static const gchar *
kms_sdp_group_manager_get_group_val (KmsSdpGroupManager * obj,
const gchar * semantics, const GstSDPMessage * msg)
{
const gchar *val;
guint i;
for (i = 0;; i++) {
gchar **values;
gboolean found;
val = gst_sdp_message_get_attribute_val_n (msg, GROUP_ATTR_VALUE, i);
if (val == NULL) {
/* No more group attributes */
return NULL;
}
values = g_strsplit (val, " ", 2);
found = g_strcmp0 (semantics, values[0]) == 0;
g_strfreev (values);
if (found) {
return val;
}
}
}
static gboolean
kms_sdp_group_manager_is_handler_valid_for_groups_impl (KmsSdpGroupManager *
obj, const GstSDPMedia * media, const GstSDPMessage * offer,
KmsSdpHandler * handler)
{
KmsSdpBaseGroup *group = NULL;
gboolean ret = FALSE;
const gchar *mid;
mid = gst_sdp_media_get_attribute_val (media, "mid");
group = kms_sdp_group_manager_get_group (obj, handler);
if (mid == NULL) {
/* handler will be compatible if has no group */
ret = group == NULL;
goto end;
}
if (group != NULL) {
const gchar *val;
gchar *semantics;
g_object_get (group, "semantics", &semantics, NULL);
val = kms_sdp_group_manager_get_group_val (obj, semantics, offer);
g_free (semantics);
if (val == NULL) {
/* handler belongs to a group that this media does not */
ret = FALSE;
} else {
ret = is_mid_in_group (val, mid);
}
} else {
gint i;
/* handler does not belong to any group, it will be incompatible if */
/* media does */
for (i = 0;; i++) {
const gchar *val;
val = gst_sdp_message_get_attribute_val_n (offer, GROUP_ATTR_VALUE, i);
if (val == NULL) {
/* No more group attributes */
ret = TRUE;
break;
}
if (is_mid_in_group (val, mid)) {
break;
}
}
}
end:
g_clear_object (&group);
return ret;
}
gboolean
kms_sdp_message_context_parse_groups_from_offer (SdpMessageContext * ctx,
const GstSDPMessage * offer, GError ** error)
{
guint i, gid = 0;
for (i = 0;; i++) {
SdpMediaGroup *mgroup;
gboolean is_bundle;
const gchar *val;
gchar **grp;
guint j;
val = gst_sdp_message_get_attribute_val_n (offer, "group", i);
if (val == NULL) {
return TRUE;
}
grp = g_strsplit (val, " ", 0);
is_bundle = g_strcmp0 (grp[0] /* group type */ , "BUNDLE") == 0;
if (!is_bundle) {
GST_WARNING ("Group '%s' is not supported", grp[0]);
g_strfreev (grp);
continue;
}
mgroup = kms_sdp_message_context_create_group (ctx, gid++);
for (j = 1; grp[j] != NULL; j++) {
SdpMediaConfig *mconf;
mconf = kms_sdp_context_new_media_config (g_slist_length (ctx->medias),
g_strdup (grp[j]), NULL);
ctx->medias = g_slist_append (ctx->medias, mconf);
if (!kms_sdp_message_context_add_media_to_group (mgroup, mconf, error)) {
g_strfreev (grp);
return FALSE;
}
}
g_strfreev (grp);
}
}
static GstRTSPResult
gst_rtsp_wms_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
GstStructure * props)
{
const gchar *config, *maxps;
gint i;
GstRTSPWMS *ctx = (GstRTSPWMS *) ext;
if (!ctx->active)
return GST_RTSP_OK;
for (i = 0; (config = gst_sdp_message_get_attribute_val_n (sdp, "pgmpu", i));
i++) {
if (g_str_has_prefix (config, HEADER_PREFIX)) {
config += strlen (HEADER_PREFIX);
gst_structure_set (props, "config", G_TYPE_STRING, config, NULL);
break;
}
}
if (config == NULL)
goto no_config;
gst_structure_set (props, "config", G_TYPE_STRING, config, NULL);
maxps = gst_sdp_message_get_attribute_val (sdp, "maxps");
if (maxps)
gst_structure_set (props, "maxps", G_TYPE_STRING, maxps, NULL);
gst_structure_set (props, "encoding-name", G_TYPE_STRING, "X-ASF-PF", NULL);
gst_structure_set (props, "media", G_TYPE_STRING, "application", NULL);
return GST_RTSP_OK;
/* ERRORS */
no_config:
{
GST_DEBUG_OBJECT (ctx, "Could not find config SDP field, deactivating.");
ctx->active = FALSE;
return GST_RTSP_OK;
}
}
