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[Quick Guide] How to Use FFMPEG deinterlace

Ever watched an old video and noticed those annoying horizontal lines? They can really ruin the fun, can't they? Well, there's a hero in the digital world that can save our day - and it's called FFMPEG deinterlacing.

This quick guide is all about making those lines disappear and bringing the joy back to your video experiences. Let's dive into how it works and make your videos smooth and clear!

Part 1. What Is FFMPEG Deinterlace?

Imagine you've got an old family video, one that's precious but looks a bit like you're watching it through a picket fence because of all those lines. That's because it's interlaced. Back in the day, videos were made this way to fit the TV tech of the times. But now, we want our videos smooth, without those lines, especially when we're watching on modern screens. That's where FFMPEG deinterlacing comes into play.

FFMPEG is a powerhouse tool, free software that can convert, stream, or process video and audio files. Deinterlacing is one of its many tricks. It takes those old, interlaced videos and transforms them, removing the lines and making the video playback smooth.

ffmpeg deinterlace

Part 2. Filters in FFmpeg Deinterlace

FFmpeg isn't just a one-trick pony. It offers several filters for deinterlacing, each with its own way of smoothing out those lines. Let's talk about three popular ones: yadif, bwdif, and idet.

1. Yadif (Yet Another DeInterlacing Filter):

This filter is like a friendly neighbor who knows a bit about everything. It works by comparing frames and deciding the best way to fill in the lines. It's great because it can handle most videos you throw at it, making it a go-to choice for general use.

2. Bwdif (Bob Weaver Deinterlacing Filter):

Think of bwdif as the craftsman, taking a bit more time to get things just right. It uses a method that checks both the past and future frames to decide how to fill those lines. This results in higher quality, especially in videos with lots of motion.

3. Idet (Interlace Detection):

Idet is like the detective, analyzing the video to figure out exactly where and how it's interlaced before it even starts the deinterlacing process. This filter helps you make smart decisions and is especially useful for videos where it's not clear how they were interlaced in the first place.

Part 3. How to Use FFMPEG Deinterlace?

Getting rid of those pesky lines in your videos with FFMPEG deinterlacing is like giving them a new lease on life. It's not just about choosing a filter; it's about fine-tuning it to perfection. With the right filter and adjustments, your old videos can look as smooth and clear as the day they were shot. Here's how you can do it:

  • Step 1. Choose Your Filter: Start by picking a deinterlacing filter. Remember, yadif is great for general use, bwdif is perfect for high-motion videos, and idet is your go-to for tricky interlacing patterns.

  • Step 2. Install FFMPEG: If you haven't already, download and install FFMPEG from its official website. Make sure it's accessible from your system's command line or terminal.

  • Step 3. Open Your Command Line or Terminal: The magic happens in the command line or terminal. This is where you'll type your commands to work with FFMPEG.

  • Step 4. Craft Your Command: To deinterlace a video, you'll use a command that looks something like this:

    idet of ffmpeg deinterlace
  • Step 5. Execute the Command: Once you're happy with your command, hit Enter. FFMPEG will start the deinterlacing process. Depending on the size of your video and the power of your computer, this might take a little time.

  • Step 6. Check Your Video: After the process is complete, watch your deinterlaced video to ensure it looks as expected. If something's off, you might want to try different filters or parameter settings.


Be careful when adjusting the parameters of your deinterlacing filter. If not done correctly, you might end up with visual artifacts that can distract from the viewing experience.

Part 4. Fix Your FFMPEG Deinterlace Video Due to Wrong Parameters

Setting the wrong parameters in FFMPEG deinterlace can lead to less-than-ideal video quality, or in the worst cases, a damaged file. And this is why HitPaw Video Enhancer is reliable.

HitPaw Video Enhancer is your go-to professional video repair toolkit, designed to address a myriad of video quality issues with ease. What sets it apart is its reliance on AI technology, which not only saves precious time but also guarantees a polished output.

Key Features of HitPaw Video Enhancer

  • AI-powered repair with advanced AI algorithms
  • User-friendly interface suitable for both novices and professionals
  • Versatile video support in a one-stop solution
  • Batch processing without long time waiting
  • Real-time preview for adjustments before finalizing the output

Steps to Fix Your FFMPEG Deinterlace Video

  • Step 1. Download and Install: First, grab the latest version of HitPaw Video Enhancer from the official website and install it on your computer.

  • Step 2. Choose Repair Mode: Open HitPaw Video Enhancer and navigate to the video repair section. Choose the corruption mode or click on “Intelligent repair detection and repair” to drag and drop your damaged video file into the software.

    download hitpaw video enhancer
  • Step 3. Start the Repair Process: Hit the 'Start Repair' button to let the software do its magic. The AI will analyze and fix the video issues automatically.

    initiate corrupted video repair
  • Step 4. Preview and Save: Once the repair is complete, preview the video within HitPaw to ensure the quality meets your expectations. If satisfied, save the repaired video to your desired location.

    repair corrupted video repair

FAQs of FFMPEG Deinterlace

Q1. How to avoid corrupting FFMPEG deinterlace video?

A1. To avoid corrupting your video, ensure you're using the correct syntax and parameters for your chosen deinterlace filter. Always make a backup of the original video before applying any changes.

Q2. Does FFMPEG deinterlace keep the original video quality?

A2. FFMPEG deinterlace aims to improve the playback quality of interlaced videos on modern displays by removing interlace artifacts. While it can significantly enhance visual clarity, the process may slightly alter the original video quality due to the nature of deinterlacing.


FFMPEG deinterlacing is a powerful tool that breathes new life into old, interlaced videos, making them more enjoyable on today's screens. To get a better effect, HitPaw Video Enhancer focuses on the details and provides details.

By following the right steps and being mindful of the settings, you can transform your videos, avoiding common pitfalls and ensuring your memories and projects look their best.

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