[PD-dev] [pure-data:patches] #576 ALSA_MIDI_NOTE_ON_FIX

Philip Stolz philst at users.sf.net
Sun Apr 24 21:28:28 CEST 2016


** [patches:#576] ALSA_MIDI_NOTE_ON_FIX**

**Status:** open
**Group:** bugfix
**Created:** Sun Apr 24, 2016 07:28 PM UTC by Philip Stolz
**Last Updated:** Sun Apr 24, 2016 07:28 PM UTC
**Owner:** nobody

- [0001-FIXED-Behavior-for-note_on-velocity-0-note_off-in-al.patch](https://sourceforge.net/p/pure-data/patches/576/attachment/0001-FIXED-Behavior-for-note_on-velocity-0-note_off-in-al.patch) (1.5 kB; text/x-patch)

The ALSA implementation of putmidimess replaced "note on" messages with "note off" messages if their velocity=0.
This behavior isn't consistent with the OSS implementation.

This patch has removed the special treatment of "note_on",vel=0 messages from the ALSA implementation in s_midi_alsa.c. The patch also generates "note off" messages if they were in the output queue. 

REMARK: Currently there is no way to put "note off" messages to the output queue from a pd-patch. I would sugest to implement the special treatment of "note on" messages with vel=0 as an optional behavior of [noteout]. I could imagine two different modes of noteout: mode 1: vel=0 => "note on", vel=0; mode 2: vel=0 => "note off".


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