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-rw-r--r--components/video.py74
1 files changed, 48 insertions, 26 deletions
diff --git a/components/video.py b/components/video.py
index de91264..67a96dd 100644
--- a/components/video.py
+++ b/components/video.py
@@ -1,12 +1,18 @@
from PIL import Image, ImageDraw
from PyQt4 import uic, QtGui, QtCore
-import os, subprocess, threading
+import os
+import subprocess
+import threading
from queue import PriorityQueue
from . import __base__
+
class Video:
'''Video Component Frame-Fetcher'''
- def __init__(self, ffmpeg, videoPath, width, height, frameRate, chunkSize, parent, loopVideo):
+ def __init__(
+ self, ffmpeg, videoPath, width, height,
+ frameRate, chunkSize, parent, loopVideo):
+
self.parent = parent
self.chunkSize = chunkSize
self.size = (width, height)
@@ -27,15 +33,18 @@ class Video:
'-filter:v', 'scale='+str(width)+':'+str(height),
'-vcodec', 'rawvideo', '-',
]
-
+
self.frameBuffer = PriorityQueue()
self.frameBuffer.maxsize = int(frameRate)
self.finishedFrames = {}
-
- self.thread = threading.Thread(target=self.fillBuffer, name=self.__doc__)
+
+ self.thread = threading.Thread(
+ target=self.fillBuffer,
+ name=self.__doc__
+ )
self.thread.daemon = True
self.thread.start()
-
+
def frame(self, num):
while True:
if num in self.finishedFrames:
@@ -44,9 +53,12 @@ class Video:
i, image = self.frameBuffer.get()
self.finishedFrames[i] = image
self.frameBuffer.task_done()
-
- def fillBuffer(self):
- self.pipe = subprocess.Popen(self.command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, bufsize=10**8)
+
+ def fillBuffer(self):
+ self.pipe = subprocess.Popen(
+ self.command, stdout=subprocess.PIPE,
+ stderr=subprocess.DEVNULL, bufsize=10**8
+ )
while True:
if self.parent.canceled:
break
@@ -58,26 +70,29 @@ class Video:
continue
self.currentFrame = self.pipe.stdout.read(self.chunkSize)
- #print('creating frame #%s' % str(self.frameNo))
if len(self.currentFrame) != 0:
self.frameBuffer.put((self.frameNo, self.currentFrame))
self.lastFrame = self.currentFrame
+
class Component(__base__.Component):
'''Video'''
def widget(self, parent):
self.parent = parent
self.settings = parent.settings
- page = uic.loadUi(os.path.join(os.path.dirname(os.path.realpath(__file__)), 'video.ui'))
+ page = uic.loadUi(os.path.join(
+ os.path.dirname(os.path.realpath(__file__)),
+ 'video.ui'
+ ))
self.videoPath = ''
self.x = 0
self.y = 0
self.loopVideo = False
-
+
page.lineEdit_video.textChanged.connect(self.update)
page.pushButton_video.clicked.connect(self.pickVideo)
page.checkBox_loop.stateChanged.connect(self.update)
-
+
self.page = page
return page
@@ -85,46 +100,50 @@ class Component(__base__.Component):
self.videoPath = self.page.lineEdit_video.text()
self.loopVideo = self.page.checkBox_loop.isChecked()
self.parent.drawPreview()
-
+
def previewRender(self, previewWorker):
width = int(previewWorker.core.settings.value('outputWidth'))
height = int(previewWorker.core.settings.value('outputHeight'))
self.chunkSize = 4*width*height
frame = self.getPreviewFrame(width, height)
if not frame:
- return Image.new("RGBA", (width, height),(0,0,0,0))
+ return Image.new("RGBA", (width, height), (0, 0, 0, 0))
else:
return frame
-
+
def preFrameRender(self, **kwargs):
super().preFrameRender(**kwargs)
width = int(self.worker.core.settings.value('outputWidth'))
height = int(self.worker.core.settings.value('outputHeight'))
self.chunkSize = 4*width*height
- self.video = Video(self.parent.core.FFMPEG_BIN, self.videoPath,
+ self.video = Video(
+ self.parent.core.FFMPEG_BIN, self.videoPath,
width, height, self.settings.value("outputFrameRate"),
- self.chunkSize, self.parent, self.loopVideo)
-
+ self.chunkSize, self.parent, self.loopVideo
+ )
+
def frameRender(self, moduleNo, arrayNo, frameNo):
return self.video.frame(frameNo)
def loadPreset(self, pr):
self.page.lineEdit_video.setText(pr['video'])
-
+
def savePreset(self):
return {
- 'video' : self.videoPath,
+ 'video': self.videoPath,
}
-
+
def pickVideo(self):
imgDir = self.settings.value("backgroundDir", os.path.expanduser("~"))
- filename = QtGui.QFileDialog.getOpenFileName(self.page,
- "Choose Video", imgDir, "Video Files (*.mp4 *.mov)")
+ filename = QtGui.QFileDialog.getOpenFileName(
+ self.page, "Choose Video",
+ imgDir, "Video Files (*.mp4 *.mov)"
+ )
if filename:
self.settings.setValue("backgroundDir", os.path.dirname(filename))
self.page.lineEdit_video.setText(filename)
self.update()
-
+
def getPreviewFrame(self, width, height):
if not self.videoPath or not os.path.exists(self.videoPath):
return
@@ -139,7 +158,10 @@ class Component(__base__.Component):
'-ss', '90',
'-vframes', '1',
]
- pipe = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, bufsize=10**8)
+ pipe = subprocess.Popen(
+ command, stdout=subprocess.PIPE,
+ stderr=subprocess.DEVNULL, bufsize=10**8
+ )
byteFrame = pipe.stdout.read(self.chunkSize)
image = Image.frombytes('RGBA', (width, height), byteFrame)
pipe.stdout.close()