How to record Audio and Video at the same time into flv in Adobe air 2.0 ? So that Video and Audio will be sinchronised?
Open Source libs and Blog aricales are wellcomed!)
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A:
All I can help with are a few links, but I haven't tried this to know how feasible it actually is:
- Audio - Recording record microphone to wav devnet article or devnet cookbook article.
- Audio - Compression - MP3 Compression with Lame and AIR 2.0 or MP3 encoder in Flash with Alchemy
- Video - SimpleFlvWriter.as is a bit outdated and only writes images, not audio, but might be handy to get started. Also have a look at the FLV Specs.
At this point it looks like trouble waiting to happen: Where do you store the images/sound until you write encode them ? in RAM ? If you want to cache uncompressed files, will there be audio delays ?
It might be worth trying something different, like C++. Or at least, write some command line tools for recording/encoding for performance reasons and use AIR/native process just for the looks/interaction ?
HTH, George
George Profenza
2010-06-08 17:00:19
Good for me pert - today I mor or less well understand FLV container format. So I can say that turning SimpleFlvWriter.as (which now can do stuff to only images) into something for Audio+ Video is quite simple (difference in FLV betwen audio and video "Tag"s is minimal). But steel doing it from Alchymy (probably encoding video into H264) looks interesting.
Blender
2010-06-09 08:34:43
@Ole Jak sounds good. Would like to see your implementation when you're done. Goodluck!
George Profenza
2010-06-09 10:35:25