Zaggy1024 f0d7d1d5f5 LibMedia: Track Matroska master element ends with position() ...

We don't actually need a Vector stack of bytes read for each element
we're reading out of a Matroska file, we already have the C++ stack
in which we can store the start and end of the master elements we're
reading.

This fixes an issue where seeks while parsing master elements would not
increment m_octets_read, so the master element could continue reading
further than intended.

This could cause a BlockGroup followed by a SimpleBlock to read as if
the BlockGroup contained the SimpleBlock, meaning that SampleIterator
would skip the SimpleBlock.

A test is added to ensure this doesn't regress again.

2026-01-28 14:48:03 -06:00

123 B

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