Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

View this topic in a long page with up to 500 replies per page Create new topic
1 | 2 

730 posts

Ultimate Geek
+1 received by user: 61

  Reply # 141067 28-Jun-2008 17:46
Send private message

I am now confident recording DVB-T MPEG4 on a relatively low spec PC eg my P4 2.4

A further update and caution advisory

I currently record analogue SD as MPEG4 as it send my P4 2.4 CPU to 80-100% CPU depending which codec I use. The M$ MPEG-4 codec definately uses less CPU than the DivX or XviD MPEG-4 codecs [the later 2 send the PC to 100%]

Now I suspect that there is extra overhead in converting analogue to MPEG-4 as opposed to recording a DVB-T H.264 signal but until I get my DVB-T adapter I cannot confirm but I note that Haupaggue and Avermedia state a minimum of a Pentium 2.4 for recording DVB-T BUT as MPEG2. I'm not sure if the CPU for recording DVB-T as MPEG4 [H.264] will be more than with MPEG2 since the signal is already digital and unlike Anlogue does not require intensive CPU to covert to Digital and then compress.

4662 posts

Uber Geek
+1 received by user: 71


  Reply # 142065 1-Jul-2008 22:43
Send private message

argo: Thinking a little laterally, I wonder what CPU you could get away with in a GBPVR Server/Popcornhour configuration?

The Popcorn would be doing all the decoding (I'm assuming the the data is streamed in its "raw" state), so very little processing would fall back onto the Server.

Just a thought Laughing

That is exactly what I have done. I installed a HVR-900H USB2 DVB-T tuner on my PVR which is a Sempron 64 3000. It happily recorded a HD show from TV3 while I was watching another show off the same drive on my Popcorn Hour (shared over SMB).

When the recording was completed I tried to view on the PVR. No way - picture was jerky, pixellated and just unwatchable. OTOH played fine on the PCH with DD 5.1 audio. I suspect if I installed an video card with hardware acceleration (I do have a Sapphire 2600XT waiting to be installed) it would playback on the PVR but there is urgency now given I can play the recordings back fine on the PCH.

System One: Popcorn Hour A200,  PS3 SuperSlim, NPVR running on Gigabyte Brix, Sony BDP-S390 BD player, Logitech Revue, Pioneer AVR, Panasonic 60" 3D plasma

System Two: Popcorn Hour A200 ,  Oppo BDP-80 BluRay Player with hardware mode to be region free, Vivitek HD1080P 1080P DLP projector with 100" screen. Harman Kardon HK AVR 254 7.1 receiver, Toshiba HD-A2 HD-DVD player, Samsung 4K player


My Google+ page 



1 | 2 
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

How Oppo shakes New Zealand’s phone market
Posted 22-Aug-2017 18:32

Recognition for top small business advisors
Posted 22-Aug-2017 17:23

OPPO R11 dual 20MP camera phone debuts in New Zealand
Posted 22-Aug-2017 15:45

Intel introduces new 8th Generation processors
Posted 21-Aug-2017 19:02

Trend Micro launches Home Network Security
Posted 21-Aug-2017 18:38

Avondale College students at top of Microsoft Office Specialist World Championship
Posted 21-Aug-2017 14:11

Garmin introduces inReach SE+ and inReach Explorer+
Posted 21-Aug-2017 14:05

Public Wi-Fi plus cloud file sharing
Posted 18-Aug-2017 11:20

D-Link NZ launches professional Wireless AC Wave 2 Access Point for businesses
Posted 17-Aug-2017 19:25

Garmin introduces the Rino 700 five-watt two-way handheld radio
Posted 17-Aug-2017 19:04

Garmin announces the Foretrex 601 and Foretrex 701 Ballistic Edition for outdoor and tactical use
Posted 17-Aug-2017 19:02

Brightstar announces new distribution partnership with Samsung Knox platform in Australia
Posted 17-Aug-2017 17:07

Free gig-enabled WiFi network extends across Dunedin
Posted 17-Aug-2017 17:04

Samsung expands with connect Gear S3 Frontier
Posted 17-Aug-2017 15:55

Fact-checking Southern Cross Next cable is fastest to USA
Posted 17-Aug-2017 13:57

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.