Chromecast CMA backend

[Jacek Skiba]

Hello,

We want to port Chromecast cast_shell target on QEMU platform. 

After analyzing available CMA (Chromecast Media API) backends, it looks like we need to implement it from scratch: 

https://source.chromium.org/chromium/chromium/src/+/main:chromecast/media/cma/backend/

For example:

• Desktop backend is only a stub
  
• Alsa backend is audio only, and forces chromium to be in headless mode

Why to this day chromecast don't have generic (ffmpeg based) backend for Audio and Video on Linux platform?

If we would implement above backend, then upstream will consider accepting this CL?

[mark a. foltz]

On Tue, Mar 5, 2024 at 1:43 PM Jacek Skiba <jaceks...@gmail.com> wrote:

Hello,

We want to port Chromecast cast_shell target on QEMU platform. 

After analyzing available CMA (Chromecast Media API) backends, it looks like we need to implement it from scratch: 

https://source.chromium.org/chromium/chromium/src/+/main:chromecast/media/cma/backend/

For example:

• Desktop backend is only a stub
  
• Alsa backend is audio only, and forces chromium to be in headless mode

Why to this day chromecast don't have generic (ffmpeg based) backend for Audio and Video on Linux platform?

There isn't a need for it.  If you want to render Chromecast apps on Linux, you can use the default ffmpeg-based video stack and the cast_receiver component.

If we would implement above backend, then upstream will consider accepting this CL?

No.

m

. 

 

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