1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
from PIL import Image, ImageDraw
from PyQt4 import uic, QtGui, QtCore
import os, subprocess
import numpy
from . import __base__
class Component(__base__.Component):
'''Video'''
def __init__(self):
super().__init__()
self.working = False
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'))
self.videoPath = ''
self.x = 0
self.y = 0
page.lineEdit_video.textChanged.connect(self.update)
page.pushButton_video.clicked.connect(self.pickVideo)
self.page = page
return page
def update(self):
self.videoPath = self.page.lineEdit_video.text()
self.parent.drawPreview()
def previewRender(self, previewWorker):
self.width = int(previewWorker.core.settings.value('outputWidth'))
self.height = int(previewWorker.core.settings.value('outputHeight'))
frame1 = self.getPreviewFrame()
if not hasattr(self, 'staticFrame') or not self.working and frame1:
frame = Image.new("RGBA", (self.width, self.height), (0, 0, 0, 0))
if frame1:
im = Image.open(frame1)
frame.paste(im)
if not self.working:
self.staticFrame = frame
return self.staticFrame
def preFrameRender(self, **kwargs):
super().preFrameRender(**kwargs)
self.width = int(self.worker.core.settings.value('outputWidth'))
self.height = int(self.worker.core.settings.value('outputHeight'))
self.working = True
self.frames = self.getVideoFrames()
def frameRender(self, moduleNo, arrayNo, frameNo):
# don't make a new frame
if not self.working:
return self.staticFrame
byteFrame = self.frames.stdout.read(self.chunkSize)
if len(byteFrame) == 0:
self.working = False
self.frames.kill()
return self.staticFrame
# make a new frame
width = self.width
height = self.height
image = Image.frombytes('RGBA', (width, height), byteFrame)
self.staticFrame = image
return self.staticFrame
def loadPreset(self, pr):
self.page.lineEdit_video.setText(pr['video'])
def savePreset(self):
return {
'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)")
if filename:
self.settings.setValue("backgroundDir", os.path.dirname(filename))
self.page.lineEdit_video.setText(filename)
self.update()
def getPreviewFrame(self):
if not self.videoPath:
return
name = os.path.basename(self.videoPath).split('.', 1)[0]
filename = 'preview%s.jpg' % name
if os.path.exists(os.path.join(self.parent.core.tempDir, filename)):
# no, we don't need a new preview frame
return False
# get a preview frame
subprocess.call( \
'%s -i "%s" -y %s %s "%s"' % ( \
self.parent.core.FFMPEG_BIN,
self.videoPath,
'-ss 10 -vframes 1',
'-filter:v scale='+str(self.width)+':'+str(self.height),
os.path.join(self.parent.core.tempDir, filename)
),
shell=True
)
print('### Got Preview Frame From %s ###' % name)
return os.path.join(self.parent.core.tempDir, filename)
def getVideoFrames(self):
if not self.videoPath:
return
command = [
self.parent.core.FFMPEG_BIN,
'-thread_queue_size', '512',
'-i', self.videoPath,
'-f', 'image2pipe',
'-pix_fmt', 'rgba',
'-filter:v', 'scale='+str(self.width)+':'+str(self.height),
'-vcodec', 'rawvideo', '-',
]
# pipe in video frames from ffmpeg
in_pipe = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.DEVNULL, bufsize=10**8)
#width, height = self.realSize
self.chunkSize = 4*self.width*self.height
return in_pipe
def resize(self, im):
if im.size != (self.width, self.height):
im = im.resize((self.width, self.height), Image.ANTIALIAS)
return im
|
