[Speex-dev] Continous decoding of several audio files without destroying speex_decoder

[Jean-Marc Valin]

> We are using speex decoder only for narrow band decoding.
> Quite often, even though source frame is not silence, decoded audio is
> silence.
> I wonder there is a problem in the way we uses speex decoder API.
> Basically, we initialize speex decoder only once and just reset the decoder
> before we decoding another file.
> Do we need to intialize speex decoder and destory decoder for each audio
> file decoding ?

You can do a reset if you don't want to destroy and re-initialise.

Cheers,

	Jean-Marc

> Here is current pseudo code.
> main()
> {
> m_speex = speex_decoder_init(speex_nb_mode);
> speex_decoder_ctl(m_speex, SPEEX_SET_ENH, &tmp);
> speex_bits_init(&m_bits);
> 
> while(end of files)
> {
>    speex_decoder_ctl(m_speex, SPEEX_RESET_STATE, &tmp);
>    speex_bits_reset(&m_bits);
> 
>    OpenFile(speex audio file);
>    while(end of file)
>    {
>        fread(speex frame);
>       speex_bits_read_from();
>       speex_decode_int();
>       fwrite(decoded audio);
>    }
>    CloseFile(speex audio file);
> }
> 
> speex_decoder_destroy();
> speex_bits_destroy();
> }
> 
> Thanks in advance for your help.
> 
> 
> 
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