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Why gst_element_query_duration() always return false

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michael young

Why gst_element_query_duration() always return false

Hi all:

I write a simple player, but I found that it's always return false when I call the gst_element_duration(), so I cannot get the

right duration of the media file . and anybody know why ?

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Stefan Sauer

Re: Why gst_element_query_duration() always return false

On 19.11.2010 11:23, michael young wrote:
> Hi all:
> I write a simple player, but I found that it's always return false
> when I call the gst_element_duration(), so I cannot get the
> right duration of the media file . and anybody know why ?

Maybe you could start providing more info. Is the source code for your
project available somewhere. Are you using playbin2? Are you querying
the duration from the pipeline? if not what element are you querying the
duration from. When do you query (once it is playing?)

Stefan

>
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
> Spend less time writing and rewriting code and more time creating great
> experiences on the web. Be a part of the beta today
> http://p.sf.net/sfu/msIE9-sfdev2dev
>
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>

michael young

Re: Why gst_element_query_duration() always return false

When I run my app upon the gstreamer-0.10.25, I can get the right duration thought the gst_element_query_duration(), But I cannot get it

upon the gstreamer-0.10.30. and I am sure the code is the some one. and the code you can get from https://wraithmedia.svn.sourceforge.net/svnroot/wraithmedia . So anybody can help?

On Fri, Nov 19, 2010 at 6:29 PM, Stefan Kost <[hidden email]> wrote:

On 19.11.2010 11:23, michael young wrote:
> Hi all:
> I write a simple player, but I found that it's always return false
> when I call the gst_element_duration(), so I cannot get the
> right duration of the media file . and anybody know why ?

Maybe you could start providing more info. Is the source code for your
project available somewhere. Are you using playbin2? Are you querying
the duration from the pipeline? if not what element are you querying the
duration from. When do you query (once it is playing?)

Stefan

>
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
> Spend less time writing and rewriting code and more time creating great
> experiences on the web. Be a part of the beta today
> http://p.sf.net/sfu/msIE9-sfdev2dev
>
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>

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Beautiful is writing same markup. Internet Explorer 9 supports
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Spend less time writing and rewriting code and more time creating great
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michael young

Re: Why gst_element_query_duration() always return false

Is the gst_element_query_duration() depend on some plugins? Today, I just install some more Gstreamer's base plugins and some ugly plugins , then the duration can be got successfully! plugins I install are:

alsa

ogg

pango

theora

vorbis

gconfelements

so which one will effect the gst_element_query_duration().

On Sat, Nov 20, 2010 at 10:06 AM, michael young <[hidden email]> wrote:

When I run my app upon the gstreamer-0.10.25, I can get the right duration thought the gst_element_query_duration(), But I cannot get it
upon the gstreamer-0.10.30. and I am sure the code is the some one. and the code you can get from https://wraithmedia.svn.sourceforge.net/svnroot/wraithmedia . So anybody can help?

On Fri, Nov 19, 2010 at 6:29 PM, Stefan Kost <[hidden email]> wrote:

On 19.11.2010 11:23, michael young wrote:
> Hi all:
> I write a simple player, but I found that it's always return false
> when I call the gst_element_duration(), so I cannot get the
> right duration of the media file . and anybody know why ?

Maybe you could start providing more info. Is the source code for your
project available somewhere. Are you using playbin2? Are you querying
the duration from the pipeline? if not what element are you querying the
duration from. When do you query (once it is playing?)

Stefan

>
> ------------------------------------------------------------------------------
> Beautiful is writing same markup. Internet Explorer 9 supports
> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
> Spend less time writing and rewriting code and more time creating great
> experiences on the web. Be a part of the beta today
> http://p.sf.net/sfu/msIE9-sfdev2dev
>
>
> _______________________________________________
> gstreamer-devel mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>

------------------------------------------------------------------------------
Beautiful is writing same markup. Internet Explorer 9 supports
standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3.
Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today
http://p.sf.net/sfu/msIE9-sfdev2dev
_______________________________________________
gstreamer-devel mailing list
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