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rtpbin: handle multiple encoder instances
Keep track of elements that are added to multiple sessions and make sure we only add them to the rtpbin once and that we clean them when no session refers to them anymore.
This commit is contained in:
Wim Taymans
parent
76e4cbc753
commit
3f3b2d0886
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@ -227,6 +227,9 @@ struct _GstRtpBinPrivate
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/* UNIX (ntp) time of last SR sync used */
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guint64 last_unix;
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/* list of extra elements */
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GList *elements;
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};
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/* signals and args */
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@ -666,10 +669,49 @@ no_demux:
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}
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}
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static gboolean
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bin_manage_element (GstRtpBin * bin, GstElement * element)
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{
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GstRtpBinPrivate *priv = bin->priv;
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if (g_list_find (priv->elements, element)) {
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GST_DEBUG_OBJECT (bin, "requested element %p already in bin", element);
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} else {
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GST_DEBUG_OBJECT (bin, "adding requested element %p", element);
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if (!gst_bin_add (GST_BIN_CAST (bin), element))
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goto add_failed;
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if (!gst_element_sync_state_with_parent (element))
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GST_WARNING_OBJECT (bin, "unable to sync element state with rtpbin");
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}
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/* we add the element multiple times, each we need an equal number of
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* removes to really remove the element from the bin */
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priv->elements = g_list_prepend (priv->elements, element);
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return TRUE;
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/* ERRORS */
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add_failed:
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{
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GST_WARNING_OBJECT (bin, "unable to add element");
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return FALSE;
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}
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}
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static void
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remove_bin_element (GstElement * element, GstRtpBin * bin)
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{
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gst_bin_remove (GST_BIN_CAST (bin), element);
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GstRtpBinPrivate *priv = bin->priv;
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GList *find;
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find = g_list_find (priv->elements, element);
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if (find) {
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priv->elements = g_list_delete_link (priv->elements, find);
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if (!g_list_find (priv->elements, element))
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gst_bin_remove (GST_BIN_CAST (bin), element);
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else
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gst_object_unref (element);
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}
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}
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/* called with RTP_BIN_LOCK */
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@ -2532,31 +2574,21 @@ static GstElement *
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session_request_encoder (GstRtpBinSession * session, guint signal)
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{
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GstElement *encoder = NULL;
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GstRtpBin *bin = session->bin;
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g_signal_emit (session->bin, gst_rtp_bin_signals[signal], 0, session->id,
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&encoder);
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g_signal_emit (bin, gst_rtp_bin_signals[signal], 0, session->id, &encoder);
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if (encoder) {
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if (g_slist_find (session->encoders, encoder)) {
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GST_DEBUG_OBJECT (session->bin, "requested encoder %p already in bin",
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encoder);
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} else {
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GST_DEBUG_OBJECT (session->bin, "adding requested encoder %p", encoder);
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if (!gst_bin_add (GST_BIN_CAST (session->bin), encoder))
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goto add_failed;
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if (!gst_element_sync_state_with_parent (encoder))
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GST_WARNING_OBJECT (session->bin,
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"unable to sync encoder state with rtpbin");
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session->encoders = g_slist_append (session->encoders, encoder);
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}
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if (!bin_manage_element (bin, encoder))
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goto manage_failed;
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session->encoders = g_slist_prepend (session->encoders, encoder);
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}
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return encoder;
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/* ERRORS */
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add_failed:
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manage_failed:
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{
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GST_WARNING_OBJECT (session->bin, "unable to add encoder");
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GST_WARNING_OBJECT (bin, "unable to manage encoder");
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gst_object_unref (encoder);
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return NULL;
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}
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@ -2566,31 +2598,21 @@ static GstElement *
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session_request_decoder (GstRtpBinSession * session, guint signal)
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{
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GstElement *decoder = NULL;
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GstRtpBin *bin = session->bin;
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g_signal_emit (session->bin, gst_rtp_bin_signals[signal], 0, session->id,
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&decoder);
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g_signal_emit (bin, gst_rtp_bin_signals[signal], 0, session->id, &decoder);
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if (decoder) {
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if (g_slist_find (session->decoders, decoder)) {
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GST_DEBUG_OBJECT (session->bin, "requested decoder %p already in bin",
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decoder);
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} else {
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GST_DEBUG_OBJECT (session->bin, "adding requested decoder %p", decoder);
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if (!gst_bin_add (GST_BIN_CAST (session->bin), decoder))
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goto add_failed;
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if (!gst_element_sync_state_with_parent (decoder))
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GST_WARNING_OBJECT (session->bin,
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"unable to sync decoder state with rtpbin");
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session->decoders = g_slist_append (session->decoders, decoder);
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}
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if (!bin_manage_element (bin, decoder))
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goto manage_failed;
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session->decoders = g_slist_prepend (session->decoders, decoder);
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}
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return decoder;
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/* ERRORS */
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add_failed:
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manage_failed:
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{
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GST_WARNING_OBJECT (session->bin, "unable to add decoder");
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GST_WARNING_OBJECT (bin, "unable to manage decoder");
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gst_object_unref (decoder);
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return NULL;
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}
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@ -431,43 +431,78 @@ GST_START_TEST (test_request_pad_by_template_name)
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GST_END_TEST;
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static GstElement *
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encoder_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
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encoder_cb (GstElement * rtpbin, guint sessid, GstElement * bin)
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{
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GstElement *bin;
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GstPad *srcpad, *sinkpad;
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fail_unless (sessid == 2);
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bin = gst_bin_new ("rtpenc");
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GST_DEBUG ("making encoder");
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sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_2", GST_PAD_SINK);
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srcpad = gst_ghost_pad_new_no_target ("rtp_src_2", GST_PAD_SRC);
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gst_element_add_pad (bin, sinkpad);
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gst_element_add_pad (bin, srcpad);
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return bin;
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return gst_object_ref (bin);
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}
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static GstElement *
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encoder_cb2 (GstElement * rtpbin, guint sessid, GstElement * bin)
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{
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GstPad *srcpad, *sinkpad;
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fail_unless (sessid == 3);
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GST_DEBUG ("making encoder");
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sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_3", GST_PAD_SINK);
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srcpad = gst_ghost_pad_new_no_target ("rtp_src_3", GST_PAD_SRC);
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gst_element_add_pad (bin, sinkpad);
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gst_element_add_pad (bin, srcpad);
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return gst_object_ref (bin);
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}
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GST_START_TEST (test_encoder)
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{
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GstElement *rtpbin;
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GstPad *rtp_sink1;
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GstElement *rtpbin, *bin;
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GstPad *rtp_sink1, *rtp_sink2;
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gulong id;
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bin = gst_bin_new ("rtpenc");
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rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");
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g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb,
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NULL);
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id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb,
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bin);
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rtp_sink1 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_2");
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fail_unless (rtp_sink1 != NULL);
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fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "send_rtp_sink_2");
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ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);
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g_signal_handler_disconnect (rtpbin, id);
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id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb2,
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bin);
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rtp_sink2 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_3");
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fail_unless (rtp_sink2 != NULL);
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/* remove the session */
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gst_element_release_request_pad (rtpbin, rtp_sink1);
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gst_object_unref (rtp_sink1);
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gst_element_release_request_pad (rtpbin, rtp_sink2);
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gst_object_unref (rtp_sink2);
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/* nothing left anymore now */
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fail_unless (rtpbin->numsinkpads == 0);
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fail_unless (rtpbin->numsrcpads == 0);
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gst_object_unref (rtpbin);
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gst_object_unref (bin);
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}
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GST_END_TEST;
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