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Thread: Frame accurate seekingin Wowza 4

  1. #1
    Join Date
    Aug 2015
    Posts
    3

    Default Frame accurate seekingin Wowza 4

    I can't get Wowza 4 to perform frame-accurate seek during RTMP streaming. We had the same issue in Wowza 3.6 and solved it by adding the following properties:

    <Streams>
    <Properties>
    <Property>
    <Name>seekTarget</Name>
    <Value>enhanced</Value>
    </Property>
    </Properties>
    </Streams>

    <MediaReader>
    <Properties>
    <Property>
    <Name>mp4OnSeekUseVideoTimecode</Name>
    <Value>true</Value>
    <Type>Boolean</Type>
    </Property>
    <Property>
    <Name>calculateMoreAccurateFrameSize</Name>
    <Value>true</Value>
    <Type>Boolean</Type>
    </Property>
    </MediaReader>

    But it seems that in Wowza 4 these settings do not work anymore. Should I use another settings to enable accurate seeking in Wowza 4?

  2. #2

    Default

    Did you make sure you re-loaded the application after making the change?

    Salvadore

  3. #3
    Join Date
    Aug 2015
    Posts
    3

    Default

    Quote Originally Posted by salvadore View Post
    Did you make sure you re-loaded the application after making the change?

    Salvadore
    Yes, I did. I can see the an entry in the access log for every frame seek I do in the Video player, but the image is still updated only every 5 to 10 frames (key frames maybe?).
    Do I need to specify additional properties to make it fully working?

  4. #4

    Default

    This property should be all you need.

    Are you testing with the Wowza supplied RTMP example player? This feature is only support with RTMP players. If you have written your own player it may be an issue with the code.

    Regards,

    Salvadore

  5. #5
    Join Date
    Aug 2015
    Posts
    3

    Default

    Indeed we are using our custom flash video player but it works fine with Wowza 3.
    I can't test it with built-in wowza player because it does not expose frame seeking controls.

  6. #6
    Join Date
    Sep 2011
    Posts
    1,920

    Default

    Hi,
    This will now be handled in the created ticket (138733).

    Regards,
    Jason

  7. #7
    Join Date
    Mar 2013
    Posts
    8

    Default

    Is there any update on this?
    Or how to access this ticket?

  8. #8

    Default

    Werdex, can you please provide more information about what you are having an issue with?

    Perhaps start a new thread with detail description of what you have set up and what issue you are facing.

    Regards,

    Salvadore

  9. #9
    Join Date
    Mar 2013
    Posts
    8

    Default

    Hi salvadore,
    I am having exactly the same issue.
    <Property>
    <Name>seekTarget</Name>
    <Value>enhanced</Value>
    </Property>

    Still rtmp seek jumps to the nearest frame instead of accurate seek to the requested offset. I am using wowza 4.2.0.
    I am using custom rtmp player by calling netstream.seek and using flv video with h264 codec.
    Is this feature does not work anymore in wowza4? (i havent tried it with wowza 3).
    What is the best way to debug this setting on server side inside app?

  10. #10

    Default

    Hi,

    Regarding the original issue, the customer was updated via our ticketing process. Our engineers were not able to replicate the issue and have confirmed that advanced seeking does still work correctly in version 4, so long as the properties are added correctly to the "vod" application that is being used for testing.


    Regards,

    Paul

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