videos | generated scenes used in 3blue1brown videos

 by   3b1b Python Version: Current License: No License

kandi X-RAY | videos Summary

kandi X-RAY | videos Summary

videos is a Python library. videos has no bugs, it has no vulnerabilities and it has medium support. However videos build file is not available. You can download it from GitHub.

This project contains the code used to generate the explanatory math videos found on 3Blue1Brown. This almost entirely consists of scenes generated using the library Manim. See also the community maintained version at ManimCommunity. Note, while the library Manim itself is open source under and MIT license, the contents of this project are intended only to be used for 3Blue1Brown videos themselves. Copyright 2020 3Blue1Brown.

            kandi-support Support

              videos has a medium active ecosystem.
              It has 4555 star(s) with 1473 fork(s). There are 84 watchers for this library.
              It had no major release in the last 6 months.
              There are 20 open issues and 28 have been closed. On average issues are closed in 37 days. There are 3 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of videos is current.

            kandi-Quality Quality

              videos has 0 bugs and 0 code smells.

            kandi-Security Security

              videos has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              videos code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              videos does not have a standard license declared.
              Check the repository for any license declaration and review the terms closely.
              Without a license, all rights are reserved, and you cannot use the library in your applications.

            kandi-Reuse Reuse

              videos releases are not available. You will need to build from source code and install.
              videos has no build file. You will be need to create the build yourself to build the component from source.

            Top functions reviewed by kandi - BETA

            kandi has reviewed videos and discovered the below as its top functions. This is intended to give you an instant insight into videos implemented functionality, and help decide if they suit your requirements.
            • Visualize the x - rule
            • Create a triangle at the given point .
            • Solves the equation .
            • Visualize the limits for each facet .
            • Visualize the infinite product .
            • Show simulated reviews .
            • Removes all non - coprimes .
            • Raises an error on the observer .
            • Visualize the expansion .
            • Draws the projection lines
            Get all kandi verified functions for this library.

            videos Key Features

            No Key Features are available at this moment for videos.

            videos Examples and Code Snippets

            Export Your Results-Export videos
            C++dot img1Lines of Code : 26dot img1License : Permissive (MIT)
            copy iconCopy
            import taichi as ti
            pixels = ti.field(ti.u8, shape=(512, 512, 3))
            def paint():
                for i, j, k in pixels:
                    pixels[i, j, k] = ti.random() * 255
            result_dir = "./results"
            video_manager =  
            How do I download only new videos from a playlist?
            pypidot img2Lines of Code : 2dot img2no licencesLicense : No License
            copy iconCopy
            youtube-dl --download-archive archive.txt ""
            youtube-dl --download-archive archive.txt ""
            FAQ-Post-processing Options:-How do I download only new videos from a playlist?
            Pythondot img3Lines of Code : 2dot img3License : Permissive (Unlicense)
            copy iconCopy
            youtube-dl --download-archive archive.txt ""
            gluon-cv - videos monodepth2
            Pythondot img4Lines of Code : 80dot img4License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            """02. Predict depth from an image sequence or a video with pre-trained Monodepth2 models
            This article will demonstrate how to estimate depth from your image sequence or vide  
            Concatenate multiple videos .
            pythondot img5Lines of Code : 21dot img5License : Permissive (MIT License)
            copy iconCopy
            def concatenate(video_clip_paths, output_path, method="compose"):
                """Concatenates several video files into one video file
                and save it to `output_path`. Note that extension (mp4, etc.) must be added to `output_path`
                `method` can be either   
            Get a list of all videos
            javadot img6Lines of Code : 21dot img6License : Permissive (MIT License)
            copy iconCopy
            public List getAllTutorial() {
                    try {
                        FileInputStream fileIS = new FileInputStream(this.getFile());
                        DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
                        DocumentBuilder builder = bu  

            Community Discussions


            Downloading files from public Google Drive in python: scoping issues?
            Asked 2022-Mar-07 at 17:22

            Using my answer to my question on how to download files from a public Google drive I managed in the past to download images using their IDs from a python script and Google API v3 from a public drive using the following bock of code:



            Answered 2022-Mar-04 at 12:57

            Well thanks to the security update released by Google few months before. This makes the link sharing stricter and you need resource key as well to access the file in-addition to the fileId.

            As per the documentation , You need to provide the resource key as well for newer links, if you want to access it in the header X-Goog-Drive-Resource-Keys as fileId1/resourceKey1.

