mirror of
https://github.com/DSheirer/sdrtrunk.git
synced 2026-11-12 08:37:25 -05:00
e61c3a891c
Converted to use float primitives and to keep samples in buffer format until the sample rate is decimated to 48kHz. Added new non-recursive, CIC decimation filter -- untested Updated sound card/mixer input source management. Now testing for mono/stereo support for each card and limiting channel choices accordingly. Separated the mixersource into a ComplexMixer and and SimplexMixerSource. The ComplexMixer is used for sound card based tuners like the funcube. The SimplexMixerSource is used for demodulated sound card inputs. Interfaces for sample handling - standardized on using 'Complex' to indicate I/Q samples and 'Simplex' to indicate demodulated float samples. The processing chain now accepts either a decimated (48k) list of complex samples from a tuner channel source, or a 48k simplex buffer (array of demodulated float samples). Resolved issue with HackRF tuner not applying tuner configuration information.
77 lines
2.0 KiB
Java
77 lines
2.0 KiB
Java
/*******************************************************************************
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* SDR Trunk
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* Copyright (C) 2014 Dennis Sheirer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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******************************************************************************/
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package sample.complex;
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import java.util.concurrent.CopyOnWriteArrayList;
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/**
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* Broadcasts received float samples to multiple listeners
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*/
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public class ComplexSampleBroadcaster implements ComplexSampleListener
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{
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private CopyOnWriteArrayList<ComplexSampleListener> mListeners =
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new CopyOnWriteArrayList<ComplexSampleListener>();
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@Override
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public void receive( float i, float q )
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{
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broadcast( i, q );
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}
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/**
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* Clear listeners to prepare for garbage collection
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*/
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public void dispose()
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{
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mListeners.clear();
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}
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public boolean hasListeners()
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{
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return !mListeners.isEmpty();
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}
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public int getListenerCount()
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{
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return mListeners.size();
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}
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public void addListener( ComplexSampleListener listener )
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{
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mListeners.add( listener );
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}
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public void removeListener( ComplexSampleListener listener )
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{
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mListeners.remove( listener );
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}
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public void clear()
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{
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mListeners.clear();
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}
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public void broadcast( float i, float q )
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{
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for( ComplexSampleListener listener: mListeners )
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{
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listener.receive( i, q );
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}
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}
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}
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