kopia lustrzana https://github.com/f4exb/sdrangel
622 wiersze
25 KiB
C++
622 wiersze
25 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2017 Edouard Griffiths, 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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#ifndef PLUGINS_CHANNELTX_MODATV_ATVMODSOURCE_H_
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#define PLUGINS_CHANNELTX_MODATV_ATVMODSOURCE_H_
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#include <vector>
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#include <QObject>
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#include <QMutex>
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#include <opencv2/core/core.hpp>
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#include <opencv2/highgui/highgui.hpp>
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#include <opencv2/videoio.hpp>
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#include <stdint.h>
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#include "dsp/channelsamplesource.h"
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#include "dsp/nco.h"
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#include "dsp/interpolator.h"
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#include "util/movingaverage.h"
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#include "dsp/fftfilt.h"
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#include "util/message.h"
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#include "atvmodsettings.h"
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class MessageQueue;
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class ATVModSource : public ChannelSampleSource
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{
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public:
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ATVModSource();
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~ATVModSource();
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virtual void pull(SampleVector::iterator begin, unsigned int nbSamples);
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virtual void pullOne(Sample& sample);
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virtual void prefetch(unsigned int nbSamples);
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int getEffectiveSampleRate() const { return m_tvSampleRate; };
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double getMagSq() const { return m_movingAverage.asDouble(); }
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void getCameraNumbers(std::vector<int>& numbers);
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void setMessageQueueToGUI(MessageQueue *messageQueue) { m_messageQueueToGUI = messageQueue; }
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void getLevels(qreal& rmsLevel, qreal& peakLevel, int& numSamples) const
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{
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rmsLevel = m_rmsLevel;
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peakLevel = m_peakLevelOut;
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numSamples = m_levelNbSamples;
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}
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void applyChannelSettings(int channelSampleRate, int channelFrequencyOffset, bool force = false);
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void applySettings(const ATVModSettings& settings, bool force = false);
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void openImage(const QString& fileName);
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void openVideo(const QString& fileName);
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void seekVideoFileStream(int seekPercentage);
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void reportVideoFileSourceStreamTiming();
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void configureCameraIndex(unsigned int index);
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void configureCameraData(uint32_t index, float mnaualFPS, bool manualFPSEnable);
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static void getBaseValues(int outputSampleRate, int linesPerSecond, int& sampleRateUnits, uint32_t& nbPointsPerRateUnit);
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static float getRFBandwidthDivisor(ATVModSettings::ATVModulation modulation);
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private:
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class ATVCamera
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{
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public:
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cv::VideoCapture m_camera; //!< camera object
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cv::Mat m_videoframeOriginal; //!< camera non resized image
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cv::Mat m_videoFrame; //!< displayable camera frame
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int m_cameraNumber; //!< camera device number
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float m_videoFPS; //!< camera FPS rate
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float m_videoFPSManual; //!< camera FPS rate manually set
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bool m_videoFPSManualEnable; //!< Enable camera FPS rate manual set value
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int m_videoWidth; //!< camera frame width
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int m_videoHeight; //!< camera frame height
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float m_videoFx; //!< camera horizontal scaling factor
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float m_videoFy; //!< camera vertictal scaling factor
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float m_videoFPSq; //!< camera FPS sacaling factor
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float m_videoFPSqManual; //!< camera FPS sacaling factor manually set
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float m_videoFPSCount; //!< camera FPS fractional counter
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int m_videoPrevFPSCount; //!< camera FPS previous integer counter
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ATVCamera() :
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m_cameraNumber(-1),
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m_videoFPS(25.0f),
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m_videoFPSManual(20.0f),
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m_videoFPSManualEnable(false),
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m_videoWidth(1),
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m_videoHeight(1),
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m_videoFx(1.0f),
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m_videoFy(1.0f),
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m_videoFPSq(1.0f),
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m_videoFPSqManual(1.0f),
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m_videoFPSCount(0.0f),
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m_videoPrevFPSCount(0)
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{}
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ATVCamera(const ATVCamera& camera) :
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m_camera(camera.m_camera),
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m_videoframeOriginal(camera.m_videoframeOriginal),
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m_videoFrame(camera.m_videoFrame),
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m_cameraNumber(camera.m_cameraNumber),
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m_videoFPS(camera.m_videoFPS),
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m_videoFPSManual(camera.m_videoFPSManual),
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m_videoFPSManualEnable(camera.m_videoFPSManualEnable),
