12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970 |
- from PIL import Image
- import io,os,sys
- import logging
- logging.basicConfig(format='%(asctime)s - %(pathname)s[line:%(lineno)d] - %(levelname)s: %(message)s',level=logging.INFO)
- def analyzeANIFile(filePath):
- with open(filePath,'rb') as f:
- if f.read(4) != b'RIFF':
- return {"code":-1,"msg":"File is not a ANI File!"}
- logging.debug('文件头检查完成!')
- fileSize = int.from_bytes(f.read(4), byteorder='little', signed=False)
- # if os.path.getsize(filePath) != fileSize:
- # return {"code":-2,"msg":"File is damaged!"}
- logging.debug('文件长度检查完成!')
- if f.read(4) != b'ACON':
- return {"code":-1,"msg":"File is not a ANI File!"}
- logging.debug('魔数检查完成!')
- frameRate = (1/60)*1000
- while(True):
- chunkName = f.read(4)
- if chunkName == b'LIST':
- break
- chunkSize = int.from_bytes(f.read(4), byteorder='little', signed=False)
- if chunkName.lower() == b'rate':
- logging.debug('发现自定义速率!')
- frameRate = frameRate * int.from_bytes(f.read(4), byteorder='little', signed=False)
- logging.warning('发现自定义速率!由于GIF限制,将取第一帧与第二帧的速率作为整体速率!')
- f.read(chunkSize - 4)
- else:
- logging.debug('发现自定义Chunk!')
- f.read(chunkSize)
- listChunkSize = int.from_bytes(f.read(4), byteorder='little', signed=False)
- if f.read(4) != b'fram':
- return {"code":-3,"msg":"File not a ANI File!(No Frames)"}
- logging.debug('frame头检查完成!')
- frameList = []
- nowSize = 4
- while(nowSize < listChunkSize):
- if f.read(4) != b'icon':
- return {"code":-4,"msg":"File not a ANI File!(Other Kind Frames)"}
- nowSize += 4
- subChunkSize = int.from_bytes(f.read(4), byteorder='little', signed=False)
- nowSize += 4
- frameList.append(f.read(subChunkSize))
- nowSize += subChunkSize
- return {"code":0,"msg":frameList,"frameRate":frameRate}
- if __name__ == '__main__':
- OUTPUT_SIZE = (48,48)
- if len(sys.argv) < 2:
- logging.fatal("Usage:python ani2spritesheet.py <inputFile> <outputFile,Option>")
- else:
- res = analyzeANIFile(sys.argv[1])
- GIFframes = []
- if res["code"] == 0:
- logging.info('ANI文件分析完成,帧提取完成!')
- output = Image.new("RGBA", (OUTPUT_SIZE[0], OUTPUT_SIZE[1] * len(res["msg"])))
- for frameIndex in range(len(res["msg"])):
- frameImage = Image.open(io.BytesIO(res["msg"][frameIndex]),formats=['cur']).convert('RGBA')
- extracted_frame = frameImage.resize(OUTPUT_SIZE)
- position = (0, OUTPUT_SIZE[0] * frameIndex)
- output.paste(extracted_frame, position)
- if(len(sys.argv) >= 3):
- output.save(sys.argv[2],format="PNG")
- else:
- output.save(f"{sys.argv[1].strip('.ani')}.png",format="PNG")
- logging.info('SpriteSheet生成完成!')
- else:
- logging.fatal(res["msg"])
|