digital_video_introduction

A hands-on introduction to video technology: image, video, codec (av1, vp9, h265) and more (ffmpeg encoding). Translations: 🇺🇸 🇨🇳 🇯🇵 🇮🇹 🇰🇷 🇷🇺 🇧🇷 🇪🇸 (by leandromoreira)

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digital_video_introduction reviews and mentions

Posts with mentions or reviews of digital_video_introduction. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-25.
  • Breakdown of AV1 Video Codec
    2 projects | news.ycombinator.com | 25 Dec 2023
    There's a great introduction to video tech, including codecs, at https://github.com/leandromoreira/digital_video_introduction
  • A Hands-On Introduction to Video Codec Technology and FFmpeg
    1 project | news.ycombinator.com | 21 Jul 2023
  • Topics to cover in a 101 AV class
    1 project | /r/CommercialAV | 2 Feb 2023
    A couple of AV centric scenarios I'd explore: - Set up two speakers fed with a mono signal, flip the phase on one and have students move around the area. From this introduce constructive and destructive interference and some basic acoustics. - Using an oscilloscope (or just prepped graphics) show a sine wave on an unbalanced line, how this is paired with an inverted copy of itself on a balanced line, and how this works to cancel transmission noise. - With an analogue signal now pictured, introduce analogue to digital conversion and what sample rate and bit depth mean. From this you can also start to introduce why gain staging is important in both pure analogue systems and those where you're bouncing between analogue and digital domains. - Introduce video: colour channels, different ways of representing colour and some (very surface level) compression basics like chroma subsampling. Really good resource for that here. - Introduce base patterns for getting any signals arounds: dedicated circuits (analogue audio, HDMI video, RS-232 control, logic IO) and network based (again for audio, video, and control). Dive intro signal flow, how to read a schematic and where reasoning about each of these modes differs.
  • Crestron DMC-D-4K Class Tips/Things to Watch out For
    1 project | /r/CommercialAV | 25 Jul 2022
    If you want to keep digging from there, get familiar with the compression on NVX, JPEG-XS, and how it behaves. intoPIX are the upstream vendor that do some of the NVX internals and have some great resources on that here: https://www.intopix.com/jpeg-xs. For a guide on all things digital video I also highly recommend https://github.com/leandromoreira/digital_video_introduction.
  • [OC] Finally managed to sync the moshing effect to the beat of the music, here's what it looks like on a small test section of a music video
    1 project | /r/datamoshing | 6 Jul 2022
    Edit: After finishing writing the comment, I realized that it was more technical than I intended, and assumes that the reader has a basic to medium understanding of video compression. If not, I recommend this writeup/tutorial of digital video, especially the section about frame types.
  • Ask HN: How can I learn about video encoding, h.264, ffmpeg, etc.
    3 projects | news.ycombinator.com | 1 Apr 2022
    A good high-level breakdown of H.264: https://sidbala.com/h-264-is-magic/

    Associated HN post (although there have been a few): https://news.ycombinator.com/item?id=30710574

    More technical: https://github.com/leandromoreira/digital_video_introduction...

  • H.264 is magic: a technical walkthrough
    9 projects | news.ycombinator.com | 17 Mar 2022
    For those interested in this topic, I highly recommend the approachable but more extensive technical introduction at https://github.com/leandromoreira/digital_video_introduction
  • Help and guidance for a Coding interview for the role of Media Video Engineer (Video Quality)
    1 project | /r/VIDEOENGINEERING | 21 Jan 2021
    Go look at this. https://github.com/leandromoreira/digital_video_introduction
  • A note from our sponsor - SaaSHub
    www.saashub.com | 26 May 2024
    SaaSHub helps you find the best software and product alternatives Learn more →

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