From: Malcolm Priestley <tvboxspy@gmail.com>
To: Hans Petter Selasky <hselasky@c2i.net>
Cc: Dennis Sperlich <dsperlich@googlemail.com>,
Mauro Carvalho Chehab <mchehab@redhat.com>,
linux-media@vger.kernel.org,
Michael Krufky <mkrufky@kernellabs.com>,
Devin Heitmueller <dheitmueller@kernellabs.com>
Subject: Re: em28xx_isoc_dvb_max_packetsize for EM2884 (Terratec Cinergy HTC Stick)
Date: Sun, 25 Dec 2011 19:42:47 +0000 [thread overview]
Message-ID: <1324842167.3134.4.camel@tvbox> (raw)
In-Reply-To: <201112251511.54080.hselasky@c2i.net>
On Sun, 2011-12-25 at 15:11 +0100, Hans Petter Selasky wrote:
> On Sunday 25 December 2011 15:04:17 Dennis Sperlich wrote:
> > On 25.12.2011 11:52, Mauro Carvalho Chehab wrote:
> > > On 24-12-2011 19:58, Dennis Sperlich wrote:
> > >> Hi,
> > >>
> > >> I have a Terratec Cinergy HTC Stick an tried the new support for the
> > >> DVB-C part. It works for SD material (at least for free receivable
> > >> stations, I tried afair only QAM64), but did not for HD stations
> > >> (QAM256). I have only access to unencrypted ARD HD, ZDF HD and arte HD
> > >> (via KabelDeutschland). The HD material was just digital artefacts, as
> > >> far as mplayer could decode it. When I did a dumpstream and looked at
> > >> the resulting file size I got something about 1MB/s which seems a
> > >> little too low, because SD was already about 870kB/s. After looking
> > >> around I found a solution in increasing the isoc_dvb_max_packetsize
> > >> from 752 to 940 (multiple of 188). Then an HD stream was about 1.4MB/s
> > >> and looked good. I'm not sure, whether this is the correct fix, but it
> > >> works for me.
> > >>
Would not increasing EM28XX_DVB_NUM_BUFS currently set at 5 to say 10
have a better effect?
Malcolm
next prev parent reply other threads:[~2011-12-25 19:43 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-24 21:58 em28xx_isoc_dvb_max_packetsize for EM2884 (Terratec Cinergy HTC Stick) Dennis Sperlich
2011-12-25 10:52 ` Mauro Carvalho Chehab
2011-12-25 14:04 ` Dennis Sperlich
2011-12-25 14:11 ` Hans Petter Selasky
2011-12-25 14:47 ` Devin Heitmueller
2011-12-25 17:58 ` Mauro Carvalho Chehab
2011-12-25 19:42 ` Malcolm Priestley [this message]
2011-12-25 20:12 ` Dennis Sperlich
2011-12-25 18:13 ` Mauro Carvalho Chehab
2011-12-25 20:33 ` Dennis Sperlich
2011-12-26 5:55 ` Holger Nelson
2011-12-26 12:18 ` Mauro Carvalho Chehab
2011-12-28 3:50 ` Holger Nelson
2011-12-28 12:09 ` Mauro Carvalho Chehab
2011-12-28 22:55 ` [PATCH] em28xx: Reworked probe code to get rid of some hacks (was: Re: em28xx_isoc_dvb_max_packetsize for EM2884 (Terratec Cinergy HTC Stick)) Holger Nelson
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