[Flac-dev] Getting subframe type=verbatim on 16 bit files

[James Smith]

I'm using libFLACC++ and libFLAC and I think that I'm using the calls in the
typical order (see code below).  But every monoe or stereo file that I send
thru I get files that are the same sze as the orginal wave files.

Doing a flac -a on the flac files I see that I get:

frame=9 blocksize=4608  sample_rate=8000        channels=1
channel_assignment=INDEPENDENT
        subframe=0      wasted_bits=0   type=VERBATIM
 .......

Any idea why/ where I have goofed?

Thanks,

James


Code snippet:
===================================================
    FlacEncoder     flacCompressor;
    bool            setValue = false;
    
    // set up regular parameters
    setValue = flacCompressor.set_channels (numChannels);
    setValue = flacCompressor.set_bits_per_sample (bitsPerSample);
    setValue = flacCompressor.set_sample_rate (sampleRate);
    setValue = flacCompressor.set_blocksize(4608);
    setValue = flacCompressor.set_qlp_coeff_precision (0);
    setValue = flacCompressor.set_min_residual_partition_order (3);
    setValue = flacCompressor.set_max_residual_partition_order (3);
    setValue = flacCompressor.set_max_lpc_order (8);
    setValue = flacCompressor.set_rice_parameter_search_dist(0);
    setValue = flacCompressor.set_do_exhaustive_model_search(false);
    setValue = flacCompressor.set_do_escape_coding(false);
    
    
    if (numChannels > 1)
    {
        setValue = flacCompressor.set_do_mid_side_stereo(true);
        setValue = flacCompressor.set_loose_mid_side_stereo(true);
    }    
    
    if (!flacCompressor.SetupInboundBuffer(pcmData))   return false;

    
    FLAC__StreamMetadata            padding;
    FLAC__StreamMetadata            *metadata [1];

    // stuff some pading for metadata
    padding.type        = FLAC__METADATA_TYPE_PADDING;
    padding.is_last        = 0;
    padding.length        = 40;
    metadata[0]            = &padding;
    setValue = flacCompressor.set_metadata(metadata, 1);
    
    FlacEncoder::Stream::State flacState = flacCompressor.init();
    
    /*
    // verify that the values are correct...they are fine, why still
verbatim?
    int i;
    i = flacCompressor.get_channels ();
    i = flacCompressor.get_bits_per_sample ();
    i = flacCompressor.get_sample_rate ();
    i = flacCompressor.get_blocksize();
    i = flacCompressor.get_qlp_coeff_precision ();  // default=0 so encoding
software picks the best
    i = flacCompressor.get_min_residual_partition_order ();
    i = flacCompressor.get_max_residual_partition_order ();     // Had tried
0,6  now try 3,3
    i = flacCompressor.get_max_lpc_order ();
    setValue = flacCompressor.get_do_mid_side_stereo();
    setValue = flacCompressor.get_loose_mid_side_stereo();
    */
    
    // is this state okay?
    if (flacState  != FLAC__STREAM_ENCODER_OK)
        return false; // bad settings for doing this compression so quit...
    
    // shoot the final data buffer to the encoder....
    // we would have called process_interleaved if we had not created an
array per channel above...
    if (!flacCompressor.DoProcess())
    {
        flacState = flacCompressor.get_state();
        return false;
    }
    
    flacState = flacCompressor.get_state();
    flacCompressor.finish();
    
     flacCompressor.Release();
    
    return true;
}





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