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View Full Version : Open large Quicktime files in Avisynth


speedyrazor
9th February 2015, 22:01
Hi, I am trying to find the best way of opening large Quicktime Prores files, HD features, of about 150 GB in size. Her is what I has so far found:

FFmpegSource. This works well, but needs to index the file first, and on a 150 GB file takes 10-20 mins! So this is just too slow.

QTInput: This also works well, but I keep reading about various bugs, memory leaks when using audio, audio cuts out after about 45 mins, etc.

So my question is what else is there out there for opening large Quicktime Prores files with Avisynth, what what are the pros and cons?

Kind regards.

Groucho2004
9th February 2015, 22:42
There was someone with the same problem a while ago. You can read about it from post #146 onwards in this thread (http://forum.doom9.org/showthread.php?p=1630961#post1630961).
The conclusion was that QTInput and ffms2 are pretty much the only options and that it's just slow decoding these files with Avisynth.

sneaker_ger
9th February 2015, 22:43
L-Smash source? It does not need to re-index mp4/mov.