From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.perfora.net ([74.208.4.194]:58802 "EHLO mout.perfora.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753388Ab0BWVSA (ORCPT ); Tue, 23 Feb 2010 16:18:00 -0500 Message-ID: <4B8445F2.40008@linuxstation.net> Date: Tue, 23 Feb 2010 13:17:38 -0800 From: Dean MIME-Version: 1.0 To: Devin Heitmueller CC: Dean , j , Hans Verkuil , "linux-media@vger.kernel.org" , "video4linux-list@redhat.com" , Mauro Carvalho Chehab Subject: Re: eb1a:2860 eMPIA em28xx device to usb1 ??? usb hub problem? References: <20091007101142.3b83dbf2@glory.loctelecom.ru> <200912160849.17005.hverkuil@xs4all.nl> <20100112172209.464e88cd@glory.loctelecom.ru> <201001130838.23949.hverkuil@xs4all.nl> <20100127143637.26465503@glory.loctelecom.ru> <4B83076A.3010409@ctecworld.com> <829197381002221452k793be9d2l8f7ec3638233ecd0@mail.gmail.com> <4B837790.6060007@linuxstation.net> <829197381002230846m4ad70c46o2ec9b9935d9b8bc3@mail.gmail.com> In-Reply-To: <829197381002230846m4ad70c46o2ec9b9935d9b8bc3@mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Devin Heitmueller wrote: > On Tue, Feb 23, 2010 at 1:37 AM, Dean wrote: >> Hi, >> >> I have the KWorld DVB-T 305U, an em28xx device. Only the video works for me under Linux, no audio. In case anyone wants to see it, I have attached the full dmesg text, solely from this device. >> >> Cheers, >> Dean > > Hi Dean, > > How are you testing the audio, and under what video standard are you > trying to use the device (NTSC/PAL/SECAM)? > > Devin > Devin I am receiving NTSC TV signals. I test with mplayer. Example; mplayer tv://9 -tv driver=v4l2:alsa:immediatemode=0:adevice=hw.Em28xxAudio,0:norm=ntsc:chanlist=us-cable -vf pp=ci The above command works fine (both audio and video) with my Hauppauge HVR-850, but for the Kworld 305U I must change 'immediatemode=0' to 'immediatemode=1' otherwise the video frame rate is about 1/2 normal speed and about 1 minute later mplayer starts printing 'video buffer full - dropping frame'. According to dmesg the Kworld 305U loads the same firmware as my Hauppauge HVR-850, and (during separate test sessions) installs the same ALSA device; card 1: Em28xxAudio [Em28xx Audio], device 0: Em28xx Audio [Empia 28xx Capture] Subdevices: 0/1 Subdevice #0: subdevice #0 Dean