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Discuss: Async Load of Large Embedded Captions & Restore Embedded Captions from Source

Adobe Employee ,
Nov 08, 2021 Nov 08, 2021

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You asked, we listened!

 

Issue You Raised

Issue 1
Large, long-duration embedded captions took considerable time to import (period of not responding). The larger the amount of caption segments, the longer it would take to import.

Issue 2

FCPXML files imported with embedded captions do not show captions.

 

Solution Pr Pro Team Implemented

Resolution for Issue 1 (Async Load of Large Captions files)

With Premiere Pro 22.1 Beta, we’ve enabled ability to uncheck “import captions ” preference box to allow users to disconnect captions from the import of AV. If you do not want Captions when importing an embedded Caption, go to Preferences > Media and uncheck “include Captions on import” (it is checked, by default). This Preference will then apply to any newly imported clips (have not been imported prior). If you change the Preference and want existing imported clips to follow the Preference change, you will need to quit Premiere Pro, delete you Media Cache, Media Cache Files and Peak Files folders, then relaunch Premiere and import the clip(s) again.

 

OR

 

With Premiere Pro 22.1 Beta, when you import embedded Caption clips, they should import fairly quickly, and you will notice “Scanning Closed Captions” text and progress bar in the lower right of Premiere Pro (same area as where we report Peak File Generation).

 

The clip will display Media Pending in thumbnails, Source and Program Monitors while scanning is in process. Project panel List View will also list “Pending” in a number of columns (eg: Frame Rate, Media Duration).Scanning Closed Caption List ViewScanning Closed Caption List ViewScanning Closed Caption Icon ViewScanning Closed Caption Icon View

 

Resolution for Issues 1 and 2 (Restore Captions)

For Sequence that you added while Media Pending, once Scanning is complete, you can right-click on A/V in Timeline Sequence and choose “Restore Captions from Source Clip” (also available under Clip menu and unassigned shortcut). This will add the Caption track(s) from the source clip. This is a per clip action, so if you cut up your embedded Caption into multiple clip segments or added multiple Media Pending clips, then you need to select each one (in the Timeline) that you wish to Restore Captions.

 

This 'Restore Captions' solution also works for FCPXML files that appear to not have the embedded captions.

 

Restore CaptionsRestore CaptionsCaptions RestoredCaptions Restored

 

 We want to know what you think.  Please join the conversation below.

TOPICS
Feature request , Feedback , Performance

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Engaged ,
Nov 08, 2021 Nov 08, 2021

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Thank you for working on this issue! This has been a major pain point for months when dealing with any media with embedded captions. Will test some long caption media and see how the new features have improved.

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Adobe Employee ,
Nov 08, 2021 Nov 08, 2021

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Appreciate it, Andy! All feedback welcomed.

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Engaged ,
Nov 08, 2021 Nov 08, 2021

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Issue 1: Definitely seeing the import preference act as intended now. Much improved import speed even on an older Mac Pro. When I did turn the import captions preference off, it was great to see long movie files import with out lag.

 

Testing “Restore Captions from Source Clip” and it worked as designed, but seeing a beachball while the captions were being read and the UI became unresponsive. Considering the test movie file is 1 hour 42 minute in length, you just need to give the process time to read the captions. Mouse control did return after the beachball stopped. 

 

Will test on a M1 Mac Mini with 10g network attached storage and see if there is an improvement over my home 1gig NAS storage.

 

Question:  In the Project bin columns, if you add the Captions metadata tag, should you see some sort of entry in this field if the captions are embedded in the media file?  Or does this metadata entry only show something if you run the transcript in the cloud feature and create captions? 

 

Look forward to these improvements being pushed out to the public version soon.

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Adobe Employee ,
Nov 09, 2021 Nov 09, 2021

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The“Restore Captions from Source Clip” performance is something we are still working on and the Captions metadata column support is not implemented yet (it's on our radar, but I don't have an ETA).

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Engaged ,
Nov 09, 2021 Nov 09, 2021

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Thanks for the info Trent.

 

Testing on M1 Mac Mini: (22.1.1 BETA (build 31) (Big Sur11.6)

Importing 1 hour 42 min feature film with embedded captions, 5.1 & Stereo audio (8CH). Took 11+ minutes to have captions build. Probably our network, but it's 10gig connected and should be faster than my 1gig home network.

 

I dragged the movie file to "new item" icon to create a sequence while captions were being read. After captions were built, they did not auto appear in the sequence (As designed?).  I deleted the Movie from the sequence and dragged it from the project bin into the empty sequence and captions show up, but all of them are the same. Text window shows all proper captions, but the PGM Monitor is not refreshing while scrubbing the sequence. Generating peak files are still building during these steps. Loading the media file from the sequence into the source monitor is blank with no picture.

 

Let peak files build and PGM monitor is still stuck on frozen frame, does not refresh. Source monitor still not able to load clip. Created proper 5.1 audio / ProRes Sequence preset. moved movie file into sequence and PGM and Source monitor are still Black / Blank. Sequence does playback with audio, but no video or captions.

 

Will test some other media and create some new test projects and see if I get the same result.

 

 

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Engaged ,
Nov 09, 2021 Nov 09, 2021

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Created new project and dropped default color bars created by the "new item" icon into a sequence. PGM Monitor is still black and won't playback. Closed the project and got Serious Error crash 😞 

 

Create new fresh project and drop only color bars into new sequence, I get Yellow Media Pending graphic, then it changes to black screen in PGM. Need to force quit to close Premiere.

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Adobe Employee ,
Nov 09, 2021 Nov 09, 2021

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Apologies! 22.1.1 Beta build 031 should not have been posted to Creative Cloud. Build 031 has serious issues like you have described (Media Pending, loss of video overlay, crash, etc.). This has been resolved with 22.1.1 Beta build 033. Again, sorry about this bad build.

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Engaged ,
Nov 09, 2021 Nov 09, 2021

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None needed! It's a beta, you have to break things sometimes 🙂 Will update and try again.

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Engaged ,
Nov 10, 2021 Nov 10, 2021

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LATEST

Build 35 brought back all video.  Thanks.

 

After updating to build 35, all my media was offline in my test project when first opened up. Required relinking to get it to come back.


Wierd behavior: If Captions, Video  & Audio are all linked, you cannot double click on a video track in a sequence and have it move into source monitor. You need to unlink the caption track and then running this action again will move the video and audio into the source monitor.

 

Still seeing slow caption reading when source files are on Isilon network storage.  Anything I can do to speed this up? This is on a 10g connection and while captions were building, I could barely run a BMD speed test due to the connection being saturated with reading captions from a single movie file. During caption build Write is 62.6MB/s Read 565.8MB/s.  Speed test after captions are built are Write is 525 MB/s Read 1047 MB/s. 

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