Infinity Camcorder J2K-MXF – Conversion and Rewrapping (Mac)

 

I-J2K Suite (Mac) Summary

For editing: Converts 10-bit Infinity J2K files to 10-bit CineForm Intermediate MOV files
   - converted files retain spatial resolution and frame rate of source files
   - converted files are compatible with Final Cut Pro and Premiere Pro on Mac

For shot review: Rewraps Infinity J2K files to CineForm J2K (C-J2K) files with an MOV wrapper
   - rapidly copies each Infinity MXF file to a new MOV-wrapped J2K file compatible with QuickTime Player and other QT applications

Neo HD or Neo 4K must be installed on Mac prior to installing I-J2K Suite

NOTE: ReMaster (within Neo HD/4K) includes the Trial version of I-J2K Suite for converting Infinity media.  All converted media will have a watermark until the non-watermark version of I-J2K Suite is purchased and installed. I-J2K Suite can be purchased from the CineForm online store.

 
INTRODUCTION

CineForm's ReMaster (included with Neo HD/4K) Rewraps and Converts Infinity J2K-MXF Media

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I-J2K Suite enables two features -– conversion and re-wrapping -– to support Infinity's J2K-MXF content. 

"Conversion" transcodes Infinity's 10-bit J2K format into 10-bit CineForm Intermediate MOV files of the same spatial resolution in preparation for editing. 

"Rewrapping" replaces the MXF wrapper surrounding the Infinity MXF files with an  MOV wrapper.  Rewrapped MOV files, even though they contain J2K video essence, will now play in QuickTime Player or other QuickTime applications.  Rewrapping creates a new MOV file at the location specified and leaves the source file intact.  Rewrapping is very fast - about the speed of a file copy, and is a great technique to use for shot review.

Editing: For best editing performance it is recommended that you transcode Infinity J2K files to CineForm Intermediate files.  Your new CineForm files will become your new digital master source for your online workflow.  File conversion is performed prior to beginning post-production by running CineForm's I-J2K Suite.  After conversion you'll have a a real-time workflow within Final Cut Pro or other QuickTime applications on Mac.  The original J2K-MXF files can then be stored for archive. 

Shot Review: In a production environment requiring quick review of material, we recommend re-wrapping J2K-MXF media into CineForm J2K (C-J2K) MOV files.  Re-wrapping is very fast (faster than real time) as it doesn't disturb the underlying J2K compression.  After re-wrapping, all QuickTime-compatible Mac applications can decode the C-J2K files when I-J2K Suite is installed, with performance dependent on your hardware.

NOTE: Neo HD or Neo 4K must be installed on Mac prior to using I-J2K Suite

CineForm Visual Fidelity: Transcoding J2K-MXF media to CineForm Intermediate files is extremely high quality with no loss of visual fidelity. For more information about CineForm compression quality, see our Quality Analysis pages.

 

MAC Workflow for I-J2K Suite
 
 

I-J2K Suite (Mac) is located in the /Applications/CineForm folder.  Upon launch, the window below appears, allowing you to navigate to the location of your Infinity files.  (Remember, each Infinity file is in its own folder).  Files that have already been re-wrapped are .mov files.  Select the files or folders you want to convert.

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After you have selected your files for conversion, the files will appear in the work queue window.  I-J2K Suite retrieves a thumbnail and descriptive information about each file you have selected.  The displayed size is the number of frames in the clip.  In addition to the folder or file name, the time the clip was created, resolution, format, data rate, operator and organization are also displayed.

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The window can be resized to show more of the list.  If you decide to remove a clip from the work list, click on the line, which highlights it:

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And press the “Delete" key, and the clip will be removed.

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You can use the Open file menu to add more clips to the list at any time before starting the conversion.

 

Specify Conversion Parameters

To change the conversion parameters, select the clip(s) and the button next to “Parameters” will be enabled.

 

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Click on the button and the parameter drawer for the selected clips will slide out from the side of the window.

