[Libav-user] How to decode audio with data size of 20

[肖波]

Hi all,
 
How to decode the audio data of data sizeI(sample bit width) is 20?
I read the source code of libav 0.8.1 in libavformat/lxf.dec, and in about line 316 there a comment wrote:"read non-20-bit audio data into lxf->temp so we can deplanarize it". So does ffmpeg don't support audio with data size 20? Is there any solutions if I want to decode it?
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