Trouble when starting fmp4streamer about fmp4streamer

[soyersoyer]

If you are using Bullseye, please read the Readme's Raspberry section

[jpelletier]

If you are using Bullseye, please read the Readme's Raspberry section

After enabling legacy support, I got this:
python fmp4streamer.py
Waiting for the first h264 frame...Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
self.run()
File "/home/slicer/Public/src/fmp4streamer-3.4.7/v4l2camera.py", line 298, in run
self.start_capturing()
File "/home/slicer/Public/src/fmp4streamer-3.4.7/v4l2camera.py", line 268, in start_capturing
self.capture_loop()
File "/home/slicer/Public/src/fmp4streamer-3.4.7/v4l2camera.py", line 244, in capture_loop
ioctl(self.fd, v4l2.VIDIOC_QBUF, buf)
OSError: [Errno 14] Bad address

[TobiasFriberg]

I'm getting a similar error

WARNING:root:Couldn't read fmp4streamer.conf, using default config
Waiting for the first h264 frame...Exception in thread Thread-1:
Traceback (most recent call last):
  File "/usr/lib/python3.9/threading.py", line 954, in _bootstrap_inner
    self.run()
  File "/home/pi/fmp4streamer-3.4.7/v4l2camera.py", line 298, in run
    self.start_capturing()
  File "/home/pi/fmp4streamer-3.4.7/v4l2camera.py", line 267, in start_capturing
    ioctl(self.fd, v4l2.VIDIOC_STREAMON, struct.pack('I', v4l2.V4L2_BUF_TYPE_VIDEO_CAPTURE))
OSError: [Errno 22] Invalid argument