neko/internal/config/capture.go

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package config
import (
"regexp"
"strconv"
"github.com/pion/webrtc/v2"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
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type Capture struct {
Display string
Device string
AudioCodec string
AudioParams string
VideoCodec string
VideoParams string
ScreenWidth int
ScreenHeight int
ScreenRate int
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BroadcastPipeline string
}
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func (Capture) Init(cmd *cobra.Command) error {
cmd.PersistentFlags().String("display", ":99.0", "XDisplay to capture")
if err := viper.BindPFlag("display", cmd.PersistentFlags().Lookup("display")); err != nil {
return err
}
cmd.PersistentFlags().String("device", "auto_null.monitor", "audio device to capture")
if err := viper.BindPFlag("device", cmd.PersistentFlags().Lookup("device")); err != nil {
return err
}
cmd.PersistentFlags().String("audio", "", "audio codec parameters to use for streaming")
if err := viper.BindPFlag("audio", cmd.PersistentFlags().Lookup("audio")); err != nil {
return err
}
cmd.PersistentFlags().String("video", "", "video codec parameters to use for streaming")
if err := viper.BindPFlag("video", cmd.PersistentFlags().Lookup("video")); err != nil {
return err
}
cmd.PersistentFlags().String("screen", "1280x720@30", "default screen resolution and framerate")
if err := viper.BindPFlag("screen", cmd.PersistentFlags().Lookup("screen")); err != nil {
return err
}
// video codecs
cmd.PersistentFlags().Bool("vp8", false, "use VP8 video codec")
if err := viper.BindPFlag("vp8", cmd.PersistentFlags().Lookup("vp8")); err != nil {
return err
}
cmd.PersistentFlags().Bool("vp9", false, "use VP9 video codec")
if err := viper.BindPFlag("vp9", cmd.PersistentFlags().Lookup("vp9")); err != nil {
return err
}
cmd.PersistentFlags().Bool("h264", false, "use H264 video codec")
if err := viper.BindPFlag("h264", cmd.PersistentFlags().Lookup("h264")); err != nil {
return err
}
// audio codecs
cmd.PersistentFlags().Bool("opus", false, "use Opus audio codec")
if err := viper.BindPFlag("opus", cmd.PersistentFlags().Lookup("opus")); err != nil {
return err
}
cmd.PersistentFlags().Bool("g722", false, "use G722 audio codec")
if err := viper.BindPFlag("g722", cmd.PersistentFlags().Lookup("g722")); err != nil {
return err
}
cmd.PersistentFlags().Bool("pcmu", false, "use PCMU audio codec")
if err := viper.BindPFlag("pcmu", cmd.PersistentFlags().Lookup("pcmu")); err != nil {
return err
}
cmd.PersistentFlags().Bool("pcma", false, "use PCMA audio codec")
if err := viper.BindPFlag("pcma", cmd.PersistentFlags().Lookup("pcma")); err != nil {
return err
}
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// broadcast
cmd.PersistentFlags().String("broadcast_pipeline", "", "audio video codec parameters to use for broadcasting")
if err := viper.BindPFlag("broadcast_pipeline", cmd.PersistentFlags().Lookup("broadcast_pipeline")); err != nil {
return err
}
return nil
}
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func (s *Capture) Set() {
videoCodec := webrtc.VP8
if viper.GetBool("vp8") {
videoCodec = webrtc.VP8
} else if viper.GetBool("vp9") {
videoCodec = webrtc.VP9
} else if viper.GetBool("h264") {
videoCodec = webrtc.H264
}
audioCodec := webrtc.Opus
if viper.GetBool("opus") {
audioCodec = webrtc.Opus
} else if viper.GetBool("g722") {
audioCodec = webrtc.G722
} else if viper.GetBool("pcmu") {
audioCodec = webrtc.PCMU
} else if viper.GetBool("pcma") {
audioCodec = webrtc.PCMA
}
s.Device = viper.GetString("device")
s.AudioCodec = audioCodec
s.AudioParams = viper.GetString("audio")
s.Display = viper.GetString("display")
s.VideoCodec = videoCodec
s.VideoParams = viper.GetString("video")
s.ScreenWidth = 1280
s.ScreenHeight = 720
s.ScreenRate = 30
r := regexp.MustCompile(`([0-9]{1,4})x([0-9]{1,4})@([0-9]{1,3})`)
res := r.FindStringSubmatch(viper.GetString("screen"))
if len(res) > 0 {
width, err1 := strconv.ParseInt(res[1], 10, 64)
height, err2 := strconv.ParseInt(res[2], 10, 64)
rate, err3 := strconv.ParseInt(res[3], 10, 64)
if err1 == nil && err2 == nil && err3 == nil {
s.ScreenWidth = int(width)
s.ScreenHeight = int(height)
s.ScreenRate = int(rate)
}
}
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s.BroadcastPipeline = viper.GetString("broadcast_pipeline")
}