Dear IOhannes, thanks for your answers.

I am on Win8 and Pd-extended.- So, if I start my patch the firt
rendering option is directshow and the second quicktime.

I tried out the messages: [open $1 RGBA DirectShow( and [open $1 * DirectShow(

The videos are playing, but with every video on my playlist I get
thies error "Unable to add SampleFilter 262701".

Hm, with this messages - I have no errors use:

[open $1 1( or [open $1(

best, fränk

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Message: 4 Date: Wed, 01 Jul 2015 21:58:39 +0200 From: IOhannes m zmölnig zmoelnig@iem.at To: pd-list@lists.iem.at Subject: Re: [PD] How to force gem pix_film to use DirectShow Message-ID: 5594466F.6080201@iem.at Content-Type: text/plain; charset="utf-8"

On 07/01/2015 09:41 PM, fz@mur.at wrote:

...

Hi, I found a lot of info by searching but I want to be sure.- Do I force gem pix_film to use DirectShow with a message "open $1 1" ?

this will ask [pix_film] to use the 2nd available backend as first choice. whether this is DirectShow or SchmozzelMozz depends on your installation.

a more consistent way is to use symbolic names, as in: [open $1 RGBA DirectShow( (the second argument "RGBA" is the colorspace you request; if you don't care about a specific colorspace, you could also use "*" instead and ignore the error message...)

but all these messages, only tell Gem to try the given backend as first choice, and - if that backend fails to open the file - will try the others as well. so it's not really *forcing* a specific backend.

the only way to force the use of DirectShow is to remove all the other backends from the filesystem (prior to loading Gem), so that Pd/Gem cannot find and thus cannot use them: in the same directory as Gem.dll, you should find a couple of gem_film*.dll files. if you remove all of them but gem_filmDS.dll, you can make sure that a film is only ever opened with DirectShow (or not at all). if you remove all gem_film*.dll files, you can make sure that no film can be opened.

gfamdsr IOhannes