Do not force earliest_presentation_time to 0 for VOD

Instead, the actual earliest presentation time is used except for
the first segment if there is an offset between presentation time
(pts) and decoding time (dts).

Chrome (as of v66) reports dts instead of pts in buffered ranges in
MSE API. To avoid breaking Chrome, the earliest_presentation_time
of the first segment is set to its dts as Chrome does not like negative
values for
  adjusted dts = dts + Period@start (0 for the first period)
                 - presentationTimeOffset (earliest_presentation_time).

Fixes #303.

Change-Id: I5ca80e05d5570961400499436f2bcc01f06e69e0
This commit is contained in:
KongQun Yang 2018-03-27 09:27:17 -07:00
parent 668335c647
commit 1223694249
76 changed files with 127 additions and 108 deletions

View File

@ -10,7 +10,7 @@
<Representation id="0" bandwidth="81568" codecs="opus" mimeType="audio/mp4" audioSamplingRate="48000"> <Representation id="0" bandwidth="81568" codecs="opus" mimeType="audio/mp4" audioSamplingRate="48000">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_audio.mp4</BaseURL> <BaseURL>output_audio.mp4</BaseURL>
<SegmentBase indexRange="975-1042" timescale="1000000"> <SegmentBase indexRange="975-1042" timescale="1000000" presentationTimeOffset="36999">
<Initialization range="0-974"/> <Initialization range="0-974"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
@ -22,7 +22,7 @@
</ContentProtection> </ContentProtection>
<Representation id="1" bandwidth="210205" codecs="vp09.00.10.08.01.02.02.02.00" mimeType="video/mp4" sar="427:320"> <Representation id="1" bandwidth="210205" codecs="vp09.00.10.08.01.02.02.02.00" mimeType="video/mp4" sar="427:320">
<BaseURL>output_video.mp4</BaseURL> <BaseURL>output_video.mp4</BaseURL>
<SegmentBase indexRange="1063-1130" timescale="1000000"> <SegmentBase indexRange="1063-1130" timescale="1000000" presentationTimeOffset="36999">
<Initialization range="0-1062"/> <Initialization range="0-1062"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -6,7 +6,7 @@
<Representation id="0" bandwidth="76531" codecs="opus" mimeType="audio/webm" audioSamplingRate="48000"> <Representation id="0" bandwidth="76531" codecs="opus" mimeType="audio/webm" audioSamplingRate="48000">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_audio.webm</BaseURL> <BaseURL>output_audio.webm</BaseURL>
<SegmentBase indexRange="323-371" timescale="1000000"> <SegmentBase indexRange="323-371" timescale="1000000" presentationTimeOffset="36999">
<Initialization range="0-322"/> <Initialization range="0-322"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
@ -14,7 +14,7 @@
<AdaptationSet id="1" contentType="video" width="320" height="240" frameRate="1000000/34000" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="1" contentType="video" width="320" height="240" frameRate="1000000/34000" subsegmentAlignment="true" par="16:9">
<Representation id="1" bandwidth="203360" codecs="vp9" mimeType="video/webm" sar="427:320"> <Representation id="1" bandwidth="203360" codecs="vp9" mimeType="video/webm" sar="427:320">
<BaseURL>output_video.webm</BaseURL> <BaseURL>output_video.webm</BaseURL>
<SegmentBase indexRange="302-350" timescale="1000000"> <SegmentBase indexRange="302-350" timescale="1000000" presentationTimeOffset="36999">
<Initialization range="0-301"/> <Initialization range="0-301"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cbc1" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cbc1" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cbcs" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cbcs" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,7 +1,7 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360668182373047S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0" duration="PT2.002S"> <Period id="0" duration="PT2.0687333333333333S">
<AdaptationSet id="0" contentType="audio" subsegmentAlignment="true"> <AdaptationSet id="0" contentType="audio" subsegmentAlignment="true">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>
<ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b"> <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="885590" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="885590" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cens" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cens" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
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<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
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<Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">

