[Vorbis] Re: [Vorbis-dev] Crash in mdct_forward

[matthew.tennant at symbian.com]

Here is a more detailed backtrace:

vorbis_analysis_blockout 
(pointer to vorbis_dsp_state has analysisp = 1 
        vi  pointer with version=0 channels=2 rate=44100 
bitrate_upper=-1bitrate_nominal=64000,bitrate_lower=-1,bitrate_window=2
        pcm_storage=5120
        pcm_current=4096
        pcm_returned = 0
pointer to vorbis_block has pcm = NULL)
 
_ve_envelope_search
(pointer to v as above)

_ve_amp
(ve = pointer to envelope_lookup with 
ch=2,winlength=128,searchstep=64,minerergy=-80.00000, storage=128, cursor 
=1024
bands = pointer to envelope_band with begin = 2 end =4
pos = 0)

mdct_forward
(init = pointer to mdct_lookup with n=128, data buffer seems valid)
free
User::Free(void *)
RHeap::Free(void *)
RHeap::GetAddress(const void *)const 
RHeap::CheckCell(const RHeap::SCell *)const 
Panic(TCdtPanic)
)





The problem in bug 216 was the MDCT being called with a bogus data
buffer (0xd is not a valid pointer).  Do you have a more detailed
backtrace to start with?

Monty
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