pipewire-v4l2: Implement more ioctls

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Collect all video/source nodes and enumerate their formats. We use this
to return the supported formats and to check if a format is supported.

Use evenfd as the even we return from open. Make the eventfd readable
when we have a new buffer ready.

Connect a stream when setting a format. Collect buffers. Implement
mmap/munmap on the buffer memory. Implement queue and dequeue of buffers.

This is enough to make the webcam test work in firefox.

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This commit is contained in:

Wim Taymans 2021-10-08 09:13:03 +02:00

parent e68fd36f90

commit b466fe67dd

1 changed files with 916 additions and 65 deletions

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pipewire-v4l2/src/pipewire-v4l2.c

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