ZoneMinder Forums

Apologies if this is a daft question but in the documentation under viewing events there is mp4 playback shown. My event is also an mp4 file but I have "The video could not be loaded, ... format is not supported".

I have v1.36.32 installed on ubuntu 23.04.

How do I get the MP4 to play when viewing an event?

The capture is from a web cam but as it has saved an mp4 file I would expect to be able to view it. Any help for this newbie would be great.
Thanks.

Are you encoding to mp4? Check that you are saving to an h264, not h265.

I had the settings set to auto in the Monitor Storage tab.

I assumed that mp4 is the format of the stream but I suppose recoding is only a small processor hit as it is only saving on each alert.

I changed outputcodec to h264
if I select encoder as :
libx264 - I get a blank event playback.
h264 and the other options - work ok except...

When I view the event first time it plays ok, however if I press play after than it plays at a very high speed, it completes in a few frame <0.5s. Any pointers on that would be ok.

The playback rate doesn't do anything different I always get a super fast playback after the first go.

I'm still experimenting on how I want to set this up but as the capture card I had isn't working with ubuntu 23 I may resort to a few more local cams.

I notice that when setting to h264 it is not actually saving video but a lot of jpeg files. I have the storage Save JPEGs disabled.

I only get video files when set to auto and they are mp4 but if I set the codec in the event playback to MJPEG it will play it once and after that it will not play gain using the playback controls.

If your camera sends an RTSP h264 stream, just use pass through and don't encode on your system.