[FFmpeg-user] Do I really need libaom?

[Moritz Barsnick]

On Tue, Feb 23, 2021 at 10:59:07 +0300, Alexander Dyagilev wrote:
> But do I really need to encode?

That depends on what you want to achieve. If you use the copy codec
("-c copy"), you get a much faster creation of the target file, but
with unchanged codecs. You write:

> to convert arbitrary video files to MP4

MP4 is just a container format. If the consumers of your files can
decode AV1, then fine.

You would need to re-encode if the source file contains codecs not
supported by MP4.

Cheers,
Moritz