[gst-devel] How can I set properties of plugins, loaded by playbin2, launched with gst-launch?

[wl2776]

Stefan Kost wrote:
> 
>> This loads my custom rtspsrc plugin, situated in the current directory.
>> I'd like to set its 'debug' property to true.
> 
> gst-launch --gst-plugin-path=`pwd` --gst-debug=rtspsrc:5 playbin2
> uri=rtsp://192.168.24.21/1286_bbc_world_news_2009_06_04_22_00_000.mpg
> rtspsrc
> 0::debug=true
> 
> if your instance of rtspsrc is called "rtspsrc0".
> 

Unfortunately, this doesn't work. 
playbin2 creates the element "source", but playbin2 creates the rtspsrc much
after gst-launch parses the command line.

Log says the following

0:00:00.172492876  4127  0x8428050 DEBUG    GST_ELEMENT_FACTORY
gstelementfactory.c:425:gst_element_factory_create: created element
"playbin2"
0:00:00.172511292  4127  0x8428050 DEBUG           GST_PIPELINE
parse.l:141:_gst_parse_yylex: flex: SPACE: [ ]
0:00:00.172526010  4127  0x8428050 DEBUG           GST_PIPELINE
parse.l:75:_gst_parse_yylex: flex: ASSIGNMENT:
uri=rtsp://192.168.24.21/1286_bbc_world_news_2009_06_04_22_00_000.mpg
0:00:00.172555820  4127  0x8428050 DEBUG               playbin2
gstplaybin2.c:1169:gst_play_bin_set_uri: set new uri to
rtsp://192.168.24.21/1286_bbc_world_news_2009_06_04_22_00_000.mpg
0:00:00.172576792  4127  0x8428050 DEBUG           GST_PIPELINE
parse.l:141:_gst_parse_yylex: flex: SPACE: [ ]
0:00:00.172591013  4127  0x8428050 DEBUG           GST_PIPELINE
parse.l:75:_gst_parse_yylex: flex: ASSIGNMENT: source::debug=true
0:00:00.172611478  4127  0x8428050 INFO                 default
gstchildproxy.c:195:gst_child_proxy_lookup: no such object source
0:00:00.172637905  4127  0x8428050 DEBUG           GST_PIPELINE
parse.l:141:_gst_parse_yylex: flex: SPACE: [ ]
0:00:00.172662693  4127  0x8428050 DEBUG           GST_PIPELINE
./grammar.y:884:_gst_parse_launch: got 1 elements and 0 links
[ skip ]
0:00:00.178681232  4127  0x8428050 INFO      GST_PLUGIN_LOADING
gstplugin.c:658:gst_plugin_load_file: plugin
"/home/wl/AVIK/player/rtspsrc/src/.libs/libgstrtsp.so" loaded
0:00:00.178705080  4127  0x8428050 DEBUG     GST_PLUGIN_LOADING
gstpluginfeature.c:114:gst_plugin_feature_load: loaded plugin rtsp
0:00:00.178723241  4127  0x8428050 INFO     GST_ELEMENT_FACTORY
gstelementfactory.c:400:gst_element_factory_create: creating element
"rtspsrc" named "source"
0:00:00.178745758  4127  0x8428050 DEBUG                default
gstelement.c:268:gst_element_base_class_init: type GstRTSPSrc : factory
0x8558090
0:00:00.179068806  4127  0x8428050 DEBUG                GST_BUS
gstbus.c:194:gst_bus_init:<GstBus at 0x847e658> created


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