General discussion • Connecting RPi cam v1 with Raspberry Pi CM4 using waveshare Nano baseboard (CM4-NANO-A)

I am trying to connect my RPi cam with RPi CM4 and waveshare nano baseboard. I updated the config file:
```
# For more options and information see
# http://rptl.io/configtxt
# Some settings may impact device functionality. See link above for details

# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on

# Enable audio (loads snd_bcm2835)
dtparam=audio=on

# Additional overlays and parameters are documented
# /boot/firmware/overlays/README

# Automatically load overlays for detected cameras
# camera_auto_detect=1

# Automatically load overlays for detected DSI displays
display_auto_detect=1

# Automatically load initramfs files, if found
auto_initramfs=1

# Enable DRM VC4 V3D driver
dtoverlay=vc4-kms-v3d
max_framebuffers=2

# Don't have the firmware create an initial video= setting in cmdline.txt.
# Use the kernel's default instead.
disable_fw_kms_setup=1

# Run in 64-bit mode
arm_64bit=1

# Disable compensation for displays with overscan
disable_overscan=1

# Run as fast as firmware / board allows
arm_boost=1

[cm4]
# Enable host mode on the 2711 built-in XHCI USB controller.
# This line should be removed if the legacy DWC2 controller is required
# (e.g. for USB device mode) or if USB support is not required.
otg_mode=1

[cm5]
dtoverlay=dwc2,dr_mode=host

[all]
dtoverlay=ov5647,cam0
gpu_mem=128
start_x=1
```

Libcamera commands are working perfectly but the ffmpeg commands are giving errors.
Basically, I am trying to use legacy camera for ffmpeg but no success
I listed my camera devices and /dev/video0 is listed under unicam. Here it is:
```
bcm2835-codec-decode (platform:bcm2835-codec):
/dev/video10
/dev/video11
/dev/video12
/dev/video18
/dev/video31
/dev/media3

bcm2835-isp (platform:bcm2835-isp):
/dev/video13
/dev/video14
/dev/video15
/dev/video16
/dev/video20
/dev/video21
/dev/video22
/dev/video23
/dev/media1
/dev/media2

unicam (platform:fe800000.csi):
/dev/video0
/dev/media4

rpivid (platform:rpivid):
/dev/video19
/dev/media0
```

Here is the ffmpeg error:
```
[video4linux2,v4l2 @ 0x558c9e5490] ioctl(VIDIOC_G_PARM): Inappropriate ioctl for device
[video4linux2,v4l2 @ 0x558c9e5490] Time per frame unknown
[video4linux2,v4l2 @ 0x558c9e5490] ioctl(VIDIOC_STREAMON): Invalid argument
/dev/video0: Invalid argument
```
Ps: I am really a newbie with RPi so really sorry for any mistakes and kindly let me know if any other config details are needed to debug my error.

Statistics: Posted by Astraa — Sun Mar 16, 2025 10:00 am

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