* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
+/**
+ * SECTION:rtsp-sdp
+ * @short_description: Make SDP messages
+ * @see_also: #GstRTSPMedia
+ *
+ * Last reviewed on 2013-07-11 (1.0.0)
+ */
+
#include <string.h>
#include "rtsp-sdp.h"
static gboolean
get_info_from_tags (GstPad * pad, GstEvent ** event, gpointer user_data)
{
- GstSDPMedia * media = (GstSDPMedia *) user_data;
+ GstSDPMedia *media = (GstSDPMedia *) user_data;
if (GST_EVENT_TYPE (*event) == GST_EVENT_TAG) {
GstTagList *tags;
return TRUE;
if (!gst_tag_list_get_uint (tags, GST_TAG_MAXIMUM_BITRATE,
- &bitrate) || bitrate == 0)
+ &bitrate) || bitrate == 0)
if (!gst_tag_list_get_uint (tags, GST_TAG_BITRATE, &bitrate) ||
bitrate == 0)
return TRUE;
/* set bandwidth (kbits/s) */
- gst_sdp_media_add_bandwidth (media, GST_SDP_BWTYPE_AS, bitrate/1000);
+ gst_sdp_media_add_bandwidth (media, GST_SDP_BWTYPE_AS, bitrate / 1000);
return FALSE;
gst_object_unref (src_pad);
}
+static void
+make_media (GstSDPMessage * sdp, GstSDPInfo * info, GstRTSPMedia * media,
+ GstRTSPStream * stream, GstStructure * s, GstRTSPProfile profile)
+{
+ GstSDPMedia *smedia;
+ const gchar *caps_str, *caps_enc, *caps_params;
+ gchar *tmp;
+ gint caps_pt, caps_rate;
+ guint n_fields, j;
+ gboolean first;
+ GString *fmtp;
+ GstRTSPLowerTrans ltrans;
+ GSocketFamily family;
+ const gchar *addrtype, *proto;
+ gchar *address;
+ guint ttl;
+
+ gst_sdp_media_new (&smedia);
+
+ /* get media type and payload for the m= line */
+ caps_str = gst_structure_get_string (s, "media");
+ gst_sdp_media_set_media (smedia, caps_str);
+
+ gst_structure_get_int (s, "payload", &caps_pt);
+ tmp = g_strdup_printf ("%d", caps_pt);
+ gst_sdp_media_add_format (smedia, tmp);
+ g_free (tmp);
+
+ gst_sdp_media_set_port_info (smedia, 0, 1);
+
+ switch (profile) {
+ case GST_RTSP_PROFILE_AVP:
+ proto = "RTP/AVP";
+ break;
+ case GST_RTSP_PROFILE_AVPF:
+ proto = "RTP/AVPF";
+ break;
+ case GST_RTSP_PROFILE_SAVP:
+ proto = "RTP/SAVP";
+ break;
+ case GST_RTSP_PROFILE_SAVPF:
+ proto = "RTP/SAVPF";
+ break;
+ default:
+ proto = "udp";
+ break;
+ }
+ gst_sdp_media_set_proto (smedia, proto);
+
+ if (info->is_ipv6) {
+ addrtype = "IP6";
+ family = G_SOCKET_FAMILY_IPV6;
+ } else {
+ addrtype = "IP4";
+ family = G_SOCKET_FAMILY_IPV4;
+ }
+
+ ltrans = gst_rtsp_stream_get_protocols (stream);
+ if (ltrans == GST_RTSP_LOWER_TRANS_UDP_MCAST) {
+ GstRTSPAddress *addr;
+
+ addr = gst_rtsp_stream_get_multicast_address (stream, family);
+ if (addr == NULL)
+ goto no_multicast;
+
+ address = g_strdup (addr->address);
+ ttl = addr->ttl;
+ gst_rtsp_address_free (addr);
+ } else {
+ ttl = 16;
+ if (info->is_ipv6)
+ address = g_strdup ("::");
+ else
+ address = g_strdup ("0.0.0.0");
+ }
+
+ /* for the c= line */
+ gst_sdp_media_add_connection (smedia, "IN", addrtype, address, ttl, 1);
+ g_free (address);
+
+ /* get clock-rate, media type and params for the rtpmap attribute */
+ gst_structure_get_int (s, "clock-rate", &caps_rate);
+ caps_enc = gst_structure_get_string (s, "encoding-name");