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m_videoWidth(camera.m_videoWidth),
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m_videoHeight(camera.m_videoHeight),
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m_videoFx(camera.m_videoFx),
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m_videoFy(camera.m_videoFy),
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m_videoFPSq(camera.m_videoFPSq),
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m_videoFPSqManual(camera.m_videoFPSqManual),
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m_videoFPSCount(camera.m_videoFPSCount),
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m_videoPrevFPSCount(camera.m_videoPrevFPSCount)
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{}
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};
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enum LineType
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{
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LineImage, //!< Full image line
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LineImageHalf1Short, //!< Half image line first then short pulse
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LineImageHalf1Broad, //!< Half image line first then broad pulse
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LineImageHalf2, //!< Half image line first black then image
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LineShortPulses, //!< VSync short pulses a.k.a equalizing
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LineBroadPulses, //!< VSync broad pulses a.k.a field sync
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LineShortBroadPulses, //!< VSync short then broad pulses
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LineBroadShortPulses, //!< VSync broad then short pulses
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LineShortBlackPulses, //!< VSync short pulse then black
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LineBlack, //!< Full black line
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};
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int m_channelSampleRate;
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int m_channelFrequencyOffset;
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ATVModSettings m_settings;
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NCO m_carrierNco;
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Complex m_modSample;
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float m_modPhasor; //!< For FM modulation
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Interpolator m_interpolator;
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Real m_interpolatorDistance;
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Real m_interpolatorDistanceRemain;
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int m_tvSampleRate; //!< sample rate for generating signal
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uint32_t m_pointsPerLine; //!< Number of points per full line
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int m_pointsPerSync; //!< number of line points for the horizontal sync
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int m_pointsPerBP; //!< number of line points for the back porch
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int m_pointsPerImgLine; //!< number of line points for the image line
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uint32_t m_pointsPerFP; //!< number of line points for the front porch
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int m_pointsPerVEqu; //!< number of line points for the equalizing (short) pulse
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int m_pointsPerVSync; //!< number of line points for the vertical sync (broad) pulse
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int m_nbLines; //!< number of lines per complete frame
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int m_nbLines2; //!< same number as above (non interlaced) or Euclidean half the number above (interlaced)
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int m_nbLinesField1; //!< In interlaced mode: number of lines in field1 transition included
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uint32_t m_nbImageLines2; //!< half the number of effective image lines
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int m_nbImageLines; //!< number of effective image lines
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uint32_t m_imageLineStart1; //!< start index of line for field 1
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uint32_t m_imageLineStart2; //!< start index of line for field 2
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int m_nbHorizPoints; //!< number of line points per horizontal line
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float m_blankLineLvel; //!< video level of blank lines
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uint32_t m_pointsPerHBar; //!< number of line points for a bar of the bar chart
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float m_hBarIncrement; //!< video level increment at each horizontal bar increment
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uint32_t m_linesPerVBar; //!< number of lines for a bar of the bar chart
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float m_vBarIncrement; //!< video level increment at each vertical bar increment
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bool m_interlaced; //!< true if image is interlaced (2 half frames per frame)
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int m_horizontalCount; //!< current point index on line
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int m_lineCount; //!< current line index in frame
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int m_imageLine; //!< current line index in image
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float m_fps; //!< resulting frames per second
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LineType m_lineType; //!< current line type
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MovingAverageUtil<double, double, 16> m_movingAverage;
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quint32 m_levelCalcCount;
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qreal m_rmsLevel;
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qreal m_peakLevelOut;
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Real m_peakLevel;
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Real m_levelSum;
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cv::Mat m_imageFromFile; //!< original image not resized not overlaid by text
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cv::Mat m_imageOriginal; //!< original not resized image
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cv::Mat m_image; //!< resized image for transmission at given rate
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bool m_imageOK;
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cv::VideoCapture m_video; //!< current video capture
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cv::Mat m_videoframeOriginal; //!< current frame from video
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cv::Mat m_videoFrame; //!< current displayable video frame
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float m_videoFPS; //!< current video FPS rate
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int m_videoWidth; //!< current video frame width
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int m_videoHeight; //!< current video frame height
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float m_videoFx; //!< current video horizontal scaling factor
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float m_videoFy; //!< current video vertictal scaling factor
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float m_videoFPSq; //!< current video FPS sacaling factor
