[gst-devel] Adding new tee src%d to a running pipeline...

[Nathanael D. Noblet]

Hello everyone I'm having some issues getting a new src pad from a tee 
on a running pipeline. It's nearly working but I can't get it past that 
last step...

So here's the deal, I have a simple queue that goes to an xvimagesink. 
When I click a gtk button it calls a function that is setup to create 
queue/filesrc pipe and request another src pad from the tee element 
already in the running pipeline. Hook it all up to the running pipe and 
let it save to a file as it is viewed...  The file is created, but size 
0, and my xvsink continues to play on... From some debugging print 
statements I've added it looks like the pipeline comes into my button 
callback in the PLAYING state, but then says it is the PAUSED state as I 
start adding things to it, which seems odd as it is still playing...

Here is the relevant code:

GstElement *bin = gst_bin_new ("recording_bin");

g_print("BIN: %d PIPELINE %d\n",GST_STATE(bin),GST_STATE(pipeline));

GstPad *srcpad = NULL;
GstPad *sinkpad = NULL;

filesink  = gst_element_factory_make ("filesink",  "filesink");
filequeue = gst_element_factory_make ("queue2",    "filequeue");

g_object_set (G_OBJECT (filesink), "location", current_dir, NULL);

gst_bin_add_many(GST_BIN(bin),filequeue,filesink,NULL);
gst_element_link(filequeue,filesink);

sinkpad = gst_element_get_static_pad(filequeue,"sink");
gst_element_add_pad(bin,gst_ghost_pad_new("sink",sinkpad));
gst_object_unref(GST_OBJECT(sinkpad));

GstStateChangeReturn ret = gst_element_set_state(bin, GST_STATE_PAUSED);
g_print("STATE CHANGED TO PAUSED: %d\n",ret);

gst_bin_add(GST_BIN(pipeline), bin);

GstElement *tee = gst_bin_get_by_name (GST_BIN(pipeline),"tee");

sinkpad = gst_element_get_pad(filequeue,"sink");
srcpad  = gst_element_get_request_pad(tee,"src2");
gst_pad_set_blocked(srcpad,TRUE);
gst_pad_set_active(srcpad,TRUE);
ret = gst_element_set_state(bin, GST_STATE_PLAYING);
g_print("STATE CHANGED TO PLAYING: %d BIN: %d PIPELINE 
%d\n",ret,GST_STATE(bin),GST_STATE(pipeline));

gst_pad_link(srcpad,sinkpad);
gst_pad_set_active(srcpad,TRUE);
gst_pad_set_blocked(srcpad,FALSE);

g_print("STATE CHANGED TO PLAYING: %d BIN: %d PIPELINE 
%d\n",ret,GST_STATE(bin),GST_STATE(pipeline));


Can anyone help me out with this?

Thanks,
-- 
Nathanael d. Noblet