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showcasefloyd
Participant
January 30, 2008
Question

Trouble shooting drop outs when publishing a stream

  • January 30, 2008
  • 3 replies
  • 878 views
So I'm not exactly sure why it is happening, but when I record a stream over my network to the FMS on some occasions the stream pauses and then resumes, sometimes as much a second or two later. I've set the buffer on the client side to 13 which I have no idea is helping or hurting. I've tried setting the buffer to 30 on the server side. I have no idea if this is helping either.

So I would love any advice on the best ways to look and see if it's a buffer issue or not.

Please help.

Floyd
    This topic has been closed for replies.

    3 replies

    Graeme Bull
    Community Expert
    Graeme BullCommunity Expert
    Community Expert
    January 31, 2008
    When recording, don't set the buffer to see what happens. I think you may be right in that the flash player is buffering 13 seconds worth, sending it all and then getting back to recording. So that pause is the "sending time" maybe.
    Graeme Bull
    Community Expert
    Graeme BullCommunity Expert
    Community Expert
    January 31, 2008
    I don't think the FLV is getting recorded with a pause in it, but the dropped frames are most likely because the bandwidth is too low for the stream that you are trying to record. Reduce the framerate or size or quality on the recording stream and try again. What settings do you have it at now?

    I would view the FLV offline to see if that pause is in there. If not, then you know it's a network issue.
    S
    showcasefloydAuthor
    Participant
    January 31, 2008
    Well I followed your advice and watched the FLV offline and indeed there are pauses in it. Could it be possible that these are caused by having a buffer that's too high? It seems like the thing freezes while it's waiting for more data to fill up it's buffer and that's why it pauses?

    As far as my settings. When I'm publishing:

    For the video I use myCamera(32768,0) and for audio I use myRate(22);

    For my buffer I have it set to 13.

    Just so you know this is on a very fast, internal network. The app I'm building is to be used in a college class.

    Thanks in advance,

    Showcasefloyd
    Graeme Bull
    Community Expert
    Graeme BullCommunity Expert
    Community Expert
    January 30, 2008
    For recording you generally don't need to set a buffer time unless you are concerned that the user doesn't have enough bandwidth to send the data to the server without losing quality or framerate. There shouldn't be any pausing going on either way. When do you see this pausing? on playback?
    S
    showcasefloydAuthor
    Participant
    January 30, 2008
    Yes, it seems to be when your playing back a recording. My application is set up so that users with a web cam, can save video clips of themselves to the FMS and then play them back. What seems to happen is that for no reason the playback will just pause and then start playing again. I've also seen it sometimes skip or drop frames as wel during playbacl. I assume this is all the same problem.

    How does one try and trouble shoot something like this. Could if be a problem with how the server is configured?

    Are there recommendations for this type of stuff?

    Philip
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