The nablet JPEG XS AMA Plug-in allows linking, playing and editing MXF wrapped JPEG-XS encoded footage. Furthermore, you can export JPEG XS encoded video that conforms to the JPEG XS streaming format specification and JPEG XS MXF wrapping specification.
This is a beta version that is not yet performance-optimized and which may have bugs. Do not use it in productions. Use it for evaluation only. Your feedback is welcome.
If you find issues, please contact us at email@example.com and let us also know the version of the plugin you are testing as well as the version of Avid Media Composer and the hardware specs.
Supported Avid Products
Avid Media Composer from v8.2 to the latest releases. Fixed occasional timeout messages during fast scrubbing.
Supported Operating Systems
- Windows 11
- Windows 10 64-bit
- Windows 8.1 64-bit
- Windows 8 64-bit
You cannot install the AMA Plug-ins while the editing application background services are running. Make sure you stop the services before installing the AMA Plug-Ins. The stop/start background services icon is on the Media Composer menu bar (Macintosh) or taskbar (Windows). Once you installed the new AMA plug-in, restart the services. See “Starting and Stopping Avid Background Services” in the Media Composer Help.
- Download the installer of the plugin.
- Double-click the installer file to run the installation.
- Follow the instructions provided by the installer.
- During the installation, any previous version of the nablet JPEG XS plug-in will be updated.
- Open Windows Control Panel and launch “Programs and Features”.
- Select “nablet JPEG XS AMA Plug-In” and then select Uninstall.
- Next, select Yes to confirm the removal.
Verifying the nablet Plug-in Version
After installation, the “nablet JPEG XS Plug-in” will be available to Avid Editing products. To confirm whether the plug-in was properly installed and verify the version follow the steps below:
- In Avid open the Console window by selecting Tools->Console.
- In the Console, type “Ama_ListPlugins” and press [Enter].
- Confirm that the “nablet JPEG XS Plug-in” is listed and the version matches the version you have installed.
Link Operation Procedures
Linking to MXF files on Media Composer 8.6 and later
- Select the desired destination bin in the project.
- From the menu bar, select File->Input->Source Browser.
- When in the Source Browser dialog, make sure that 'Link' is selected, not 'Import':
- In the Source Browser navigate to the JPEG XS file(s) to be linked.
- Right click the file and select “Link with" -> "nablet JPEG XS”.
- Hit Link button on the bottom right.
Linking to MXF files on Media Composer 8.5 and earlier
- Select the desired destination bin in the project.
- From the menu bar, select File -> AMA Link… (“Link to Media…” if using Avid MC 8.4/8.5).
- From the Files of Type pull down menu select “nablet JPEG XS (*.mxf)”.
- Select the JPEG XS file(s) to be linked.
- Select Open.
AMA File Export of JPEG XS Files
The “AMA File Export” feature allows the export of JPEG XS compatible files from Avid. Exports can be performed with all Avid media including linked AMA files. Note please that the export feature is not available on Media Composer | First.
JPEG XS AMA File Export supports following operating profiles:
JPEG XS Video
Color space YUV
- Light422 4:2:2 8 bit
- Light422 4:2:2 10 bit
- Main422 4:2:2 8 bit
- Main422 4:2:2 10 bit
Color space RGB:
- Light444 4:4:4 8 bit
- Light444 4:4:4 10 bit
- Main444 4:4:4 8 bit
- Main444 4:4:4 10 bit
- High444 4:4:4 8 bit
- High444 4:4:4 10 bit
Audio will be exported as PCM at a sampling rate of 48Khz or 96Khz (depending on the choice of
setting) with a quantization of 16 or 24 bits.
Supported Audio Mixdown modes are Direct Out, Mono, Stereo, 5.1 and 7.1. Direct Out exports separate audio tracks as they appear on the timeline without any down mixing. Direct Out is the default mode and should be used to maintain full JPEG XS compliance.
The audio will not be mixed down into a single multichannel track but each channel of the mixdown is stored as a separate track on the output file. For more details on audio mixing and the 5.1 or 7.1 channel assignments, please refer to the Avid user manuals.
The following steps will provide basic instructions for the use of JPEG XS AMA File Export:
- Right click the desired sequence or media file for export to reveal the context menu.
- On Media Composer prior to v8.6 select “AMA File Export” to open the AMA File Export dialog.
On Media Composer v8.6 up to v2018.9 select “Output → AMA File Export”.
Then Proceed to step 3.
From Media Composer 2018.10 onward intermediate steps are required:
On the Menu select File->Output->Export to File.
A dialog to specify the target file name and location and the settings will appear:
Specify a target file name and location and hit “Options” to raise the AMA File Export dialog.
- From the “File Type” pull-down menu select “JPEG XS”.
- On Media Composer prior to v2018.10 specify the target file name and location.
- From the “Video Profile” pull-down menu select the desired profile.
- From the “Video Precision” pull-down menu select the desired bit depth
- From the “Threads” pull-down menu select the number of threads used by the encoder
Auto is the default mode, the plugin independently chooses the appropriate number of threads at the moment. If you need to balance the overall system load, choose a fixed number of threads. The maximum number of threads available depends on the number of virtual cores on the CPU. Note that current version only allows a number of threads that is a multiple of 8. However, a full CPU load on export may not be achieved with this beta version due to missing performance optimizations, which are under development for the final release.
- Check the "Fragments" box to improve performance. (Enables sub-frame multi-threaded encoding).
- Use the "Quality” slider to set the target bit rate.
- If needed, suppress the generation of an ANC track by setting the “Create ANC Data track”
option to Disabled.
- From the “Audio Resolution” pull-down menu select the desired bits per sample, 16 or 24.
- From the “Audio Sampling Rate” pull-down menu select the desired sampling rate.
- Select the desired Audio Mixdown mode type
Direct Out is the default mixdown mode
Known Issues and Limitations
- For realtime playback of JPEG-S footage set the Avid’s NLE Video Playback Quality setting to
Draft or Best Performance.
- After transcoding a clip or after performing a video mix down, which always requests the
plugin to provide frames in highest quality, some versions of Media Composer will not reset to
the desired lower Video Playback Quality when playing back the source file or timeline. Toggle
the Video Quality setting once when you encounter a performance loss during playback.
- On some versions of Media Composer the first attempt to change a value on the Source Set-
tings Linked Plug-in tab does not take effect. To overcome this, toggle a setting one time, e.g.
switch between Clip Meta Data and Default and back. After that any further changes will take
- The current plugin version does support only progressive video format.