科技纪年/Tech Craft Chronicles

自媒体、剪辑党福音！FFmpeg 超神助力，难题‘秒’解决，还不赶紧上车! - Good news for self-media and video editors! FFmpeg supercharges your work, solving problems in a flash. Jump on board! 嘿，做自媒体或是搞视频剪辑的小伙伴们，咱是不是都有过这些崩溃瞬间：辛辛苦苦压缩个视频，结果画面糊得像打了马赛克，美感全无；听到一段超赞的背景音乐，心痒痒想拿来当自己作品的 BGM 或者设成个性铃声，却死活找不到提取的门道；还有想快速截个视频片段，用软件操作一番后，得到的却是个画质惨不忍睹的 “残次品”。别愁啦，今天就给大伙介绍个超给力的神器 ——FFmpeg，保准让这些难题统统 “退下”！ FFmpeg ，这个听起来就很有技术感的名字，其实比你想象的要亲民得多。它就像是一位隐身的视频专家，随时准备帮你解决那些看似复杂的问题。而且，安装FFmpeg简直不能再简单了。如果你是Mac用户，而且已经安装了 Homebrew ，那么只需在终端里输入一行命令，FFmpeg就能轻松成为你的囊中之物。或者 Github 手动安装。如果你更习惯于Windows系统，那么去FFmpeg的官方网站下载安装包，然后添加到环境变量，就能愉快地使用了。FFmpeg支持多平台，无论你是Mac、Windows还是Linux用户，都能轻松驾驭。它的帮助命令是” ffmpeg -h ”。 好了，让我们来揭开FFmpeg的神秘面纱，看看它是如何用三个简单的命令，帮你解决视频压缩、音频提取和视频截取的问题。 首先，我们来看压缩视频的命令。你是否遇到过视频文件太大，想要压缩但又担心画质受损的问题？FFmpeg的这个命令能帮你在压缩的同时保持画质： ``` ffmpeg -i input.mp4 -c:v libx264 -r 25 -crf 21 -c:a aac output.mp4 ``` 这里的`-c:v libx264`指定了视频编码器为H264，`-r 25`设置了帧率为25，而`-crf 21`则是设置了码率，数值越小，质量越高。`-c:a aac`则是指定音频编码为AAC。是的，所谓压缩就是重新设置音频格式，视频格式，帧率和码率。 接下来，如果你听到了一段喜欢的背景音乐，想要提取出...

探寻 Hugging Face 上那些能惊艳你、帮大忙的隐藏宝藏! - Discover the hidden treasures on Hugging Face that'll blow your mind and save your day! 各位小伙伴，今天我要分享三个超给力的免费AI神器，保证让你直呼“真香”！不用花一分钱，就能体验到AI的强大魔力，简直是白嫖党的福音！ 首先登场的是我们的“ 去水印侠 ”。别小看这个工具，它可是个隐藏的高手。只需上传你的图片，用画笔轻轻一抹，那些烦人的水印就像被魔法消除了一样，瞬间消失无踪。是不是觉得神奇？这可是免费的秘密武器哦！ 接下来是“ 酷炫头像制造机 ”。想拥有独一无二的头像？只需上传照片，输入一些“咒语”（提示词），Duang的一下，一张充满艺术气息的头像就诞生了！不管是想变身二次元大神，还是抽象派大师，都能轻松实现。 最后一位重量级选手是“ 表情包动画大师 ”。想让静态照片动起来？只需上传照片和一段动画，轻轻一点“Animate”，就能生成各种搞笑的表情包！不过友情提示，这款工具需要强大的“心脏”（GPU）才能运行，不然可能会“罢工”哦。如果你看过我之前的教程，就知道在ComfyUI里也能实现类似效果，虽然速度慢点，但不用额外显卡，也算是个折中方案。 这三款工具不仅免费、实用，而且操作简单到爆炸！即使是AI小白也能轻松驾驭，快来一起体验AI的乐趣吧！ Hey everyone! Today, I'm sharing three incredibly powerful and FREE AI tools that will make you shout "Awesome!" You don't need to spend a dime to experience the magic of AI. It's a true blessing for freebie lovers! First up is our " Watermark Hero ". Don't underestimate this tool; it's a hidden master. Just upload your image, gently brush ov...

