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• Revision 73755 : Amélioration de la gestion des samplerates

  20 juin 2013, par kent1@… — Log

  Amélioration de la gestion des samplerates

• FFMPEG - How to separate a 10-channel WAV to separate files per-channel ? (Not 5.1)

  24 août 2021, par burntscarr

  So everywhere I looked for an answer to split a multichannel wav, I found so many that specify mapping which I have not the slightest clue of because all the ones represented were either 5.1 layout ([FL][FR][C][LFE][SL][SR]) or gibberish mapping code that I couldn't understand.

  


  The specific wav is 10 channels, and I want to compress it to FLAC in the end as well. I tried just converting it to FLAC and keeping the channel arrangement, but 8 channels is the maximum for FLAC.

  


  When learning mapping, I see -filter_complex "channelsplit=channel_layout= and I don't know what to put after = because it is not 5.1 and naming the files based on channels is what I'm after.

  


  input 10ch.wav output 1.flac 2.flac etc to 10.flac

  


• Gstreamer basic tutorial gives blank screen

  11 novembre 2013, par user763410

  I have the following gstreamer basic tutorial. When I compile and run the program, I am only getting a blank screen. The same happens when I use mplayer, but I supply -vo x11 option to it and it works well(for mplayer). So, I am guessing the issue gstreamer is also the same. So, my question is..."What should I do to tell the program that my output driver is x11 ?" How do I get rid of the blank screen ?

  Thanks

  #include <gst></gst>gst.h>
  
  
  
  int main(int argc, char *argv[]) {
  
    GstElement *pipeline;
  
    GstBus *bus;
  
    GstMessage *msg;
  
  
  
    /* Initialize GStreamer */
  
    gst_init (&amp;argc, &amp;argv);
  
  
  
    /* Build the pipeline */
  
    /*
  
      pipeline = gst_parse_launch ("playbin2 uri=http://docs.gstreamer.com/media/sintel_trailer-480p.webm", NULL);
  
    */
  
      pipeline = gst_parse_launch ("playbin2 uri=file:///home/mylogin/gstreamerstuff/sintel_trailer-480p.webm", NULL);
  
  
  
    /* Start playing */
  
    gst_element_set_state (pipeline, GST_STATE_PLAYING);
  
  
  
    /* Wait until error or EOS */
  
    bus = gst_element_get_bus (pipeline);
  
    msg = gst_bus_timed_pop_filtered (bus, GST_CLOCK_TIME_NONE, GST_MESSAGE_ERROR | GST_MESSAGE_EOS);
  
  
  
    /* Free resources */
  
    if (msg != NULL)
  
      gst_message_unref (msg);
  
    gst_object_unref (bus);
  
    gst_element_set_state (pipeline, GST_STATE_NULL);
  
    gst_object_unref (pipeline);
  
    return 0;
  
  }