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Fix record/import of note ons with velocity 0.

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Best to just do this as early as possible to avoid having to deal with this
situation all over the code.

Also fixes violation of LV2 MIDI specification, which requires no such events
are delivered to plugins.
This commit is contained in:
David Robillard 2015-02-19 16:54:21 -05:00
parent 6fb4bd578e
commit 450291adfc
2 changed files with 9 additions and 0 deletions
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5
libs/evoral/src/SMF.cpp
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@ -287,6 +287,11 @@ SMF::read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf, event_id_t* no
}
memcpy(*buf, event->midi_buffer, size_t(event_size));
*size = event_size;
if ((*buf)[0] == 0x90 && (*buf)[2] == 0) {
/* normalize note on with velocity 0 to proper note off */
(*buf)[0] = 0x80; /* note off */
(*buf)[2] = 0x40; /* default velocity */
}
if (!midi_event_is_valid(*buf, *size)) {
cerr << "WARNING: SMF ignoring illegal MIDI event" << endl;