free_preview_buffer_func_t

Updated: October 26, 2022

Free a preview buffer

Synopsis:

#include <camera/external_camera_api.h>
typedef int(* free_preview_buffer_func_t)(void *handle,
            void *vaddr,
            uint32_t size);

Arguments:

handle
The handle that's returned from calling the function open_external_camera_func_t.
vaddr
The preview buffer address.
size
The preview buffer size in bytes.

Library:

libcamapi

Description:

This function is called to free a buffer that was previously allocated using allocate_preview_buffer_func_t.

Note:

This function is optional. If it is not present, the camera will not support allocating preview buffers from the external camera library.

Returns:

CAMERA_EOK when the function successfully completes, otherwise another camera_error_t value that provides the reason that the call failed.