Hi Adrien Bustany
thanks for your reply
Can you please run /usr/libexec/tracker-extract -f on your video file
> and
> paste the output somewhere?
->the attachment is the output of the command line
/usr/libexec/tracker-extract -f /home/meego/Videos/rm/rm_30.rm.
According to the output,it seems no extractors the handle the rm mime
type.
"Could not find any extractors to handle metadata type (mime:
application/vnd.rn-realmedia)"
> Tracker has to be configured with --enable-gstreamer-helix I guess, or
> else gstreamer has to have some plugins installed to "understand"
this
> format.
->yes,plugins have been installed.rm/rmvb formate files can be played
from the command line(gst-launch-0.10 playbin2 uri=file://rm_30.rm).
在 2011-04-12二的 09:04 +0300，Adrien Bustany写道：
> On Tue, 12 Apr 2011 09:33:10 +0800, yinxb wrote:
> > Hi
> Hi there
>
> >
> > I encounters a confusing problem that the *.rm/rmvb video files
> > can not be trackered by the following SQL
> Not SQL, SPARQL :)
>
> > "SELECT nie:url(nie:isStoredAs(?video)) WHERE{?video a nmm:Video}";
> You don't need the isStoredAs here, all you need is
> SELECT nie:url(?file) WHERE {?file a nmm:Video}
>
> >
> > I analysed the /usr/share/mime/packages/freedesktop.org.xml
> > that the mime type [<mime-type
> > type="application/vnd.rn-realmedia">]is
> > defined.
> Tracker has to be configured with --enable-gstreamer-helix I guess, or
> else gstreamer has to have some plugins installed to "understand" this
> format.
>
> Can you please run /usr/libexec/tracker-extract -f on your video file
> and
> paste the output somewhere?
>
> >
> > Also,I found only video/* mime type is trackered in
> > tracker-extract-gstreamer.c,is that right?
> It is right
>
> >
> > So,does the qttracker only tracker video files which obtain mime
> > type
> > [video/*]?
> Uuuuh, serious spaghetti mixing here :) qttracker is a library to
> access
> Tracker from Qt applications. It is now deprecated in favor of
> libqtsparql.
>
> The video files will get their metadata extracted if gstreamer can get
> any
> metadata. If it can't (because it has no module installed for a
> specific
> format), then no metadata will be extracted.
>
> >
> > Can anyone give me some suggestion?
> Please check if you have gstreamer modules for that format, and also
> paste
> the output of tracker-extract somewhere as suggested above. You can
> also
> try the gstreamer-helix ./configure option.
>
> Cheers
>
> Adrien
>
> >
> >
> >
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---------------------------------------------------------------------------------------------------
Initializing tracker-extract...
Initializing Storage...
Mount monitors set up for to watch for added, removed and pre-unmounts...
No mounts found to iterate
Setting process priority
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-tiff.so' with:
Specific match for mime:'image/tiff'
Adding
extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-msoffice-xml.so'
with:
Specific match for
mime:'application/vnd.openxmlformats-officedocument.presentationml.presentation'
Specific match for
mime:'application/vnd.openxmlformats-officedocument.presentationml.slideshow'
Specific match for
mime:'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
Specific match for
mime:'application/vnd.openxmlformats-officedocument.wordprocessingml.document'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-mp3.so' with:
Specific match for mime:'audio/mpeg'
Specific match for mime:'audio/x-mp3'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-playlist.so'
with:
Specific match for mime:'audio/x-mpegurl'
Specific match for mime:'audio/mpegurl'
Specific match for mime:'audio/x-scpls'
Specific match for mime:'audio/x-pn-realaudio'
Specific match for mime:'application/ram'
Specific match for mime:'application/vnd.ms-wpl'
Specific match for mime:'application/smil'
Specific match for mime:'audio/x-ms-asx'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-oasis.so'
with:
Generic match for mime:'application/vnd.oasis.opendocument.*'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-gif.so' with:
Specific match for mime:'image/gif'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-xmp.so' with:
Specific match for mime:'application/rdf+xml'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-html.so' with:
Specific match for mime:'text/html'
Specific match for mime:'application/xhtml+xml'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-ps.so' with:
Specific match for mime:'application/x-gzpostscript'
Specific match for mime:'application/postscript'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-pdf.so' with:
Specific match for mime:'application/pdf'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-msoffice.so'
with:
Specific match for mime:'application/msword'
Specific match for mime:'application/vnd.ms-powerpoint'
Specific match for mime:'application/vnd.ms-excel'
Generic match for mime:'application/vnd.ms-*'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-gstreamer.so'
with:
Generic match for mime:'audio/*'
Generic match for mime:'video/*'
Generic match for mime:'image/*'
Specific match for mime:'image/svg+xml'
Specific match for mime:'video/3gpp'
Specific match for mime:'video/mp4'
Specific match for mime:'video/x-ms-asf'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-text.so' with:
Generic match for mime:'text/*'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-icon.so' with:
Specific match for mime:'image/vnd.microsoft.icon'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-jpeg.so' with:
Specific match for mime:'image/jpeg'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-png.so' with:
Specific match for mime:'image/png'
Specific match for mime:'sketch/png'
Adding extractor:'/usr/lib/tracker-0.9/extract-modules/libextract-abw.so' with:
Specific match for mime:'application/x-abiword'
<--- [1|0]
tracker_extract_get_metadata_by_cmdline(uri:'file:///home/meego/Videos/rm/rm_30.rm',
mime:(null))
---- [1|0] Guessing mime type as 'application/vnd.rn-realmedia' for
uri:'file:///home/meego/Videos/rm/rm_30.rm'
---- [1|0] Could not find any extractors to handle metadata type (mime:
application/vnd.rn-realmedia)
---- [1|0]
---- [1|0]
---> [1|0] Success, no error given
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