spotifyaudiosrc usage

[Jonas Kvinge]

Hi,

I'm trying to use spotifyaudiosrc.

I use playbin in a music player with a custom audio sink setup using a 
bin. The basic pipeline is: queue2 ! audioconvert ! audiosink where I 
add the queue to the bin using a ghost pad then set the bin on the 
playbin pipeline. I assume I can not use playbin with spotifyaudiosrc so 
I have to set up a different pipeline when playing spotify songs?

I tried the following code:

gst_init(nullptr, nullptr); GstElement *spotifyaudiosrc = 
gst_element_factory_make("spotifyaudiosrc", "spotifyaudiosrc0"); 
g_object_set(G_OBJECT(spotifyaudiosrc), "track", 
"spotify:track:3i3P1mGpV9eRlfKccjDjwi", nullptr); 
g_object_set(G_OBJECT(spotifyaudiosrc), "username", "user", nullptr); 
g_object_set(G_OBJECT(spotifyaudiosrc), "password", "pass", nullptr); 
GstElement *oggdemux = gst_element_factory_make("oggdemux", 
"oggdemux0"); g_signal_connect(G_OBJECT(oggdemux), "pad-added", 
G_CALLBACK(&PadAdded), this); GstElement *vorbisdec = 
gst_element_factory_make("vorbisdec", "vorbisdec0"); GstElement 
*audioconverter = gst_element_factory_make("audioconvert", 
"audioconvert0"); vorbisdec_ = vorbisdec; GstElement *audiosink = 
gst_element_factory_make("alsasink", "alsasink"); 
g_object_set(G_OBJECT(audiosink), "device", "hw:1,0", nullptr); 
gst_element_link(spotifyaudiosrc, oggdemux); gst_element_link(oggdemux, 
vorbisdec); gst_element_link(vorbisdec, audioconverter); 
gst_element_link(audioconverter, audiosink); 
gst_element_set_state(spotifyaudiosrc, GST_STATE_PLAYING);

I'm getting the following error:

0:00:24.458653596 15953       0x670b60 INFO        GST_ELEMENT_PADS 
gstelement.c:1013:gst_element_get_static_pad: no such pad 'sink' in 
element "spotifyaudiosrc0"

The pad-added signal is never emitted.

The following works:

pipeline_ = gst_parse_launch("spotifyaudiosrc username= password= 
track=spotify:track:3i3P1mGpV9eRlfKccjDjwi ! oggdemux ! vorbisdec ! 
audioconvert ! alsasink device=hw:1,0", &gst_error);

Jonas