  Don't Mess Up Your Masterpiece - Mod like a Pro! - 别毁了你的杰作 - 像专家一样修改吧！ Now, let's dive deeper into the magical world of websim.ai. Ever dreamt of modding a site like a samurai of cyberspace, or crafting your own app without the hassle? Here's your ticket to being a DIY Digital Wizard. Login into websim.ai , channel your inner Picasso in the webiverse, and type in your desire: "Please mimic LINE to make a simple chat app." Within moments, you'll have your own chat app! Sure, it's more like an echo chamber where you can only see your own messages, but the interface is spot-on, almost as if LINE and websim had a digital baby. But wait, there's more! Let's say you found a pic on Pinterest for an app and thought, "This would look cool on my site." Upload that image, and type "Please add a message list on the left side." In no time, websim will give you the revamped chat app. Ready to unleash your masterpiece onto the world? Here’s ...

Understanding the hidden rules that affect your retirement income.  Deeming Rules: The Aussie Way to Calculate Your Pension In Australia, the government uses 'deeming rules' to estimate your income from financial assets. This affects your pension eligibility and amount. Let's break it down! What are Deeming Rules? Deeming rules assume your financial assets earn a certain income, regardless of their actual performance. It's like the government is saying, "Hey, we know you've got some smart investments, but we'll just assume they're earning a certain rate." How Do Deeming Rules Work? Eligible Assets : Bank accounts, term deposits, shares, and more. Deeming Rates : Two rates apply, depending on your asset value. As of Dec 2024: Singles: 0.25% for the first $60,400, then 2.25% for the rest. Couples: 0.25% for the first $100,200, then 2.25% for the rest. Deemed Income : The government calculates your deemed income based on these rates. What's the Po...

Overseas assets in Aussie pension game? Unravel the mystery, don't be lame! Diving into the world of Aussie pensions with a global twist, let's unravel the mystery of how overseas assets can sway your retirement purse. Get ready to convert those foreign properties into Aussie dollars and see how they stack up against the asset test limits that took effect on September 20, 2024. Here's the lowdown on the asset test caps for partial pension eligibility: Single home owners: $695,500 AUD Single non-homeowners: $947,500 AUD Couples (homeowners): $1,045,500 AUD Couples (non-homeowners): $1,297,500 AUD Let's take a fun ride through some hypotheticals with your folks, who are applying as a duo and own a home down under. Scenario 1 : Your parents own a property overseas worth 1 million RMB. Let's turn those yuan into Aussie dollars at assume exchange rate of 1 AUD = 4.65 RMB: 1,000,000 ÷ 4.65 = 215,053.76 AUD Add to that their other assets in Australia, valued at 400,000 AUD...

Navigating Aussie pension maze? Let your parents rest! - 搞定澳养老金谜团？别让父母烦恼！ Current Pension Amount (from September 2024 to March 2025, for the latest data, please check the official website) For a couple jointly receiving the pension: $1,538.80 - $1,725.20 per fortnight (a total of $44,855 per year) Approximately $3,077.60 - $3,750.40 per month. Department to Apply for Pension Your parents need to apply for the pension from Services Australia (formerly known as Centrelink). They can apply online or visit the service center in person. Pension Asset Test Definition of Asset Test The asset test is used to assess whether an applicant is eligible to receive the pension. Specifically: Asset Free Area: If the family assets are below a certain limit, the full pension can be obtained. A couple can receive the full pension if their fortnightly income is below $336. For every $1 over this amount, the pension is reduced by $0.5. When the income reaches $3,568 per fortnight (about $7,717 per month), ...

Websim.ai: Your AI Copilot for Web Development - Websim.ai：你的AI网页开发忠诚僚机 Dive into the world of web development with Websim.ai , where creating a webpage is as easy as pie and free of charge! Are you tired of wrestling with code and testing websites until you're blue in the face? Look no further than Websim.ai, your one-stop-shop for swift and hassle-free webpage crafting. This nifty simulation app can mimic a vast majority of application programs at lightning speed, provided your demands aren't overly gigantic. To get started, you need to head over to its website, websim.ai. You can log in using either your Discord or Gmail account. After your first login, don't forget to set a username, as it'll be part of the link for any app you might want to publish in the future. Once logged in, you'll land on the homepage. A quick peek at the top search bar reveals that the default AI in use is Sonnet 3.5, which is pretty darn powerful for now. But if you're feeling advent...