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i had installed Qt4.4 prerealease with phonon. when i execute the example musicplayer in it i get the error like this Phonon::createPath: Cannot connect Phonon::MediaObject(no objectName) to Phonon::AudioOutput(no objectName). and another warning that backend not loaded i didnt installed phonon backend yet... i am using linux and i thought of installing Gstreamer , if i have to install it where to install, inside Qt 4.4 or just install in the system, so that Qt will make use of it by itself. regards madhan kumar.R The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information. -- [ signature omitted ]
On Apr 15, 2008, at 12:28 PM, madhankumar wrote: > i had installed Qt4.4 prerealease > with phonon. when i execute the example musicplayer in it > > i get the error like this > > Phonon::createPath: Cannot connect Phonon::MediaObject(no > objectName) to > Phonon::AudioOutput(no objectName). > > and another warning that > backend not loaded > > i didnt installed phonon backend yet... This warnings you get means that phonon could not find any backend plugins to load. And the reason for this is that you have not installed gstreamer yet. Do this before you build/install Qt. You should not have to decide where to install gstreamer, your package management tool should handle this for you (if you e.g. use Synaptic or just apt-get from the command line in case of Ubuntu). Installing gstreamer is a separate process that has nothing to do with Qt. When you have build Qt, the plugin should then be located in $QTDIR/ plugins/phonon_backend/libphonon_gstreamer.so. -Richard -- [ signature omitted ]
is it necassary to install gstreamer before installation of phonon? i had installed Qt 4.4 , shall i install Gstreamer now. regards madhan kumar.R On Tue, 2008-04-15 at 08:41 +0200, Richard wrote: > On Apr 15, 2008, at 12:28 PM, madhankumar wrote: > > > i had installed Qt4.4 prerealease > > with phonon. when i execute the example musicplayer in it > > > > i get the error like this > > > > Phonon::createPath: Cannot connect Phonon::MediaObject(no > > objectName) to > > Phonon::AudioOutput(no objectName). > > > > and another warning that > > backend not loaded > > > > i didnt installed phonon backend yet... > > This warnings you get means that phonon could not find any backend > plugins to load. And the reason for this is that you have not > installed gstreamer yet. Do this before you build/install Qt. You > should not have to decide where to install gstreamer, your package > management tool should handle this for you (if you e.g. use Synaptic > or just apt-get from the command line in case of Ubuntu). Installing > gstreamer is a separate process that has nothing to do with Qt. > > When you have build Qt, the plugin should then be located in $QTDIR/ > plugins/phonon_backend/libphonon_gstreamer.so. > > -Richard > > > -- > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx with "unsubscribe" in the subject or the body. > List archive and information: http://lists.trolltech.com/qt-interest/ > The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information. -- [ signature omitted ]
> > is it necassary to install gstreamer before installation of phonon? Technically speaking, Phonon consist of two parts: the frontend that your application links against, and the backends plugin that is loaded at run-time. You can build phonon frontend without gstreamer, but not the backend plugin that it needs. So yes, you must install gstreamer before you build Qt. The easiest way for you now is to install gstreamer (e.g sudo apt-get install .*gstreamer.*), and then build and install Qt again from scratch. -Richard > > i had installed Qt 4.4 , shall i install Gstreamer now. > > regards > madhan kumar.R > > > > On Tue, 2008-04-15 at 08:41 +0200, Richard wrote: >> On Apr 15, 2008, at 12:28 PM, madhankumar wrote: >> >>> i had installed Qt4.4 prerealease >>> with phonon. when i execute the example musicplayer in it >>> >>> i get the error like this >>> >>> Phonon::createPath: Cannot connect Phonon::MediaObject(no >>> objectName) to >>> Phonon::AudioOutput(no objectName). >>> >>> and another warning that >>> backend not loaded >>> >>> i didnt installed phonon backend yet... >> >> This warnings you get means that phonon could not find any backend >> plugins to load. And the reason for this is that you have not >> installed gstreamer yet. Do this before you build/install Qt. You >> should not have to decide where to install gstreamer, your package >> management tool should handle this for you (if you e.g. use Synaptic >> or just apt-get from the command line in case of Ubuntu). Installing >> gstreamer is a separate process that has nothing to do with Qt. >> >> When you have build Qt, the plugin should then be located in $QTDIR/ >> plugins/phonon_backend/libphonon_gstreamer.so. >> >> -Richard >> >> >> -- >> To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx >> with "unsubscribe" in the subject or the body. >> List archive and information: http://lists.trolltech.com/qt-interest/ >> > > > The information contained in this electronic message and any > attachments to this message are intended for the exclusive use of > the addressee(s) and may contain proprietary, confidential or > privileged information. If you are not the intended recipient, you > should not disseminate, distribute or copy this e-mail. Please > notify the sender immediately and destroy all copies of this message > and any attachments contained in it. > > Contact your Administrator for further information. > > -- > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx > with "unsubscribe" in the subject or the body. > List archive and information: http://lists.trolltech.com/qt-interest/ > -- [ signature omitted ]
