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ffmpeg command to convert prores to hevc mp4 with alpha layer that works in safari

Hi, i am struggling with ffmpeg making a video with transparency.

I have output a prores 4444 with alpha .mov and have successfully created a .webm file with transparency that works great on chrome and firefox etc but doesn't work on safari or edge.

I would like to have a reliable ffmpeg command that will convert a prores 4444 with [login to view URL] into an hevc .mp4 or equivalent that will work on safari, iPhones and iPads.

I have an example html file which works in chrome but not in safari that i can send if needed

Thanks

Evner: Web Design, Video Services, HTML

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Om arbejdsgiveren:
( 2 bedømmelser ) Brigg, United Kingdom

Projekt ID: #23390920

6 freelancere byder i gennemsnit £128 på dette job

Anthprogrammer

I am 7+ years experienced in HTML5, CSS, PHP, CRM, MVC, MySQL, Javascript, Wordpress, Shopify, joomla, drupal, opencart, jQuery, Ajax. I love to code. One thing I believe in is never quitting. I will work hard and lo Flere

£135 GBP in 7 dage
(77 bedømmelser)
6.4
taniasingh290997

Hello There, I have 4+ years of hands-on experience efficiently coding websites and applications using modern HTML,HTML5, CSS, CSS3, JavaScript, Bootstrap, jQuery, WordPress and WooCommerce. I actively seek out new t Flere

£200 GBP in 3 dage
(32 bedømmelser)
4.9
tamas421

I would like to apply for the task.. However, H264/MP4 does not support transparency, so that we have to find a different way around. My related experiences: primarily working with ffmpeg / avisynth. Awaiting of your Flere

£30 GBP på 1 dag
(40 bedømmelser)
4.5
Ruslan1024

Hello, I have rich experiences in ffmpeg command. I can complete your proeject in a short time. looking forward to your response Thanks

£100 GBP in 3 dage
(4 bedømmelser)
2.8
Valuesolutions

Hello, i have read the details provided..please contact me to discuss more on the project deadline and some other few things

£135 GBP in 7 dage
(5 bedømmelser)
4.3
reach2rajarajan

Hi i can convert what you need without any errors in ffmpeg windows command line we do our work as per customers enquires we need to check the files details

£166 GBP in 3 dage
(0 bedømmelser)
0.0