On Sun, Dec 23, 2018 at 23:22:38 +0000, CherylJosie wrote: > Yes thanks found a helpful site and got that far just after posting > but I found the info on number of channels online not in the ffmpeg > manual. I wasn't even sure what to look for so couldn't search the > manual with a direct query.
Just by looking at the documentation for the amerge filter: https://ffmpeg.org/ffmpeg-filters.html#amerge-1 This wiki page is also very practical, by the way: https://trac.ffmpeg.org/wiki/AudioChannelManipulation > I'm trying to do 7.0 but it's generating 6.1. I'll keep looking for the > channel configuration instruction too i guess. I believe ffmpeg is guessing the channel layout. The only trick I know is to add the pan filter to the chain, where you can specify the output layout: $ ffmpeg [...] -af "[...],amerge=7,pan=7.0" [...] But I have no idea whether it does exactly the right thing for you. Worth a try. > I could maybe add a blank LFE if I knew the syntax. Wouldn't that give you eight channels? > Syntax seems different for avlib than for ffmpeg and amerge is an > avlib function apparently? Not sure what you're trying to say. ffmpeg uses the av* libraries, libavfilter is one of them. But the syntax of the command line options for ffmpeg, the command line tool, is quite well documented. > Getting there. We'll get you there, no doubt. :-) Cheers, Moritz _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