i had downloaded following two packages from gstreamer website gstreamer 0.10.12 gst-plugin-base-0.10.12 is it necassary to install both and the first one is enough. when i m installing gst-plugin-base 0.10.12 it gives configure error: liboil 0.3.8 or later, when i excecute ./configure. then i installed liboil 0.3.8 but still i get the error. plz help with the info what you know. regards madhan kumar.R > > > > is it necassary to install gstreamer before installation of phonon? > > > Technically speaking, Phonon consist of two parts: the frontend that > your application links against, and the backends plugin that is loaded > at run-time. You can build phonon frontend without gstreamer, but not > the backend plugin that it needs. So yes, you must install gstreamer > before you build Qt. > > > The easiest way for you now is to install gstreamer (e.g sudo apt-get > install .*gstreamer.*), and then build and install Qt again from > scratch. > > > -Richard > > > > > > > i had installed Qt 4.4 , shall i install Gstreamer now. > > > > regards > > madhan kumar.R > > > > > > > > On Tue, 2008-04-15 at 08:41 +0200, Richard wrote: > > > On Apr 15, 2008, at 12:28 PM, madhankumar wrote: > > > > > > > i had installed Qt4.4 prerealease > > > > with phonon. when i execute the example musicplayer in it > > > > > > > > i get the error like this > > > > > > > > Phonon::createPath: Cannot connect Phonon::MediaObject(no > > > > objectName) to > > > > Phonon::AudioOutput(no objectName). > > > > > > > > and another warning that > > > > backend not loaded > > > > > > > > i didnt installed phonon backend yet... > > > > > > This warnings you get means that phonon could not find any > > > backend > > > plugins to load. And the reason for this is that you have not > > > installed gstreamer yet. Do this before you build/install Qt. You > > > > > > should not have to decide where to install gstreamer, your > > > package > > > management tool should handle this for you (if you e.g. use > > > Synaptic > > > or just apt-get from the command line in case of Ubuntu). > > > Installing > > > gstreamer is a separate process that has nothing to do with Qt. > > > > > > When you have build Qt, the plugin should then be located in > > > $QTDIR/ > > > plugins/phonon_backend/libphonon_gstreamer.so. > > > > > > -Richard > > > > > > > > > -- > > > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx > > > with "unsubscribe" in the subject or the body. > > > List archive and information: > > > http://lists.trolltech.com/qt-interest/ > > > > > > > > > The information contained in this electronic message and any > > attachments to this message are intended for the exclusive use of > > the addressee(s) and may contain proprietary, confidential or > > privileged information. If you are not the intended recipient, you > > should not disseminate, distribute or copy this e-mail. Please > > notify the sender immediately and destroy all copies of this message > > and any attachments contained in it. > > > > Contact your Administrator for further information. > > > > -- > > To unsubscribe - send a mail to qt-interest-request@xxxxxxxxxxxxx > > with "unsubscribe" in the subject or the body. > > List archive and information: > > http://lists.trolltech.com/qt-interest/ > > > > > > -- > Richard Moe Gustavsen > Software Engineer II, Platform Team (Mac) > Trolltech ASA, Sandakerveien 116, NO-0484 Oslo, Norway > > The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information. -- [ signature omitted ]
Am Dienstag, 15. April 2008 schrieb madhankumar: > i had downloaded following two packages from gstreamer website > gstreamer 0.10.12 > gst-plugin-base-0.10.12 > is it necassary to install both and the first one is enough. > when i m installing gst-plugin-base 0.10.12 it gives configure error: > liboil 0.3.8 or later, when i excecute ./configure. > then i installed liboil 0.3.8 but still i get the error. > plz help with the info what you know. Well, it is (should be?) quite obvious that if you want to compile against some library you also need the packages containing the header-files. And most distributions ship them in separate packages named *-dev. So you would need gstreamer-dev at least... Arnold -- [ signature omitted ]
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