Adding to my project
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Where in this code (my project) I can add a 2 frames in down the Histogram (color blue)?
In two the frames I want to write something.
The code building a media player.this is a code:
from PyQt5.QtCore import (pyqtSignal, pyqtSlot, Q_ARG, QAbstractItemModel,
QFileInfo, qFuzzyCompare, QMetaObject, QModelIndex, QObject, Qt,
QThread, QTime, QUrl)
from PyQt5.QtGui import QColor, qGray, QImage, QPainter, QPalette
from PyQt5.QtMultimedia import (QAbstractVideoBuffer, QMediaContent,
QMediaMetaData, QMediaPlayer, QMediaPlaylist, QVideoFrame, QVideoProbe)
from PyQt5.QtMultimediaWidgets import QVideoWidget
from PyQt5.QtWidgets import (QApplication, QComboBox, QDialog, QFileDialog,
QFormLayout, QHBoxLayout, QLabel, QListView, QMessageBox, QPushButton,
QSizePolicy, QSlider, QStyle, QToolButton, QVBoxLayout, QWidget)class VideoWidget(QVideoWidget):
def __init__(self, parent=None): super(VideoWidget, self).__init__(parent) self.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored) p = self.palette() p.setColor(QPalette.Window, Qt.black) self.setPalette(p) self.setAttribute(Qt.WA_OpaquePaintEvent) def keyPressEvent(self, event): if event.key() == Qt.Key_Escape and self.isFullScreen(): self.setFullScreen(False) event.accept() elif event.key() == Qt.Key_Enter and event.modifiers() & Qt.Key_Alt: self.setFullScreen(not self.isFullScreen()) event.accept() else: super(VideoWidget, self).keyPressEvent(event) def mouseDoubleClickEvent(self, event): self.setFullScreen(not self.isFullScreen()) event.accept()class PlaylistModel(QAbstractItemModel):
Title, ColumnCount = range(2) def __init__(self, parent=None): super(PlaylistModel, self).__init__(parent) self.m_playlist = None def rowCount(self, parent=QModelIndex()): return self.m_playlist.mediaCount() if self.m_playlist is not None and not parent.isValid() else 0 def columnCount(self, parent=QModelIndex()): return self.ColumnCount if not parent.isValid() else 0 def index(self, row, column, parent=QModelIndex()): return self.createIndex(row, column) if self.m_playlist is not None and not parent.isValid() and row >= 0 and row < self.m_playlist.mediaCount() and column >= 0 and column < self.ColumnCount else QModelIndex() def parent(self, child): return QModelIndex() def data(self, index, role=Qt.DisplayRole): if index.isValid() and role == Qt.DisplayRole: if index.column() == self.Title: location = self.m_playlist.media(index.row()).canonicalUrl() return QFileInfo(location.path()).fileName() return self.m_data[index] return None def playlist(self): return self.m_playlist def setPlaylist(self, playlist): if self.m_playlist is not None: self.m_playlist.mediaAboutToBeInserted.disconnect( self.beginInsertItems) self.m_playlist.mediaInserted.disconnect(self.endInsertItems) self.m_playlist.mediaAboutToBeRemoved.disconnect( self.beginRemoveItems) self.m_playlist.mediaRemoved.disconnect(self.endRemoveItems) self.m_playlist.mediaChanged.disconnect(self.changeItems) self.beginResetModel() self.m_playlist = playlist if self.m_playlist is not None: self.m_playlist.mediaAboutToBeInserted.connect( self.beginInsertItems) self.m_playlist.mediaInserted.connect(self.endInsertItems) self.m_playlist.mediaAboutToBeRemoved.connect( self.beginRemoveItems) self.m_playlist.mediaRemoved.connect(self.endRemoveItems) self.m_playlist.mediaChanged.connect(self.changeItems) self.endResetModel() def beginInsertItems(self, start, end): self.beginInsertRows(QModelIndex(), start, end) def endInsertItems(self): self.endInsertRows() def beginRemoveItems(self, start, end): self.beginRemoveRows(QModelIndex(), start, end) def endRemoveItems(self): self.endRemoveRows() def changeItems(self, start, end): self.dataChanged.emit(self.index(start, 0), self.index(end, self.ColumnCount))class PlayerControls(QWidget):
