Re: libmad 0.15.1b assertion failure

On Sun, Oct 31, 2004 at 02:55:57PM -0500, Glenn Maynard wrote:
> I accidentally loaded some non-audio data in my application, and I'm
> getting:
> 
> a.out: layer3.c:2640: mad_layer_III: Assertion `stream->md_len + md_len - si.main_data_begin <= (511 + 2048 + 8)' failed.
> 
> I'm using the low-level interface.  I can reproduce this with madlld,
> if I change INPUT_BUFFER_SIZE from 5*8192 to 4*8192 or lower (my own
> buffer is 16k).
> 
> The file (edited down as small as I can get it while still triggering
> this) is at:
> 
>         http://zewt.org/~glenn/testfile
> 
> There's some MPEG-1 video in there, which I suppose MAD is picking up;
> that's fine, I just want it to gracefully play garbage or give a fatal
> error, without dying.

Any tips on this?  I like MAD for its robustness, so it's frustrating to
have a known case where user data can crash my application.

-- 
Glenn Maynard