mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-15 21:01:45 -05:00
364 lines
9.2 KiB
C++
364 lines
9.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 F4EXB //
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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 as 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 V3 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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#include <QColor>
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#include "dsp/dspengine.h"
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#include "util/simpleserializer.h"
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#include "settings/serializable.h"
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#include "atvdemodsettings.h"
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ATVDemodSettings::ATVDemodSettings() :
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m_channelMarker(0)
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{
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resetToDefaults();
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}
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void ATVDemodSettings::resetToDefaults()
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{
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m_inputFrequencyOffset = 0;
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m_forceDecimator = false;
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m_bfoFrequency = 0.0f;
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m_atvModulation = ATV_FM1;
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m_fmDeviation = 0.5f;
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m_amScalingFactor = 100;
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m_amOffsetFactor = 0;
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m_fftFiltering = false;
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m_fftOppBandwidth = 0;
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m_fftBandwidth = 6000;
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m_nbLines = 625;
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m_fps = 25;
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m_atvStd = ATVStdPAL625;
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m_hSync = false;
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m_vSync = false;
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m_invertVideo = false;
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m_halfFrames = false; // m_fltRatioOfRowsToDisplay = 1.0
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m_levelSynchroTop = 0.15f;
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m_levelBlack = 0.3f;
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m_lineTimeFactor = 0;
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m_topTimeFactor = 25;
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m_rgbColor = QColor(255, 255, 255).rgb();
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m_title = "ATV Demodulator";
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m_udpAddress = "127.0.0.1";
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m_udpPort = 9999;
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m_streamIndex = 0;
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}
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QByteArray ATVDemodSettings::serialize() const
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{
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SimpleSerializer s(1);
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s.writeS64(1, m_inputFrequencyOffset);
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s.writeU32(2, m_rgbColor);
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s.writeS32(3, roundf(m_levelSynchroTop*1000.0)); // mV
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s.writeS32(4, roundf(m_levelBlack*1000.0)); // mV
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s.writeS32(5, m_lineTimeFactor);
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s.writeS32(6, m_topTimeFactor);
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s.writeS32(7, m_atvModulation);
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s.writeS32(8, m_fps);
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s.writeBool(9, m_hSync);
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s.writeBool(10,m_vSync);
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s.writeBool(11, m_halfFrames);
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s.writeU32(12, m_fftBandwidth);
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s.writeU32(13, m_fftOppBandwidth);
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s.writeS32(14, m_bfoFrequency);
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s.writeBool(15, m_invertVideo);
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s.writeS32(16, m_nbLines);
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s.writeS32(17, roundf(m_fmDeviation * 500.0));
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s.writeS32(18, m_atvStd);
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if (m_channelMarker) {
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s.writeBlob(19, m_channelMarker->serialize());
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}
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s.writeString(20, m_title);
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s.writeS32(21, m_streamIndex);
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s.writeS32(22, m_amScalingFactor);
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s.writeS32(23, m_amOffsetFactor);
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s.writeBool(24, m_fftFiltering);
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s.writeBool(25, m_forceDecimator);
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return s.final();
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}
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bool ATVDemodSettings::deserialize(const QByteArray& arrData)
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{
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SimpleDeserializer d(arrData);
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if (!d.isValid())
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{
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resetToDefaults();
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return false;
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}
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if (d.getVersion() == 1)
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{
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QByteArray bytetmp;
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int tmp;
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d.readS64(1, &m_inputFrequencyOffset, 0);
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// TODO: rgb color
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d.readS32(3, &tmp, 100);
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m_levelSynchroTop = tmp / 1000.0f;
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d.readS32(4, &tmp, 310);
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m_levelBlack = tmp / 1000.0f;
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d.readS32(5, &m_lineTimeFactor, 0);
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d.readS32(6, &m_topTimeFactor, 25);
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d.readS32(7, &tmp, 0);
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m_atvModulation = static_cast<ATVModulation>(tmp);
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d.readS32(8, &tmp, 25);
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int fpsIndex = getFpsIndex(tmp);
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m_fps = getFps(fpsIndex);
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d.readBool(9, &m_hSync, false);
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d.readBool(10, &m_vSync, false);
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d.readBool(11, &m_halfFrames, false);
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d.readU32(12, &m_fftBandwidth, 6000);
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d.readU32(13, &m_fftOppBandwidth, 0);
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d.readS32(14, &m_bfoFrequency, 0);
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d.readBool(15, &m_invertVideo, false);
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d.readS32(16, &tmp, 625);
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int nbLinesIndex = getNumberOfLinesIndex(tmp);
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m_nbLines = getNumberOfLines(nbLinesIndex);
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d.readS32(17, &tmp, 250);
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m_fmDeviation = tmp / 500.0f;
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d.readS32(18, &tmp, 1);
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m_atvStd = static_cast<ATVStd>(tmp);
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d.readS32(21, &m_streamIndex, 0);
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d.readS32(22, &m_amScalingFactor, 100);
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d.readS32(23, &m_amOffsetFactor, 0);
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d.readBool(24, &m_fftFiltering, false);
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d.readBool(25, &m_forceDecimator, false);
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return true;
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}
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else
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{
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resetToDefaults();
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return false;
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}
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}
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int ATVDemodSettings::getFps(int fpsIndex)
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{
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switch(fpsIndex)
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{
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case 0:
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return 30;
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break;
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case 2:
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return 20;
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break;
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case 3:
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return 16;
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break;
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case 4:
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return 12;
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break;
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case 5:
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return 10;
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break;
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case 6:
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return 8;
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break;
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case 7:
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return 5;
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break;
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case 8:
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return 2;
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break;
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case 9:
