Shaka-player: SegmentURLs with query parameters gives an invalid mpd file

Created on 6 Aug 2019  路  3Comments  路  Source: google/shaka-player

I want to upload segments to firebase storage which adds query parameters on downloadUrl (e.g. "https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Finit-stream0.m4s?alt=media&token=c933794a-1240-4275-8fa0-9db6aa27b93c"). And I just put these urls into SegmentURL. But this gives me an invalid mpd file. Could you tell me why and how to resolve, please? 

<?xml version="1.0" encoding="utf-8"?>
<MPD xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="urn:mpeg:dash:schema:mpd:2011"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xsi:schemaLocation="urn:mpeg:DASH:schema:MPD:2011 http://standards.iso.org/ittf/PubliclyAvailableStandards/MPEG-DASH_schema_files/DASH-MPD.xsd"
    profiles="urn:mpeg:dash:profile:isoff-live:2011"
    type="static"
    mediaPresentationDuration="PT38.1S"
    minBufferTime="PT10.0S">
    <ProgramInformation>
    </ProgramInformation>
    <Period id="0" start="PT0.0S">
        <AdaptationSet id="0" contentType="audio" segmentAlignment="true" bitstreamSwitching="true" lang="eng">
            <Representation id="0" mimeType="audio/mp4" codecs="mp4a.40.2" bandwidth="96000" audioSamplingRate="44100">
                <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2" />
                <SegmentList timescale="1000000" duration="5005000" startNumber="1">
                    <Initialization sourceURL="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Finit-stream0.m4s?alt=media&token=c933794a-1240-4275-8fa0-9db6aa27b93c" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00001.m4s?alt=media&token=7f474b08-7d8a-410e-a7a6-866fc065ebb8" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00002.m4s?alt=media&token=23984c71-e70f-44ed-979e-8be6d2fa91be" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00003.m4s?alt=media&token=94f5dc0f-f89e-4aa2-951b-efa323a37469" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00004.m4s?alt=media&token=5ddbded7-6b94-4542-b838-ba19c7518fe2" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00005.m4s?alt=media&token=f5386feb-44ec-4160-bd40-df3fc8cb3a98" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00006.m4s?alt=media&token=6e3261ed-7859-4d35-b6ca-78d199dc063d" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00007.m4s?alt=media&token=490ace6f-37c3-43fd-af44-ebd4ad2900d0" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream0-00008.m4s?alt=media&token=8c6670e3-369d-493c-a9b8-fada67f10de5" />
                </SegmentList>
            </Representation>
        </AdaptationSet>
        <AdaptationSet id="1" contentType="video" segmentAlignment="true" bitstreamSwitching="true">
            <Representation id="1" mimeType="video/mp4" codecs="avc1.4d4015" bandwidth="350000" width="426" height="240" frameRate="24000/1001">
                <SegmentList timescale="1000000" duration="5005000" startNumber="1">
                    <Initialization sourceURL="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Finit-stream1.m4s?alt=media&token=32495d99-a063-492b-9a6f-78210caf7dba" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00001.m4s?alt=media&token=a1874b0b-caca-43f6-a594-e69cfcc4db1b" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00002.m4s?alt=media&token=e8e47ed8-4aeb-4728-aaa6-8022fd1c9a6e" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00003.m4s?alt=media&token=460e11e2-3405-4d9b-876e-6e0f2548e3c2" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00004.m4s?alt=media&token=1c9b3999-f6ed-43c2-a7f5-75dea3add1c9" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00005.m4s?alt=media&token=db4cc43a-9040-4cae-b0a9-a3ac93db5726" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00006.m4s?alt=media&token=2eabc91a-37ea-426c-b70e-62e68784feef" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00007.m4s?alt=media&token=ff772ad6-282d-4fba-8ebc-d527e7a51339" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream1-00008.m4s?alt=media&token=3984d229-9586-4f63-abcb-928fe75dad9e" />
                </SegmentList>
            </Representation>
        </AdaptationSet>
        <AdaptationSet id="2" contentType="video" segmentAlignment="true" bitstreamSwitching="true">
            <Representation id="2" mimeType="video/mp4" codecs="avc1.4d401e" bandwidth="700000" width="854" height="480" frameRate="24000/1001">
                <SegmentList timescale="1000000" duration="5005000" startNumber="1">
                    <Initialization sourceURL="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Finit-stream2.m4s?alt=media&token=ee7b0614-c4b0-4896-b5e1-d4f2ed2f8acf" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00001.m4s?alt=media&token=df5bd1a7-b680-4379-90e6-81e58bd1f7ed" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00002.m4s?alt=media&token=b2be0073-9782-4293-9de0-c9352f98eff0" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00003.m4s?alt=media&token=46ef616f-f305-4917-84e2-25c8c61a12a2" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00004.m4s?alt=media&token=2763ede5-c047-4136-8caa-0faa2fba61b0" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00005.m4s?alt=media&token=118a4416-a7cd-44e0-9c78-5f755b27de0b" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00006.m4s?alt=media&token=96f1cd73-c379-420f-8ea8-f7080f51fe27" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00007.m4s?alt=media&token=c442b2bb-0dcb-4b90-bffa-5df0736e82fb" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream2-00008.m4s?alt=media&token=80c47db9-3852-472f-a22d-6707957d78c8" />
                </SegmentList>
            </Representation>
        </AdaptationSet>
        <AdaptationSet id="3" contentType="video" segmentAlignment="true" bitstreamSwitching="true">
            <Representation id="3" mimeType="video/mp4" codecs="avc1.4d401f" bandwidth="2500000" width="1280" height="720" frameRate="24000/1001">
                <SegmentList timescale="1000000" duration="5005000" startNumber="1">
                    <Initialization sourceURL="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Finit-stream3.m4s?alt=media&token=2198c978-b9a2-4f48-ab1f-d23df27cea72" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00001.m4s?alt=media&token=3872f770-1c65-4997-a999-91e8240a746e" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00002.m4s?alt=media&token=5944b242-b4cd-4967-af19-ab187dc3f7dd" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00003.m4s?alt=media&token=9c434314-72a8-4898-9e64-cf968c2b5555" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00004.m4s?alt=media&token=197f19e6-9aee-499f-ae3f-3e656762aef3" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00005.m4s?alt=media&token=25d4dbc9-e778-4457-bf26-9e422f8b41a7" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00006.m4s?alt=media&token=d38678bb-1a6e-4d2a-a864-0337a1a83342" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00007.m4s?alt=media&token=91b614e3-f5bf-47b8-89e7-947e91760bff" />
                    <SegmentURL media="https://firebasestorage.googleapis.com/v0/b/angar-fashion.appspot.com/o/mpeg-dash%2Fchunk-stream3-00008.m4s?alt=media&token=f1fd05a6-56b5-4d15-88ad-e714832b5f59" />
                </SegmentList>
            </Representation>
        </AdaptationSet>
    </Period>
</MPD>
archived bad content question working as intended
Source
picture luusetsenkoodbichsen

All 3 comments

That is invalid XML. You need to escape the & symbol in XML as &amp;.

Does this help?

joeyparrish picture joeyparrish on 6 Aug 2019
❤1

That is invalid XML. You need to escape the & symbol in XML as &amp;.

Does this help?

You've just saved my 2 days effort with that your shorty short answer. Thanks a lot :)

luusetsenkoodbichsen picture luusetsenkoodbichsen on 6 Aug 2019

Always happy to help. I've made that exact mistake before!

joeyparrish picture joeyparrish on 6 Aug 2019
😄1
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