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Capture bandwidth switch (#14)

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* Handle bitrate change by finding the stream with closest bitrate as peer

* Convert video id into bitrate when creating peer or changing bitrate

* Try to fix prometheus panic

* Revert metrics label name change

* minor fixes.

* bitrate selector.

* skip if moving to the same stream.

* no closure for getting target bitrate.

* fix: high res switch to lo video, stream bitrate out of range

* revert dev config change.

* white space.

Co-authored-by: Aleksandar Sukovic <aleksandar.sukovic@gmail.com>
This commit is contained in:
Miroslav Šedivý 2022-10-25 20:25:00 +02:00 • committed by GitHub
parent e0bee67e85
commit 6067367acd
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10 changed files with 186 additions and 52 deletions
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19
internal/capture/manager.go
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@ -16,6 +16,7 @@ import (
type CaptureManagerCtx struct {
logger zerolog.Logger
desktop types.DesktopManager
config *config.Capture
// sinks
broadcast *BroacastManagerCtx
@ -66,13 +67,18 @@ func New(desktop types.DesktopManager, config *config.Capture) *CaptureManagerCt
Str("pipeline", pipeline).
Msg("syntax check for video stream pipeline passed")
getVideoBitrate := pipelineConf.GetBitrateFn(desktop.GetScreenSize)
if err != nil {
logger.Panic().Err(err).Msg("unable to get video bitrate")
}
// append to videos
videos[video_id] = streamSinkNew(config.VideoCodec, createPipeline, video_id)
videos[video_id] = streamSinkNew(config.VideoCodec, createPipeline, video_id, getVideoBitrate)
}
return &CaptureManagerCtx{
logger: logger,
desktop: desktop,
config: config,
// sinks
broadcast: broadcastNew(func(url string) (string, error) {
@ -132,7 +138,7 @@ func New(desktop types.DesktopManager, config *config.Capture) *CaptureManagerCt
"! %s "+
"! appsink name=appsink", config.AudioDevice, config.AudioCodec.Pipeline,
), nil
}, "audio"),
}, "audio", nil),
video: bucketsNew(config.VideoCodec, videos, config.VideoIDs),
// sources
@ -242,6 +248,15 @@ func (manager *CaptureManagerCtx) Shutdown() error {
return nil
}
func (manager *CaptureManagerCtx) GetBitrateFromVideoID(videoID string) (int, error) {
cfg, ok := manager.config.VideoPipelines[videoID]
if !ok {
return 0, fmt.Errorf("video config not found for %s", videoID)
}
return cfg.GetBitrateFn(manager.desktop.GetScreenSize)()
}
func (manager *CaptureManagerCtx) Broadcast() types.BroadcastManager {
return manager.broadcast
}