Successes & Failures with AVI conversion for ATV
Hi guys - here is how I do the conversion & (semi) automation - but also some remaining problems (btw: my first post in MR;-)
Conversion:
1. I use the Elgato Turbo.264 Stick (which frees the CPU almost completely) for AVI-to-MP4 conversion, with the Elgato Software that came with the stick.
The software is easy-as-A-B-C, allows a variety of settings (FR, 16:19 & 14:9 etc), batch processing possible etc) and saves the mp4 files in iTunes movie folder which then triggers iTunes to synch automatically with my ATV.
So the only thing that remains is once I have recieved my AVI files in a certain folder to 'throw' them all for batch-processing into the Elgato SW.
(I have not yet tried to use Automator for this).
2. As an alternative, you can also use Quicktime Pro (29.95$) for the conversion AVI to MP4 - without any HW converter it eats up all your CPU for the next few hours; but QTPro can also use the Elgato stick, and then you have the same advantages as under 1.
In addition, you can edit (=cut) the movie to the desired length (e.g. if there is unwanted ads at the beginning or the recording runs longer than the movie). Plus, QTPro can definitely be used with the Automator to automatically read new entries in a folder.
So much for the "good" part - I just throw files into the Elgato SW, and some time later they appear on my ATV.
Problem
The problem that I have with this is the following:
After H.264 encoding, all files have a audio-unsynch-creep: slowly but surely the audio & video streams es-synchronize over the runtime of the movie, and after 20 - 30 minutes you can see clearly that lip movements and audio are out-of-synch.
In the "original" AVI files this is not the case (for background info: the AVI files are DivX encoded, with Xvid Codec; using DVDs with the original AVI files, I had this de-synch sometimes, but stopping & restarting the DVD from usually fixed it.)
I have read all sorts of explanation & solution with muxing / demuxing etc. which I might be able to use - but the charme of the initial "drag-drop-&-ready" solution would be gone, and I don't want to spend 15-2- minutes active handling for every conversted movie I want to watch.
Any ideas?
