Hi George,
Yes, you are right. The playlist file and multicast description file
are not
functioning properly. I used to type my playlist file, which is shown
at the
end of my original post, in a text editor. Now I tried using the DSS
web
admin to create a movie playlist as follows.
Name: untitled Play Mode: Sequential Looped
Mount Point: untitled.sdp Repetition: 1
I dragged a movie named Towers.mp4 into the playlist and ticked the
"Log
this playlist's activity" and "Send this playlist to a broadcast
server"
with IP address of 127.0.0.1 and left "User Name" and "Password" blank.
But the playlist can not be started. Below is the Playlist Error Log
**************************************************************
PlaylistBroadcaster broadcast description File
----------------------------------------------
/var/streaming/playlists/untitled/untitled.config
Description File Settings
----------------------------
destination_ip_address 127.0.0.1
destination_sdp_file untitled.sdp
destination_base_port 5004
play_mode sequential_looped
recent_movies_list_size 0
playlist_file /var/streaming/playlists/untitled/untitled.playlist
logging enabled
log_file /var/streaming/playlists/untitled/untitled.log
sdp_file /var/streaming/playlists/untitled/untitled.sdp
max_upcoming_list_size 7
show_current enabled
show_upcoming enabled
broadcaster_name ""
broadcaster_password "XXXXX"
multicast_ttl 1
rtsp_port 554
client_buffer_delay default
pid_file /var/streaming/playlists/untitled/untitled.pid
broadcast_SDP_is_dynamic enabled
broadcast_start_time 0 (allow all)
broadcast_end_time 0 (unbounded)
============================
There is (1) movie in the Playlist.
Ref Movie = /usr/local/movies//Towers.mp4
SDP file = /var/streaming/playlists/untitled/untitled.sdp
Problems found
--------------
- Movie set up failed: Movie file does not match SDP.
(file: /usr/local/movies//Towers.mp4 err: 16 Movie file does not
match
SDP.)
- PlaylistBroadcaster found one problem movie file.
There are no valid movies to play
Warnings: 1
Errors: 1
PlaylistBroadcaster preflight finished.
****************************************************************
The auto generated playlist file is as below.
****************************************************************
*PLAY-LIST*
#
# Created by QTSS Admin CGI Server
#
"/usr/local/movies//Towers.mp4" 5
****************************************************************
Even though I modified the playlist file by removing the redundant "/"
in
front of the movie file name and amended the multicast description
file as
the input to PlaylistBroadcaster, the SDP mismatch problem still
persists.
I would be grateful if you could give me some idea.
Thanks and regards,
Zhigao
-----Original Message-----
From: George Cook [mailto:email@hidden]
Sent: Tuesday, January 25, 2005 9:27 AM
To: Chen Zhigao
Cc: email@hidden
Subject: Re: SDP Problem during Multicast
Chen:
First, make sure that your playlist is functioning properly. You
should be
able to tune in on the playlist:
rtsp://<server address>/<path>/<playlist sdp file>
If you can't access a reflected unicast of the playlist, the relay
won't
have anything to relay to the multicast address. From the error
message, it
sounds like the playlist isn't running properly. How are you creating
the
playlist? You might want to try using web admin
(Darwin) or QTSS Publisher (on QTSS) to create and start your playlist.
Once the playlist is working, use the steps to create the multicast
relay.
-George
On Jan 24, 2005, at 3:03 AM, Chen Zhigao wrote:
Dear George,
Thanks for the info. I've tried configuring a rely according to the
instructions at the link, but the multicast datagrams sent out. And
the log file still says "Error:Movie file does not match SDP." Below
are what I have done. Am I missing something?
Step 1:
Point my browser to http://127.0.0.1:1220. At the "Relay Settings", I
added a new relay with the following settings.
Source IP: 127.0.0.1, Mount Points:
/usr/local/movies/thinkpad_mcast.sdp,
Request Incoming stream
Destination IP: 224.10.11.12, Relay via UDP base port: 9000, Multicast
TTL: 4
Step 2: skipped.
Step 3:
run "PlaylistBroadcast thinkpad_mcast" at server computer. The
generated SDP file says "c=IN IP4 22.10.11.12/4", "m=video 9000
RTP/AVP 96" and "m=audio
9002 RTP/AVP 97". It seems I don't need to modify the file.
I am a bit confused here. How should I deal with the file? Shall I
transfer it to my client computers. BTW, I am using the gmp4player of
the MPEGP4IP.
The relay I created is not shown at the "Relay Status" of the QSS
admin webpage.
Any pointer is highly appreciated.
