[Webkit-unassigned] [Bug 244340] New: MSE bandwidth switching case repeated frames observed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=244340

            Bug ID: 244340
           Summary: MSE bandwidth switching case repeated frames observed
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Other
                OS: Linux
            Status: NEW
          Severity: Critical
          Priority: P2
         Component: Media
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: vasubharani96 at gmail.com

Webkit Port Revision - 2.16.5

TITLE : MSE Bandwidth switching case repeated frames observed.

URL : http://refapp.hbbtv.org/production/catalogue/index_mse-eme.php
Problem 1:

We have used older webkit port revision which is v2.16.5.We have faced the bandwidth switching related problems while playing the MSE media content,
1.Some times bandwidth switching but repeated frames displaying.
2.Some times Bandwidth not switching 

But we have not integrated the Gstreamer in our webkit. Kindly confirm whether Gstreamer is a mandatory for MSE or not.
We have used below mentioned 3 major properties as per MSE specification. Could you please clarify any other properties we need to send to browser.
Mediasample:
+++++++++++++++++
PresentationTimeStamp(Audio,Video)
Decoded Timestamp(Audio,Video)
Frame Duration (Audio,Video)

Problem 2: We observed the multiple entries in buffered range vector table while after received the media samples from player.But some times frame duration value is added as start value in TimeRange object.Kindly share any test pages for check the bandwidth switching in MSE.

kindly any one help to conclude the issue.

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