ELAN 7.1 lagging on Win11

Hello,

I’m trying to help a lab group resolve their issue with ELAN lagging/freezing on their lab computers while trying to annotate 1hr long videos.

We found a workaround where switching view modes and switching back to Annotation view for the performance to be better.

Below is the contents of an example log file I obtained:

Jun 04, 2026 12:57:55 PM mpi.eudico.client.annotator.ELAN main
INFO: 

@ELAN Launched

Jun 04, 2026 12:57:55 PM mpi.eudico.client.annotator.ELAN main
INFO: ELAN 7.1
Java home: 	C:\Users\Public\ELAN\runtime
Java version: 	26
Runtime: 	26+35-2893
OS name: 	Windows 11
OS version: 	10.0
OS arch.: 	amd64
User language: 	en
User home: 	C:\Users\jlweiner
User dir: 	C:\Users\Public\ELAN
File encoding: 	UTF-8
Classpath: 	C:\Users\Public\ELAN\app\elan-7.1.jar;C:\Users\Public\ELAN\app\activation-1.1.1.jar;C:\Users\Public\ELAN\app\annot-search-lib-1.8.jar;C:\Users\Public\ELAN\app\annot-tools-1.3.jar;C:\Users\Public\ELAN\app\annotation-schema-1.0.jar;C:\Users\Public\ELAN\app\CJKV-0.3.jar;C:\Users\Public\ELAN\app\commons-codec-1.11.jar;C:\Users\Public\ELAN\app\commons-logging-1.2.jar;C:\Users\Public\ELAN\app\extensions\analyzer-gloss-0.7.jar;C:\Users\Public\ELAN\app\extensions\annotyzer-lexicon-0.9-compound.jar;C:\Users\Public\ELAN\app\extensions\annotyzer-whitespace-split-0.9.jar;C:\Users\Public\ELAN\app\extensions\hecate-ext-1.3\hecate-1.3.jar;C:\Users\Public\ELAN\app\extensions\signbank-ext-0.0.7\signbank-0.0.7.jar;C:\Users\Public\ELAN\app\extensions\webmaus-ext-1.6\maus-1.6.jar;C:\Users\Public\ELAN\app\extensions\whisper-ext-1.2\whisper-1.2.jar;C:\Users\Public\ELAN\app\gim-0.4.jar;C:\Users\Public\ELAN\app\guk-0.7.jar;C:\Users\Public\ELAN\app\help-7.1.jar;C:\Users\Public\ELAN\app\hsqldb-2.7.2.jar;C:\Users\Public\ELAN\app\httpclient-4.5.13.jar;C:\Users\Public\ELAN\app\httpcore-4.4.14.jar;C:\Users\Public\ELAN\app\hunspell-2.1.2.jar;C:\Users\Public\ELAN\app\IPA-0.4.jar;C:\Users\Public\ELAN\app\javafx-base-18.0.1-win.jar;C:\Users\Public\ELAN\app\javafx-base-18.0.1.jar;C:\Users\Public\ELAN\app\javafx-controls-18.0.1-win.jar;C:\Users\Public\ELAN\app\javafx-controls-18.0.1.jar;C:\Users\Public\ELAN\app\javafx-graphics-18.0.1-win.jar;C:\Users\Public\ELAN\app\javafx-graphics-18.0.1.jar;C:\Users\Public\ELAN\app\javafx-media-18.0.1-win.jar;C:\Users\Public\ELAN\app\javafx-media-18.0.1.jar;C:\Users\Public\ELAN\app\javafx-swing-18.0.1-win.jar;C:\Users\Public\ELAN\app\javafx-swing-18.0.1.jar;C:\Users\Public\ELAN\app\javax.activation-api-1.2.0.jar;C:\Users\Public\ELAN\app\jaxb-api-2.3.1.jar;C:\Users\Public\ELAN\app\jaxb-core-2.3.0.1.jar;C:\Users\Public\ELAN\app\jaxb-impl-2.3.0.1.jar;C:\Users\Public\ELAN\app\jhall-2.0.05.jar;C:\Users\Public\ELAN\app\jlfgr-1.0.jar;C:\Users\Public\ELAN\app\jna-5.12.1.jar;C:\Users\Public\ELAN\app\jna-platform-5.12.1.jar;C:\Users\Public\ELAN\app\json-20160212.jar;C:\Users\Public\ELAN\app\lexan-api-1.4.jar;C:\Users\Public\ELAN\app\lexiconcomponent-2.1.jar;C:\Users\Public\ELAN\app\mfsearch-1.8.jar;C:\Users\Public\ELAN\app\staccato-1.0.0.jar;C:\Users\Public\ELAN\app\vlcj-4.2.0.jar;C:\Users\Public\ELAN\app\vlcj-natives-4.1.0.jar;C:\Users\Public\ELAN\app\xalan-2.4.1.jar;C:\Users\Public\ELAN\app\xercesImpl-2.11.0.jar
Library path: 	C:\Users\Public\ELAN\app/nativelib
Display info:
	Screen 1 - isDefault:true, w:1680, h:1050, bitDepth:32
	Main screen resolution:96 (w:1680, h:1050)

