OK thanks.

Many of our users are college undergrads, some of which appear to have never 
installed an application on their own computer. Now I have to get them to do a 
second installation as well.

By any chance, can I get my LC application to initiate the LAV filters install?



> On Jul 7, 2024, at 8:10 PM, Paul Dupuis via use-livecode 
> <use-livecode@lists.runrev.com> wrote:
> 
> Windows 11 will have the issue. Livecode on Windows 10 or 11 uses DirectShow. 
> Try the LAV Filters to get the formats you want. .mp4 is fine, I am not sure 
> about .mp5 support. See the LAV Filters read me and documentation.
> 
> 
> On 7/7/2024 7:56 PM, Peter Bogdanoff via use-livecode wrote:
>> Thanks, Paul.
>> 
>> So, Windows 11 shouldn’t have this issue?
>> 
>> 
>> 
>>> On Jul 7, 2024, at 1:58 PM, Paul Dupuis via use-livecode 
>>> <use-livecode@lists.runrev.com> wrote:
>>> 
>>> Livecode on Windows (9.x.x and 10.x.x) still uses DirectShow for the video 
>>> (vs the Microsoft Media Foundation (MMF), the current standard. DirectShow 
>>> was always limited in the number of codec for various audio and video 
>>> formats it supported natively. I stringly recommend for macOS Windows 
>>> parity on video formats to install the free library of additional 
>>> DirectShow supported codec that are a part of the LAV Filters package. See 
>>> https://github.com/Nevcairiel/LAVFilters/releases
>>> 
>>> Just install the current version of LAV Filters and restart and you get a 
>>> whole set of additional audio and video formats supported for Livecode for 
>>> Windows.
>>> 
>>> 
>>>  On 7/7/2024 1:38 PM, Peter Bogdanoff via use-livecode wrote:
>>>> Hi, the browser widget doesn’t support .mp4 (or .mp5, both part of the 
>>>> HTML5 standard) in Windows.
>>>> 
>>>> This is disappointing, especially as LC 10 becomes web based. In the music 
>>>> application I’ve been developing, we are now going into new, 
>>>> transformational frontiers in education with web-based video (such as 
>>>> YouTube) interacting with normal Livecode—but this works on macOS ONLY. I 
>>>> tested YouTube videos in the widget on Windows 10, and the YT player 
>>>> reports that the videos are unsupported.
>>>> 
>>>> I understand that there is licensing involved. MPEG LA, now VIA Licensing 
>>>> Alliance, has a fee structure. For hardware decoders, for example:
>>>> 
>>>> For the first 1 to 50,000 decoders No Royalty*
>>>> For decoders 50,001 and more       $ 0.25**
>>>> 
>>>> https://www.via-la.com/licensing-2/mpeg-4-visual/mpeg-4-visual-license-fees/
>>>>  
>>>> <https://www.via-la.com/licensing-2/mpeg-4-visual/mpeg-4-visual-license-fees/>
>>>> 
>>>> Is this an obstacle for LiveCode as software, and dependent on the 
>>>> underlying hardware?
>>>> 
>>>> My understanding from past LC forum posts is, to allow the widget to play 
>>>> the videos a flag is turned on and the widget recompiled.
>>>> 
>>>> I’m happy to pay for the licensing myself if I got to 50K customers!
>>>> 
>>>> Peter Bogdanoff
>>>> 
>>>> 
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