mirror of
https://github.com/PaddlePaddle/FastDeploy.git
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84 lines
2.6 KiB
Python
84 lines
2.6 KiB
Python
"""
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# Copyright (c) 2025 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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import io
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import os
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from tempfile import NamedTemporaryFile as ntf
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import decord
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try:
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# moviepy 1.0
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import moviepy.editor as mp
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except:
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# moviepy 2.0
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import moviepy as mp
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def is_gif(data: bytes) -> bool:
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"""
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check if a bytes is a gif based on the magic head
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"""
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return data[:6] in (b"GIF87a", b"GIF89a")
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class VideoReaderWrapper(decord.VideoReader):
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"""
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Solving memory leak bug
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https://github.com/dmlc/decord/issues/208
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"""
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def __init__(self, video_path, *args, **kwargs):
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with ntf(delete=True, suffix=".gif") as gif_file:
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gif_input = None
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self.original_file = None
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if isinstance(video_path, str):
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self.original_file = video_path
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if video_path.lower().endswith(".gif"):
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gif_input = video_path
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elif isinstance(video_path, bytes):
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if is_gif(video_path):
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gif_file.write(video_path)
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gif_input = gif_file.name
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elif isinstance(video_path, io.BytesIO):
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video_path.seek(0)
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tmp_bytes = video_path.read()
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video_path.seek(0)
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if is_gif(tmp_bytes):
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gif_file.write(tmp_bytes)
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gif_input = gif_file.name
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if gif_input is not None:
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clip = mp.VideoFileClip(gif_input)
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mp4_file = ntf(delete=False, suffix=".mp4")
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clip.write_videofile(mp4_file.name, verbose=False, logger=None)
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clip.close()
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video_path = mp4_file.name
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self.original_file = video_path
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super().__init__(video_path, *args, **kwargs)
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self.seek(0)
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def __getitem__(self, key):
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frames = super().__getitem__(key)
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self.seek(0)
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return frames
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def __del__(self):
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if self.original_file and os.path.exists(self.original_file):
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os.remove(self.original_file)
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