说明
视频剪辑时需要为视频添加字幕，添加字幕方法之一：根据字幕文本文件批量生成透明底只有字幕内容的图片文件，如下图，然后将这些图片文件添加到视频剪辑软件轨道中。
于是用pillow这Python图片工具库执行本次批量生成工作。
前提
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pip intall pillow |
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from PIL import Image, ImageDraw, ImageFontimport osimageWidth, imageHeight = 1920, 1080fontsFolderPath = 'C:\\Users\\Jallen\\AppData\\Local\\Microsoft\\Windows\\Fonts'fontFilePath = os.path.join(fontsFolderPath, 'Alibaba-PuHuiTi-Regular.otf')def test(): im = Image.new('RGBA', (imageWidth, imageHeight)) draw = ImageDraw.Draw(im) text='你好，字体' alibabaFont = ImageFont.truetype(fontFilePath, 50) textSize = alibabaFont.getsize(text) startX = (imageWidth - textSize[0]) / 2.0 startY = (imageHeight - textSize[1]) / 2.0 draw.text((startX, startY), text, fill='white', font=alibabaFont, stroke_width=1, stroke_fill='black') im.save('test.png')def makeImageWithOneLine(imWidth, imHeight, textY, text, imFileName, fontSize=50): im = Image.new('RGBA', (imWidth, imHeight)) draw = ImageDraw.Draw(im) alibabaFont = ImageFont.truetype(fontFilePath, fontSize) textSize = alibabaFont.getsize(text) startX = (imWidth - textSize[0]) / 2.0 #水平居中 startY = textY#(imHeight - textSize[1]) / 2.0 draw.text((startX, startY), text, fill='white', font=alibabaFont, stroke_width=1, stroke_fill='black') im.save(imFileName)def makeImageWithTwoLines(imWidth, imHeight, textY, text1, text2, imFileName, fontSize1=50, fontSize2=50): im = Image.new('RGBA', (imWidth, imHeight)) draw = ImageDraw.Draw(im) alibabaFont1 = ImageFont.truetype(fontFilePath, fontSize1)#如有必要，可缓存起来 alibabaFont2 = ImageFont.truetype(fontFilePath, fontSize2) textSize1 = alibabaFont1.getsize(text1) textSize2 = alibabaFont2.getsize(text2) startX1 = (imWidth - textSize1[0]) / 2.0 #水平居中 startY1 = textY#(imHeight - textSize1[1]) / 2.0 startX2 = (imWidth - textSize2[0]) / 2.0 startY2 = startY1 + textSize1[1] draw.text((startX1, startY1), text1, fill='white', font=alibabaFont1, stroke_width=1, stroke_fill='black') draw.text((startX2, startY2), text2, fill='white', font=alibabaFont2, stroke_width=1, stroke_fill='black') im.save(imFileName)if __name__ == '__main__': #test() inFile = open("in/a.txt", encoding="utf-8")#字幕文件 count = 0 for line in inFile.readlines(): en, ch = line.split("/") print(line) #makeImageWithOneLine(imageWidth, imageHeight, 1000, en, "out/subtitle_%d.png" % count) makeImageWithTwoLines(imageWidth, imageHeight, imageHeight - 130, en, ch, \ "out/subtitle_%d.png" % count, 60, 30) count += 1 #print(ch) |
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原文链接：https://blog.csdn.net/u011863024/article/details/124893579