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@ -7,10 +7,11 @@
<ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b"> <ContentProtection schemeIdUri="urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b">
<cenc:pssh>AAAANHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAAAExMjM0NTY3ODkwMTIzNDU2AAAAAA==</cenc:pssh> <cenc:pssh>AAAANHBzc2gBAAAAEHfv7MCyTQKs4zweUuL7SwAAAAExMjM0NTY3ODkwMTIzNDU2AAAAAA==</cenc:pssh>
</ContentProtection> </ContentProtection>
<Representation id="0" bandwidth="875692" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="854753" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">
<SegmentTemplate timescale="30000" initialization="output_video-init.mp4" media="output_video-$Number$.m4s" startNumber="1"> <SegmentTemplate timescale="30000" initialization="output_video-init.mp4" media="output_video-$Number$.m4s" startNumber="1">
<SegmentTimeline> <SegmentTimeline>
<S t="2002" d="30030" r="1"/> <S t="0" d="32032"/>
<S t="32032" d="30030"/>
<S t="62062" d="22022"/> <S t="62062" d="22022"/>
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@ -3,14 +3,15 @@
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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="text" subsegmentAlignment="true"> <AdaptationSet id="0" contentType="text" subsegmentAlignment="true">
<Representation id="0" bandwidth="256" mimeType="text/vtt"> <Representation id="0" bandwidth="256" mimeType="text/vtt">

View File

@ -5,7 +5,7 @@
#EXT-X-PLAYLIST-TYPE:VOD #EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0" #EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0"
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity" #EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity"
#EXTINF:1.001, #EXTINF:1.068,
#EXT-X-BYTERANGE:93805@1159 #EXT-X-BYTERANGE:93805@1159
output_video.mp4 output_video.mp4
#EXTINF:1.001, #EXTINF:1.001,

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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.8695333003997803S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/> <ContentProtection value="cenc" schemeIdUri="urn:mpeg:dash:mp4protection:2011" cenc:default_KID="31323334-3536-3738-3930-313233343536"/>

View File

@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="30000/1001" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="882064" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1">

View File

@ -5,7 +5,7 @@
#EXT-X-PLAYLIST-TYPE:VOD #EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0" #EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0"
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity" #EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity"
#EXTINF:1.001, #EXTINF:1.068,
#EXT-X-BYTERANGE:99313@1159 #EXT-X-BYTERANGE:99313@1159
output_video.mp4 output_video.mp4
#EXTINF:1.001, #EXTINF:1.001,

View File

@ -5,7 +5,7 @@
#EXT-X-PLAYLIST-TYPE:VOD #EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0" #EXT-X-MAP:URI="output_video.mp4",BYTERANGE="1091@0"
#EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity" #EXT-X-KEY:METHOD=SAMPLE-AES-CTR,URI="data:text/plain;base64,MTIzNDU2Nzg5MDEyMzQ1Ng==",KEYFORMAT="identity"
#EXTINF:1.001, #EXTINF:1.068,
#EXT-X-BYTERANGE:99313@1159 #EXT-X-BYTERANGE:99313@1159
output_video.mp4 output_video.mp4
#EXTINF:1.001, #EXTINF:1.001,

View File

@ -4,7 +4,7 @@
#EXT-X-TARGETDURATION:2 #EXT-X-TARGETDURATION:2
#EXT-X-PLAYLIST-TYPE:VOD #EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MAP:URI="video-init.mp4" #EXT-X-MAP:URI="video-init.mp4"
#EXTINF:1.001, #EXTINF:1.068,
video-1.m4s video-1.m4s
#EXTINF:1.001, #EXTINF:1.001,
video-2.m4s video-2.m4s

View File

@ -4,7 +4,7 @@
#EXT-X-TARGETDURATION:2 #EXT-X-TARGETDURATION:2
#EXT-X-PLAYLIST-TYPE:VOD #EXT-X-PLAYLIST-TYPE:VOD
#EXT-X-MAP:URI="output_video.mp4",BYTERANGE="823@0" #EXT-X-MAP:URI="output_video.mp4",BYTERANGE="823@0"
#EXTINF:1.001, #EXTINF:1.068,
#EXT-X-BYTERANGE:99313@891 #EXT-X-BYTERANGE:99313@891
output_video.mp4 output_video.mp4
#EXTINF:1.001, #EXTINF:1.001,

