CB Stuttering Problem

[KFERMercer]

This is probably a problem due to CB backend update. This update will cause more stuttering than before.

I’ve tried many solutions on the local branch, but none have worked, including separating the video and audio recordings.

I believe other similar CB recording tools have encountered this problem as well. If anyone has a solution, please let me know.

See also: lossless1024/StreaMonitor#342 (comment)

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2026-04-09 UPDATE:

Based on lossless1024/StreaMonitor#342 (comment) , I've implemented a new branch (https://github.com/KFERMercer/ctbcap/tree/n_m3u8dl-re) that uses https://github.com/nilaoda/N_m3u8DL-RE for recording. It will automatically enable when N_m3u8DL-RE is in your $PATH:

sh -c "$(curl -sL https://raw.githubusercontent.com/KFERMercer/ctbcap/refs/heads/n_m3u8dl-re/ctbcap)" @ -v

For Docker use, it needs to download https://raw.githubusercontent.com/KFERMercer/ctbcap/refs/heads/n_m3u8dl-re/ctbcap and https://github.com/nilaoda/N_m3u8DL-RE/releases/latest (musl build) manually, then mount them into the container:

chmod +x ctbcap N_m3u8DL-RE

• Docker CLI:

  -v </path/to/ctbcap>:/usr/bin/ctbcap \
  -v </path/to/N_m3u8DL-RE>:/usr/bin/N_m3u8DL-RE

• Docker Compose:

    volumes:
      - </path/to/ctbcap>:/usr/bin/ctbcap
      - </path/to/N_m3u8DL-RE>:/usr/bin/N_m3u8DL-RE

It works very well. But since this solution introduces additional dependency (https://github.com/nilaoda/N_m3u8DL-RE), I will always keep this as a temporary solution.

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2026-04-11 UPDATE:

If you're having audio sync issue, try N_M3U8DL_NO_FFMPEG_PIPE=1.

[KFERMercer]

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