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rtspsrc: if transport protocol unsupported, try another one

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Also change error message to more accurately reflect cases in which
it can occur.
This commit is contained in:
Mark Nauwelaerts 2009-09-25 14:14:03 +02:00
parent 03f46a42e5
commit 50d5c8dce5
1 changed files with 35 additions and 7 deletions
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42
gst/rtsp/gstrtspsrc.c
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@ -3982,6 +3982,15 @@ no_setup:
}
}
/* masks to be kept in sync with the hardcoded protocol order of preference
* in code below */
static guint protocol_masks[] = {
GST_RTSP_LOWER_TRANS_UDP,
GST_RTSP_LOWER_TRANS_UDP_MCAST,
GST_RTSP_LOWER_TRANS_TCP,
0
};
static GstRTSPResult
gst_rtspsrc_create_transports_string (GstRTSPSrc * src,
GstRTSPLowerTrans protocols, gchar ** transports)
@ -4185,6 +4194,7 @@ gst_rtspsrc_setup_streams (GstRTSPSrc * src)
for (walk = src->streams; walk; walk = g_list_next (walk)) {
gchar *transports;
gint retry = 0;
guint mask = 0;
stream = (GstRTSPStream *) walk->data;
@ -4225,9 +4235,18 @@ gst_rtspsrc_setup_streams (GstRTSPSrc * src)
GST_DEBUG_OBJECT (src, "doing setup of stream %p with %s", stream,
stream->setup_url);
/* first selectable protocol */
while (protocol_masks[mask] && !(protocols & protocol_masks[mask]))
mask++;
if (!protocol_masks[mask])
goto no_protocols;
retry:
/* create a string with all the transports */
res = gst_rtspsrc_create_transports_string (src, protocols, &transports);
GST_DEBUG_OBJECT (src, "protocols = 0x%x, protocol mask = 0x%x", protocols,
protocol_masks[mask]);
/* create a string with first transport in line */
res = gst_rtspsrc_create_transports_string (src,
protocols & protocol_masks[mask], &transports);
if (res < 0)
goto setup_transport_failed;
@ -4281,12 +4300,20 @@ gst_rtspsrc_setup_streams (GstRTSPSrc * src)
retry++;
goto retry;
}
/* give up on this stream and move to the next stream,
* but not without doing some postprocessing so we can
/* this transport did not go down well, but we may have others to try
* that we did not send yet, try those and only give up then
* but not without checking for lost cause/extension so we can
* post a nicer/more useful error message later */
if (!unsupported_real)
unsupported_real = gst_rtspsrc_stream_is_real_media (stream);
continue;
/* select next available protocol, give up on this stream if none */
mask++;
while (protocol_masks[mask] && !(protocols & protocol_masks[mask]))
mask++;
if (!protocol_masks[mask] || unsupported_real)
continue;
else
goto retry;
default:
/* cleanup of leftover transport and move to the next stream */
gst_rtspsrc_stream_free_udp (stream);
@ -4430,8 +4457,9 @@ nothing_to_activate:
(NULL));
} else {
GST_ELEMENT_ERROR (src, STREAM, CODEC_NOT_FOUND,
(_("No supported stream was found. You might be missing the right "
"GStreamer RTSP extension plugin.")), (NULL));
(_("No supported stream was found. You might need to allow "
"more transport protocols or may otherwise be missing "
"the right GStreamer RTSP extension plugin.")), (NULL));
}
return FALSE;
}