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• ExoPlayer and deinterlacing feature

  21 février 2021, par Suppaman

  I want to use ExoPlayer to show interlaced video but, especially for SD content, the video looks really bad without any deinterlacing feature. Looking in the ExoPlayer project it seem the player doesn't have such deinterlacing feature and doesn't seem in plan to be added. I'm thinking to try add deinterlacing by using the deinterlacing engine of ffmpeg library. However it don't seem and easy task. I found some projects that could help me like this ExoPlayerFilter that apply a filter on the frame before show. This could be a possible way to "deinterlace" the frame before show. Another possible suggestion comes from the tread in github Exoplayer project here. This could be another possible way to proceed. My problem is that I have a limited time to try add this feature and I would to know from people having more experience than me what would be most "suggested" way to follow or if someone know another better way to reach my results.

  


  Thank you

  


• How to simplify ffmpeg commands and efficiently ?

  24 février 2021, par Siva Kumar

  i'm quite new to ffmpeg and i've been learning how to make a 5 hour videos which loops for 5 hours and also add a intro video in the start of the video and at a outro/endscreen video at the end. I would like to know how i could do it more efficiently since i feel it's really taking a long time and too much work. My process and command's are as follows :

  


  video specs : 3840x2160 , 60fps , 18M bitrate, hevc265

  


  


  1. First i create a video of intro and outro/endscreen and save them as .mp4 format(both are 10secs long) using adobe premier.

     


  


  2. i create a audio using adobe audition for the x amount of duration i want it to play, in this case 5 hours

     


  


  3. I create the main video(which is 10 secs long) which i want to make it loop for 5 hours or any amount of time i want(this takes alot of time and is a huge file size and also adding name of the videos in the loop.txt etc video1.mp4, video2.mp4 till i reach to 5 hours), i use the command :
ffmpeg -f concat -i loop.txt -c copy main5hours.mp4

     


  


  4. Than i concat the intro,main,outro/endscreen videos together using :
ffmpeg -f concat -i files.txt -c copy videowithoutaudio.mp4

     


  


  5. Than merge video and audio using :
ffmpeg -i videowithoutaudio.mp4 -i audio.flac -c:v copy -c:a copy finalvideo.mp4

     


  


  


  So this process takes a lot of time and file size and want some advice how i could do this more efficiently saving myself both time and file size and less work.

  


  I read that i could also overlay the intro and endscreen videos but not sure how to do them and will it make any difference ?
p.s : i'll be using the same intro and endscreen videos for all other videos i'll be making. Thanks in advance for any advice and help.

  


• How to send all traffic from tcp port 1935 through http_proxy ?

  4 mars 2021, par Karol Gruszka

  I'm using a server that uses an internal proxy to access the internet.
  
In my use case, I need to live stream an application using FFmpeg to a Restream.io using RTMP protocol which can be run using port 1935.

  


  The problem is that FFmpeg probably doesn't make any use of environment variables like $http_proxy and it's unable to resolve live.restream.io hostname.
  
So far I tried configuring proxychains by adding the internal proxy to the proxychains proxy list and it worked for a simple telnet connection without any problems - proxychains4 live.restream.io 1935 but seems like it's not going to work with FFmpeg.

  


  How can I make the TCP on port 1935 go through an internal proxy in order to reach the desired hostname ?