View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0019243 | MMW 5 | Playback | public | 2022-07-05 14:52 | 2022-10-11 13:44 |
| Reporter | rusty | Assigned To | |||
| Priority | immediate | Severity | major | Reproducibility | always |
| Status | closed | Resolution | fixed | ||
| Product Version | 5.0.4 | ||||
| Target Version | 5.0.4 | Fixed in Version | 5.0.4 | ||
| Summary | 0019243: Performance/Playback issue when playing m4a tracks (regression) | ||||
| Description | Playing MP3 tracks results in one instance (the instance using the most memory) of MediaMonkeyEngine.exe using 1-3% CPU (with MM minimized) BUT playing m4a tracks results in that instance of MediaMonkeyEngine.exe using gradually increasing % of CPU. The longer the track, the more the CPU% grows--for a 7m track it increases to about 25%. In some cases, as the CPU utilization increases, audio artifacts are introduced. Note: - Replicated with MM 5.0.4.2655/6 with Codec pack 3.0.6 and 3.0.7 - CPU% grows consistently, but audio artifacts only occur on some occasions (I suspect that it depends on available CPU cycles) - When playback stops or tracks switch, memory utilization for the instance of MediaMonkeyEngine.exe goes back down | ||||
| Tags | No tags attached. | ||||
| Fixed in build | 2657 | ||||
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I've confirmed that this is a regression in 5.0.4: - It doesn't occur with 5.0.3 regular build + 3.0.6 codec pack - It occurs with 5.0.4 regular build + 3.0.7 codec pack AND 5.0.4 debug + 3.0.6 codec pack Also: - it occurs even if the codec pack isn't installed - it doesn't occur with OGG, FLAC, or MP3 files |
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It seems to be regression in in_mfaudio plugin, problem disappears after seeking in the file. The problem started with build 2654. |
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Fixed in build 2657. It was regression related to some specific media files, mostly M4A, but could happen probably to any format decoded by in_mfaudio plugin (AAC, M4A, MP3, WMA). |
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Verified that the issue no longer occurs on the long m4a files with which I originally replicated the issue. Leaving the bug 'resolved' for Peke to verify other formats. |
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Verified 2670 Tested on Audiobooks up to 10h and number of smaller <3h other formats past 3 days. |
