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4b07d54931
V4L2 and DRM choose different, incompatible ways to represent tiled/compressed etc. formats. While the later uses combinations of format fourccs and opaque, vendor/hardware specific modifiers, for the later every such combination is a distinct new format. Traditionally Gst implemented each of the V4L2 formats if needed. Given the large number of tiling and compression modes, this is quite work intensive - and often actually not needed. In many situations Gst just needs to pass buffers from V4L2 to DRM in the form of EGL, VK, Wayland or KMS. Thus implement a direct translation for some V4L2 formats to DRM ones, limited to the DMA_DRM API, allowing much quicker enablement of formats while requiring peers to use external implementations (usually Mesa or KMS) for tiling etc. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7355> |
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| .. | ||
| usb | ||
| drm_fourcc.h | ||
| media.h | ||
| types-compat.h | ||
| v4l2-common.h | ||
| v4l2-controls.h | ||
| videodev2.h | ||