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Karl Mogensen
0ce7bd66a7
Why: the change is done to comply with lilv expectations of hosts.
Added call lilv_instance_activate in the config_output function to abide by lilv documentation that states it must be called before lilv_instance_run:
"This MUST be called before calling lilv_instance_run()" - documentation source (https://github.com/lv2/lilv/blob/main/include/lilv/lilv.h)
Added call lilv_instance_deactivate in the uninit function to abide by lv2 documentation:
"If a host calls activate(), it MUST call deactivate() at some point in the future" - documentation source (https://gitlab.com/lv2/lv2/-/blob/main/include/lv2/core/lv2.h)
Added instance_activated integer to LV2Context struct to track if instance was activated and only do lilv_instance_deactivate if was activated to abide by lv2 documentation:
"Hosts MUST NOT call deactivate() unless activate() was previously called." - documentation source (https://gitlab.com/lv2/lv2/-/blob/main/include/lv2/core/lv2.h)
Regarding the patcheck warning (possibly constant :instance_activated):
This is a false positive since the struct member is zero-initialized.
Fixes: trac issue #11661 (https://trac.ffmpeg.org/ticket/11661)
Reported-by: Dave Flater
Signed-off-by: Karl Mogensen <karlmogensen0@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit fa281d1394)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>