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Feature: extract embedded cover art from audio files to display as thumbnails
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Elijah 2026-05-25 19:14:15 -07:00
parent d982ce66a8
commit ae6c97b9de
2 changed files with 23 additions and 1 deletions
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21
backend/workers/thumbnails.go
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@ -91,6 +91,8 @@ func (m *ThumbnailManager) worker(id int) {
err = generateImageThumbnail(fullSourcePath, destPath)
} else if strings.HasPrefix(job.MimeType, "video/") {
err = generateVideoThumbnail(fullSourcePath, destPath)
} else if strings.HasPrefix(job.MimeType, "audio/") {
err = generateAudioThumbnail(fullSourcePath, destPath)
} else if strings.HasSuffix(job.FilePath, ".docx") || strings.HasSuffix(job.FilePath, ".pptx") || strings.HasSuffix(job.FilePath, ".xlsx") {
err = generateOfficeThumbnail(job.FilePath, destPath, m.Config)
} else {
@ -135,6 +137,25 @@ func generateVideoThumbnail(src, dest string) error {
return nil
}
func generateAudioThumbnail(src, dest string) error {
// Extract embedded cover art from audio file, scale to 256x256
cmd := exec.Command("ffmpeg", "-y", "-i", src, "-an", "-vcodec", "mjpeg", "-vframes", "1", "-vf", "scale=256:256:force_original_aspect_ratio=decrease", dest)
timer := time.AfterFunc(10*time.Second, func() {
if cmd.Process != nil {
cmd.Process.Kill()
}
})
err := cmd.Run()
timer.Stop()
if err != nil {
return fmt.Errorf("ffmpeg audio cover extraction failed: %w", err)
}
return nil
}
func generateOfficeThumbnail(filePath, destPath string, cfg *config.Config) error {
// Generate a download token for the Conversion API to fetch the file from our backend
token, err := middleware.GenerateDownloadToken(0, "system_worker", cfg.JWTSecret)