@xingzhan2012 声卡选到耳机输出
Posts made by george
-
RE: Type c power port
@lej40 said in Type c power port:
Is the the type-c PD port also a USB-c data port
Sorry,This port is used for power supply and has no data connection.
-
RE: 是否可以 3顆 18650 並聯輸出電到 typeC USB 充電孔?
@tonyone0902 如下图所示,板子的BOTTOM面有测试点,可以焊接外部电源。
机器本身不具备电量侦测功能,可以外加库仑计通过I2C接口。 -
RE: 是否可以 3顆 18650 並聯輸出電到 typeC USB 充電孔?
@tonyone0902 最低输入电压5V,所以并联是不行的,串联12V从TYPEC输入没有问题。
-
CM5-EVB Commissioning Description
-
Product image
-
All interface functions have been debugged and are currently undergoing performance optimization.
-
It is expected to be sold normally in early April.
-
-
RE: 官网源码不支持树莓派官方最新摄像头IMX477R和IMX708
@xingzhan2012 摄像头的调试周期会比较长,做AI部分对摄像头像素要求不会太高,可以考虑先使用USB接口的摄像头模组。
-
RE: Cool Pi 4B 如何使用GPIO啊,树莓派的HQ Camera如何使用呢?
@xingzhan2012 摄像头可以使用gstreamer。默认的镜像里边已经支持。
USB摄像头预览,参数根据自己设备的情况修改:gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! kmssink plane-id=88
摄像头编码:
gst-launch-1.0 v4l2src device=/dev/video11 ! video/x-raw,format=NV12 ! mpph264enc ! h264parse ! filesink location=1.h264 -e
注意:默认的mipi摄像头对应的video11节点,USB摄像头对应的video20.
-
RE: 双4K usb摄像头
@jugg QT调用gstreamer的例子网上有很多,QT官方也有教程。先尝试一下。注意KMSSINK虽然性能比较好,但是会独占图层。开发的时候注意下。
-
RE: Coolpi 4B ubuntu support
gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=3840, height=2160, framerate=30/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true sync=false
-
RE: Ubuntu kernel upgrades
@sushruth The 6. x kernel version has been processed internally and is expected to be released in the second quarter.Thank you for your support.
-
RE: Coolpi 4B ubuntu support
@jugg 不好意思,手上目前没有4K的设备,要晚一点才能测试。你可以尝试修改如下配置:
/etc/profile.d/gst.sh
默认的最大分辨率改为你目前sensor的最大分辨率。
export GST_V4L2SRC_MAX_RESOLUTION=3840x2160 -
RE: Coolpi 4B ubuntu support
@jugg 我这边测试0306的固件也是正常的。两路1080P/25FPS。
gst-launch-1.0 v4l2src device=/dev/video20 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true gst-launch-1.0 v4l2src device=/dev/video22 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! videoconvert ! fpsdisplaysink sync=false signal-fps-measurements=true