            If you apply this change in your code, it will work as normal. Example edit below:



            Linking Patreon API with a Flutter application
            Asked 2022-Mar-04 at 02:13

            I am very new to using Flutter and have never properly used an API without help. I want to make my application free (without tons of ads) so I was hoping to create a Patreon to support it's upkeep. When looking for tutorial videos online or any examples of code to use for either Flutter or any other languages I know how to use, I came up empty handed. So I was posting this question here hoping that someone could help me link the Patreon API to Flutter. The documentation doesn't say it connects directly to Flutter, so you'll have to use another language to access the information (best bet is Javascript or Python on my opinion) and relay that too Flutter.

            I (and possibly other people) would need a button created for OAuth login through Patreon (that works on both iOS and Android). When the user goes through the login, it needs to grab which tier they are supporting, their username, and when their subscription will renew (monthly or yearly?). This then needs to be translated to Text widgets (displaying the tier and/or username) and a "visible:" property for Visibility widgets (displaying certain content based on the user's monthly subscription and making the same content invisible or put behind a newly visible lock page when their subscription ends/expires).

            Sorry I know this is a lot to anwser, but I'm not very experienced with APIs and Flutter. I will appreciate any anwser that helps because I really want to make my app without tons of advertisements and I'm hoping this question will help other Flutter developers with the same goal of supporting their development financial without tons of advertising effecting the user's experiences on the app.

            Patreon API OAuth Documentation

            Flutter JS (I think this may help connect with the Patreon API, but I'm not sure?)

            Examples of code and a step by step guide would be fantastic, but anything will help. Thank you again!



            Answered 2022-Mar-04 at 02:13

            You want something like this:



            How can I convert to Swift async/await from GCD (DispatchQueue)?
            Asked 2022-Feb-24 at 15:54

            I am following Stanfords' CS193p Developing Apps for iOS online course.

            It is using the Grand Central Dispatch (GCD) API for a demo of multithreading. But they noted, that

            "GCD has been mostly replaced by Swift's new built-in async API as of WWDC 2021".

            So I wanted to learn how the code from the Lecture would look like after updating it to use this new API.

            After watching Apple's WWDC videos, it seems to me like
   .userInitiated).async { } is replaced in this new async API with Task { } or Task(priority: .userInitiated) {}, but I'm not sure, what has DispatchQueue.main.async { } been replaced with?

            So, my questions are:

            1. Am I correctly assuming, that .userInitiated).async { } has been replaced with Task(priority: .userInitiated) {}
            2. What has DispatchQueue.main.async { } been replaced with?

            Please help, I want to learn this new async-await API.

            Here's the code from the Lecture, using old GCD API:



            Answered 2022-Feb-24 at 15:54

            If you really are going to do something slow and synchronous, Task.detached is a closer analog to GCD’s dispatching to a global queue. If you just use Task(priority: ...) { ... } you are leaving it to the discretion of the concurrency system to decide which thread to run it on. (And just because you specify a lower priority does not guarantee that it might not run on the main thread.)

            For example:



            Javascript: frame precise video stop
            Asked 2022-Jan-28 at 14:55

            I would like to be able to robustly stop a video when the video arrives on some specified frames in order to do oral presentations based on videos made with Blender, Manim...

            I'm aware of this question, but the problem is that the video does not stops exactly at the good frame. Sometimes it continues forward for one frame and when I force it to come back to the initial frame we see the video going backward, which is weird. Even worse, if the next frame is completely different (different background...) this will be very visible.

            To illustrate my issues, I created a demo project here (just click "next" and see that when the video stops, sometimes it goes backward). The full code is here.

            The important part of the code I'm using is:



            Answered 2022-Jan-21 at 19:18

            The video has frame rate of 25fps, and not 24fps:

            After putting the correct value it works ok: demo
            The VideoFrame api heavily relies on FPS provided by you. You can find FPS of your videos offline and send as metadata along with stop frames from server.

            The site uses window.requestAnimationFrame() to get the callback.

            There is a new better alternative to requestAnimationFrame. The requestVideoFrameCallback(), allows us to do per-video-frame operations on video.
            The same functionality, you domed in OP, can be achieved like this:



            How to prevent actor reentrancy resulting in duplicative requests?
            Asked 2022-Jan-21 at 06:56

            In WWDC 2021 video, Protect mutable state with Swift actors, they provide the following code snippet:



            Answered 2022-Jan-05 at 00:30

            The key is to keep a reference to the Task, and if found, await its value.




