[Bug 760677] basesink: always drops buffers before segment

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=760677

Olivier Crête <olivier.crete at ocrete.ca> changed:

           What    |Removed                     |Added
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                 CC|                            |olivier.crete at ocrete.ca

--- Comment #14 from Olivier Crête <olivier.crete at ocrete.ca> ---
I wonder if this can't be done using some logic which is a mix of
GST_BUFFER_FLAG_DROPPABLE + GST_BUFFER_FLAG_DELTA_UNIT  +
GST_BUFFER_FLAG_HEADER ? Maybe somethign like

if (has (HEADER) no drop;
else if (has DROPPABLE) drop
else if (PTS != DTS) no drop;
else if (has seen DELTA UNIT) nodrop; ..
else drop

That may still drop the first keyframe in stream that have no B-frames...

Another option is to do "if (DTS!=NONE) nodrop;", then make sure streams that
have no concept of keyframe or of DTS always set it to NONE?

Adding a new concept of caps flags for this seems overkill..

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