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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-31 22:25:38 -04:00
Work on adding pulsevideosink
Add the beginnings of a pulsevideosink Make a new client-source object for every client that wants to provide a stream. The client will have a handle to write the stream to.
This commit is contained in:
Wim Taymans
parent
7bb3ae2562
commit
ca7e4602f6
13 changed files with 1232 additions and 23 deletions
297
src/server/pv-client-source.c
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297
src/server/pv-client-source.c
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/* Pulsevideo
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* Copyright (C) 2015 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <gst/gst.h>
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#include <gio/gio.h>
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#include "server/pv-daemon.h"
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#include "pv-client-source.h"
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#define PV_CLIENT_SOURCE_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), PV_TYPE_CLIENT_SOURCE, PvClientSourcePrivate))
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struct _PvClientSourcePrivate
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{
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GstElement *pipeline;
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GstElement *src;
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GstElement *filter;
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GstElement *sink;
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GSocket *socket;
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PvSourceOutput *input;
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};
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G_DEFINE_TYPE (PvClientSource, pv_client_source, PV_TYPE_SOURCE);
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static gboolean
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bus_handler (GstBus * bus, GstMessage * message, gpointer user_data)
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{
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PvSource *source = user_data;
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PvClientSourcePrivate *priv = PV_CLIENT_SOURCE (source)->priv;
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switch (GST_MESSAGE_TYPE (message)) {
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case GST_MESSAGE_ERROR:
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{
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GError *error;
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gchar *debug;
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gst_message_parse_error (message, &error, &debug);
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g_print ("got error %s (%s)\n", error->message, debug);
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g_free (debug);
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pv_source_report_error (source, error);
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gst_element_set_state (priv->pipeline, GST_STATE_NULL);
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break;
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}
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default:
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break;
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}
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return TRUE;
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}
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static void
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setup_pipeline (PvClientSource *source)
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{
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PvClientSourcePrivate *priv = source->priv;
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GstBus *bus;
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priv->pipeline = gst_parse_launch ("socketsrc name=src ! "
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"capsfilter name=filter ! "
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"multisocketsink "
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"buffers-max=2 "
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"buffers-soft-max=1 "
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"recover-policy=latest "
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"sync-method=latest "
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"name=sink "
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"sync=true "
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"enable-last-sample=false",
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NULL);
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priv->filter = gst_bin_get_by_name (GST_BIN (priv->pipeline), "filter");
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priv->sink = gst_bin_get_by_name (GST_BIN (priv->pipeline), "sink");
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priv->src = gst_bin_get_by_name (GST_BIN (priv->pipeline), "src");
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bus = gst_pipeline_get_bus (GST_PIPELINE (priv->pipeline));
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gst_bus_add_watch (bus, bus_handler, source);
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gst_object_unref (bus);
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}
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static void
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collect_capabilities (PvSource * source)
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{
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PvClientSourcePrivate *priv = PV_CLIENT_SOURCE (source)->priv;
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GstCaps *res;
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GstQuery *query;
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query = gst_query_new_caps (NULL);
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gst_element_query (priv->src, query);
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gst_query_parse_caps_result (query, &res);
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g_print ("%s\n", gst_caps_to_string (res));
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gst_query_unref (query);
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}
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static gboolean
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client_set_state (PvSource *source, PvSourceState state)
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{
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PvClientSourcePrivate *priv = PV_CLIENT_SOURCE (source)->priv;
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switch (state) {
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case PV_SOURCE_STATE_SUSPENDED:
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gst_element_set_state (priv->pipeline, GST_STATE_NULL);
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break;
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case PV_SOURCE_STATE_INIT:
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gst_element_set_state (priv->pipeline, GST_STATE_READY);
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collect_capabilities (source);
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break;
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case PV_SOURCE_STATE_IDLE:
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gst_element_set_state (priv->pipeline, GST_STATE_PAUSED);
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break;
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case PV_SOURCE_STATE_RUNNING:
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gst_element_set_state (priv->pipeline, GST_STATE_PLAYING);
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break;
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case PV_SOURCE_STATE_ERROR:
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break;
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}
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pv_source_update_state (source, state);
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return TRUE;
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}
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static GVariant *
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client_get_capabilities (PvSource *source, GVariant *props)
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{
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return NULL;
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}
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static void
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on_socket_notify (GObject *gobject,
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GParamSpec *pspec,
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gpointer user_data)
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{
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PvClientSource *source = user_data;
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PvClientSourcePrivate *priv = source->priv;
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GSocket *socket;
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guint num_handles;
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g_object_get (gobject, "socket", &socket, NULL);
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g_print ("source socket %p\n", socket);
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if (socket == NULL) {
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if (priv->socket)
