<?xml version ="1.0" encoding ="UTF-8" ?>
<!--
This XML file describes the encryption applied to | bipbop - cenc * | . To
generate the bipbop - cenc files , run the following commands :
Encrypt bipbop - no - edts . mp4 with the keys specified in this file ,
and output to | bipbop - cenc - { video , audio } . mp4 |
MP4Box - crypt bipbop - frag - cenc . xml - rem 2 - out bipbop - cenc - video . mp4 bipbop - no - edts . mp4
MP4Box - crypt bipbop - frag - cenc . xml - rem 1 - out bipbop - cenc - audio . mp4 bipbop - no - edts . mp4
Fragment | bipbop - cenc - * . mp4 | into 500 ms segments :
MP4Box - dash 500 - rap - segment - name bipbop - cenc - video - subsegs - per - sidx 5 bipbop - cenc - video . mp4
MP4Box - dash 500 - rap - segment - name bipbop - cenc - audio - subsegs - per - sidx 5 bipbop - cenc - audio . mp4
The above command will generate a set of fragments in | bipbop - cenc - { video , audio } * . m4s
and | bipbop - cenc - { video , audio } init . mp4 | containing just the init segment .
To cut down the duration , we throw out all but the first 3 audio & 2 video segments :
rm bipbop - cenc - audio { [ ^ 123 ] , [ 123 ] [ ^ . ] } . m4s
rm bipbop - cenc - video { [ ^ 12 ] , [ 12 ] [ ^ . ] } . m4s
MP4Box will also have generated some * . mpd files we don ' t need :
rm bipbop - cenc - * . mpd
Delete intermediate encrypted files :
rm bipbop - cenc - { audio , video } . mp4
-->
<GPACDRM type ="CENC AES-CTR" >
<DRMInfo type ="pssh" version ="1" >
<!--
SystemID specified in
https : / / dvcs . w3 . org / hg / html - media / raw - file / tip / encrypted - media / cenc - format . html
-->
<BS ID128="1077efecc0b24d02ace33c1e52e2fb4b" />
<!-- Number of KeyIDs = 2 -->
<BS bits="32" value="2" />
<!-- KeyID -->
<BS ID128="0x7e571d037e571d037e571d037e571d03" />
<BS ID128="0x7e571d047e571d047e571d047e571d04" />
</DRMInfo>
<CrypTrack trackID="1" isEncrypted="1" IV_size="16" saiSavedBox="senc"
first_IV="0x00000000000000000000000000000000" >
<key KID="0x7e571d037e571d037e571d037e571d03"
value="0x7e5733337e5733337e5733337e573333" />
</CrypTrack>
<CrypTrack trackID="2" isEncrypted="1" IV_size="16" saiSavedBox="senc"
first_IV="0x00000000000000000000000000000000" >
<key KID="0x7e571d047e571d047e571d047e571d04"
value="0x7e5744447e5744447e5744447e574444" />
</CrypTrack>
</GPACDRM>
Messung V0.5 in Prozent C=94 H=100 G=96
¤ Dauer der Verarbeitung: 0.11 Sekunden
(vorverarbeitet am 2026-09-30)
¤
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