Dear Lou-2 Thanks for the advice. I uninstalled ffmpeg and then reinstalled ffmpeg following the instructions on https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu so that i can "configure FFmpeg with --enable-libass." as you advised. Unfortunately, I still get the same message.
[AVFilterGraph @ 0xa454640] No such filter: 'ass' Error opening filters! I can't figure out what changed during my reinstall of ubuntustudio and ffmpeg that caused this problem. On Mon, Jan 11, 2016 at 10:14 PM, Lou-2 [via FFmpeg-users] < ml-node+s933282n4674014...@n4.nabble.com> wrote: > On Sun, 10 Jan 2016 18:19:41 -0800 (PST) > jun <[hidden email] > <http:///user/SendEmail.jtp?type=node&node=4674014&i=0>> wrote: > > > I also just discovered that if i run the same command with > > "subtitle=subtitle.srt" instead, I also get the error message > > > > [AVFilterGraph @ 0xa431640] No such filter: 'subtitle' > > Error opening filters! > > > > Rally at a loss now as I need to do some subtitle embedding asap... > > Your ffmpeg configure line is blank. From subtitle filter documentation: > > "To enable compilation of this filter you need to configure FFmpeg > with --enable-libass." > > See: > http://ffmpeg.org/ffmpeg-filters.html#subtitles > > The ass filter also depends on libass. > > Please do not send multiples of the same question to the mailing list. > > I CCd you since you are not subscribed. There may be other replies. > Check the archives: > https://lists.ffmpeg.org/pipermail/ffmpeg-user/ > _______________________________________________ > ffmpeg-user mailing list > [hidden email] <http:///user/SendEmail.jtp?type=node&node=4674014&i=1> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://ffmpeg-users.933282.n4.nabble.com/Error-AVFilterGraph-0xabe1cc0-No-such-filter-ass-tp4673995p4674014.html > To unsubscribe from Error: [AVFilterGraph @ 0xabe1cc0] No such filter: > 'ass', click here > <http://ffmpeg-users.933282.n4.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=4673995&code=anVuLnNhdHVyYXlAZ21haWwuY29tfDQ2NzM5OTV8NDcyNTczNjU5> > . > NAML > <http://ffmpeg-users.933282.n4.nabble.com/template/NamlServlet.jtp?macro=macro_viewer&id=instant_html%21nabble%3Aemail.naml&base=nabble.naml.namespaces.BasicNamespace-nabble.view.web.template.NabbleNamespace-nabble.view.web.template.NodeNamespace&breadcrumbs=notify_subscribers%21nabble%3Aemail.naml-instant_emails%21nabble%3Aemail.naml-send_instant_email%21nabble%3Aemail.naml> > -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/Error-AVFilterGraph-0xabe1cc0-No-such-filter-ass-tp4673995p4674018.html Sent from the FFmpeg-users mailing list archive at Nabble.com. _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user