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• Incorrect frame rate in video (Xuggler + MPEG 4 + H.264)

  12 novembre 2014, par Vladislav Bauer

  I have a problem with incorrect value of frame rate in output file, after converting. I made a really simple example to describe a problem :

  public static void main(String[] args) {
  
      // reader
  
      IMediaReader reader = ToolFactory.makeReader("/tmp/1/i3.avi");
  
      IMediaWriter writer = ToolFactory.makeWriter("/tmp/1/o3.mp4", reader);
  
      reader.addListener(writer);
  
  
  
      while (true) {
  
          try {
  
              final IError error = reader.readPacket();
  
              if(error != null) {
  
                  System.err.println("Error decoding packet " + error.getDescription());
  
  
  
                  if (!reader.isOpen()) {
  
                      break;
  
                  }
  
              }
  
          } catch (final Exception ex) {
  
              System.err.println("Error decoding packet " + ex.getMessage());
  
              if (!reader.isOpen()) {
  
                  break;
  
              }
  
          }
  
      }
  
  }

  Any additional parameters for video or audio streams/codecs aren’t configured .

  The input video file ("/tmp/1/i3.avi") has the following features :

  • General
    • Container : Audio Video Interleave (AVI)
  • Video
    • Dimensions : 624x352
    • Codec : XVID MPEG-4
    • Framerate : 24 frames per second
    • Bitrate : N/A
  • Audio :
    • Codec : MPEG-1 Layer 3 (MP3)
    • Channels : Stereo
    • Sample rate : 48000 Hz
    • Bitrate : 112 kbps

  The output video file ("/tmp/1/o3.avi") has the following features :

  • General
    • Container : Quicktime
  • Video
    • Dimensions : 624x352
    • Codec : H.264
    • Framerate : 8 frames per second
    • Bitrate : 378 kbps
  • Audio :
    • Codec : MPEG-4 AAC
    • Channels : Stereo
    • Sample rate : 48000 Hz
    • Bitrate : 127 kbps

  So, the frame rate in output file is 8 instead of 24. How can I fix it ? Please, help me..

  PS : I’ve already tried Xuggler H264 FPS encoding issue and few another solutions, it doesn’t help..

  ---

  UPD : After a long war with Xugler I wrote my own pure-java interface to the avconv and it works fine for me : https://github.com/vbauer/avconv4java

• Fixing a TS file made by the HD Home Run

  2 mars 2015, par clive alton

  I am recording from a cable stream using the hdhomerun command line tool, hdhomerun_config, to a .ts file. The way it works is that you run the command, it produces periods every second or so to let you know that the stream is being successfully recorded. So when I record, it produces only periods, which is desired. And the way to end it is by doing a Ctrl-C. However, whenever I try to convert this to an avi or a mov using FFMpeg, it gives a bunch of errors, some of which being

  [mpeg2video @ 0x7fbb4401a000] Invalid frame dimensions 0x0
  
  [mpegts @ 0x7fbb44819600] PES packet size mismatch
  
  [ac3 @ 0x7fbb44015c00] incomplete frame

  It still creates the file, but it is bad quality and it doesn’t work with OpenCV and other services. Has anyone else encountered this problem ? Does anyone have any knowledge that may help with this situation ? I tried to trim the ts file but most things require conversion before editing. Thank you !

• Merge commit ’e878ec0d47cd6228c367b2f3128b76d7523f7255’

  3 mars 2015, par Michael Niedermayer

  Merge commit ’e878ec0d47cd6228c367b2f3128b76d7523f7255’
  * commit ’e878ec0d47cd6228c367b2f3128b76d7523f7255’ :
  
    aic : Fix decoding files with odd dimensions
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/aic.c