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• avcodec/ttmlenc : add support for region positioning and sizing

  29 mars 2021, par Jan Ekström

  avcodec/ttmlenc : add support for region positioning and sizing
  The ASS margins are utilized to generate percentual values, as
  
  the usage of cell-based sizing and offsetting seems to be not too
  
  well supported by renderers.
  Signed-off-by : Jan Ekström <jan.ekstrom@24i.com>
  

  • [DH] libavcodec/ttmlenc.c
  • [DH] tests/ref/fate/sub-ttmlenc

• FFMPEG draw text with change over time [duplicate]

  18 avril 2020, par bleepbloopbleep

  Hi i am working on a project that will get metadata from an mp3 file and then stream the file with text displaying the Artist Name and Song Title from the metadata.

  



  In order to get around a bug I concatenated the audio files into one larger file and got the meta data from each track before the concatenation.

  



  While streaming I want to display the artist name and song title while the track is playing.

  



  The current text script for just the text looks like this :

  



  drawtext=text='Artist: ARTISTNAME:fontfile=PATH/TO/FONT/FILE:fontsize=(w * 0.03333333333333333):bordercolor=#000000:borderw=1:fontcolor=#FFFFFF:y=(h * 0.15):x=(w * 0.02),drawtext=text='Song: NAME’OFSONG:fontfile=PATH/TO/FONT/FILE:fontsize=(w * 0.03333333333333333):bordercolor=#000000:borderw=1:fontcolor=#FFFFFF:y=(h * 0.25):x=(w * 0.02)"


  



  How can I add time duration element to the FFMEG script ?

  



  Thanks !

  


• PowerShell script to Embed Album art in MP3 files - issues with accelerated audio files in ffmpeg

  4 mars, par moshe baruchi

  I am trying to embed album art into an MP3 file using a PowerShell script along with the TagLib library. The MP3 file has been speed-boosted using FFmpeg. When I run the script on regular audio files, it works fine, but with the accelerated audio files, the album art is only visible when I open the file in MP3Tag or in VLC. It's not showing up in Windows audio players and definitely not in File Explorer.

  


  PowerShell code

  


  param (
    [string]$audio,
    [string]$picture
)
Add-Type -Path "TagLib-Sharp.dll"
$audioFilePath = $audio
$albumArtPath = $picture
$audioFile = [TagLib.File]::Create($audioFilePath)
$tag = $audioFile.Tag
$newPictures = New-Object System.Collections.Generic.List[TagLib.Picture]
$newPictures.Add((New-Object TagLib.Picture($albumArtPath)))
$tag.Pictures = $newPictures.ToArray()
$audioFile.Save()


  


  Commands in cmd

  


  ffmpeg -i song.mp3 -i cover.jpg -map 0:a -map 1 -c:a copy -c:v mjpeg -metadata:s:vtitle="Album Cover" -metadata:s:v comment="Cover (front)" output_with_cover.mp3
del song.mp3
rename output_with_cover.mp3 song.mp3
powershell -ExecutionPolicy Bypass -File "albumart.ps1" -audio "song.mp3" -picture "picture.jpg"