View File

@ -9,7 +9,7 @@
</ContentProtection> </ContentProtection>
<Representation id="0" bandwidth="341018" codecs="vp08.00.10.08.01.02.02.02.00" mimeType="video/mp4" sar="1:1"> <Representation id="0" bandwidth="341018" codecs="vp08.00.10.08.01.02.02.02.00" mimeType="video/mp4" sar="1:1">
<BaseURL>output_video.mp4</BaseURL> <BaseURL>output_video.mp4</BaseURL>
<SegmentBase indexRange="1031-1098" timescale="1000000"> <SegmentBase indexRange="1031-1098" timescale="1000000" presentationTimeOffset="25999">
<Initialization range="0-1030"/> <Initialization range="0-1030"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -8,7 +8,7 @@
</ContentProtection> </ContentProtection>
<Representation id="0" bandwidth="337062" codecs="vp8" mimeType="video/webm" sar="1:1"> <Representation id="0" bandwidth="337062" codecs="vp8" mimeType="video/webm" sar="1:1">
<BaseURL>output_video.webm</BaseURL> <BaseURL>output_video.webm</BaseURL>
<SegmentBase indexRange="340-389" timescale="1000000"> <SegmentBase indexRange="340-389" timescale="1000000" presentationTimeOffset="25999">
<Initialization range="0-339"/> <Initialization range="0-339"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -5,7 +5,7 @@
<AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="1000000/33000" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" width="640" height="360" frameRate="1000000/33000" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="335457" codecs="vp8" mimeType="video/webm" sar="1:1"> <Representation id="0" bandwidth="335457" codecs="vp8" mimeType="video/webm" sar="1:1">
<BaseURL>output_video.webm</BaseURL> <BaseURL>output_video.webm</BaseURL>
<SegmentBase indexRange="289-338" timescale="1000000"> <SegmentBase indexRange="289-338" timescale="1000000" presentationTimeOffset="25999">
<Initialization range="0-288"/> <Initialization range="0-288"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -1,17 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" maxWidth="640" maxHeight="360" frameRate="90000/3003" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" maxWidth="640" maxHeight="360" frameRate="90000/3003" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="354240" codecs="avc3.64000d" mimeType="video/mp4" sar="1:1" width="320" height="180"> <Representation id="0" bandwidth="354240" codecs="avc3.64000d" mimeType="video/mp4" sar="1:1" width="320" height="180">
<BaseURL>output_0.mp4</BaseURL> <BaseURL>output_0.mp4</BaseURL>
<SegmentBase indexRange="818-885" timescale="90000"> <SegmentBase indexRange="818-885" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-817"/> <Initialization range="0-817"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
<Representation id="2" bandwidth="888442" codecs="avc3.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360"> <Representation id="2" bandwidth="888442" codecs="avc3.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
<BaseURL>output_2.mp4</BaseURL> <BaseURL>output_2.mp4</BaseURL>
<SegmentBase indexRange="819-886" timescale="90000"> <SegmentBase indexRange="819-886" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-818"/> <Initialization range="0-818"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
@ -20,14 +20,14 @@
<Representation id="1" bandwidth="132362" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100"> <Representation id="1" bandwidth="132362" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_1.mp4</BaseURL> <BaseURL>output_1.mp4</BaseURL>
<SegmentBase indexRange="757-824" timescale="90000"> <SegmentBase indexRange="757-824" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-756"/> <Initialization range="0-756"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
<Representation id="3" bandwidth="136806" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100"> <Representation id="3" bandwidth="136806" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_3.mp4</BaseURL> <BaseURL>output_3.mp4</BaseURL>
<SegmentBase indexRange="757-824" timescale="90000"> <SegmentBase indexRange="757-824" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-756"/> <Initialization range="0-756"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -1,17 +1,17 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>--> <!--Generated with https://github.com/google/shaka-packager version <tag>-<hash>-<test>-->
<MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.7360665798187256S"> <MPD xmlns="urn:mpeg:dash:schema:mpd:2011" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="urn:mpeg:dash:schema:mpd:2011 DASH-MPD.xsd" xmlns:cenc="urn:mpeg:cenc:2013" profiles="urn:mpeg:dash:profile:isoff-on-demand:2011" minBufferTime="PT2S" type="static" mediaPresentationDuration="PT2.802799940109253S">
<Period id="0"> <Period id="0">
<AdaptationSet id="0" contentType="video" maxWidth="640" maxHeight="360" frameRate="90000/3003" subsegmentAlignment="true" par="16:9"> <AdaptationSet id="0" contentType="video" maxWidth="640" maxHeight="360" frameRate="90000/3003" subsegmentAlignment="true" par="16:9">
<Representation id="0" bandwidth="353919" codecs="avc1.64000d" mimeType="video/mp4" sar="1:1" width="320" height="180"> <Representation id="0" bandwidth="353919" codecs="avc1.64000d" mimeType="video/mp4" sar="1:1" width="320" height="180">
<BaseURL>output_0.mp4</BaseURL> <BaseURL>output_0.mp4</BaseURL>
<SegmentBase indexRange="822-889" timescale="90000"> <SegmentBase indexRange="822-889" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-821"/> <Initialization range="0-821"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
<Representation id="2" bandwidth="888108" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360"> <Representation id="2" bandwidth="888108" codecs="avc1.64001e" mimeType="video/mp4" sar="1:1" width="640" height="360">
<BaseURL>output_2.mp4</BaseURL> <BaseURL>output_2.mp4</BaseURL>
<SegmentBase indexRange="823-890" timescale="90000"> <SegmentBase indexRange="823-890" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-822"/> <Initialization range="0-822"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
@ -20,14 +20,14 @@
<Representation id="1" bandwidth="132362" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100"> <Representation id="1" bandwidth="132362" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_1.mp4</BaseURL> <BaseURL>output_1.mp4</BaseURL>
<SegmentBase indexRange="757-824" timescale="90000"> <SegmentBase indexRange="757-824" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-756"/> <Initialization range="0-756"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>
<Representation id="3" bandwidth="136806" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100"> <Representation id="3" bandwidth="136806" codecs="mp4a.40.2" mimeType="audio/mp4" audioSamplingRate="44100">
<AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/> <AudioChannelConfiguration schemeIdUri="urn:mpeg:dash:23003:3:audio_channel_configuration:2011" value="2"/>
<BaseURL>output_3.mp4</BaseURL> <BaseURL>output_3.mp4</BaseURL>
<SegmentBase indexRange="757-824" timescale="90000"> <SegmentBase indexRange="757-824" timescale="90000" presentationTimeOffset="17999">
<Initialization range="0-756"/> <Initialization range="0-756"/>
</SegmentBase> </SegmentBase>
</Representation> </Representation>

