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• is there a good library out there that will split a mp3 with php

  24 janvier 2012, par Tamer

  So i have an application takes a uploaded song and allows the user to purchase it. I would like to also create a 30 second clip that the user can preview, but rather then having the user upload two files I want the application to create the 30 second mp3 file based on the original mp3. I found this library which i am using like this

      $oSplit=new CMP3Split(DIR_DOWNLOAD ."Made_To_Love.mp3",243,DIR_DOWNLOAD ."clips/{$rndString}.mp3",30,0);

  but it seems to not always produce a 30 second clip

  and i also found this question which is using ffmpeg which i dont know how to use in a php setting.

  Any ideas or suggestions

• Joining and cutting mpeg 2 video files

  4 janvier 2012, par D.Rosado

  I have multiple mpeg2 video files. What I need to do is get a clip of video that is contained in several of these mpeg2 videos. What I'm doing at the moment is :

  • Join them using the command :

        copy /b file1.mpg + ... + fileN.mpg output.mpg

  • The ouput.mpg duration is wrong so I'm using FFMpeg to fix that :

        ffmpeg -y -i output.mpeg -target pal-dvd outputFixed.mpg

  The problem is when I try to extract only one portion of this output.mpg, at the same time I "fix" it, with the -ss and -t FFMpeg commands becouse the video duration is wrong as i said.

  So the question is :

  • Is there any way to combine Mpeg2 files without getting the duration wrong ?
  • Is there any way to fix the duration of a Mpeg2 file and extract one portion at the same time ?

  Any suggestion would be appreciated.

• FFMPEG h264 grey frame and artifacts at beginning

  28 novembre 2011, par marce002

  I'm splitting my "zi6 quicktime mov" hd videos, I have 250 clips of around 10 or 15 seconds each, from lot of places, locationes around the globe and want to combine them in a single big clip.

  I can merge them very good with "mkvmerge".

  The problem is that the first frames of all videos in the collection (splitted with ffmpeg), are gray or with artifacts at beggining, I do not know how to explain, maybe wrong ffmpeg commands, I'm doing this (with batch command line, which is great / fast for me) :

  =======begin of batch file

  ffmpeg -i jockey_club_fpv.mov -ss 00:00:17 -t 00:00:24 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3a.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:04:40 -t 00:00:20 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3b.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:05:35 -t 00:01:00 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3c.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:07:11 -t 00:00:10 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3d.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:07:45 -t 00:00:21 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3e.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:08:47 -t 00:00:05 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3f.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:09:18 -t 00:00:10 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3g.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:09:35 -t 00:00:09 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3h.mov
  
  ffmpeg -i jockey_club_fpv.mov -ss 00:10:07 -t 00:00:16 -g 1 -sameq -vcodec copy -vf fade=in:0:30 partes3i.mov
  
  mkvmerge -o join4.mov partes3a.mov + partes3b.mov + partes3c.mov + partes3d.mov + partes3e.mov + partes3f.mov + partes3g.mov + partes3h.mov + partes3i.mov

  =======end of batch file

  Thanks a lot for any answer !!