Over the years we have assembled a variety of tools for evaluting tuner performance. Most of these are internal home-grown command line utilities and scripts which perform some superset of comparable end-user applications, with a particular emphasis on automation and logging statistics that regular users typically wouldn’t need. We use these tools for a variety… Read More
hauppauge
Posts related to Hauppauge products
MythTV and Hauppauge Colossus
While Kernel Labs has been shipping a driver for the Hauppauge Colossus for a couple of years now, we have generally been focused entirely on the use cases that commercial parties care about, and these tend to be things like gStreamer, ffmpeg, and VLC. However in the last few days I finally got around to… Read More
Kernel Labs Linux driver for Hauppauge HVR-955Q
Over the last six to twelve months, we’ve been working on Linux driver support for a variety of new TV tuner products. The first one out the door though is what we’ll be talking about today. The Hauppauge HVR-955Q is the latest ATSC/ClearQAM/analog tuner they started to ship a few months back as a replacement… Read More
Using VLC Closed Captions with the HVR-950q
I was on a call with someone a few weeks ago, and they mentioned that they had been unable to get NTSC closed captions to display within VLC on the HVR-950q. Thinking that perhaps he was not the only person who had trouble figuring it out, I figured it would be worthwhile to walk you… Read More
HDPVRCapture and Colossus
Most people are unaware of this, but Kernel Labs isn’t just a Linux shop. We actually do a fair bit of work under OSX as well. In fact, Steven Toth created the very popular HDPVRCapture application prior to the founding of Kernel Labs. Aside from the copyright notice, most people are unaware that HDPVRCapture is… Read More
HVR2200 Corrupt Image?
We’ve had a handful of reports cropping up related to HVR2200 model#89619 cards. With Ubuntu 12.04.1 the driver would attempt to load firmware from file NXP7164-2010-03-10.1.fw length 4019072 as defined in the saa7164-fw.c driver source. (Hint: it’s not really an Ubuntu error) Sep 13 07:50:56 dell kernel: [ 83.432854] saa7164_downloadimage() image corrupt Sep 13 07:50:56… Read More
Public Service Announcement
In addition to writing Linux drivers, I’ve done quite a bit of work with hardware in my time, including a variety of tuner products. I realize that those devices in general do run a bit warm, but this is largely just a byproduct of the nature of how tuners work. This ambitious user though felt… Read More
HVR-950q patches submitted upstream!
After a rather large bug hunt, I’ve finally submitted the HVR-950q patches upstream. In the end, we created 24 patches addressing a ton of longstanding bugs: au8522: fix intermittent lockup of analog video decoder au8522: Fix off-by-one in SNR table for QAM256 au8522: properly recover from the au8522 delivering misaligned TS streams au0828: Make the… Read More
Hauppauge Media-MVPHD – A Platform Introduction
Sub $80 embedded Linux Development Box So you want a sub $80 embedded Linux system capable of playing back 1080p60 video, has wired ethernet, SATA controller onboard, USB2 ports, with a full cross compiler toolchain? Perhaps you’ve got an urge to get involved with digital media playback and Linux development? If so, read on. The… Read More
Even more HVR-950q fixes….
Continued debugging has produced another dozen fixes for the HVR-950q. Most of these are low-probability failure conditions (race conditions, etc). However take a bunch of 1/1000 chance items together and you’re likely to hit one of them once in a while… A couple of noteworthy changes: Firmware load time has been sped up to 2.9… Read More