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float m_videoFPSCount; //!< current video FPS fractional counter
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int m_videoPrevFPSCount; //!< current video FPS previous integer counter
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int m_videoLength; //!< current video length in frames
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bool m_videoEOF; //!< current video has reached end of file
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bool m_videoOK;
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std::vector<ATVCamera> m_cameras; //!< vector of available cameras
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int m_cameraIndex; //!< current camera index in list of available cameras
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std::string m_overlayText;
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QString m_imageFileName;
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QString m_videoFileName;
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// Used for standard SSB
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fftfilt* m_SSBFilter;
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Complex* m_SSBFilterBuffer;
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int m_SSBFilterBufferIndex;
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// Used for vestigial SSB with asymmetrical filtering (needs double sideband scheme)
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fftfilt* m_DSBFilter;
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Complex* m_DSBFilterBuffer;
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int m_DSBFilterBufferIndex;
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MessageQueue *m_messageQueueToGUI;
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static const int m_ssbFftLen;
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static const float m_blackLevel;
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static const float m_spanLevel;
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static const int m_levelNbSamples;
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static const int m_nbBars; //!< number of bars in bar or chessboard patterns
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static const int m_cameraFPSTestNbFrames; //!< number of frames for camera FPS test
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static const LineType StdPAL625_F1Start[];
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static const LineType StdPAL625_F2Start[];
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static const LineType StdPAL525_F1Start[];
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static const LineType StdPAL525_F2Start[];
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static const LineType Std819_F1Start[];
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static const LineType Std819_F2Start[];
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static const LineType StdShort_F1Start[];
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static const LineType StdShort_F2Start[];
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void pullFinalize(Complex& ci, Sample& sample);
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void pullVideo(Real& sample);
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void calculateLevel(Real& sample);
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void modulateSample();
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Complex& modulateSSB(Real& sample);
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Complex& modulateVestigialSSB(Real& sample);
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void applyStandard(const ATVModSettings& settings);
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void resizeImage();
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void calculateVideoSizes();
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void resizeVideo();
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void scanCameras();
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void releaseCameras();
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void calculateCamerasSizes();
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void resizeCameras();
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void resizeCamera();
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void mixImageAndText(cv::Mat& image);
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MessageQueue *getMessageQueueToGUI() { return m_messageQueueToGUI; }
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inline LineType getLineType(ATVModSettings::ATVStd standard, int lineNumber)
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{
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if (standard == ATVModSettings::ATVStdHSkip)
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{
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return LineImage; // all lines are image lines
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}
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else if (standard == ATVModSettings::ATVStdPAL625) // m_nbLines2 = 312 - fieldLine 0 = 313
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{
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if (lineNumber < m_nbLines2)
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{
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if (lineNumber < 5) { // field 1 start (0..4 in line index = line number - 1)
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return StdPAL625_F1Start[lineNumber];
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} else if (lineNumber < 22) { // field 1 black lines (5..21)
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return LineBlack;
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} else if (lineNumber == 22) { // field 1 half image line (22)
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return LineImageHalf2;
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} else if (lineNumber < m_nbLines2 - 2) { // field 1 full image (23..309)
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return LineImage;
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} else if (lineNumber < m_nbLines2) { // field 1 bottom (310..311)
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return LineShortPulses;
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}
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}
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else if (lineNumber == m_nbLines2) // field transition 1 -> 2 (312)
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{
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return LineShortBroadPulses;
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}
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else
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{
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int fieldLine = lineNumber - m_nbLines2 - 1;
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if (fieldLine < 5) { // field 2 start (313..(313+5-1=317))
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return StdPAL625_F2Start[fieldLine];
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} else if (fieldLine < 22) { // field 2 black lines (318..(313+22-1=334))
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return LineBlack;
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} else if (fieldLine < m_nbLines2 - 3) { // field 2 full image (335..(313+309-1=621))
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return LineImage;
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} else if (fieldLine == m_nbLines2 - 3) { // field 2 half image line (313+309=622)
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return LineImageHalf1Short;
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} else { // field 2 bottom (623..624..)
