July 11th, 2012, 09:01 AM
Question for Developers about AC3 Audio
I was wondering if it would be possible for Videoredo to call up a external program such as ffmpeg to do AC3 encoding.
What I had in mind was that the external progarm would not be supplied by Videoredo but must be the responsibility of the user to install on their system.
I was looking for a way around the licensing requirement for Videoredo to be able to use AC3 audio.
July 11th, 2012, 11:24 AM
This is something very old and not supported but FYI.
Good luck hunting for the plug-in (if it works.)
July 11th, 2012, 01:52 PM
If we include AC3 encoding at all we have to pay for the license no matter if the encoder itself is free or not. There is no way around it.
Pat's suggestion to use the winamp plugin probably wont work as that part of the product has not been maintained and likely wont work with the new recoding engine in TVSuite v4. And even if it does work the audio will be downmixed to 2ch because all decoding in VideoReDo is downmixed to 2ch right now. So if your purpose is to convert from 5.1 AAC to 5.1 AC3 it wont work.
That being said we are still considering adding AC3 encoding to a future version of VRD, so you may eventually get the ability to do what you want.
July 21st, 2012, 08:51 AM
Separate the video and audio into separate streams. Run whatever program you want on the audio stream, then use VRD to remux the video and new audio into a new file.
Compare the audio between the two files and adjust for any slippage of the new file as compared to the original.