Re: Closed Caption

Tech-Archive recommends: Repair Windows Errors & Optimize Windows Performance

From: jquiet (tester,testingplace,net)
Date: 02/29/04 

Date: Sat, 28 Feb 2004 20:03:45 -0700

Thanks for the tip. I'll have to see what I can do with that. dvr-ms is an
mpeg-2 in a wrapper. I'm not sure but I think one problem is that most
programs that extract the MPEG-2 also chop out the closed captioning info.
So I may be stuck using graphEdit to get the closed captioning, but I have
to investigate more.

"Alessandro Angeli [MVP::DigitalMedia]" <nobody@nowhere.in.the.net> wrote in
message news:ekNEUPm$DHA.1796@TK2MSFTNGP12.phx.gbl...
> I'll add my 2 cents to this...
>
> VobSub can extract the CC user data from the video stream of
> VOB files and save it as a perfectly synchronized text file.
> It's a better approach IMHO that dumping the CC and then
> running CCParser. Moreover, VobSub is open source if you
> want to extract the CC parsing code. In the end, VOB files
> are just MPEG2 program streams, so VobSub may work with any
> MPEG2 PS. I don't know much about MS's DVR files, but since
> they should be created by encoders like the PVR-250/350,
> they may just be MPEG2 PSs.
>
>
>
> jquiet wrote:
>
> > I take it the captionkit doesn't extract captions from
> > Microsoft'd dvr-ms format, but this seems right up your
> > alley.
> >
> > "Neil Smith [MVP Digital Media]" <neil@nospam.com> wrote
> > in message news:4040e839.30070949@news.blueyonder.co.uk...
> >> On Sat, 28 Feb 2004 11:59:20 -0700, "jquiet"
> >> <tester,testingplace,net> wrote:
> >>
> >>> Neil, I think what I figured could be perfected (new
> >>> program written) so that the captioning is captured on
> >>> the fly and appended to a SAMI file but I don't know if
> >>> the SAMI file is streamed to the user or if the Media
> >>> player
> >>
> >> It's all at once :-p
> >>
> >> The w3c have a timed text working group who are due to
> >> publish an authoring format 'some time soon' which
> >> should include provision for segment streaming
> >>
> >> Like anything at the w3c it goes through endless
> >> revisions and discussion and reaches public release
> >> status after barely a few years ;-(
> >>
> >> LOL
> >>
> >>> expects to see it all at once. For a half hour TV show
> >>> it was only 31 KB. My last post has my progress so far.
> >>> As far as closed captioning it's pretty much done. I'm
> >>> having audio/video synch problems.
> >>>
> >>> "Neil Smith [MVP Digital Media]" <neil@nospam.com>
> >>> wrote in message
> >>> news:4040e386.28868420@news.blueyonder.co.uk...
> >>>> Keep posting, sounds like an interesting tack.
> >>>>
> >>>> On Fri, 27 Feb 2004 16:51:06 -0700, "jquiet"
> >>>> <tester,testingplace,net> wrote:
> >>>>
> >>>>> I should be using the dump filter instead but I have
> >>>>> to compile it.
> >>>>>
> >>>>> "jquiet" <tester,testingplace,net> wrote in message
> >>>>> news:e$Qsy4X$DHA.3804@TK2MSFTNGP09.phx.gbl...
> >>>>>> I did the following:
> >>>>>> Graphedit
> >>>>>> Render media file, dvr-ms file
> >>>>>> Insert filter, File Writer
> >>>>>> Connected Line 21 from Nvidia Video Decoder to "in"
> >>>>>> on File Writer filter I get an error that filters
> >>>>>> cannot agree on a connection
> >>>>>>
> >>>>>> so I'm stuck
> >>>>>>
> >>>>>> "jquiet" <tester,testingplace,net> wrote in message
> >>>>>> news:%23RIoCHX$DHA.1456@TK2MSFTNGP09.phx.gbl...
> >>>>>>> Melanie, I'm not doing anything live but my problem
> >>>>>>> sounds similar. I have MPEG-2 files with closed
> >>>>>>> captioning and I am trying to create a
> > WMV
> >>> file
> >>>>>> and
> >>>>>>> an accompanying SAMI file so that I can play the
> >>>>>>> video with closed captioning in Windows Media
> >>>>>>> Player. This is what I have found out:
> >>>>>>>
> >>>>>>> GraphEdit can be used to extract line 21 to a file
> >>>>>>> A program called CCParser can convert the file to a
> >>>>>>> SubRip format file (.srt)
> >>>>>>> A program called SubSync can convert .srt to .smi
> >>>>>>> (SAMI)
> >>>>>>>
> >>>>>>> The CCParser zip file contains instructions and a
> >>>>>>> picture of a graph for GraphEdit:
> >>>>>>> http://www.divx-digest.com/software/ccparser.html
> >>>>>>>
> >>>>>>> I haven't tried this yet. If you get ahead of me or
> >>>>>>> find some other solution please post.
> >>>>>>>
> >>>>>>> "Melanie" <melanie.schmahl@assembly.ab.ca> wrote in
