/*
 * Intel MediaSDK QSV encoder/decoder shared code
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVCODEC_QSV_INTERNAL_H
#define AVCODEC_QSV_INTERNAL_H

#if CONFIG_VAAPI
#define AVCODEC_QSV_LINUX_SESSION_HANDLE
#endif //CONFIG_VAAPI

#ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <va/va.h>
#include <va/va_drm.h>
#endif

#include <mfx/mfxvideo.h>

#include "libavutil/frame.h"

#include "avcodec.h"

#define QSV_VERSION_MAJOR 1
#define QSV_VERSION_MINOR 9

#define ASYNC_DEPTH_DEFAULT 4       // internal parallelism

#define QSV_MAX_ENC_PAYLOAD 2       // # of mfxEncodeCtrl payloads supported

#define QSV_VERSION_ATLEAST(MAJOR, MINOR)   \
    (MFX_VERSION_MAJOR > (MAJOR) ||         \
     MFX_VERSION_MAJOR == (MAJOR) && MFX_VERSION_MINOR >= (MINOR))

typedef struct QSVFrame {
    AVFrame *frame;
    mfxFrameSurface1 *surface;
    mfxEncodeCtrl enc_ctrl;

    mfxFrameSurface1 surface_internal;

    int queued;

    struct QSVFrame *next;
} QSVFrame;

typedef struct QSVSession {
    mfxSession session;
#ifdef AVCODEC_QSV_LINUX_SESSION_HANDLE
    int        fd_display;
    VADisplay  va_display;
#endif
} QSVSession;

/**
 * Convert a libmfx error code into a ffmpeg error code.
 */
int ff_qsv_error(int mfx_err);

int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id);

int ff_qsv_init_internal_session(AVCodecContext *avctx, QSVSession *qs,
                                 const char *load_plugins);
int ff_qsv_close_internal_session(QSVSession *qs);

#endif /* AVCODEC_QSV_INTERNAL_H */
