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Participating Frequently
December 12, 2016
Answered

inconsistent black screen video preview

  • December 12, 2016
  • 1 reply
  • 609 views

I recently posted my first attempt at replacing Flash (FlowPlayer) audio/video streaming with HTML5 streaming audio/video. Here is that page:

http://www.jamlab.us/JL_DC.htm

I have inconsistent previews of the various videos. Most are working normally, however some simply have a black screen as the preview. What is the source of this inconsistency? How do I correct this such at every video has a proper preview, any preview relevant but just not a total black image?

Thanks,

Kurt

    This topic has been closed for replies.
    Correct answer Jax24135

    Looks like the thumbnail just pulls the first frame of video - in some cases its a black frame.

    You could modify the HTML code to show a specific poster image instead of the first frame of video to gain more control.

    HTML video poster Attribute

    1 reply

    Jax24135
    Jax24135Correct answer
    Inspiring
    December 12, 2016

    Looks like the thumbnail just pulls the first frame of video - in some cases its a black frame.

    You could modify the HTML code to show a specific poster image instead of the first frame of video to gain more control.

    HTML video poster Attribute

    SwainGISAuthor
    Participating Frequently
    December 12, 2016

    Great news! thanks. I would love to see the complete list of Attributes to learn what other tricks I may use. It was confusing that coding a title for the video was a waste of time. Using the HTML "title" it is never utilized. I don't understand why that is. I took all those references out of the code since they had no effect on what is rendered.

    I'll give the Attribute a try and see if it works.

    Regards,

    Kurt

    Jax24135
    Inspiring
    December 12, 2016

    Not all that familiar with it, but "title" might be geared towards HTML accessibility (similar to 'alt text').