How to live recording in an MKV and play it at the same time (ok) but at current live recording position when pushing play (or -minus x sec)?

[Veda]

Hello Guys,

Maybe the title is not really clear, I explain:

I am able with OBS to record my PC Desktop in an MKV (video encoder : NVENC AV1, audio encoder: FFmpeg AAC, CQP 15, P6, High etc..)

I use Universal Media Server (UMS) to Stream/Transcode on my PS3 in order to watch this MKV on my videoprojector.
The MKV record my PC Desktop so I could watch a local movie, internet videos, everything from PC etc...on my PS3

It works great and the quality is stunning.

My only "problem" is to find a solution to see the "live record". When I launch the MKV (via UMS) on PS3, I see the beginning of the recording (even if I launch the OBS record 1H ago). I would like to see the " current live position" record/stream when I launch the MKV.

I know it sounds like the "Streaming feature" instead of the "Recording feature" but UMS give really bad results when I have created RTMP local server (with Monaserver) and live stream with OBS. The quality is really bad and big delay with audio (UMS works only with Mencoder in my case)

So the question: is there a way to record MKV like a Live Stream buffer in order to see the current "direct live".

Hope someone will have interesting ideas.

Regards.

 

[AaronD]

You can't just scrub the player to an arbitrary time in the file, and play from there?

Anyway, this seems to me like an XY Problem:

Home - The XY Problem

xyproblem.info

Hardware solutions are generally more reliable than software.
If you only want to watch source device A on display device B, why not run a wire for that?
If you then want to watch source device B on display device B, run a wire for that too.
If you don't want to rearrange wires all the time, put a switch in between.
Etc.

 

[Veda]

"You can't just scrub the player to an arbitrary time in the file, and play from there?"

If I do that, it doesn't work everytime but everytime the sound is delay (UMS pb, this is transcoded. PS3 can't read by itself MKV so no full control)

I got :

From PC : 10m ethernet wire cable to PS3,
From PS3: 1m optic cable to home cinema amplifier; 10m HDMI cable to videoprojector

Changing that to skip PS3 with 10m optic cable + 15m HDMI cable only from PC to amplifier and videoprojector will be a mess in the room, i would like to avoid that and it's a bit overkill to change that (or buy an dedicated HTPC) just for "direct live" mkv :)

Was just looking around for this "direct live stream" MKV if it was possible from OBS (or sort of workaround)