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174 lines
3.8 KiB
174 lines
3.8 KiB
/*
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* Copyright (C) 2014 by Jonathan Naylor G4KLX
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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 2 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "AMBE3000Thread.h"
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#include "DStarDefines.h"
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const unsigned int MAX_PACKETS = 10U;
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CAMBE3000Thread::CAMBE3000Thread(CDV3000Controller* dongle) :
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CDongleThread(),
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m_dongle(dongle),
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m_wantMode(A3_IDLE),
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m_mode(A3_IDLE),
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m_packets(0U)
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{
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wxASSERT(dongle != NULL);
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}
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CAMBE3000Thread::~CAMBE3000Thread()
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{
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}
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bool CAMBE3000Thread::open()
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{
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m_mode = m_wantMode = A3_IDLE;
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m_packets = 0U;
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return m_dongle->open();
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}
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void* CAMBE3000Thread::Entry()
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{
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while (!m_killed) {
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if (m_mode != m_wantMode) {
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if (m_mode == A3_DECODE && m_packets == 0U && m_decodeData.isEmpty()) {
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if (m_bleep)
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sendBleep();
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reset();
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m_mode = m_wantMode;
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} else if (m_mode == A3_ENCODE && m_packets == 0U && m_encodeAudio.isEmpty()) {
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reset();
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m_mode = m_wantMode;
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} else if (m_mode == A3_IDLE) {
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m_mode = m_wantMode;
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}
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}
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switch (m_mode) {
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case A3_DECODE:
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processDecodeIn();
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processDecodeOut();
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break;
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case A3_ENCODE:
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processEncodeIn();
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processEncodeOut();
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break;
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default:
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break;
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}
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Sleep(5UL);
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}
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m_dongle->close();
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delete m_dongle;
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return NULL;
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}
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void CAMBE3000Thread::setDecode()
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{
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if (m_mode != A3_DECODE && m_decodeCallback == NULL)
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return;
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m_wantMode = A3_DECODE;
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}
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void CAMBE3000Thread::setEncode()
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{
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if (m_mode != A3_ENCODE && m_encodeCallback == NULL)
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return;
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m_wantMode = A3_ENCODE;
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}
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void CAMBE3000Thread::setIdle()
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{
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m_wantMode = A3_IDLE;
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}
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void CAMBE3000Thread::processDecodeIn()
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{
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if (m_packets >= MAX_PACKETS)
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return;
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unsigned char ambe[VOICE_FRAME_LENGTH_BYTES];
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unsigned int len = m_decodeData.getData(ambe, VOICE_FRAME_LENGTH_BYTES);
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if (len == 0U)
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return;
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// Convert the AMBE data to real audio, even if it's nonsense
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m_dongle->decodeIn(ambe, VOICE_FRAME_LENGTH_BYTES);
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m_packets++;
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}
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void CAMBE3000Thread::processDecodeOut()
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{
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wxFloat32 audioIn[DSTAR_AUDIO_BLOCK_SIZE];
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bool res = m_dongle->decodeOut(audioIn, DSTAR_AUDIO_BLOCK_SIZE);
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if (res) {
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wxFloat32 audioOut[DSTAR_RADIO_BLOCK_SIZE];
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upSample(audioIn, audioOut);
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m_decodeCallback->decodeCallback(audioOut, DSTAR_RADIO_BLOCK_SIZE);
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if (m_packets > 0U)
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m_packets--;
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}
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}
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void CAMBE3000Thread::processEncodeIn()
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{
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if (m_packets >= MAX_PACKETS)
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return;
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wxFloat32 audioIn[DSTAR_RADIO_BLOCK_SIZE];
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::memset(audioIn, 0x00, DSTAR_RADIO_BLOCK_SIZE * sizeof(wxFloat32));
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unsigned int len = m_encodeAudio.getData(audioIn, DSTAR_RADIO_BLOCK_SIZE);
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if (len == 0U)
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return;
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wxFloat32 audioOut[DSTAR_AUDIO_BLOCK_SIZE];
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downSample(audioIn, audioOut);
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// Convert the audio into AMBE data
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m_dongle->encodeIn(audioOut, DSTAR_AUDIO_BLOCK_SIZE);
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m_packets++;
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}
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void CAMBE3000Thread::processEncodeOut()
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{
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unsigned char ambe[VOICE_FRAME_LENGTH_BYTES];
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bool res = m_dongle->encodeOut(ambe, VOICE_FRAME_LENGTH_BYTES);
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if (res) {
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m_encodeCallback->encodeCallback(ambe, VOICE_FRAME_LENGTH_BYTES);
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if (m_packets > 0U)
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m_packets--;
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}
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}
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