104 lines
3.1 KiB
C++
104 lines
3.1 KiB
C++
#ifndef VIDEORENDERWORKER_H
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#define VIDEORENDERWORKER_H
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#include <QCryptographicHash>
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#include "colorprocessorcache.h"
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#include "node/dependency.h"
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#include "render/videoparams.h"
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#include "renderworker.h"
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#include "videorenderframecache.h"
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class VideoRenderWorker : public RenderWorker {
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Q_OBJECT
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public:
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/**
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* @brief VideoRenderWorker uses hashes to recognize frames that are identical to others in the render queue
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*
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* This mode can modify the behavior of the worker, either to disable hash verification or only generate hashes and
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* not render. These are only used in the context of exporting.
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*
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* These are also flags that can be or'd together, mostly for the convenience of checking which functionalities are
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* disabled and enabled.
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*/
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enum OperatingMode {
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/// Generate hashes but don't render or download anything
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kHashOnly = 0x1,
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/// Render but don't download or hash
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kRenderOnly = 0x2,
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/// Enable download (NEVER USE THIS ON ITS OWN, this is only here for checking flags, download-only mode makes no sense)
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kDownloadOnly = 0x4,
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/// Use hash verification and render, but don't cache any frames to disk
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kHashAndRenderOnly = 0x3,
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/// Render and download, but don't use hash verification
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kRenderAndCacheOnly = 0x6,
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/// Render and use hashes to identify exact matches (default)
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kHashRenderCache = 0x7
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};
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VideoRenderWorker(VideoRenderFrameCache* frame_cache, DecoderCache *decoder_cache, QObject* parent = nullptr);
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void SetParameters(const VideoRenderingParams& video_params);
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void SetOperatingMode(const OperatingMode& mode);
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signals:
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void CompletedFrame(NodeDependency CurrentPath, qint64 job_time, QByteArray hash, QVariant value);
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void CompletedDownload(NodeDependency CurrentPath, qint64 job_time, QByteArray hash, bool texture_existed);
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void HashAlreadyBeingCached(NodeDependency CurrentPath, qint64 job_time, QByteArray hash);
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void HashAlreadyExists(NodeDependency CurrentPath, qint64 job_time, QByteArray hash);
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void Aborted();
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protected:
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virtual bool InitInternal() override;
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virtual void CloseInternal() override;
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const VideoRenderingParams& video_params();
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virtual void ParametersChangedEvent(){}
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virtual void TextureToBuffer(const QVariant& texture, QByteArray& buffer) = 0;
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virtual NodeValueTable RenderInternal(const NodeDependency& CurrentPath, const qint64& job_time) override;
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virtual FramePtr RetrieveFromDecoder(DecoderPtr decoder, const TimeRange& range) override;
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virtual NodeValueTable RenderBlock(const TrackOutput *track, const TimeRange& range) override;
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virtual void ReportUnavailableFootage(StreamPtr stream, Decoder::RetrieveState state, const rational& stream_time) override;
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ColorProcessorCache* color_cache();
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private:
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void HashNodeRecursively(QCryptographicHash* hash, const Node *n, const rational &time);
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void Download(QVariant texture, QString filename);
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void ResizeDownloadBuffer();
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VideoRenderingParams video_params_;
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VideoRenderFrameCache* frame_cache_;
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ColorProcessorCache color_cache_;
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QByteArray download_buffer_;
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OperatingMode operating_mode_;
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private slots:
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};
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#endif // VIDEORENDERWORKER_H
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