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videorenderframecache: use hash-prefix directory structure

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Many file systems become inefficient with a lot of files in the same directory.
To solve this we use a semi-arbitrary system to split up all cache files into
several folders to keep things performant.
This commit is contained in:
itsmattkc
2020-02-24 12:34:16 +11:00
parent 2c16bb7c53
commit 9f17a23a42
1 changed files with 6 additions and 6 deletions
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app/render/backend/videorenderframecache.cpp
+6 -6
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@@ -103,11 +103,8 @@ const QMap<rational, QByteArray> &VideoRenderFrameCache::time_hash_map() const
return time_hash_map_;
}
QString VideoRenderFrameCache::CachePathName(const QByteArray &hash, const PixelFormat::Format& pix_fmt) const
QString VideoRenderFrameCache::CachePathName(const QByteArray& hash, const PixelFormat::Format& pix_fmt) const
{
QDir this_cache_dir = QDir(GetMediaCacheLocation());
this_cache_dir.mkpath(".");
QString ext;
if (pix_fmt == PixelFormat::PIX_FMT_RGBA8 || pix_fmt == PixelFormat::PIX_FMT_RGBA16U) {
@@ -117,7 +114,10 @@ QString VideoRenderFrameCache::CachePathName(const QByteArray &hash, const Pixel
ext = QStringLiteral("exr");
}
QString filename = QStringLiteral("%1.%2").arg(QString(hash.toHex()), ext);
QDir cache_dir(QDir(GetMediaCacheLocation()).filePath(QString(hash.left(1).toHex())));
cache_dir.mkpath(".");
return this_cache_dir.filePath(filename);
QString filename = QStringLiteral("%1.%2").arg(QString(hash.mid(1).toHex()), ext);
return cache_dir.filePath(filename);
}