Hi Jaques,

> Am 09.04.2020 um 20:03 schrieb J. Landman Gay via use-livecode 
> <use-livecode@lists.runrev.com>:
> 
> 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 
>> https://quality.livecode.com/show_bug.cgi?id=21278 
>> <https://quality.livecode.com/show_bug.cgi?id=21278>. 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.

I did the same and the video played fine in a player object, same in a browser 
widget!
macOS 10.14.6, LC 9.5.1

The codec of that video is AVC (Advanced Video Codec), which is not very common.

> -- 
> Jacqueline Landman Gay         |     jac...@hyperactivesw.com
> HyperActive Software           |     http://www.hyperactivesw.com

Best

Klaus

--
Klaus Major
https://www.major-k.de
kl...@major-k.de


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