User 604

A simple command like "gst-launch-1.0 pylonsrc ! fakesink" (to probe list of installed cameras, as suggested here: https://github.com/basler/gst-plugin-pylon#getting-started ) took me 6 min!

$ gst-launch-1.0 v4l2src device=/dev/video0 ! video/x-raw,format=NV12,width=640,height=480 ! videoconvert ! autovideosink Setting pipeline to PAUSED ... No protocol specified No protocol specified arm_release_ver of this libmali is 'r18p0-01rel0', rk_so_ver is '4'.Using mplane plugin for capture Pipeline is live and does not need PREROLL ... Got context from element 'autovideosink0': gst.gl.GLDisplay=context, gst.gl.GLDisplay=(GstGLDisplay)"\(GstGLDisplayGBM\)\ gldisplaygbm0"; Pipeline is PREROLLED ... Setting pipeline to PLAYING ... New clock: GstSystemClock ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Failed to allocate required memory. Additional debug info: ../sys/v4l2/gstv4l2src.c(700): gst_v4l2src_decide_allocation (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Buffer pool activation failed ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error. Additional debug info: ../libs/gst/base/gstbasesrc.c(3127): gst_base_src_loop (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: streaming stopped, reason not-negotiated (-4) Execution ended after 0:00:00.038114558 Setting pipeline to NULL ... Freeing pipeline ... The command completed immediately.

4 Basler USB3 Vision cameras are connected, but during our testing, we only started gs-launch-1.0 using the camera [0] and [1]: [0]: 23298703 acA2440-35um [1]: 23299426 acA2440-35um [2]: 23844311 daA2500-14um [3]: 40120759 daA3840-45um We use the official power adapter that comes with Tinker Board 2s.

Hi, Just got my new Tinker Board 2S and installed the Debian 11 image (v3.0.6-20230627) on the emmc. All seems to be working. I need to connect 4x Basler USB3 cameras using the USB A. Since 2S has 3 USB A ports, I used a USB A to USB C adapter for the 4th camera. Tinker Board doc says the USB C port is OTG. Do I need to change any configuration to disable OTG for my use case? I tried gstreamer plugin (https://github.com/basler/gst-plugin-pylon) to capture from the cameras, but everything seems extremely slow. A simple command line "gst-launch-1.0 pylonsrc ! fakesink" even takes a long time, feels like hanging. Any thoughts?