Video format for mobile

Tom Glod tom at
Thu Apr 9 14:07:40 EDT 2020

There is cisco's openh264 codec which they open sourced.  So that is a
potential solution that would have to include the livecode team.

On Thu, Apr 9, 2020 at 2:04 PM J. Landman Gay via use-livecode <
use-livecode at> wrote:

> On 4/9/20 9:53 AM, Bryan Anderson via use-livecode wrote:
> > The .mp4 file spec allows for 3 different audio formats. AAC,
> MPEG1-Layer1 and MPEG1-Layer2. AAC is by far the most often used audio
> codec.
> >
> > I just made a quick video using each audio codec, and the only one that
> plays audio in LC is the AAC version (MacOS, LC 9.5.0). To make sure you’re
> video is the right format, download the sample stack in the bug report at
> <
>>. I know that video
> works, at least on Mac.
> >
> > On MacOS. Quicktime is the default player on the Mac still today, but
> it’s not the same QuickTime from years ago that LC depended on. If “About
> QuickTime Player” shows version 10.5, you’re on the new one. QuickTime
> Player 7 uses the deprecated APIs.
> I have QT 10.5 and it plays the video. Firefox does too. On Android,
> Chrome plays it. So it
> looks like LC mobile player could be the problem.
> I downloaded the file from your bug report, set a LC player to the
> filepath on my Mac, and got
> the same empty black screen.
> --
> Jacqueline Landman Gay         |     jacque at
> HyperActive Software           |
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Tom Glod
Founder & Developer
MakeShyft R.D.A (

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