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Code Issues 1 Projects Releases Wiki Activity

sdpdemux: add "media" property to allow audio-only or video-only streaming

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3531>
This commit is contained in:
Tim-Philipp Müller 2022-12-06 16:30:32 +00:00
parent 7f2a9d738a
commit beb4f4bff1
3 changed files with 47 additions and 0 deletions
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12
subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
View file

@ -229367,6 +229367,18 @@
"type": "guint",
"writable": true
},
"media": {
"blurb": "Media to use, e.g. audio or video (NULL = all)",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "NULL",
"mutable": "null",
"readable": true,
"type": "gchararray",
"writable": true
},
"redirect": {
"blurb": "Sends a redirection message instead of using a custom session element",
"conditionally-available": false,

34
subprojects/gst-plugins-bad/gst/sdp/gstsdpdemux.c
View file

@ -190,6 +190,18 @@ gst_sdp_demux_class_init (GstSDPDemuxClass * klass)
DEFAULT_RTCP_MODE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT | G_PARAM_STATIC_STRINGS));
/**
* GstSDPDemux:media:
*
* Media to use, e.g. audio or video (NULL=allow all).
*
* Since: 1.24
*/
g_object_class_install_property (gobject_class, PROP_MEDIA,
g_param_spec_string ("media", "Media",
"Media to use, e.g. audio or video (NULL = all)", DEFAULT_MEDIA,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (gstelement_class, &sinktemplate);
gst_element_class_add_static_pad_template (gstelement_class, &rtptemplate);
@ -266,6 +278,12 @@ gst_sdp_demux_set_property (GObject * object, guint prop_id,
case PROP_RTCP_MODE:
demux->rtcp_mode = g_value_get_enum (value);
break;
case PROP_MEDIA:
GST_OBJECT_LOCK (demux);
/* g_intern_string() is NULL-safe */
demux->media = g_intern_string (g_value_get_string (value));
GST_OBJECT_UNLOCK (demux);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -296,6 +314,11 @@ gst_sdp_demux_get_property (GObject * object, guint prop_id, GValue * value,
case PROP_RTCP_MODE:
g_value_set_enum (value, demux->rtcp_mode);
break;
case PROP_MEDIA:
GST_OBJECT_LOCK (demux);
g_value_set_string (value, demux->media);
GST_OBJECT_UNLOCK (demux);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -436,6 +459,7 @@ static GstSDPStream *
gst_sdp_demux_create_stream (GstSDPDemux * demux, GstSDPMessage * sdp, gint idx)
{
GstSDPStream *stream;
const gchar *media_filter;
const gchar *payload;
const GstSDPMedia *media;
const GstSDPConnection *conn;
@ -445,6 +469,16 @@ gst_sdp_demux_create_stream (GstSDPDemux * demux, GstSDPMessage * sdp, gint idx)
if (media == NULL)
return NULL;
GST_OBJECT_LOCK (demux);
media_filter = demux->media;
GST_OBJECT_UNLOCK (demux);
if (media_filter != NULL && !g_str_equal (media_filter, media->media)) {
GST_INFO_OBJECT (demux, "Skipping media %s (filter: %s)", media->media,
media_filter);
return NULL;
}
stream = g_new0 (GstSDPStream, 1);
stream->parent = demux;
/* we mark the pad as not linked, we will mark it as OK when we add the pad to

1
subprojects/gst-plugins-bad/gst/sdp/gstsdpdemux.h
View file

@ -118,6 +118,7 @@ struct _GstSDPDemux {
guint64 udp_timeout;
guint latency;
gboolean redirect;
const gchar *media; /* if non-NULL only hook up these kinds of media (video/audio) */ /* interned string */
GstSDPDemuxRTCPMode rtcp_mode;
/* session management */