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IDProjectCategoryView StatusLast Update
0012385MMW v4Synchronizationpublic2014-12-12 23:54
Reporterrusty Assigned To 
Status closedResolutionfixed 
Product Version4.1.6 
Target Version4.1.6Fixed in Version4.1.6 
Summary0012385: Auto-conversion fails for OGGs in some cases
DescriptionI haven't been able to figure out when this occurs (i.e. is it specific to conversion to OGG?), but I've noticed that auto-conversion of some tracks to OGG is failing.

When a Wi-Fi sync operation occurs, the failure is graceful--at the end of the sync operation, an error dialog appears indicating that 59 tracks failed to convert.

When a USB sync operation is done, though, the failure is problematic--the sync operation just get's stuck at a particular track and doesn't end.

I suspect that this behavior is new to MMA / MMW since I never noticed synchronization getting stuck in this manner before.

See the associated log on the ftp server--at file 89/193 (The Silencers - Unconscious) the sync status bar stops progressing and the sync operation appears to be stuck. Terminating the thread doesn't work, either.
TagsNo tags attached.
Fixed in build1721


related to 0012079 closedLudek Conversion from OGG, MPC, APE fails (regression) 
related to 0012340 closedrusty Optimize USB sync with Androids 



2014-11-24 04:06


sync_auto-conversion_failure.jpg (198,106 bytes)   
sync_auto-conversion_failure.jpg (198,106 bytes)   


2014-11-24 16:21

administrator   ~0041123

I tested MMW 4.1.5 (Wi-Fi Sync of MMA to and synchronization proceeded flawlessly.

This leads me to conclude that 4.1.6 has a regression re. conversion of tracks, and that the regression manifests itself as a graceful failure for Wi-Fi sync, but as a complete sync failure for USB sync.


2014-11-24 18:17

developer   ~0041127

Last edited: 2014-11-24 18:48

I analyzed the logs and there seem to be combination of two problems:

1) MTP freeze during file copy (USB sync), it frozen on
C:\Users\Russell\AppData\Local\Temp\AED7.jpg -> \Music\The Silencers\Seconds of pleasure\albumart.jpg
for 5 minutes and then it failed with error code: 802A0006
I haven't found the code in the list, but by searching the internet I found that it could be a HW error code:

And then it totally frozen when trying to access \Music\The Silencers\Seconds of pleasure\12 Unconscious.mp3 on the device via MTP, I guess that also Windows Explorer was frozen if you would try to access the device.

I am trying to find a way how to eliminate the random MTP freezes, but I haven't been successful so far. It is quite general problem and often happens when using delete/rename operations on file/folder, see

2) You indicated a failed OGG conversion, I don't see the failure in your log, but I reprocuded similar failure once today, studing further how to replicate...


2014-11-24 20:36

developer   ~0041129

Last edited: 2014-11-24 20:40

Re 2) I was able to replicate again, it does not seem to be a regression, but rather a threading issue in OGG plugin. i.e. if there are more OGG files to be converted at once (starting in the same millisecond), in my case there were 3 OGGs to be converted at once and the corresponding lines in the debug log were:

00001710 5.85470390 [6380] OGG: Starting analysis.
00001711 5.85473776 [6380] OGG: Starting analysis.
00001712 5.85475826 [6380] OGG: Starting analysis.
00001713 5.86320400 [6380] An error occured during file conversion: Access violation at address 00000000. Write of address 00000000

And the result was that onle 2 of the 3 files were converted to OGG successfully.


2014-11-24 23:29

developer   ~0041132

Last edited: 2014-11-25 00:19

1) was hopefully workarounded as part of 0012340

The original issue of failed auto-conversion to OGG (item 2) is fixed in build


2014-11-25 21:10

developer   ~0041148

Last edited: 2014-11-25 21:12

2) Verified 1721 simultaniously sync only 72 OGG files


2014-12-12 23:54

developer   ~0041455

Verified 1724