Am Samstag, 6. Oktober 2007 22:21 schrieb Michael Riepe: > > But I'm not sure if the audio/video-properties change is still a reliable > > method to detect them. Nowadays also commercials have a DD track... > > Not on DVB-T, as far as I can tell.
Maybe it also depends on the sender... just noticed it recently on Pro7... > There are other clues as well - a switch to/from wide screen mode, for > example. Or the average volume level (commercials are usually louder > than movies). Jingles that indicate the beginning or end of a commercial > break. And so on... > Of course,.... the best detection method would be a combination of all,... adding up to some kind of a penalty. WideSreenMode should be easy to detect,... jingles are harder to detect. You'll need some kind of database or train a neural network... But for the volume level method one could use the replaygain/mp3gain-code which should be suited to read mpeg audio... and that's even written in C++... --> http://mp3gain.sourceforge.net/download.php Several years ago I saw a diploma theses about commercial detection... it never made it into a consumer electronics device. ;-) > > Better method would be the identification of the sender logo (pixels > > which are not changing), which is not there during commercials. But > > that's time consuming... > > Besides that, it's really tricky nowadays. Some logos change position > during a movie, for example. Yeah, and lot's of banners comming from all directions... guess they've also read the diploma theses I mentioned... ;-) ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ DVBCUT-devel mailing list DVBCUT-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/dvbcut-devel
