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authorManuel Bachmann <manuel.bachmann@iot.bzh>2016-01-11 10:20:21 +0100
committerManuel Bachmann <manuel.bachmann@iot.bzh>2016-01-11 10:20:21 +0100
commita5a5383bba11e69379e27919f101c5e7718f8bf2 (patch)
tree0389edd5ac3053c285c3f8444297bca62c99f649 /plugins/media/media-rygel.c
parent937dce0512ae998a2416e44601ccb519a7166cdb (diff)
Add Media Plugin
Add a Media Plugin, based off Rygel (UPnP), with only an initialization and a "list" function for now. Signed-off-by: Manuel Bachmann <manuel.bachmann@iot.bzh>
Diffstat (limited to 'plugins/media/media-rygel.c')
-rw-r--r--plugins/media/media-rygel.c175
1 files changed, 175 insertions, 0 deletions
diff --git a/plugins/media/media-rygel.c b/plugins/media/media-rygel.c
new file mode 100644
index 00000000..51d718ba
--- /dev/null
+++ b/plugins/media/media-rygel.c
@@ -0,0 +1,175 @@
+/*
+ * Copyright (C) 2016 "IoT.bzh"
+ * Author "Manuel Bachmann"
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "media-api.h"
+
+/* -------------- MEDIA RYGEL IMPLEMENTATION ---------------- */
+
+/* --- PUBLIC FUNCTIONS --- */
+
+PUBLIC unsigned char _rygel_init (mediaCtxHandleT *ctx) {
+
+ GMainContext *loop;
+ GUPnPContext *context;
+ GUPnPControlPoint *control_point;
+ struct timeval tv_start, tv_now;
+
+ context = gupnp_context_new (NULL, NULL, 0, NULL);
+
+ control_point = gupnp_control_point_new (context, URN_MEDIA_SERVER);
+
+ g_signal_connect (control_point, "device-proxy-available",
+ G_CALLBACK (_rygel_device_cb), ctx);
+
+ /* start searching for servers */
+ gssdp_resource_browser_set_active (GSSDP_RESOURCE_BROWSER (control_point), TRUE);
+
+ loop = g_main_context_default ();
+
+ /* 5 seconds should be sufficient to find Rygel */
+ gettimeofday (&tv_start, NULL);
+ gettimeofday (&tv_now, NULL);
+ while (tv_now.tv_sec - tv_start.tv_sec <= 5) {
+
+ g_main_context_iteration (loop, FALSE);
+
+ if (ctx->media_server)
+ break;
+ }
+ /* fail if we found no server */
+ if (!ctx->media_server)
+ return -1;
+
+ dev_ctx[client_count]->loop = loop;
+ dev_ctx[client_count]->context = context;
+
+ client_count++;
+
+ return 0;
+}
+
+PUBLIC void _rygel_free (mediaCtxHandleT *ctx) {
+
+ dev_ctx_T *dev_ctx_c = (dev_ctx_T*)ctx->media_server;
+
+ client_count--;
+
+ g_main_context_unref (dev_ctx_c->loop);
+ dev_ctx_c->loop = NULL;
+ dev_ctx_c->context = NULL;
+ dev_ctx_c->device_info = NULL;
+ dev_ctx_c->content_dir = NULL;
+}
+
+PUBLIC char* _rygel_list (mediaCtxHandleT *ctx) {
+
+ dev_ctx_T *dev_ctx_c = (dev_ctx_T*)ctx->media_server;
+ GUPnPServiceProxy *content_dir_proxy;
+
+ dev_ctx_c->content_res = NULL;
+ content_dir_proxy = GUPNP_SERVICE_PROXY (dev_ctx_c->content_dir);
+
+ gupnp_service_proxy_begin_action (content_dir_proxy, "Browse", _rygel_content_cb, dev_ctx_c,
+ "ObjectID", G_TYPE_STRING, "Filesystem",
+ "BrowseFlag", G_TYPE_STRING, "BrowseDirectChildren",
+ "Filter", G_TYPE_STRING, "@childCount",
+ "StartingIndex", G_TYPE_UINT, 0,
+ "RequestedCount", G_TYPE_UINT, 64,
+ "SortCriteria", G_TYPE_STRING, "",
+ NULL);
+
+ while (!dev_ctx_c->content_res)
+ g_main_context_iteration (dev_ctx_c->loop, FALSE);
+
+ return dev_ctx_c->content_res;
+}
+
+ /* ---- LOCAL CALLBACK FUNCTIONS ---- */
+
+STATIC void _rygel_device_cb (GUPnPControlPoint *point, GUPnPDeviceProxy *proxy,
+ gpointer data) {
+
+ mediaCtxHandleT *ctx = (mediaCtxHandleT*)data;
+ GUPnPDeviceInfo *device_info;
+ GUPnPServiceInfo *content_dir;
+ const char *device_name;
+
+ device_info = GUPNP_DEVICE_INFO (proxy);
+ device_name = gupnp_device_info_get_model_name (device_info);
+ content_dir = gupnp_device_info_get_service (device_info, URN_CONTENT_DIR);
+
+ if (strcmp (device_name, "Rygel") != 0)
+ return;
+ if (!content_dir)
+ return;
+
+ /* allocate the global array if it has not been not done */
+ if (!dev_ctx)
+ dev_ctx = (dev_ctx_T**) malloc (sizeof(dev_ctx_T));
+ else
+ dev_ctx = (dev_ctx_T**) realloc (dev_ctx, (client_count+1)*sizeof(dev_ctx_T));
+
+ /* create an element for the client in the global array */
+ dev_ctx[client_count] = malloc (sizeof(dev_ctx_T));
+ dev_ctx[client_count]->device_info = device_info;
+ dev_ctx[client_count]->content_dir = content_dir;
+
+ /* make the client context aware of it */
+ ctx->media_server = (void*)dev_ctx[client_count];
+}
+
+STATIC void _rygel_content_cb (GUPnPServiceProxy *content_dir, GUPnPServiceProxyAction *action,
+ gpointer data) {
+
+ dev_ctx_T *dev_ctx_c = (dev_ctx_T*)data;
+ GUPnPServiceProxy *content_dir_proxy = GUPNP_SERVICE_PROXY (content_dir);
+ GError *error;
+ char *result;
+ guint32 number_returned;
+ guint32 total_matches;
+ char *found;
+ char subid[33];
+
+ gupnp_service_proxy_end_action (content_dir, action, &error,
+ "Result", G_TYPE_STRING, &result,
+ "NumberReturned", G_TYPE_UINT, &number_returned,
+ "TotalMatches", G_TYPE_UINT, &total_matches,
+ NULL);
+
+ if (number_returned == 0)
+ return;
+
+ if (number_returned == 1) {
+ found = strstr (result, "id=\"");
+ found += 4;
+ strncpy (subid, found, 32); subid[32] = '\0';
+
+ gupnp_service_proxy_begin_action (content_dir_proxy, "Browse", _rygel_content_cb, NULL,
+ "ObjectID", G_TYPE_STRING, subid,
+ "BrowseFlag", G_TYPE_STRING, "BrowseDirectChildren",
+ "Filter", G_TYPE_STRING, "@childCount",
+ "StartingIndex", G_TYPE_UINT, 0,
+ "RequestedCount", G_TYPE_UINT, 64,
+ "SortCriteria", G_TYPE_STRING, "",
+ NULL);
+ return;
+ }
+
+ if (number_returned > 1)
+ dev_ctx_c->content_res = strdup (result);
+}