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perf: optimize gif via gifsicle

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xz-dev 2024-07-16 21:56:00 +08:00
parent e38090e952
commit 47a98ba81b
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GPG key ID: A20912F811313E36
1 changed files with 19 additions and 3 deletions
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22
sticker/lib/util.py
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@ -16,6 +16,7 @@
from functools import partial
from io import BytesIO
import os.path
import subprocess
import json
import tempfile
import mimetypes
@ -55,7 +56,6 @@ def video_to_gif(data: bytes, mime: str) -> bytes:
temp.write(data)
temp.flush()
with tempfile.NamedTemporaryFile(suffix=ext) as temp_fixed:
import subprocess
print(".", end="", flush=True)
result = subprocess.run(["ffmpeg", "-y", "-i", temp.name, "-codec", "copy", temp_fixed.name],
capture_output=True)
@ -74,6 +74,19 @@ def video_to_gif(data: bytes, mime: str) -> bytes:
return gif.read()
def opermize_gif(data: bytes) -> bytes:
with tempfile.NamedTemporaryFile() as gif:
gif.write(data)
gif.flush()
# use gifsicle to optimize gif
result = subprocess.run(["gifsicle", "--batch", "--optimize=3", "--colors=256", gif.name],
capture_output=True)
if result.returncode != 0:
raise RuntimeError(f"Run gifsicle failed with code {result.returncode}, Error occurred:\n{result.stderr}")
gif.seek(0)
return gif.read()
def _convert_image(data: bytes, mimetype: str) -> (bytes, int, int):
image: Image.Image = Image.open(BytesIO(data))
new_file = BytesIO()
@ -140,8 +153,11 @@ def _convert_sticker(data: bytes) -> (bytes, str, int, int):
data = gif.read()
mimetype = "image/gif"
rlt = _convert_image(data, mimetype)
suffix = mimetypes.guess_extension(mimetype)
return rlt[0], mimetype, rlt[1], rlt[2]
data = rlt[0]
if mimetype == "image/gif":
print(".", end="", flush=True)
data = opermize_gif(data)
return data, mimetype, rlt[1], rlt[2]
def convert_sticker(data: bytes) -> (bytes, str, int, int):