Question / Help Crop only Stream Video 32:9 > 16:9

[letsbash]

Hello everyone,
I wonder if there is a trick to crop a 32:9 aspect ratio capture only for the stream to 16:9 and not for the record.

I got a big 49" screen and really love to capture 3840x1080 videos to the local 500mb/s ssd, but streaming on twitch is a bit of another story and gets pretty ugly with 32:9.
So I am looking for a kind of cheat code like this in ffmpeg -filter:v "crop=1920:1080:960:0" only for streaming.

I also tried to start 2x OBS instances at the same time but I failed to capture the same game content on both instances.

Any ideas?

 

[Jesse101]

No idea.

 

[UltraWideGames]

Hello everyone,
I wonder if there is a trick to crop a 32:9 aspect ratio capture only for the stream to 16:9 and not for the record.

I got a big 49" screen and really love to capture 3840x1080 videos to the local 500mb/s ssd, but streaming on twitch is a bit of another story and gets pretty ugly with 32:9.
So I am looking for a kind of cheat code like this in ffmpeg -filter:v "crop=1920:1080:960:0" only for streaming.

I also tried to start 2x OBS instances at the same time but I failed to capture the same game content on both instances.

Any ideas?

I am wondering the same thing. I have finally figured out that the 32:9 videos im seeing... werent streams. My original problem was I was trying to stream 32:9 which got the letterbox nocked out of it. So, if i can stream 16:9 and record 32:9 that would be grreat.

 

[carlmmii]

One instance of OBS has no ability to output at different aspect ratios. It can output a differently scaled version for the recording vs the stream, but that's it.

You will need two instances of OBS (the main installation, and a portable instance), as well as NDI.

Portable OBS:
- Set up to record just your game capture (3840x1080), along with whatever else you want for recording (audio, etc)
- Output NDI stream
- Perform recording on this instance

Main OBS:
- Include the NDI stream as a source
- Crop down for twitch stream (1920x1080)
- Include anything else you want for stream (overlays, extra audio, etc)
- Perform stream output on this instance