Follow

GET STUBBORN CLIPS TO PLAY IN THE DDR?

First, note that TriCaster has a two minute warm-up period during which system software initializes.  During this period, frames may be dropped during playback.

QuickTime®

At the time of writing, a 64bit version of Quicktime for Microsoft Windows® is not available.  TriCaster provides internal support for many QuickTime file formats, but not all of them.  If a QuickTime file fails to play smoothly (or at all) in the DDR, converting it to a friendlier format can help.

We recommend downloading and installing the NewTek TriCaster Codec Pack (Mac) from the downloads page of your personal registration area on the NewTek website (http://reg.newtek.com/Default.aspx).  This will permit you to select from several NewTek SpeedHQ codecs (including 32bit formats with embedded alpha channel) from applications that render to Quicktime® formats.

Alternatively, Final Cut® users might consider M-JPEG, MPEG2, DVCPRO HD, or the DV Quicktime codec (for SD clips only, of course) as intermediate formats.

AVI

AVI codecs are plentiful. Most are suitable for DDR playback, but a few are not.  For a given clip to play in the DDR, a corresponding 64bit codec needs to be available.  However, we strongly discourage installing ‘foreign’ codecs, codec packs and the like downloaded from Internet sites, etc.  For the sake of stability, if an AVI clip does not play well in the DDR, please consider converting it to a ‘friendlier’ format.  We can recommend NewTek’s own SpeedHQ, or perhaps DV (for Standard Definition clips), M2T or MPG – please continue reading for more information on file conversion.

Remuxing Clips

Even when a specific AVI exists and can generally be considered ‘friendly’, the manner in which audio and video data is multiplexed (or ‘muxed’, in the jargon) by some few applications can cause playback issues that are only evident under stress.  That is, a clip that plays back adequately in a typical player or NLE application may not do as well when played in a DDR at times when many other concurrent operations are occurring simultaneously.

In general, remuxing such files is all that is needed to obtain good performance.  One approach is to use any of a number of freely obtainable remuxing utilities.  A quick Internet search for “remux avi” turns up several applications you could use, some free.  Installed on an external system, these will remux AVI files losslessly, resolving the issue.

You may prefer one of several simpler approaches that can be performed right on your TriCaster.  For example, if the clip will play properly in a DDR when the system is not heavily loaded with other tasks, you could simply put the DDR on Program output, click Record, play the clip, and stop recording.  With a little trimming of the recorded clip you’ll have a very usable file.

Or, you can use SpeedEDIT – its Convert to SpeedHQ feature (found in the Filebin’s context menu) can easily convert a number of clips in a single operation.

Flash (F4V)

F4V format files written by Adobe® Flash Media Encoder are incompatible with most video playback applications (even those from Adobe). The developer has explained the situation as follows:

“Adobe Flash Media Server version 3.5 and later and Adobe Flash Media Live Encoder 3 can record content in MPEG-4 (F4V) format using an industry-standard recording technology known as “fragments” or “moof atoms.” Some MPEG-4 compatible tools and players do not support moof atoms, and therefore cannot recognize files recorded by Flash Media Server. The F4V Post Processor tool aggregates the information from all the moof atoms into a single moov atom and outputs a new file”

Unconverted F4V files imported will not play in TriCaster’s DDR either. Conveniently, TriCaster can automate the conversion for you to a degree.  If you locate the folder named Media\Clips\sessionname\SavedStreams on your primary session drive, you will see the “raw” (unprocessed) streaming file(s) and a batch file (.bat) that can be used to convert all files in that  folder.

Simply double-click the .bat file to initiate processing. (Note that processing can take some time, so don’t do this just before a production.)  Output files will be placed in the same folder after conversion.

Hint: The .bat file supports several additional features if employed with command line switches.  A readme file located in the same folder provides details of these alternatives.

 

If you prefer to perform this post-processing on another computer, you can transfer the raw files to it and use the Adobe F4V Post Processor tool, available from the URL below (requires an account to login):

https://www.adobe.com/cfusion/entitlement/index.cfm?event=custom&sku=FS0000522&e=fms35

SECTION A.3.12   

For more information please download the entire document at new.tk/rt-m

Was this article helpful?
0 out of 0 found this helpful
Have more questions? Submit a request

0 Comments

Please sign in to leave a comment.