[Live-devel] Streaming Speed Limited for HD files?

[Hernandez, Fernando]

Curiously, I've recently discovered that VLC does indeed work properly
(I had incorrectly reported that it didn't work properly in my first
message).  I can stream video when I connect the server directly to a
windows PC running VLC and there are no problems.  It seems the culprit
is openRTSP.
 
I have run openRTSP using the -Q option and have obtained the following
results:
 
On a 54 second, 20.5 megabit/sec (2.56 megabyte/sec) file:
 
begin_QOS_statistics
server_availability     100
stream_availability     100
subsession      video/MP2T
num_packets_received    49321
num_packets_lost        49688
elapsed_measurement_time        54.000413
kBytes_received_total   64906.436000
measurement_sampling_interval_ms        1000
kbits_per_second_min    9142.692492
kbits_per_second_ave    9615.694754
kbits_per_second_max    14046.087149
packet_loss_percentage_min      9.858204
packet_loss_percentage_ave      50.185337
packet_loss_percentage_max      54.291732
inter_packet_gap_ms_min 0.656000
inter_packet_gap_ms_ave 1.094857
inter_packet_gap_ms_max 6.700000
end_QOS_statistics
 
On a 102 second, 18.59 megabit/sec (2.32 megabyte/sec) file:
 
begin_QOS_statistics
server_availability     100
stream_availability     100
subsession      video/MP2T
num_packets_received    93407
num_packets_lost        94021
elapsed_measurement_time        102.000721
kBytes_received_total   122923.612000
measurement_sampling_interval_ms        1000
kbits_per_second_min    8721.029974
kbits_per_second_ave    9640.999459
kbits_per_second_max    14157.979671
packet_loss_percentage_min      8.813559
packet_loss_percentage_ave      50.163796
packet_loss_percentage_max      59.776767
inter_packet_gap_ms_min 0.637000
inter_packet_gap_ms_ave 1.091995
inter_packet_gap_ms_max 75.330000
end_QOS_statistics

 
For the test I am running I need to use openRTSP to prove that a certain
bit rate is being achieved.  Do you have any suggestions as to what may
be wrong?
 
-Fernando
 
 
 
 


________________________________

From: live-devel-bounces at ns.live555.com
[mailto:live-devel-bounces at ns.live555.com] On Behalf Of Ross Finlayson
Sent: Wednesday, May 16, 2007 6:54 PM
To: LIVE555 Streaming Media - development & use
Subject: Re: [Live-devel] Streaming Speed Limited for HD files?



	From this site I'm using the HD football clip at the top, and
the soap opera clip at the bottom.
	http://www.dododge.net/roku/ts-samples.html
<http://www.dododge.net/roku/ts-samples.html> 


I wasn't able to reproduce your problem using *any* of the 4 files on
that site.  Are you sure you're getting the same problem with these
files (using the original, unmodified "live555MediaServer" application)?
If so, then I have no idea why it might not be working for you.
-- 

Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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