[Mon, 24 Jul 2006 17:55:17 -0400] Lee Revell <[EMAIL PROTECTED]> eut le bonheur d'_crire:
> Ugh. All I need to do is snoop note on, note off, and the note number. > But you're saying that 0x81 is sometimes part of a timestamp, and other > times it means note off on channel 1? Bytes you read, when decoding smf-like stream (which is to say with delta times in between) must be decoded differently whether you are reading an event or a delta time, yes > So you are saying my driver needs to have full knowledge of the MIDI > state machine in order to snoop note on and note off? I believe so. You also may have to care about other midi specific things to parse like -Running command: Command byte (the one with 1 on bit 7) may be ommited if it is the same as last one -"Note on" with velocity 0 is considered as "note off" (most of the time) 91 42 7f 81 30 91 41 3e 88 37 81 42 00 30 81 41 00 may be optimized as (-- is an ommited repeated "running" command byte) 91 42 7f 81 30 -- 41 3e 88 37 81 42 00 30 -- 41 00 or even 91 42 7f 81 30 -- 41 3e 88 37 -- 42 00 30 -- 41 00 -- Nipo <[EMAIL PROTECTED]>
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