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Make caches singletons

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This commit is contained in:
Deluan 2020-10-27 17:02:20 -04:00
parent 515528ee6d
commit 9b756faef5
6 changed files with 53 additions and 45 deletions
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43
core/media_streamer.go
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@ -6,6 +6,7 @@ import (
"io"
"mime"
"os"
"sync"
"time"
"github.com/deluan/navidrome/conf"
@ -167,21 +168,29 @@ func selectTranscodingOptions(ctx context.Context, ds model.DataStore, mf *model
return
}
func NewTranscodingCache() TranscodingCache {
return cache.NewFileCache("Transcoding", conf.Server.TranscodingCacheSize,
consts.TranscodingCacheDir, consts.DefaultTranscodingCacheMaxItems,
func(ctx context.Context, arg cache.Item) (io.Reader, error) {
job := arg.(*streamJob)
t, err := job.ms.ds.Transcoding(ctx).FindByFormat(job.format)
if err != nil {
log.Error(ctx, "Error loading transcoding command", "format", job.format, err)
return nil, os.ErrInvalid
}
out, err := job.ms.ffm.Start(ctx, t.Command, job.mf.Path, job.bitRate)
if err != nil {
log.Error(ctx, "Error starting transcoder", "id", job.mf.ID, err)
return nil, os.ErrInvalid
}
return out, nil
})
var (
onceTranscodingCache sync.Once
instanceTranscodingCache TranscodingCache
)
func GetTranscodingCache() TranscodingCache {
onceTranscodingCache.Do(func() {
instanceTranscodingCache = cache.NewFileCache("Transcoding", conf.Server.TranscodingCacheSize,
consts.TranscodingCacheDir, consts.DefaultTranscodingCacheMaxItems,
func(ctx context.Context, arg cache.Item) (io.Reader, error) {
job := arg.(*streamJob)
t, err := job.ms.ds.Transcoding(ctx).FindByFormat(job.format)
if err != nil {
log.Error(ctx, "Error loading transcoding command", "format", job.format, err)
return nil, os.ErrInvalid
}
out, err := job.ms.ffm.Start(ctx, t.Command, job.mf.Path, job.bitRate)
if err != nil {
log.Error(ctx, "Error starting transcoder", "id", job.mf.ID, err)
return nil, os.ErrInvalid
}
return out, nil
})
})
return instanceTranscodingCache
}