Player freezes for 2 seconds on starting to playback next manifest after the mpd refresh event reload

[Murmur]

Nightly build and a test script.
https://reference.dashif.org/dash.js/nightly/samples/dash-if-reference-player/index.html
https://refapp.hbbtv.org/videos/multiperiod_test.php

This is a simplified live script, uses the vod segments, Period@start, SegmentTemplate@startNumber, SegmentTemplate@presentationTimeOffset values to control the global timeline.

Player freezes for 2 seconds on starting to playback next manifest after the mpd refresh event reload
This test mdp writes three <Period> on each manifest, each a total duration of 24s of 8s seg_1/_2_/_3.m4s segment files.
Last period has an out-of-band(=in manifest) EventStream schemeIdUri="urn:mpeg:dash:event:2012" value="1" reload event.

Periods use SupplementalProperty schemeIdUri="urn:mpeg:dash:period-connectivity:2015" link to the previous period as this is the same continuous main content, first period in a manifest does not have a link field.

Player is playing 24s3 periods fine but then switch to a new manifest will freeze player for 2 seconds. After a short freeze player runs 24s3 periods fine until same freeze again. So this test is looping the same three 8s*3 segments=24s over and over.

Ideas why player freezes when starting to playback the second refreshed manifest?

[dsilhavy]

@Murmur I get an error on the MPD reload attempt:

XHRLoader.js:90 GET https://refapp.hbbtv.org/videos/multiperiod_v3.php?firstperiod=67631822 500 (Internal Server Error)

[Murmur]

My bad refactoring copypaste error but now fixed. Test manifest consist of three periods on each reply (3*24s, same clip from the start). Last period has an ´` reload scheduling.

Player freezes for few seconds when switching from the current(old) manifest to the new manifest. It does not freeze while playing periods within an active manifest snapshot.

https://refapp.hbbtv.org/videos/multiperiod_test.php
https://reference.dashif.org/dash.js/nightly/samples/dash-if-reference-player/index.html

[dsilhavy]

Thanks, can you please check if a762316 fixed your problem.

Change is available in nightly.

[Murmur]

thx, latest nightly build does not freeze anymore on a manifest switch-over period. I am compiling a better and more complex test so can have more test data later.

[dsilhavy]

ok thx, will close this issue then. feel free to open another one if encounter any problems.