setNodeVolume/setNodeMute only send API requests; the nodes store
wasn't updated until the backend broadcast a graph change, so sliders
showed stale values. Now the store is updated immediately before
firing the API calls.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Snapshot node volumes and mutes when saving a profile; restore
them on load via setNodeVolume/setNodeMute for each matching node
- Fix hide rules to do exact case-insensitive match on display name
(alias/nick) instead of regex substring match on PW name, so
"Speaker" no longer accidentally hides "Gaming Speaker"
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Right-click any node → Rename to set a custom label. The alias is shown
in the node header and Properties dialog instead of the raw PipeWire name.
Leave the input blank (or press Reset) to revert to the PW name.
Aliases are stored in aliases: Record<string,string> inside the patchbay
state (keyed by PW node name, which is stable for hardware devices) and
persisted automatically with the rest of the patchbay config. Old save
files without an aliases key are handled gracefully via the ?? {} fallback.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Bug 1 - Mute unmute not sticking (G560 and others):
- Root cause: on_node_info was reading volume/mute from info->props which
contains static initial values only — NOT updated at runtime. When any
node info event fired, it overwrote the correct runtime state with stale
initial data, causing the unmute to revert on the next graph event.
- Fix: Subscribe nodes to SPA_PARAM_Props in addition to SPA_PARAM_Format.
Handle SPA_PARAM_Props in on_node_param to track volume (both SPA_PROP_volume
and SPA_PROP_channelVolumes averaged) and mute from the authoritative live
parameter stream. Remove stale volume/mute reads from on_node_info.
- Also fix mute detection in /api/mute: check "mute":true precisely instead
of searching for bare "true" anywhere in the body.
Bug 2 - Loading profiles does not work:
- loadProfile was only applying connections when already in "activated" mode.
Load now always applies the profile connections immediately.
Bug 3 - No option to update an existing profile:
- Add "Update" button in profile list that overwrites the profile with current
connections (calls saveProfile with the existing name).
- Clear the profile name input after "Save Current" succeeds.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Buffer Control:
- GET /api/quantum - reads current graph quantum via pw-metadata
- POST /api/quantum {quantum:N} - sets quantum via pw-metadata
- Toolbar dropdown with presets: 32, 64, 128, 256, 512, 1024, 2048, 4096
- Loads current quantum on startup
Text Selection Fix:
- Added user-select: none to wrap and canvas CSS
- Node text no longer gets selected when dragging
Backend:
- POST /api/create-null-sink {name} - loads null-sink module
- POST /api/create-loopback {name} - loads loopback module
- POST /api/unload-module {module_id} - unloads a module
- Fixed double-proxy-destroy crash in GraphEngine
- Graceful failure when module not available (no crash)
Frontend:
- + Add Device button in toolbar with dropdown menu
- Null Sink option (creates virtual audio output)
- Loopback Device option (creates paired input+output)
- Dropdown closes on outside click
Note: null-sink requires libpipewire-module-null-sink to be installed.
Loopback works on all PipeWire installations.
- Volume slider on every node (green bar, draggable)
- Mute toggle button (M/m) on every node
- Backend: read volume/mute from PipeWire node props
- Backend: POST /api/volume {node_id, volume} to set volume
- Backend: POST /api/mute {node_id, mute} to toggle mute
- Graph JSON includes volume and mute fields per node
- Slider supports drag-to-adjust with mouse
C++ backend with SSE streaming (reuses qpwgraph PipeWire callbacks).
Svelte frontend with custom SVG canvas for port-level connections.
Features:
- Live PipeWire graph via SSE
- Drag output->input port to connect
- Double-click or select+Delete to disconnect
- Node positions saved to localStorage
- Pan (drag bg) and zoom (scroll)
- Port type coloring (audio=green, midi=red, video=blue)
