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pipelineFn returns string.

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This commit is contained in:
Miroslav Šedivý
2022-09-21 18:58:28 +02:00
parent b6d86aab30
commit da86a0931c
4 changed files with 43 additions and 47 deletions
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40
server/internal/capture/pipelines.go
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@ -33,7 +33,7 @@ const (
audioSrc = "pulsesrc device=%s ! audio/x-raw,channels=2 ! audioconvert ! "
)
func NewBroadcastPipeline(device string, display string, pipelineSrc string, url string) (*gst.Pipeline, error) {
func NewBroadcastPipeline(device string, display string, pipelineSrc string, url string) (string, error) {
video := fmt.Sprintf(videoSrc, display, 25)
audio := fmt.Sprintf(audioSrc, device)
@ -49,23 +49,23 @@ func NewBroadcastPipeline(device string, display string, pipelineSrc string, url
pipelineStr = fmt.Sprintf("flvmux name=mux ! rtmpsink location='%s live=1' %s audio/x-raw,channels=2 ! audioconvert ! voaacenc ! mux. %s x264enc bframes=0 key-int-max=60 byte-stream=true tune=zerolatency speed-preset=veryfast ! mux.", url, audio, video)
}
return gst.CreatePipeline(pipelineStr)
return pipelineStr, nil
}
func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc string, fps int16, bitrate uint, hwenc string) (*gst.Pipeline, error) {
func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc string, fps int16, bitrate uint, hwenc string) (string, error) {
pipelineStr := " ! appsink name=appsink"
// if using custom pipeline
if pipelineSrc != "" {
pipelineStr = fmt.Sprintf(pipelineSrc+pipelineStr, display)
return gst.CreatePipeline(pipelineStr)
return pipelineStr, nil
}
switch rtpCodec.Name {
case codec.VP8().Name:
if hwenc == "VAAPI" {
if err := gst.CheckPlugins([]string{"ximagesrc", "vaapi"}); err != nil {
return nil, err
return "", err
}
// vp8 encode is missing from gstreamer.freedesktop.org/documentation
// note that it was removed from some recent intel CPUs: https://trac.ffmpeg.org/wiki/Hardware/QuickSync
@ -76,7 +76,7 @@ func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc strin
// gstreamer1.0-plugins-good
// vp8enc error-resilient=partitions keyframe-max-dist=10 auto-alt-ref=true cpu-used=5 deadline=1
if err := gst.CheckPlugins([]string{"ximagesrc", "vpx"}); err != nil {
return nil, err
return "", err
}
pipelineStr = strings.Join([]string{
@ -102,18 +102,18 @@ func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc strin
// gstreamer1.0-plugins-good
// vp9enc
if err := gst.CheckPlugins([]string{"ximagesrc", "vpx"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(videoSrc+"vp9enc target-bitrate=%d cpu-used=-5 threads=4 deadline=1 keyframe-max-dist=30 auto-alt-ref=true"+pipelineStr, display, fps, bitrate*1000)
case codec.H264().Name:
if err := gst.CheckPlugins([]string{"ximagesrc"}); err != nil {
return nil, err
return "", err
}
if hwenc == "VAAPI" {
if err := gst.CheckPlugins([]string{"vaapi"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(videoSrc+"video/x-raw,format=NV12 ! vaapih264enc rate-control=vbr bitrate=%d keyframe-period=180 quality-level=7 ! video/x-h264,stream-format=byte-stream"+pipelineStr, display, fps, bitrate)
@ -131,7 +131,7 @@ func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc strin
// gstreamer1.0-plugins-ugly
// video/x-raw,format=I420 ! x264enc bframes=0 key-int-max=60 byte-stream=true tune=zerolatency speed-preset=veryfast ! video/x-h264,stream-format=byte-stream
if err := gst.CheckPlugins([]string{"x264"}); err != nil {
return nil, err
return "", err
}
vbvbuf := uint(1000)
@ -142,19 +142,19 @@ func NewVideoPipeline(rtpCodec codec.RTPCodec, display string, pipelineSrc strin
pipelineStr = fmt.Sprintf(videoSrc+"video/x-raw,format=NV12 ! x264enc threads=4 bitrate=%d key-int-max=60 vbv-buf-capacity=%d byte-stream=true tune=zerolatency speed-preset=veryfast ! video/x-h264,stream-format=byte-stream"+pipelineStr, display, fps, bitrate, vbvbuf)
}
default:
return nil, fmt.Errorf("unknown codec %s", rtpCodec.Name)
return "", fmt.Errorf("unknown codec %s", rtpCodec.Name)
}
return gst.CreatePipeline(pipelineStr)
return pipelineStr, nil
}
func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string, bitrate uint) (*gst.Pipeline, error) {
func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string, bitrate uint) (string, error) {
pipelineStr := " ! appsink name=appsink"
// if using custom pipeline
if pipelineSrc != "" {
pipelineStr = fmt.Sprintf(pipelineSrc+pipelineStr, device)
return gst.CreatePipeline(pipelineStr)
return pipelineStr, nil
}
switch rtpCodec.Name {
@ -163,7 +163,7 @@ func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string
// gstreamer1.0-plugins-base
// opusenc
if err := gst.CheckPlugins([]string{"pulseaudio", "opus"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(audioSrc+"opusenc inband-fec=true bitrate=%d"+pipelineStr, device, bitrate*1000)
@ -172,7 +172,7 @@ func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string
// gstreamer1.0-libav
// avenc_g722
if err := gst.CheckPlugins([]string{"pulseaudio", "libav"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(audioSrc+"avenc_g722 bitrate=%d"+pipelineStr, device, bitrate*1000)
@ -181,7 +181,7 @@ func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string
// gstreamer1.0-plugins-good
// audio/x-raw, rate=8000 ! mulawenc
if err := gst.CheckPlugins([]string{"pulseaudio", "mulaw"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(audioSrc+"audio/x-raw, rate=8000 ! mulawenc"+pipelineStr, device)
@ -190,13 +190,13 @@ func NewAudioPipeline(rtpCodec codec.RTPCodec, device string, pipelineSrc string
// gstreamer1.0-plugins-good
// audio/x-raw, rate=8000 ! alawenc
if err := gst.CheckPlugins([]string{"pulseaudio", "alaw"}); err != nil {
return nil, err
return "", err
}
pipelineStr = fmt.Sprintf(audioSrc+"audio/x-raw, rate=8000 ! alawenc"+pipelineStr, device)
default:
return nil, fmt.Errorf("unknown codec %s", rtpCodec.Name)
return "", fmt.Errorf("unknown codec %s", rtpCodec.Name)
}
return gst.CreatePipeline(pipelineStr)
return pipelineStr, nil
}