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• ffmpeg cut first 5 seconds

  25 mai 2015, par requiem31

  I am having trouble removing the first 5 seconds of a .mp4 video. Here is what I have so far :

  subprocess.call("ffmpeg -ss 00:00:00 -t 00:00:05 -i /home/requiem/Desktop/t1.mp4 -vcodec copy -acodec copy /home/requiem/Desktop/t2.mp4", shell=True)

  The issue is that it just takes the first 5 second and saves it, but I want the first 5 seconds removed and the rest saved. How would I do that, or can I find the duration of the video so I can set -ss 00:00:05 and -t DURATION

• "FFmpeg was not found, spotdl can't continue" even though its installed using sudo apt-get install spotdl + it works if ran from terminal

  23 juin 2022, par dank rainbow

  @bot.command()
async def getsong(ctx, *, songname):
    "get song in mp3 from song name"
    os.popen(f'spotdl {songname} -f "/home/pi/discordbot/output/{songname}.mp3"')
    await ctx.send(file=discord.File(fr'/home/pi/discordbot/output/{songname}.mp3'))


  


  ffmpeg installed with sudo-apt get. works if ran from terminal
how to fix ?

  


  figured it out my self.
working code if it benefits anyone :

  


  @bot.command()
async def getsong(ctx, *, songname):
    "get song in mp3 from song name"
    subprocess.Popen(f'spotdl -o "/home/pi/discordbot/output" --ffmpeg "/usr/bin/ffmpeg" {songname} --path-template "{songname}.mp3"', shell=True)
    await ctx.send(file=discord.File(fr'/home/pi/discordbot/output/{songname}.mp3'))


  


• How can I automatically embed commit information into a subtitles file that I'm tracking ?

  23 février 2015, par microspace

  I use git to track *.ass subtitle files.
  Here is example of *.ass file :

  [Script Info]
  
  ; Script generated by Aegisub 3.1.2
  
  ; http://www.aegisub.org/
  
  Title: Default Aegisub file
  
  ScriptType: v4.00+
  
  
  
  [V4+ Styles]
  
  Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour,    BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
  
  Style: Default,Arial,20,&H00FFFFFF,&H000000FF,&H00000000,&H00000000,0,0,0,0,100,100,0,0,1,2,2,2,10,10,10,1
  
  Style: titr,DejaVu     
  
  
  
  Sans,20,&H007DDBFA,&H000000FF,&H00000000,&HFF000000,0,0,0,0,100,100,0,0,1,2,2,1,10,10,10,1
  
  
  
  [Events]
  
  Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
  
  Dialogue: 0,0:00:00.46,0:00:11.22,Default,,0,0,0,,Если это можно было бы
  
  Dialogue: 0,0:00:03.44,0:00:08.96,titr,,0,0,0,,{\pos(20,240)\fad(600,600)}бывший министр

  After commit I burn subtitles into video :

  ffmpeg -i video.avi -vf "ass=subtitle.ass" out.avi

  My goal is to show commit date for 10 second at the start of movie. This should be done automatically.

  1) It can be easily done with by modifying subtitle.ass itself, but I can’t do it after commit and there are other reasons.

  2) It can be done by ffmpeg from command line : How to use ffmpeg to add a text to avi video ?

  Problem is that in this case text will be shown for the whole lenght of movie.

  3) I can copy *.ass file to temporary directory, insert date, render and delete *.ass file.

  Is there a simpler way ?