gst/rtsp/gstrtspsrc.*: Parse bandwidth modifiers, they are not yet configured in the session manager because we don't...

Original commit message from CVS:
* gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_get_bandwidth),
(gst_rtspsrc_collect_bandwidth), (gst_rtspsrc_create_stream),
(gst_rtspsrc_media_to_caps), (gst_rtspsrc_loop_interleaved):
* gst/rtsp/gstrtspsrc.h:
Parse bandwidth modifiers, they are not yet configured in the session
manager because we don't have an API for that yet.

ChangeLog

@@ -1,3 +1,12 @@
+2007-10-01  Wim Taymans  <wim.taymans@gmail.com>
+
+	* gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_get_bandwidth),
+	(gst_rtspsrc_collect_bandwidth), (gst_rtspsrc_create_stream),
+	(gst_rtspsrc_media_to_caps), (gst_rtspsrc_loop_interleaved):
+	* gst/rtsp/gstrtspsrc.h:
+	Parse bandwidth modifiers, they are not yet configured in the session
+	manager because we don't have an API for that yet.
+
 2007-10-01  Wim Taymans  <wim.taymans@gmail.com>
 
 	* gst/rtsp/gstrtspsrc.c: (gst_rtspsrc_parse_rtpmap),

gst/rtsp/gstrtspsrc.c

@@ -537,6 +537,53 @@ find_stream (GstRTSPSrc * src, gconstpointer data, gconstpointer func)
   return NULL;
 }
 
+static const GstSDPBandwidth *
+gst_rtspsrc_get_bandwidth (GstRTSPSrc * src, const GstSDPMessage * sdp,
+    const GstSDPMedia * media, const gchar * type)
+{
+  guint i, len;
+
+  /* first look in the media specific section */
+  len = gst_sdp_media_bandwidths_len (media);
+  for (i = 0; i < len; i++) {
+    const GstSDPBandwidth *bw = gst_sdp_media_get_bandwidth (media, i);
+
+    if (strcmp (bw->bwtype, type) == 0)
+      return bw;
+  }
+  /* then look in the message specific section */
+  len = gst_sdp_message_bandwidths_len (sdp);
+  for (i = 0; i < len; i++) {
+    const GstSDPBandwidth *bw = gst_sdp_message_get_bandwidth (sdp, i);
+
+    if (strcmp (bw->bwtype, type) == 0)
+      return bw;
+  }
+  return NULL;
+}
+
+static void
+gst_rtspsrc_collect_bandwidth (GstRTSPSrc * src, const GstSDPMessage * sdp,
+    const GstSDPMedia * media, GstRTSPStream * stream)
+{
+  const GstSDPBandwidth *bw;
+
+  if ((bw = gst_rtspsrc_get_bandwidth (src, sdp, media, GST_SDP_BWTYPE_AS)))
+    stream->as_bandwidth = bw->bandwidth;
+  else
+    stream->as_bandwidth = -1;
+
+  if ((bw = gst_rtspsrc_get_bandwidth (src, sdp, media, GST_SDP_BWTYPE_RR)))
+    stream->rr_bandwidth = bw->bandwidth;
+  else
+    stream->rr_bandwidth = -1;
+
+  if ((bw = gst_rtspsrc_get_bandwidth (src, sdp, media, GST_SDP_BWTYPE_RS)))
+    stream->rs_bandwidth = bw->bandwidth;
+  else
+    stream->rs_bandwidth = -1;
+}
+
 static GstRTSPStream *
 gst_rtspsrc_create_stream (GstRTSPSrc * src, GstSDPMessage * sdp, gint idx)
 {
@@ -561,6 +608,9 @@ gst_rtspsrc_create_stream (GstRTSPSrc * src, GstSDPMessage * sdp, gint idx)
   stream->eos = FALSE;
   stream->discont = TRUE;
 
+  /* collect bandwidth information for this steam */
+  gst_rtspsrc_collect_bandwidth (src, sdp, media, stream);
+
   /* we must have a payload. No payload means we cannot create caps */
   /* FIXME, handle multiple formats. */
   if ((payload = gst_sdp_media_get_format (media, 0))) {
@@ -584,6 +634,7 @@ gst_rtspsrc_create_stream (GstRTSPSrc * src, GstSDPMessage * sdp, gint idx)
    * the RTP-Info header field returned from PLAY. */
   control_url = gst_sdp_media_get_attribute_val (media, "control");
 
+
   GST_DEBUG_OBJECT (src, "stream %d, (%p)", stream->id, stream);
   GST_DEBUG_OBJECT (src, " pt: %d", stream->pt);
   GST_DEBUG_OBJECT (src, " container: %d", stream->container);

gst/rtsp/gstrtspsrc.h

@@ -120,6 +120,11 @@ struct _GstRTSPStream {
   guint32       ssrc; 
   guint32       seqbase;
   guint64       timebase;
+
+  /* bandwidth */
+  guint         as_bandwidth;
+  guint         rs_bandwidth;
+  guint         rr_bandwidth;
 };
 
 struct _GstRTSPSrc {