View File

@ -6,6 +6,7 @@
#include "packager/media/formats/mp4/fragmenter.h" #include "packager/media/formats/mp4/fragmenter.h"
#include <algorithm>
#include <limits> #include <limits>
#include "packager/media/base/audio_stream_info.h" #include "packager/media/base/audio_stream_info.h"
@ -150,6 +151,24 @@ Status Fragmenter::FinalizeFragment() {
return status; return status;
} }
if (first_fragment_) {
// Chrome (as of v66 https://crbug.com/398141) does not like negative values
// for adjusted dts = dts + Period@start (0 for first Period)
// - presentationTimeOffset
// Since |earliest_presentation_time| of the first fragment will be used to
// set presentationTimeOffset, the adjusted dts can become negative for the
// frames in the first segment in the first Period. To avoid seeing that,
// |earliest_presentation_time| is adjusted so it is not larger than the
// dts.
const int64_t dts = traf_->decode_time.decode_time;
if (earliest_presentation_time_ > dts) {
const uint64_t delta = earliest_presentation_time_ - dts;
earliest_presentation_time_ = dts;
fragment_duration_ += delta;
}
first_fragment_ = false;
}
// Optimize trun box. // Optimize trun box.
traf_->runs[0].sample_count = traf_->runs[0].sample_count =
static_cast<uint32_t>(traf_->runs[0].sample_sizes.size()); static_cast<uint32_t>(traf_->runs[0].sample_sizes.size());
@ -208,7 +227,7 @@ Status Fragmenter::FinalizeFragment() {
return Status::OK; return Status::OK;
} }
void Fragmenter::GenerateSegmentReference(SegmentReference* reference) { void Fragmenter::GenerateSegmentReference(SegmentReference* reference) const {
// NOTE: Daisy chain is not supported currently. // NOTE: Daisy chain is not supported currently.
reference->reference_type = false; reference->reference_type = false;
reference->subsegment_duration = fragment_duration_; reference->subsegment_duration = fragment_duration_;
@ -275,7 +294,7 @@ Status Fragmenter::FinalizeFragmentForEncryption() {
return Status::OK; return Status::OK;
} }
bool Fragmenter::StartsWithSAP() { bool Fragmenter::StartsWithSAP() const {
DCHECK(!traf_->runs.empty()); DCHECK(!traf_->runs.empty());
uint32_t start_sample_flag; uint32_t start_sample_flag;
if (traf_->runs[0].flags & TrackFragmentRun::kSampleFlagsPresentMask) { if (traf_->runs[0].flags & TrackFragmentRun::kSampleFlagsPresentMask) {

