/
videosort.py
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videosort.py
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import cv2
import sys
import numpy as np
import argparse
import os
from PyQt5 import QtGui
from PyQt5 import QtCore
from PyQt5.QtMultimedia import QMediaPlaylist, QMediaPlayer, QMediaContent
from PyQt5.QtMultimediaWidgets import QGraphicsVideoItem
from PyQt5.QtWidgets import QWidget, QApplication, QMainWindow, QFileDialog, QMessageBox, QListWidgetItem, QVBoxLayout, QGraphicsScene, QGraphicsView
from mainwindow import Ui_MainWindow
from threading import Thread
class VideoSortApp(QMainWindow, Ui_MainWindow, QWidget):
def __init__(self):
super(VideoSortApp, self).__init__()
self.setupUi(self)
self.filename = None
self.directory = None
self.sort.setEnabled(False)
self.fileOpen.clicked.connect(self.fileDialog)
self.dirOpen.clicked.connect(self.folderDialog)
self.sort.clicked.connect(self.sortVideo)
self.results.setViewMode(self.results.IconMode)
self.results.setResizeMode(self.results.Adjust)
self.features = []
self.sorted = None
#player properties
self.player = QMediaPlayer(None, QMediaPlayer.VideoSurface)
self.playlist = QMediaPlaylist(self.player)
self.videoItem = QGraphicsVideoItem()
self.videoItem.setSize(QtCore.QSizeF(640, 480))
scene = QGraphicsScene(self)
scene.addItem(self.videoItem)
self.graphicsView.setScene(scene)
self.player.setVideoOutput(self.videoItem)
self.graphicsView.resize(640,480)
self.graphicsView.show()
self.results.itemDoubleClicked.connect(self.seekVideo)
self.videoLoaded = False
def sizeHint(self):
return QtCore.QSize(640,480)
def fileDialog(self):
dialog = QFileDialog()
if dialog.getOpenFileName:
self.filename = dialog.getOpenFileName()[0]
self.sort.setEnabled(True)
def folderDialog(self):
dialog = QFileDialog()
if dialog.getExistingDirectory:
self.directory = dialog.getExistingDirectory()
self.sort.setEnabled(True)
def sortVideo(self):
dialog = QFileDialog()
folder = dialog.getExistingDirectory(self, 'Select output directory for thumbnail images')
if folder:
if self.filename:
self.getThread = VideoSort(self.filename, folder, 'frame')
#self.results.setIconSize(QtCore.QSize(self.getThread.thumbInfo['resolution'][0], self.getThread.thumbInfo['resolution'][1]))
#slot
self.getThread.resultsSignal.connect(self.setFeatures)
self.getThread.start()
self.player.setMedia(QMediaContent(QtCore.QUrl.fromLocalFile(self.filename)))
self.currentMedia = self.filename
if self.directory:
formatList = ['.mp4', '.mov', '.mkv', '.avi']
for dirname, dirnames, filenames in os.walk(self.directory):
supportedFiles = [os.path.abspath(os.path.join(dirname, path)) for path in filenames if os.path.splitext(path)[1] in formatList]
for filename in supportedFiles:
self.getThread = VideoSort(filename, folder, os.path.splitext(filename.split('/')[-1])[0])
self.getThread.resultsSignal.connect(self.setFeatures)
self.getThread.start()
self.player.setMedia(QMediaContent(QtCore.QUrl.fromLocalFile(filename)))
#Just set the last file as the current file
self.player.setMedia(QMediaContent(QtCore.QUrl.fromLocalFile(filename)))
self.currentMedia = filename
def setFeatures(self, features):
for feature in features:
self.features.append(feature)
self.hue.toggled.connect(self.displayResults)
self.saturation.toggled.connect(self.displayResults)
self.contours.toggled.connect(self.displayResults)
def displayResults(self):
self.results.clear()
if self.hue.isChecked():
sortedFeatures = sorted(self.features, key=lambda res: res['hue']['std'], reverse=False)
self.sorted = True
if self.saturation.isChecked():
sortedFeatures = sorted(self.features, key=lambda res: res['sat']['std'], reverse=False)
self.sorted = True
if self.contours.isChecked():
sortedFeatures = sorted(self.features, key=lambda res: res['contours']['area'], reverse=False)
self.sorted = True
if self.sorted:
for feature in sortedFeatures:
icon = QtGui.QIcon(feature['thumbnail'])
item = VideoListItem(icon, feature)
self.results.addItem(item)
