plugin mgp123 not compiled (and not properly loaded even compiled manually)

[Weipeng He]

Hi Tim,

Problem solved. Thank you!

Best,
Weipeng

On 06/19/2014 01:51 PM, Tim Müller wrote:
> On Thu, 2014-06-19 at 13:41 +0200, Weipeng He wrote:
>
> Hi,
>
>> I am trying to compile gst-plugins-bad from source on Pidora.
>> At first, I used configure && make && make install. Everything is fine
>> except several plugins are not compiled (including mpg123). Obviously
>> there are external libraries missing. Then I downloaded the libmpg123
>> source and compiled it.
>>
>> Now, here comes the question #1. When I try to configure gst-plugins-bad
>> again, it still says libmpg123 not found and plugin mpg123 will not
>> compiled. I am sure libmpg123.so is in /usr/local/lib and mpg123.h is in
>> /usr/local/include.
> Try:
>
>   $ export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
>   $ ./configure
>
> Your errors mean it didn't link against the library when building the
> plugin, which is unsurprising seeing that configure didn't find it.
>
>    Cheers
>     -Tim
>
>> So, I went to directory ext/mpg123 and do make && make install. It was
>> successfully compiled.
>>
>> Now, question #2. When i tried:
>> $ gst-inspect-1.0 /usr/local/lib/gstreamer-1.0/libgstmpg123.so
>>
>> The plugin can't be properly loaded, giving the following output:
>> (gst-plugin-scanner:29481): GStreamer-WARNING **: Failed to load plugin
>> '/usr/local/lib/gstreamer-1.0/libgstmpg123.so':
>> /usr/local/lib/gstreamer-1.0/libgstmpg123.so: undefined symbol: mpg123_new
>>
>> (gst-inspect-1.0:29480): GStreamer-WARNING **: Failed to load plugin
>> '/usr/local/lib/gstreamer-1.0/libgstmpg123.so':
>> /usr/local/lib/gstreamer-1.0/libgstmpg123.so: undefined symbol: mpg123_new
>> Could not load plugin file: Opening module failed:
>> /usr/local/lib/gstreamer-1.0/libgstmpg123.so: undefined symbol: mpg123_new
>>
>> And I also tryied:
>> $ LD_PRELOAD=/usr/local/lib/libmpg123.so gst-inspect-1.0
>> /usr/local/lib/gstreamer-1.0/libgstmpg123.so
>> Then it gives the right result.
>>
>> I don't want to add "LD_PRELOAD=/usr/local/lib/libmpg123.so" for every
>> run. How can I solve this?
>> Thank you!
>>
>> Best,
>> Weipeng
>>
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