Jun 04, 2026 12:57:55 PM mpi.eudico.client.annotator.prefs.PreferencesReader parse
INFO: Reading preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 12:57:55 PM mpi.eudico.client.annotator.ELAN initPlatformPreferences
INFO: Using the Cross Platform L&F: javax.swing.plaf.metal.MetalLookAndFeel
External updater thread started 
Jun 04, 2026 12:57:57 PM java.util.prefs.WindowsPreferences <init>
WARNING: Could not open/create prefs root node Software\JavaSoft\Prefs at root 0xffffffff80000002. Windows RegCreateKeyEx(...) returned error code 5.
Jun 04, 2026 12:57:57 PM java.util.prefs.WindowsPreferences WindowsRegOpenKey1
WARNING: Trying to recreate Windows registry node Software\JavaSoft\Prefs at root 0xffffffff80000002.
Jun 04, 2026 12:57:57 PM java.util.prefs.WindowsPreferences openKey
WARNING: Could not open windows registry node Software\JavaSoft\Prefs at root 0xffffffff80000002. Windows RegOpenKey(...) returned error code 2.
Jun 04, 2026 12:58:01 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 12:58:01 PM mpi.eudico.client.annotator.prefs.PreferencesReader parse
INFO: Reading preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Using JMMF Player for file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: WINVER: 2560
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: file path:
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateMediaSource: the media type has video: 1 
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateTopologyFromSource: media duration 33095061999
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.AddBranchToPartialTopology: frame rate, numerator: 60000, denominator: 1001
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.commands.ClipMediaCA <init>
INFO: Found clipping script: clip-media.txt
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.tiersets.TierSetUtil readTierSetsFromFile
INFO: Could not load the tier set file. The file does not exist or is not valid.
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.gui.InlineEditBox <clinit>
INFO: Number of available spell checkers: 0
Jun 04, 2026 12:58:02 PM mpi.eudico.util.ExtClassLoader loadClasses
INFO: Extensions dir: C:\Users\Public\ELAN\app\extensions
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.util.AvailabilityDetector detectFromJar
WARNING: No plug-in cmdi metadata file found in analyzer-gloss-0.7.jar
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.util.AvailabilityDetector detectFromJar
WARNING: No plug-in cmdi metadata file found in annotyzer-lexicon-0.9-compound.jar
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.util.AvailabilityDetector detectFromJar
WARNING: No plug-in cmdi metadata file found in annotyzer-whitespace-split-0.9.jar
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637243948752
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 12:58:02 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.OnTopologyReady: successfully got the Rate Control
Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer: Init Session
	Aspect Ratio: 1.3333334
	Duration: 3309506
	Time Per Frame: 16.683333333333334

Jun 04, 2026 12:58:02 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer initialized in 4 times 200 ms
Jun 04, 2026 12:58:42 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.Invoke: failed to process the media event (-1072875854, 0xC00D36B2)
Jun 04, 2026 1:02:35 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:02:42 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:06:38 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:06:38 PM nl.mpi.lexiconcomponent.gui.LexiconHandler initAvailableLexiconList
INFO: Found 0 lexicons in the folder C:\Users\jlweiner\.elan_data\LexanLexicons
Jun 04, 2026 1:06:38 PM mpi.eudico.util.ExtClassLoader getInstanceList
INFO: Cannot instantiate abstract class: nl.mpi.lexan.analyzers.parsebase.AbstractParseAnalyzer
Jun 04, 2026 1:06:41 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:06:41 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:18 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:18 PM nl.mpi.lexiconcomponent.gui.LexiconHandler initAvailableLexiconList
INFO: Found 0 lexicons in the folder C:\Users\jlweiner\.elan_data\LexanLexicons
Jun 04, 2026 1:07:21 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:21 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:23 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:23 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:25 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:31 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:07:31 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:02 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:02 PM nl.mpi.lexiconcomponent.gui.LexiconHandler initAvailableLexiconList
INFO: Found 0 lexicons in the folder C:\Users\jlweiner\.elan_data\LexanLexicons
Jun 04, 2026 1:08:09 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:09 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:17 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:08:19 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.ProcessMediaEvent: the pending media pause time was set to -1
Jun 04, 2026 1:08:35 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:37 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:37 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:37 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.prefs.PreferencesReader parse
INFO: Reading preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Using JMMF Player for file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: WINVER: 2560
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: file path:
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateMediaSource: the media type has video: 1 
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateTopologyFromSource: media duration 33095061999
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.AddBranchToPartialTopology: frame rate, numerator: 60000, denominator: 1001
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.commands.ClipMediaCA <init>
INFO: Found clipping script: clip-media.txt
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:43 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:08:43 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637447288384
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:08:44 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.OnTopologyReady: successfully got the Rate Control
Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer: Init Session
	Aspect Ratio: 1.3333334
	Duration: 3309506
	Time Per Frame: 16.683333333333334

