2014-11-30 21:59:06 +00:00
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/* (C)2015 John Greb
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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 Licence version 3.
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*/
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#include "fcdthread.h"
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bool FCDThread::OpenSource(const char* cardname)
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{
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//fcd_rate = FCDPP_RATE;
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//fcd_channels =2;
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//fcd_format = SND_PCM_SFMT_U16_LE;
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fcd_stream = SND_PCM_STREAM_PLAYBACK;
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if (fcd_handle)
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return false;
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if ( snd_pcm_open( &fcd_handle, cardname, fcd_stream, 1 ) < 0 )
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return false;
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return true;
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}
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void FCDThread::CloseSource()
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{
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if (fcd_handle)
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snd_pcm_close( fcd_handle );
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fcd_handle = NULL;
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}
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void FCDThread::set_center_freq(double freq)
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{
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//TODO
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}
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void FCDThread::work(int n_items)
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{
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int l;
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SampleVector::iterator it;
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void *out;
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it = m_convertBuffer.begin();
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out = (void *)&it[0];
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l = snd_pcm_readi(fcd_handle, out, (snd_pcm_uframes_t)n_items);
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if (l > 0)
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m_sampleFifo->write(it, it + l);
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}
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