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ffmpeg-4.2.2/libavcodec/qsv_internal.h 3.51 KB
aac5773f   hucm   功能基本完成,接口待打磨
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  /*
   * Intel MediaSDK QSV encoder/decoder shared code
   *
   * 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_QSV_INTERNAL_H
  #define AVCODEC_QSV_INTERNAL_H
  
  #include <mfx/mfxvideo.h>
  
  #include "libavutil/frame.h"
  
  #include "avcodec.h"
  
  #define QSV_VERSION_MAJOR 1
  #define QSV_VERSION_MINOR 1
  
  #define ASYNC_DEPTH_DEFAULT 4       // internal parallelism
  
  #define QSV_MAX_ENC_PAYLOAD 2       // # of mfxEncodeCtrl payloads supported
  
  #define QSV_VERSION_ATLEAST(MAJOR, MINOR)   \
      (MFX_VERSION_MAJOR > (MAJOR) ||         \
       MFX_VERSION_MAJOR == (MAJOR) && MFX_VERSION_MINOR >= (MINOR))
  
  #define QSV_RUNTIME_VERSION_ATLEAST(MFX_VERSION, MAJOR, MINOR) \
      ((MFX_VERSION.Major > (MAJOR)) ||                           \
      (MFX_VERSION.Major == (MAJOR) && MFX_VERSION.Minor >= (MINOR)))
  
  typedef struct QSVMid {
      AVBufferRef *hw_frames_ref;
      mfxHDL handle;
  
      AVFrame *locked_frame;
      AVFrame *hw_frame;
      mfxFrameSurface1 surf;
  } QSVMid;
  
  typedef struct QSVFrame {
      AVFrame *frame;
      mfxFrameSurface1 surface;
      mfxEncodeCtrl enc_ctrl;
      mfxExtDecodedFrameInfo dec_info;
      mfxExtBuffer *ext_param;
  
      int queued;
      int used;
  
      struct QSVFrame *next;
  } QSVFrame;
  
  typedef struct QSVFramesContext {
      AVBufferRef *hw_frames_ctx;
      void *logctx;
  
      /* The memory ids for the external frames.
       * Refcounted, since we need one reference owned by the QSVFramesContext
       * (i.e. by the encoder/decoder) and another one given to the MFX session
       * from the frame allocator. */
      AVBufferRef *mids_buf;
      QSVMid *mids;
      int  nb_mids;
  } QSVFramesContext;
  
  /**
   * Convert a libmfx error code into an ffmpeg error code.
   */
  int ff_qsv_map_error(mfxStatus mfx_err, const char **desc);
  
  int ff_qsv_print_error(void *log_ctx, mfxStatus err,
                         const char *error_string);
  
  int ff_qsv_print_warning(void *log_ctx, mfxStatus err,
                           const char *warning_string);
  
  int ff_qsv_codec_id_to_mfx(enum AVCodecID codec_id);
  int ff_qsv_profile_to_mfx(enum AVCodecID codec_id, int profile);
  int ff_qsv_level_to_mfx(enum AVCodecID codec_id, int level);
  
  int ff_qsv_map_pixfmt(enum AVPixelFormat format, uint32_t *fourcc);
  enum AVPictureType ff_qsv_map_pictype(int mfx_pic_type);
  
  int ff_qsv_init_internal_session(AVCodecContext *avctx, mfxSession *session,
                                   const char *load_plugins);
  
  int ff_qsv_init_session_device(AVCodecContext *avctx, mfxSession *psession,
                                 AVBufferRef *device_ref, const char *load_plugins);
  
  int ff_qsv_init_session_frames(AVCodecContext *avctx, mfxSession *session,
                                 QSVFramesContext *qsv_frames_ctx,
                                 const char *load_plugins, int opaque);
  
  int ff_qsv_find_surface_idx(QSVFramesContext *ctx, QSVFrame *frame);
  
  #endif /* AVCODEC_QSV_INTERNAL_H */