Steam View

Watch any Steam Remote Play host on a rooted webOS 1-4 LG TV.

I built it for my Steam Frame's Spectator View, but it works with a PC or anything else running Steam.

How it works:

Protocol: ihslib (plume-fixes branch, which has session fixes master is still missing)
Video: H.264 straight to the TV's hardware decoder (LGNC DirectVideo, same path moonlight-tv uses)
Audio: Opus decoded to PCM, out over LGNC DirectAudio
UI: LVGL on SDL2 (the webosbrew backport)

Nothing gets installed on the host. The TV is just a Remote Play client.

Why not IHSplay?

I tried IHSplay first. It crashes on startup on webOS 2 (#29): the display init divides by a zero window size on the old Wayland stack.

The protocol code is fine, so this app reuses the same protocol library and just does its own simpler display layer: fixed 1280x720 software UI surface, video on the LGNC plane where it belongs.

Trying it on your PC

The host build is the full app with the TV decoder swapped for stubs. Same protocol, same UI, no picture (your PC has no LGNC decoder, so it just counts frames). Good for testing pairing:

cmake -B build-host -DCMAKE_BUILD_TYPE=Release .
cmake --build build-host
./build-host/steamview

or just double-click build-host/steamview.exe on Windows.

It finds Steam hosts on your LAN (your own PC's Steam shows up).
Pick one, press Enter. A 4-digit PIN pops up.
Type it into the Steam dialog on the host.
Accept the Remote Play prompt. The status line starts counting video/audio frames.

Pairing sticks around in .steamview-identity next to the exe, so Steam remembers the device.

Needs SDL2, SDL2_net, protobuf-c, mbedtls. CI fetches all of it.

Building the IPK

You need the webOS NDK (one time):

export TOOLCHAIN_FILE=/path/to/arm-webos-linux-gnueabi_sdk-buildroot/share/buildroot/toolchainfile.cmake
./scripts/build-webos.sh
# -> dist/com.kekko.steamview_<version>_arm.ipk

Then sideload the IPK however you like: Homebrew Channel, Dev Manager, or ares-install dist/*.ipk.

Using it

Host and TV on the same network, host awake.
Open Steam View on the TV. It lists what it finds.
Pick one, press OK, type the PIN into Steam on the host.
Accept the prompt on the host. Done, its screen is on your TV.

License

GPL-3.0-or-later (see LICENSE). LVGL is MIT, SDL2 and SDL_net are zlib, mbedtls is Apache-2.0, protobuf-c is BSD-2.

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