File-based Closed Captioning Workflows

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See our captioning comparison chart to find the configuration that’s right for you.

We are often asked "How do I deliver a video file with closed captions?"

The answer depends on what kind of system or software will be used to play or process the file on the receiving side. Telestream captioning software supports many different kinds of workflows for delivering files with closed captions to be used on file-based video servers and digital asset management (DAM).

When confirming your delivery specs with your facility or client, here are some good questions to ask:

  • What kind of server or software process they will be using to ingest (import) the file that you send them. (e.g. “We will be ingesting the file into our Omneon playback server”, or “We are going to put the file in our FCP system and output to a tape”, or “We use Telestream Vantage to transcode the file to XYZ format”, etc. – The more specific details, the better!)
  • The detailed specs of file type(s) they can accept with closed captions (wrapper/stream type, codec, resolution, frame rate, bit rate)

Transcoding software

Many facilities use a variety of transcoder solutions including, Telestream Vantage, Episode, FlipFactory, and Agility, in order to accept a wide variety of file formats and convert them to the facility's preferred format. Check to see if your transcoder preserves the closed captions embedded into the video file. In many cases, it can accept a .SCC or .MCC file with closed captions as a separate file. Or, you may need to identify the "final destination" format used by the facility, and provide that file type with embedded closed captions.

Omneon

Omneon servers support different kinds of media files, depending on the options installed on the server:

  • XDCAM HD-type MXF files with SMPTE 436M Closed Captions
  • XDCAM HD codec MOV files with internal MPEG-2 Closed Captions (MacCaption only)
  • DVCPRO-HD codec MOV files with internal DVCPRO-HD VANC Closed Captions (MacCaption only)
  • DV/DVCPRO (DV25/50) codec MOV files with internal VAUX Closed Captions

Harris Nexio

Harris Nexio servers with the latest software updates (5.71) can use the MCC file format generated by our captioning software for HD closed captioning.

Seachange

Seachange servers can use XDCAM HD-type MXF files with SMPTE 436M Closed Captions, or DV25 (standard def) video with DV VAUX closed captions.

DG Fast

Depending on your specific drop box for DG Fast, they may require either MPEG-2 Program or Transport streams with embedded closed captions for HD. For SD, they use the 720x512 MPEG-2 format also supported by Telestream captioning software using the MainConcept plugin.

MPEG-2 Files for CableLabs VOD

Many VOD providers such as Comcast require MPEG-2 Transport Streams using the CableLabs spec (Manzanita plug-in sold separately).

MPEG-2 for generic/unknown servers

Many file servers support MPEG-2 Program Streams or Transport Streams with embedded closed captioning (transport streams require Manzanita plug in sold separately).

Other File-based Closed Captioning Workflows

  • QuickTime:
    • QuickTime DTV 608/708 HD Closed Captions (MacCaption only)
    • QuickTime 608 SD Closed Captions (MacCaption only)
    • Line 21 onto any 720x486 QuickTime video
    • DV VAUX CC onto a 720x480 DV25/DV50 video
  • MPEG-2 Elementary, Program, and Transport Streams (transport streams requires Manzanita plug-in sold separately).
  • MXF Files for XDCAM, Omneon and SeaChange servers
  • DVCPRO-HD QuickTime files for Omneon servers and more (MacCaption only)
  • Common closed caption formatted files such as Cheetah .CAP, SCC, MCC, etc.

Closed Captioning for Web and Mobile Devices

MacCaption and CaptionMaker can add closed captions to any kind of web video format: QuickTime (including for iPod/iPhone/iPad/etc.), iTunes, YouTube, Flash, Windows Media.

Closed Captioning & Subtitling for DVD and Blu-ray

MacCaption and CaptionMaker can add closed captions and subtitles to DVDs for most professional authoring programs, including DVD Studio Pro. It can also create HD subtitles for Blu-ray authoring programs.

Media Asset Management (MAM): Extract, Edit, Convert, and Re-embed Closed Captions

MacCaption can extract closed captions from an already captioned video and re-export them to a huge variety of formats. It can automatically conform the closed captions to match an edit decision list, or manually edit the existing closed captions in an easy-to-use non-linear interface. And it even supports batch conversion and CLI scripting for automation workflows.

CaptionMaker | MacCaption

Telestream’s award-winning closed captioning software products
allow you to easily author, edit, encode and repurpose video captions for television, web and mobile deliver – starting at $1095.

Try all the features of Captioning with a free trial, or buy now at our secure online store.