[Libav-user] Would anyone find an OS X / Cocoa / Swift wrapper for Libav useful?
shekh.anton at gmail.com
Sun Jan 25 14:13:51 CET 2015
2015-01-25 14:53 GMT+02:00 Thomas Worth <dev at rarevision.com>:
> There's also been a lot of complaints about the seek API. I'll say this:
> frame-accurate seeking is absolutely possible with ffmpeg, even with GOP
> formats. However, there's a lot of additional work you need to do for this
> to be practical, and I'm not sure there's a "one size fits all" solution to
> this. So, if you feel like spending a few days figuring this out, it's
> doable. It just depends on how committed you are.
A while ago I started to make and input driver for VirtualDub. I can go
deep on this subject. The problem is indexing API: it is not present. Event
with best container (mp4 fully indexed) there is no straight API to get
frame number by packet or seek to frame number or which frames I can seek
to etc. What I actually learned: index_entries often contains valid
information for such purpose. BUT it is not exposed as public API and no
guarantees are made.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Libav-user