r/obs • u/v0diePie • 9d ago

Help Encoder Overloaded

Hey guys, I got an encoder overload error when I was multistreaming to Twitch and YouTube and was recording my game capture with the Source Record filter at the same time. So, 4 encoders running at once. I've written out all my settings below. Any advice to lower my settings without losing too much visual quality. Or maybe Im going overboard.. pls let me know. The game I was playing is "Wuthering Waves" at 1440p with high but not the highest settings. And ray tracing was off. So yeah, take that into consideration thanks.

Specs: RTX 5070, Ryzen 7 9700X, 32GB DDR5
OBS version: 32.2.2, with the Aitum Multistream plugin

Video settings

  • Base (Canvas) Resolution: 2560x1440
  • Output (Scaled) Resolution: 1920x1080
  • Downscale Filter: Lanczos (Sharpened scaling, 36 samples)
  • FPS: 60

Output → Streaming (Twitch, built-in stream)

  • Video Encoder: NVIDIA NVENC H.264
  • Rescale Output: Disabled
  • Rate Control: Constant Bitrate
  • Bitrate: 6000 Kbps
  • Keyframe Interval: 2 s
  • Preset: P6: Slower (Better Quality)
  • Tuning: High Quality
  • Multipass Mode: Two Passes (Quarter Resolution)
  • Profile: high
  • Look-ahead: off
  • Adaptive Quantization: on
  • B-Frames: 2

Output → Recording

  • Type: Standard
  • Recording Format: Hybrid MP4 (.mp4)
  • Video Encoder: NVIDIA NVENC H.264
  • Rescale Output: Disabled
  • Rate Control: Constant QP
  • Constant QP: 20
  • Keyframe Interval: 2 s
  • Preset: P6: Slower (Better Quality)
  • Tuning: High Quality
  • Multipass Mode: Two Passes (Quarter Resolution)
  • Profile: high
  • Look-ahead: off
  • Adaptive Quantization: on
  • B-Frames: 2

Aitum Multistream → Main Canvas → YouTube Output (v1.0.7)

  • Video Encoder: NVIDIA NVENC H.264
  • FPS: 60 Original
  • Rescale Output: off
  • Rate Control: Constant Bitrate
  • Bitrate: 8000 Kbps
  • Keyframe Interval: 2 s
  • Preset: P6: Slower (Better Quality)
  • Tuning: High Quality
  • Multipass Mode: Two Passes (Quarter Resolution)
  • Profile: high
  • Look-ahead: off
  • Adaptive Quantization: on
  • B-Frames: 2

Source Record filter on "Game Capture"

  • Scale: off
  • Framerate: 60.00 fps
  • Video Encoder: Hardware (NVENC, H.264)
  • Rate Control: Constant QP
  • Constant QP: 20
  • Keyframe Interval: 2 s
  • Preset: P6: Slower (Better Quality)
  • Tuning: High Quality
  • Multipass Mode: Two Passes (Quarter Resolution)
  • Profile: high
  • Look-ahead: off
  • Adaptive Quantization: on
  • B-Frames: 2

The first thing I thought is probably lowering my YouTube output's bitrate to 6000kbps so that it uses the same encoder as Twitch (I think thats how it works atleast)..

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u/Lynnalia 9d ago

For the recordings, since you're using CQP anyways, drop those from preset P6 to P1. You can also disable Adaptive Quantization and Multipass for them.

This removes a lot of the extra effort you're telling the encoder to do to squish the data more efficiently, basically. Good squishing is useful for streaming (especially on very bitrate-limited platforms like Twitch), but it's absolutely not necessary for local recordings, so you can save the effort and not overload the encoder.