static GstStateChangeReturn
gst_trm_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstTRM *trm;
trm = GST_TRM (element);
switch (transition) {
case GST_STATE_CHANGE_READY_TO_PAUSED:
trm->trm = trm_New ();
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret != GST_STATE_CHANGE_SUCCESS)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
trm_Delete (trm->trm);
trm->trm = NULL;
trm->data_available = FALSE;
trm->signature_available = FALSE;
break;
default:
break;
}
return ret;
}
static void
gst_trm_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstTRM *trm;
trm = GST_TRM (object);
GST_OBJECT_LOCK (trm);
switch (prop_id) {
case ARG_PROXY_ADDRESS:{
g_value_set_string (value, trm->proxy_address);
break;
}
case ARG_PROXY_PORT:{
g_value_set_uint (value, trm->proxy_port);
break;
}
default:{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
GST_OBJECT_UNLOCK (trm);
}
static GstFlowReturn
gst_trm_chain (GstPad * pad, GstBuffer * buf)
{
GstTRM *trm = GST_TRM (GST_PAD_PARENT (pad));
if (!trm->data_available) {
GstFormat tformat = GST_FORMAT_TIME;
gint64 total_duration;
/* FIXME: maybe we should only query this once we have as much data as
* we need (30secs or so), to get a better estimation of the length in
* the case of VBR files? */
if (gst_pad_query_peer_duration (pad, &tformat, &total_duration)) {
total_duration /= GST_SECOND;
trm_SetSongLength (trm->trm, total_duration);
trm->data_available = TRUE;
}
}
if (!trm->signature_available
&& trm_GenerateSignature (trm->trm, (char *) GST_BUFFER_DATA (buf),
GST_BUFFER_SIZE (buf))) {
GST_DEBUG ("Signature");
GST_OBJECT_LOCK (trm);
if (trm->proxy_address != NULL) {
if (!trm_SetProxy (trm->trm, trm->proxy_address, trm->proxy_port)) {
GST_OBJECT_UNLOCK (trm);
goto proxy_setup_error;
}
}
GST_OBJECT_UNLOCK (trm);
gst_trm_emit_signature (trm);
}
return gst_pad_push (trm->srcpad, buf);
/* ERRORS */
proxy_setup_error:
{
GST_ELEMENT_ERROR (trm, RESOURCE, SETTINGS, (NULL),
("Unable to set proxy server for trm lookup"));
return GST_FLOW_ERROR;
}
}
static gboolean
gst_trm_setcaps (GstPad * pad, GstCaps * caps)
{
GstTRM *trm;
GstStructure *structure;
const gchar *mimetype;
gint width;
trm = GST_TRM (gst_pad_get_parent (pad));
if (!gst_pad_set_caps (trm->srcpad, caps))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
mimetype = gst_structure_get_name (structure);
if (!gst_structure_get_int (structure, "depth", &trm->depth) ||
!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "channels", &trm->channels) ||
!gst_structure_get_int (structure, "rate", &trm->rate)) {
GST_DEBUG_OBJECT (trm, "failed to extract depth, width, channels or rate");
goto failure;
}
if (trm->depth != width) {
GST_DEBUG_OBJECT (trm, "depth != width (%d != %d)", trm->depth, width);
goto failure;
}
trm_SetPCMDataInfo (trm->trm, trm->rate, trm->channels, trm->depth);
gst_object_unref (trm);
return TRUE;
/* ERRORS */
failure:
{
GST_WARNING_OBJECT (trm, "FAILED with caps %" GST_PTR_FORMAT, caps);
gst_object_unref (trm);
return FALSE;
}
}