def seekVideo(self, Qitem):
#Need to write a callback function to only seek once player is loaded - provide loading media graphic or progress bar
self.player.stop()
print self.player.mediaStatus()
if Qitem.feature['video'] != self.currentMedia:
self.player.setMedia(QMediaContent(QtCore.QUrl.fromLocalFile(Qitem.feature['video'])))
self.videoLoadProgress(self.player)
self.currentMedia = Qitem.feature['video']
else:
self.videoLoaded = True
if self.videoLoaded:
self.player.setPosition(Qitem.feature['milliseconds'])
self.player.play()
else:
#set up progress bar here, or loading text
def videoLoadProgress(self, QMediaPlayerObject):
self.videoStatus = VideoLoadStatus(QMediaPlayerObject)
self.videoStatus.videoLoaded.connect(self.getVideoStatus)
def getVideoStatus(self, status):
self.status = status
class VideoLoadStatus(QtCore.QThread, QtCore.QObject):
videoLoaded = QtCore.pyqtSignal(object)
def __init__(self, QMediaPlayerObject):
super(VideoLoadStatus, self).__init__()
self.mediaPlayer = QMediaPlayerObject
self.returnStatus = False
def run(self):
videoLoaded = self.checkVideoStatus()
self.videoLoaded.emit(videoLoaded)
def checkVideoStatus(self):
status = self.mediaPlayer.mediaStatus()
while True:
if status == 3:
self.returnStatus = True
return self.returnStatus
class VideoListItem(QListWidgetItem):
def __init__(self, icon, feature):
super(VideoListItem, self).__init__(icon, 'frame')
self.feature = feature
class VideoSort(QtCore.QThread, QtCore.QObject):
#design this to take a list of urls or single filename
resultsSignal = QtCore.pyqtSignal(object)
def __init__(self,inputFile, outPath, prefix):
super(VideoSort, self).__init__()
self.mediaObject = inputFile
self.video = cv2.VideoCapture(inputFile)
self.frames = int(self.video.get(cv2.cv.CV_CAP_PROP_FRAME_COUNT))
self.frameRate = self.video.get(cv2.cv.CV_CAP_PROP_FPS)
self.features = []
self.thumbInfo = {'resolution': \
(int(self.video.get(cv2.cv.CV_CAP_PROP_FRAME_WIDTH) / 4), \
int(self.video.get(cv2.cv.CV_CAP_PROP_FRAME_HEIGHT)/4)), \
'path': outPath, 'prefix': prefix }
def run(self):
sortedFeatures = self.getFeatures()
self.resultsSignal.emit(sortedFeatures)
def getFeatures(self):
queryRate = 100
queryFrame = int(self.frameRate * queryRate)
i = queryFrame
frameCount = 0
while queryFrame < self.frames:
self.video.set(cv2.cv.CV_CAP_PROP_POS_FRAMES, queryFrame)
ret, frame = self.video.read()
if ret == True:
queryMilliseconds = (queryFrame / self.frameRate) * 1000
thumbPath = self.saveThumb(frame, frameCount)
res = {'video': self.mediaObject, 'milliseconds': queryMilliseconds, \
'frame': queryFrame, 'thumbnail': thumbPath}
res['hue'] = self.computeHist(frame,0)
res['sat'] = self.computeHist(frame,1)
res['contours'] = self.getContours(frame)
print res
self.features.append(res)
else:
self.video.release()
break
queryFrame += i
frameCount += 1
return self.features
def computeHist(self,frame,channel):
resultsHist = {}
hsvFrame = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
hist = cv2.calcHist([hsvFrame],[channel], None,[128],[0,256])
hist = np.array(cv2.normalize(hist).flatten())
resultsHist['mean'] = np.mean(hist)
resultsHist['std'] = np.std(hist)
return resultsHist
def getContours(self, frame):
resultsContours = {}
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
edges = cv2.Canny(gray,30,570,apertureSize = 3)
contours, h = cv2.findContours(edges,1,2)
cArea = np.array([cv2.contourArea(contour) for contour in contours])
resultsContours['area'] = np.std(cArea)
resultsContours['nContours'] = len(contours)
return resultsContours
def saveThumb(self, frame, frameCount):
thumb = cv2.resize(frame, self.thumbInfo['resolution'], interpolation=cv2.INTER_AREA)
output = "{}/{}{:d}.png".format(self.thumbInfo['path'],self.thumbInfo['prefix'],frameCount)
cv2.imwrite(output, thumb)
return output
if __name__ == "__main__":
#Set up GUI
calc = QApplication(sys.argv)
window = VideoSortApp()
window.setWindowTitle('Video Sorter')
window.show()
sys.exit(calc.exec_())