Editing Troubleshooting - BazzaCuda/MinimalistMediaPlayerX GitHub Wiki

Wiki Page: Video Editing
Wiki Page: Video Editing Example
Wiki Page: 4-Key Edits
Help Page: Main Editing Topic
Help Page: Editing Audio
Help Page: Editing Chapters
Help Page: Keyframes

Config Dialog: Keyframes

Editing - Export TroubleShooting

FFmpeg is a very robust application and is able to process practically any media file

  • MMP takes advantage of this robustness by using FFmpeg in a manner which is more than likely to be successful for a majority of audio and video files
  • nevertheless, occasionally, problems do arise
  • if an Export of a segment fails, you can click "Rerun" to view the FFmpeg error messages
  • a Windows Console will open so you can watch FFmpeg run and view its error messages
  • the progress dialog will wait until you close the console window before proceeding with the export
  • many problems that FFmpeg encounters are caused by the media file being created in a non-standard way by some third party software
  • quite often, this type of problem can be resolved by simply having FFmpeg create its own copy of the media file
  • the Audio & Video Timeline Editor in MMP provides you with a way to do this with one click of a button...

Copying the Source File

Letting FFmpeg make its own copy of a media file

  • hold down a [Ctrl] key and hover your mouse over the Export button
  • the Export button will change to Copy
  • when you click the Copy button, a window will open so you can watch FFmpeg make a copy of the file
  • if the copy is successful, the Editor will switch to editing the copy
  • any existing .mmp file and .key file will also be copied so your edits will be automatically applied to the copy
  • the Editor will reposition the cursor at the exact point you were at when you clicked Copy
  • if the media file was playing, the copy will continue at the exact same point
  • if you had the media file muted while you were editing, the copy will be muted too
  • quite often with this category of FFmpeg problem, you can immediately click the Export button and your export will succeed
  • occasionally, FFmpeg seems to have a problem creating .m4v files. For this reason MMP will always copy a .m4v file to a .mp4 file

Joining Existing .Segnn. Files

Occasionally, simply copying the source file does not resolve the problem and you will need to investigate why an individual segment didn't export or why FFmpeg wasn't able to Join/Concatenate the segments despite successfully exporting them

  • if any stage of the export process fails, you can click Rerun to view the FFmpeg error messages
  • a Windows Console will open so you can watch FFmpeg try to export the segment
  • the progress dialog will wait until you close the console window before proceeding with the export
  • if the problem is with an individual segment, you may be able to correct the problem and re-export a segment yourself
  • the .log file can be very handy for seeing the FFmpeg commands that MMP ran to export each segment and then concatenate them
  • if you are able to correct the .segnn. file for a segment you can instruct MMP to only perform the final Join stage
  • in this case you can hold down a [Ctrl] key while hovering your mouse over the Export button
  • the Export button will change to Join
  • when you click the Join button, MMP will not re-export your segments and will leave your manual corrections as they are
  • the export process will jump straight to the Join/Concatenate stage which joins all the files listed in the .seg file

.flac Lossless Audio Files You can certainly edit and export excerpts of .flac audio files but you will likely find that the reported duration of every exported segment and the final exported file is the same as the duration of the original file, even though the actual duration isn't

  • this is because FFmpeg will only rewrite the .flac header if you re-encode the audio stream
  • MMP deliberately doesn't support re-encoding of audio and video files
  • this is what makes editing and exporting of editing files so quick; it is basically a copy/paste operation
  • the option to re-encode files might be considered if there is enough demand for it


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