安装pyav错误信息如下: src/av/sidedata/sidedata.c: In function '__pyx_pf_2av_8sidedata_8sidedata_8SideData_2__repr__' : src/av/sidedata/sidedata.c:2717:46: warning: cast from pointer to integer of different size [ -Wpointer-to-int-cast ] __pyx_t_5 = __Pyx_PyInt_From_unsigned_int (( ( unsigned int ) __pyx_v_self - > ptr - > data )) ; if ( unlikely ( ! __pyx_t_5 )) __PYX_ERR ( 0, 61, __pyx_L1_error ) ^ src/av/sidedata/sidedata.c: In function 'initsidedata' : src/av/sidedata/sidedata.c:5355:58: error: 'AV_FRAME_DATA_SPHERICAL' undeclared ( first use in this function ) __pyx_t_1 = __Pyx_PyInt_From_enum_