/home/jvcleave/Desktop/RASPBERRY_PI/userland/interface/mmal/util/mmal_util.h

/*
Copyright (c) 2012, Broadcom Europe Ltd
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * 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.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef MMAL_UTIL_H
#define MMAL_UTIL_H

#include "interface/mmal/mmal.h"

#define MMAL_OFFSET(TYPE, FIELD) ((size_t)((uint8_t *)&((TYPE*)0)->FIELD - (uint8_t *)0))

#ifdef __cplusplus
extern "C" {
#endif

const char *mmal_status_to_string(MMAL_STATUS_T status);

uint32_t mmal_encoding_stride_to_width(uint32_t encoding, uint32_t stride);

uint32_t mmal_encoding_width_to_stride(uint32_t encoding, uint32_t width);

const char* mmal_port_type_to_string(MMAL_PORT_TYPE_T type);

MMAL_PARAMETER_HEADER_T *mmal_port_parameter_alloc_get(MMAL_PORT_T *port,
   uint32_t id, uint32_t size, MMAL_STATUS_T *status);

void mmal_port_parameter_free(MMAL_PARAMETER_HEADER_T *param);

void mmal_buffer_header_copy_header(MMAL_BUFFER_HEADER_T *dest, const MMAL_BUFFER_HEADER_T *src);

MMAL_POOL_T *mmal_port_pool_create(MMAL_PORT_T *port,
   unsigned int headers, uint32_t payload_size);

void mmal_port_pool_destroy(MMAL_PORT_T *port, MMAL_POOL_T *pool);

void mmal_log_dump_port(MMAL_PORT_T *port);

void mmal_log_dump_format(MMAL_ES_FORMAT_T *format);

MMAL_PORT_T *mmal_util_get_port(MMAL_COMPONENT_T *comp, MMAL_PORT_TYPE_T type, unsigned index);

char *mmal_4cc_to_string(char *buf, size_t len, uint32_t fourcc);


#ifdef __cplusplus
}
#endif

#endif