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configure: require libEBML v1.3.5

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libEBML v1.3.5 contains the following change:

------------------------------------------------------------
EbmlMaster::CheckMandatory: only fail for default-value-less mandatory elements

The function EbmlMaster::CheckMandatory() will now only return false
if a mandatory element is missing for which there's no default value
in the specifications. This means that callers such as
EbmlMaster::UpdateSize() and by extension EbmlMaster::Render() will
not insist on all mandatory elements being present anymore, but only
those for which there's no default value.
------------------------------------------------------------

This allows mkvmerge, mkvpropedit and the GUI's header editor to only
actually add those elements that have to be added to a master before
writing it to the file. Adding e.g. the TrackLanguage element isn't
necessary anymore if should be set to "eng" anyway as "eng" is its
default value. Before the change libEBML was insisting on it being
present in the "TrackEntry" master, though, no matter what it was set
to.
This commit is contained in:
Moritz Bunkus 2017-08-09 21:20:52 +02:00
parent 54543b67bc
commit c262de4888
2 changed files with 2 additions and 1 deletions
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1
NEWS.md
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@ -53,6 +53,7 @@
* configure: added option `--disable-update-check`. If given, the code
checking online for available updates will be disabled. The update check is
enabled and included in the GUI by default.
* libEBML v1.3.5 is now required.
## Other changes

2
ac/matroska.m4
View File

@ -3,7 +3,7 @@ dnl Test for libEBML and libMatroska, and define MATROSKA_CFLAGS and MATROSKA_LI
dnl
EBML_MATROSKA_INTERNAL=no
PKG_CHECK_MODULES([EBML],[libebml >= 1.3.4],[],[EBML_MATROSKA_INTERNAL=yes])
PKG_CHECK_MODULES([EBML],[libebml >= 1.3.5],[],[EBML_MATROSKA_INTERNAL=yes])
PKG_CHECK_MODULES([MATROSKA],[libmatroska >= 1.4.5],[],[EBML_MATROSKA_INTERNAL=yes])
if test x"$EBML_MATROSKA_INTERNAL" = xyes; then