View File

@ -51,7 +51,7 @@ class Fragmenter {
Status FinalizeFragment(); Status FinalizeFragment();
/// Fill @a reference with current fragment information. /// Fill @a reference with current fragment information.
void GenerateSegmentReference(SegmentReference* reference); void GenerateSegmentReference(SegmentReference* reference) const;
void ClearFragmentFinalized() { fragment_finalized_ = false; } void ClearFragmentFinalized() { fragment_finalized_ = false; }
@ -88,7 +88,7 @@ class Fragmenter {
private: private:
Status FinalizeFragmentForEncryption(); Status FinalizeFragmentForEncryption();
// Check if the current fragment starts with SAP. // Check if the current fragment starts with SAP.
bool StartsWithSAP(); bool StartsWithSAP() const;
std::shared_ptr<const StreamInfo> stream_info_; std::shared_ptr<const StreamInfo> stream_info_;
bool use_decoding_timestamp_in_timeline_; bool use_decoding_timestamp_in_timeline_;
@ -98,6 +98,7 @@ class Fragmenter {
bool fragment_finalized_; bool fragment_finalized_;
uint64_t fragment_duration_; uint64_t fragment_duration_;
int64_t earliest_presentation_time_; int64_t earliest_presentation_time_;
bool first_fragment_ = true;
int64_t first_sap_time_; int64_t first_sap_time_;
std::unique_ptr<BufferWriter> data_; std::unique_ptr<BufferWriter> data_;
// Saves key frames information, for Video. // Saves key frames information, for Video.

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@ -196,25 +196,7 @@ Status SingleSegmentSegmenter::DoFinalizeSegment() {
vod_sidx_.reset(new SegmentIndex()); vod_sidx_.reset(new SegmentIndex());
vod_sidx_->reference_id = sidx()->reference_id; vod_sidx_->reference_id = sidx()->reference_id;
vod_sidx_->timescale = sidx()->timescale; vod_sidx_->timescale = sidx()->timescale;
vod_sidx_->earliest_presentation_time = vod_ref.earliest_presentation_time;
if (vod_ref.earliest_presentation_time > 0) {
const double starting_time_in_seconds =
static_cast<double>(vod_ref.earliest_presentation_time) /
GetReferenceTimeScale();
// Give a warning if it is significant.
if (starting_time_in_seconds > 0.5) {
// Note that DASH IF player requires presentationTimeOffset to be set in
// Segment{Base,List,Template} if there is non-zero starting time. Since
// current Chromium's MSE implementation uses DTS, the player expects
// DTS to be used.
LOG(WARNING) << "Warning! Non-zero starting time (in seconds): "
<< starting_time_in_seconds
<< ". Manual adjustment of presentationTimeOffset in "
"mpd might be necessary.";
}
}
// Force earliest_presentation_time to start from 0 for VOD.
vod_sidx_->earliest_presentation_time = 0;
} }
vod_sidx_->references.push_back(vod_ref); vod_sidx_->references.push_back(vod_ref);

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@ -338,7 +338,6 @@ bool MpdBuilder::GetEarliestTimestamp(double* timestamp_seconds) {
void MpdBuilder::UpdatePeriodDurationAndPresentationTimestamp() { void MpdBuilder::UpdatePeriodDurationAndPresentationTimestamp() {
DCHECK_EQ(MpdType::kStatic, mpd_options_.mpd_type); DCHECK_EQ(MpdType::kStatic, mpd_options_.mpd_type);
bool first_period = true;
for (const auto& period : periods_) { for (const auto& period : periods_) {
std::list<Representation*> video_representations; std::list<Representation*> video_representations;
std::list<Representation*> non_video_representations; std::list<Representation*> non_video_representations;
@ -378,21 +377,6 @@ void MpdBuilder::UpdatePeriodDurationAndPresentationTimestamp() {
period->set_duration_seconds(*latest_end_time - *earliest_start_time); period->set_duration_seconds(*latest_end_time - *earliest_start_time);
double presentation_time_offset = *earliest_start_time; double presentation_time_offset = *earliest_start_time;
if (first_period) {
first_period = false;
// Chrome does not like negative dts (https://crbug.com/398141).
// Always set presentationTimeOffset (pto) to 0 for the first period as it
// may result in an error on Chrome v63.0.3239.132 if it sets to a non
// zero value.
// It is fine with subsequent periods as the actual offset applied takes
// Period@start into consideration:
// offset = Period@start - presentationTimeOffset
// The result timestamp with offset applied is close to Period@start, so
// it is unlikely to result in a negative dts value.
// TODO(kqyang): Set the pto to |dts| instead of always setting it to 0 to
// workaround Chrome negative DTS bug.
presentation_time_offset = 0;
}
for (const auto& adaptation_set : period->GetAdaptationSets()) { for (const auto& adaptation_set : period->GetAdaptationSets()) {
for (const auto& representation : adaptation_set->GetRepresentations()) { for (const auto& representation : adaptation_set->GetRepresentations()) {
representation->SetPresentationTimeOffset(presentation_time_offset); representation->SetPresentationTimeOffset(presentation_time_offset);

