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• ffmpeg with double ethernet interfaces works wrong

  21 janvier 2019, par CharlesCui

  A server with double interfaces.

  1. One(eht0) is used for WAN which provides http/ssh services for internet users.

  2. The other(eth1) is used to receive multicast data from intranet.

  218.108.132.177 is public network gateway.

  125.210.198.1 is private network gateway.

  233.49.3.*/24 is multicast address.

  10.0.11.*/24 is the source of multicast data.

  When the route table is like below, ffmpeg can’t read the udp data from eth1, ffmpeg hung up :

  rrca@rcasnap02:~$ route
  
  Kernel IP routing table
  
  Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
  
  218.108.132.176 *               255.255.255.252 U     0      0        0 eth0
  
  125.210.198.0   *               255.255.255.240 U     0      0        0 eth1
  
  default         218.108.132.177 0.0.0.0         UG    100    0        0 eth0
  
  default         125.210.198.1   0.0.0.0         UG    100    0        0 eth1

  or

  rrca@rcasnap02:~$ route
  
  Kernel IP routing table
  
  Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
  
  218.108.132.176 *               255.255.255.252 U     0      0        0 eth0
  
  125.210.198.0   *               255.255.255.240 U     0      0        0 eth1
  
  default         218.108.132.177 0.0.0.0         UG    100    0        0 eth0
  
  10.0.11.0       125.210.198.1   0.0.0.0         UG    100    0        0 eth1

  or

  rrca@rcasnap02:~$ route
  
  Kernel IP routing table
  
  Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
  
  218.108.132.176 *               255.255.255.252 U     0      0        0 eth0
  
  125.210.198.0   *               255.255.255.240 U     0      0        0 eth1
  
  default         218.108.132.177 0.0.0.0         UG    100    0        0 eth0
  
  233.49.3.0      125.210.198.1   255.255.255.0   UG    100    0        0 eth1

  I want to the ffmpeg work right,but now I think the two default route in route table disturb eachother, and I take a try, when the public gateway route is deleted, or the private gateway route is at the head of public default gateway route, ffmpeg works well, I think it read multicast from eth1.But the route table is not thus, ffmpeg can’t read data from eth1, I think it read data on eth0(which is not private network interface).

  How to do ffmpeg works well with two interfaces at the same time ?

• Code runs when in a main method but not when in another method

  8 août 2018, par Zubair Ahmed

  I created the setArtwork method to set the artwork of an aac file in an .m4a container and it does exactly what I want it to when I run the main method

  public static void setArtwork(File art, File m4a) throws Exception{
  
      Mp4TagReader reader = new Mp4TagReader();
  
      Mp4TagWriter writer = new Mp4TagWriter();
  
      RandomAccessFile song = new RandomAccessFile(m4a.toString(),"rw");
  
      Mp4Tag mp4tag = reader.read(song);
  
  
  
      Artwork artwork = ArtworkFactory.createArtworkFromFile(art);
  
      mp4tag.addField(artwork);
  
      mp4tag.setField(artwork);
  
  
  
      RandomAccessFile temp = new RandomAccessFile(m4a,"rw");
  
      writer.write(mp4tag,song,temp);
  
  }
  
  public static void main(String[] args) throws Exception{
  
      File art = new File("C:\\Users\\Zubair\\Documents\\music\\coverArt.jpeg");
  
      File m4a = new File("C:\\Users\\Zubair\\Documents\\music\\song.m4a");
  
      setArtwork(art,m4a);
  
  }

  BUT, when I try to use the setArtwork method in a different method in a different class it doesn’t actually save the mp4 tag to the File. I did some debugging to see if the picture was even being added to the artwork tag and it all looks good, but it seems that the tag doesn’t get written to the file.

  public static void mp3Tom4a(File mp3File, File m4aFolder, File coverArt) throws Exception {
  
      String input = mp3File.toString();
  
      String name = mp3File.getName();
  
  
  
      String output = name.substring(0,name.indexOf(MP3)) + M4A;
  
      output = m4aFolder.toString() + "\\" + output;
  
  
  
      //cd ffmpeg\bin && ffmpeg -y -i input.mp3 -an -vcodec copy cover.jpg && ffmpeg -y -i input.mp3 -c:a aac -b:a 192k -vn output.m4a
  
      ProcessBuilder builder = new ProcessBuilder(
  
              "cmd.exe","/c","cd ffmpeg\\bin && ffmpeg -y -i "
  
              + input +" -an -vcodec copy "+coverArt+
  
              " && ffmpeg -y -i " + input + " -c:a aac -b:a 128k -vn " + output);
  
      builder.redirectErrorStream(true);
  
      builder.start();
  
      JAudioData.setArtwork(coverArt,new File(output));
  
  }
  
  public static void main(String[] args) throws Exception {
  
      mp3Tom4a(new File("C:\\Users\\Zubair\\Documents\\music\\song.mp3"),
  
              new File("C:\\Users\\Zubair\\Documents\\music"),
  
              new File("C:\\Users\\Zubair\\Documents\\music\\coverArt.jpeg"));
  
  }

  it doesn’t make sense that setArtwork only works when it’s in the main method of its own class, especially because the objects I am using for the parameters are identical to eachother, so there should be no difference in the result. I think it might have something to do with the RandomAccessFile object being updated but the physical storage not getting updated

  Edit- If I comment out builder.start() then it can successfully write the mp4tag to the m4a file. But I don’t see why having builder.start() would prevent that from happenning. My best guess is that because builder.start() is what creates song.m4a it is still being "edited" by that and can’t be edited by any other processes.

• fate : fix hapqa-extract-nosnappy tests on small builds

  7 septembre 2018, par James Almer

  fate : fix hapqa-extract-nosnappy tests on small builds
  Fixes ticket #7324
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] tests/fate/hap.mak
  • [DH] tests/ref/fate/hapqa-extract-nosnappy-to-hapalphaonly-mov
  • [DH] tests/ref/fate/hapqa-extract-nosnappy-to-hapq-mov