Changes between Version 56 and Version 57 of Encode/AAC

Timestamp:

Apr 20, 2023, 7:03:37 AM (3 years ago)

Author:

Mingye Wang

Comment:

"native" encoder actually calls audiotoolbox

Encode/AAC

@@ -121 +121 @@
 = Native FFmpeg AAC Encoder =
 
-The native FFmpeg AAC encoder. This is currently the second highest-quality AAC encoder available in FFmpeg and does not require an external library like the other AAC encoders described here. This is the default AAC encoder. 
+The native FFmpeg AAC encoder. This is currently the second highest-quality AAC encoder available in FFmpeg and does not require an external library like the other AAC encoders described here. This is the default AAC encoder.
+
+The native encoder is actually two encoders in a trench-coat. When a build is configured with --enable-audiotoolbox, the libavcodec implementation is swapped out for Apple's AudioToolbox.framework, normally available only on macOS. Apple's encoder is quite good and has HE-AAC support. You may have come across this implementation on other platforms as "QAAC" or "AudioToolboxWrapper", but licensing issues for these modifications is too much for FFmpeg to deal with.
 
 === Examples ===