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• FFMPEG : Add timestamp to file name HLS

  7 mai 2020, par Neel Dutta

  I want to add timestamp to my file name in the following ffmpeg command (in nginx rtmp) :

  



  exec ffmpeg -i rtmp://localhost:1936/stream/$name 
                -c:v libx264 -b:v 2500k -g 30 -r 30 -s 1280x720 -vf "drawtext=fontfile=/usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Bold.ttf: text=%{localtime}: fontsize=30: fontcolor=white@0.8: x=10: y=h-th-10" -preset fast -profile:v baseline -hls_list_size 0 -f hls /network_drive/$name-$date_%d-%b-%y-%H-%M-%S.m3u8
                -ss 00:00:05.000 -vframes 1 /network_drive/$name.jpg;


  



  What i want to achieve is the an .m3u8 file, with a filename of e.g : "stream_name-01-Apr-2020-10-46-45.m3u8", followed by its .ts files e.g : "stream_name-01-Apr-2020-10-46-450.ts, stream_name-01-Apr-2020-10-46-451.ts, stream_name-01-Apr-2020-10-46-452.ts", and so on.

  



  But the above command doesnt seem to work, and results in filename "stream_name-%d-%b-%y-%H-%M-%S.m3u8".
I've tried using strftime, but had no luck.

  


• FFMpeg slide text from right to left an leave from left to right after x seconds

  13 août 2018, par Marco van 't Klooster

  I’m trying to slide a text inside my video from right to left and leaving the video after 13 seconds.
  The text has to stay there for 13 seconds and the leave in the opposite direction the video.

  Right now I’m using the following command :
  ffmpeg -i Pool\ scores.m4v -vf "[in]drawtext=fontfile=/usr/share/fonts/truetype/msttcorefonts/Arial.ttf:fontsize=40:fontcolor=white:x=900:y=570:text='Marco':enable='between(t,11,24)' [out]" -c:v libx264 scrolling.m4v

  So the text Marco have to be at x=900 and y=570. Thats also the coordinate where the text have to leave from.

  The idea is to create a pool score board where the video is auto generated with dynamic text. In this image there is an example of what the animation have to look like. I’ve to retime it tom match the same speed.
  See example

  Thanks in advance !!

• Using inotifywait with a FIFO

  2 mai 2019, par diatrevolo

  I am using inotifywait to watch a folder and run a video transcode when a file is done copying or moved into a share folder from within an Ubuntu Docker container. It seems to work, but occasionally it stops responding and seems to ignore files from that point on. Seeing as this is my first time using mkfifo, and inotifywait, from the script below, is there anything that looks odd that someone could point out ? Thanks !

  #!/bin/bash
  
  mkfifo video_pipe
  
  
  
  inotifywait -m /media/transcode_inbox -e close_write -e moved_to | while read path action file
  
  do
  
    echo "$file" >> video_pipe
  
  done &
  
  
  
  while read file 
  
  do
  
      mv /media/$file /media/originals/
  
      ffmpeg -nostdin -i /media/originals/$file -c:v hap -format hap_q media/hap_q/$file &
  
  done < video_pipe