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

* 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
2025-11-23 04:22:55 -06:00 · 2024-08-08 17:12:13 +00:00 · 2024-08-08 17:12:13 +00:00 · f77005128a
commit f77005128a
parent 94c615d417
36 changed files with 588 additions and 215 deletions
--- a/internal/media/test/birdnest-thumbnail.webp
+++ b/internal/media/test/birdnest-thumbnail.webp
--- a/internal/media/test/longer-mp4-thumbnail.webp
+++ b/internal/media/test/longer-mp4-thumbnail.webp
--- a/internal/media/test/test-jpeg-thumbnail.jpeg
+++ b/internal/media/test/test-jpeg-thumbnail.jpeg
--- a/internal/media/test/test-jpeg-thumbnail.webp
+++ b/internal/media/test/test-jpeg-thumbnail.webp
--- a/internal/media/test/test-mp4-thumbnail.webp
+++ b/internal/media/test/test-mp4-thumbnail.webp
--- a/internal/media/test/test-png-alphachannel-thumbnail.jpeg
+++ b/internal/media/test/test-png-alphachannel-thumbnail.jpeg
--- a/internal/media/test/test-png-alphachannel-thumbnail.webp
+++ b/internal/media/test/test-png-alphachannel-thumbnail.webp
--- a/internal/media/test/test-png-noalphachannel-thumbnail.jpeg
+++ b/internal/media/test/test-png-noalphachannel-thumbnail.jpeg
--- a/internal/media/test/test-png-noalphachannel-thumbnail.webp
+++ b/internal/media/test/test-png-noalphachannel-thumbnail.webp