play = pyqtSignal() pause = pyqtSignal() stop = pyqtSignal() next = pyqtSignal() previous = pyqtSignal() changeVolume = pyqtSignal(int) changeMuting = pyqtSignal(bool) changeRate = pyqtSignal(float) def __init__(self, parent=None): super(PlayerControls, self).__init__(parent) self.playerState = QMediaPlayer.StoppedState self.playerMuted = False self.playButton = QToolButton(clicked=self.playClicked) self.playButton.setIcon(self.style().standardIcon(QStyle.SP_MediaPlay)) self.stopButton = QToolButton(clicked=self.stop) self.stopButton.setIcon(self.style().standardIcon(QStyle.SP_MediaStop)) self.stopButton.setEnabled(False) self.nextButton = QToolButton(clicked=self.next) self.nextButton.setIcon( self.style().standardIcon(QStyle.SP_MediaSkipForward)) self.previousButton = QToolButton(clicked=self.previous) self.previousButton.setIcon( self.style().standardIcon(QStyle.SP_MediaSkipBackward)) self.muteButton = QToolButton(clicked=self.muteClicked) self.muteButton.setIcon( self.style().standardIcon(QStyle.SP_MediaVolume)) self.volumeSlider = QSlider(Qt.Horizontal, sliderMoved=self.changeVolume) self.volumeSlider.setRange(0, 100) self.rateBox = QComboBox(activated=self.updateRate) self.rateBox.addItem("0.5x", 0.5) self.rateBox.addItem("1.0x", 1.0) self.rateBox.addItem("2.0x", 2.0) self.rateBox.setCurrentIndex(1) layout = QHBoxLayout() layout.setContentsMargins(0, 0, 0, 0) layout.addWidget(self.stopButton) layout.addWidget(self.previousButton) layout.addWidget(self.playButton) layout.addWidget(self.nextButton) layout.addWidget(self.muteButton) layout.addWidget(self.volumeSlider) layout.addWidget(self.rateBox) self.setLayout(layout) def state(self): return self.playerState def setState(self,state): if state != self.playerState: self.playerState = state if state == QMediaPlayer.StoppedState: self.stopButton.setEnabled(False) self.playButton.setIcon( self.style().standardIcon(QStyle.SP_MediaPlay)) elif state == QMediaPlayer.PlayingState: self.stopButton.setEnabled(True) self.playButton.setIcon( self.style().standardIcon(QStyle.SP_MediaPause)) elif state == QMediaPlayer.PausedState: self.stopButton.setEnabled(True) self.playButton.setIcon( self.style().standardIcon(QStyle.SP_MediaPlay)) def volume(self): return self.volumeSlider.value() def setVolume(self, volume): self.volumeSlider.setValue(volume) def isMuted(self): return self.playerMuted def setMuted(self, muted): if muted != self.playerMuted: self.playerMuted = muted self.muteButton.setIcon( self.style().standardIcon( QStyle.SP_MediaVolumeMuted if muted else QStyle.SP_MediaVolume)) def playClicked(self): if self.playerState in (QMediaPlayer.StoppedState, QMediaPlayer.PausedState): self.play.emit() elif self.playerState == QMediaPlayer.PlayingState: self.pause.emit() def muteClicked(self): self.changeMuting.emit(not self.playerMuted) def playbackRate(self): return self.rateBox.itemData(self.rateBox.currentIndex()) def setPlaybackRate(self, rate): for i in range(self.rateBox.count()): if qFuzzyCompare(rate, self.rateBox.itemData(i)): self.rateBox.setCurrentIndex(i) return self.rateBox.addItem("%dx" % rate, rate) self.rateBox.setCurrentIndex(self.rateBox.count() - 1) def updateRate(self): self.changeRate.emit(self.playbackRate())class FrameProcessor(QObject):
