/*
  * 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_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 */