Posts Tagged: dxva

0codecsComplete codec setup guide for Windows 78

Win­dows 8 is fin­ished and will soon be avail­able for retail sale. With that in mind it seemed a good time to write an updated guide to get­ting codecs set up for a fully oper­a­tion­al HTPC for both Win­dows 7 and 8. For this guide I’m using a new fea­ture of HTML5 which cre­ates expand­able instruc­tions. At the time of writ­ing this is only sup­por­ted by chrome and safari 6 but hope­fully oth­er browsers will add sup­port in the near future.

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0Media Player Classic - Home Cinema LogoDecoding Interlaced VC‑1 with DXVA

A couple of days ago ver­sion 1.6 of Media Play­er Clas­sic — Home Cinema was released.  Although I don’t use MPC-HC, I do keep an eye on the releases as it can be a use­ful back-up when a file wont play.  It’s been quite a long time since the last offi­cial release so I had a quick scan of the changelog and one thing imme­di­ately leaped at me: “VC‑1 DXVA Decoder now decodes VC‑1 inter­laced mater­i­al”.  Until now there has been no open source x64 codec that will decode inter­laced VC‑1.  Finally hav­ing this avail­able com­pletes cov­er­age for all the media files I have ever tried to play.  Hope­fully this will also get added to ffd­show try­outs and LAV Video in the near future.

2FFmpeg LogoFFDShow DXVA H.264 corruption resolved

I have recently been suf­fer­ing cor­rup­tion play­ing back some H.264 files with FFD­Show try­outs.  After a bit of exper­i­ment­ing I’ve found that the last build without this issue is build 3949 from 24th-July.  I pre­vi­ously had issues with earli­er releases of FFD­Show that didn\‘t work with DXVA at all — for­tu­nately build 3949 does­n’t suf­fer this issue.  I also pre­vi­ously had a prob­lem where some builds of FFD­Show were less effi­cient on my HTPC and were unable to smoothly decode some high bitrate movies, e.g. a rip of the Inglori­ous Bas­terds Blu-Ray, which has forced me to con­tin­ue to use an old build from mid-2010 until now.  Build 3949 does­n’t suf­fer from these issues either — so in terms of the 3 prob­lems I’ve had over the years with ffd­show, build 3949 does­n’t suf­fer from any of them, mak­ing it my build of choice for the fore­see­able future.

1Closed Captions Subtitles LogoSubtitles and DXVA in Windows Media Center 7 x64

Thanks to a guide on theHTPC.net I have been able to get sub­titles work­ing with hard­ware accel­er­ated decod­ing in Win­dows Media Cen­ter 7 x64.

For this sim­pli­fied guide to work you must already be com­fort­able with the vari­ous tweaks neces­sary to change the default codecs used in Media Cen­ter. Once you know how to tweak codecs (and change their mer­its) you can simply fol­low these steps…
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