descriptor header size limit in 'esds' box

[Jason239]

Hi.

I wonder why the maximum header size of the esds(in 'mp4a') box is 64.
It is defined as 'kMaxDecoderSpecificInfoSize' in es_descriptor.cc.

What is the purpose of this atom, and why is there a limit of 64?
One of my files has an error because this value is 80. Is there a problem with this file?

[kqyang]

@Jason239 The limit of 64 is an arbitrary value to avoid supporting size >= 128, which we do not think it would happen.

We'll fix the issue. Do you have a sample file we can use to verify the fix?

[Jason239]

Sure, here it is.

https://mpdsample.s3.amazonaws.com/share/BigBuckBunny_24_10m_aac%282ch%29.zip

Thanks.