histogramReady = pyqtSignal(list) @pyqtSlot(QVideoFrame, int) def processFrame(self, frame, levels): histogram = [0.0] * levels if levels and frame.map(QAbstractVideoBuffer.ReadOnly): pixelFormat = frame.pixelFormat() if pixelFormat == QVideoFrame.Format_YUV420P or pixelFormat == QVideoFrame.Format_NV12: # Process YUV data. bits = frame.bits() for idx in range(frame.height() * frame.width()): histogram[(bits[idx] * levels) >> 8] += 1.0 else: imageFormat = QVideoFrame.imageFormatFromPixelFormat(pixelFormat) if imageFormat != QImage.Format_Invalid: # Process RGB data. image = QImage(frame.bits(), frame.width(), frame.height(), imageFormat) for y in range(image.height()): for x in range(image.width()): pixel = image.pixel(x, y) histogram[(qGray(pixel) * levels) >> 8] += 1.0 # Find the maximum value. maxValue = 0.0 for value in histogram: if value > maxValue: maxValue = value # Normalise the values between 0 and 1. if maxValue > 0.0: for i in range(len(histogram)): histogram[i] /= maxValue frame.unmap() self.histogramReady.emit(histogram)class HistogramWidget(QWidget):
def __init__(self, parent=None): super(HistogramWidget, self).__init__(parent) self.m_levels = 128 self.m_isBusy = False self.m_histogram = [] self.m_processor = FrameProcessor() self.m_processorThread = QThread() self.m_processor.moveToThread(self.m_processorThread) self.m_processor.histogramReady.connect(self.setHistogram) def __del__(self): self.m_processorThread.quit() self.m_processorThread.wait(10000) def setLevels(self, levels): self.m_levels = levels def processFrame(self, frame): if self.m_isBusy: return self.m_isBusy = True QMetaObject.invokeMethod(self.m_processor, 'processFrame', Qt.QueuedConnection, Q_ARG(QVideoFrame, frame), Q_ARG(int, self.m_levels)) @pyqtSlot(list) def setHistogram(self, histogram): self.m_isBusy = False self.m_histogram = list(histogram) self.update() def paintEvent(self, event): painter = QPainter(self) if len(self.m_histogram) == 0: painter.fillRect(0, 0, self.width(), self.height(), QColor.fromRgb(0, 0, 0)) return barWidth = self.width() / float(len(self.m_histogram)) for i, value in enumerate(self.m_histogram): h = value * self.height() # Draw the level. painter.fillRect(barWidth * i, self.height() - h, barWidth * (i + 1), self.height(), Qt.red) # Clear the rest of the control. painter.fillRect(barWidth * i, 0, barWidth * (i + 1), self.height() - h, Qt.black)class Player(QWidget):
fullScreenChanged = pyqtSignal(bool) def __init__(self, playlist, parent=None): super(Player, self).__init__(parent) self.colorDialog = None self.trackInfo = "" self.statusInfo = "" self.duration = 0 self.player = QMediaPlayer() self.playlist = QMediaPlaylist() self.player.setPlaylist(self.playlist) self.player.durationChanged.connect(self.durationChanged) self.player.positionChanged.connect(self.positionChanged) self.player.metaDataChanged.connect(self.metaDataChanged) self.playlist.currentIndexChanged.connect(self.playlistPositionChanged) self.player.mediaStatusChanged.connect(self.statusChanged) self.player.bufferStatusChanged.connect(self.bufferingProgress) self.player.videoAvailableChanged.connect(self.videoAvailableChanged) self.player.error.connect(self.displayErrorMessage) self.videoWidget = VideoWidget() self.player.setVideoOutput(self.videoWidget) self.playlistModel = PlaylistModel() self.playlistModel.setPlaylist(self.playlist) self.playlistView = QListView() self.playlistView.setModel(self.playlistModel) self.playlistView.setCurrentIndex( self.playlistModel.index(self.playlist.currentIndex(), 0)) self.playlistView.activated.connect(self.jump) self.slider = QSlider(Qt.Horizontal) self.slider.setRange(0, self.player.duration() / 1000) self.labelDuration = QLabel() self.slider.sliderMoved.connect(self.seek) self.labelHistogram = QLabel() self.labelHistogram.setText("Histogram:") self.histogram = HistogramWidget() histogramLayout = QHBoxLayout() histogramLayout.addWidget(self.labelHistogram) histogramLayout.addWidget(self.histogram, 1) self.probe = QVideoProbe() self.probe.videoFrameProbed.connect(self.histogram.processFrame) self.probe.setSource(self.player) openButton = QPushButton("Open", clicked=self.open) controls = PlayerControls() controls.setState(self.player.state()) controls.setVolume(self.player.volume()) controls.setMuted(controls.isMuted()) controls.play.connect(self.player.play) controls.pause.connect(self.player.pause) controls.stop.connect(self.player.stop) controls.next.connect(self.playlist.next) controls.previous.connect(self.previousClicked) controls.changeVolume.connect(self.player.setVolume) controls.changeMuting.connect(self.player.setMuted) controls.changeRate.connect(self.player.setPlaybackRate) controls.stop.connect(self.videoWidget.update) self.player.stateChanged.connect(controls.setState) self.player.volumeChanged.connect(controls.setVolume) self.player.mutedChanged.connect(controls.setMuted) self.fullScreenButton = QPushButton("FullScreen") self.fullScreenButton.setCheckable(True) self.colorButton = QPushButton("Color Options...") self.colorButton.setEnabled(False) self.colorButton.clicked.connect(self.showColorDialog) displayLayout = QHBoxLayout() displayLayout.addWidget(self.videoWidget, 2) displayLayout.addWidget(self.playlistView) controlLayout = QHBoxLayout() controlLayout.setContentsMargins(0, 0, 0, 0) controlLayout.addWidget(openButton) controlLayout.addStretch(1) controlLayout.addWidget(controls) controlLayout.addStretch(1) controlLayout.addWidget(self.fullScreenButton) controlLayout.addWidget(self.colorButton) layout = QVBoxLayout() layout.addLayout(displayLayout) hLayout = QHBoxLayout() hLayout.addWidget(self.slider) hLayout.addWidget(self.labelDuration) layout.addLayout(hLayout) layout.addLayout(controlLayout) layout.addLayout(histogramLayout) self.setLayout(layout) if not self.player.isAvailable(): QMessageBox.warning(self, "Service not available", "The QMediaPlayer object does not have a valid service.\n" "Please check the media service plugins are installed.") controls.setEnabled(False) self.playlistView.setEnabled(False) openButton.setEnabled(False) self.colorButton.setEnabled(False) self.fullScreenButton.setEnabled(False) self.metaDataChanged() self.addToPlaylist(playlist) def open(self): fileNames, _ = QFileDialog.getOpenFileNames(self, "Open Files") self.addToPlaylist(fileNames) def addToPlaylist(self, fileNames): for name in fileNames: fileInfo = QFileInfo(name) if fileInfo.exists(): url = QUrl.fromLocalFile(fileInfo.absoluteFilePath()) if fileInfo.suffix().lower() == 'm3u': self.playlist.load(url) else: self.playlist.addMedia(QMediaContent(url)) else: url = QUrl(name) if url.isValid(): self.playlist.addMedia(QMediaContent(url)) def durationChanged(self, duration): duration /= 1000 self.duration = duration self.slider.setMaximum(duration) def positionChanged(self, progress): progress /= 1000 if not self.slider.isSliderDown(): self.slider.setValue(progress) self.updateDurationInfo(progress) def metaDataChanged(self): if self.player.isMetaDataAvailable(): self.setTrackInfo("%s - %s" % ( self.player.metaData(QMediaMetaData.AlbumArtist), self.player.metaData(QMediaMetaData.Title))) def previousClicked(self): # Go to the previous track if we are within the first 5 seconds of # playback. Otherwise, seek to the beginning. if self.player.position() <= 5000: self.playlist.previous() else: self.player.setPosition(0) def jump(self, index): if index.isValid(): self.playlist.setCurrentIndex(index.row()) self.player.play() def playlistPositionChanged(self, position): self.playlistView.setCurrentIndex( self.playlistModel.index(position, 0)) def seek(self, seconds): self.player.setPosition(seconds * 1000) def statusChanged(self, status): self.handleCursor(status) if