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ffmpeg-4.2.2/libavcodec/vaapi.h 2.24 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Video Acceleration API (shared data between FFmpeg and the video player)
   * HW decode acceleration for MPEG-2, MPEG-4, H.264 and VC-1
   *
   * Copyright (C) 2008-2009 Splitted-Desktop Systems
   *
   * 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_VAAPI_H
  #define AVCODEC_VAAPI_H
  
  /**
   * @file
   * @ingroup lavc_codec_hwaccel_vaapi
   * Public libavcodec VA API header.
   */
  
  #include <stdint.h>
  #include "libavutil/attributes.h"
  #include "version.h"
  
  #if FF_API_STRUCT_VAAPI_CONTEXT
  
  /**
   * @defgroup lavc_codec_hwaccel_vaapi VA API Decoding
   * @ingroup lavc_codec_hwaccel
   * @{
   */
  
  /**
   * This structure is used to share data between the FFmpeg library and
   * the client video application.
   * This shall be zero-allocated and available as
   * AVCodecContext.hwaccel_context. All user members can be set once
   * during initialization or through each AVCodecContext.get_buffer()
   * function call. In any case, they must be valid prior to calling
   * decoding functions.
   *
   * Deprecated: use AVCodecContext.hw_frames_ctx instead.
   */
  struct attribute_deprecated vaapi_context {
      /**
       * Window system dependent data
       *
       * - encoding: unused
       * - decoding: Set by user
       */
      void *display;
  
      /**
       * Configuration ID
       *
       * - encoding: unused
       * - decoding: Set by user
       */
      uint32_t config_id;
  
      /**
       * Context ID (video decode pipeline)
       *
       * - encoding: unused
       * - decoding: Set by user
       */
      uint32_t context_id;
  };
  
  /* @} */
  
  #endif /* FF_API_STRUCT_VAAPI_CONTEXT */
  
  #endif /* AVCODEC_VAAPI_H */