The Voice control command API provides functions for creating/destroying command list and add/remove/retrieve commands of list.

Licensed under the Apache License, Version 2.0 (the License); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an AS IS BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Functions
int	vc_cmd_list_create (vc_cmd_list_h *vc_cmd_list)
	Creates a handle for command list.
int	vc_cmd_list_destroy (vc_cmd_list_h vc_cmd_list, bool free_command)
	Destroys the handle for command list.
int	vc_cmd_list_get_count (vc_cmd_list_h vc_cmd_list, int *count)
	Gets command count of list.
int	vc_cmd_list_add (vc_cmd_list_h vc_cmd_list, vc_cmd_h vc_command)
	Adds command to command list.
int	vc_cmd_list_remove (vc_cmd_list_h vc_cmd_list, vc_cmd_h vc_command)
	Removes command from command list.
int	vc_cmd_list_foreach_commands (vc_cmd_list_h vc_cmd_list, vc_cmd_list_cb callback, void *user_data)
	Retrieves all commands of command list using callback function.
int	vc_cmd_list_first (vc_cmd_list_h vc_cmd_list)
	Moves index to first command.
int	vc_cmd_list_last (vc_cmd_list_h vc_cmd_list)
	Moves index to last command.
int	vc_cmd_list_next (vc_cmd_list_h vc_cmd_list)
	Moves index to next command.
int	vc_cmd_list_prev (vc_cmd_list_h vc_cmd_list)
	Moves index to previous command.
int	vc_cmd_list_get_current (vc_cmd_list_h vc_cmd_list, vc_cmd_h *vc_command)
	Get current command from command list by index.
int	vc_cmd_create (vc_cmd_h *vc_command)
	Creates a handle for command.
int	vc_cmd_destroy (vc_cmd_h vc_command)
	Destroys the handle.
int	vc_cmd_set_command (vc_cmd_h vc_command, const char *command)
	Sets command or action.
int	vc_cmd_get_command (vc_cmd_h vc_command, char **command)
	Gets command.
int	vc_cmd_get_unfixed_command (vc_cmd_h vc_command, char **command)
	Gets the unfixed command.
int	vc_cmd_set_type (vc_cmd_h vc_command, int type)
	Sets command type.
int	vc_cmd_get_type (vc_cmd_h vc_command, int *type)
	Gets command type.
int	vc_cmd_set_format (vc_cmd_h vc_command, int format)
	Sets the command format.
int	vc_cmd_get_format (vc_cmd_h vc_command, int *format)
	Gets the command format.
Typedefs
typedef struct vc_cmd_s *	vc_cmd_h
	The voice command handle.
typedef struct vc_cmd_list_s *	vc_cmd_list_h
	The voice command list handle.
typedef bool(*	vc_cmd_list_cb )(vc_cmd_h vc_command, void *user_data)
	Called to retrieve The commands in list.
Defines
#define	VC_COMMAND_FORMAT_FIXED 0
	Definition for fixed command format.
#define	VC_COMMAND_FORMAT_FIXED_AND_VFIXED 1
	Definition for fixed and variable fixed command format.
#define	VC_COMMAND_FORMAT_VFIXED_AND_FIXED 2
	Definition for variable fixed and fixed command format.
#define	VC_COMMAND_FORMAT_FIXED_AND_NONFIXED 3
	Definition for fixed and non-fixed command format.
#define	VC_COMMAND_FORMAT_NONFIXED_AND_FIXED 4
	Definition for non-fixed and fixed command format.

Define Documentation

#define VC_COMMAND_FORMAT_FIXED 0

Definition for fixed command format.

Since :: 3.0

#define VC_COMMAND_FORMAT_FIXED_AND_NONFIXED 3

Definition for fixed and non-fixed command format.

Since :: 3.0

#define VC_COMMAND_FORMAT_FIXED_AND_VFIXED 1

Definition for fixed and variable fixed command format.

Since :: 3.0

#define VC_COMMAND_FORMAT_NONFIXED_AND_FIXED 4

Definition for non-fixed and fixed command format.

Since :: 3.0

#define VC_COMMAND_FORMAT_VFIXED_AND_FIXED 2

Definition for variable fixed and fixed command format.

Since :: 3.0

Typedef Documentation

typedef struct vc_cmd_s* vc_cmd_h

The voice command handle.

Since :: 3.0

typedef bool(* vc_cmd_list_cb)(vc_cmd_h vc_command, void *user_data)

Called to retrieve The commands in list.

Since :: 3.0

Parameters:

[in]	vc_command	The command handle
[in]	user_data	The user data passed from the foreach function

Returns:: true to continue with the next iteration of the loop, false to break out of the loop

Precondition:: vc_cmd_list_foreach_commands() will invoke this callback.

See also:: vc_cmd_list_foreach_commands()

typedef struct vc_cmd_list_s* vc_cmd_list_h

The voice command list handle.

Since :: 3.0

Function Documentation

int vc_cmd_create ( vc_cmd_h * vc_command )

Creates a handle for command.

Since :: 3.0

Remarks:: If the function succeeds, The command handle must be released with vc_cmd_destroy() or vc_cmd_list_destroy(). You should set command and type if command is valid. The command format is set to VC_COMMAND_FORMAT_FIXED by default and can be changed with vc_cmd_set_format().

Parameters:

[out] vc_command The command handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_OUT_OF_MEMORY	Out of memory
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_destroy()

int vc_cmd_destroy ( vc_cmd_h vc_command )

Destroys the handle.

Since :: 3.0

Parameters:

[in] vc_command The command handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_create()

int vc_cmd_get_command	(	vc_cmd_h	vc_command,
		char **	command
	)

Gets command.

