mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-12-26 08:56:49 -05:00
node: add support for multiple input and output ports
Make it possible to have a mixer/spliter and converter for the gstreamer sources and sinks. Add logic to make a new input/output port when the existing ports are not of the required format.
This commit is contained in:
Wim Taymans
parent
e7e141a31d
commit
ca4f3d84cd
12 changed files with 568 additions and 186 deletions
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@ -28,25 +28,38 @@
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#define PINOS_GST_SINK_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PINOS_TYPE_GST_SINK, PinosGstSinkPrivate))
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typedef struct {
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PinosGstSink *sink;
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PinosServerPort *port;
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GstElement *src;
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GstElement *convert;
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GstPad *srcpad;
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GstPad *peerpad;
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} SinkPortData;
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struct _PinosGstSinkPrivate
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{
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gchar *convert_name;
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GstElement *pipeline;
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GstElement *src;
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GstElement *depay;
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GstElement *mixer;
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GstElement *element;
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PinosPort *input;
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GList *ports;
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GstCaps *possible_formats;
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GstNetTimeProvider *provider;
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PinosProperties *props;
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};
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enum {
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PROP_0,
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PROP_ELEMENT,
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PROP_POSSIBLE_FORMATS
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PROP_POSSIBLE_FORMATS,
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PROP_MIXER,
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PROP_CONVERT_NAME
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};
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G_DEFINE_TYPE (PinosGstSink, pinos_gst_sink, PINOS_TYPE_SERVER_NODE);
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@ -119,19 +132,13 @@ setup_pipeline (PinosGstSink *sink, GError **error)
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g_debug ("gst-sink %p: setup pipeline", sink);
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priv->pipeline = gst_pipeline_new (NULL);
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priv->src = gst_element_factory_make ("pinosportsrc", NULL);
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g_object_set (priv->src, "port", priv->input,
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NULL);
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gst_bin_add (GST_BIN (priv->pipeline), priv->src);
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// priv->depay = gst_element_factory_make ("pinosdepay", NULL);
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// gst_bin_add (GST_BIN (priv->pipeline), priv->depay);
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// gst_element_link (priv->src, priv->depay);
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g_object_set (priv->element, "sync", FALSE, NULL);
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gst_bin_add (GST_BIN (priv->pipeline), priv->element);
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gst_element_link (priv->src, priv->element);
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if (priv->mixer) {
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gst_bin_add (GST_BIN (priv->pipeline), priv->mixer);
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gst_element_link (priv->mixer, priv->element);
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}
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bus = gst_pipeline_get_bus (GST_PIPELINE (priv->pipeline));
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gst_bus_add_watch (bus, bus_handler, sink);
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@ -257,6 +264,14 @@ get_property (GObject *object,
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g_value_set_boxed (value, priv->possible_formats);
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break;
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case PROP_MIXER:
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g_value_set_object (value, priv->mixer);
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break;
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case PROP_CONVERT_NAME:
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g_value_set_string (value, priv->convert_name);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -281,90 +296,173 @@ set_property (GObject *object,
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priv->possible_formats = g_value_dup_boxed (value);
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break;
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case PROP_MIXER:
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priv->mixer = g_value_dup_object (value);
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break;
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case PROP_CONVERT_NAME:
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priv->convert_name = g_value_dup_string (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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static gboolean
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on_linked (PinosPort *port, PinosPort *peer, gpointer user_data)
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{
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PinosNode *node = user_data;
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guint n_peers;
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SinkPortData *data = user_data;
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PinosGstSink *sink = data->sink;
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PinosGstSinkPrivate *priv = sink->priv;
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g_debug ("port %p: linked", port);
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pinos_port_get_links (port, &n_peers);
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if (n_peers == 1)
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pinos_node_report_busy (node);
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if (priv->mixer) {
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data->peerpad = gst_element_get_request_pad (priv->mixer, "sink_%u");
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} else {
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data->peerpad = gst_element_get_static_pad (priv->element, "sink");
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}
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if (gst_pad_link (data->srcpad, data->peerpad) != GST_PAD_LINK_OK) {
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g_clear_object (&data->peerpad);
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return FALSE;
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}
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pinos_node_report_busy (PINOS_NODE (sink));
