From 4e08c821106fc1d6d358864abf0d8488b12f38c6 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Tue, 10 Feb 2015 10:40:59 +0100 Subject: lavc: add an Intel libmfx-based H.264 decoder Based on the code by Luca Barbato and Yukinori Yamazoe . --- libavcodec/qsv_internal.h | 86 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 libavcodec/qsv_internal.h (limited to 'libavcodec/qsv_internal.h') diff --git a/libavcodec/qsv_internal.h b/libavcodec/qsv_internal.h new file mode 100644 index 0000000000..8ab149a797 --- /dev/null +++ b/libavcodec/qsv_internal.h @@ -0,0 +1,86 @@ +/* + * 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_QSV_INTERNAL_H +#define AVCODEC_QSV_INTERNAL_H + +#include +#include + +#include + +#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_QSV_INTERNAL_H */ -- cgit v1.2.3