Lines Matching refs:signal
161 * Push one sample into a circular signal buffer.
164 static void aptx_qmf_filter_signal_push(FilterSignal *signal, int32_t sample)
166 signal->buffer[signal->pos ] = sample;
167 signal->buffer[signal->pos+FILTER_TAPS] = sample;
168 signal->pos = (signal->pos + 1) & (FILTER_TAPS - 1);
172 * Compute the convolution of the signal with the coefficients, and reduce
176 static int32_t aptx_qmf_convolution(FilterSignal *signal,
180 int32_t *sig = &signal->buffer[signal->pos];