Well, technically, are they the same because from my understanding, the containers are different even though both can contain the same audio and video streams?
Perhaps a better question would be, should I have to re-encode my videos that were previously encoded to H.264 in an MP4 container to a file in a F4V container? That brings the question if I don't have to re-encode those files, why move to F4V if my current workflow is working for me?
One question I did have about protecting streams, when one protects a stream using FMS, does FMS place the file inside a protected wrapper (F4P) or does it protect the file on the fly? Last, is there any tool that Adobe has that can rewrap previously encoded MP4 files into the F4V format so metadata can travel with the file without the need to rely on a xmp sidecar file?
I really appreicate your help in these questions.
Well, F4V is just a file extension that means it's an implementation of the MP4 spec that Adobe promises to understand. I don't have a link to the ISO-spec right now, but essentially internally Adobe wanted a file extension that all products could create and not get stuck with a menu list of 3gp, mov, mp4, m4v, ... extensions that are supported and not. That's why I say that they're the same file format.
The only difference comes in that recorded F4Vs by FMS use MP4 fragments - the majority of mp4s out there don't, and that's because they don't have to do scalable recording on the fly. So, you don't have to move unless you gain something from it. FMS will write F4V files with fragments, and you can flatten them in post processing. I'd say to go with whatever workflow works best for you - and not presume to move you anywhere unless feature set is appealing enough.
As for protected content, I'll assume we're speaking of DRM packaging. In that case I'm a little out of my element but they certainly do protect the file on disk and FMS is more of a pass through of their DRM content. If we're speaking of FMS mechanisms like RTMPE or SWF Verification then we do nothing to the file and it's all 'on the wire' protections.
Hope that helps,
Hi, I am just getting into the field of encoding for web.
I have a 10 minute episode of a web-series which I'd like to encode as to achieve the best quality with the smallest size.
I do want to have a DRM otion too.
Which of the encodings will you recommend. F4V or MP4? or any other one that you may think will suit me best?
Thank you very much