tdesktop/Telegram/SourceFiles/media/streaming/media_streaming_loader_local.h

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2019-03-04 12:26:29 +00:00
/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "media/streaming/media_streaming_loader.h"
#include "mtproto/sender.h"
#include "data/data_file_origin.h"
class ApiWrap;
namespace Media {
namespace Streaming {
class LoaderLocal : public Loader, public base::has_weak_ptr {
public:
LoaderLocal(std::unique_ptr<QIODevice> device);
[[nodiscard]] auto baseCacheKey() const
->std::optional<Storage::Cache::Key> override;
[[nodiscard]] int size() const override;
void load(int offset) override;
void cancel(int offset) override;
void increasePriority() override;
void stop() override;
// Parts will be sent from the main thread.
[[nodiscard]] rpl::producer<LoadedPart> parts() const override;
private:
void fail();
const std::unique_ptr<QIODevice> _device;
const int _size = 0;
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rpl::event_stream<LoadedPart> _parts;
};
std::unique_ptr<LoaderLocal> MakeFileLoader(const QString &path);
std::unique_ptr<LoaderLocal> MakeBytesLoader(const QByteArray &bytes);
} // namespace Streaming
} // namespace Media