 

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The tabs “Input”, “Processing” and “Output” are used to set up the conversion parameters.  The tab “Preset” is used to store and retrieve conversion presets for the files selected.

The available conversion parameters depend on the clips selected.  Presets are managed based on the clip type as well.

  

Processing

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Only available when the original MXF source clips are selected.  This panel allows you to select the audio processing and whether the clip chunks should be combined.  When you click on the “Audio” pop-up menu, you have a list of the options for the audio conversion.  The default conversion is 24 bit, 4 channel audio.

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Output

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Available for both types of conversions.  You can select a transcode, as shown above, or a re-wrap, by clicking on the “Re-wrap” button.  For a transcode, the “Quality” slider adjusts the quality and the bit rate of the encoded material.  For 1080p23.97 material, the encoded bit rates are approximately as shown below, but the bitrate will vary according to image complexity.

Low                    113 mbit
Med                    124 mbit
High                   158 mbit
Film Scan 1     222 mbit
Film Scan 2     252 mbit

The “Folder” field allows you to set a subfolder within the destination folder to store the selected clips.

  

Preset

 

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This is used to manage presets for the selected clips.  For each source clip type, I-J2K Suite maintains a default preset, last settings used and a number of user definable presets.

 
Example – Create a ¼ resolution re-wrap preset.

With the clips selected, open the Parameters and select the “Output” tab.  Click on “Re-wrap” and the slider will change to show 3 settings: “Quarter”, “Half” and “Full”.  Move the slider to “Quarter”.  To keep these re-wrapped clips separate, enter “quarter” in the folder field.  The window should now look like:

 

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Click on the “Preset” tab, and click on the pop-up menu.  It will have “Save new preset…” as the last entry:

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Select that and a sheet will open on the main window so you can describe the preset.  Give it a name, and fill in what ever information you may need to identify the preset later.

 

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Click “OK” when you are ready, and the preset will now be shown in the preset tab.

 

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To use this preset, select the clips you with to convert, open the “Parameter” drawer, and select the “Preset” tab.  Select the preset from the pop-up menu, and if it is the one you would like to use, click on the “Apply” button and the settings will be used for all the selected clips.

When you are done with a preset, select it and click on “Delete” and it will be removed from the system.

  

Conversion

Click on the “Convert” button to start conversion of all the clips in the work queue.  A window will open for the destination folder:

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You can navigate your system and create new folders if you would like to.  Clicking “Open” will use the selected folder as the base location for the converted files.  If you have any “Folder” fields defined in the “Output” tab, those folders will be created as needed within the destination folder.  In our example we specified the “quarter” folder for the re-wraps, so all the re-wraps will be placed in “/a/quarter”
When the conversion starts, the window will show the status of the conversion. 

 

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The spinning progress indicator next to the clip thumbnail indicates the clip currently being processed.  If more than one clip is in the list, two progress bars appear below the work list.  The upper bar is the progress of the current clip, the lower is the progress of the work queue.  The time estimate is for the complete work queue.

As each clip is completed, a check mark is placed next to the clip.

 

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Mixing Source material


If you need to queue multiple types of conversions at once, you can add different types of source material to the work queue after the queue is displayed.  Use the “File” menu to “Open” additional files. 

In this window, we have both MXF source files and re-wrapped files in the same list.

 

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If you select all the files to set the conversion parameters, you will need to choose which file format you wish to set parameters for.

 

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Select the file format from the pop-up menu

 

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And I-J2K Suite will deselect all other files.

 

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To review the settings, select a single clip and open the drawer.  In this example we have our source MXF clip and the settings show our last conversion which was to re-wrap to the “quarter” folder.

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Select the next file and the panel will show the parameters for it 

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Stopping Processing

If you want to stop the conversion, click on the “Stop” button.  The stop dialog will ask to confirm

 

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If you want to stop at the end of the current clip, click “Yes”.  If you want to stop at once, click “Stop Now”.  If you want to continue, click “Cancel”

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