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• Stream video content through Web API 2

  12 juin 2020, par FaNIX

  I'm in the process of working out what the best way is going to be to do the following :

  



  I have a bunch of CCTV footage files (MP4 files, ranging from 4MB-50MB in size), which I want to make available through a web portal. My first thought was to stream the file through Web API, so I found the link below :

  



  http://www.strathweb.com/2013/01/asynchronously-streaming-video-with-asp-net-web-api/

  



  After implementing a sample project, I realised that the example was based on Web API 1, and not Web API 2.1, which is what I'm using. After doing some more research, I got the code to compile with WebAPI 2.1. I then realised that if I want to do streaming I cannot use MP4 files, there is a fair amount of technical detail behind this, so here is the thread :

  



  Best approach to real time http streaming to HTML5 video client

  



  It seems for this to work I need to encode my MP4 files to something like WebM, but that is going to take too much time. Icecast (http://icecast.org/), which is a streaming server, but I haven't tried it out yet, again not sure if this is what I need to do.

  



  Now that I think of it, I actually don't need live streaming, I just need to allow the client to play the video file through their browser, perhaps using HTML5 video element ? The thing is, my application needs to work on IOS as well, so I reckon that means I cant even encode my MP4 to FLV and just use flash.

  



  All I really need is to have all my video clips as thumbnails on a web page, and if the client clicks on one, it begins to play ASAP, without having to download the entire file. Think of the "Watch Trailer" feature on imdb.com. Simply just play a video file, thats really what I want. I don't need LIVE streaming, which is what I think WebM is for ? Again, not sure.

  


• How to convert .m2ts .vob Video to mkv without losing quality in COLAB FFMPEG

  19 mai 2020, par Adnan Katper

  I want to convert .m2ts and vob videos to .mkv in same resolution and quality, so how to do it in COLAB ?
I used a script All in One 1.9.1 it converts successfully but output file is verly low quality and its avc codec is version 3 while i want it to be version High@L4.1.

  



  I have mounted my gdrive and will use it as source of videos.

  



  All in one 1.9.1
https://colab.research.google.com/github/pcodejs/Codemaster/blob/master/All_in_One_1_9_1.ipynb

  


• Video with drop frames with ffmpeg

  28 mai 2018, par Gabe Mata

  I am recording videos using ffmpeg in a production environment almost non-stop for 15 hours a day. Sometimes the videos are freezing for a few seconds.

  I believe the hardware is adequate. It is an i7 with 16GB ram and windows 10. The videos are on average about 2:00 minute each.

  This happens a few times a day 10 or so that I am awarded.

  Here is a link to one of the videos that froze :

  https://drive.google.com/open?id=1q6R2l1AkCko-uh2KZ6X8AChdGU5XBOy7

  It freezes at 0:03 and then restarts at 0:16

  Here is the ffmpeg command I am using :

  ffmpeg -i "rtsp ://10.0.131.2/media/video1" -f segment -segment_time 9000 -segment_format mp4 -reset_timestamps 1 -strftime 1 -c copy -map 0 gabe.mp4

  Can I decreases the quality of the videos so videos don’t randomly freeze ?

  Would recording without audio help the videos not randomly freeze ?

  Thanks,

  Gabe