blob: 97a3315b75b5e8d85b7f85af26911a097b110e4c [file] [log] [blame]
* Intel MediaSDK QSV utility functions
* copyright (c) 2013 Luca Barbato
* 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
* 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
#include <stdint.h>
#include <sys/types.h>
#include <mfx/mfxvideo.h>
#include "libavutil/fifo.h"
#include "libavutil/frame.h"
#include "libavutil/pixfmt.h"
#include "avcodec.h"
#include "qsv_internal.h"
typedef struct QSVContext {
// the session used for decoding
mfxSession session;
// the session we allocated internally, in case the caller did not provide
// one
QSVSession internal_qs;
* a linked list of frames currently being used by QSV
QSVFrame *work_frames;
AVFifoBuffer *async_fifo;
AVFifoBuffer *input_fifo;
// we should to buffer input packets at some cases
// else it is not possible to handle dynamic stream changes correctly
// this fifo uses for input packets buffering
AVFifoBuffer *pkt_fifo;
// this flag indicates that header parsed,
// decoder instance created and ready to general decoding
int engine_ready;
// we can not just re-init decoder if different sequence header arrived
// we should to deliver all buffered frames but we can not decode new packets
// this time. So when reinit_pending is non-zero we flushing decoder and
// accumulate new arrived packets into pkt_fifo
int reinit_pending;
// options set by the caller
int async_depth;
int iopattern;
char *load_plugins;
mfxExtBuffer **ext_buffers;
int nb_ext_buffers;
} QSVContext;
int ff_qsv_map_pixfmt(enum AVPixelFormat format);
int ff_qsv_decode(AVCodecContext *s, QSVContext *q,
AVFrame *frame, int *got_frame,
AVPacket *avpkt);
void ff_qsv_decode_reset(AVCodecContext *avctx, QSVContext *q);
int ff_qsv_decode_close(QSVContext *q);
#endif /* AVCODEC_QSVDEC_H */