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• vp9_metadata : Improve spec-compliance and warnings

  9 juillet 2019, par Andreas Rheinhardt

  vp9_metadata : Improve spec-compliance and warnings
  The earlier version had three deficits :
  
  1. It allowed to set the stream to RGB although this is not allowed when
  
  the profile is 0 or 2.
  
  2. If it set the stream to RGB, then it did not automatically set the
  
  range to full range ; the result was that one got a warning every time a
  
  frame with color_config element was processed if the frame originally
  
  had TV range and the user didn't explicitly choose PC range. Now one
  
  gets only one warning in such a situation.
  
  3. Intra-only frames in profile 0 are automatically BT.601, but if the
  
  user wished another color space, he was not informed about his wishes
  
  being unfulfillable.
  The commit also improves the documentation about this.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] doc/bitstream_filters.texi
  • [DH] libavcodec/vp9_metadata_bsf.c

• automatic generate list ffmpeg trimming video files [duplicate]

  20 mai 2019, par Don

  This question already has an answer here :

  • How do you convert an entire directory with ffmpeg ?
    
    15 answers
    

  May I ask if there is an automatic way to input all the mp4 file names in the ffmpge code ? I have about 60 small video files that I need to trim, it is a pain if I have to keep entering individual file name. the mylist.txt generate only works with when concat

• How to load a custom java module into Wowza Streaming Engine ?

  27 octobre 2018, par kw3rti

  I’ve followed the tutorial below step by step, however, the module I’ve created does not appear to load or execute, as I’m not seeing any log entries relating to the getLogger calls in the Wowza Streaming Engine. More specifically, I have created a new Wowza project containing a new module (see code below). Eclipse has then created a jar file in the lib folder of the install directory. I have added the module to a live application on the streaming server. I have also edited the Application.xml file to include the new module.

  To hopefully run the module I’ve written, I am streaming an mp4 file using ffmpeg (according to documentation here) to the streaming engine (via the live application), which I can see in the test players. My understanding was that this would trigger at least one of the event listeners in the module. However, nothing appears to come up in the logs. The only entries related to the stream that I can see are shown below.

  I’ve been trying to debug what’s going wrong for quite a while now, so I’d appreciate any suggestions of what might fix the issue.

  https://www.wowza.com/docs/How-to-extend-Wowza-Streaming-Engine-using-Java

  public class GCStreamModule extends ModuleBase {
  
  
  
      public void onAppStart(IApplicationInstance appInstance) {
  
          String fullname = appInstance.getApplication().getName() + "/" + appInstance.getName();
  
          getLogger().info("onAppStart: " + fullname);
  
      }
  
  
  
      public void onAppStop(IApplicationInstance appInstance) {
  
          String fullname = appInstance.getApplication().getName() + "/" + appInstance.getName();
  
          getLogger().info("onAppStop: " + fullname);
  
      }
  
  
  
      public void onConnect(IClient client, RequestFunction function, AMFDataList params) {
  
          getLogger().info("onConnect: " + client.getClientId());
  
      }
  
  
  
      public void onConnectAccept(IClient client) {
  
          getLogger().info("onConnectAccept: " + client.getClientId());
  
      }
  
  
  
      public void onConnectReject(IClient client) {
  
          getLogger().info("onConnectReject: " + client.getClientId());
  
      }
  
  
  
      public void onDisconnect(IClient client) {
  
         getLogger().info("onDisconnect: " + client.getClientId());
  
      }
  
  
  
      public void onStreamCreate(IMediaStream stream) {
  
          getLogger().info("onStreamConnect");
  
      }
  
  
  
      public void onMediaStreamCreate(IMediaStream stream){
  
          getLogger().info("onMediaStreamCreate: " + stream.getSrc());
  
      }
  
  
  
  }