Line-Following-Robot/Input/Externals/raspicam-master/dependencies/mmal/mmal_util_params.h

/*
Copyright (c) 2012, Broadcom Europe Ltd
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    * Neither the name of the copyright holder nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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*/

#ifndef MMAL_UTIL_PARAMS_H
#define MMAL_UTIL_PARAMS_H

#include "mmal.h"

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @file
 * Utility functions to set some common parameters.
 */

/** Helper function to set the value of a boolean parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_boolean(MMAL_PORT_T *port, uint32_t id, MMAL_BOOL_T value);

/** Helper function to get the value of a boolean parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_boolean(MMAL_PORT_T *port, uint32_t id, MMAL_BOOL_T *value);

/** Helper function to set the value of a 64 bits unsigned integer parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_uint64(MMAL_PORT_T *port, uint32_t id, uint64_t value);

/** Helper function to get the value of a 64 bits unsigned integer parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_uint64(MMAL_PORT_T *port, uint32_t id, uint64_t *value);

/** Helper function to set the value of a 64 bits signed integer parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_int64(MMAL_PORT_T *port, uint32_t id, int64_t value);

/** Helper function to get the value of a 64 bits signed integer parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_int64(MMAL_PORT_T *port, uint32_t id, int64_t *value);

/** Helper function to set the value of a 32 bits unsigned integer parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_uint32(MMAL_PORT_T *port, uint32_t id, uint32_t value);

/** Helper function to get the value of a 32 bits unsigned integer parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_uint32(MMAL_PORT_T *port, uint32_t id, uint32_t *value);

/** Helper function to set the value of a 32 bits signed integer parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_int32(MMAL_PORT_T *port, uint32_t id, int32_t value);

/** Helper function to get the value of a 32 bits signed integer parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_int32(MMAL_PORT_T *port, uint32_t id, int32_t *value);

/** Helper function to set the value of a rational parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  value to set the parameter to
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_rational(MMAL_PORT_T *port, uint32_t id, MMAL_RATIONAL_T value);

/** Helper function to get the value of a rational parameter.
 * @param port   port on which to get the parameter
 * @param id     parameter id
 * @param value  pointer to where the value will be returned
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_get_rational(MMAL_PORT_T *port, uint32_t id, MMAL_RATIONAL_T *value);

/** Helper function to set the value of a string parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param value  null-terminated string value
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_string(MMAL_PORT_T *port, uint32_t id, const char *value);

/** Helper function to set the value of an array of bytes parameter.
 * @param port   port on which to set the parameter
 * @param id     parameter id
 * @param data   pointer to the array of bytes
 * @param size   size of the array of bytes
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_port_parameter_set_bytes(MMAL_PORT_T *port, uint32_t id,
   const uint8_t *data, unsigned int size);

/** Helper function to set a MMAL_PARAMETER_URI_T parameter on a port.
 * @param port   port on which to set the parameter
 * @param uri    URI string
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_util_port_set_uri(MMAL_PORT_T *port, const char *uri);

/** Set the display region.
 * @param port   port to configure
 * @param region region
 *
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_util_set_display_region(MMAL_PORT_T *port,
                                           MMAL_DISPLAYREGION_T *region);

/** Tell the camera to use the STC for timestamps rather than the clock.
 *
 * @param port   port to configure
 * @param mode   STC mode to use
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_util_camera_use_stc_timestamp(MMAL_PORT_T *port, MMAL_CAMERA_STC_MODE_T mode);

/** Get the MMAL core statistics for a given port.
 *
 * @param port  port to query
 * @param dir   port direction
 * @param reset reset the stats as well
 * @param stats filled in with results
 * @return MMAL_SUCCESS or error
 */
MMAL_STATUS_T mmal_util_get_core_port_stats(MMAL_PORT_T *port, MMAL_CORE_STATS_DIR dir, MMAL_BOOL_T reset,
                                            MMAL_CORE_STATISTICS_T *stats);

#ifdef __cplusplus
}
#endif

#endif