Just a daft question that's been bugging me...

MKV playback, recompression, remuxing, codec packs, players, howtos, etc.
Post Reply
ndjamena
Posts: 830
Joined: Mon Jan 07, 2013 12:23 am

Just a daft question that's been bugging me...

Post by ndjamena » Wed Oct 29, 2014 2:05 pm

Apparently FLAC has variable frame sizes, I was reading that the proposed AC-4 has variable frames sizes that could be altered to match the video frame rate to allow for neater cutting... Is FLAC not capable of modifying it's frame sizes to match that of the video?

mike admin
Posts: 4075
Joined: Wed Nov 26, 2008 2:26 am
Contact:

Re: Just a daft question that's been bugging me...

Post by mike admin » Wed Oct 29, 2014 7:08 pm

No, FLAC frame size is encoded in header and is fixed for entire track. There is even no option to encode a short frame.

ndjamena
Posts: 830
Joined: Mon Jan 07, 2013 12:23 am

Re: Just a daft question that's been bugging me...

Post by ndjamena » Thu Oct 30, 2014 9:02 am

I meant variable as in each file can have a unique frame length, not like AC3s 32ms or AACs 1024(2048) samples. But I guess even if I could tell an encoder to use an audio frame length that divided evenly into the video frame length it would only ever be useful for PAL sources. I guess I'll stick with PCM for slice and dicing then.

Post Reply