View Bug Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0002568 | DCP-o-matic | Bugs | public | 2023-06-21 02:00 | 2024-04-17 08:15 |
| Reporter | mhm | Assigned To | carl | ||
| Priority | urgent | Severity | major | Reproducibility | always |
| Status | acknowledged | Resolution | open | ||
| Product Version | 2.16.59 | ||||
| Target Version | 2.16.x | ||||
| Summary | 0002568: A/V sync problems in DoM Player | ||||
| Description | I am having A/V sync problems with the DoM player on all DCPs I try. The version I am using is 2.16.59 git d860d9de91 on a Mac mini M1, 2020 running macOS Ventura 13.4. DoM player was installed from the homebrew repository using: $ brew install dcp-o-matic-player The sync problems persists even if lowering the decoded resolution. When trying playing back with ffmpeg and mpv, the problem is not there, A/V is in sync: $ ffmpeg -lowres 2 -ss 00:00:00 -r 25 -i <j2c-file>.mxf -ss 00:00:00 -i <pcm-file>.mxf -ac: 2 -c:v h264 -f avi - | mpv - (this specific DCP is in 25 fps and with entrypoint 0 in the CPL, but the result is the same for other DCPs I've tested) | ||||
| Tags | player | ||||
| Branch | |||||
| Estimated weeks required | |||||
| Estimated work required | Undecided | ||||
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Can you estimate roughly how far out of sync it is? Does picture lead sound or the other way round? |
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Also, is the sync error constant? |
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The audio seems to come approx 0,5 seconds before the video, and this is consistent, yes. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2023-06-21 02:00 | mhm | New Bug | |
| 2023-06-21 20:41 | carl | Assigned To | => carl |
| 2023-06-21 20:41 | carl | Status | new => feedback |
| 2023-06-21 20:41 | carl | Note Added: 0005772 | |
| 2023-06-21 20:42 | carl | Note Added: 0005773 | |
| 2023-06-21 21:58 | mhm | Note Added: 0005775 | |
| 2023-06-21 21:58 | mhm | Status | feedback => assigned |
| 2023-06-22 17:12 | carl | Priority | normal => urgent |
| 2023-06-22 17:12 | carl | Severity | minor => major |
| 2023-06-22 17:12 | carl | Target Version | => 2.16.x |
| 2023-06-22 17:12 | carl | Estimated work required | => Undecided |
| 2024-01-03 00:16 | carl | Status | assigned => acknowledged |
| 2024-02-16 09:01 | carl | Tag Attached: player |
