/* * 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 * 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_QSVDEC_H #define AVCODEC_QSVDEC_H #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_init(AVCodecContext *s, QSVContext *q, AVPacket *avpkt); 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 */