since jeston xavier use v4l2 as video codec framework, but it’s a linux kernel module, so I think we can found the v4l2 video codec source code, but i can’t found it in jetson open source pacakge, anybody can give me a answer about this ? thanks.
Hi,
Some code is not open source and built into a so file:
/usr/lib/aarch64-linux-gnu/tegra/libtegrav4l2.so
The open source code is in
/usr/src/jetson_multimedia_api
for the user space code(in libtegrav4l2.so), it can be source-closed. but for the kernel module, i think it should be open source(we can found v4l2 camera driver at drivers/media/platform/tegra/camera）， but we can’t found any source code with video codec with v4l2 kernel space code, can you show me where is the source path ?
Hi,
Most code is in libtegrav4l2.so, and other so files in userspace. In kernel, there are device nodes in
/sys/class/13e10000.host1x/
But not much code.
OK, thank you! one more question, For /sys/class/13e10000.host1x/ device node, where is the kernel source code to register this device ?
Hi,
Please check the file:
kernel/nvidia/drivers/video/tegra/host/t194/t194.c
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