> >>>>>>> message
> >>>>>>> news:uuqcDCV$DHA.2660@TK2MSFTNGP10.phx.gbl...
> >>>>>>>> I am told that the captions are overlaid on the
> >>>>>>>> video in line
> > 21.
> >>> My
> >>>>>>> video
> >>>>>>>> capture card can decode closed captioning but I am
> >>>>>>>> not sure how
> > I
> >>> set
> >>>>>> that
> >>>>>>>> up. I set the card to do the scripting in the
> >>>>>>>> properties of the encoding session but I am
> >>>>>>>> confused on how or where it creates the SAMI file?
> >>>>>>>> "Neil Smith [MVP Digital Media]" <neil@nospam.com>
> >>>>>>>> wrote in message
> >>>>>>>> news:40369759.382890@news.blueyonder.co.uk...
> >>>>>>>>> Your users need to be informed to show their
> >>>>>>>>> caption area on the media player, unless the
> >>>>>>>>> captions are overlaid on the video already -
> >>>>>>>>> which usually results in difficult to read
> >>>>>>>>> captions due to the compression.
> >>>>>>>>>
> >>>>>>>>> Are your captions in SAMI format ? Usually you
> >>>>>>>>> have to
> > provide
> >>> an
> >>>>> ASX
> >>>>>>>>> file which contains both the URL to the feed,
> >>>>>>>>> followed by ?SAMI= followed by the URL to the
> >>>>>>>>> sami file eg
> >>>>>>>>>
> >>>>>>>>>
> mms://server/path/to/video.wmv?sami=/path/to/sami_file.smi
> >>>>>>>>>
> >>>>>>>>> Your users can find out how to enable / show
> >>>>>>>>> captions on media player
> >>>>>>>>> 6.4 / 7 / 9 and Real player here :
> >>>>>>>>>
> >>>>>>>>> http://www.captionkit.com/switchoncaptions.php
> >>>>>>>>>
> >>>>>>>>> Regards - Neil Smith MVP
> >>>>>>>>>
> >>>>>>>>> On Fri, 20 Feb 2004 11:26:09 -0700, "Melanie"
> >>>>>>>>> <melanie.schmahl@assembly.ab.ca> wrote:
> >>>>>>>>>
> >>>>>>>>>> I am broadcasting a live stream - included in
> >>>>>>>>>> the feed is CC.
> >>> How
> >>>>> do
> >>>>>> I
> >>>>>>>>>> provide this to my users?
> >>>>>>>>>>
> >>>>>>>>>>
> >>>>>>>>>
> >>>>>>>>>
> ========================================================
> >>>>>>>>> CaptionKit http://www.captionkit.com : Produce
> >>>>>>>>> subtitled internet media, transcripts and
> >>>>>>>>> searchable video. Supports Real Player, Quicktime
> >>>>>>>>> and Windows Media Player.
> >>>>>>>>>
> >>>>>>>>> VideoChat with friends online, get Freshly
> >>>>>>>>> Toasted every
> >>>>>>>>> day at http://www.fresh-toast.net : NetMeeting
> >>>>>>>>> solutions
> >>>>>>>>> for a connected world.
> >>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>>>
> >>>>>>
> >>>>>>
> >>>>>
> >>>>>
> >>>>
> >>>>
> ========================================================
> >>>> CaptionKit http://www.captionkit.com : Produce
> >>>> subtitled
> >>>> internet media, transcripts and searchable video.
> >>>> Supports
> >>>> Real Player, Quicktime and Windows Media Player.
> >>>>
> >>>> VideoChat with friends online, get Freshly Toasted
> >>>> every
> >>>> day at http://www.fresh-toast.net : NetMeeting
> >>>> solutions
> >>>> for a connected world.
> >>>
> >>>
> >>
> >> ========================================================
> >> CaptionKit http://www.captionkit.com : Produce subtitled
> >> internet media, transcripts and searchable video.
> >> Supports
> >> Real Player, Quicktime and Windows Media Player.
> >>
> >> VideoChat with friends online, get Freshly Toasted every
> >> day at http://www.fresh-toast.net : NetMeeting solutions
> >> for a connected world.
>
> --
>
> /**
> * Alessandro Angeli
> *
> * MVP::DigitalMedia
> *
> * a dot angeli at biosys dot net
> */
>
>

Relevant Pages

  • Re: Closed Caption
    ... > is an mpeg-2 in a wrapper. ... > that most programs that extract the MPEG-2 also chop out the closed ... >> VOB files and save it as a perfectly synchronized text file. ... >> are just MPEG2 program streams, so VobSub may work with any ...
    (microsoft.public.windowsmedia.encoder)
  • DVD audio extraction
    ... I can get audio extracted from vob files with mplayer, ... For example, I might like to say, extract enough chapters from title 1 ... Seems like I loose my title/chapter info when I access the vob files ... files to mark the chapter locations. ...
    (Debian-User)
  • Re: Extracting subtitles or closed captioning from dvr-ms
    ... You have to extract tthe MPEG first. ... Or are you converting the DVR-MS to MPEG first? ... > closed captioning so that I don't lose that. ...
    (microsoft.public.windows.mediacenter)