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ristsrc: Add support for dynamic payload
This commit ports functionality from the `rtpsrc` to make the `ristsrc` work with dynamic payload types. It adds two properties: - `caps` - `encoding-name` These can be used to make the `ristsrc` receive other payload types than the MPEG TS one. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5422>
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8057597dd2
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1 changed files with 128 additions and 12 deletions
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@ -41,6 +41,22 @@
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* gst-play-1.0 "rist://0.0.0.0:5004?receiver-buffer=700"
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* ]|
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*
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* In order to use a dynamic payload type the element needs to be able
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* to set the correct caps. It can be done through setting the #GstRistSrc:caps
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* property or one can use the #GstRistSrc:encoding-name property and the
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* element can work out the caps from it.
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*
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* ## Example pipelines for sending and receiving dynamic payload
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* |[
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* gst-launch-1.0 videotestsrc ! videoconvert ! x264enc ! h264parse ! \
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* rtph264pay ! ristsink address=127.0.0.1 port=5000
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* ]| Encode and payload H264 video from videotestsrc. The H264 RTP packets are
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* sent on port 5000.
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* |[
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* gst-launch-1.0 ristsrc address=0.0.0.0 port=5000 encoding-name="h264" ! \
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* rtph264depay ! h264parse ! matroskamux ! filesink location=h264.mkv
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* ] Receive and depayload the H264 video via RIST.
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*
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* Additionally, this element supports link bonding, which means it
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* can receive the same stream from multiple addresses. Each address
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* will be mapped to its own RTP session. In order to enable bonding
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@ -92,7 +108,9 @@ enum
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PROP_MULTICAST_LOOPBACK,
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PROP_MULTICAST_IFACE,
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PROP_MULTICAST_TTL,
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PROP_BONDING_ADDRESSES
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PROP_BONDING_ADDRESSES,
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PROP_CAPS,
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PROP_ENCODING_NAME
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};
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static GstStaticPadTemplate src_templ = GST_STATIC_PAD_TEMPLATE ("src",
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@ -156,6 +174,10 @@ struct _GstRistSrc
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* to fail state changes later */
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gboolean construct_failed;
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const gchar *missing_plugin;
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/* For handling dynamic payload */
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GstCaps *caps;
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gchar *encoding_name;
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};
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static void gst_rist_src_uri_init (gpointer g_iface, gpointer iface_data);
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@ -236,22 +258,52 @@ static GstCaps *
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gst_rist_src_request_pt_map (GstRistSrc * src, guint session_id, guint pt,
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GstElement * rtpbin)
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{
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const GstRTPPayloadInfo *pt_info;
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const GstRTPPayloadInfo *pt_info = NULL;
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GstCaps *ret;
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pt_info = gst_rtp_payload_info_for_pt (pt);
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if (!pt_info || !pt_info->clock_rate)
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return NULL;
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GST_DEBUG_OBJECT (src,
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"Requesting caps for session-id 0x%x and pt %u.", session_id, pt);
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ret = gst_caps_new_simple ("application/x-rtp",
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"media", G_TYPE_STRING, pt_info->media,
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"encoding_name", G_TYPE_STRING, pt_info->encoding_name,
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"clock-rate", G_TYPE_INT, (gint) pt_info->clock_rate, NULL);
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if (G_UNLIKELY (src->caps)) {
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GST_DEBUG_OBJECT (src,
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"Full caps were set, no need for lookup %" GST_PTR_FORMAT, src->caps);
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return gst_caps_copy (src->caps);
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}
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/* FIXME add sprop-parameter-set if any */
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g_warn_if_fail (pt_info->encoding_parameters == NULL);
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if (src->encoding_name != NULL) {
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/* Unfortunately, the media needs to be passed in the function. Since
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* it is not known, try for video if video not found. */
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pt_info = gst_rtp_payload_info_for_name ("video", src->encoding_name);
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if (pt_info == NULL)
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pt_info = gst_rtp_payload_info_for_name ("audio", src->encoding_name);
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return ret;
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}
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/* If we have not found any info from encoding-name we will try with a
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* static one. We need to check that is not a dynamic, since some encoders
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* do not use dynamic values. */
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if (pt_info == NULL) {
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if (!GST_RTP_PAYLOAD_IS_DYNAMIC (pt))
