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• streaming code doesn't work for Vk.com, work fine on other website

  3 décembre 2018, par Anirudha Gupta

  I am using Compiled binary of ffmpeg in my windows pc and calling the ffmpeg exe by command to livestream the video. The code was working fine on Youtube, Twitter’s streaming site and twitch. Today I tried my code with vk.com and it doesn’t work

  ffmpeg -re -i file:"C:\Users\{username}\Desktop\test.mp4" -acodec libmp3lame  -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -bufsize 6000k -framerate 24 -vb 64k -maxrate 1500k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 30 -crf 23 -c:a copy -f flv rtmp://stream2.vkuserlive.com:443/live?srv=629725&s={removedforpriavacyreason}=/Bq7vN8RNctg

  I was calling the command this way,it’s work on yt, twitch but it doesn’t work with vk.com it’s keep telling handshake issue.

  I tried to call it with changing the url, In case Vk.com handle the url differently. Anyone have workaround for this, it’s only have problem with vk.com

• s is not recognized as an internal or external command in ffmpeg when streaming to Vk.com

  4 décembre 2018, par Anirudha Gupta

  I am trying to streaming using ffmpeg windows binary. It’s work on youtube and other site but not on vk.com

  ffmpeg -re -i file:"C:\Users\{uername}\Desktop\test.mp4" -acodec libmp3lame  -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -bufsize 6000k -framerate 24 -vb 64k -maxrate 1500k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 30 -crf 23 -c:a copy -f flv rtmp://stream2.vkuserlive.com:443/live?srv=629725&s=aWQ9QnE3dk44Uk5jdGcmc2lnbj1lR3pCWmdSdTdxTVpCTDdkMUVGR0lRPT0=/Bq7vN8RNctg

  It’s keep saying

  Conversion failed!
  
  's' is not recognized as an internal or external command,
  
  operable program or batch file.

  This happen on new version. If I test it on old version, it’s telling me that handshake failed with server. Anyone have idea on what is it, I am not removing my key and url so you can test. All you need is mp4 file in your pc and you can run this thing in your PC.

• Trim video file to edit-out silent parts

  18 décembre 2018, par karel

  I have video recordings of webinars with long silent gaps in them. I need to edit out the silent parts (both the audio and corresponding video tracks). I need to do this through a linux command and be able to do this as a batch action for several video files.
  Ideal scenario is to run a command that :

  1. detects long silent gaps (longer than defined time threshold, e.g. 5
     seconds)
  2. cuts out long silent sections and leaves only 5 seconds of
     silent video bet ween all ’loud’ video sections.

  In another post I found this great script (below). It does the job, but it a) doesn’t leave in extra silent 5 seconds of video which I need after every ’loud’ video part, and b) doesn’t compile produced video files into one composed video file (this problem is less of an issue for me, although it would be great to do that in the same command).

  I didn’t figure out how to modify the script to do this.

  Thanks beforehand for any suggestion.

  ffmpeg -i input.mkv -filter_complex "[0:a]silencedetect=n=-90dB:d=0.3[outa]" -map [outa] -f s16le -y /dev/null |& F=’-aq 70 -v warning’ perl -ne ’INIT $ss=0 ; $se=0 ; if (/silence_start : (\S+)/) $ss=$1 ; $ctr+=1 ; printf "ffmpeg -nostdin -i input.mkv -ss %f -t %f $ENVF -y %03d.mkv\n", $se, ($ss-$se), $ctr ; if (/silence_end : (\S+)/) $se=$1 ; END printf "ffmpeg -nostdin -i input.mkv -ss %f $ENVF -y %03d.mkv\n", $se, $ctr+1 ; ’ | bash -x