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[performance] move thumbnail generation to go code where possible (#3183)

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* wrap thumbnailing code to handle generation natively where possible

* more code comments!

* add even more code comments!

* add code comments about blurhash generation

* maintain image rotation if contained in exif data

* move rotation before resizing

* ensure pix_fmt actually selected by ffprobe, check for alpha layer with gifs

* use linear instead of nearest-neighbour for resizing

* work with image "orientation" instead of "rotation". use default 75% quality for both webp and jpeg generation

* add header to new file

* use thumb extension when getting thumb mime type

* update test models and tests with new media processing

* add suggested code comments

* add note about thumbnail filter count reducing memory usage
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kim 2024-08-08 17:12:13 +00:00 • committed by GitHub
commit f77005128a
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36 changed files with 588 additions and 215 deletions
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4
internal/api/client/media/mediacreate_test.go
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@ -206,7 +206,7 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessful() {
Y: 0.5,
},
}, *attachmentReply.Meta)
suite.Equal("LcBzLU#6RkRn~qvzRjWF?urqV@jc", *attachmentReply.Blurhash)
suite.Equal("LjCGfG#6RkRn_NvzRjWF?urqV@a$", *attachmentReply.Blurhash)
suite.NotEmpty(attachmentReply.ID)
suite.NotEmpty(attachmentReply.URL)
suite.NotEmpty(attachmentReply.PreviewURL)
@ -291,7 +291,7 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessfulV2() {
Y: 0.5,
},
}, *attachmentReply.Meta)
suite.Equal("LcBzLU#6RkRn~qvzRjWF?urqV@jc", *attachmentReply.Blurhash)
suite.Equal("LjCGfG#6RkRn_NvzRjWF?urqV@a$", *attachmentReply.Blurhash)
suite.NotEmpty(attachmentReply.ID)
suite.Nil(attachmentReply.URL)
suite.NotEmpty(attachmentReply.PreviewURL)