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Don't try to process_input() if an IO has no ports; fixes

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#4546.


git-svn-id: svn://localhost/ardour2/branches/3.0@10965 d708f5d6-7413-0410-9779-e7cbd77b26cf
This commit is contained in:
Carl Hetherington 2011-12-10 14:03:37 +00:00
parent e02e25e3f3
commit 5344f5ca0f
1 changed files with 5 additions and 0 deletions
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5
libs/ardour/io.cc
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@ -1554,6 +1554,11 @@ IO::process_input (boost::shared_ptr<Processor> proc, framepos_t start_frame, fr
{
/* don't read the data into new buffers - just use the port buffers directly */
if (n_ports().n_total() == 0) {
/* We have no ports, so nothing to process */
return;
}
_buffers.get_jack_port_addresses (_ports, nframes);
proc->run (_buffers, start_frame, end_frame, nframes, true);
}