Lines Matching defs:subband
77 /* Split 2 intermediate subband samples into 4 final subbands downsampled to 1 sample */
143 int subband;
146 for (subband = 0; subband < NB_SUBBANDS; subband++) {
147 int32_t diff = av_clip_intp2(subband_samples[subband] - channel->prediction[subband].predicted_sample, 23);
148 aptx_quantize_difference(&channel->quantize[subband], diff,
149 channel->dither[subband],
150 channel->invert_quantize[subband].quantization_factor,
151 &ff_aptx_quant_tables[hd][subband]);
168 * sample from the subband featuring the smallest quantization error. */