[speex-dev] SPEEX_GET_SAMPLING_RATE of encoder is wrong

[Jean-Marc Valin]

Hi,

Do you get that problem with speex_nb_mode too (or only speex_wb_mode)?

        Jean-Marc

Le lun 29/03/2004 à 05:35, Chris Flerackers a écrit :
> Hi,
> 
> I'm using speex 1.1.4 and when I query SPEEX_GET_SAMPLING_RATE
> as in
> speex_encoder_ctl ( m_pEncoderState, SPEEX_GET_SAMPLING_RATE,
> &m_SampleRate );
> I get
> 2
> The encoder is initialized with
> m_pEncoderState = speex_encoder_init ( &speex_wb_mode );
> 
> On the decoder side, the correct sampling rate is returned:
> m_pDecoderState = speex_decoder_init ( &speex_wb_mode );
> speex_decoder_ctl ( m_pDecoderState, SPEEX_GET_SAMPLING_RATE,
> &m_SampleRate );
> 
> I debugged the encoder and the stack trace is as follows:
> -> speex_encoder_ctl ( m_pEncoderState, SPEEX_GET_SAMPLING_RATE,
> &m_SampleRate );
> -> int speex_encoder_ctl(void *state, int request, void *ptr)
>     return (*((SpeexMode**)state))->enc_ctl(state, request, ptr);
> -> int sb_encoder_ctl(void *state, int request, void *ptr)
> ...
> case SPEEX_GET_SAMPLING_RATE:
>       (*(int*)ptr)=st->sampling_rate;
>       break;
> ...
> And st->sampling_rate is 2.
> 
> I debugged some further and it seems:
> sb_encoder_init
> calls
> speex_decoder_ctl(st->st_low, SPEEX_GET_SAMPLING_RATE, &st->sampling_rate);
> to get the sampling rate. I think it should be speex_encoder_ctl (otherwise
> SBEncState * is
> interpreted as SBDecState *).
> 
> Best regards,
> Chris
> 
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-- 
Jean-Marc Valin
http://www.xiph.org/~jm/
LABORIUS
Université de Sherbrooke, Québec, Canada


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