+ caps_params = gst_structure_get_string (s, "encoding-params");
+
+ if (caps_enc) {
+ if (caps_params)
+ tmp = g_strdup_printf ("%d %s/%d/%s", caps_pt, caps_enc, caps_rate,
+ caps_params);
+ else
+ tmp = g_strdup_printf ("%d %s/%d", caps_pt, caps_enc, caps_rate);
+
+ gst_sdp_media_add_attribute (smedia, "rtpmap", tmp);
+ g_free (tmp);
+ }
+
+ /* the config uri */
+ tmp = gst_rtsp_stream_get_control (stream);
+ gst_sdp_media_add_attribute (smedia, "control", tmp);
+ g_free (tmp);
+
+ /* collect all other properties and add them to fmtp or attributes */
+ fmtp = g_string_new ("");
+ g_string_append_printf (fmtp, "%d ", caps_pt);
+ first = TRUE;
+ n_fields = gst_structure_n_fields (s);
+ for (j = 0; j < n_fields; j++) {
+ const gchar *fname, *fval;
+
+ fname = gst_structure_nth_field_name (s, j);
+
+ /* filter out standard properties */
+ if (!strcmp (fname, "media"))
+ continue;
+ if (!strcmp (fname, "payload"))
+ continue;
+ if (!strcmp (fname, "clock-rate"))
+ continue;
+ if (!strcmp (fname, "encoding-name"))
+ continue;
+ if (!strcmp (fname, "encoding-params"))
+ continue;
+ if (!strcmp (fname, "ssrc"))
+ continue;
+ if (!strcmp (fname, "clock-base"))
+ continue;
+ if (!strcmp (fname, "seqnum-base"))
+ continue;
+
+ if (g_str_has_prefix (fname, "a-")) {
+ /* attribute */
+ if ((fval = gst_structure_get_string (s, fname)))
+ gst_sdp_media_add_attribute (smedia, fname + 2, fval);
+ continue;
+ }
+ if (g_str_has_prefix (fname, "x-")) {
+ /* attribute */
+ if ((fval = gst_structure_get_string (s, fname)))
+ gst_sdp_media_add_attribute (smedia, fname, fval);
+ continue;
+ }
+
+ if ((fval = gst_structure_get_string (s, fname))) {
+ g_string_append_printf (fmtp, "%s%s=%s", first ? "" : ";", fname, fval);
+ first = FALSE;
+ }
+ }
+ if (!first) {
+ tmp = g_string_free (fmtp, FALSE);
+ gst_sdp_media_add_attribute (smedia, "fmtp", tmp);
+ g_free (tmp);
+ } else {
+ g_string_free (fmtp, TRUE);
+ }
+
+ update_sdp_from_tags (stream, smedia);
+
+ gst_sdp_message_add_media (sdp, smedia);
+ gst_sdp_media_free (smedia);
+
+ return;
+
+ /* ERRORS */
+no_multicast:
+ {
+ gst_sdp_media_free (smedia);
+ g_warning ("ignoring stream %d without multicast address",
+ gst_rtsp_stream_get_index (stream));
+ return;
+ }
+}
+
/**
* gst_rtsp_sdp_from_media:
* @sdp: a #GstSDPMessage
for (i = 0; i < n_streams; i++) {
GstRTSPStream *stream;
- GstSDPMedia *smedia;
- GstStructure *s;
- const gchar *caps_str, *caps_enc, *caps_params;
- gchar *tmp;
- gint caps_pt, caps_rate;
- guint n_fields, j;
- gboolean first;
- GString *fmtp;
GstCaps *caps;
- gint width, height;
+ GstStructure *s;
+ GstRTSPProfile profiles;
+ guint mask;
stream = gst_rtsp_media_get_stream (media, i);
caps = gst_rtsp_stream_get_caps (stream);
continue;
}
- gst_sdp_media_new (&smedia);
+ /* make a new media for each profile */
+ profiles = gst_rtsp_stream_get_profiles (stream);
+ mask = 1;
+ while (profiles >= mask) {
+ GstRTSPProfile prof = profiles & mask;
- /* get media type and payload for the m= line */
