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ATV Modulator: still image loader

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This commit is contained in:
f4exb
2017-03-08 19:04:10 +01:00
parent 166f07f26f
commit 82de4eceec
4 changed files with 49 additions and 26 deletions
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plugins/channeltx/modatv/atvmod.cpp
+33 -14
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@@ -16,6 +16,8 @@
#include <QDebug>
#include "opencv2/imgproc/imgproc.hpp"
#include "dsp/upchannelizer.h"
#include "atvmod.h"
@@ -25,6 +27,7 @@ MESSAGE_CLASS_DEFINITION(ATVMod::MsgConfigureImageFileName, Message)
const float ATVMod::m_blackLevel = 0.3f;
const float ATVMod::m_spanLevel = 0.7f;
const int ATVMod::m_levelNbSamples = 10000; // every 10ms
const int ATVMod::m_nbBars = 6;
ATVMod::ATVMod() :
m_modPhasor(0.0f),
@@ -32,7 +35,8 @@ ATVMod::ATVMod() :
m_tvSampleRate(1000000),
m_settingsMutex(QMutex::Recursive),
m_horizontalCount(0),
m_lineCount(0)
m_lineCount(0),
m_imageOK(false)
{
setObjectName("ATVMod");
@@ -319,7 +323,7 @@ void ATVMod::applyStandard()
switch(m_config.m_atvStd)
{
case ATVStdPAL525:
case ATVStdPAL525: // Follows PAL-M standard
m_pointsPerSync = (uint32_t) roundf(4.7f * m_pointsPerTU); // normal sync pulse (4.7/1.008 us)
m_pointsPerBP = (uint32_t) roundf(4.7f * m_pointsPerTU); // back porch (4.7/1.008 us)
m_pointsPerFP = (uint32_t) roundf(1.5f * m_pointsPerTU); // front porch (1.5/1.008 us)
@@ -329,16 +333,16 @@ void ATVMod::applyStandard()
m_nbLines = 525;
m_nbLines2 = 262;
m_nbImageLines = 510;
m_nbImageLines2 = 205;
m_nbImageLines2 = 255;
m_interlaced = true;
m_nbHorizPoints = 64 * m_pointsPerTU; // full line
m_nbBlankLines = 16;
m_pointsPerHBar = m_pointsPerImgLine / 6;
m_linesPerVBar = m_nbImageLines2 / 6;
m_hBarIncrement = m_spanLevel / 6.0f;
m_vBarIncrement = m_spanLevel / 6.0f;
m_nbBlankLines = 15; // yields 480 lines (255 - 15) * 2
m_pointsPerHBar = m_pointsPerImgLine / m_nbBars;
m_linesPerVBar = m_nbImageLines2 / m_nbBars;
m_hBarIncrement = m_spanLevel / (float) m_nbBars;
m_vBarIncrement = m_spanLevel / (float) m_nbBars;
break;
case ATVStdPAL625:
case ATVStdPAL625: // Follows PAL-B/G/H standard
default:
m_pointsPerSync = (uint32_t) roundf(4.7f * m_pointsPerTU); // normal sync pulse (4.7 us)
m_pointsPerBP = (uint32_t) roundf(4.7f * m_pointsPerTU); // back porch (4.7 us)
@@ -352,10 +356,25 @@ void ATVMod::applyStandard()
m_nbImageLines2 = 305;
m_interlaced = true;
m_nbHorizPoints = 64 * m_pointsPerTU; // full line
m_nbBlankLines = 16;
m_pointsPerHBar = m_pointsPerImgLine / 6;
m_linesPerVBar = m_nbImageLines2 / 6;
m_hBarIncrement = m_spanLevel / 6.0f;
m_vBarIncrement = m_spanLevel / 6.0f;
m_nbBlankLines = 17; // yields 576 lines (305 - 17) * 2
m_pointsPerHBar = m_pointsPerImgLine / m_nbBars;
m_linesPerVBar = m_nbImageLines2 / m_nbBars;
m_hBarIncrement = m_spanLevel / (float) m_nbBars;
m_vBarIncrement = m_spanLevel / (float) m_nbBars;
}
}
void ATVMod::openImage(QString& fileName)
{
cv::Mat tmpImage = cv::imread(qPrintable(fileName), CV_LOAD_IMAGE_GRAYSCALE);
m_imageOK = tmpImage.data != 0;
if (m_imageOK)
{
float fy = (m_nbImageLines - 2*m_nbBlankLines) / (float) tmpImage.rows;
float fx = m_pointsPerImgLine / (float) tmpImage.cols;
cv::resize(tmpImage, m_image, cv::Size(), fx, fy);
qDebug("ATVMod::openImage: %d x %d -> %d x %d", tmpImage.cols, tmpImage.rows, m_image.cols, m_image.rows);
// later: image.at<char>(49,39);
}
}