[Bug 793333] matroskademux: Allow Matroska headers to be read more than once
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Fri Feb 9 12:48:54 UTC 2018
https://bugzilla.gnome.org/show_bug.cgi?id=793333
--- Comment #1 from Alicia Boya GarcĂa <aboya at igalia.com> ---
Created attachment 368183
--> https://bugzilla.gnome.org/attachment.cgi?id=368183&action=edit
matroskademux: Allow Matroska headers to be read more than once
This is necessary for MSE, where a new MSE initialization segment may be
appended at any point. These MSE initialization segments consist of an
entire WebM file until the first Cluster element (not included). [1]
Note that track definitions are ignored on successive headers, they must
match, but this is not checked by matroskademux (look for
`(!demux->tracks_parsed)` in the code).
Source pads are not altered when the new headers are read.
This patch has been splitted from the original patch from eocanha in [2].
[1] https://www.w3.org/TR/mse-byte-stream-format-webm/
[2] https://bug334082.bugzilla-attachments.gnome.org/attachment.cgi?id=362212
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