How run cast_shell binary

[Jacek Skiba]

Hello, 

Based on documentation cast_shell should be run easily:  https://chromium.googlesource.com/chromium/src/+/HEAD/docs/linux/cast_build_instructions.md#Run-cast_shell

However this returns error:

ERROR:chromecast/cast_core/runtime/browser/runtime_service_impl.cc:63] Runtime id must be specified in command line with: --cast-core-runtime-id

With those switches cast_shell is started:
out/cast/cast_shell \
    --cast-core-runtime-id=1 \
    --runtime-service-path="localhost:9000" \
    --cast-mojo-broker-path=unix:/tmp/cast_mojo_broker \
    --ozone-platform=x11 \

    https://google.com

However in this state cast_shell is by default is idle state. I see browser, gou and zygote processes, but renderer process is not created, so we have only a black screen.

How can I inject URL into cast?
From my understanding Cast runtime service is responsible for app launch. I need to send some gRPC request for it?

[mark a. foltz]

Make sure your GN args are set up for building this target.

https://chromium.googlesource.com/chromium/src/+/HEAD/docs/linux/cast_build_instructions.md#setting-up-the-build

This target is only supported on LInux.  Try passing --ozone-platform=wayland (you might be on Wayland).

This is just building a single-window renderer that will navigate to the URL on the commandline.  Building an equivalent to a Chromecast product isn't possible from code in Chromium.

m.

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[Jacek Skiba]

Wayland platform is not supported by cast_shell target:

out/cast/cast_shell \
    --cast-core-runtime-id=9 \
    --runtime-service-path="localhost:9000" \

    --cast-mojo-broker-path=unix:/tmp/cast_mojo_broker \
   --ozone-platform=wayland \

https://google.com

[523471:523471:0112/224950.956734:FATAL:ui/ozone/platform_selection.cc:46] Invalid ozone platform: wayland
#0 0x58530dd1ce72 base::debug::CollectStackTrace()
#1 0x58530dd05531 base::debug::StackTrace::StackTrace()
#2 0x58530dc02b63 logging::LogMessage::Flush()

https://github.com/chromium/chromium/blob/main/ui/ozone/platform_selection.cc#L46

Those are supported by cast_shell platforms:

gen/ui/ozone/platform_list.cc : const char* kPlatformNames[] = {
                                           "headless",  // kPlatformHeadless
                                           "cast",  // kPlatformCast
                                           "x11",  // kPlatformX11

For x11 and headless renderer process is not created (browser is in suspend state), where for cast I'm getting a crash from Viz:

[524579:524589:0112/230245.567337:FATAL:components/viz/service/display_embedder/output_surface_provider_impl.cc:167] Check failed: surface_ozone.

@Mark A. Foltz: should I create a chromium issue for it?