Best regards,
Zhigao
-----Original Message-----
From: George Cook [mailto:email@hidden]
Sent: Friday, January 21, 2005 7:15 AM
To: Zhigao Chen
Cc: email@hidden
Subject: Re: SDP Problem during Multicast
You can multicast a playlist by relaying the playlist to a multicast
address. For more information on setting up a multicast relay see:
http://soundscreen.com/streaming/relay.html#multicast
In step 1 on the web page above, the source of your relay would be the
loopback address (127.0.0.1) and the mount point would be the sdp file
generated by Playlist Broadcaster. Skip step 2. In step 3 use the sdp
file generated by Playlist Broadcaster as the starting point for your
multicast sdp file.
-George
On Jan 18, 2005, at 3:50 AM, Zhigao Chen wrote:
Further to my previous email. Below is the SDP file generated by
PlaylistBroadcaster.
--------------------------------------------
v=0
o=QTSS_Play_List 4034490386 3077131889 IN IP4 10.81.114.102
s=thinkpad_mcast.sdp c=IN IP4 224.10.11.12/15 t=0 0
a=x-broadcastcontrol:TIME
a=isma-compliance:1,1.0,1
a=mpeg4-iod:
"data:application/mpeg4-iod;base64,AoCAgwMAT///DwH/
A4CAggAAB0DcZGF0YTphcHBsaWNhdGlvbi9tcGVnNC1vZC1hdTtiYXNlNjQsQVlDQWdRU
U
J
nSUNBS1FLZkE0Q0FnQ0lBQlFBRWdJQ0FGRUFWQUFDOEFBRUcrQUFCQU5VRmdJQ0FBaEdR
Q
m
9DQWdBRUFBWUNBZ0ZFRkh3T0FnSUJLQUFFQUJJQ0FnRHdnRVFBUTdRQUNvY2dBQVBzN0J
Z
Q
0FnQ29BQUFFQUFBQUJJQURFalloZHJRVUVEeFJqQUFBQnNrWkdiWEJsWnpBdU5DNDJZal
E
y
TkRZQWZ3QUdnSUNBQVFBPQSAgIANAQUAAIkAAAAAAAAAAAaAgIAJAQAAAAAAAAAAA4CAg
H
I
ACEBGZGF0YTphcHBsaWNhdGlvbi9tcGVnNC1iaWZzLWF1O2Jhc2U2NCx3QkFTZ1RBcUJX
M
G
1FRUg4QUFBQi9BQUFCRUtDS0NuNASAgIAVAg0AABgAAAAAAAAAAAWAgIADAABgBoCAgAk
B
A
AAAAAAAAAA="
m=video 5004 RTP/AVP 96
a=control:trackID=1
a=rtpmap:96 MP4V-ES/90000
a=mpeg4-esid:1
a=fmtp:96 profile-level-id=1;
config=000001000000012000c48d885dad05040f1463000001b246466d706567302e
3
4
2e366234363436007f00;
m=audio 5006 RTP/AVP 97
a=control:trackID=2
a=rtpmap:97 mpeg4-generic/48000/2
a=mpeg4-esid:5
a=fmtp:97 streamtype=5; profile-level-id=15; mode=AAC-hbr;
config=1190; SizeLength=13; IndexLength=3; IndexDeltaLength=3;
Profile=1;
---------------------------------------------
On Tue, 2005-01-18 at 16:43, Zhigao Chen wrote:
Dear folks,
I was trying to use PlaylistBroadcast to multicast two MPEG4 video.
However, there are no multicast IP datagrams sent out from my
DarwinStreamingServer. The log file says "Error:Movie file does not
match SDP". The configuration files I used are as below.
I would appreciate it if you could give me some pointers.
Zhigao
===========================================
My playlist file "thinkpad_playlist".
-----------------------------------
*PLAY-LIST*
gullivers_travels1939_64kb.mp4
Towers.mp4
------------------------------------
My multicast description file "thinkpad_mcast"
-------------------------------------------
playlist_file thinkpad_playlist
play_mode sequential_looped
sdp_reference_movie gullivers_travels1939_64kb.mp4
destination_ip_address 224.10.11.12 destination_base_port 5004
multicast_ttl 15 logging enabled
--------------------------------------------
logfile generated.
--------------------------------------------
#Log File Created On: 01/18/2005 16:26:26
#Software: PlaylistBroadcaster
#Version: 5.0.1.1
#Date: 2005-01-18 16:26:26
#Remark: All date values are in local time.
#Fields: date time filepath title copyright comment author artist
album duration result
#Remark: 2005-01-18 16:26:26 Towers.mp4 Error:Movie file does not
match SDP.
2005-01-18 16:26:26 'gullivers_travels1939_64kb.mp4' '-' '-' '-' '-'
'-'
'-' 0
16
#Remark: 2005-01-18 16:26:26 gullivers_travels1939_64kb.mp4
Error:Movie file does not match SDP.
2005-01-18 16:26:26 'Towers.mp4' '-' '-' '-' '-' '-' '-' 0 16
---------------------------------------------
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