"Seek" not working, likely due to duration being detected improperly

[PiyushAgarwal]

Hi Cameron,

Did you make sure to set your pipeline to a Paused state? In the ready state
the QueryDuration returns -1 for me as well, but if I do it after the Paused
state it works fine.

The best place to query it is also when the AsyncDone message is received on
the pipeline message bus:


                pipeline.Bus.Message += delegate(object bus, MessageArgs
margs)
                {
                    Gst.Message message = margs.Message;

                    switch (message.Type)
                    {
                        case MessageType.AsyncDone:

                            pipeline.QueryPosition(Format.Time, out
currentTime);
                            commandList.Enqueue("current_position;" +
currentTime / 1000000000.0);

                            pipeline.QueryDuration(Format.Time, out
duration);
                            commandList.Enqueue("duration;" + duration /
1000000000.0);

                            State state, pending;
                            pipeline.GetState(out state, out pending, 60 *
5L);

                            break;
                      }
                   }
              };

For seeking you could do something like:

        public static bool Seek(long seekPosition)
        {
            return pipeline.SeekSimple(Format.Time, SeekFlags.Flush |
SeekFlags.Accurate, seekPosition);
        }


Hope that helps!
Piyush




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