Giter VIP home page Giter VIP logo

Comments (3)

CryShana avatar CryShana commented on June 18, 2024

FFmpeg can parse M3U8 files, so you could just pass the m3u8 link directly to FFmpeg.

Something like this:

using System;
using CryMediaAPI;
using System.Collections.Generic;

var links = new List<string> {
    "http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8",
    "http://demo.unified-streaming.com/video/tears-of-steel/tears-of-steel.ism/.m3u8"
};

int fileCounter = 0;
foreach (var l in links)
{
    var output_file = $"video_{fileCounter++}.mp4";

    var process = FFmpegWrapper.ExecuteCommand("ffmpeg", $"-i \"{l}\" -c copy {output_file}");

    process.WaitForExit();

    Console.WriteLine($"Downloaded video from '{l}' --> {output_file}");
}

This will run FFmpeg for every link and save it to file video_0.mp4 and then video_1.mp4 and so on...

To avoid transcoding, I just used the flag -c copy to copy all the content. Sometimes you may also want to transcode it. If you want H.264, you could just replace it with -c:v libx264 (the audio is converted automatically as well)

If you want to run multiple clients at the same time, you could easily paralize this. Or just take away the Process.WaitForExit() and first start all the FFmpegs - and later wait for all of them.

from crymedia.

zydjohnHotmail avatar zydjohnHotmail commented on June 18, 2024

Hello:
Thanks for your reply, I have tested with the links, and they worked.
However, I need other code samples for parallel clients.
For example, I have the following 2 live streaming URL for Olympic games, which is underway at the same time, which will be finished within one hour time.
var links = new List {
"https://video.maxline.by:444/n1/stream61/chunks.m3u8?nimblesessionid=4798699",
"https://video1.maxline.by:444/o1/stream09/chunks.m3u8?nimblesessionid=3015537" };
I have to download the both URL at the same time.
Your code above now only download the first, and after the first is done, continue the second.
Please advise!
Thanks,

from crymedia.

CryShana avatar CryShana commented on June 18, 2024

Either create separate threads, or tasks ...

But I think the easiest way with the existing code is to just replace the foreach loop with Parallel.ForEach and limit number of parallelism with ParallelOptions like this:

// add these to the existing usings
using System.Threading.Tasks;
using System.Threading;

int fileCounter = 0;
Parallel.ForEach(links, new ParallelOptions
{
    // we want max. 2 clients running in parallel
    MaxDegreeOfParallelism = 2
}, l =>
{
    var fileCount = Interlocked.Increment(ref fileCounter);

    var output_file = $"video_{fileCount}.mp4";
    var process = FFmpegWrapper.ExecuteCommand("ffmpeg", $"-i \"{l}\" -c copy {output_file}");

    process.WaitForExit();

    Console.WriteLine($"Downloaded video from '{l}' --> {output_file}");
});

OR you could also store all processes and wait for them to exit like this:

// add this to existing usings
using System.Diagnostics;

var processes = new List<Process>();

int fileCounter = 0;
foreach (var l in links)
{
    var output_file = $"video_{fileCounter++}.mp4";
    var process = FFmpegWrapper.ExecuteCommand("ffmpeg", $"-i \"{l}\" -c copy {output_file}");

    processes.Add(process);
}

// wait for all processes to finish
foreach (var p in processes) p.WaitForExit();

from crymedia.

Related Issues (8)

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.