stash/internal/manager/running_streams.go

94 lines
2.8 KiB
Go

package manager
import (
"context"
"errors"
"io"
"net/http"
"github.com/stashapp/stash/internal/manager/config"
"github.com/stashapp/stash/internal/static"
"github.com/stashapp/stash/pkg/ffmpeg"
"github.com/stashapp/stash/pkg/fsutil"
"github.com/stashapp/stash/pkg/logger"
"github.com/stashapp/stash/pkg/models"
"github.com/stashapp/stash/pkg/txn"
"github.com/stashapp/stash/pkg/utils"
)
func KillRunningStreams(scene *models.Scene, fileNamingAlgo models.HashAlgorithm) {
instance.ReadLockManager.Cancel(scene.Path)
sceneHash := scene.GetHash(fileNamingAlgo)
if sceneHash == "" {
return
}
transcodePath := GetInstance().Paths.Scene.GetTranscodePath(sceneHash)
instance.ReadLockManager.Cancel(transcodePath)
}
type SceneCoverGetter interface {
GetCover(ctx context.Context, sceneID int) ([]byte, error)
}
type SceneServer struct {
TxnManager txn.Manager
SceneCoverGetter SceneCoverGetter
}
func (s *SceneServer) StreamSceneDirect(scene *models.Scene, w http.ResponseWriter, r *http.Request) {
fileNamingAlgo := config.GetInstance().GetVideoFileNamingAlgorithm()
filepath := GetInstance().Paths.Scene.GetStreamPath(scene.Path, scene.GetHash(fileNamingAlgo))
streamRequestCtx := ffmpeg.NewStreamRequestContext(w, r)
// #2579 - hijacking and closing the connection here causes video playback to fail in Safari
// We trust that the request context will be closed, so we don't need to call Cancel on the
// returned context here.
_ = GetInstance().ReadLockManager.ReadLock(streamRequestCtx, filepath)
http.ServeFile(w, r, filepath)
}
func (s *SceneServer) ServeScreenshot(scene *models.Scene, w http.ResponseWriter, r *http.Request) {
const defaultSceneImage = "scene/scene.svg"
var cover []byte
readTxnErr := txn.WithReadTxn(r.Context(), s.TxnManager, func(ctx context.Context) error {
cover, _ = s.SceneCoverGetter.GetCover(ctx, scene.ID)
return nil
})
if errors.Is(readTxnErr, context.Canceled) {
return
}
if readTxnErr != nil {
logger.Warnf("read transaction error on fetch screenshot: %v", readTxnErr)
}
if cover == nil {
// fallback to legacy image if present
if scene.Path != "" {
filepath := GetInstance().Paths.Scene.GetLegacyScreenshotPath(scene.GetHash(config.GetInstance().GetVideoFileNamingAlgorithm()))
// fall back to the scene image blob if the file isn't present
screenshotExists, _ := fsutil.FileExists(filepath)
if screenshotExists {
http.ServeFile(w, r, filepath)
return
}
}
// fallback to default cover if none found
// should always be there
f, _ := static.Scene.Open(defaultSceneImage)
defer f.Close()
stat, _ := f.Stat()
http.ServeContent(w, r, "scene.svg", stat.ModTime(), f.(io.ReadSeeker))
}
if err := utils.ServeImage(cover, w, r); err != nil {
logger.Warnf("error serving screenshot image: %v", err)
}
}