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if (data->convert) {
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gst_element_set_state (data->convert, GST_STATE_PLAYING);
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}
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gst_element_set_state (data->src, GST_STATE_PLAYING);
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return TRUE;
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}
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static void
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on_unlinked (PinosPort *port, PinosPort *peer, gpointer user_data)
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{
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PinosNode *node = user_data;
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guint n_peers;
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SinkPortData *data = user_data;
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PinosGstSink *sink = data->sink;
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PinosGstSinkPrivate *priv = sink->priv;
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g_debug ("port %p: unlinked", port);
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pinos_port_get_links (port, &n_peers);
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if (n_peers == 0)
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pinos_node_report_idle (node);
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if (data->convert) {
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gst_element_set_state (data->convert, GST_STATE_NULL);
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}
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gst_element_set_state (data->src, GST_STATE_NULL);
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gst_pad_unlink (data->srcpad, data->peerpad);
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if (priv->mixer)
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gst_element_release_request_pad (priv->mixer, data->peerpad);
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g_clear_object (&data->peerpad);
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}
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static void
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on_input_port_created (GObject *source_object,
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GAsyncResult *res,
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gpointer user_data)
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free_sink_port_data (SinkPortData *data)
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{
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PinosNode *node = PINOS_NODE (source_object);
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PinosGstSink *sink = PINOS_GST_SINK (node);
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PinosGstSink *sink = data->sink;
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PinosGstSinkPrivate *priv = sink->priv;
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priv->input = pinos_node_create_port_finish (node, res, NULL);
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gst_element_set_state (data->src, GST_STATE_NULL);
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gst_bin_remove (GST_BIN (priv->pipeline), data->src);
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g_signal_connect (priv->input, "linked", (GCallback) on_linked, node);
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g_signal_connect (priv->input, "unlinked", (GCallback) on_unlinked, node);
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if (data->convert) {
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gst_element_set_state (data->convert, GST_STATE_NULL);
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gst_bin_remove (GST_BIN (priv->pipeline), data->convert);
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}
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if (data->peerpad)
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gst_element_release_request_pad (priv->mixer, data->peerpad);
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setup_pipeline (sink, NULL);
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g_clear_object (&data->srcpad);
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g_clear_object (&data->peerpad);
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g_slice_free (SinkPortData, data);
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}
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static PinosServerPort *
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create_port_sync (PinosServerNode *node,
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PinosDirection direction,
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const gchar *name,
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GBytes *possible_formats,
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PinosProperties *props)
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{
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PinosGstSink *sink = PINOS_GST_SINK (node);
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PinosGstSinkPrivate *priv = sink->priv;
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SinkPortData *data;
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data = g_slice_new0 (SinkPortData);
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data->sink = sink;
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data->port = PINOS_SERVER_NODE_CLASS (pinos_gst_sink_parent_class)
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->create_port_sync (node,
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direction,
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name,
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possible_formats,
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props);
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g_debug ("connecting signals");
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g_signal_connect (data->port, "linked", (GCallback) on_linked, data);
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g_signal_connect (data->port, "unlinked", (GCallback) on_unlinked, data);
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data->src = gst_element_factory_make ("pinosportsrc", NULL);
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g_object_set (data->src, "port", data->port, NULL);
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gst_bin_add (GST_BIN (priv->pipeline), data->src);
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if (priv->convert_name) {
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data->convert = gst_element_factory_make (priv->convert_name, NULL);
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gst_bin_add (GST_BIN (priv->pipeline), data->convert);
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gst_element_link (data->src, data->convert);
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data->srcpad = gst_element_get_static_pad (data->convert, "src");
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} else {
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data->srcpad = gst_element_get_static_pad (data->src, "src");
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}
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priv->ports = g_list_append (priv->ports, data);
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return data->port;
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}
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static void
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remove_port (PinosNode *node,
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PinosPort *port)
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{
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PinosGstSink *sink = PINOS_GST_SINK (node);
