[Bug] Video is freezing
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- Dominant language
- C
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Description
mpv Information
mpv v0.41.0-330-gd12f2ce19 Copyright © 2000-2026 mpv/MPlayer/mplayer2 projects
built on Mar 15 2026 17:03:13
libplacebo version: v7.362.0 (v7.360.0-11-g33b5dfa-dirty)
FFmpeg version: N-123498-g482395f83
FFmpeg library versions:
libavcodec 62.29.100
libavdevice 62.4.100
libavfilter 11.15.101
libavformat 62.13.101
libavutil 60.29.100
libswresample 6.4.100
libswscale 9.7.100
Other Information
- Windows version: Microsoft Windows [Version 10.0.26200.8037]
- GPU model, driver and version:
Get-CimInstance Win32_VideoController | Select-Object Name, DriverVersion, DriverDate
Name DriverVersion DriverDate
---- ------------- ----------
AMD Radeon(TM) Graphics 32.0.21043.1005 2/18/2026 05:30:00 AM
- Source of mpv: https://github.com/zhongfly/mpv-winbuild/releases/download/2026-03-15-d12f2ce/mpv-x86_64-v3-20260315-git-d12f2ce.7z
- Latest known working version: NA
- Issue started after the following happened: NA
Reproduction Steps
Video file link: https://pixeldrain.com/u/jrrZBVTe
Around timestamp 21 seconds, the video freezes, but the audio plays fine.
Same with plays fine with other players, such as MPC-HC, which means the video file is fine.
[ 21.060][v][file] stream level seek from 3765626 to 91764275
[ 21.060][v][file] stream level seek from 91895347 to 3639759
[ 21.060][v][file] stream level seek from 3770831 to 91764618
[ 21.060][v][file] stream level seek from 91895690 to 3640679
[ 21.061][v][file] stream level seek from 3771751 to 91764945
[ 21.083][d][ao/wasapi] Thread Pause
[ 21.083][v][cplayer] Enter buffering (buffer went from 100% -> 0%) [0.000000s].
[ 21.088][v][lavf] EOF reached.
[ 21.088][v][cplayer] End buffering (waited 0.005592 secs) [335.317333s].
[ 21.088][d][ao/wasapi] Thread Unpause
[ 21.089][v][vf] filter input EOF
[ 21.089][v][vf] filter output EOF
[ 21.089][d][cplayer] video EOF (status=4)
[ 21.089][d][vo/gpu-next] Render queue underrun.
[ 21.093][d][cplayer] video EOF (status=4)
[ 21.095][d][cplayer] video EOF (status=4)
[ 21.095][d][cplayer] video EOF (status=4)
[ 21.100][d][cplayer] video EOF (status=4)
[ 21.114][d][cplayer] video EOF (status=4)
[ 21.114][d][cplayer] video EOF (status=4)
Expected Behavior
The video should not freeze at around the 21-second timestamp.
Actual Behavior
Around 21 seconds into the video, it freezes, but the audio plays fine.
Log File
Sample Files
Video file link: https://pixeldrain.com/u/jrrZBVTe
I carefully read all instruction and confirm that I did the following:
- I tested and confirmed that the issue exists with the latest release version or newer.
- I provided all required information including system and mpv version.
- I produced the log file with the exact same set of files, parameters, and conditions used in "Reproduction Steps", with the addition of
--log-file=output.txt. - I produced the log file while the behaviors described in "Actual Behavior" were actively observed.
- I attached the full, untruncated log file.
- I attached the backtrace in the case of a crash.
Contributor guide
No contributing guide indexed for this repository
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the linked sample in mpv on Windows and inspect output.txt around the 21-second timestamp, where buffering, EOF, and render-queue underrun are reported. Compare playback with the stated conditions and trace the relevant video playback path; done means the sample no longer freezes while audio continues.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100