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return 1;
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break;
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case 1:
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default:
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return 25;
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break;
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}
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}
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int ATVDemodSettings::getFpsIndex(int fps)
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{
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if (fps <= 1) {
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return 9;
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} else if (fps <= 2) {
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return 8;
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} else if (fps <= 5) {
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return 7;
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} else if (fps <= 8) {
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return 6;
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} else if (fps <= 10) {
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return 5;
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} else if (fps <= 12) {
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return 4;
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} else if (fps <= 16) {
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return 3;
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} else if (fps <= 20) {
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return 2;
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} else if (fps <= 25) {
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return 1;
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} else {
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return 0;
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}
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}
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int ATVDemodSettings::getNumberOfLines(int nbLinesIndex)
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{
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switch(nbLinesIndex)
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{
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case 0:
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return 640;
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break;
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case 2:
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return 525;
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break;
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case 3:
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return 480;
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break;
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case 4:
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return 405;
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break;
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case 5:
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return 360;
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break;
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case 6:
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return 343;
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break;
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case 7:
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return 240;
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break;
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case 8:
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return 180;
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break;
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case 9:
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return 120;
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break;
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case 10:
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return 90;
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break;
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case 11:
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return 60;
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break;
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case 12:
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return 32;
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break;
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case 1:
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default:
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return 625;
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break;
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}
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}
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int ATVDemodSettings::getNumberOfLinesIndex(int nbLines)
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{
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if (nbLines <= 32) {
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return 12;
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} else if (nbLines <= 60) {
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return 11;
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} else if (nbLines <= 90) {
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return 10;
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} else if (nbLines <= 120) {
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return 9;
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} else if (nbLines <= 180) {
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return 8;
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} else if (nbLines <= 240) {
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return 7;
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} else if (nbLines <= 343) {
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return 6;
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} else if (nbLines <= 360) {
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return 5;
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} else if (nbLines <= 405) {
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return 4;
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} else if (nbLines <= 480) {
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return 3;
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} else if (nbLines <= 525) {
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return 2;
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} else if (nbLines <= 625) {
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return 1;
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} else {
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return 0;
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}
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}
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float ATVDemodSettings::getNominalLineTime(int nbLines, int fps)
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{
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return 1.0f / ((float) nbLines * (float) fps);
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}
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/**
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* calculates m_fltLineTimeMultiplier
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*/
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void ATVDemodSettings::lineTimeUpdate(unsigned int sampleRate)
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{
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float nominalLineTime = getNominalLineTime(m_nbLines, m_fps);
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int lineTimeScaleFactor = (int) std::log10(nominalLineTime);
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if (sampleRate == 0) {
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m_fltLineTimeMultiplier = std::pow(10.0, lineTimeScaleFactor-3);
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} else {
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m_fltLineTimeMultiplier = 1.0f / sampleRate;
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}
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}
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float ATVDemodSettings::getLineTime(unsigned int sampleRate)
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{
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lineTimeUpdate(sampleRate);
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float nominalLineTime = 1.0f / ((float) m_nbLines * (float) m_fps);
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return nominalLineTime + m_fltLineTimeMultiplier * m_lineTimeFactor;
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}
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float ATVDemodSettings::getTopTime(unsigned int sampleRate)
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{
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return getNominalLineTime(m_nbLines, m_fps) * (4.7f / 64.0f) * (m_topTimeFactor / 100.0f);
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}
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int ATVDemodSettings::getRFSliderDivisor(unsigned int sampleRate)
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{
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int scaleFactor = (int) std::log10(sampleRate/2);
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return std::pow(10.0, scaleFactor-1);
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}
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float ATVDemodSettings::getRFBandwidthDivisor(ATVModulation modulation)
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{
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switch(modulation)
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{
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case ATV_USB:
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case ATV_LSB:
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return 1.05f;
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break;
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case ATV_FM1:
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case ATV_FM2:
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case ATV_AM:
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default:
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return 2.2f;
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}
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}
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void ATVDemodSettings::getBaseValues(int sampleRate, int linesPerSecond, int& tvSampleRate, uint32_t& nbPointsPerLine)
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{
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int maxPoints = sampleRate / linesPerSecond;
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int i = maxPoints;
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for (; i > 0; i--)
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{
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if ((i * linesPerSecond) % 10 == 0) {
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break;
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}
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}
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nbPointsPerLine = i == 0 ? maxPoints : i;
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tvSampleRate = nbPointsPerLine * linesPerSecond;
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} |