types/unit.proto

Table of Contents

• types/unit.proto

  • AudioLevel

  • AudioLevelChange

  • Temperature

  • MuteSupport

  • TemperatureUnit

• Scalar Value Types

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types/unit.proto

AudioLevel

Represents an audio signal level for either input or output devices. Typically if fine grained control of either gain or muted is required then a FieldMask should describe this.

Field	Type	Label	Description
gain	float		The current gain, typically as a percentage unless documented in the AudioLevel usage.
gain_tween	Tween		How the gain changes or should change over time. On write only duration should be set.
target_gain	float		Read-only, the target value for the gain during a transition
muted	bool		If the audio level muted.

AudioLevelChange

A change to the audio level

Field	Type	Label	Description
name	string		The name of the device that is the source of the change
change_time	google.protobuf.Timestamp		When the change was applied
level	AudioLevel		The new state for the change

Temperature

A temperature value

Field	Type	Label	Description
value_celsius	double		The value in celsius, always! Use device attributes if the device 'thinks' in a different unit but always communicate in celsius.

MuteSupport

What is the level of mute support that the speaker provides

Name	Number	Description
MUTE_SUPPORT_UNSPECIFIED	0
MUTE_NATIVE	1	The speaker natively supports mute
MUTE_EMULATED	2	Muting is emulated, typically by setting the gain to 0

TemperatureUnit

Possible temperature units for physical bodies.

Name	Number	Description
TEMPERATURE_UNIT_UNSPECIFIED	0
CELSIUS	1
FAHRENHEIT	2
KELVIN	3

Scalar Value Types

.proto Type	Notes	C++	Java	Python	Go	C#	PHP	Ruby
double		double	double	float	float64	double	float	Float
float		float	float	float	float32	float	float	Float
int32	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint32 instead.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
int64	Uses variable-length encoding. Inefficient for encoding negative numbers – if your field is likely to have negative values, use sint64 instead.	int64	long	int/long	int64	long	integer/string	Bignum
uint32	Uses variable-length encoding.	uint32	int	int/long	uint32	uint	integer	Bignum or Fixnum (as required)
uint64	Uses variable-length encoding.	uint64	long	int/long	uint64	ulong	integer/string	Bignum or Fixnum (as required)
sint32	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int32s.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sint64	Uses variable-length encoding. Signed int value. These more efficiently encode negative numbers than regular int64s.	int64	long	int/long	int64	long	integer/string	Bignum
fixed32	Always four bytes. More efficient than uint32 if values are often greater than 2^28.	uint32	int	int	uint32	uint	integer	Bignum or Fixnum (as required)
fixed64	Always eight bytes. More efficient than uint64 if values are often greater than 2^56.	uint64	long	int/long	uint64	ulong	integer/string	Bignum
sfixed32	Always four bytes.	int32	int	int	int32	int	integer	Bignum or Fixnum (as required)
sfixed64	Always eight bytes.	int64	long	int/long	int64	long	integer/string	Bignum
bool		bool	boolean	boolean	bool	bool	boolean	TrueClass/FalseClass
string	A string must always contain UTF-8 encoded or 7-bit ASCII text.	string	String	str/unicode	string	string	string	String (UTF-8)
bytes	May contain any arbitrary sequence of bytes.	string	ByteString	str	[]byte	ByteString	string	String (ASCII-8BIT)