.mp4 support in browser widget--Windows

Paul Dupuis paul at researchware.com
Mon Jul 8 07:47:23 EDT 2024


There ARE methods to compress and store a 3rd party library or 
application as a property in a Livecode standalone and have the 
standalone on start up check (if there is a file ... or if there is a 
folder ...) for the app's presence and if not present, install it by 
uncompressing and writing it as a bnfile to the install location.

I don't know whether there are any Livecode lessons on the web site on 
how to do this or not or whether someone else who has done this may have 
code or tips to share.

First, you may want to manually install LAV Filters and see if it has 
the codecs for the media formats you want.

Livecode 10, before release, is supposed to get updated to use the 
Windows Media Foundation (and it's wide range of current codec for 
various media formats). This change (DirectShow to MMF) is not in the 
current (dp8) version. So a media coded pack (like LAV Filters) for 
DirectShow is your only option under there is a version of LC 10 that 
supports MMF.

If you set the way back machine, if you wanted to do media on Windows 
under old versions of Livecode (aka Revolution), you had to install 
Quicktime for Windows.


On 7/7/2024 8:49 PM, Peter Bogdanoff via use-livecode wrote:
> 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 at 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 at 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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