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return LineShortPulses;
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}
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}
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}
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else if (standard == ATVModSettings::ATVStdPAL525) // m_nbLines2 = 262 - fieldLine 0 = 263
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{
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if (lineNumber < m_nbLines2)
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{
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if (lineNumber < 9) { // field 1 start (0..8 in line index)
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return StdPAL525_F1Start[lineNumber];
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} else if (lineNumber < 20) { // field 1 black lines (9..19)
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return LineBlack;
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} else if (lineNumber < m_nbLines2) { // field 1 full image (20..261)
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return LineImage;
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}
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}
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else if (lineNumber == m_nbLines2) // field transition 1 -> 2 or field 1 half image line (262)
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{
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return LineImageHalf1Short;
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}
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else
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{
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int fieldLine = lineNumber - m_nbLines2 - 1;
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if (fieldLine < 9) { // field 2 start (263..(263+9-1=271))
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return StdPAL525_F2Start[fieldLine];
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} else if (fieldLine < 19) { // field 2 black lines (272..(263+19-1=281))
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return LineBlack;
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} else if (fieldLine == 19) { // field 2 half image line (263+19=282)
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return LineImageHalf2;
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} else if (fieldLine < m_nbLines2) { // field 2 full line (283..(263+262-1=524))
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return LineImage;
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} else { // failsafe: should not get there - same as field 1 start first line
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return LineShortPulses;
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}
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}
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}
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else if (standard == ATVModSettings::ATVStd819) // Standard F (Belgian) - m_nbLines2 = 409 - fieldLine 0 = 409
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{
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if (lineNumber < m_nbLines2)
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{
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if (lineNumber < 7) { // field 1 start (0..6 in line index)
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return Std819_F1Start[lineNumber];
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} else if (lineNumber < 26) { // field 1 black lines (7..25)
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return LineBlack;
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} else if (lineNumber == 26) { // field 1 half image line (26)
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return LineImageHalf2;
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} else if (lineNumber < m_nbLines2 - 3) { // field 1 full image (27..405) - 379 lines
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return LineImage;
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} else if (lineNumber < m_nbLines2) { // field 1 bottom (405..408)
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return LineShortPulses;
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}
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}
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else if (lineNumber == m_nbLines2) // transition field 1 -> 2 (409)
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{
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return LineShortBroadPulses;
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}
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else
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{
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int fieldLine = lineNumber - m_nbLines2 - 1;
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if (fieldLine < 6) { // field 2 start (410..(410+6-1=415))
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return Std819_F2Start[fieldLine];
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} else if (fieldLine < 26) { // field 2 black lines (416..(410+26-1=435))
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return LineBlack;
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} else if (fieldLine < m_nbLines2 - 4) { // field 2 full image (436..(410+405-1=814)) - 379 lines
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return LineImage;
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} else if (fieldLine == m_nbLines2 - 4) { // field 2 half image line (410+405=815)
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return LineImageHalf1Short;
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} else { // field 2 bottom (816..818..)
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return LineShortPulses;
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}
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}
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}
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else if (standard == ATVModSettings::ATVStdShortInterlaced)
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{
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if (lineNumber < m_nbLines2)
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{
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if (lineNumber < 2) {
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return StdShort_F1Start[lineNumber];
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} else {
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return LineImage;
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}
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}
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else
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{
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int fieldLine = lineNumber - m_nbLines2;
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if (fieldLine < 2) {
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return StdShort_F2Start[fieldLine];
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} else if (fieldLine < m_nbLines2) {
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return LineImage;
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} else { // failsafe - will add a black line for odd number of lines
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return LineBlack;
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}
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}
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}
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else if (standard == ATVModSettings::ATVStdShort)
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{
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if (lineNumber < 2) {
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return StdShort_F2Start[lineNumber];
