Qt-interest Archive, April 2008
doubts regarding mediaplayer using Qt framework with avi container format
Message 1 in thread
i have to create a media player using Qtframework.
but Qmovie class is only able to play .gif animations,
is it possible to playback .avi file using Qmovie class.if so how?
and i want to use ffmpeg decoder , i dont know how to integrate the
ffmpeg with Qt framework?
anybody give me some idea or detail regarding this?
regards
madhan kumar.R
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Message 2 in thread
On Thursday 10 April 2008, madhan wrote:
> i have to create a media player using Qtframework.
> but Qmovie class is only able to play .gif animations,
> is it possible to playback .avi file using Qmovie class.if so how?
>
> and i want to use ffmpeg decoder , i dont know how to integrate the
> ffmpeg with Qt framework?
>
> anybody give me some idea or detail regarding this?
You want to look at Qt 4.4 and Phonon.
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Message 3 in thread
Qt-4.4 will include Phonon, a multimedia framework that can easily be
used to create a media player like you describe (the demos section in
the package will in fact include a media player that you can look at).
Which codecs you can use depends on the codecs available on your OS.
Avi or mpeg should in general be easy to install.
-Richard
On Apr 10, 2008, at 2:49 PM, madhan wrote:
> i have to create a media player using Qtframework.
> but Qmovie class is only able to play .gif animations,
> is it possible to playback .avi file using Qmovie class.if so how?
>
> and i want to use ffmpeg decoder , i dont know how to integrate the
> ffmpeg with Qt framework?
>
> anybody give me some idea or detail regarding this?
>
> regards
> madhan kumar.R
>
>
> The information contained in this electronic message and any
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>
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Message 4 in thread
we can install the codecs to OS but how to access it or use it from Qt , say
if i want to use FFmpeg(opensource) whcih provide codecs,i installed it in
my linux pc but how to use the resource from Qt framework. After
installation of FFmpeg it contains a bin,include,lib directories.
regards
madhan kumar.R
> Qt-4.4 will include Phonon, a multimedia framework that can easily be
> used to create a media player like you describe (the demos section in the
> package will in fact include a media player that you can look at).
>
> Which codecs you can use depends on the codecs available on your OS. Avi
> or mpeg should in general be easy to install.
>
> -Richard
>
>
> On Apr 10, 2008, at 2:49 PM, madhan wrote:
>
>> i have to create a media player using Qtframework.
>> but Qmovie class is only able to play .gif animations,
>> is it possible to playback .avi file using Qmovie class.if so how?
>>
>> and i want to use ffmpeg decoder , i dont know how to integrate the
>> ffmpeg with Qt framework?
>>
>> anybody give me some idea or detail regarding this?
>>
>> 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.
>>
>> --
>> 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/
>>
>
> --
> 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.
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Message 5 in thread
Hi,
On Thursday 10 April 2008 13:49:40 madhan wrote:
> i have to create a media player using Qtframework.
> but Qmovie class is only able to play .gif animations,
> is it possible to playback .avi file using Qmovie class.if so how?
Phonon shipped with Qt 4.4.0 depends upon gstreamer as the backend. Check the
output when you configure Qt 4.4.0 to see if it finds the required gstreamer
headers and libs.
Some other possible backends can be found here:
http://code.google.com/p/phonon-vlc-mplayer/
One of these 3 backends along with correctly installed codecs should be able
to play pretty much anything.
HTH,
Sean
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Message 6 in thread
Hi Madhan,
On Thursday 10 April 2008 10:01:46 madhan kumar wrote:
> could u please explain me in detail.
OK I'll try. First, please reply to the list so that a record is kept for
others to find later.
First of all to use phonon with just Qt you need to be using one of the QT
4.4.0 pre-releases. The final version of 4.4.0 will be released within the
next month or so. You can download such a release form the trolltech website
or form your own download area if you are a commercial customer.
Phonon itself is essentially a wrapper API that provides a consistent Qt-type
interface to a series of multimedia backends that do the actual work of
playing media. There is more to it than this but this is a good starting
point.
Therefore to do any real work such as playing media in the avi container
format, it requires one or more suitable bacends that are capable of playing
that kind of media. Gstreamer is the default backend that Phonon as shipped
with Qt 4.4.0 looks for when you build Qt from source. The output from the
configure program used in configuring the Qt build tells you if it
successfully finds the gstreamer pre-requisites (headers and libs).
The link I gave you is to some alternative backends based upon VLC and mplayer
which are both also very capable media playback systems. I don't know myself
how to build them but I'm sure if you download the source tarballs there will
be some instructions in there. I've not tried them myself as yet.
HTH,
Sean
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