When trying to play an ogg using gst-launch-ext and alsasink I get this:
alsasink0.sink: caps = (GstCaps *) { audio/raw; format=(string) 'int';
width=(int) 16; depth=(int) 16; endianness=(int) 1234; law=(int) 0;
signed=(boolean) TRUE; rate=(int) 44100; channels=(int) 2 }
/pipeline0/vorbisfile0.src: caps = (GstCaps *) { audio/raw; format=(string)
'int'; width=(int) 16; depth=(int) 16; endianness=(int) 1234; law=(int) 0;
signed=(boolean) TRUE; rate=(int) 44100; channels=(int) 2 }
 
** (process:23944): WARNING **: could not make initial pull of 8192 bytes
on pad alsasink0:sink
/pipeline0/alsasink0.sink: active = FALSE
 
** (process:23944): WARNING **: alsa: something happened while processing audio