On 05/10/2010 12:25 PM, Patrick O'Callaghan wrote: > On Sat, 2010-05-08 at 01:38 -0430, Patrick O'Callaghan wrote: > >> 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. >> > The blocking artefacts are clearly a matter of fiddling with bitrates, > so no problem. It was the sound synch that was really confusing me. I > finally tracked down this discussion: > > https://roundup.ffmpeg.org/issue1756 > > which has some interesting things to say about the error message I > already remarked on: "... codec frame rate differs from container frame > rate ...". It's a problem with Matroska files. > > The solution was to build a new version of ffmpeg from SVN. That solves > the synch problem and the rest is just a matter of playing with the > settings. > > Thanks to all who offered advice, especially Sean Darcy > <seandarcy2@xxxxxxxxx>. Here's hoping a fixed version of ffmpeg makes it > into F13 (or even F12 updates). > > poc > > Very good to know Glad it's solved -- 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
