On Sat, 2010-05-08 at 12:20 -0400, Bill Davidsen wrote: > Patrick O'Callaghan wrote: > > I occasionally need to convert Matroska videos to a format my > > stand-alone player (an LG DVD unit) can play. I don't need to author > > DVDs since the player can read from a pendrive via a USB port, but it's > > fairly limited in the formats it will accept. Xvid seems to work well so > > it's what I tend to use. > > > > The MKV files are for standard NTSC or PAL broadcast TV (not even HD in > > most cases, though they could be). I've so far been unsuccessful in > > hitting reasonable combination of options for producing a useful result. > > I've tried ffmpeg, transcode and mencode, but the resulting videos tend > > to have have noticeable blocking artefacts (despite playing with > > bitrates) and severe sound synch problems. Here's a random example of > > the kind of thing I've been trying: > > > I use ffmpeg for everything, and would suggest that the fewer options you use > the more likely it is that it will work. If you need 720x480 rather than the > original size, specify that, and set the bitrate to 3Mbit for decent quality. > > ffmpeg -i your.mkv -s 720x480 -b 3M foo.avi Nope, no luck. > I have had no problems with flash, to avi or DVD format, don't know what issues > (other than bitrate, avi is default too low). Be aware of the -aspect option if > it doesn't default to what you expect. Flash didn't work either. In both cases the player just doesn't recognize the file as playable, so it must be something to do with the output video format. Guess I'll keep fiddling or try the ffmpeg user group. poc -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