- caps_str = gst_structure_get_string (s, "media");
- gst_sdp_media_set_media (smedia, caps_str);
+ if (prof)
+ make_media (sdp, info, media, stream, s, prof);
- gst_structure_get_int (s, "payload", &caps_pt);
- tmp = g_strdup_printf ("%d", caps_pt);
- gst_sdp_media_add_format (smedia, tmp);
- g_free (tmp);
-
- gst_sdp_media_set_port_info (smedia, 0, 1);
- gst_sdp_media_set_proto (smedia, "RTP/AVP");
-
- /* for the c= line */
- gst_sdp_media_add_connection (smedia, "IN", info->server_proto,
- info->server_ip, 16, 0);
-
- /* get clock-rate, media type and params for the rtpmap attribute */
- gst_structure_get_int (s, "clock-rate", &caps_rate);
- caps_enc = gst_structure_get_string (s, "encoding-name");
- caps_params = gst_structure_get_string (s, "encoding-params");
-
- if (caps_enc) {
- if (caps_params)
- tmp = g_strdup_printf ("%d %s/%d/%s", caps_pt, caps_enc, caps_rate,
- caps_params);
- else
- tmp = g_strdup_printf ("%d %s/%d", caps_pt, caps_enc, caps_rate);
-
- gst_sdp_media_add_attribute (smedia, "rtpmap", tmp);
- g_free (tmp);
- }
-
- /* create framesize SDP attribute */
- if (gst_structure_get_int (s, "width", &width) && width > 0 &&
- gst_structure_get_int (s, "height", &height) && height > 0) {
- tmp = g_strdup_printf ("%d %d-%d", caps_pt, width, height);
- gst_sdp_media_add_attribute (smedia, "framesize", tmp);
- g_free (tmp);
-
- tmp = g_strdup_printf (" %d,%d", width, height);
- gst_sdp_media_add_attribute (smedia, "x-dimensions", tmp);
- g_free (tmp);
+ mask <<= 1;
}
-
- /* the config uri */
- tmp = g_strdup_printf ("stream=%d", i);
- gst_sdp_media_add_attribute (smedia, "control", tmp);
- g_free (tmp);
-
- /* collect all other properties and add them to fmtp */
- fmtp = g_string_new ("");
- g_string_append_printf (fmtp, "%d ", caps_pt);
- first = TRUE;
- n_fields = gst_structure_n_fields (s);
- for (j = 0; j < n_fields; j++) {
- const gchar *fname, *fval;
-
- fname = gst_structure_nth_field_name (s, j);
-
- /* filter out standard properties */
- if (!strcmp (fname, "media"))
- continue;
- if (!strcmp (fname, "payload"))
- continue;
- if (!strcmp (fname, "clock-rate"))
- continue;
- if (!strcmp (fname, "encoding-name"))
- continue;
- if (!strcmp (fname, "encoding-params"))
- continue;
- if (!strcmp (fname, "ssrc"))
- continue;
- if (!strcmp (fname, "clock-base"))
- continue;
- if (!strcmp (fname, "seqnum-base"))
- continue;
- if (!strcmp (fname, "width"))
- continue;
- if (!strcmp (fname, "height"))
- continue;
-
- if ((fval = gst_structure_get_string (s, fname))) {
- g_string_append_printf (fmtp, "%s%s=%s", first ? "" : ";", fname, fval);
- first = FALSE;
- }
- }
- if (!first) {
- tmp = g_string_free (fmtp, FALSE);
- gst_sdp_media_add_attribute (smedia, "fmtp", tmp);
- g_free (tmp);
- } else {
- g_string_free (fmtp, TRUE);
- }
-
- update_sdp_from_tags (stream, smedia);
-
- gst_sdp_message_add_media (sdp, smedia);
- gst_sdp_media_free (smedia);
gst_caps_unref (caps);
}
projects / platform / upstream / gstreamer.git / blobdiff