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mpeg2 closed captioning vegas pro 10 – dvd architect
Simple problem – how in the world does one get a dvd out of DVD Architect 5.2 with an mpeg2 file from Vegas 10d?
Maybe the first question should be how does one get the cc data embedded in the mpeg2 file to begin with. All the cc data has been entered – shows on the preview – and it is accessible when the project is printed to tape (dvcpro50). Of course on the broadcast tape it is 486 lines not the 480 of an mpeg2 for dvd consumption.
Does anyone have a workflow for this? Any brilliant insights will be appreciated.
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4 Replies
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[Richard Warmuth] “Simple problem – how in the world does one get a dvd out of DVD Architect 5.2 with an mpeg2 file from Vegas 10d? “
Vegas Pro 10 does not support DVD captioning, only broadcast captioning. So the short answer is… you can’t.
[Richard Warmuth] “Maybe the first question should be how does one get the cc data embedded in the mpeg2 file to begin with”
Vegas Pro 10d will embed the captions when you render to MPEG2. Previous versions (10c and earlier) did not.
[Richard Warmuth] “Of course on the broadcast tape it is 486 lines not the 480 of an mpeg2 for dvd consumption.”
And that’s exactly the problem. DVD’s do not support broadcast captions. They have no way to carry it.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
It seems I’m back in the DVD closed caption business. This has always been a multiple step process for me, but I assure you DVDs can support line 21 closed captions.
The trick is to use DVD software called “DVD LabPro 2” I can’t recommend it for authoring but one thing it does very well is muxing scc files into mpg2 files to deliver DVD files. After that, edit the IFO with IfoEdit to turn on closed caption flags. Then you can burn a DVD that, in fact, will deliver line 21 data when played on a standard DVD player. Your TV will then display them when the CC button is pressed on your remote control. (will not work thru HDMI)
Having said that, the whole process is a royal pain. Maybe 6 or 7 steps to get there.
Understand that this is not a 486 line vs 480 line issue. With DVD LabPro2, the scc data is muxed into the 480 x 720 mpg2 file as it is converted to VOB files. It matters not that 480 line files do not have a place for line 21. The DVD player inserts the actual line 21 signal your TV or monitor is looking for.
Sony Vegas 10e will greatly simplifies this up to a point. Creating captions with Vegas 10e couldn’t be easier. Exporting the SCC file is simple. In fact, an scc file is automatically generated when any video file is rendered.
But as far as I can tell, with Vegas there is no muxing of the scc data with the mpg2 file. But if you render to a 486 line file the the CC data is visible in the upper part of the frame when played on Windows media player. This is not “muxing” as I understand it, this is “inserting” and not the desired function I am looking for.
All this said, Vegas 10 is a great way to generate the captions. But for now a 3rd party solution is necessary to finish the DVD.
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[Larry Brewer] “All this said, Vegas 10 is a great way to generate the captions. But for now a 3rd party solution is necessary to finish the DVD.”
Yea, it seems that DVD Architect would need to support closed captioning as well and it doesn’t. I also read that closed captioning is only available for Region 1 DVD’s. Other regions can’t carry it. Also HDMI cables can’t carry it as it’s an analog signal so there are issues with getting the captions to play back properly even if they are on the DVD.
~jr
http://www.johnrofrano.com
http://www.vasst.com -
From the Pro 10 readme file.
New Features in Version 10.0
Improved support for closed captions:
You can now preview captions using overlays in the Video Preview window and Trimmer window.
When rendering to XDCAM HD/HD422, CEA608 data is uplifted to CEA708 format so that CEA608 and CEA708 captions are available when playing via HD SDI.
Added support for import, rendering, and print to tape of line 21 CEA608 closed captions.Please note that encoding line 21 captions for DVD is not supported. MPEG-2 video for DVD cannot exceed 480 lines of resolution. DVD line 21 captions are embedded as metadata in the MPEG-2 video stream and are not supported.
You can now export closed captioning for DVD Architect, YouTube, RealPlayer, QuickTime, and Windows Media Player.
You can now import closed captioning from the following file types: Scenarist Closed Caption (.SCC), RealPlayer (.RT), SubRip Subtitles (.SRT), Windows Media Player (.SMI), Transcript or QuickTime (.TXT), CPC MacCaption Files (.MCC), and DVD Architect Subtitles (.SUB).CEA608 and CEA708 closed captions are supported over HD-SDI on AJA cards only. Line 21 captions are supported on AJA and DeckLink cards.
Notable fixes/changes in Version 10.0d
Added support for reading ATSC and SCTE closed captions in MPEG-2 video.
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