kopia lustrzana https://github.com/f4exb/sdrangel
72 wiersze
2.3 KiB
C
72 wiersze
2.3 KiB
C
/*
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* Copyright (C) 2010 DSD Author
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* GPG Key ID: 0x3F1D7FD0 (74EF 430D F7F2 0A48 FCE6 F630 FAA2 635D 3F1D 7FD0)
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <string.h>
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#include "dsd.h"
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#include "dsd_nocarrier.h"
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void liveScanner(dsd_opts * opts, dsd_state * state)
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{
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#ifdef USE_PORTAUDIO
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if(opts->audio_in_type == 2)
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{
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PaError err = Pa_StartStream( opts->audio_in_pa_stream );
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if( err != paNoError )
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{
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fprintf( stderr, "An error occured while starting the portaudio input stream\n" );
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fprintf( stderr, "Error number: %d\n", err );
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fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
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return;
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}
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}
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#endif
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while (1)
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{
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noCarrier(opts, state);
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state->synctype = getFrameSync(opts, state);
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// recalibrate center/umid/lmid
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state->center = ((state->max) + (state->min)) / 2;
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state->umid = (((state->max) - state->center) * 5 / 8) + state->center;
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state->lmid = (((state->min) - state->center) * 5 / 8) + state->center;
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while (state->synctype != -1)
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{
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processFrame(opts, state);
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#ifdef TRACE_DSD
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state->debug_prefix = 'S';
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#endif
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state->synctype = getFrameSync(opts, state);
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#ifdef TRACE_DSD
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state->debug_prefix = '\0';
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#endif
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// recalibrate center/umid/lmid
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state->center = ((state->max) + (state->min)) / 2;
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state->umid = (((state->max) - state->center) * 5 / 8)
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+ state->center;
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state->lmid = (((state->min) - state->center) * 5 / 8)
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+ state->center;
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}
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}
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}
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