)
{
emit FootageUnavailable(stream, state, path_.range(), stream_time);
}
void RenderWorker::InputProcessingEvent(NodeInput* input, const TimeRange& input_time, NodeValueTable *table)
{
// Exception for Footage types where we actually retrieve some Footage data from a decoder
if (input->data_type() == NodeParam::kFootage) {
StreamPtr stream = ResolveStreamFromInput(input);
if (stream) {
DecoderPtr decoder = ResolveDecoderFromInput(stream);
if (decoder) {
Decoder::RetrieveState state = decoder->GetRetrieveState(input_time.out());
if (state == Decoder::kReady) {
FrameToValue(decoder, stream, input_time, table);
} else {
ReportUnavailableFootage(stream, state, input_time.out());
}
}
}
}
}
void RenderWorker::ProcessNodeEvent(const Node *node, const TimeRange &range, NodeValueDatabase &input_params, NodeValueTable &output_params)
{
// Check if we have a shader for this output
RunNodeAccelerated(node, range, input_params, output_params);
}
const NodeDependency &RenderWorker::CurrentPath() const
{
return path_;
}
OLIVE_NAMESPACE_EXIT