/*
 * Copyright 2003-2020 The Music Player Daemon Project
 * http://www.musicpd.org
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#ifndef MPD_FFMPEG_FRAME_HXX
#define MPD_FFMPEG_FRAME_HXX

#include "Error.hxx"

extern "C" {
#include <libavutil/frame.h>
}

#include <new>

namespace Ffmpeg {

class Frame {
	AVFrame *frame;

public:
	Frame():frame(av_frame_alloc()) {
		if (frame == nullptr)
			throw std::bad_alloc();
	}

	~Frame() noexcept {
		av_frame_free(&frame);
	}

	Frame(const Frame &) = delete;
	Frame &operator=(const Frame &) = delete;

	AVFrame &operator*() noexcept {
		return *frame;
	}

	AVFrame *operator->() noexcept {
		return frame;
	}

	AVFrame *get() noexcept {
		return frame;
	}

	void Unref() noexcept {
		av_frame_unref(frame);
	}

	void GetBuffer() {
		int err = av_frame_get_buffer(frame, 0);
		if (err < 0)
			throw MakeFfmpegError(err, "av_frame_get_buffer() failed");
	}

	void MakeWritable() {
		int err = av_frame_make_writable(frame);
		if (err < 0)
			throw MakeFfmpegError(err, "av_frame_make_writable() failed");
	}

	void *GetData(unsigned plane) noexcept {
		return frame->data[plane];
	}
};

} // namespace Ffmpeg

#endif