status == QMediaPlayer.LoadingMedia: self.setStatusInfo("Loading...") elif status == QMediaPlayer.StalledMedia: self.setStatusInfo("Media Stalled") elif status == QMediaPlayer.EndOfMedia: QApplication.alert(self) elif status == QMediaPlayer.InvalidMedia: self.displayErrorMessage() else: self.setStatusInfo("") def handleCursor(self, status): if status in (QMediaPlayer.LoadingMedia, QMediaPlayer.BufferingMedia, QMediaPlayer.StalledMedia): self.setCursor(Qt.BusyCursor) else: self.unsetCursor() def bufferingProgress(self, progress): self.setStatusInfo("Buffering %d%" % progress) def videoAvailableChanged(self, available): if available: self.fullScreenButton.clicked.connect( self.videoWidget.setFullScreen) self.videoWidget.fullScreenChanged.connect( self.fullScreenButton.setChecked) if self.fullScreenButton.isChecked(): self.videoWidget.setFullScreen(True) else: self.fullScreenButton.clicked.disconnect( self.videoWidget.setFullScreen) self.videoWidget.fullScreenChanged.disconnect( self.fullScreenButton.setChecked) self.videoWidget.setFullScreen(False) self.colorButton.setEnabled(available) def setTrackInfo(self, info): self.trackInfo = info if self.statusInfo != "": self.setWindowTitle("%s | %s" % (self.trackInfo, self.statusInfo)) else: self.setWindowTitle(self.trackInfo) def setStatusInfo(self, info): self.statusInfo = info if self.statusInfo != "": self.setWindowTitle("%s | %s" % (self.trackInfo, self.statusInfo)) else: self.setWindowTitle(self.trackInfo) def displayErrorMessage(self): self.setStatusInfo(self.player.errorString()) def updateDurationInfo(self, currentInfo): duration = self.duration if currentInfo or duration: currentTime = QTime((currentInfo/3600)%60, (currentInfo/60)%60, currentInfo%60, (currentInfo*1000)%1000) totalTime = QTime((duration/3600)%60, (duration/60)%60, duration%60, (duration*1000)%1000); format = 'hh:mm:ss' if duration > 3600 else 'mm:ss' tStr = currentTime.toString(format) + " / " + totalTime.toString(format) else: tStr = "" self.labelDuration.setText(tStr) def showColorDialog(self): if self.colorDialog is None: brightnessSlider = QSlider(Qt.Horizontal) brightnessSlider.setRange(-100, 100) brightnessSlider.setValue(self.videoWidget.brightness()) brightnessSlider.sliderMoved.connect( self.videoWidget.setBrightness) self.videoWidget.brightnessChanged.connect( brightnessSlider.setValue) contrastSlider = QSlider(Qt.Horizontal) contrastSlider.setRange(-100, 100) contrastSlider.setValue(self.videoWidget.contrast()) contrastSlider.sliderMoved.connect(self.videoWidget.setContrast) self.videoWidget.contrastChanged.connect(contrastSlider.setValue) hueSlider = QSlider(Qt.Horizontal) hueSlider.setRange(-100, 100) hueSlider.setValue(self.videoWidget.hue()) hueSlider.sliderMoved.connect(self.videoWidget.setHue) self.videoWidget.hueChanged.connect(hueSlider.setValue) saturationSlider = QSlider(Qt.Horizontal) saturationSlider.setRange(-100, 100) saturationSlider.setValue(self.videoWidget.saturation()) saturationSlider.sliderMoved.connect( self.videoWidget.setSaturation) self.videoWidget.saturationChanged.connect( saturationSlider.setValue) layout = QFormLayout() layout.addRow("Brightness", brightnessSlider) layout.addRow("Contrast", contrastSlider) layout.addRow("Hue", hueSlider) layout.addRow("Saturation", saturationSlider) button = QPushButton("Close") layout.addRow(button) self.colorDialog = QDialog(self) self.colorDialog.setWindowTitle("Color Options") self.colorDialog.setLayout(layout) button.clicked.connect(self.colorDialog.close) self.colorDialog.show()if name == 'main':
import sys app = QApplication(sys.argv) player = Player(sys.argv[1:]) player.show() sys.exit(app.exec_())
thank to helpers!!!
