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[讨论] 大神们,谁了解高通平台的AF效果调试

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发表于 2014-10-15 10:02:43 | 显示全部楼层 |阅读模式
大神们,谁了解高通平台的AF效果调试?
像下面内容一样
{
    /* af_header_info_t */
    {
      /* header_version */
      0x301,
      /* module_name */
      "XXXX",
      /* actuator_name */
      "XXXX",
      /* af_camera_name */
      0,
    }, /* af_header_info_t */

    /* af_tuning_algo_t */
    {
      /* Variable name: af_process_type.
       * Defines which AF algorithm to use -
       *   Exhaustive/Slope-predictive/Continuous.
       * 3A version:
       * Default value: AF_EXHAUSTIVE_SEARCH.
       * Data range: based on af_algo_type
       */
        AF_EXHAUSTIVE_SEARCH,

      /* Variable name: position_near_end.
       * Used to control how far lens can move away from mechanical stop.  It
       * is defined in term of indices, where position_far_end >
       * position_near_end.
       * 3A version:
       * Default value: 0.
       * Data range: 0 to (position_far_end - 1).
       * Constraints: Less than position_far_end. Total steps for AF lens to
       *              travel = position_far_end - position_near_end.  For
       *              sanity check, it should be more than 20 steps.
       * Effect: Non-zero means we are limiting AF travel range even more than
       *         the values obtained from AF tuning.  For example, if AF lens
       *         on the final production modules move 8 steps beyond the
       *         necessary MACRO focused distance, we can reduce travel range
       *         by setting position_near_end to 8 (or less to account for
       *         module-to-module variation).
       */
      0,

      /* Variable name: position_default_in_macro.
       * Gives default rest position of lens when focus mode is Macro.
       * 3A version:
       * Default value: 0.
       * Data range: 0 to position_far_end.
       */
       257,//160,// resolve the white wall bugs //170,//,113,//210,

      /* Variable name: position_boundary.
       * Used to control how far lens can move away from mechanical stop in
       * NORMAL search mode.
       * 3A version:
       * Default value: 0.
       * Data range: 0 to (position_far_end - 1).
       * Constraints: Less than position_far_end.
       * Effect: The closer it is to position_far_end, the less steps AF lens is allowed
       * to travel in NORMAL search mode.
       */
      399,//377,
      /* Variable name: position_default_in_normal.
       * Gives default rest position of lens when focus mode is Normal/Auto.
       * mode.
       * 3A version:
       * Default value: position_far_end.
       * Data range: 0 to position_far_end.
       */
      431,//300,//365,//430,

      /* Variable name: position_far_end.
       * Used to control how far lens can move away from mechanical stop.  It is
       * defined in term of indices, where position_far_end > position_near_end.
       * 3A version:
       * Default value: actuator infinity position
       * Data range: 1 to infinty
       * Constraints:
       * Effect: Non-zero means we are limiting AF travel range even more than the
       *         values obtained from AF tuning.
       */
      460,

       /* Variable name: position_normal_hyperfocal.
        * Gives default position of lens when focus mode is Normal/Auto and
        * focus fails.
        * 3A version:
        * Default value: position_far_end.
        * Data range: 0 to position_far_end.
        */
      453,//
      /* Variable name: position_macro_rgn.
       * Starting lens position of macro region.
       * 3A version:
       * Default value: tunable..
       * Data range: 0 to position_far_end.
       */
      317,//268,//241,//315,

      /* Variable name: undershoot_protect.
       * Boolean flag to enable/disable the feature
       * 3A version:
       * Default value: 0 (disable)
       * Data range: 0 (enable) or 1 (disable)
       * Constraints: the degree of protection from undershoot will be depends
       *              on undershoot_adjust variable
       * Effect: If this feature is enabled, lens will move more in one
       *         direction over the other direction. This is needed when
       *         it is determined that AF actuator has severe hysteresis on
       *         its movement during characterization process. The feature
       *         compensate hysteresis by moving the lens more
       *         in either forward or backward direction.
     */
      0,
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}, /*af_tuning_vfe_t */
  }
发表于 2014-10-15 17:27:08 | 显示全部楼层
这个感觉需要激光测距仪
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发表于 2014-10-29 16:59:46 | 显示全部楼层
這個感覺是在調校每個距離Lens 的位置..
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发表于 2015-1-30 17:11:16 | 显示全部楼层
這個感覺是在調校每個距離Lens 的位置..
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