Tech Tip - MPEGRepair and Expert-Caption Batch Commands

Customizing Command Mode

PixelTools’ MPEGRepairHD and Expert-Caption products can can be run in the Batch Command mode. Specific parameters can be customized in the MpegRep.ini of ExpCap.ini in the program’s launch folder. The following flags can also custom ize the operation of the tool.

MpegReparHD has the same batch functionality as Expert-Caption if:

MPEGRepair | Configure Decode | Fix Stream | Add Closed Captions from File is checked

and

Closed Captioning Format is set to CEA708 DTV & NTSCin the MpegRep.ini file.

Batch command format:

[MpegRep or ExpCap] [flags] [Input Files]

Encoding
   flag = none
   MpegRep  Source.AVI
   Encode Source.AVI using default parameters

Decoding
   flag = -d
   MPEGRep -d Source.mpg
   Decode/Spit/Extract frames of Source.mpg using default parameters

Analyzing
   flag = -z
   MPEGRep -z Source.mpg
   Analyze Source.mpg and save analysis in Decode.log

Appending
   flag = -a
   MPEGRep -a File01.mpg
   Appends File01.mpg File02.mpg etc into File.mpg

Captioning
   flag = none (with “Add Closed Captions From File” set in ini and source file suffix is .mpg)
   optional flag = -dc to cause app to exit if file already captioned
   MPEGRep  Source.mpg
   Adds captions defined in Source.scc into Source.mpg

Extract Captions
   flag = -cx
   ExpCap -cx File.mpg
   Extracts Files from File.mpg and saves as specified in ini file

Multiplexing
   flag = none   (with “Mux video only” set in ini)
   MpegRep Elemvideo.vbs
   Multiplex Elemvideo.vbs with audio file defined in the ini

Transcode MXF with captions to MPEG with captions
   flag = -mx
   MpegRep -mx Source.mxf
   Converts MXF file to captioned MPEG video and audio in transport. Captions can be inserted from MXF caption track or caption file.

Transcode LXF file to MPEG Transport with audio
   flag = -lx
   MpegRep -lx Source.lxf
   Converts LXF file to MPEG program or transport stream with audio

Audio Encoding
   flag = ae
   MpegRep -ae Source.wav
   Encodes .wav file into MPG or Ac3

Audio Decoding
   flag = ad
   MpegRep -ad Source.mpa
   Decodes Source.mpa into Source.wav

Batch Operation Notes

The batch commands work with all PixelTools apps. Substitute the app name for MpegRep in the above examples.

The PixelTools apps use their default ini in their launch folder to set up the parameters before the processing. You can prepare parameters for each of your desired configurations, save as a custom ini and copy that ini over the app’s default ini.

You can process all .mpg files in a folder using the batch command:

   FOR %%j IN (*.avi) DO Call EncodeFile %%j

    where EncodeFile.bat contains a call to MPEGRep.exe: MpegRep %1

 

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