[ardour-dev] Segfault during export

[TommyDrum]

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Segfault occurring during export of session (or selection):

**gdb_export:
One track out 1 and 2, left and right respectively; export properties
Stereo WAV, 44.1KHz, 16Bit, fastest conversion quality, intel little
endian, no dither.

**gdb_export2:
Same, but at 22KHz. "Glitches occur", and then segfault.

**gdb_export3:
Same as 2, this time no "glitches occur"ed.

Segfault does NOT occur when exporting in the same or superior sample
frequency as session (in this case the default session 48KHz and
88.2KHz, haven't tried with default 44.1) in any format (which makes me
think about some strange downsampling with libsamplerate - ..14 on my
machine)

g'day (how australian am I)
Tommy

*gtk-ardour 0.510.4
*libardour 0.810.4

P.S. Strange thing occurs (by the way): After this segfault, reloading
the same snapshot, the session cannot be played or worked on, except if
trying to re-export (which doesn't work, as the session cannot be
played), and cancelling export. Afterwards the session becomes usable
and playable again.
Generally (all versions up til now) reloading snapshots or sessions
after segfaults usually pops-up new tracks never inserted, or tracks
removed previously,or other strange things.


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