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dbserver: name 0x3007 as set filter on/off, not media info #94

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Merged
vynulldev merged 1 commit into from
Oct 16, 2026
Merged

dbserver: name 0x3007 as set filter on/off, not media info #94

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21 changes: 16 additions & 5 deletions dbserver/handler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -219,8 +219,8 @@ func (h *Handler) Handle(msg *proto.DBMessage) []*proto.DBMessage {
switch msg.Type {
case proto.DBMsgSetup:
return h.handleSetup(msg)
case 0x3007: // mount/media info
return h.handleMediaInfo(msg)
case 0x3007: // set filter on/off (CMD_SET_FILTER_ONOFF)
return h.handleSetFilterOnOff(msg)
case proto.DBMsgRootMenu: // 0x1000
return h.handleRootMenu(msg)
case 0x3e03: // NXS2 extension
Expand Down Expand Up @@ -508,9 +508,20 @@ func (h *Handler) handleSetup(msg *proto.DBMessage) []*proto.DBMessage {
}}
}

func (h *Handler) handleMediaInfo(msg *proto.DBMessage) []*proto.DBMessage {
dlog.Debugf("dbserver: media info (0x3007)")
// Respond: success with [echo_type, 0] — matches the CDJ
// handleSetFilterOnOff handles 0x3007, which decks send before each root
// menu request. It is the first of rekordbox's filter commands (0x3007 to
// 0x3407 in 0x100 steps, dispatched by PSvDBMain::OnFilterCmd), and XDJ-RR
// firmware sends it from dbcl_SetFilterOnOff (link-spec's static analysis
// in docs/LINK_EXPORT_REQUEST_VOCABULARY.md and
// data/static-analysis/xdj-rr-client-navigation.json). We keep no filter
// state, so it is only acknowledged. rekordbox's reply has not been
// captured; this plain success is what decks have always accepted from us.
func (h *Handler) handleSetFilterOnOff(msg *proto.DBMessage) []*proto.DBMessage {
argVals := make([]string, len(msg.Args))
for i, a := range msg.Args {
argVals[i] = fmt.Sprintf("0x%08x", a.Int())
}
dlog.Debugf("dbserver: set filter on/off (0x3007) args=%v", argVals)
return []*proto.DBMessage{{
TxID: msg.TxID,
Type: proto.DBMsgSuccess,
Expand Down
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