Skip to main content
JCCyC
Participant
August 6, 2008
Question

Ever-increasing delay between video in browser and source signal

  • August 6, 2008
  • 2 replies
  • 444 views
Here's my setup:

Capturing machine: Acer 5570Z laptop with 1.6 GHz CPU, 2 GB RAM, Win XP SP3, FME 2.5.0.2086, Pinnacle USB capture device. Tested both with S/Video and antenna input.

Media server: FMS 3.0.2 r217 for Linux, Intel Core 2, 2 GB RAM.

FME CPU usage fluctuates between 25% and 50%. FMS CPU usage is less than 1%.

I created a dumb flash page with Flash CS3 as per the instructions in this tutorial.

What happens: everything works, except the delay between what I see in the browser and what I see in the FME panel slowly increases, from 2-3 seconds in the beginning to 15-20 seconds half an hour later. I see a slow increase of memory usage by the browser while that happens. This happens regardless of codec, resolution, bitrate, etc.

I work for a major Brazilian TV broadcaster and we need this working for Web streaming of live shows.

Any clues?
    This topic is closed to new replies. Start a new post to keep the conversation going.

    2 replies

    Adobe Employee
    kc2cheng
    Adobe Employee
    August 6, 2008
    When this problem happens, do you only see the delay in the browser who has been subscribing for a while? Do you see the same delay when you start a fresh subscriber? And I think it is good to know which version of FME you are using. I remember there is a similar problem in an older version of FME.
    JCCyCAuthor
    Participant
    August 6, 2008
    Yes, it only happens when I've been viewing video for a while. Any new browser session starts with a reasonable delay (1 to 3 seconds). FME is 2.5.0.2086 according to its About box, but I think my answer to your first question means it's not a FME problem. Probably not even a FMS problem, but rather a Flash browser plugin problem.

    I did all my tests with Flash plugin 9.0 r124, both in IE and in Firefox, with the same results.

    Oh, and another thing: the audio never goes out of sync. It's always exactly as delayed as the video.

    EDIT: I used both 29.97 and 24 fps with same results.
    Terms & ConditionsAccessibility statement
    Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices