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• riff : don’t overwrite bps from WAVEFORMATEX if EXTENSIBLE doesn’t contain that data.

  2 mai 2012, par Hendrik Leppkes

  riff : don’t overwrite bps from WAVEFORMATEX if EXTENSIBLE doesn’t contain that data.
  According to the specification on the MSDN [1], 0 is valid for that
  
  particular field, and it should be ignored in that case.
  [1] : http://msdn.microsoft.com/en-us/library/windows/desktop/dd757714(v=vs.85).aspx
  Bug-Id : 950
  Signed-off-by : Anton Khirnov <anton@khirnov.net>
  

  • [DBH] libavformat/riffdec.c

• How to create a video in .net6 [closed]

  22 mai 2023, par mans

  I am trying to create a video from a series of images i .net core (6.0)

  


  I am looking for a solution like this :

  


  VideoCreator video=new VideoCreator("MyVideo.mp4");

for (int i=0;i<1000;i++)
{
     var image=getImage();
     video.addFrame(image);
}
video.close();


  


  I already tried these solutions, and I could not make them work or compile :

  


  OpenCVSharp

  


  This is compiling properly in .net 6 but is sot reliable when writing videos. I could get a blank video, especially if the getImage function took a long time to return an image (for example, 20 sec) and the above code is run in a thread. All in one : the system did not produce video reliably.

  


  AForge.net

  


  This library and its related library (Accord.NET) don't work on.net core. My attempt to use them did not produce any compilable software (for example AForge.video.ffmpeg or AForge.Video.VFW) are not available in .net core).

  


  So my questions :

  


  

  1. What is the best way to create a video in .net core reliably ?

  


  2. I am using .net core as I am using Microsoft ML engine, is the ML engine available for framework ?

  


  3. My target platform is Windows, is there any way that I can combine .net and framework applications/libraries ?

  


  


• How can I make a Transcoded Video Filestream using C# and .NET Core

  25 avril 2021, par Drew Chase

  Overview

  


  I'm currently working on a media streaming server using ASP.net Core REST Server. I'm currently using .net 5.0 and ASP.net Core MVC

  


  What I need

  


  I need to be able to dynamically down-res the original video file. from 1080p to 720p for example.
Also I need to be able to make the media file able to be transcoded to a different encoding based on client capabilities.

  


  What I've Tried

  


  I've been looking for a library that can manage this feat, but I can't seem to find one. I thought FFMpeg would be able to do this. I know this is possible because applications like plex and emby seem to manage this.

  


  What I've Done

  


  [HttpGet("/api/streaming/video")]
public IActionResult GetFile()
{
    string path = "C:\Path\To\Video\FILE.mp4";
    System.IO.FileStream stream = new(path, System.IO.FileMode.Open, System.IO.FileAccess.Read);
    Microsoft.AspNetCore.Mvc.FileStreamResult file = File(stream, "video/mp4", true);
    return file;
}


  


  Framework Tried

  


  

  • Xabe.FFmpeg

  


  • FFMpegSharp