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obsproject / obs-studio

OBS Studio - Free and open source software for live streaming and screen recording
https://obsproject.com
GNU General Public License v2.0
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Using WHIP for live streaming on Twitch, the video is shaking #11237

Closed CaptainTeemo closed 1 week ago

CaptainTeemo commented 1 week ago

Operating System Info

macOS 14

Other OS

No response

OBS Studio Version

30.2.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/6W10MRhtKl4riwFM

OBS Studio Crash Log URL

No response

Expected Behavior

The video is fluent.

Current Behavior

The video is shaking.

Steps to Reproduce

  1. Use whip protocol for streaming, tested on Twitch here
  2. Select the encoder (VT H264 Software/Hardware with bframe checked, x264 with option "bframes=2")
  3. Start streaming and view on platform webpage.
  4. The video is shaking.

Anything else we should know?

  1. It's probably the b-frame issue.
  2. If we uncheck the "Use B-Frames" option on videotoolbox encoder, the video is good.
  3. Also, the issue occurs on windows when selecting x264 encoder with option "bframes=2".
  4. The RTMPS works good.

The abnormal video is like: https://github.com/user-attachments/assets/8fd7aaff-3770-43b2-a84e-c323694c5fc3

tt2468 commented 1 week ago

B-frames are in most cases considered incompatible with WebRTC. Don't use b-frames with WHIP.