d8757a6bcf
Fix some issues and update license to apache. - Fails to open the video driver. - Change format from YUV422 to RGB565, and add captured image output to LCD. - An application cannot exit by infinite loop. - In video-only mode without capturing still images, do not allocate capture memory for still images to reduce the memory usage.
123 lines
3.3 KiB
C
123 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 const char *save_dir;
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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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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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save_dir = "/mnt/spif";
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}
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else
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{
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save_dir = "/mnt/sd0";
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}
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return 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(uint8_t *data, size_t len, const char *fsuffix)
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{
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static char s_fname[IMAGE_FILENAME_LEN];
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static int s_framecount = 0;
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FILE *fp;
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s_framecount++;
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if (s_framecount >= 1000)
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{
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s_framecount = 1;
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}
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memset(s_fname, 0, sizeof(s_fname));
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snprintf(s_fname,
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IMAGE_FILENAME_LEN,
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"%s/VIDEO%03d.%s",
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save_dir, s_framecount, fsuffix);
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printf("FILENAME:%s\n", s_fname);
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fp = fopen(s_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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