Radxa 8m 219 gstreamer resolution

ROCK 3 Series ZERO 3W/3E
1

Im using a Radxa Zero 3w with a Radxa 8m 219 camera attached.

Overlay for 8m is enabled.

If i use the test cmd

gst-launch-1.0 v4l2src num-buffers=512 device=/dev/video0 io-mode=4 ! videoconvert ! video/x-raw, format=NV12, width=1920, height=1080, framerate=30/1 ! tee name=t ! queue ! mpph264enc ! queue ! h264parse ! mpegtsmux ! filesink location=/home/radxa/file.name.mp4

I get a video saved .

If i try to get 4k output ( as advertised by Radxa ) with

gst-launch-1.0 v4l2src num-buffers=512 device=/dev/video0 io-mode=4 ! videoconvert ! video/x-raw, format=NV12, width=3820, height=2464, framerate=30/1 ! tee name=t ! queue ! mpph264enc ! queue ! h264parse ! mpegtsmux ! filesink location=/home/radxa/file.name.mp4

I get

Setting pipeline to PLAYING …
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Internal data stream error.
New clock: GstSystemClock
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 0:00:00.002009663
Setting pipeline to NULL …
Freeing pipeline …

Any help or advice would be greatly appreciated.

Thanks

2

Can you post a download link for the software you are using?

You could try changing the width=3820, height=2464 parameter in the command to width=3840, height=2160 and see if you still have problems!

3

I’m testing with ffmpeg to youtube

ffmpeg -re -f v4l2 -video_size 384
0x2160 -i /dev/video0 -c:v h264 -preset veryfast -b:v 8000k -maxrate 8000k -bufsize 16000k -
rc_mode 0 -level 30 -pix_fmt yuv420p -f flv “rtmp://a.rtmp.youtube.com/live2/…”

gives me about 0.2 fps

[video4linux2,v4l2 @ 0xaaaafd953100] ioctl(VIDIOC_G_INPUT): Inappropriate ioctl for device
[video4linux2,v4l2 @ 0xaaaafd953100] ioctl(VIDIOC_G_PARM): Inappropriate ioctl for device
[video4linux2,v4l2 @ 0xaaaafd953100] Time per frame unknown

If i use your suggested resolution it hangs here, 4k will continue…

Duration: N/A, start: 29145.357268, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 3840x2160, 1000k tbr, 1000k tbn
[out#0/flv @ 0xaaab0cd6c6b0] Codec AVOption preset (Set the encoding preset (cf. x264 --fullhelp)) has not been used for any stream. The most likely reason is either wrong type (e.g. a video option with no video streams) or that it is a private option of some encoder which was not actually used for any stream.
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (h264_rkmpp_encoder))
Press [q] to stop, [?] for help
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Picture format is yuv420p.
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Rate Control mode is set to VBR
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Bitrate Target/Min/Max is set to 8000000/500000/8500000
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Profile is set to HIGH
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] 8x8 Transform is enabled
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Level is set to 30
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Coder is set to CABAC
[h264_rkmpp_encoder @ 0xaaab0cd6d1d0] Quality Min/Max is set to 50%(Quant=30) / 100%(Quant=10)

4

@Mitchell , through further experimentation I have found that 4k will only give me 15fps, if I follow this tutorial

https://docs.radxa.com/en/zero/zero3/app-development/rtsp?target=ffmpeg

and drop the input resolution to 1920x1080 ffmpeg tells me i get 30 / 60 fps depending on what my ouput fps is set to .

Thanks

5

Hi, I think you are not using the GPU encoder.
You should check wich ones have hardware accel.
mpph264enc dont have

6

@fdalto, you may well be right . I thought the mpp encoders used hardware. I’ll look further into it. Thank you.

7

ffmpeg HW Encoders:

 V..... h264_rkmpp           Rockchip MPP (Media Process Platform) H264 encoder (codec h264)
 V..... hevc_rkmpp           Rockchip MPP (Media Process Platform) HEVC encoder (codec hevc)
 V..... mjpeg_rkmpp          Rockchip MPP (Media Process Platform) MJPEG encoder (codec mjpeg)
8

I also added -hwaccel rkmpp before my camera input to use hardencoder there as well.

9

Have you tried to run apt update && apt upgrade ? Radxa released new IQ files in the beginning of September and they contain 4k resolution. The previous version didn’t contain it so 4k didn’t work.

10

Hi, can you help me with Radxa 3W mpp && rockchip media please? What is OS version for Radxa are you using? I’m starting with Debian last release and it have not support of mpph264enc.