@jugg

coolpi@coolpi:~$ sudo apt install qtmultimedia5-dev [sudo] password for coolpi: Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: libllvm15 Use 'sudo apt autoremove' to remove it. The following additional packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev uuid-dev Suggested packages: libgirepository1.0-dev libglib2.0-doc The following NEW packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev qtmultimedia5-dev uuid-dev 0 upgraded, 18 newly installed, 0 to remove and 0 not upgraded. Need to get 4799 kB of archives. After this operation, 23.8 MB of additional disk space will be used. Do you want to continue? [Y/n] coolpi@coolpi:~$ sudo apt install qtmultimedia5-dev Reading package lists... Done Building dependency tree... Done Reading state information... Done The following package was automatically installed and is no longer required: libllvm15 Use 'sudo apt autoremove' to remove it. The following additional packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev uuid-dev Suggested packages: libgirepository1.0-dev libglib2.0-doc The following NEW packages will be installed: libblkid-dev libglib2.0-dev libglib2.0-dev-bin libmount-dev libpcre16-3 libpcre2-dev libpcre2-posix3 libpcre3-dev libpcre32-3 libpcrecpp0v5 libqt5multimedia5 libqt5multimediagsttools5 libqt5multimediaquick5 libqt5multimediawidgets5 libselinux1-dev libsepol-dev qtmultimedia5-dev uuid-dev 0 upgraded, 18 newly installed, 0 to remove and 0 not upgraded. Need to get 4799 kB of archives. After this operation, 23.8 MB of additional disk space will be used. Do you want to continue? [Y/n]

@ccjjww1222 V11版本是板载天线。V10是外置天线，你的是哪个版本

@大法师 是权限问题，修改/media/coolpi文件夹的用户为coolpi就可以了

@george 试了不能用

gst-launch-1.0 v4l2src device=/dev/video11 ! image/jpeg, width=1920, height=1080, framerate=25/1 ! jpegparse ! mppjpegdec ! kmssink plane-id=88
Setting pipeline to PAUSED ...
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: Could not get allowed GstCaps of device
Additional debug info:
../sys/kms/gstkmssink.c(1183): gst_kms_sink_start (): /GstPipeline:pipeline0/GstKMSSink:kmssink0:
driver does not provide mode settings configuration
ERROR: pipeline doesn't want to preroll.
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: GStreamer error: state change failed and some element failed to post a proper error message with the reason for the failure.
Additional debug info:
../libs/gst/base/gstbasesink.c(5878): gst_base_sink_change_state (): /GstPipeline:pipeline0/GstKMSSink:kmssink0:
Failed to start
ERROR: pipeline doesn't want to preroll.
Failed to set pipeline to PAUSED.
Setting pipeline to NULL ...
Freeing pipeline ...

可以通过了，就因为文件路径存在空格

@jack_admin 👍

@george
gstramer的硬件解码插件叫什么 只有openh264dec ?
Screenshot from 2023-03-16 15-21-23.png

@george
上面那个命令末尾添加sync=false 就正常了

@大法师 Hi again, can you please check in a basic README to that fedora repo? I am not able to fork it because there are no commits.

the good news is that the 20230303 download has solved the pip3 install problem and i was able to install opencv as well. It is running on a usb stick at the moment. should this issue be closed?

2)the format commands are not working as shown:

ubuntu@coolpi:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 0B 0 disk
sdb 8:16 1 0B 0 disk
mmcblk0 179:0 0 58.2G 0 disk
├─mmcblk0p1 179:1 0 300M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 57.9G 0 part /
mmcblk0boot0 179:32 0 4M 1 disk
mmcblk0boot1 179:64 0 4M 1 disk
zram0 254:0 0 0B 0 disk

the tf chip is sda and sdb upon insertion via a usb adapter. the coolpi does not recognized the chip via the onboard tf card slot.

ubuntu@coolpi:~$ sudo wipefs /dev/sda
ubuntu@coolpi:~$ sudo wipefs /dev/sdb
ubuntu@coolpi:~$ sudo wipefs -a -f /dev/sda
ubuntu@coolpi:~$ sudo wipefs -a -f /dev/sdb
ubuntu@coolpi:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 1 0B 0 disk
sdb 8:16 1 0B 0 disk
mmcblk0 179:0 0 58.2G 0 disk
├─mmcblk0p1 179:1 0 300M 0 part /boot/firmware
└─mmcblk0p2 179:2 0 57.9G 0 part /
mmcblk0boot0 179:32 0 4M 1 disk
mmcblk0boot1 179:64 0 4M 1 disk
zram0 254:0 0 0B 0 disk

@jugg 这个建议不错，需要做这类的参考文档

@allen
示例操作更改标识
sudo e2label /dev/mmcblk0p2 emmc-rootfs

@george 有这样的文档已经很不错了 感谢

@george 好的，不过能稍微再具体点嘛，或者有相关的帖子嘛

@ccjjww1222

Cool Pi 4 Model B用户手册V1.1.pdf

e7303cc9-0108-4906-bbcf-de6249d48181-1676012765810.png

@xws

有ubuntu 20.04 server版本

ae42e5c0-bdb1-4d63-bd3f-b52613339b04-1675905876822.png

@xws

刷机两种方式都支持，主板的pwr按钮是系统开机、关机键。（注意电源适配器使用5V/2A及以上）

https://www.cool-pi.com/topic/126/coolpi-4b-镜像固件离线刷机方法

528d2082-9916-4a63-94f1-3d0a264a94db-1675825279396.png

https://www.cool-pi.com/topic/127/coolpi-4b-镜像固件在线刷机方法

3883e729-1824-47b2-8c15-3e833139c804-1675825309559.png

Cool Pi 4 Model B用户手册V1.1.pdf

@顾真牛 @大法师 感谢你们的帮助🤓

@大法师 收到，大佬