Jun 04, 2026 1:08:44 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer initialized in 3 times 200 ms
Jun 04, 2026 1:08:47 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:47 PM nl.mpi.lexiconcomponent.gui.LexiconHandler initAvailableLexiconList
INFO: Found 0 lexicons in the folder C:\Users\jlweiner\.elan_data\LexanLexicons
Jun 04, 2026 1:08:53 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:08:53 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:10:43 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:10:43 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:10:43 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:10:43 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.prefs.PreferencesReader parse
INFO: Reading preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Using JMMF Player for file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: WINVER: 2560
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: file path:
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateMediaSource: the media type has video: 1 
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateTopologyFromSource: media duration 33095061999
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.AddBranchToPartialTopology: frame rate, numerator: 60000, denominator: 1001
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.commands.ClipMediaCA <init>
INFO: Found clipping script: clip-media.txt
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637351972016
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:10:49 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.OnTopologyReady: successfully got the Rate Control
Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer: Init Session
	Aspect Ratio: 1.3333334
	Duration: 3309506
	Time Per Frame: 16.683333333333334

Jun 04, 2026 1:10:49 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer initialized in 3 times 200 ms
Jun 04, 2026 1:11:04 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:11:04 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:11:04 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:11:04 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.prefs.PreferencesWriter encodeAndSave
INFO: Writing preferences: C:\Users\jlweiner\.elan_data\elan.pfsx
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.prefs.PreferencesReader parse
INFO: Reading preferences: Z:\Audio Recordings\CardStudy_Subin_Fall2022\Video Recordings\CARD_VIDEO\NEWCARD_02block - Kelsey's Copy.pfsx
Using JMMF Player for file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: WINVER: 2560
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.initWithFile: file path:
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: file:///Z:/Audio Recordings/CardStudy_Subin_Fall2022/Video Recordings/CARD_VIDEO/NEWCARD_02block - Kelsey's Copy.mp4
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateMediaSource: the media type has video: 1 
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.CreateTopologyFromSource: media duration 33095061999
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.AddBranchToPartialTopology: frame rate, numerator: 60000, denominator: 1001
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.commands.ClipMediaCA <init>
INFO: Found clipping script: clip-media.txt
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_JMMFPlayer.getAspectRatio: cannot calculate the aspect ratio, height is 0, id 1637448705344
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getAspectRatio
WARNING: The aspect ratio is not initialized yet: 0.0
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer getSourceWidth
WARNING: Width not initialized yet: 0
Jun 04, 2026 1:11:10 PM nl.mpi.jni.NativeLogger nlog
NATIVE: N_MMFPlayer.OnTopologyReady: successfully got the Rate Control
Jun 04, 2026 1:11:10 PM mpi.eudico.client.annotator.player.JMMFMediaPlayer$InitWaitThread run
INFO: JMMFMediaPlayer: Init Session
	Aspect Ratio: 1.3333334
	Duration: 3309506
	Time Per Frame: 16.683333333333334

Hello,

Thank you for sharing the logs!
Could you let me know which mode you’re experiencing this issue in — Interlinearization or Segmentation mode? It would also be helpful to know which actions are triggering the freeze. Is it happening when you use the play action?

Best,
Divya

Hi Divya,

The issue occurs in segmentation mode (annotation). The freeze is triggered when using the plat action, as well as when trying to clip a section to annotate.

Thank you,
Cindy

Thank you Cindy,
To help narrow down the cause, could you ask them to first try opening one of the ACLEW example files and testing the same actions in Segmentation mode (play and clip)?

If the ACLEW example files work fine, that points to a video encoding issue with their specific files. In that case, please go through the ELAN video encoding guidelines and re-encode your videos with the recommended settings.

Best,
Divya