Re: [PATCH 29/36] ALSA: seq: Automatic conversion of UMP events

On 19. 05. 23 11:31, Takashi Iwai wrote:

This patch enables the automatic conversion of UMP events from/to the legacy ALSA sequencer MIDI events. Also, as UMP itself has two different modes (MIDI 1.0 and MIDI 2.0), yet another converters between them are needed, too. Namely, we have conversions between the legacy and UMP like:

• seq legacy event -> seq UMP MIDI 1.0 event
• seq legacy event -> seq UMP MIDI 2.0 event
• seq UMP MIDI 1.0 event -> seq legacy event
• seq UMP MIDI 2.0 event -> seq legacy event

and the conversions between UMP MIDI 1.0 and 2.0 clients like:

• seq UMP MIDI 1.0 event -> seq UMP MIDI 2.0 event
• seq UMP MIDI 2.0 event -> seq UMP MIDI 1.0 event

The translation is per best-effort; some MIDI 2.0 specific events are ignored when translated to MIDI 1.0.

Signed-off-by: Takashi Iwai tiwai@suse.de

Reviewed-by: Jaroslav Kysela perex@perex.cz