stash/internal/manager/task_generate_screenshot.go

116 lines
2.5 KiB
Go

package manager
import (
"context"
"fmt"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/models"
"github.com/stashapp/stash/pkg/scene/generate"
)
type GenerateCoverTask struct {
repository models.Repository
Scene models.Scene
ScreenshotAt *float64
Overwrite bool
}
func (t *GenerateCoverTask) GetDescription() string {
return fmt.Sprintf("Generating cover for %s", t.Scene.GetTitle())
}
func (t *GenerateCoverTask) Start(ctx context.Context) {
scenePath := t.Scene.Path
r := t.repository
var required bool
if err := r.WithReadTxn(ctx, func(ctx context.Context) error {
required = t.required(ctx)
return t.Scene.LoadPrimaryFile(ctx, r.File)
}); err != nil {
logger.Error(err)
}
if !required {
return
}
videoFile := t.Scene.Files.Primary()
if videoFile == nil {
return
}
var at float64
if t.ScreenshotAt == nil {
at = float64(videoFile.Duration) * 0.2
} else {
at = *t.ScreenshotAt
}
// we'll generate the screenshot, grab the generated data and set it
// in the database.
logger.Debugf("Creating screenshot for %s", scenePath)
g := generate.Generator{
Encoder: instance.FFMpeg,
FFMpegConfig: instance.Config,
LockManager: instance.ReadLockManager,
ScenePaths: instance.Paths.Scene,
Overwrite: true,
}
coverImageData, err := g.Screenshot(context.TODO(), videoFile.Path, videoFile.Width, videoFile.Duration, generate.ScreenshotOptions{
At: &at,
})
if err != nil {
logger.Errorf("Error generating screenshot: %v", err)
logErrorOutput(err)
return
}
if err := r.WithTxn(ctx, func(ctx context.Context) error {
qb := r.Scene
scenePartial := models.NewScenePartial()
// update the scene cover table
if err := qb.UpdateCover(ctx, t.Scene.ID, coverImageData); err != nil {
return fmt.Errorf("error setting screenshot: %v", err)
}
// update the scene with the update date
_, err = qb.UpdatePartial(ctx, t.Scene.ID, scenePartial)
if err != nil {
return fmt.Errorf("error updating scene: %v", err)
}
return nil
}); err != nil && ctx.Err() == nil {
logger.Error(err.Error())
}
}
// required returns true if the sprite needs to be generated
// assumes in a transaction
func (t *GenerateCoverTask) required(ctx context.Context) bool {
if t.Scene.Path == "" {
return false
}
if t.Overwrite {
return true
}
// if the scene has a cover, then we don't need to generate it
hasCover, err := t.repository.Scene.HasCover(ctx, t.Scene.ID)
if err != nil {
logger.Errorf("Error getting cover: %v", err)
return false
}
return !hasCover
}