static gboolean webkitMediaCommonEncryptionDecryptSinkEventHandler(GstBaseTransform* trans, GstEvent* event)
{
WebKitMediaCommonEncryptionDecrypt* self = WEBKIT_MEDIA_CENC_DECRYPT(trans);
WebKitMediaCommonEncryptionDecryptPrivate* priv = WEBKIT_MEDIA_CENC_DECRYPT_GET_PRIVATE(self);
WebKitMediaCommonEncryptionDecryptClass* klass = WEBKIT_MEDIA_CENC_DECRYPT_GET_CLASS(self);
gboolean result = FALSE;
switch (GST_EVENT_TYPE(event)) {
case GST_EVENT_PROTECTION: {
const char* systemId;
const char* origin;
GstBuffer* initDataBuffer;
GST_DEBUG_OBJECT(self, "received protection event");
gst_event_parse_protection(event, &systemId, &initDataBuffer, &origin);
GST_DEBUG_OBJECT(self, "systemId: %s", systemId);
if (!g_str_equal(systemId, klass->protectionSystemId)) {
gst_event_unref(event);
result = TRUE;
break;
}
// Keep the event ref around so that the parsed event data
// remains valid until the drm-key-need message has been sent.
priv->protectionEvent = event;
RunLoop::main().dispatch([self, initDataBuffer] {
if (self) {
WebKitMediaCommonEncryptionDecryptClass* klass = WEBKIT_MEDIA_CENC_DECRYPT_GET_CLASS(self);
klass->requestDecryptionKey(self, initDataBuffer);
if (self->priv->protectionEvent) {
gst_event_unref(self->priv->protectionEvent);
self->priv->protectionEvent = nullptr;
}
}});
result = TRUE;
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB: {
if (klass->handleKeyResponse(self, event)) {
GST_DEBUG_OBJECT(self, "key received");
priv->keyReceived = true;
priv->condition.notifyOne();
}
gst_event_unref(event);
result = TRUE;
break;
}
default:
result = GST_BASE_TRANSFORM_CLASS(parent_class)->sink_event(trans, event);
break;
}
return result;
}
static gboolean webkitMediaPlayReadyDecryptSinkEventHandler(GstBaseTransform* trans, GstEvent* event)
{
gboolean result = FALSE;
WebKitMediaPlayReadyDecrypt* self = WEBKIT_MEDIA_PLAYREADY_DECRYPT(trans);
switch (GST_EVENT_TYPE(event)) {
case GST_EVENT_PROTECTION: {
const gchar* systemId;
const gchar* origin;
GstBuffer* initdatabuffer;
GST_INFO_OBJECT(self, "received protection event");
gst_event_parse_protection(event, &systemId, &initdatabuffer, &origin);
GST_DEBUG_OBJECT(self, "systemId: %s", systemId);
// Ignore protection events about content we cannot handle.
if (!g_str_equal(systemId, PLAYREADY_PROTECTION_SYSTEM_ID)) {
gst_event_unref(event);
result = TRUE;
break;
}
// Keep the event ref around so that the parsed event data
// remains valid until the drm-key-need message has been sent.
self->protectionEvent = event;
self->initDataBuffer = initdatabuffer;
g_timeout_add(0, requestKey, self);
result = TRUE;
break;
}
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB: {
GST_INFO_OBJECT(self, "received OOB event");
g_mutex_lock(&self->mutex);
const GstStructure* structure = gst_event_get_structure(event);
if (gst_structure_has_name(structure, "dxdrm-session")) {
GST_INFO_OBJECT(self, "received dxdrm session");
const GValue* value = gst_structure_get_value(structure, "session");
self->sessionMetaData = reinterpret_cast<WebCore::DiscretixSession*>(g_value_get_pointer(value));
self->streamReceived = TRUE;
g_cond_signal(&self->condition);
}
g_mutex_unlock(&self->mutex);
gst_event_unref(event);
result = TRUE;
break;
}
default:
result = GST_BASE_TRANSFORM_CLASS(parent_class)->sink_event(trans, event);
break;
}
return result;
}
static gboolean
gst_cenc_decrypt_sink_event_handler (GstBaseTransform * trans, GstEvent * event)
{
gboolean ret = TRUE;
const gchar *system_id;
GstBuffer *pssi = NULL;
const gchar *loc;
GstCencDecrypt *self = GST_CENC_DECRYPT (trans);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_PROTECTION:
GST_DEBUG_OBJECT (self, "received protection event");
gst_event_parse_protection (event, &system_id, &pssi, &loc);
GST_DEBUG_OBJECT (self, "system_id: %s loc: %s", system_id, loc);
if(g_ascii_strcasecmp(loc, "dash/mpd")==0 && g_ascii_strcasecmp(system_id, M_MPD_PROTECTION_ID)==0){
GST_DEBUG_OBJECT (self, "event carries MPD pssi data");
self->drm_type = GST_DRM_MARLIN;
gst_cenc_decrypt_parse_content_protection_element (self, pssi);
}
else if(g_ascii_strcasecmp(loc, "dash/mpd")==0 && g_ascii_strcasecmp(system_id, M_MPD_PROTECTION_ID)==0){
GST_DEBUG_OBJECT (self, "event carries MPD clearkey data");
self->drm_type = GST_DRM_CLEARKEY;
/* TODO: parse clearkey:Laurl element */
}
else if(g_str_has_prefix (loc, "isobmff/") && g_ascii_strcasecmp(system_id, M_PSSH_PROTECTION_ID)==0){
GST_DEBUG_OBJECT (self, "event carries pssh data from qtdemux");
self->drm_type = GST_DRM_MARLIN;
gst_cenc_decrypt_parse_pssh_box (self, pssi);
}
gst_event_unref (event);
break;
default:
ret = GST_BASE_TRANSFORM_CLASS (parent_class)->sink_event (trans, event);
break;
}
return ret;
}
