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EBML-ELEM-UNKNOWN-SIZE

AKA

EBML-ELEM-SIZE-7F

Name

Element Size 0x7F Reservation.

Definition

"Note that the shortest encoding form for 127 is 0x407f since 0x7f is reserved." Provide a warning if the Element Size is set to 0x11111111 but element size is actually 127 bytes.

Reproducibility

ffmpeg -f lavfi -i testsrc2=s=120x80 -f lavfi -i sine -c:a flac -ar 8000 -vframes 2 -c:v ffv1 -level 3 -c:a flac -g 1 -write_crc32 0 -y reference.mkv
mkv2xml < reference.mkv > reference.xml
xmlstarlet ed -L --subnode /mkv2xml/Segment/Info -type elem -n Title -v 12345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678 reference.xml
xml2mkv < reference.xml > EBML-ELEM-UNKNOWN-SIZE.mkv
sfk replace EBML-ELEM-UNKNOWN-SIZE.mkv -bin '/7BA940803132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738/7BA9FF31323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334353637EC00/' -yes