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} else if (lineNumber < m_nbLines) {
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return LineImage;
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} else {
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return LineBlack;
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}
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}
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return LineBlack;
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}
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inline void pullImageLastHalfSample(Real& sample)
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{
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if (m_horizontalCount < m_pointsPerSync + m_pointsPerBP) { // sync
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pullImageSample(sample);
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} else if (m_horizontalCount < (m_nbHorizPoints/2)) {
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sample = m_blackLevel;
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} else {
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pullImageSample(sample);
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}
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}
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inline void pullImageFirstHalfShortSample(Real& sample)
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{
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if (m_horizontalCount < (m_nbHorizPoints/2)) {
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pullImageSample(sample);
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} else {
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pullVSyncLineEquPulsesSample(sample);
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}
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}
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inline void pullImageFirstHalfBroadSample(Real& sample)
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{
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if (m_horizontalCount < (m_nbHorizPoints/2)) {
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pullImageSample(sample);
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} else {
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pullVSyncLineLongPulsesSample(sample);
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}
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}
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inline void pullImageSample(Real& sample, bool noHSync = false)
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{
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if (m_horizontalCount < m_pointsPerSync) // sync pulse
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{
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sample = noHSync ? m_blackLevel : 0.0f; // ultra-black
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}
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else if (m_horizontalCount < m_pointsPerSync + m_pointsPerBP) // back porch
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{
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sample = m_blackLevel; // black
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}
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else if (m_horizontalCount < m_pointsPerSync + m_pointsPerBP + m_pointsPerImgLine)
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{
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if (m_imageLine >= m_nbImageLines) // out of image zone
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{
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sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel; // uniform line
|
|
return;
|
|
}
|
|
|
|
int pointIndex = m_horizontalCount - (m_pointsPerSync + m_pointsPerBP);
|
|
|
|
switch(m_settings.m_atvModInput)
|
|
{
|
|
case ATVModSettings::ATVModInputHBars:
|
|
sample = (pointIndex / m_pointsPerHBar) * m_hBarIncrement + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputVBars:
|
|
sample = (m_imageLine / m_linesPerVBar) * m_vBarIncrement + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputChessboard:
|
|
sample = (((m_imageLine / m_linesPerVBar)*5 + (pointIndex / m_pointsPerHBar)) % 2) * m_spanLevel * m_settings.m_uniformLevel + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputHGradient:
|
|
sample = (pointIndex / (float) m_pointsPerImgLine) * m_spanLevel + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputVGradient:
|
|
sample = (m_imageLine / (float) m_nbImageLines) * m_spanLevel + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputDiagonal:
|
|
sample = pointIndex < (m_imageLine * m_pointsPerImgLine) / m_nbImageLines ? m_blackLevel : m_settings.m_uniformLevel + m_blackLevel;
|
|
break;
|
|
case ATVModSettings::ATVModInputImage:
|
|
if (!m_imageOK || m_image.empty())
|
|
{
|
|
sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel;
|
|
}
|
|
else
|
|
{
|
|
unsigned char pixv;
|
|
pixv = m_image.at<unsigned char>(m_imageLine, pointIndex); // row (y), col (x)
|
|
sample = (pixv / 256.0f) * m_spanLevel + m_blackLevel;
|
|
}
|
|
break;
|
|
case ATVModSettings::ATVModInputVideo:
|
|
if (!m_videoOK || m_videoFrame.empty())
|
|
{
|
|
sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel;
|
|
}
|
|
else
|
|
{
|
|
unsigned char pixv;
|
|
pixv = m_videoFrame.at<unsigned char>(m_imageLine, pointIndex); // row (y), col (x)
|
|
sample = (pixv / 256.0f) * m_spanLevel + m_blackLevel;
|
|
}
|
|
break;
|
|
case ATVModSettings::ATVModInputCamera:
|
|
if (m_cameraIndex < 0)
|
|
{
|
|
sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel;
|
|
}
|
|
else
|
|
{
|
|
ATVCamera& camera = m_cameras[m_cameraIndex];
|
|
|
|
if (camera.m_videoFrame.empty())
|
|
{
|
|
sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel;
|
|
}
|
|
else
|
|
{
|
|
unsigned char pixv;
|
|
pixv = camera.m_videoFrame.at<unsigned char>(m_imageLine, pointIndex); // row (y), col (x)
|
|
sample = (pixv / 256.0f) * m_spanLevel + m_blackLevel;
|
|
}
|
|
}
|
|
break;
|
|
case ATVModSettings::ATVModInputUniform:
|
|
default:
|
|
sample = m_spanLevel * m_settings.m_uniformLevel + m_blackLevel; // uniform line
|
|
}
|
|
}
|
|
else // front porch
|
|
{
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineEquPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVEqu) {
|
|
sample = 0.0f; // ultra-black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2)) {
|
|
sample = m_blackLevel; // black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2) + m_pointsPerVEqu) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineLongPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2)) {
|
|
sample = m_blackLevel; // black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2) + m_pointsPerVSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineEquLongPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVEqu) {
|
|
sample = 0.0f; // ultra-black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2)) {
|
|
sample = m_blackLevel; // black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2) + m_pointsPerVSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineEquBlackPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVEqu) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineLongEquPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2)) {
|
|
sample = m_blackLevel; // black
|
|
} else if (m_horizontalCount < (m_nbHorizPoints/2) + m_pointsPerVEqu) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullVSyncLineLongBlackPulsesSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerVSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
|
|
inline void pullBlackLineSample(Real& sample)
|
|
{
|
|
if (m_horizontalCount < m_pointsPerSync) {
|
|
sample = 0.0f; // ultra-black
|
|
} else {
|
|
sample = m_blackLevel; // black
|
|
}
|
|
}
|
|
};
|
|
|
|
|
|
#endif /* PLUGINS_CHANNELTX_MODATV_ATVMOD_H_ */
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