如何禁用模块Image :: EXIF中的警告 [英] How to disable the warning in module Image::EXIF

问题描述

美好的一天！ 当您运行此脚本时:

Good day! When you run this script:

#!/usr/bin/perl
use strict;
use warnings;

use Image::EXIF;
my $exif = new Image::EXIF($ARGV[0] || 'image3.jpg');

显示警告(并非所有图片都显示警告.):

displayed a warning (a warning is not at all the pictures.):

(null):未知的TIFF字段类型；丢弃(未知)

(null): unknown TIFF field type; discarding (Unknown)

是否可以禁止显示此警告?

Is it possible to suppress this warning?

推荐答案

查看该模块的源代码，它具有XS本机部分，被调用的c函数如下所示(在文件"exifutil.c中") "):

Looking at the source code of that module, it has a XS native part, and the c function that is called looks like this (at file "exifutil.c"):

void exifwarn2(const char *msg1, const char *msg2)
{
    fprintf(stderr, "%s: %s (%s)\n", progname, msg1, msg2);
}

如您所见，它会打印到STDERR，因此您可以在调用Image :: EXIF构造函数之前正确处理STDERR. 这个问题可能会为您提供帮助.

As you can see, it prints to STDERR, so you can handle STDERR properly before the call to the Image::EXIF constructor. This SO question may helps you.

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