feat(strm): add file size filtering for STRM generation (#2911)

* feat(strm): add file size filtering for STRM generation

- add ParseSize helper function in pkg/utils to parse human-readable byte sizes
- add minFileSize setting field to STRM driver Addition struct
- filter out files below minFileSize threshold during STRM generation

* refactor(strm): use MB as default unit for minFileSize instead of ParseSize

Replace string-based ParseSize auto-conversion with a simple int64 number
field defaulting to MB, consistent with other drivers (Google Drive,
Teldrive). Remove the now-unused ParseSize function and its tests.

drivers/strm/driver.go

@@ -27,6 +27,7 @@ type Strm struct {
 
 	supportSuffix  map[string]struct{}
 	downloadSuffix map[string]struct{}
+	minSizeBytes   int64
 }
 
 func (d *Strm) Config() driver.Config {
@@ -120,6 +121,7 @@ func (d *Strm) Init(ctx context.Context) error {
 	if len(d.SaveLocalMode) == 0 {
 		d.SaveLocalMode = SaveLocalInsertMode
 	}
+	d.minSizeBytes = d.MinFileSize * 1024 * 1024
 	return nil
 }
 

drivers/strm/meta.go

@@ -17,6 +17,7 @@ type Addition struct {
 	PathPrefix        string `json:"PathPrefix" type:"text" required:"false" default:"/d"  help:"Path prefix"`
 	DownloadFileTypes string `json:"downloadFileTypes" type:"text" default:"ass,srt,vtt,sub,strm" required:"false" help:"Files need to download with strm (usally subtitles)"`
 	FilterFileTypes   string `json:"filterFileTypes" type:"text" default:"mp4,mkv,flv,avi,wmv,ts,rmvb,webm,mp3,flac,aac,wav,ogg,m4a,wma,alac" required:"false" help:"Supports suffix name of strm file"`
+	MinFileSize       int64  `json:"minFileSize" type:"number" required:"false" default:"0" help:"Filter out files smaller than this size (unit: MB, 0 to disable)"`
 	EncodePath        bool   `json:"encodePath" default:"true" required:"true" help:"encode the path in the strm file"`
 	WithoutUrl        bool   `json:"withoutUrl" default:"false" help:"strm file content without URL prefix"`
 	WithSign          bool   `json:"withSign" default:"false"`

drivers/strm/util.go

@@ -73,6 +73,9 @@ func (d *Strm) convert2strmObjs(ctx context.Context, reqPath string, objs []mode
 			if _, ok := d.downloadSuffix[ext]; ok {
 				size = obj.GetSize()
 			} else if _, ok := d.supportSuffix[ext]; ok {
+				if d.minSizeBytes > 0 && obj.GetSize() < d.minSizeBytes {
+					continue
+				}
 				id = "strm"
 				name = strings.TrimSuffix(name, sourceExt) + "strm"
 				size = int64(len(d.getLink(ctx, path)))