FFmpeg/libavfilter/qsvvpp.h

/*
 * 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
 */

/**
 * @file
 * Intel Quick Sync Video VPP base function
 */

#ifndef AVFILTER_QSVVPP_H
#define AVFILTER_QSVVPP_H

#include <mfx/mfxvideo.h>

#include "avfilter.h"

#define FF_INLINK_IDX(link)  ((int)((link)->dstpad - (link)->dst->input_pads))
#define FF_OUTLINK_IDX(link) ((int)((link)->srcpad - (link)->src->output_pads))

typedef struct QSVVPPContext QSVVPPContext;

typedef struct QSVVPPCrop {
    int in_idx;        ///< Input index
    int x, y, w, h;    ///< Crop rectangle
} QSVVPPCrop;

typedef struct QSVVPPParam {
    /* default is ff_filter_frame */
    int (*filter_frame)(AVFilterLink *outlink, AVFrame *frame);

    /* To fill with MFX enhanced filter configurations */
    int num_ext_buf;
    mfxExtBuffer **ext_buf;

    /* Real output format */
    enum AVPixelFormat out_sw_format;

    /* Crop information for each input, if needed */
    int num_crop;
    QSVVPPCrop *crop;
} QSVVPPParam;

/* create and initialize the QSV session */
int ff_qsvvpp_create(AVFilterContext *avctx, QSVVPPContext **vpp, QSVVPPParam *param);

/* release the resources (eg.surfaces) */
int ff_qsvvpp_free(QSVVPPContext **vpp);

/* vpp filter frame and call the cb if needed */
int ff_qsvvpp_filter_frame(QSVVPPContext *vpp, AVFilterLink *inlink, AVFrame *frame);

#endif /* AVFILTER_QSVVPP_H */