如何在Flutter中运行Ricoh Theta实时预览？

Question

我想在我的应用程序中显示理光SC相机的实时预览。但是，我无法在设备上获取视频流。我能够做一些基本的事情，例如将Api设置为v2并拍照。我是个新手，因此不是从事流和期货工作的专家。

/**
 * Drag Resize Bottom Right Corner
**/ 
drag_br: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x,
    y: self._startPos.y,
    w: self._startPos.w + ( e.clientX - self._startPos.clientX ),
    h: self._startPos.h + ( e.clientY - self._startPos.clientY )
  });

  self._repaint();
},

/**
 * Drag Resize Top Right Corner
**/ 
drag_tr: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x ,
    y: self._startPos.y + ( e.clientY - self._startPos.clientY ),
    w: self._startPos.w + ( e.clientX - self._startPos.clientX ),
    h: self._startPos.h - ( e.clientY - self._startPos.clientY )
  });

  self._repaint();
},   

/**
 * Drag Resize Top Left Corner
**/ 
drag_tl: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x + ( e.clientX - self._startPos.clientX ),
    y: self._startPos.y + ( e.clientY - self._startPos.clientY ),
    w: self._startPos.w - ( e.clientX - self._startPos.clientX ),
    h: self._startPos.h - ( e.clientY - self._startPos.clientY )
  });

  self._repaint();
},  

/**
 * Drag Resize Bottom Left Corner
**/ 
drag_bl: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x + ( e.clientX - self._startPos.clientX ),
    y: self._startPos.y,
    w: self._startPos.w - ( e.clientX - self._startPos.clientX ),
    h: self._startPos.h + ( e.clientY - self._startPos.clientY )
  });

  self._repaint();
}, 

/**
 * Drag Resize Top Edge
**/ 
drag_t: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x,
    y: self._startPos.y + ( e.clientY - self._startPos.clientY ),
    w: self._startPos.w,
    h: self._startPos.h - ( 2 * ( e.clientY - self._startPos.clientY ) )
  });

  self._repaint();
}, 

/**
 * Drag Resize Left Edge
**/ 
drag_l: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x + ( e.clientX - self._startPos.clientX ),
    y: self._startPos.y,
    w: self._startPos.w - ( 2 * ( e.clientX - self._startPos.clientX ) ),
    h: self._startPos.h
  });

  self._repaint();
}, 

/**
 * Drag Resize Bottom Edge
**/ 
drag_b: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x,
    y: self._startPos.y - ( e.clientY - self._startPos.clientY ),
    w: self._startPos.w,
    h: self._startPos.h + ( 2 * ( e.clientY - self._startPos.clientY ) )
  });

  self._repaint();
}, 

/**
 * Drag Resize Right Edge
**/ 
drag_r: function( e ) {
  var self = this;

  self.layoutRect( {
    x: self._startPos.x - ( e.clientX - self._startPos.clientX ),
    y: self._startPos.y,
    w: self._startPos.w + ( 2 * ( e.clientX - self._startPos.clientX ) ),
    h: self._startPos.h
  });

  self._repaint();
}, 

大多数时候，什么都没有打印。有时我收到http状态码403。但是，我再也无法重现它。