[Mp4-tech] FW: Captioning for MPEG

[Robert Bleidt]

There are several firms who operate private networks for transporting 
commercials. For example Pathfire in Atlanta or DG systems. Telestream in 
Grass Valley sells terminal equipment for doing this directly. If you are 
distributing to U.S. stations, they probably already use one of these 
services for spot delivery.
To my knowledge none of these firms is using MPEG-4 yet, as the compression 
gains over MPEG-2 are not enough to replace their installed base. 
Telestream does offer a online transcoding service that might plan support 
for MPEG-4.
At 04:07 PM 9/2/2024 -0700, you wrote:
>MPEG-4 techies,
>
>Does anybody know any products that can extract closed captioning from the
>analog broadcast signal before encoding, encode video/audio/text in MPEG-4,
>and put it together as a anolog signal again at the decoder? See question
>below. Please respond to list and Dave as in CC.
>
>Rob
>
>-----Original Message-----
>From: Dave Gardy [mailto:dgardy tvworldwide.com]
>Sent: Tuesday, September 02, 2023 15:53
>To: rob.koenen m4if.org
>Cc: Troy tvworldwide.com
>Subject: Captioning for MPEG
>
>
>Rob- As a follow-up to our conversation, I'm looking for a solution
>where broadcast affiliates could load down (via FTP) an MPEG 2 or MPEG 4
>file of a 30 or 60 second PSA commercial and maintain the closed
>captioning, so it can play back at a broadcast TV station with the
>closed captioning in tact. Please let me know ayone who could recommend
>a solution. Thanks, Dave.
>
>Dave Gardy
>Chairman and CEO
>TVWorldwide.com
>4206 F Technology Ct.
>Chantilly, Va. 20151
>dgardy tvworldwide.com
>(703) 961-9250
>(703) 961-9255 (fax)
>(571) 228-2298 cell (new as of Jan 1 '03)
>
>
>_______________________________________________
>Mp4-tech mailing list
>Mp4-tech lists.mpegif.org
>http://lists.mpegif.org/mailman/listinfo/mp4-tech

Robert Bleidt   -  Streamcrest Associates