From: Rolf D. <Rol...@ph...> - 2004-02-26 14:04:26
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On Thursday 26 February 2004 14:23, Ruslan Popov wrote: > To convert AVI to DV you need: > 1. libdv package installed. > 2. mplayer built with libdv support. > > Then: > mencoder \ > -ovc libdv \ > -lavcopts vcodec=3Ddv:vbitrate=3D6000:keyint=3D50 \ I don't understand the meaning of keyint and vbitrate in a DV context. It= =20 doesn't make sense. > -oac copy keep in mind, that piave presently can only write interleaved DV audio. s= o,=20 even if it is already possible to play a DV video stream and play the=20 AVI-audio-track or read/play any ogg/wav file parallel to rawDV/AVI video= , it=20 is neither possible to save this audio to raw DV nor AVI.=20 Anybody care to work on the libsamplerate plugin which is already started= ? This would be a nice project to get started with piave. All iostream plugins (DV/ogg/wav/AVI) produce raw PCM audio for internal=20 processing. This needs (most likely) to be resampled and then written int= o=20 the AVI-file (or interleaved into the raw DV stream). Should not be very=20 difficult. Mixing audio is also trivial, so this is basically all we need to be able= to=20 be able to underlay video with music (or any audio). Eh? Aybody ;-) ? > -o video-dv.avi video-mjpeg.avi > > About DV. > I don't know what is its ordinary bitrate. It is _exactly_ : - PAL 144000*25*8 bps - NTSC 120000*29.97*8 bps > What audio codec ordinary does DV use? PCM (my cam 32-48 kHz) Cheers, Rolf --=20 contacts: www.physi.uni-heidelberg.de/~dubitzky |