ffmpeg.load(); takes huge amount of memory

[actuallyfrank]

Describe the bug
After calling ffmpeg.load() it will download https://unpkg.com/@ffmpeg/core@v0.7.1/ffmpeg-core.js which is suppose to be ~25mb. It looks like it is loading this file in the memory multiple times, this results in an out of memory error when transcoding file sizes.

To Reproduce
Steps to reproduce the behavior:

1. Go to https://codepen.io/jeromewu/pen/NWWaMeY
2. Click on 'choose file' and upload a video.
3. Open the memory tab in google chrome
4. See the amount of memory that gets loaded after ffmpeg-core.js is downloaded

Expected behavior
I would expect it to only load ffmpeg-core.js once which results in ~25mb memory usage.

Screenshots

Desktop (please complete the following information):

• Windows
• Browser Chrome
• Version 84.0.4147.105 (Official Build) (64-bit)

Additional context
Add any other context about the problem here.

[jeromewu]

WebAssembly by default takes lots of memory, so it is quiet normal to see the behavior like you said. I haven't found any way to cut down the memory size.