stash/internal/manager/task_generate_preview.go
WithoutPants 5495d72849 File storage rewrite (#2676)
* Restructure data layer part 2 (#2599)
* Refactor and separate image model
* Refactor image query builder
* Handle relationships in image query builder
* Remove relationship management methods
* Refactor gallery model/query builder
* Add scenes to gallery model
* Convert scene model
* Refactor scene models
* Remove unused methods
* Add unit tests for gallery
* Add image tests
* Add scene tests
* Convert unnecessary scene value pointers to values
* Convert unnecessary pointer values to values
* Refactor scene partial
* Add scene partial tests
* Refactor ImagePartial
* Add image partial tests
* Refactor gallery partial update
* Add partial gallery update tests
* Use zero/null package for null values
* Add files and scan system
* Add sqlite implementation for files/folders
* Add unit tests for files/folders
* Image refactors
* Update image data layer
* Refactor gallery model and creation
* Refactor scene model
* Refactor scenes
* Don't set title from filename
* Allow galleries to freely add/remove images
* Add multiple scene file support to graphql and UI
* Add multiple file support for images in graphql/UI
* Add multiple file for galleries in graphql/UI
* Remove use of some deprecated fields
* Remove scene path usage
* Remove gallery path usage
* Remove path from image
* Move funscript to video file
* Refactor caption detection
* Migrate existing data
* Add post commit/rollback hook system
* Lint. Comment out import/export tests
* Add WithDatabase read only wrapper
* Prepend tasks to list
* Add 32 pre-migration
* Add warnings in release and migration notes
2022-09-06 07:03:42 +00:00

98 lines
2.6 KiB
Go

package manager
import (
"context"
"fmt"
"github.com/stashapp/stash/pkg/fsutil"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/models"
"github.com/stashapp/stash/pkg/scene/generate"
)
type GeneratePreviewTask struct {
Scene models.Scene
ImagePreview bool
Options generate.PreviewOptions
Overwrite bool
fileNamingAlgorithm models.HashAlgorithm
generator *generate.Generator
}
func (t *GeneratePreviewTask) GetDescription() string {
return fmt.Sprintf("Generating preview for %s", t.Scene.Path())
}
func (t *GeneratePreviewTask) Start(ctx context.Context) {
if !t.Overwrite && !t.required() {
return
}
ffprobe := instance.FFProbe
videoFile, err := ffprobe.NewVideoFile(t.Scene.Path())
if err != nil {
logger.Errorf("error reading video file: %v", err)
return
}
videoChecksum := t.Scene.GetHash(t.fileNamingAlgorithm)
if err := t.generateVideo(videoChecksum, videoFile.Duration); err != nil {
logger.Errorf("error generating preview: %v", err)
logErrorOutput(err)
return
}
if t.ImagePreview {
if err := t.generateWebp(videoChecksum); err != nil {
logger.Errorf("error generating preview webp: %v", err)
logErrorOutput(err)
}
}
}
func (t GeneratePreviewTask) generateVideo(videoChecksum string, videoDuration float64) error {
videoFilename := t.Scene.Path()
if err := t.generator.PreviewVideo(context.TODO(), videoFilename, videoDuration, videoChecksum, t.Options, true); err != nil {
logger.Warnf("[generator] failed generating scene preview, trying fallback")
if err := t.generator.PreviewVideo(context.TODO(), videoFilename, videoDuration, videoChecksum, t.Options, true); err != nil {
return err
}
}
return nil
}
func (t GeneratePreviewTask) generateWebp(videoChecksum string) error {
videoFilename := t.Scene.Path()
return t.generator.PreviewWebp(context.TODO(), videoFilename, videoChecksum)
}
func (t GeneratePreviewTask) required() bool {
sceneHash := t.Scene.GetHash(t.fileNamingAlgorithm)
videoExists := t.doesVideoPreviewExist(sceneHash)
imageExists := !t.ImagePreview || t.doesImagePreviewExist(sceneHash)
return !imageExists || !videoExists
}
func (t *GeneratePreviewTask) doesVideoPreviewExist(sceneChecksum string) bool {
if sceneChecksum == "" {
return false
}
videoExists, _ := fsutil.FileExists(instance.Paths.Scene.GetVideoPreviewPath(sceneChecksum))
return videoExists
}
func (t *GeneratePreviewTask) doesImagePreviewExist(sceneChecksum string) bool {
if sceneChecksum == "" {
return false
}
imageExists, _ := fsutil.FileExists(instance.Paths.Scene.GetWebpPreviewPath(sceneChecksum))
return imageExists
}