Background

• Video encoding is heavy CPU task
• At the moment, almost all the users' videos are being encoded by 3Speak Infrastructure
• This is more of a centralised solution
• 3Speak would like to shift to decentralised solution

Current Solution

• 3Speak already has implemented decentralised and many Beta users are testing our Decentralised solution
• I've already talked about setting up video encoder node which is part of it

WHY PART

• No solution is perfect.
• Everything is we do - is a journey towards - excellence & perfection.
• At the moment, there are some challenges in current solution which is rolled out for beta users.
• I, as an individual, want to explore entirely different approach
• I call that approach - On-device-video encoding.
• AGAIN - BUT - WHY?
• I want our users as independent as possible.
• User should be able to encode their own video
• User should be able to self-host their own video
• User should be able to use their own infrastructure
• With this solution, I want to give power back to the community
• I want to empower individual members

What is On-Device-Encoding?

• You can use your mobile-device to encode your own video.
• I am sure you must have tried many apps like these
• If not, you can try searching for "Video compression" on AppStore or PlayStore.
  

For whom

• This solution is for those who wants to encode their own video
• Upload on their own (self host)
• And publish without relying on 3Speak infrastructure or 3Speak Video Encoders
• To be precise, For those who don't want to wait for their video to be encoded by others.

Okay but tell me HOW.

• Everything I do is open source.
• HOW part is done by code & it's available to read on the github.
• Code is at the moment commented out (because it's not production ready)
• Here is the link to the experimental code

Give me Explicit code.

    var pathToEncoding = '${externalDir.path}/encoding';
    var encodingDirPath = Directory(pathToEncoding);
    var exists = await encodingDirPath.exists();
    if (exists) {
      await encodingDirPath.delete(recursive: true);
    }
    var encodingDir = await Directory(encodingDirPath.path).create();
    var encoding480Dir = await Directory('${encodingDir.path}/480').create();
    var encoding720Dir = await Directory('${encodingDir.path}/720').create();
    var encoding1080Dir = await Directory('${encodingDir.path}/1080').create();
    var resultOf480Resize = await FFmpegKit.execute(
        "-i ${file.path} -vf scale=480:-1  ${encoding480Dir.path}/output.mp4");
    log('480 done');
    var resultOf720Resize = await FFmpegKit.execute(
        "-i ${file.path} -vf scale=720:-1 ${encoding720Dir.path}/output.mp4");
    log('720 done');
    var resultOf1080Resize = await FFmpegKit.execute(
        "-i ${file.path} -vf scale=1080:-1 ${encoding1080Dir.path}/output.mp4");
    log('1080 done');

• What language? - It's DART programming language
• Which Library? - FFmpeg for flutter
• Of course, code written above is NOT perfect
• I want feedback from community.
• Those who have knowledge, I request them to guide me to accomplish this task

NOOO ! I don't want to use mobile. I want to use DESKTOP.

• Okay Cool. I get that your mobile is something you don't want to use for video-encoding.
• Just download Android Emulator (available for any operating system)
• Install app
• Start encoding video on your DESKTOP - Problem solved.

Okay. Video encoded. What's next?

• Once we have a valid solution working for On Device Video Encoding,
• I would like to switch to self-hosting.

Feedback / Thoughts / Inputs / Suggestions

• I want to know what community thinks about this approach.
• I want to know what is the expectation from Community.
• Please READ my post, Re-Share, upvote 🙏

Who am I?

• I am @sagarkothari88.
• I am currently working on a mobile application for 3Speak community members

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• I have the most number of Heavy weight encoder nodes running.

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Have a good one