Buffer live streams?

I am using Serviio 0.6.2 on Ubuntu 11.10. I came across this page http://wiki.serviio.org/doku.php?id=live_stream_folders and I have to say I'm thoroughly impressed by it. my only issue is that some of the channels (HD especially) can stutter. I presume it's due to a buffering issue and I wondered if Serviio or my computer could buffer the stream before streaming it to my Sony Bravia KDL-40CX523?

Thanks for any help, I have been a user for a year now and have donated money to the cause - keep up the good work!

[serviio-buddy]

Stuttering on live streams can be caused by any or a combination of the following:

1. slow hardware
2. insufficient RAM
3. low disk space
4. other simultaneous processes running on Serviio server using lots of CPU time
5. router problems or congestion
6. internet download speed too slow
7. wireless lan too slow
8. actual live stream causing the stuttering
9. transcoding - if file won't play natively on your renderer, then transcoding requires more CPU power

You can try to compare your media player device to VLC or XBMC to notice differences in stuttering.

What hardware are you using on the Serviio server?

  Code:

00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (secondary) (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.1 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) IDE Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
04:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 01)
05:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN [Kedron] Network Connection (rev 61)
0c:04.0 CardBus bridge: Texas Instruments PCIxx12 Cardbus Controller
0c:04.1 FireWire (IEEE 1394): Texas Instruments PCIxx12 OHCI Compliant IEEE 1394 Host Controller
0c:04.2 Mass storage controller: Texas Instruments 5-in-1 Multimedia Card Reader (SD/MMC/MS/MS PRO/xD)
0c:04.3 SD Host controller: Texas Instruments PCIxx12 SDA Standard Compliant SD Host Controller


250 GB hard drive
BTHomeHub connected through ethernet decent download speed of about 15Mbits/s

[serviio-buddy]

What is the hardware of the PC (CPU, number of cores, memory, OS) that Serviio is running on?

Toshiba Satellite Pro P205-S8811, 4GB RAM, Intel Core 2 Duo CPU T5450 @ 1.66 Ghz

[serviio-buddy]

Your system may be too slow to transcode on-the-fly high bitrate streams. My system uses the AMD Athlon 64 X2 Dual Core Processor 4600+ 2.40 GHz with 2 GB RAM and it exhibits the same type of stuttering problems on high bitrate streams.

so no chance of buffering the live streams into a temp folder on the computer?

[serviio-buddy]

so no chance of buffering the live streams into a temp folder on the computer?

That's certainly a good question.

You might have a look at this thread: viewtopic.php?f=10&t=3810&p=36247&hilit=increase+buffer#p36247

It talks about mkv files stuttering and zip said "you could try to increase network socket buffer. Default is 64536".

Zip also posted a link to "Supported system properties" which includes the network socket buffer here: http://www.serviio.org/index.php?option ... icle&id=43