Two July fixes that were never merged: rpm FFmpeg modules + the released-pointer double cursor #71

Merged

enricobuehler merged 2 commits from worktree-july-rpm-and-cursor into main 2026-08-06 13:13:36 +00:00

Conversation 0 Commits 2 Files Changed 3

+42 -12

2 Commits

Author	SHA1	Message	Date
enricobuehler	2a67c02f7e	fix(clients/cursor): the host must not composite a pointer under a released client's own cursor ... Streaming a KDE desktop showed two cursors: the one the user was moving, and a second one sitting underneath it that never moved. It was not KDE's — KWin 6.7.3 in cursor-as-metadata mode calls `setRenderCursor(false)` on every recorded buffer and hands the cursor item to an exclusive `ItemTreeView`, so `shouldRenderItem()` skips it and no pointer is ever painted into that stream. It was ours. Both clients declared the render model as `captured && desktop`, so ANY released pointer handed compositing back to the host. But releasing does not remove the local cursor — it restores the ordinary window arrow over the video. The host then blends its own pointer in underneath, and since a released client forwards no motion, nothing drives it: it stays frozen wherever the host pointer was last left. Caught live on the host with the render-model diag: cursor diag: client_draws=false blended=true live=Some((-1, 622, true)) x = -1 — parked on the streamed output's left edge, unchanged sample after sample, while the user moved their own cursor around freely. Engaging capture flipped it to `client_draws=true blended=false` and the duplicate vanished, which is why it only looked "stuck when not dragging": dragging means engaged, and engaged was the one state that behaved. The host may composite ONLY while the client holds a grabbed, hidden pointer — the capture model, engaged — which is the single state with no local cursor on screen. Released now counts as "the client draws it": the host stops compositing and keeps forwarding shape/state over the channel (the forwarder ticks on this side of the flip), so re-engaging is seamless and the client's cached shape stays warm.	2026-08-06 15:03:11 +02:00
enricobuehler	79ee308a7a	build(rpm): declare all seven FFmpeg pkg-config modules, not three ... `ffmpeg-next` is pulled with default features, so `ffmpeg-sys-next`'s build script pkg-config-probes codec/device/filter/format/util/resampling/scaling and panics on the first one missing. The spec named three. RPM Fusion's `ffmpeg-devel` ships all seven in one package, which hid it. On a host where those three instead resolve to Fedora's split `libav*-free-devel` packages, `dnf builddep` installs exactly three and the build dies in a build script: The system library `libavfilter` required by crate `ffmpeg-sys-next` was not found.	2026-08-06 15:03:05 +02:00