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• How to add watermark with delay in FFmpeg

  28 décembre 2022, par Мохамед Русланович

  Am trying to put a gif file in all the edges of the video. So am using this command

  


  ffmpeg  -y -i film.mp4 -stream_loop -1 -i gif.gif -filter_complex \ 
"[1]colorchannelmixer=aa=0.8,scale=iw*1:-1[a];[0][a]overlay=
x='if(lt(mod(t\,16)\,8)\,W-w-W*10/200\,W*10/100)':
y='if(lt(mod(t+4\,16)\,8)\,H-h-H*5/200\,H*5/200)':
shortest=1" 
 -acodec copy output_task_3.mp4


  


  But now am required to put the gif file on each edge with delay of 10 minutes

  


  For exmaple :

  


  1- render gif at top left for only 16 seconds.
Then wait 10 minutes

  


  2- render gif at top right for 16 seconds.
Wait 10 minutes

  


  3- rendder gif at right buttom for 16 seconds.
Wait 10 minutes

  


  4- render gif at left buttom for 16 secnods.
Wait 10 minutes

  


  This scenario should be repete till the movie ends.

  


  How can i archive this ?

  


• FFmpeg ubuntu auto transcoding script [on hold]

  11 décembre 2015, par Sambir

  Hi guys i want to create an ffmpeg script which picks up files from one folder transcodes them then deletes the source.

  So think of the following scenario :

  I place file A.mp4 and A.srt in folder input
  I also place file B.mp4 and B.srt in folder input

  In the night a script is executed which picks up these files places them in the folder "transcoding" then starts to transcode the movies one by one. So not parallel.

  When finished new files should be created in the output folder by the ffmpeg script. And the files in the folder "transcoding" should be deleted.

  Can anyone help me out here. It does not seem to be that complex but since I am not that good at coding any help is appreciated :)

• FFMPEG Nvidia Encode corruption [closed]

  27 décembre 2019, par Terrabyte

  I’m trying to encode a 1080p video with FFMPEG with h264_nvenc. The scenario here is that, on videos spanning less than 1 hour encoding works fine and it completes in 1080p. But if the video is more than 1 hour it kicks me off ssh (I believe it hangs cause I can’t get back into ssh until after like 5 minutes, it refuses connection)

  I tried to debug it and this is what shows up at the end (I can’t paste the code because if i try to paste it the diamond question marks don’t show up so here’s an image instead) :
  

  I thought it was the video so I’ve tried other videos but it does this to any video spanning over 1 hour encoding to 1080p. Going up to 720p works fine but up to 1080p causes this.