Pagy
FFmpeg
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Pagy | FFmpeg | |
---|---|---|
10 | 486 | |
4,460 | 42,374 | |
- | 2.8% | |
9.5 | 10.0 | |
5 days ago | 5 days ago | |
Ruby | C | |
MIT License | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Pagy
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Build Load More Pagination with Pagy and Rails Hotwire
Now, let's dive into the pagination part of this post: setting up Pagy for handling pagination in our Rails application. If you haven't included the Pagy gem in your project, you'll need to add it manually. Here's how you can do it:
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Pagination in Rails with Pagy gem
Several gems are available for pagination in Rails, but the Pagy gem is one of the most popular and efficient. It is a fast and lightweight library that provides a simple and flexible API. In this article, we’ll explore how to use it to implement pagination in Rails.
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Rux: A JSX-inspired way to render view components in Ruby
> Am I understanding correctly that there’s a significant difference in performance between using a ViewComponent + a partial vs. a ViewComponent which renders html via a tag - from inside the component?
I don't think there will be much difference at all in everyday use, but some libraries that value performance don't avoid templates for that reason, Pagy for example.
https://github.com/ddnexus/pagy
Personally I omit them in my projects whenever we want to customise attributes, I hate seeing stuff like this in templates:
Some header
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A powerful search feature with what Rails provides out of the box
The next step was about backporting the templates, adding Pagy gem for handling pagination and creating the controller. I was then able to show the listings with the models, but the filtering was not working.
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The Ultimate Search for Rails - Episode 1
On the backend, we'll need a few tools. Apart from the classics (ActiveRecord scopes and the pg_search gem), you’ll see how the (yet officially unreleased but production-tested) all_futures gem, built by SR authors, will act as an ideal ephemeral object to temporarily store our filter params and host our search logic. Finally, we’ll use pagy for pagination duties.
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My project: railstart app
Pagination
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Pagination and infinite scrolling with Rails and the Hotwire stack
In our application, we will use Pagy to implement pagination. Let’s install Pagy now, following along with the Pagy quick start guide.
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Load More Pagination in Rails with Hotwire Turbo Streams
For pagination I tend not to use gems like pagy or kaminari, instead implement this functionality just using limit and offset.
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Ten Ruby gems for Rails you should definitely know about
Kaminari hooks onto ActiveRecord associations and makes it super easy to page them. Pagy is another option that seems to have a solid API but I haven't tried it yet.
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Re-Wheel series part 1 - How does Rails' find_each work?
But how is this implemented? Well, if you use pagination in your index methods with gems like pagy, kaminari or will_paginate you will find that the same idea is happening here, they are using the power of SQL's LIMIT and OFFSET to fetch only a portion of the data each time. So in the 1 million users example, find_each will perform 1000 thousand queries with a limit of 1000 while changing the offset properly so we don't miss any record.
FFmpeg
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Creando SubtĂtulos Automáticos para VĂdeos con Python, Faster-Whisper, FFmpeg, Streamlit, Pillow
FFmpeg (https://ffmpeg.org/)
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Show HN: CompressX, my FFmpeg wrapper for macOS, made $9k in the last 4 months
GPL2
Since FFmpeg is GPL2, doesn’t that require CompressX to disclose its source code?
IANAL, apologies if I miss understand license requirements.
https://github.com/FFmpeg/FFmpeg?tab=License-1-ov-file
- Microsoft offered FFmpeg one-time payment instead of support contract
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Writing x86 SIMD using x86inc.asm (2017)
This turns out to be a lot of assembly macros to help write one x86 assembly. https://github.com/FFmpeg/FFmpeg/blob/master/libavutil/x86/x...
The sibling comment recommending compiler intrinsics is probably the best way to go for writing SIMD code. A mixture of `` style types and intrinsics to specify instructions is a solid 90% solution compared to assembly.
If you want that last 10%, I think macros are putting the emphasis in the wrong place. They're a somewhat easy way to build up a language abstraction which will work if held carefully, but I'm confident the dev experience using this abstraction when you write invalid code will be deeply confusing.
I would suggest to write a parser instead of the macros. That'll tell you clearly when the syntax is invalid (though possibly not with much precision) and it'll give you a place to put semantic analysis for where valid syntax encodes nonsense. Do the equivalent of the macro expansions on the parsed tree instead of on the text. Emit asm as the "back end".
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Video Generation with Python
You might have heard of FFMPEG or ImageMagick for image and video edition in a programmatic way. MoviePy is a Python module for video editing (Python wrapper for FFMPEG and ImageMagick). It provides functions for cutting, concatenations, title insertions, video compositing, video processing, and the creation of custom effects. It can read and write common video and audio formats and be run on any platform with Python 2.7 or 3+.
- I want some logically difficult c programs
- Looking for a good file converter for upload testing
- Best Way to Rip Rare DVDs?
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11 Ways to Optimize Your Website
There are many cloud-based tools and websites that can convert your images, but the problem with these tools is that you usually have to upload the files for them to be processed, and some of their services are not free. In this article, I'd like to introduce a piece of software called FFmpeg, which allows you convert the images locally with one simple command.
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AI-assisted removal of filler words from video recordings
To run the demo locally, be sure to have Python 3.11 and FFmpeg installed.
What are some alternatives?
Kaminari - ⚡ A Scope & Engine based, clean, powerful, customizable and sophisticated paginator for Ruby webapps
mpv - 🎥 Command line video player
will_paginate - Pagination library for Rails and other Ruby applications
ffmpeg-python - Python bindings for FFmpeg - with complex filtering support
order_query - Find next / previous Active Record(s) in one query
OpenH264 - Open Source H.264 Codec
tailwindcss-rails
Exoplayer - An extensible media player for Android
strong_migrations - Catch unsafe migrations in development
hlsdl - C program to download VoD HLS (.m3u8) files
phony_rails - This Gem adds useful methods to your Rails app to validate, display and save phone numbers. It uses the super awesome Phony gem (https://github.com/floere/phony).
GStreamer - GStreamer open-source multimedia framework