Return an error when DocType, DocTypeReadVersion, DocTypeVersion
EBMLMaxIDLength or EBMLMaxSizeLength are invalid or cannot be
handled by mkvparser.
Update samples to respect the return value from EBMLHeader::Parse.
BUG=https://code.google.com/p/webm/issues/detail?id=1057
Change-Id: I9337f13c1d5fa366b1101e48fe6bc46eb5b2ee97
Modified the mkvmuxer to write the ChapterStringUID
sub-element of the Chapter Atom element.
Modified the mkvparser to read the ChapterStringUID
sub-element of the chapter atom.
Modified the vttdemux app to write the Cue Identifier
line of the WebVTT cue.
Change-Id: I06fe386f44897ada3fe10cbf89096df104dcf779
vttdemux is a tool for demuxing a webm file containing
WebVTT metadata tracks, extracting the embedded metadata
from each track and storing it as a standalone WebVTT file.
Change-Id: I8897b3dc502c49c92f5b79925939baa5a9490aaa