92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* Intel MediaSDK QSV utility functions
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*
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* copyright (c) 2013 Luca Barbato
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef AVCODEC_QSVDEC_H
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#define AVCODEC_QSVDEC_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <mfx/mfxvideo.h>
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#include "libavutil/fifo.h"
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#include "libavutil/frame.h"
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#include "libavutil/pixfmt.h"
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#include "avcodec.h"
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#include "qsv_internal.h"
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typedef struct QSVContext {
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// the session used for decoding
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mfxSession session;
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// the session we allocated internally, in case the caller did not provide
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// one
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QSVSession internal_qs;
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/**
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* a linked list of frames currently being used by QSV
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*/
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QSVFrame *work_frames;
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AVFifoBuffer *async_fifo;
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AVFifoBuffer *input_fifo;
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// we should to buffer input packets at some cases
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// else it is not possible to handle dynamic stream changes correctly
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// this fifo uses for input packets buffering
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AVFifoBuffer *pkt_fifo;
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// this flag indicates that header parsed,
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// decoder instance created and ready to general decoding
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int engine_ready;
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// we can not just re-init decoder if different sequence header arrived
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// we should to deliver all buffered frames but we can not decode new packets
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// this time. So when reinit_pending is non-zero we flushing decoder and
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// accumulate new arrived packets into pkt_fifo
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int reinit_pending;
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// options set by the caller
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int async_depth;
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int iopattern;
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char *load_plugins;
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mfxExtBuffer **ext_buffers;
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int nb_ext_buffers;
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} QSVContext;
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int ff_qsv_map_pixfmt(enum AVPixelFormat format);
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int ff_qsv_decode_init(AVCodecContext *s, QSVContext *q, AVPacket *avpkt);
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int ff_qsv_decode(AVCodecContext *s, QSVContext *q,
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AVFrame *frame, int *got_frame,
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AVPacket *avpkt);
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void ff_qsv_decode_reset(AVCodecContext *avctx, QSVContext *q);
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int ff_qsv_decode_close(QSVContext *q);
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#endif /* AVCODEC_QSVDEC_H */
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