AW: Trouble playing videos with MS DirectShow LC 8

Tiemo Hollmann TB toolbook at
Tue Mar 7 11:46:21 EST 2017

Hi Tim,

hmm, I didn't knew, that this codec is a hardware based codec. Do you think it definitely is tied to special intel hardware and won't run on every hardware and can't be added by a software codec? Btw. It runs also fine on my iMac.

That would be really bad for me, because it was the only codec my Sorenson squeeze offered me for H.264, where I can step frame by frame thru the video, what is a must for my app.


-----Ursprüngliche Nachricht-----
Von: use-livecode [mailto:use-livecode-bounces at] Im Auftrag von Bleiler, Timothy via use-livecode
Gesendet: Dienstag, 7. März 2017 16:55
An: How to use LiveCode <use-livecode at>
Cc: Bleiler, Timothy <bleiler at>
Betreff: Re: Trouble playing videos with MS DirectShow LC 8

I’m certainly no expert on video encoding but since you used the Intel QSV H.264 encoder I’m wondering if the Livecode implementation of DirectShow does not support that hardware based encoder. You might have better luck and broader compatibilty using something like the default encoder in Handbrake.

Tim Bleiler

On Mar 7, 2017, at 10:28 AM, Tiemo Hollmann TB via use-livecode <use-livecode at<mailto:use-livecode at>> wrote:

Making some further tests, I discovered that there must be a relation to mp4 video files.
I tested the same standalone with an old avi file and that worked, but not with some different mp4 files But it can't be something in general, because the mp4 file can be played fine with the same standalone on my W10 machine.
So I am still searching for an idea, what could be different on my machine to "all" others.


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