            How to memory-map a PCI BAR using PCIDriverKit?
            Asked 2022-Jan-18 at 13:08

            How to memory-map a PCI Base Address Register (BAR) from a PCIDriverKit driver (DEXT) to a userspace application?

            Memory-mapping from a driver extension to an application can be accomplished by implementing the IOUserClient::CopyClientMemoryForType in the user client subclass (on the driver side) and then calling IOConnectMapMemory64 (from the user-space application side). This has been very nicely and thoroughly explained in this related answer.

            The only missing bit is getting an IOMemoryDescriptor corresponding to the desired PCI BAR in order to return it from the CopyClientMemoryForType implementation.

            Sample code

            Asked another way, given the following simplified code, what would be the implementation of imaginaryFunctionWhichReturnsTheBARBuffer?



            Answered 2022-Jan-16 at 17:01

            Turns out IOPCIDevice::_CopyDeviceMemoryWithIndex was indeed the function needed to implement this (but the fact that it's private is still an inconvenient).

            Sample code

            Bellow is some sample code showing how this could be implemented (the code uses MyDriver for the driver class name and MyDriverUserClient for the user client).

            Relevant sections from MyDriver.cpp implementation:



            Video_player Crashes Android Emulator in Flutter
            Asked 2022-Jan-11 at 08:53

            I am trying to use the video_player, but I am getting the below error. I have also added an MRE (minimum reproducible example).

            I have used an emulated Pixel 4, an emulated Pixel 4 XL, and an emulator Pixel 5 with the Android Studio Beta, but none of them worked.

            The below error was when I was using a Pixel 4 XL, but the error was the same with all of them.




            Answered 2022-Jan-11 at 08:53

            It can be a bug of that Flutter package, indeed. Have you tried to create an issue in GitHub of that package?

            Secondly, during my development, I see several times when emulators just fail and real devices always work. The solution I used is - simply to do not test them on simulators. Real users never use simulators, aren't they?

            It can be a bug of the library when running on x86 arch (the arch simulators use). Then, nobody with a real device (arm arch) will ever see the bug.

            Thirdly, what about trying to use "cloud real devices" to test whether they work on real Pixel devices that you are worried about. There are many platforms that host some real devices and you can connect to them via a webpage and test your app.



            If statement does not work properly unless I use a debugger to step through it. Using pytube
            Asked 2021-Dec-25 at 07:26

            I'm using pytube to convert a url that is for sure a link to a YouTube playlist into a pytube.Playlist()



            Answered 2021-Dec-25 at 07:26

            Playlist.video_urls is a DeferredGeneratorList, not a list. So until you iterate over it, it doesn't have a length.



            FFMPEG's xstack command results in out of sync sound, is it possible to mix the audio in a single encoding?
            Asked 2021-Dec-16 at 21:11

            I wrote a python script that generates a xstack complex filter command. The video inputs is a mixture of several formats described here:

            I have 2 commands generated, one for the xstack filter, and one for the audio mixing.

            Here is the stack command: (sorry the text doesn't wrap!)



            Answered 2021-Dec-16 at 21:11

            I'm a bit confused as how FFMPEG handles diverse framerates

            It doesn't, which would cause a misalignment in your case. The vast majority of filters (any which deal with multiple sources and make use of frames, essentially), including the Concatenate filter require that be the sources have the same framerate.

            For the concat filter to work, the inputs have to be of the same frame dimensions (e.g., 1920⨉1080 pixels) and should have the same framerate.

            (emphasis added)

            The documentation also adds:

            Therefore, you may at least have to add a ​scale or ​scale2ref filter before concatenating videos. A handful of other attributes have to match as well, like the stream aspect ratio. Refer to the documentation of the filter for more info.

            You should convert your sources to the same framerate first.



            How to capture all videos in to be playable in video player script?
            Asked 2021-Dec-11 at 14:57

            In the example below, I'm trying to capture all the videos in this script. However, I'm only able to capture the first video. I understand this has to do with getElementById and not querySelectorAll, but I'm not sure how to implement it in this script.



            Answered 2021-Dec-11 at 14:57

            You were only selecting the first .wistia block with this line:

            const clickToPlay = document.querySelectorAll('.wistia')[0];

            The other issue is the duplicated id as you noted, so that only the first video would be properly loaded. I have removed the id attribute entirely from the HTML, and updated the JS to properly loop over each .wistia div, attach a click handler, and then read the video ID from the associated child node.

            The gist of the changes are:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install videos

            You can download it from GitHub.
            You can use videos like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.


            For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .
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            gh repo clone 3b1b/videos

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