Screenshare indicator module (or even privacy indicator)

[ErikReider]

I'd add this myself but I'm completely clueless on how this could be done.

Help is very appreciated! :)

Going through the output of pw-dump command and looking for any node with "media.class": "Stream/Input/Video" looks promising until I realized that it appeared when the camera was used (which also would be a neat addition).

I've narrowed it down to these interfaces:

  {
    "id": 120,
    "type": "PipeWire:Interface:Client",
    "version": 3,
    "permissions": [ "r", "w", "x", "m" ],
    "info": {
      "change-mask": [ "props" ],
      "props": {
        "pipewire.protocol": "protocol-native",
        "pipewire.sec.pid": 2024,
        "pipewire.sec.uid": 1000,
        "pipewire.sec.gid": 1000,
        "pipewire.sec.label": "hex: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",
        "module.id": 2,
        "object.id": 120,
        "object.serial": 872,
        "pipewire.access.portal.app_id": "org.mozilla.firefox",
        "pipewire.access.portal.media_roles": "",
        "log.level": 0,
        "cpu.max-align": 32,
        "default.clock.rate": 48000,
        "default.clock.quantum": 1024,
        "default.clock.min-quantum": 32,
        "default.clock.max-quantum": 8192,
        "default.clock.quantum-limit": 8192,
        "default.video.width": 640,
        "default.video.height": 480,
        "default.video.rate.num": 25,
        "default.video.rate.denom": 1,
        "clock.power-of-two-quantum": true,
        "link.max-buffers": 64,
        "mem.warn-mlock": false,
        "mem.allow-mlock": true,
        "settings.check-quantum": false,
        "settings.check-rate": false,
        "application.name": "firefox-bin",
        "application.process.binary": "firefox-bin",
        "application.language": "en_US.UTF-8",
        "application.process.id": 2,
        "application.process.user": "erikreider",
        "application.process.host": "Erik-Arch-Desktop",
        "window.x11.display": ":0",
        "core.version": "0.3.35",
        "core.name": "pipewire-erikreider-2",
        "pipewire.access": "portal",
        "default.clock.allowed-rates": "[ 48000 ]",
        "application.process.session-id": 3
      }
    }
  },
  {
    "id": 122,
    "type": "PipeWire:Interface:Node",
    "version": 3,
    "permissions": [ "r", "w", "x", "m" ],
    "info": {
      "max-input-ports": 1,
      "max-output-ports": 0,
      "change-mask": [ "input-ports", "output-ports", "state", "props", "params" ],
      "n-input-ports": 1,
      "n-output-ports": 0,
      "state": "running",
      "error": null,
      "props": {
        "pipewire.client.reuse": 1,
        "media.name": "webrtc-consume-stream",
        "stream.is-live": true,
        "node.name": "firefox-bin",
        "node.target": 121,
        "node.autoconnect": true,
        "media.class": "Stream/Input/Video",
        "client.id": 120,
        "object.id": 122,
        "object.serial": 873
      },
      "params": {
        "Props": [ ]
      }
    }
  },
  {
    "id": 119,
    "type": "PipeWire:Interface:Port",
    "version": 3,
    "permissions": [ "r", "w", "x", "m" ],
    "info": {
      "direction": "input",
      "change-mask": [ "props", "params" ],
      "props": {
        "port.id": 0,
        "port.direction": "in",
        "port.name": "in_0",
        "port.alias": "firefox-bin:in_0",
        "node.id": 122,
        "object.id": 119,
        "object.serial": 874
      },
      "params": {
        "EnumFormat": [
          {
            "mediaType": "video",
            "mediaSubtype": "raw",
            "format": {
              "default": "BGRx",
              "alt1": "RGBx",
              "alt2": "RGBA",
              "alt3": "BGRx",
              "alt4": "BGRA"
            },
            "size": { "default": { "width": 1, "height": 1 }, "min": { "width": 1, "height": 1 }, "max": { "width": 4294967295, "height": 4294967295 } }
          }
        ],
        "Meta": [
          {
            "type": "Busy",
            "size": 8
          },
          {
            "type": "Header",
            "size": 32
          },
          {
            "type": "VideoCrop",
            "size": 16
          }
        ],
        "IO": [
          {
            "id": "Buffers",
            "size": 8
          }
        ],
        "Format": [
          {
            "mediaType": "video",
            "mediaSubtype": "raw",
            "format": "RGBx",
            "size": { "width": 2560, "height": 1440 },
            "framerate": { "num": 0, "denom": 1 },
            "maxFramerate": { "num": 60, "denom": 1 }
          }
        ],
        "Buffers": [
          {
            "dataType": {
              "default": 6
            },
            "size": 14745600,
            "stride": 10240,
            "buffers": { "default": 8, "min": 1, "max": 32 }
          }
        ],
        "Latency": [ ]
      }
    }
  },

It would also be nice to be able to see when legacy X11 applications capture other X11 windows and help with this would also be very much appreciated. :)

If this were to be a Privacy Indicator, the microphone side of it would be pretty "easy" on my part due to SwayAudioIdleInhibit. A location indicator could be possible with Geoclue i guess?

[BoomerangNebula]

"media.name": "webrtc-consume-stream" jumps off the page.

https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API

[anarcat]

I believe this has become more urgent now that Firefox has removed its own sharing indicator, see:

https://floss.social/@rmader/110753816659396916

and:

https://bugzilla.mozilla.org/show_bug.cgi?id=1628431#c27

[hvhaugwitz]

FWIW I use the following command to get a sharing indication:

pw-dump | jq -r 'map(.info?.props?) | map(select(.["media.name"]? == "webrtc-consume-stream")) | map(.["stream.is-live"]? == true | "LIVE") | .[]?'

The output is LIVE if a screen is shared and empty otherwise.

[ErikReider]

FWIW I use the following command to get a sharing indication:

pw-dump | jq -r 'map(.info?.props?) | map(select(.["media.name"]? == "webrtc-consume-stream")) | map(.["stream.is-live"]? == true | "LIVE") | .[]?'

The output is LIVE if a screen is shared and empty otherwise.

Thanks! This seems to work better:
pw-dump | jq -r 'map(.info?.props?) | map(select(.["node.name"]? == "xdg-desktop-portal-wlr")) | map(.["stream.is-live"]? == true | "LIVE") | .[]?'