/***

  Olive - Non-Linear Video Editor
  Copyright (C) 2022 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 OIIODECODER_H
#define OIIODECODER_H

#include <OpenImageIO/imageio.h>
#include <OpenImageIO/imagebuf.h>

#include "codec/decoder.h"

namespace olive
{

class OIIODecoder : public Decoder {
	Q_OBJECT
public:
	OIIODecoder();

	DECODER_DEFAULT_DESTRUCTOR(OIIODecoder)

	virtual QString id() const override;

	virtual bool SupportsVideo() override
	{
		return true;
	}

	virtual FootageDescription Probe(const QString &filename,
									 CancelAtom *cancelled) const override;

protected:
	virtual bool OpenInternal() override;
	virtual TexturePtr
	RetrieveVideoInternal(const RetrieveVideoParams &p) override;
	virtual void CloseInternal() override;

private:
	std::unique_ptr<OIIO::ImageInput> image_;

	static bool FileTypeIsSupported(const QString &fn);

	bool OpenImageHandler(const QString &fn, int subimage);

	void CloseImageHandle();

	static VideoParams GetVideoParamsFromImageSpec(const OIIO::ImageSpec &spec);

	PixelFormat pix_fmt_;
	OIIO::TypeDesc::BASETYPE oiio_pix_fmt_;

	Frame buffer_;
	RetrieveVideoParams last_params_;

	static QStringList supported_formats_;
};

}

#endif // OIIODECODER_H