Since :: 3.0

Remarks:: If the function succeeds, command must be released with free() by you if they are not NULL.

Parameters:

[in]	vc_command	The command handle
[out]	command	The command text

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_set_command()

int vc_cmd_get_format	(	vc_cmd_h	vc_command,
		int *	format
	)

Gets the command format.

Since :: 3.0

Remarks:: The default format is VC_COMMAND_FORMAT_FIXED.

Parameters:

[in]	vc_command	The command handle
[out]	format	The command format

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported feature

See also:: vc_cmd_set_format()

int vc_cmd_get_type	(	vc_cmd_h	vc_command,
		int *	type
	)

Gets command type.

Since :: 3.0

Parameters:

[in]	vc_command	The command handle
[out]	type	The command type

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_set_type()

int vc_cmd_get_unfixed_command	(	vc_cmd_h	vc_command,
		char **	command
	)

Gets the unfixed command.

Since :: 3.0

Remarks:: If the function succeeds, the command must be released with free() if it is not NULL. If the command of the given vc_command is NULL (vc_command is NOT NULL), command will be also NULL. This function should be used for commands which have non-fixed format.

Parameters:

[in]	vc_command	The command handle
[out]	command	The unfixed command text

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported feature

int vc_cmd_list_add	(	vc_cmd_list_h	vc_cmd_list,
		vc_cmd_h	vc_command
	)

Adds command to command list.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[in]	vc_command	The command handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_remove()

int vc_cmd_list_create ( vc_cmd_list_h * vc_cmd_list )

Creates a handle for command list.

Since :: 3.0

Remarks:: If the function succeeds, The list handle must be released with vc_cmd_list_destroy().

Parameters:

[out] vc_cmd_list The command list handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_OUT_OF_MEMORY	Out of memory
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_destroy()

int vc_cmd_list_destroy	(	vc_cmd_list_h	vc_cmd_list,
		bool	free_command
	)

Destroys the handle for command list.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[in]	free_command	The command free option `true` = release each commands in list, `false` = remove command from list

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_create()

int vc_cmd_list_first ( vc_cmd_list_h vc_cmd_list )

Moves index to first command.

Since :: 3.0

Parameters:

[in] vc_cmd_list The command list handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_EMPTY	List empty
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_last()

int vc_cmd_list_foreach_commands	(	vc_cmd_list_h	vc_cmd_list,
		vc_cmd_list_cb	callback,
		void *	user_data
	)

Retrieves all commands of command list using callback function.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[in]	callback	Callback function to invoke
[in]	user_data	The user data to be passed to the callback function

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

Postcondition:: This function invokes vc_cmd_list_cb() repeatedly for getting commands.

See also:: vc_cmd_list_cb()

int vc_cmd_list_get_count	(	vc_cmd_list_h	vc_cmd_list,
		int *	count
	)

Gets command count of list.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[out]	count	The count

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

int vc_cmd_list_get_current	(	vc_cmd_list_h	vc_cmd_list,
		vc_cmd_h *	vc_command
	)

Get current command from command list by index.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[out]	vc_command	The command handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_EMPTY	List empty
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_first(); vc_cmd_list_last(); vc_cmd_list_prev(); vc_cmd_list_next()

int vc_cmd_list_last ( vc_cmd_list_h vc_cmd_list )

Moves index to last command.

Since :: 3.0

Parameters:

[in] vc_cmd_list The command list handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_EMPTY	List empty
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_first()

int vc_cmd_list_next ( vc_cmd_list_h vc_cmd_list )

Moves index to next command.

Since :: 3.0

Parameters:

[in] vc_cmd_list The command list handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_EMPTY	List empty
VC_ERROR_ITERATION_END	List reached end
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_prev()

int vc_cmd_list_prev ( vc_cmd_list_h vc_cmd_list )

Moves index to previous command.

Since :: 3.0

Parameters:

[in] vc_cmd_list The command list handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_EMPTY	List empty
VC_ERROR_ITERATION_END	List reached end
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_next()

int vc_cmd_list_remove	(	vc_cmd_list_h	vc_cmd_list,
		vc_cmd_h	vc_command
	)

Removes command from command list.

Since :: 3.0

Parameters:

[in]	vc_cmd_list	The command list handle
[in]	vc_command	The command handle

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_list_add()

int vc_cmd_set_command	(	vc_cmd_h	vc_command,
		const char *	command
	)

Sets command or action.

Since :: 3.0

Parameters:

[in]	vc_command	The command handle
[in]	command	The command or action text

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_get_command()

int vc_cmd_set_format	(	vc_cmd_h	vc_command,
		int	format
	)

Sets the command format.

Since :: 3.0

Remarks:: The default format is VC_COMMAND_FORMAT_FIXED.

Parameters:

[in]	vc_command	The command handle
[in]	format	The command format

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported feature

See also:: vc_cmd_get_format()

int vc_cmd_set_type	(	vc_cmd_h	vc_command,
		int	type
	)

Sets command type.

Since :: 3.0

Remarks:: If you do not set the command type, the default value is -1. You should set type if command is valid

Parameters:

[in]	vc_command	The command handle
[in]	type	The command type

Returns:: 0 on success, otherwise a negative error value

Return values:

VC_ERROR_NONE	Successful
VC_ERROR_INVALID_PARAMETER	Invalid parameter
VC_ERROR_PERMISSION_DENIED	Permission denied
VC_ERROR_NOT_SUPPORTED	Not supported

See also:: vc_cmd_get_type()

Functions

Typedefs

Defines

Define Documentation

Typedef Documentation

Function Documentation