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manual: Explain what happens if upstream elements are removed from the pipeline without draining them first

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https://bugzilla.gnome.org/show_bug.cgi?id=762302
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George Yunaev 2016-02-19 08:43:00 +00:00 committed by Sebastian Dröge
parent 93e006bd66
commit e6f0095750
1 changed files with 10 additions and 0 deletions
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10
docs/manual/advanced-dataaccess.xml
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@ -1195,6 +1195,16 @@ main (int argc, char **argv)
to flush any queued data in the element by sending an EOS event
down the element sink pad(s) and by waiting that the EOS leaves
the elements (with an event probe).
</para>
If you do not do this, you will lose the data which is buffered
by the unlinked element. This can result in a simple frame loss
(one or more video frames, several milliseconds of audio). However
if you remove a muxer (and in some cases an encoder or similar elements)
from the pipeline, you risk getting a corrupted file which could not be
played properly, as some relevant metadata (header, seek/index tables, internal
sync tags) will not be stored or updated properly.
<para>
See also <xref linkend="section-dynamic-changing"/>.
</para>
</listitem>