2009/11/19 Alexandre Deckner <alex@xxxxxxxxxxxx>: > +1 for video:framerate, but PAL/SECAM/NTSC is an analog signal property > unless i'm missing something. You're right. I also suggest video:interlacing, with values "tff" (top field first), "bff" and "progressive". (audio|video):codec is also interesting when you have container formats. And there's also (audio|video):sampling, whose purpose is clear for the audio case, and for video it would have values such as 4:1:1 (DV), 4:2:0 (MPEG) etc. Cheers, A.