package capture import ( "fmt" "strings" "github.com/rs/zerolog" "github.com/rs/zerolog/log" "demodesk/neko/internal/config" "demodesk/neko/internal/types" ) type CaptureManagerCtx struct { logger zerolog.Logger desktop types.DesktopManager streaming bool broadcast *BroacastManagerCtx screencast *ScreencastManagerCtx audio *StreamManagerCtx videos map[string]*StreamManagerCtx videoIDs []string } func New(desktop types.DesktopManager, config *config.Capture) *CaptureManagerCtx { logger := log.With().Str("module", "capture").Logger() broadcastPipeline := config.BroadcastPipeline if broadcastPipeline == "" { broadcastPipeline = fmt.Sprintf( "flvmux name=mux ! rtmpsink location='{url} live=1' "+ "pulsesrc device=%s "+ "! audio/x-raw,channels=2 "+ "! audioconvert "+ "! queue "+ "! voaacenc bitrate=%d "+ "! mux. "+ "ximagesrc display-name=%s show-pointer=true use-damage=false "+ "! video/x-raw "+ "! videoconvert "+ "! queue "+ "! x264enc threads=4 bitrate=%d key-int-max=15 byte-stream=true tune=zerolatency speed-preset=%s "+ "! mux.", config.AudioDevice, config.BroadcastAudioBitrate*1000, config.Display, config.BroadcastVideoBitrate, config.BroadcastPreset, ) } screencastPipeline := config.ScreencastPipeline if screencastPipeline == "" { screencastPipeline = fmt.Sprintf( "ximagesrc display-name=%s show-pointer=true use-damage=false "+ "! video/x-raw,framerate=%s "+ "! videoconvert "+ "! queue "+ "! jpegenc quality=%s "+ "! appsink name=appsink", config.Display, config.ScreencastRate, config.ScreencastQuality, ) } videos := map[string]*StreamManagerCtx{} for video_id, cnf := range config.VideoPipelines { pipelineConf := cnf createPipeline := func() string { if pipelineConf.GstPipeline != "" { return strings.Replace(pipelineConf.GstPipeline, "{display}", config.Display, 1) } screen := desktop.GetScreenSize() pipeline, err := pipelineConf.GetPipeline(*screen) if err != nil { logger.Panic().Err(err). Str("video_id", video_id). Msg("unable to get video pipeline") } return fmt.Sprintf( "ximagesrc display-name=%s show-pointer=false use-damage=false "+ "%s ! appsink name=appsink", config.Display, pipeline, ) } // trigger function to catch evaluation errors at startup pipeline := createPipeline() logger.Info(). Str("video_id", video_id). Str("pipeline", pipeline). Msg("syntax check for video stream pipeline passed") // append to videos videos[video_id] = streamNew(config.VideoCodec, createPipeline, video_id) } return &CaptureManagerCtx{ logger: logger, desktop: desktop, streaming: false, broadcast: broadcastNew(broadcastPipeline), screencast: screencastNew(config.ScreencastEnabled, screencastPipeline), audio: streamNew(config.AudioCodec, func() string { if config.AudioPipeline != "" { return config.AudioPipeline } return fmt.Sprintf( "pulsesrc device=%s "+ "! audio/x-raw,channels=2 "+ "! audioconvert "+ "! queue "+ "! %s "+ "! appsink name=appsink", config.AudioDevice, config.AudioCodec.Pipeline, ) }, "audio"), videos: videos, videoIDs: config.VideoIDs, } } func (manager *CaptureManagerCtx) Start() { if manager.broadcast.Started() { if err := manager.broadcast.createPipeline(); err != nil { manager.logger.Panic().Err(err).Msg("unable to create broadcast pipeline") } } manager.desktop.OnBeforeScreenSizeChange(func() { for _, video := range manager.videos { if video.Started() { video.destroyPipeline() } } if manager.broadcast.Started() { manager.broadcast.destroyPipeline() } if manager.screencast.Started() { manager.screencast.destroyPipeline() } }) manager.desktop.OnAfterScreenSizeChange(func() { for _, video := range manager.videos { if video.Started() { if err := video.createPipeline(); err != nil { manager.logger.Panic().Err(err).Msg("unable to recreate video pipeline") } } } if manager.broadcast.Started() { if err := manager.broadcast.createPipeline(); err != nil { manager.logger.Panic().Err(err).Msg("unable to recreate broadcast pipeline") } } if manager.screencast.Started() { if err := manager.screencast.createPipeline(); err != nil { manager.logger.Panic().Err(err).Msg("unable to recreate screencast pipeline") } } }) } func (manager *CaptureManagerCtx) Shutdown() error { manager.logger.Info().Msgf("shutdown") manager.broadcast.shutdown() manager.screencast.shutdown() manager.audio.shutdown() for _, video := range manager.videos { video.shutdown() } return nil } func (manager *CaptureManagerCtx) Broadcast() types.BroadcastManager { return manager.broadcast } func (manager *CaptureManagerCtx) Screencast() types.ScreencastManager { return manager.screencast } func (manager *CaptureManagerCtx) Audio() types.StreamManager { return manager.audio } func (manager *CaptureManagerCtx) Video(videoID string) (types.StreamManager, bool) { video, ok := manager.videos[videoID] return video, ok } func (manager *CaptureManagerCtx) VideoIDs() []string { return manager.videoIDs }