119 lines
3.3 KiB
C
119 lines
3.3 KiB
C
/****************************************************************************
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* apps/examples/camera/camera_fileutil.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "camera_fileutil.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define IMAGE_FILENAME_LEN (32)
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static FAR const char *g_save_dir;
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static int g_framecount;
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: futil_initialize()
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*
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* Description:
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* Choose strage to write a file.
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****************************************************************************/
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FAR const char *futil_initialize(void)
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{
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int ret;
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struct stat stat_buf;
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/* In SD card is available, use SD card.
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* Otherwise, use SPI flash.
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*/
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ret = stat("/mnt/sd0", &stat_buf);
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if (ret < 0)
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{
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g_save_dir = "/mnt/spif";
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}
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else
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{
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g_save_dir = "/mnt/sd0";
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}
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return g_save_dir;
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}
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/****************************************************************************
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* Name: futil_writeimage()
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*
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* Description:
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* Write a image file to selected storage.
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****************************************************************************/
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int futil_writeimage(FAR uint8_t *data, size_t len, FAR const char *fsuffix)
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{
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char fname[IMAGE_FILENAME_LEN];
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FAR FILE *fp;
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g_framecount++;
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if (g_framecount >= 1000)
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{
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g_framecount = 1;
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}
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snprintf(fname,
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IMAGE_FILENAME_LEN,
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"%s/VIDEO%03d.%s",
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g_save_dir, g_framecount, fsuffix);
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printf("FILENAME:%s\n", fname);
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fp = fopen(fname, "wb");
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if (NULL == fp)
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{
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printf("fopen error : %d\n", errno);
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return -1;
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}
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if (len != fwrite(data, 1, len, fp))
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{
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printf("fwrite error : %d\n", errno);
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}
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fclose(fp);
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return 0;
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}
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