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oak-editor/app/render/backend/renderbackend.h
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/***
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/>.
***/
#ifndef RENDERBACKEND_H
#define RENDERBACKEND_H
#include <QtConcurrent/QtConcurrent>
#include "dialog/rendercancel/rendercancel.h"
#include "decodercache.h"
#include "node/graph.h"
#include "node/output/viewer/viewer.h"
#include "render/backend/colorprocessorcache.h"
#include "renderworker.h"
OLIVE_NAMESPACE_ENTER
class RenderBackend : public QObject
{
Q_OBJECT
public:
RenderBackend(QObject* parent = nullptr);
virtual ~RenderBackend() override;
void SetViewerNode(ViewerOutput* viewer_node);
void CancelQueue();
/**
* @brief Asynchronously generate a hash at a given time
*/
QFuture<QByteArray> Hash(const rational& time, bool block_for_update);
/**
* @brief Asynchronously generate a frame at a given time
*/
QFuture<FramePtr> RenderFrame(const rational& time, bool clear_queue, bool block_for_update);
/**
* @brief Asynchronously generate a chunk of audio
*/
QFuture<SampleBufferPtr> RenderAudio(const TimeRange& r, bool block_for_update);
void SetVideoParams(const VideoRenderingParams& params);
void SetAudioParams(const AudioRenderingParams& params);
void SetVideoDownloadMatrix(const QMatrix4x4& mat);
void SetAutomaticAudio(bool e);
void WorkerStartedRenderingAudio(const TimeRange& r);
static QList<TimeRange> SplitRangeIntoChunks(const TimeRange& r);
public slots:
void NodeGraphChanged(NodeInput *source);
void UpdateInstance(OLIVE_NAMESPACE::RenderWorker* instance);
protected:
virtual RenderWorker* CreateNewWorker() = 0;
void Close();
private:
struct RenderPool {
QVector<RenderWorker*> instances;
int queuer;
QThreadPool threads;
void Init(ViewerOutput *v);
void Queue(NodeInput* input);
void Close();
void Destroy();
};
RenderWorker *GetInstanceFromPool(RenderPool &pool);
ViewerOutput* viewer_node_;
//RenderCancelDialog* cancel_dialog_;
RenderPool video_pool_;
RenderPool audio_pool_;
RenderPool hash_pool_;
QMutex queued_audio_lock_;
TimeRangeList queued_audio_;
bool auto_audio_;
// VIDEO MEMBERS
VideoRenderingParams video_params_;
QMatrix4x4 video_download_matrix_;
// AUDIO MEMBERS
AudioRenderingParams audio_params_;
QHash< QFutureWatcher<SampleBufferPtr>*, TimeRange > audio_jobs_;
struct ConformWaitInfo {
StreamPtr stream;
AudioRenderingParams params;
TimeRange affected_range;
rational stream_time;
bool operator==(const ConformWaitInfo& rhs) const;
};
QList<ConformWaitInfo> conform_wait_info_;
void ListenForConformSignal(AudioStreamPtr s);
void StopListeningForConformSignal(AudioStream *s);
bool ic_from_conform_;
private slots:
void AudioConformUnavailable(StreamPtr stream, TimeRange range,
rational stream_time, AudioRenderingParams params);
void AudioConformUpdated(OLIVE_NAMESPACE::AudioRenderingParams params);
void AudioInvalidated(const TimeRange &r);
void AudioRendered();
void WorkerFinished();
};
OLIVE_NAMESPACE_EXIT
#endif // RENDERBACKEND_H