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/*
* Intel MediaSDK QSV utility functions
*
* copyright (c) 2013 Luca Barbato
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_QSVDEC_H
#define AVCODEC_QSVDEC_H
#include <stdint.h>
#include <sys/types.h>
#include <mfx/mfxvideo.h>
#include "libavutil/frame.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#define QSV_VERSION_MAJOR 1
#define QSV_VERSION_MINOR 1
#define ASYNC_DEPTH_DEFAULT 4 // internal parallelism
typedef struct QSVFrame {
AVFrame *frame;
mfxFrameSurface1 *surface;
mfxFrameSurface1 surface_internal;
struct QSVFrame *next;
} QSVFrame;
typedef struct QSVContext {
// the session used for decoding
mfxSession session;
// the session we allocated internally, in case the caller did not provide
// one
mfxSession internal_session;
/**
* a linked list of frames currently being used by QSV
*/
QSVFrame *work_frames;
// options set by the caller
int async_depth;
int iopattern;
mfxExtBuffer **ext_buffers;
int nb_ext_buffers;
} QSVContext;
/**
* Convert a libmfx error code into a libav error code.
*/
int ff_qsv_error(int mfx_err);
int ff_qsv_map_pixfmt(enum AVPixelFormat format);
int ff_qsv_init(AVCodecContext *s, QSVContext *q, mfxSession session);
int ff_qsv_decode(AVCodecContext *s, QSVContext *q,
AVFrame *frame, int *got_frame,
AVPacket *avpkt);
int ff_qsv_close(QSVContext *q);
#endif /* AVCODEC_QSVDEC_H */
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