mirror of
https://mikeslab.dix.asia/gogs/My-Mods/ANI2Cape.git
synced 2025-10-01 23:14:57 +00:00
84 lines
3.7 KiB
Python
84 lines
3.7 KiB
Python
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
|
||
readANIH = False
|
||
while(True):
|
||
chunkName = f.read(4)
|
||
if chunkName == b'LIST' and readANIH:
|
||
break
|
||
if chunkName == b'anih':
|
||
readANIH = True
|
||
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}
|
||
|
||
def CURPaletteFix(image):
|
||
# type: (Image.ImageFile.ImageFile) -> None
|
||
if (image.mode == 'P'):
|
||
palette = list(image.palette.getdata()[1])
|
||
for i in range(4, len(palette), 4):
|
||
if sum(palette[i:i + 3]) == 0:
|
||
continue
|
||
palette[i + 3] = 255
|
||
image.putpalette(palette, 'BGRA')
|
||
|
||
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'])
|
||
CURPaletteFix(frameImage)
|
||
extracted_frame = frameImage.convert('RGBA').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"])
|