Dash player for segment list with non-zero repeat count - mpeg-dash

Question

<Period programDateTime='2021-03-17T07:15:26.239Z' duration='PT1M04.078S'>
<AdaptationSet contentType='video' mimeType='video/mp4' par='16:9' id='7'>
<SegmentList timescale='90000' presentationTimeOffset='4327131510'>
<SegmentTimeline>
<!-- Doesn't work -->
<S t='4327131510' d='2903310' r='1' />
<!-- Uncomment below and remove the above and manifest will work -->
<!-- <S t='4327131510' d='2903310'/>-->
<!-- <S t='4330034820' d='2903310'/>-->
</SegmentTimeline>
</SegmentList>
<Representation id='1280x720' codecs='avc1.4d0029' width='1280' height='720' bandwidth='100000'>
<BaseURL>http://localhost:8000/downloaded/</BaseURL>
<SegmentList>
<Initialization sourceURL='1.m4v' />
<SegmentURL media='1.m4v' />
<SegmentURL media='2.m4v' />
</SegmentList>
</Representation>
</AdaptationSet>
</Period>
Dash player starts playing the manifest however, it skips the 2.m4v and reduces the size of video to just first segment. However, if I remove the repeat count field and specify each segment explicitly in segmentTimeline then it works fine.
This manifest also works fine in Shaka player.

Answer 1

Your manifest doesn't look right. I don't think the first segment list with the time line should be there. I would try:
<Period programDateTime='2021-03-17T07:15:26.239Z' duration='PT1M04.078S'>
<AdaptationSet contentType='video' mimeType='video/mp4' par='16:9' id='7'>
<Representation id='1280x720' codecs='avc1.4d0029' width='1280' height='720' bandwidth='100000'>
<BaseURL>http://localhost:8000/downloaded/</BaseURL>
<SegmentList timescale='90000' duration='2903310'>
<Initialization sourceURL='1.m4v' />
<SegmentURL media='1.m4v' />
<SegmentURL media='2.m4v' />
</SegmentList>
</Representation>
</AdaptationSet>
</Period>