mpv-player / mpv-player/mpv

Constant jitter spikes causing mistimed and delayed frame using display-resample

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#11,791 5 comments 3 reactions 0 assignees View on GitHub

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Dominant language
C
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Description

Important Information

Provide following Information:

Reproduction steps

launch mpv with the following arguments

mpv --no-config --video-sync=display-resample

The jitter is repetitive, causing sometimes mistimed frames or delayed frames or even dropped frames from the output.
http://0x0.st/HTs8.mp4

Expected behavior

Having no mistimed nor delayed frames.

Actual behavior

Constant jitter spikes that cause mistimed and delayed frames.

Log file

output.txt

Sample files

https://www.libde265.org/downloads-videos/

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the issue with mpv --no-config --video-sync=display-resample on the supplied sample video, then inspect output.txt for the reported jitter and frame timing behavior. Done means the repetitive jitter spikes no longer produce mistimed, delayed, or dropped frames.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
audio-video-rtc
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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