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How can I get the error msg after call the gst call?

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michael young

How can I get the error msg after call the gst call?

Hi all:
How can I get the error message when I call the gst call. For example , if I called the gst_element_query_duration(),

and it return false, and now how can I get a description for the failure? Is there some function like strerror() ? tks :)

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Stefan Sauer

Re: How can I get the error msg after call the gst call?

On 18.11.2010 10:20, michael young wrote:
> Hi all:
> How can I get the error message when I call the gst call. For
> example , if I called the gst_element_query_duration(),
> and it return false, and now how can I get a description for the
> failure? Is there some function like strerror() ? tks :)

Nope. You would need to check the gstreamer log - run your app like
GST_DEBUG="*:5" ./my-app 2>debug.log.

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: How can I get the error msg after call the gst call?

Hi Stefan:

when I run my app like you said, I got a big log file. I just run my app 16 seconds and I got

a log file with 40M size! Is this all right ?? and I think It's so difficult to find any useful message from the big file!!

On Thu, Nov 18, 2010 at 10:09 PM, Stefan Kost <[hidden email]> wrote:

On 18.11.2010 10:20, michael young wrote:
> Hi all:
> How can I get the error message when I call the gst call. For
> example , if I called the gst_element_query_duration(),
> and it return false, and now how can I get a description for the
> failure? Is there some function like strerror() ? tks :)

Nope. You would need to check the gstreamer log - run your app like
GST_DEBUG="*:5" ./my-app 2>debug.log.

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
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Spend less time writing and rewriting code and more time creating great
experiences on the web. Be a part of the beta today
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michael young

Re: How can I get the error msg after call the gst call?

Hi Stefan:

In my app , I always cannot call the gst_element_query_duration() success, so I want get

the error information by some way. and I generated the debug log as you told me , but I still

cannot find any information about gst_element_query_duration()? Do you know why? tks:)

On Fri, Nov 19, 2010 at 9:27 AM, michael young <[hidden email]> wrote:

Hi Stefan:
when I run my app like you said, I got a big log file. I just run my app 16 seconds and I got

a log file with 40M size! Is this all right ?? and I think It's so difficult to find any useful message from the big file!!

On Thu, Nov 18, 2010 at 10:09 PM, Stefan Kost <[hidden email]> wrote:

On 18.11.2010 10:20, michael young wrote:
> Hi all:
> How can I get the error message when I call the gst call. For
> example , if I called the gst_element_query_duration(),
> and it return false, and now how can I get a description for the
> failure? Is there some function like strerror() ? tks :)

Nope. You would need to check the gstreamer log - run your app like
GST_DEBUG="*:5" ./my-app 2>debug.log.

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
_______________________________________________
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Stefan Sauer

Re: How can I get the error msg after call the gst call?

In reply to this post by michael young

On 19.11.2010 03:27, michael young wrote:
> Hi Stefan:
> when I run my app like you said, I got a big log file. I just run
> my app 16 seconds and I got
> a log file with 40M size! Is this all right ?? and I think It's so
> difficult to find any useful message from the big file!!

You can put a exit() call after the error and then look for the error
from the bottom of the log file upwards. You can also use "*:4" to have
less info. Once you are knowing what you are looking for you might be
able to restrict it further.

Stefan

>
> On Thu, Nov 18, 2010 at 10:09 PM, Stefan Kost <[hidden email]
> <mailto:[hidden email]>> wrote:
>
> On 18.11.2010 10:20, michael young wrote:
> > Hi all:
> > How can I get the error message when I call the gst call. For
> > example , if I called the gst_element_query_duration(),
> > and it return false, and now how can I get a description for the
> > failure? Is there some function like strerror() ? tks :)
>
> Nope. You would need to check the gstreamer log - run your app like
> GST_DEBUG="*:5" ./my-app 2>debug.log.
>
> 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]
> <mailto:[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
> [hidden email]
> <mailto:[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
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>