mirror of
https://github.com/owncast/owncast.git
synced 2024-12-24 18:18:24 +03:00
110 lines
3.5 KiB
Go
110 lines
3.5 KiB
Go
package core
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import (
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"fmt"
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"os"
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"path/filepath"
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"github.com/grafov/m3u8"
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"github.com/owncast/owncast/config"
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"github.com/owncast/owncast/static"
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"github.com/owncast/owncast/utils"
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log "github.com/sirupsen/logrus"
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)
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func appendOfflineToVariantPlaylist(index int, playlistFilePath string) {
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existingPlaylistContents, err := os.ReadFile(playlistFilePath) // nolint: gosec
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if err != nil {
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log.Debugln("unable to read existing playlist file", err)
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return
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}
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tmpFileName := fmt.Sprintf("tmp-stream-%d.m3u8", index)
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atomicWriteTmpPlaylistFile, err := os.CreateTemp(config.TempDir, tmpFileName)
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if err != nil {
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log.Errorln("error creating tmp playlist file to write to", playlistFilePath, err)
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return
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}
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// Write the existing playlist contents
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if _, err := atomicWriteTmpPlaylistFile.Write(existingPlaylistContents); err != nil {
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log.Debugln("error writing existing playlist contents to tmp playlist file", err)
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return
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}
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// Manually append the offline clip to the end of the media playlist.
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_, _ = atomicWriteTmpPlaylistFile.WriteString("#EXT-X-DISCONTINUITY\n")
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// If "offline" content gets changed then change the duration below
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_, _ = atomicWriteTmpPlaylistFile.WriteString("#EXTINF:8.000000,\n")
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_, _ = atomicWriteTmpPlaylistFile.WriteString("offline.ts\n")
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_, _ = atomicWriteTmpPlaylistFile.WriteString("#EXT-X-ENDLIST\n")
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if err := atomicWriteTmpPlaylistFile.Close(); err != nil {
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log.Errorln(err)
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}
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if err := utils.Move(atomicWriteTmpPlaylistFile.Name(), playlistFilePath); err != nil {
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log.Errorln("error moving temp playlist to overwrite existing one", err)
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}
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}
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func makeVariantIndexOffline(streamId string, index int, offlineFilePath string, offlineFilename string) {
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playlistFilePath := fmt.Sprintf(filepath.Join(config.HLSStoragePath, streamId, "%d/stream.m3u8"), index)
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segmentFilePath := fmt.Sprintf(filepath.Join(config.HLSStoragePath, streamId, "%d/%s"), index, offlineFilename)
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segmentFileDestinationPath := fmt.Sprintf(filepath.Join("hls", streamId, "%d/%s"), index, offlineFilename)
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if err := utils.Copy(offlineFilePath, segmentFilePath); err != nil {
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log.Warnln(err)
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}
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if _, err := _storage.Save(segmentFilePath, segmentFileDestinationPath, 0); err != nil {
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log.Warnln(err)
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}
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if utils.DoesFileExists(playlistFilePath) {
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appendOfflineToVariantPlaylist(index, playlistFilePath)
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} else {
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createEmptyOfflinePlaylist(playlistFilePath, offlineFilename)
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}
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if _, err := _storage.Save(playlistFilePath, playlistFilePath, 0); err != nil {
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log.Warnln(err)
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}
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}
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func createEmptyOfflinePlaylist(playlistFilePath string, offlineFilename string) {
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p, err := m3u8.NewMediaPlaylist(1, 1)
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if err != nil {
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log.Errorln(err)
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}
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// If "offline" content gets changed then change the duration below
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if err := p.Append(offlineFilename, 8.0, ""); err != nil {
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log.Errorln(err)
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}
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p.Close()
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f, err := os.Create(playlistFilePath) //nolint:gosec
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if err != nil {
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log.Errorln(err)
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}
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defer f.Close()
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if _, err := f.Write(p.Encode().Bytes()); err != nil {
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log.Errorln(err)
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}
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}
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func saveOfflineClipToDisk(offlineFilename string) (string, error) {
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offlineFileData := static.GetOfflineSegment()
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offlineTmpFile, err := os.CreateTemp(config.TempDir, offlineFilename)
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if err != nil {
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log.Errorln("unable to create temp file for offline video segment", err)
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}
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if _, err = offlineTmpFile.Write(offlineFileData); err != nil {
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return "", fmt.Errorf("unable to write offline segment to disk: %s", err)
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}
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offlineFilePath := offlineTmpFile.Name()
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return offlineFilePath, nil
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}
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