mmal_events.h

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/*
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_EVENTS_H
#define MMAL_EVENTS_H

#ifdef __cplusplus
extern "C" {
#endif

#include "mmal_common.h"
#include "mmal_parameters.h"
#include "mmal_port.h"

/* @{ */

/* @{ */

#define MMAL_EVENT_ERROR                     MMAL_FOURCC('E','R','R','O')

#define MMAL_EVENT_EOS                       MMAL_FOURCC('E','E','O','S')

#define MMAL_EVENT_FORMAT_CHANGED            MMAL_FOURCC('E','F','C','H')

#define MMAL_EVENT_PARAMETER_CHANGED         MMAL_FOURCC('E','P','C','H')

/* @} */


typedef struct MMAL_EVENT_END_OF_STREAM_T
{
   MMAL_PORT_TYPE_T port_type;   
   uint32_t port_index;          
} MMAL_EVENT_END_OF_STREAM_T;

typedef struct MMAL_EVENT_FORMAT_CHANGED_T
{
   uint32_t buffer_size_min;         
   uint32_t buffer_num_min;          
   uint32_t buffer_size_recommended; 
   uint32_t buffer_num_recommended;  
   MMAL_ES_FORMAT_T *format;         
} MMAL_EVENT_FORMAT_CHANGED_T;

typedef struct MMAL_EVENT_PARAMETER_CHANGED_T
{
   MMAL_PARAMETER_HEADER_T hdr;
} MMAL_EVENT_PARAMETER_CHANGED_T;

MMAL_EVENT_FORMAT_CHANGED_T *mmal_event_format_changed_get(MMAL_BUFFER_HEADER_T *buffer);

/* @} */

#ifdef __cplusplus
}
#endif

#endif /* MMAL_EVENTS_H */