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pt_info = gst_rtp_payload_info_for_pt (pt);
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}
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if (pt_info != NULL) {
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ret = gst_caps_new_simple ("application/x-rtp",
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"media", G_TYPE_STRING, pt_info->media,
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"encoding-name", G_TYPE_STRING, pt_info->encoding_name,
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"clock-rate", G_TYPE_INT, (gint) pt_info->clock_rate, NULL);
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GST_DEBUG_OBJECT (src, "Decided on caps %" GST_PTR_FORMAT, ret);
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/* FIXME add sprop-parameter-set if any */
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g_warn_if_fail (pt_info->encoding_parameters == NULL);
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return ret;
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}
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GST_DEBUG_OBJECT (src,
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"Could not determine caps based on pt or encoding name.");
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return NULL;
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}
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static GstElement *
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@ -407,6 +459,9 @@ gst_rist_src_init (GstRistSrc * src)
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g_mutex_init (&src->bonds_lock);
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src->bonds = g_ptr_array_new ();
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src->encoding_name = NULL;
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src->caps = NULL;
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/* Construct the RIST RTP receiver pipeline.
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*
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* udpsrc -> [recv_rtp_sink_%u] -------- [recv_rtp_src_%u_%u_%u]
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@ -1118,6 +1173,14 @@ gst_rist_src_get_property (GObject * object, guint prop_id,
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g_value_take_string (value, gst_rist_src_get_bonds (src));
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break;
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case PROP_CAPS:
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gst_value_set_caps (value, src->caps);
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break;
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case PROP_ENCODING_NAME:
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g_value_set_string (value, src->encoding_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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@ -1218,6 +1281,31 @@ gst_rist_src_set_property (GObject * object, guint prop_id,
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gst_rist_src_set_bonds (src, g_value_get_string (value));
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break;
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case PROP_CAPS:
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{
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const GstCaps *new_caps_val = gst_value_get_caps (value);
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GstCaps *new_caps = NULL;
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if (new_caps_val != NULL)
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new_caps = gst_caps_copy (new_caps_val);
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gst_caps_replace (&src->caps, new_caps);
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break;
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}
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case PROP_ENCODING_NAME:
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{
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g_free (src->encoding_name);
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src->encoding_name = g_value_dup_string (value);
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if (bond->rtp_src) {
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GstCaps *caps = gst_rist_src_request_pt_map (src, 0, 96, NULL);
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g_object_set (G_OBJECT (bond->rtp_src), "caps", caps, NULL);
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gst_caps_unref (caps);
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}
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break;
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}
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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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@ -1246,6 +1334,9 @@ gst_rist_src_finalize (GObject * object)
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g_clear_object (&src->jitterbuffer);
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g_clear_object (&src->rtxbin);
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gst_caps_unref (src->caps);
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g_free (src->encoding_name);
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g_mutex_unlock (&src->bonds_lock);
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g_mutex_clear (&src->bonds_lock);
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@ -1350,6 +1441,31 @@ gst_rist_src_class_init (GstRistSrcClass * klass)
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"Comma (,) separated list of <address>:<port> to receive from. "
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"Only used if 'enable-bonding' is set.", NULL,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstRistSrc:encoding-name:
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*
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* Set the encoding name of the stream to use. This is a short-hand for
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* the full caps and maps typically to the encoding-name in the RTP caps.
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*
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* Since: 1.24
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*/
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g_object_class_install_property (object_class, PROP_ENCODING_NAME,
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g_param_spec_string ("encoding-name", "Caps encoding name",
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"Encoding name use to determine caps parameters",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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/**
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* GstRistSrc:caps:
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*
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* The RTP caps of the incoming RIST stream.
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*
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* Since: 1.24
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*/
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g_object_class_install_property (object_class, PROP_CAPS,
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g_param_spec_boxed ("caps", "Caps",
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"The caps of the incoming stream", GST_TYPE_CAPS,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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}
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static GstURIType
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