Yes, after thinking more about it, and dipping into information on the web,= I myself is leaning towards just intercepting the display data. But I was thinkig more about using serial bus sniffer and decode the commands sent to the display controller rather then reading the panel itself. Either way, as you mentioned, there still is the problem with frames count. I will check the pro-player with a built in interface route as well. -----Original Message----- From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf Of Robert Rolf Sent: Monday, October 21, 2013 5:45 AM To: Microcontroller discussion list - Public. Subject: Re: [EE]: LTC signal from DVD player: how? Your fastest solution is to buy a pro level DVD player with LTC output already built in. Most of the top pro grade players have it (Pioneer, Sony, et al). Most DVDs do NOT have VITC. There is no need since the TC is buried in each frame's meta data. If your client is burning his own disks, the top authoring tools allow VITC to be added (I think. The references I find just talk about 'time code fliter' on render, and it being painfully slow). The hack way is to read the display driver leads and demux /decode the displayed dots or seven segement code. You just have to pick a cheap player that always shows time in the display. The down side is that you'll have to interpolate the frame information, since most display only show to seconds. Also have to detect 24 fps vs 29.97 fps and do drop frame LTC. On Fri, Oct 18, 2013 at 11:48 PM, skorokhod wrote: > LTC is what the customer needs as an input for his equipment, so whateve= r > encording used on DVD I need to produce LTC as an output. > It really does not matter, my problem is how to capture the timestamp data. > > -----Original Message----- > From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf > Of Dave Tweed > Sent: Saturday, October 19, 2013 3:00 AM > To: piclist@mit.edu > Subject: Re: [EE]: LTC signal from DVD player: how? > > > You keep saying LTC (linear time code), which is normally recorded in an > audio > track, but it's much more likely that video equipment would produce VITC > (vertical interval time code), which carries the same information in the > veritcal blanking interval of an analog video signal. It is encoded in a > manner similar to (but distinct from) closed-captioning. > > -- Dave Tweed > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .