From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from moutng.kundenserver.de ([212.227.17.8]:54645 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751948AbZIJJBm (ORCPT ); Thu, 10 Sep 2009 05:01:42 -0400 Message-ID: <4AA8C07C.9030804@nildram.co.uk> Date: Thu, 10 Sep 2009 10:01:48 +0100 From: Lou Otway Reply-To: lotway@nildram.co.uk MIME-Version: 1.0 To: Eduard Huguet CC: linux-media@vger.kernel.org Subject: Re: Nova-T 500 Dual DVB-T and h.264 References: <4AA7AE23.2040601@nildram.co.uk> <4AA8B235.3050407@nildram.co.uk> <617be8890909100110jaaedf51h637d114d30382b99@mail.gmail.com> In-Reply-To: <617be8890909100110jaaedf51h637d114d30382b99@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Eduard Huguet wrote: > 2009/9/10 Lou Otway : >> Eduard Huguet wrote: >>> Lou Otway nildram.co.uk> writes: >>> >>>> Hi, >>>> >>>> Does anyone have experience of using the Hauppuage Nova-T 500 with DVB-T >>>> broadcasts with h.264 and AAC audio? >>>> >>>> DTT in New Zealand uses these formats and I'm seeing poor performance >>>> from the Nova-T card. My thinking is that it was probably not conceived for >>>> dealing with dual h264 streams. >>>> >>>> Has the PCIe HVR-2200 been tested with dual h.264? I was wondering if >>>> this card might have better performance. >>>> >>>> Thanks, >>>> >>>> Lou >>> >>> Hi, AFAIK the card just tunes to the desired frequency, applies >>> configured >>> filters (to select the desired station through its PID number), and >>> handles the >>> received transport stream to the calling application. It's up to the >>> lastest to >>> properly decode it. Check that the software you are using is properly >>> capable of >>> decoding this kind of content. >>> >>> Best regards, Eduard Huguet >> >> Hi, >> >> the problem isn't to do with playback as I have another type of adapter card >> that creates a TS, from the same mux, that is played back with no problem. >> >> It seems that the problem only happens when using the Nova-T card. >> >> DTT in NZ has services with 1080i video format, I'm not sure that there are >> many other places in the world where 1080i h.264 content is broadcast using >> DVB-T, hence I was thinking that this combination may not have been well >> tested. >> >> Thanks, >> >> Lou >> > > I don't know how this it works in NZ. Here in Spain there is at least > one station (TVC's 3HD) emitting HD content through TDT, and it works > flawlessly with a Nova-T 500 (as I have one). I'm not sure if contents > are 1080 or 720, though. > > There were some problems watching these channels through MythTV, but > they were definitely decoding related. With current MythTV trunk they > are fine. > > Anyway, as I said before, theoretically a DVB card doesn't know what > kind of streams contains the signal it tunes. Decoding & parsing is > handled by the app. > > Best regards, > Eduard Huguet > -- I'm not using MythTV or any other type of Media playing application. In any case, I see very different performance between the two different types of card, when presented with the same input. I'll gather some more data, if I can draw any new conclusions I'll update the list. Best, Lou