Posts made by bendraper

@Alex-Kushleyev Thanks for letting me know! I'll have to give it a try

@tom let me know if you don't this this is possible but I think the USB-C cable I was using may have killed it. I continued dev work on another mini I had and it started to do weird things like the camera I had connected was no longer recognized and it started to get into a reboot cycle. Switched cables and that other Mini now behaves fine.

@tom

@tom My power supply also seems to indicate it is pulling nearly 0 current when powered on

@tom I never ordered a power module but I've tried with a few different supplies now all set for 3.8V.

So I have this Voxl 2 Mini that I've been doing dev stuff with for weeks and this morning it seems it stopped working. LED D1 is green the whole time but DS2 only briefly flashes green once I give it power and then it will flash every time I plug or unplug a USB from the Voxl. It is not communicating with ADB and nothing is coming up on lsusb. I ran through the QDL process but still am having this issue. Any thoughts?

What carrier did you guys do testing with for the EM9291 modem? Their product page seems to suggest all of their carrier approvals are still pending.

@Alex-Kushleyev Sounds good thanks for clarifying. Also, it looks like you can use a hybrid CQP and CBR mode per the documentation, but when I use "cbr+cqp" in the camera server conf file, it does not seem to like it. Is this feature not available yet?

I'm looking at the camera server documentation and this is saying that H265 essentially requires twice the bandwidth that H264 does. Isn't that backwards? Isn't H265 more efficient at the cost of latency? @Alex-Kushleyev

@bendraper said in streamer default h265:

@Eric-Katzfey Yea I think that functionality may be broken though. If I try to do the inverse aspect ratio, it just kinda shrinks the stream as opposed to stretching it back out

It's also seemingly fixed in the daily builds of QGC... Oh well

@Eric-Katzfey Yea I think that functionality may be broken though. If I try to do the inverse aspect ratio, it just kinda shrinks the stream as opposed to stretching it back out

@Alex-Kushleyev This is great, much appreciated! Also regarding that squished stream in QGC, seems to only be a linux thing so probably not much to do about it right now.

@Alex-Kushleyev Awesome. On a different note, do you know why ffmpeg has no issue with the aspect ratio of the stream but in QGroundControl, the stream seems to be vertically squished? I would guess ffmpeg correctly makes some assumptions about the aspect ratio that voxl-streamer doesn't outwardly declare and maybe QGC doesn't make these assumptions?

@Alex-Kushleyev Incredible, it works! Thanks Alex

@Alex-Kushleyev it's probably just my gstreamer ignorance and it not being as simple to set up an h265 stream as swapping our h264 with h265

@Alex-Kushleyev Thanks for getting back. Here's our fork of voxl-streamer and the specific commit

As you can see, not much going on here. I just noticed how the 265 omx encoder object would be created but just unused when encoding a raw stream (using hires_small_grey in my tests which is RAW8).

When I try to connect to the stream, streamer gives the following

voxl2-mini:~$ voxl-streamer -i hires_small_grey -s -b 2000000 -p 554
Waiting for pipe hires_small_grey to appear
Found Pipe
detected following stats from pipe:
w: 1024 h: 768 fps: 30 format: RAW8
Stream available at rtsp://127.0.0.1:554/live
A new client rtsp://169.254.4.2:40732(null) has connected, total clients: 1
Camera server Connected
gbm_create_device(156): Info: backend name is: msm_drm
rtsp client disconnected, total clients: 0
no more rtsp clients, closing source pipe intentionally

and using ffmpeg to connect gives the following

ffplay version 4.4.2-0ubuntu0.22.04.1 Copyright (c) 2003-2021 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.2.0-19ubuntu1)
  configuration: --prefix=/usr --extra-version=0ubuntu0.22.04.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --enable-librsvg --enable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
  libavutil      56. 70.100 / 56. 70.100
  libavcodec     58.134.100 / 58.134.100
  libavformat    58. 76.100 / 58. 76.100
  libavdevice    58. 13.100 / 58. 13.100
  libavfilter     7.110.100 /  7.110.100
  libswscale      5.  9.100 /  5.  9.100
  libswresample   3.  9.100 /  3.  9.100
  libpostproc    55.  9.100 / 55.  9.100
[rtsp @ 0x74e358000cc0] method DESCRIBE failed: 503 Service Unavailable
rtsp://169.254.4.1:554/live: Server returned 5XX Server Error reply

It looks like if you are to use voxl-streamer to encode a RAW8 pipe, it will default to encoding it in h264. Is there a way to change this to 265? I tried recompiling the service and editing the pipeline.c file to use the 265 encoder where applicable (and changed other mentions of 264 to 265) but the stream fails when I try to start it. Is there a simpler way to achieve what I'm trying to do that I'm missing?

What are the differences between M0125 and M0151? I can't find any references to M0151 in the forums or technical docs.

@Vinny Extremely useful. Thanks Vinny!

@bendraper https://www.modalai.com/products/m0062-2

Specifically this one