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@ -174,6 +174,29 @@ TEST_F(OnDemandMpdBuilderTest, MediaInfoMissingBandwidth) {
ASSERT_FALSE(mpd_.ToString(&mpd_doc)); ASSERT_FALSE(mpd_.ToString(&mpd_doc));
} }
TEST_F(OnDemandMpdBuilderTest, CheckXmlTest) {
// Disable pto adjustment.
FLAGS_pto_adjustment = 0;
const double kPeriod1StartTimeSeconds = 0.0;
// Actual period duration is determined by the segments not by the period
// start time above, which only provides an anchor point.
const double kPeriod1SegmentStartSeconds = 0.2;
const double kPeriod1SegmentDurationSeconds = 3.0;
Period* period = mpd_.GetOrCreatePeriod(kPeriod1StartTimeSeconds);
AddSegmentToPeriod(kPeriod1SegmentStartSeconds,
kPeriod1SegmentDurationSeconds, period);
std::string mpd_doc;
ASSERT_TRUE(mpd_.ToString(&mpd_doc));
EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"0\">\n"));
EXPECT_THAT(mpd_doc,
HasSubstr("<SegmentBase indexRange=\"121-221\""
" timescale=\"1000\" presentationTimeOffset=\"200\">"));
}
TEST_F(OnDemandMpdBuilderTest, MultiplePeriodTest) { TEST_F(OnDemandMpdBuilderTest, MultiplePeriodTest) {
const double kPeriodStartTimeSeconds = 1.0; const double kPeriodStartTimeSeconds = 1.0;
Period* period = mpd_.GetOrCreatePeriod(kPeriodStartTimeSeconds); Period* period = mpd_.GetOrCreatePeriod(kPeriodStartTimeSeconds);
@ -226,15 +249,17 @@ TEST_F(OnDemandMpdBuilderTest, MultiplePeriodCheckXmlTest) {
std::string mpd_doc; std::string mpd_doc;
ASSERT_TRUE(mpd_.ToString(&mpd_doc)); ASSERT_TRUE(mpd_.ToString(&mpd_doc));
EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"0\" duration=\"PT3S\">\n")); EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"0\" duration=\"PT3S\">\n"));
EXPECT_THAT(mpd_doc,
HasSubstr("<SegmentBase indexRange=\"121-221\""
" timescale=\"1000\" presentationTimeOffset=\"200\">"));
EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"1\" duration=\"PT10.5S\">\n"));
EXPECT_THAT( EXPECT_THAT(
mpd_doc, mpd_doc,
HasSubstr("<SegmentBase indexRange=\"121-221\" timescale=\"1000\">"));
EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"1\" duration=\"PT10.5S\">\n"));
EXPECT_THAT(mpd_doc,
HasSubstr("<SegmentBase indexRange=\"121-221\"" HasSubstr("<SegmentBase indexRange=\"121-221\""
" timescale=\"1000\" presentationTimeOffset=\"5500\">")); " timescale=\"1000\" presentationTimeOffset=\"5500\">"));
EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"2\" duration=\"PT10S\">\n")); EXPECT_THAT(mpd_doc, HasSubstr("<Period id=\"2\" duration=\"PT10S\">\n"));
EXPECT_THAT(mpd_doc, EXPECT_THAT(
mpd_doc,
HasSubstr("<SegmentBase indexRange=\"121-221\"" HasSubstr("<SegmentBase indexRange=\"121-221\""
" timescale=\"1000\" presentationTimeOffset=\"1500\">")); " timescale=\"1000\" presentationTimeOffset=\"1500\">"));
} }