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• Download HLS (m3u8) file with all audio, video tracks and subtitles [closed]

  24 juillet 2024, par Eric Nebe

  It is pretty easy to download a m3u8 file and convert it to mp4 format with Ffmpeg tool, but is there a way to download the complete HLS content with all audio & video tracks as well as subtitles and store it in a single file ?

  


  I've been researching days for that information but couldn't find anything, all articles are aimed to show how to download a single audio and video track to a mp4/ts files

  


  Thank you everyone in advance

  


  I tried and managed to download the m3u8 file into mp4/ts only :

  


  ffmpeg -y -loglevel verbose -i "http://exampleurl.com/file.m3u8" -c copy -f mpegts output.mp4

  


• avformat/matroskaenc : Fix edge case of writing Cues at the beginning

  28 décembre 2019, par Andreas Rheinhardt

  avformat/matroskaenc : Fix edge case of writing Cues at the beginning
  The Matroska muxer has the ability to write the Cues (the index) at the
  
  beginning of the file (in front of the Cluster) : The user inputs the
  
  amount of space that should be reserved at the beginning of the file and
  
  if this is sufficient, the Cues will be written there and the part of the
  
  reserved space not used up by the Cues will be filled with a "Void"
  
  element.
  There is just one problem with this : One can not fill a single byte this
  
  way, because said Void element is minimally two bytes long (one byte ID,
  
  one byte length field). Up until now, if one reserved one byte more than
  
  needed, one would run into an assert when writing the Void element.
  There are two solutions for this : Error out if it happens. Or adjust the
  
  length field of the Cues in order to ensure that the above situation
  
  can't happen (i.e. write the length on one byte more than necessary).
  
  The first solution is very unsatisfactory, as enough space has been
  
  reserved. Therefore this commit implements the second solution.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/matroskaenc.c

• audio dynamic range compression in php

  28 mai 2020, par monu214

  Is this possible to dynamic audio range compression in PHP. There is a lot of confusion between compression of audio, what I mean of audio compression here is described in this article.

  



  Some posts I saw here about the audio compression which only converts the audio format from wav to mp3 or other formats using FFmpeg, but what I want here is to change some audio settings like threshold, compression ratio, attack time, release time which is basic settings that can be used in audio compression.

  



  Is there any way I can do this in server-side using PHP ?