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• Merge commit ’fc27e7272e6f1a7053812f8a15b1b7098de44c71’

  22 juillet 2014, par Michael Niedermayer

  Merge commit ’fc27e7272e6f1a7053812f8a15b1b7098de44c71’
  * commit ’fc27e7272e6f1a7053812f8a15b1b7098de44c71’ :
  
    mpegts : do not export empty language tags
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavformat/mpegts.c

• How can i write a tool that acquires video/audio from my input video card ? [on hold]

  21 juillet 2014, par user3180895

  i’d like to write a simple program that can read audio and video from my input card and can save it in a file.

  I’d like to write it in Java, but if it is not possible, i can change language.
  I tried to use ffmpeg, but my device has crossbar limitations.

  My question is :

  Exists one library which can read input buffer from my device and save it in a file ?

  Can someone post a "Hello World" code for a simple example ?

  Thanks a lot.

  P.S. I am actual working with Windows.

• how to reencode with ffmpeg (with limited x264)

  26 mai 2012, par sarfraz

  Until now I used this script to reencode my rips for my box (tv decoder) :

  ^_^ ( ~ ) -> cat ~/++/src/convert.sh 
  
  #! /bin/bash
  
  
  
  name=$(path -r "$1") # it gives the file name without the extension
  
  
  
  [ "$1" = *.mp4 ] && ffmpeg -i "$name".mp4 -vcodec copy -acodec copy "$name".mkv
  
  x264 --preset veryfast --tune animation --crf 18 --vf resize:720,576,16:15 -o "$name".tmp.mkv "$name".mkv
  
  mkvmerge -o "$name [freeplayer sd]".mkv "$name".tmp.mkv --no-video "$1"
  
  rm -rf "$name".tmp.mkv
  
  [ "$1" = *.mp4 ] && rm -rf "$name".mkv
  
  exit 0
  
  
  
  #EOF

  It works on my ubuntu and archlinux laptops. But it doesn’t on my desktop witch runs fedora.
  Google says that the x264 package shiped by rpmfusion doesn,t support lavf and ffms2.
  And I cannot unistall it because smplayer (witch i like) needs it.

  Ok, so I have to compile it. Google then says "you have to build ffmpeg, ffms2 tnen x264 ensuring that the flags are correctly refered." Well, didn’t work (ffms2 cannot find LIBAV - even when I am telling where - and x264 does’t configure with lavf...)

  My question is : can I use ffmpeg alone to do what my script does.
  I have ffmpeg version 0.8.11, x264 0.116.2048 59cb2eb and gcc : 4.6.1 20110804 (Red Hat 4.6.1-7)

  Any hint wound be appreciated.

  EDIT : Ok, I found that : ffmpeg -i input file -acodec copy -vcodec libx264 -preset veryfast -tune animation [that part I don’t have] output

  PS : english is not my native, plz forgive any spelling fault.