michael/pyaudviz
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fixed empty preview frame bug

This commit is contained in:
tassaron 2017-06-06 08:55:22 -04:00
parent 6a1deb9b78
commit 6c78c96d80
1 changed files with 7 additions and 1 deletions
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8
components/video.py
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@ -90,7 +90,11 @@ class Component(__base__.Component):
width = int(previewWorker.core.settings.value('outputWidth'))
height = int(previewWorker.core.settings.value('outputHeight'))
self.chunkSize = 4*width*height
return self.getPreviewFrame(width, height)
frame = self.getPreviewFrame(width, height)
if not frame:
return Image.new("RGBA", (width, height),(0,0,0,0))
else:
return frame
def preFrameRender(self, **kwargs):
super().preFrameRender(**kwargs)
@ -122,6 +126,8 @@ class Component(__base__.Component):
self.update()
def getPreviewFrame(self, width, height):
if not self.videoPath or not os.path.exists(self.videoPath):
return
command = [
self.parent.core.FFMPEG_BIN,
'-thread_queue_size', '512',