mirror of https://github.com/stashapp/stash.git
133 lines
3.2 KiB
Go
133 lines
3.2 KiB
Go
package manager
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import (
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"context"
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"fmt"
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"github.com/stashapp/stash/pkg/fsutil"
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"github.com/stashapp/stash/pkg/logger"
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"github.com/stashapp/stash/pkg/models"
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"github.com/stashapp/stash/pkg/scene/generate"
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)
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type GeneratePreviewTask struct {
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Scene models.Scene
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ImagePreview bool
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Options generate.PreviewOptions
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Overwrite bool
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fileNamingAlgorithm models.HashAlgorithm
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generator *generate.Generator
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videoPreviewExists *bool
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imagePreviewExists *bool
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}
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func (t *GeneratePreviewTask) GetDescription() string {
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return fmt.Sprintf("Generating preview for %s", t.Scene.Path)
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}
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func (t *GeneratePreviewTask) Start(ctx context.Context) {
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videoChecksum := t.Scene.GetHash(t.fileNamingAlgorithm)
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if t.videoPreviewRequired() {
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ffprobe := instance.FFProbe
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videoFile, err := ffprobe.NewVideoFile(t.Scene.Path)
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if err != nil {
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logger.Errorf("error reading video file: %v", err)
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return
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}
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if err := t.generateVideo(videoChecksum, videoFile.VideoStreamDuration, videoFile.FrameRate); err != nil {
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logger.Errorf("error generating preview: %v", err)
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logErrorOutput(err)
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return
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}
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}
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if t.imagePreviewRequired() {
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if err := t.generateWebp(videoChecksum); err != nil {
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logger.Errorf("error generating preview webp: %v", err)
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logErrorOutput(err)
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}
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}
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}
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func (t *GeneratePreviewTask) generateVideo(videoChecksum string, videoDuration float64, videoFrameRate float64) error {
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videoFilename := t.Scene.Path
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useVsync2 := false
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if videoFrameRate <= 0.01 {
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logger.Errorf("[generator] Video framerate very low/high (%f) most likely vfr so using -vsync 2", videoFrameRate)
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useVsync2 = true
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}
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if err := t.generator.PreviewVideo(context.TODO(), videoFilename, videoDuration, videoChecksum, t.Options, false, useVsync2); err != nil {
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logger.Warnf("[generator] failed generating scene preview, trying fallback")
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if err := t.generator.PreviewVideo(context.TODO(), videoFilename, videoDuration, videoChecksum, t.Options, true, useVsync2); err != nil {
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return err
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}
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}
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return nil
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}
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func (t *GeneratePreviewTask) generateWebp(videoChecksum string) error {
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videoFilename := t.Scene.Path
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return t.generator.PreviewWebp(context.TODO(), videoFilename, videoChecksum)
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}
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func (t *GeneratePreviewTask) required() bool {
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return t.videoPreviewRequired() || t.imagePreviewRequired()
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}
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func (t *GeneratePreviewTask) videoPreviewRequired() bool {
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if t.Scene.Path == "" {
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return false
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}
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if t.Overwrite {
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return true
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}
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sceneChecksum := t.Scene.GetHash(t.fileNamingAlgorithm)
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if sceneChecksum == "" {
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return false
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}
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if t.videoPreviewExists == nil {
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videoExists, _ := fsutil.FileExists(instance.Paths.Scene.GetVideoPreviewPath(sceneChecksum))
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t.videoPreviewExists = &videoExists
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}
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return !*t.videoPreviewExists
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}
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func (t *GeneratePreviewTask) imagePreviewRequired() bool {
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if !t.ImagePreview {
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return false
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}
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if t.Scene.Path == "" {
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return false
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}
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if t.Overwrite {
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return true
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}
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sceneChecksum := t.Scene.GetHash(t.fileNamingAlgorithm)
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if sceneChecksum == "" {
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return false
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}
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if t.imagePreviewExists == nil {
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imageExists, _ := fsutil.FileExists(instance.Paths.Scene.GetWebpPreviewPath(sceneChecksum))
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t.imagePreviewExists = &imageExists
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}
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return !*t.imagePreviewExists
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}
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