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标题: RK3588摄像头v4l2取流测试失败 [打印本页]

作者: take_it 时间: 2022-11-25 10:35
标题: RK3588摄像头v4l2取流测试失败
通过v4l2-ctl对摄像头进行取流测试，但输出文件大小为0，没有保存任何数据。
使用SDK版本为：rk3588_repo_sdk_v1.0.2a.7z， Bundle：rk3588-v1.0.2a-to-v1.0.2b.7z； rk3588-v1.0.2b-to-v1.0.2c.7z
编译为BuildRoot系统和Debian系统测试结果相同。

测试命令如下：
v4l2-ctl -d /dev/video0 --set-fmt-video=width=640,height=480,pixelformat=NV12 --stream-mmap=3 --stream-to=/tmp/out2.yuv --stream-count=20 --stream-poll --verbose
输出结果：
VIDIOC_QUERYCAP: ok
VIDIOC_G_FMT: ok
VIDIOC_S_FMT: ok
Format Video Capture Multiplanar:
Width/Height    : 640/480
Pixel Format    : 'NV12' (Y/CbCr 4:2:0)
Field          : None
Number of planes  : 1
Flags          :
Colorspace       : Default
Transfer Function : Default
YCbCr/HSV Encoding: Default
Quantization    : Default
Plane 0          :
   Bytes per Line : 640
   Size Image    : 460800
VIDIOC_REQBUFS returned 0 (Success)
VIDIOC_QUERYBUF returned 0 (Success)
VIDIOC_QUERYBUF returned 0 (Success)
VIDIOC_QUERYBUF returned 0 (Success)
VIDIOC_QBUF returned 0 (Success)
VIDIOC_QBUF returned 0 (Success)
VIDIOC_QBUF returned 0 (Success)
VIDIOC_STREAMON returned 0 (Success)
cap dqbuf: 0 seq:    0 bytesused: 460800 ts: 3662.352325 delta: 3662352.325 ms (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    1 bytesused: 460800 ts: 3662.385671 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    2 bytesused: 460800 ts: 3662.418945 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    3 bytesused: 460800 ts: 3662.452362 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    4 bytesused: 460800 ts: 3662.485613 fps: 30.01 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    5 bytesused: 460800 ts: 3662.518964 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    6 bytesused: 460800 ts: 3662.552390 fps: 29.99 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    7 bytesused: 460800 ts: 3662.585610 fps: 30.01 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    8 bytesused: 460800 ts: 3662.618955 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    9 bytesused: 460800 ts: 3662.652361 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    10 bytesused: 460800 ts: 3662.685610 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    11 bytesused: 460800 ts: 3662.719061 fps: 29.99 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    12 bytesused: 460800 ts: 3662.752365 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    13 bytesused: 460800 ts: 3662.785607 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    14 bytesused: 460800 ts: 3662.818992 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    15 bytesused: 460800 ts: 3662.852359 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    16 bytesused: 460800 ts: 3662.885608 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 2 seq:    17 bytesused: 460800 ts: 3662.918945 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 0 seq:    18 bytesused: 460800 ts: 3662.952395 fps: 30.00 (ts-monotonic, ts-src-eof)
cap dqbuf: 1 seq:    19 bytesused: 460800 ts: 3662.985658 fps: 30.00 (ts-monotonic, ts-src-eof)

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作者: 板蓝根 时间: 2022-11-25 10:53
v4l2-utils 好像需要 1.16.5 之前的版本才能取得到流，你可以用 gstreamer 取一下流看看可不可以

作者: take_it 时间: 2022-11-25 11:11

板蓝根发表于 2022-11-25 10:53
v4l2-utils 好像需要 1.16.5 之前的版本才能取得到流，你可以用 gstreamer 取一下流看看可不可以

我试了gstreamer，命令如下：
firefly@firefly:~$ gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=800,height=600,framerate=30/1 ! kmssink

输出结果如下：
Setting pipeline to PAUSED ...
Using mplane plugin for capture
Pipeline is live and does not need PREROLL ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
ERROR: from element /GstPipeline:pipeline0/GstKMSSink:kmssink0: GStreamer encountered a general resource error.
Additional debug info:
../sys/kms/gstkmssink.c(1967): gst_kms_sink_show_frame (): /GstPipeline:pipeline0/GstKMSSink:kmssink0:
drmModeSetPlane failed: Invalid argument (22)
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
Execution ended after 0:00:01.193099748
Additional debug info:
../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
streaming stopped, reason error (-5)
Setting pipeline to NULL ...
Freeing pipeline ...

好像还是不行。
另外，我在Debian的固件中使用V4L2 TestBench工具，能够看到摄像头图像，也能够把图像保存到文件中。
那很奇怪，使用v4l2-ctl为什么不行？而且我自己写了一个通过v4l2的取流的程序，读取的buffer为空。

作者: 板蓝根 时间: 2022-12-1 11:35
kmssink 指定plane-id 或者用 waylandsink

作者: YSKM 时间: 2023-3-1 15:12
请问楼主问题解决了吗

作者: renshilong 时间: 2024-1-30 11:19
请问楼主问题是怎么解决的？

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