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MP4Clip 大文件解析阶段内存优化 #129

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hughfenghen opened this issue Jun 7, 2024 · 0 comments · May be fixed by #291
Open

MP4Clip 大文件解析阶段内存优化 #129

hughfenghen opened this issue Jun 7, 2024 · 0 comments · May be fixed by #291

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@hughfenghen
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hughfenghen commented Jun 7, 2024 •
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在 v0.9 中使用 opfs-tools 将视频文件临时写入 opfs，大幅降低了内存占用。

但加载非 segment mp4 资源时，因为是顺序读取二进制，且 moov 通常在文件末尾；
所以解析阶段，仍会将整个视频文件加载到内存，解析完成会自动释放内存，导致大文件解析阶段内存短暂、大幅增加。

解析 非 segment mp4 应该避免顺序读取二进制，而是优先加载解析 moov box。
@hughfenghen hughfenghen changed the title MP4Clip 内存优化 MP4Clip 大文件解析阶段内存优化 Jun 12, 2024
@wendraw wendraw mentioned this issue Jul 18, 2024
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@8zf 8zf mentioned this issue Aug 26, 2024
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@hughfenghen hughfenghen linked a pull request Oct 7, 2024 that will close this issue
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Refactor/parse mp4 bilibili/WebAV
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