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g_signal_emit_by_name (priv->sink, "remove", priv->socket);
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} else {
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g_signal_emit_by_name (priv->sink, "add", socket);
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}
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priv->socket = socket;
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g_object_get (priv->sink, "num-handles", &num_handles, NULL);
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if (num_handles == 0) {
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gst_element_set_state (priv->pipeline, GST_STATE_READY);
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} else {
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gst_element_set_state (priv->pipeline, GST_STATE_PLAYING);
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}
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}
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static PvSourceOutput *
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client_create_source_output (PvSource *source, GVariant *props, const gchar *prefix)
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{
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PvClientSourcePrivate *priv = PV_CLIENT_SOURCE (source)->priv;
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PvSourceOutput *output;
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GVariantDict dict;
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GstCaps *caps;
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const gchar *str;
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gint32 i32;
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g_variant_dict_init (&dict, props);
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if (!g_variant_dict_lookup (&dict, "format.encoding", "&s", &str))
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goto invalid_encoding;
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caps = gst_caps_new_empty_simple (str);
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if (g_variant_dict_lookup (&dict, "format.format", "&s", &str))
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gst_caps_set_simple (caps, "format", G_TYPE_STRING, str, NULL);
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if (g_variant_dict_lookup (&dict, "format.width", "i", &i32))
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gst_caps_set_simple (caps, "width", G_TYPE_INT, (gint) i32, NULL);
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if (g_variant_dict_lookup (&dict, "format.height", "i", &i32))
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gst_caps_set_simple (caps, "height", G_TYPE_INT, (gint) i32, NULL);
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if (g_variant_dict_lookup (&dict, "format.views", "i", &i32))
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gst_caps_set_simple (caps, "views", G_TYPE_INT, (gint) i32, NULL);
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if (g_variant_dict_lookup (&dict, "format.chroma-site", "&s", &str))
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gst_caps_set_simple (caps, "chroma-site", G_TYPE_STRING, str, NULL);
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if (g_variant_dict_lookup (&dict, "format.colorimetry", "&s", &str))
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gst_caps_set_simple (caps, "colorimetry", G_TYPE_STRING, str, NULL);
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if (g_variant_dict_lookup (&dict, "format.interlace-mode", "&s", &str))
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gst_caps_set_simple (caps, "interlace-mode", G_TYPE_STRING, str, NULL);
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g_print ("caps %s\n", gst_caps_to_string (caps));
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g_object_set (priv->filter, "caps", caps, NULL);
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gst_caps_unref (caps);
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output = PV_SOURCE_CLASS (pv_client_source_parent_class)->create_source_output (source, props, prefix);
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gst_element_set_state (priv->pipeline, GST_STATE_READY);
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g_signal_connect (output, "notify::socket", (GCallback) on_socket_notify, source);
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return output;
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/* ERRORS */
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invalid_encoding:
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{
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g_variant_dict_clear (&dict);
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return NULL;
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}
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}
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static gboolean
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client_release_source_output (PvSource *source, PvSourceOutput *output)
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{
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return PV_SOURCE_CLASS (pv_client_source_parent_class)->release_source_output (source, output);
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}
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static void
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client_source_finalize (GObject * object)
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{
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G_OBJECT_CLASS (pv_client_source_parent_class)->finalize (object);
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}
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static void
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on_input_socket_notify (GObject *gobject,
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GParamSpec *pspec,
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gpointer user_data)
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{
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PvClientSource *source = user_data;
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PvClientSourcePrivate *priv = source->priv;
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GSocket *socket;
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g_object_get (gobject, "socket", &socket, NULL);
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g_print ("input socket %p\n", socket);
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g_object_set (priv->src, "socket", socket, NULL);
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}
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PvSourceOutput *
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pv_client_source_get_source_input (PvClientSource *source, GVariant *props, const gchar *prefix)
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{
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PvClientSourcePrivate *priv;
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g_return_val_if_fail (PV_IS_CLIENT_SOURCE (source), NULL);
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priv = source->priv;
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if (priv->input == NULL) {
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priv->input = PV_SOURCE_CLASS (pv_client_source_parent_class)->create_source_output (PV_SOURCE (source), props, prefix);
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g_signal_connect (priv->input, "notify::socket", (GCallback) on_input_socket_notify, source);
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}
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return priv->input;
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}
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static void
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pv_client_source_class_init (PvClientSourceClass * klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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PvSourceClass *source_class = PV_SOURCE_CLASS (klass);
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g_type_class_add_private (klass, sizeof (PvClientSourcePrivate));
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gobject_class->finalize = client_source_finalize;
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source_class->get_capabilities = client_get_capabilities;
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source_class->set_state = client_set_state;
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source_class->create_source_output = client_create_source_output;
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source_class->release_source_output = client_release_source_output;
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}
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static void
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pv_client_source_init (PvClientSource * source)
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{
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source->priv = PV_CLIENT_SOURCE_GET_PRIVATE (source);
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setup_pipeline (source);
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}
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PvSource *
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pv_client_source_new (PvDaemon *daemon)
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{
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return g_object_new (PV_TYPE_CLIENT_SOURCE, "daemon", daemon, "name", "client-source", NULL);
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}
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