RPi5 / RPi4 + H265 gstreamer pipeline?

[piotr-defendeye]

Hi! I'm trying to set up a working pipeline for raspberrypi 5 or raspberrypi 4 (I have both, can use whichever is better for the task). When I'm receiving my h265 stream with FPVue app or the radxa image and it works fine. When I'm trying to run it on RPi 4 / RPi 5, I'm getting awful silver/gray artifacts all over the video.

Here's the pipelines that I've tried:

gst-launch-1.0 udpsrc port=5600 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H265' ! rtph265depay ! h265parse config-interval=-1 ! video/x-h265, stream-format="byte-stream" ! autovideosink sync=false

gst-launch-1.0 udpsrc port=5600 caps='application/x-rtp, media=(string)video, encoding-name(string)H265' ! rtph265depay ! avdec_h265 ! clockoverlay valignment=bottom ! autovideosink

Here's a pipeline that successfully got rid of the silver/gray artifacts all over the image, however, with this one the delay increases tremendously with each second of the stream running. After several seconds the delay reaches 30+ seconds:

gst-launch-1.0 udpsrc port=5600 caps='application/x-rtp, media=(string)video, encoding-name(string)H265' ! rtpjitterbuffer ! rtph265depay ! avdec_h265 ! clockoverlay valignment=bottom ! autovideosink

Does anyone have any reliable pipeline for H265 on Pi 4 or Pi 5?
Thanks!

[svpcom]

try:

gst-launch-1.0 udpsrc port=5600 caps='application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H265' ! rtph265depay ! h265parse config-interval=1 ! avdec_h265 ! autovideosink sync=false

but it may be slow due to SW h265 decoder. Try to found accelerated H265 decoder for RPI5. Or use rockchip-based boards (preferred) like radxa zero 3W/E or Orange PI5

[Glitchmin]

Hi, so nice to see thread with a similar problem to mine! I have an issue with transcoding h265 into h264 for my appsink on RPi5 - I use a similar pipeline, it works with software only encoding/transcoding however - barely. I had to decrease quality in a few places to make this work and sometimes delays pile up to 3-4 seconds. Do you have any experience how to set up hw encoding on RPi5? Or maybe you have some ideas what to change in the pipeline?

udpsrc port=5600 caps="application/x-rtp,media=video,encoding-name=H265" ! queue leaky=downstream max-size-time=0 max-size-buffers=0 max-size-bytes=0 ! rtph265depay ! h265parse config-interval=1 ! avdec_h265 ! x264enc bitrate=2048 speed-preset=ultrafast tune=zerolatency key-int-max=10 bframes=0 threads=4 ! video/x-h264,stream-format=byte-stream  ! queue leaky=downstream max-size-time=0 max-size-buffers=0 max-size-bytes=0 ! appsink name=appsink sync=false drop=true max-buffers=6`

[svpcom]

RPI5 doesn't have h264 hw acceleration. If you want both h264/265 then use rockchip based boards (like orange pi 5). But why do you need 265 -> 264 transcoding?

[Glitchmin]

No but I was hoping to use hw decoding of h265 to then encode it with software to h264. I want to show the stream in a browser window (using local html server) and as far as I know most of the browsers don't support h265 for this

[svpcom]

What do you use as h265 video source? If it is ip-camera then you can configure it to provide h264 stream

[Glitchmin]

It is a drone transmitting over wfb and I'd want to stay with h265

[Glitchmin]

I also have a Raspberry Pi 4 at hand if you think it will be a better option 😅