CoreAVC 1.8.5 on Ubuntu 8.10 x86_64 (Intrepid Ibex) HOWTO

This is small HOWTO about running the CoreAVC decoder (dshowserver) on a 64Bit Unbuntu 8.10 (Intrepid Ibex)
This should work for other 64bit Linux-Distros, like Debian, Fedora, SuSE, Gentoo, etc… also. With the CoreAVC decoder for Linux you should be able to play back H.264 content in FullHD (1920x1080p, VC1 is not supported). In comparison to the the native mplayer H.264 playback, only CoreAVC is able to utilize all cores of your CPU simultaneously at the moment. Please consider, NVIDIA has published a Beta driver (180.06, 180.08, 180.11), which allows already now a rudimentary hardware acceleration support for HD content (including VC1). Feedback welcome. Continue reading “CoreAVC 1.8.5 on Ubuntu 8.10 x86_64 (Intrepid Ibex) HOWTO”

The Linux AVCHD (.mts) Playback HOWTO with MPlayer

Alan fixed the Segmentation Fault issue for CoreAVC version 1.8.5.0, so Matroska files can be played back again. See this thread at his project site: #62

Unfortunately AVCHD has still issues. So CoreAVC version 1.8.5.0 still doesn’t work regarding playback of AVCHD footage from my Canon HF100. I think Panasonic HDC-SD1/5/9/100 is also affected.
If you have a at least 2.7GHz processor, you can use the latest mplayer from their repository. Continue reading “The Linux AVCHD (.mts) Playback HOWTO with MPlayer”

List of affected AVCHD CamCorders

This is a list of AVCHD Camcorders, which do not work with CoreAVC decoder version > 1.7.0.

Like in older versions, such as 1.7.0 and 1.8.0, CoreAVC version 1.8.5 has still problems playing back AVCHD. The affected camcorder models I know of are:

  • Canon HF10
  • Canon HF100
  • Panasonic HDC-SD1
  • Panasonic HDC-SD5
  • Panasonic HDC-SD9
  • Panasonic HDC-SD100


The playback still jitter a lot if used without a deinterlacer, and I’ve got only about 10 frames a second (estimated). Seeking within the footage works now (was broken in version 1.8.0), wheres regarding the existing problems it’s a really cold comfort.
A workaround, for playing back AVCHD footage is described here at several places. Just use latest mplayer and a decent CPU.
If anybody likes to extend the list of affected camcorder models, please post them here, I’ll update the list above and will keep tracking this issue.
I’m using CoreAVC-for-Linux. If you are using Windows, please post this information as well as the version of CoreAVC you are using. Thanks.

[UPDATE] I’ve posted a question at CoreCodec’s forum, where I ask, whether AVCHD content supposed to work at all. I’m not very confident in the meantime, but let’s try it anyway.

CoreCodec Forum not available anymore

For unknown reasons, the corecodec forum isn’t available anymore.
The site, which is coming up, has nothing to do with the forum itself: http://forum.corecodec.com

Unfortunately this is the only source for tracking my issues with the latest CoreAVC 1.8.5 decoder on Linux.

As soon as this site will be available again, I will update this section. The forum itself is down since 20th of October 2008. If there was an accouncement regarding this shutdown, then I didn’t see it.

[UPDATE] The forum is available again. It came back to live at 21th of October, 2008 at about 10AM MEST. The reason for the break down is still unknown. There is no explanation at their site yet.

[solved] Problems with CoreAVC 1.8.5 on Linux

[UPDATE] Alan fixed the Segmentation Fault issue for CoreAVC version 1.8.5.0, so Matroska files can be played back again. See this thread at his project site: #62. Thanks a lot Alan!
Playback of AVCHD still doesn’t work. Read this workaround for playing back AVCHD footage without CoreAVC.

On 17th of October CoreCodec released their decoder CoreAVC version 1.8.5.0.
It’s not working for Linux at the moment. This is what happens if one one uses the dshowserver to test the functionality (like described here) of the new CoreAVCDecoder.ax library in /usr/lib/win32: Continue reading “[solved] Problems with CoreAVC 1.8.5 on Linux”

Tearing with nVidia drivers and mplayer with "-vo xv"

Well, let’s start with the conclusion: setting XV_SYNC_TO_VBLANK has no effect, if a second monitor is attached.

But let’s start at the very beginning: What is tearing? Well, this is how Wikipedia defines it:

Screen tearing is a phenomenon in video where a previously rendered frame overlaps a newly rendered frame, creating a torn look as two parts of an object (such as a wall) don’t line up…

Continue reading “Tearing with nVidia drivers and mplayer with "-vo xv"”

Adobe Flash Player 10 and Hardware Acceleration for Linux

A buzz word is going around: hardware acceleration regarding Linux and GPU usage

Adobe has announced the finale release of its Flash Player. The Version 10.
It’s been said, it’s capable of using hardware acceleration under Linux, and that may be the truth actually. But – we are not talking about H.264 acceleration and we are talking about more limitation than only that: Read the blog of Kaourantin for more details. Or a more brief story here.
The statement, Linux won’t have hardware acceleraton for H.264 content in near future is as real as before.
But now I know at least why my fullscreen flash playback gave me 5 frames/sec. It’s because I’m using compiz. This is a no-go combination.

Stuttgart by Bicycle

Navigating with GPS and a bike in the Stuttgart area? No problem anymore: VVS Fahrradroutenplaner
I’m just impressed! I’ve been using this many times now. And in combination with Google Earth, it’s perfect tool to get everywhere in my area.
Just a little tip: In Google Earth you can let mountain look 3 times higher, than they really are. That way it’s much clearer to see, if one track is easy, normal, difficult, or almost impossible to do by bike.
You can set it up under: Continue reading “Stuttgart by Bicycle”

Open Street Map for Cyclers

I’m looking periodically into this site: OpenCycleMap . I’m just interested, whether there’s a new GPS-track I can use for a trip. I’m also playing with the thought to cache some data to and provide it, too.
The map shows Great Britain, because the project stated there. The Netherlands offers also a lot of tracks already. Germany, Swiss, Sweden, Poland and a few other countries have also a few tracks to offer.
Also the east cost of the United States has a few tracks. And it’s getting more every single day.

Issues with CoreAVC

I’m trying to run CoreAVC on Linux. The version I’m using is CoreAVC 1.8.0.
But it doesn’t work for footage from Canon’s HF100 or the Panasonic HDC-SD100. It’s stutter as hell if one let it run in interlaced mode, and if you are going to seek within the content, the playback behaves like a slideshow afterwards. Here’s my post I’ve send: Continue reading “Issues with CoreAVC”