@veye_xumm

是的, 在PC Ubuntu 或 STM32MP157C-DK2 板OpenSTLinux, 两者都失败了

使用在Ubuntu下, 系统可以检测摄像机设备，但它不能播放视频, 相机或驱动程序是否有问题？

谢谢

ffplay /dev/video0
ffplay version 3.4.8-0ubuntu0.2 Copyright (c) 2003-2020 the FFmpeg developers
built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0
nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0

============================================================================

sudo v4l2-ctl -d /dev/video0 --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : CS-USB-IMX307: UVC Camera
Bus info : usb-0000:02:03.0-1
Driver version: 4.18.20
Capabilities : 0x84A00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/360
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 1280
Size Image : 460800
Colorspace : Default
Transfer Function : Default (maps to Rec. 709)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 360
Default : Left 0, Top 0, Width 640, Height 360
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 360
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 360
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
brightness 0x00980900 (int) : min=0 max=100 step=1 default=50 value=50
contrast 0x00980901 (int) : min=0 max=100 step=1 default=50 value=50
saturation 0x00980902 (int) : min=0 max=100 step=1 default=50 value=50
hue 0x00980903 (int) : min=0 max=100 step=1 default=50 value=50
error 5 getting ctrl White Balance Temperature, Auto