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• How to add day suffix[st,nd,rd,th] in timestamp's date in ffmpeg command ? [duplicate]

  16 décembre 2019, par Milan Tejani

  This question already has an answer here :

  • How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator) ?
    
    18 answers
    

  I am using this command to add time stamp in video :

  ffmpeg -y -i input.mp4 -vf "drawtext=fontfile=roboto.ttf:fontsize=36:fontcolor=yellow:text='%{pts\:gmtime\:1575526882\:%d %b, %Y %I\\\:%M %p}'" -preset ultrafast -f mp4 output.mp4

  this command generate date & time : 05 Dec, 2019 06:21 AM

  but i want to add day suffix after day in date like this : 05th Dec, 2019 06:21 AM

  //like 1st,2nd,3rd,4th,5th.... etc

  what changes i have to do to achieve this ?

• FFMPEG video editing application. Need time and date stamp burned into video

  11 mai 2022, par Jacob

  I am developing an application for video editing. The main component of this application is to produce a single video file from several video files captured from a camcorder with the time and date stamp displayed on the final rendered video, much like the final product from a security camera. I have figured out, by using FFMPEG, how to burn the date and time into the video with a .SRT file as well as with DrawText like the following :

  


  ffmpeg -y -i video.mp4 -vf “drawtext=fontfile=roboto.ttf:fontsize=12:fontcolor=yellow:text='%{pts\:localtime\:1575526882\:%A, %d, %B %Y %I\\\:%M\\\:%S %p}'" -preset ultrafast -f mp4 output_new.mp4    


  


  I would rather use the DrawText method so the user does not have to wait longer while creating the .SRT files. I am new to FFMPEG and I find their documentation very confusing. I guess I am hoping there is someone out there who has experience with it.

  


  Everything seems to work when I pass in the date created meta data from the video file and drawtext just does its thing. The problem is my application allows for editing of the video. I do this, for lack of better solution, by allowing the user to select beginning and ending frames they do not want, from the UI and then the code simply deletes the frames from the directory where they were split and saved. I then use FFMPEG to iterate through the directory and combine the remaining frames to make a video file.

  


  This approach starts the time and date from the date created metadata ; however, cutting the frames out of the video will make the DT stamp inaccurate, due to the missing frames.

  


  Is there any way to tell FFMPEG to burn in the date and time from date/time retrieved from each individual frame ? I appreciate any advice that you may have.

  


• avformat/hlsenc : increase initial program date time precision

  18 juillet 2020, par Marton Balint

  avformat/hlsenc : increase initial program date time precision
  Also query time only once, not for every variant stream, otherwise variant
  
  streams might get a slightly different initial program date time. And we can
  
  set this unconditionally because HLS_PROGRAM_DATE_TIME flag is checked
  
  elsewhere.
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavformat/hlsenc.c