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PinosGstSinkPrivate *priv = sink->priv;
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GList *walk;
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for (walk = priv->ports; walk; walk = g_list_next (walk)) {
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SinkPortData *data = walk->data;
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if (data->port == PINOS_SERVER_PORT_CAST (port)) {
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free_sink_port_data (data);
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priv->ports = g_list_delete_link (priv->ports, walk);
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break;
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}
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}
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if (priv->ports == NULL)
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pinos_node_report_idle (node);
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}
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static void
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sink_constructed (GObject * object)
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{
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PinosServerNode *node = PINOS_SERVER_NODE (object);
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PinosGstSink *sink = PINOS_GST_SINK (object);
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PinosGstSinkPrivate *priv = sink->priv;
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gchar *str;
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GBytes *possible_formats;
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G_OBJECT_CLASS (pinos_gst_sink_parent_class)->constructed (object);
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str = gst_caps_to_string (priv->possible_formats);
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possible_formats = g_bytes_new_take (str, strlen (str) + 1);
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pinos_node_create_port (PINOS_NODE (node),
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PINOS_DIRECTION_INPUT,
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"input",
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possible_formats,
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NULL,
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NULL,
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on_input_port_created,
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node);
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g_bytes_unref (possible_formats);
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setup_pipeline (sink, NULL);
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}
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static void
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sink_finalize (GObject * object)
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{
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PinosServerNode *node = PINOS_SERVER_NODE (object);
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PinosGstSink *sink = PINOS_GST_SINK (object);
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PinosGstSinkPrivate *priv = sink->priv;
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pinos_node_remove_port (PINOS_NODE (node), priv->input);
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destroy_pipeline (sink);
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g_clear_pointer (&priv->possible_formats, gst_caps_unref);
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pinos_properties_free (priv->props);
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G_OBJECT_CLASS (pinos_gst_sink_parent_class)->finalize (object);
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}
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@ -374,6 +472,7 @@ pinos_gst_sink_class_init (PinosGstSinkClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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PinosNodeClass *node_class = PINOS_NODE_CLASS (klass);
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PinosServerNodeClass *server_node_class = PINOS_SERVER_NODE_CLASS (klass);
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g_type_class_add_private (klass, sizeof (PinosGstSinkPrivate));
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@ -400,17 +499,34 @@ pinos_gst_sink_class_init (PinosGstSinkClass * klass)
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_MIXER,
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g_param_spec_object ("mixer",
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"Mixer",
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"The mixer element",
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GST_TYPE_ELEMENT,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS));
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g_object_class_install_property (gobject_class,
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PROP_CONVERT_NAME,
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g_param_spec_string ("convert-name",
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"Convert name",
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"The converter element name",
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NULL,
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G_PARAM_READWRITE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS));
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node_class->set_state = set_state;
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node_class->remove_port = remove_port;
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server_node_class->create_port_sync = create_port_sync;
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}
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static void
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pinos_gst_sink_init (PinosGstSink * sink)
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{
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PinosGstSinkPrivate *priv;
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priv = sink->priv = PINOS_GST_SINK_GET_PRIVATE (sink);
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priv->props = pinos_properties_new (NULL, NULL);
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sink->priv = PINOS_GST_SINK_GET_PRIVATE (sink);
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}
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PinosServerNode *
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@ -418,7 +534,9 @@ pinos_gst_sink_new (PinosDaemon *daemon,
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const gchar *name,
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PinosProperties *properties,
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GstElement *element,
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GstCaps *caps)
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GstCaps *caps,
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GstElement *mixer,
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const gchar *convert_name)
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{
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PinosServerNode *node;
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@ -428,6 +546,8 @@ pinos_gst_sink_new (PinosDaemon *daemon,
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"properties", properties,
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"element", element,
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"possible-formats", caps,
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"mixer", mixer,
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"convert-name", convert_name,
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NULL);
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return node;
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