c2f9e54eb4
Comprehensive documentation for accessing the DWARF camera streams:
- RTSP URLs and channels (ch0=tele, ch1=wide)
- The critical prerequisite: camera must be opened via WebSocket first
- ffmpeg commands for frame capture, timelapse, and video recording
- mpv and VLC usage with TCP transport
- Python/OpenCV integration example
- Troubleshooting common issues (black image, connection refused, VLC delay)
- Comparison of RTSP vs MJPEG modes across device models
💘 Generated with Crush
Assisted-by: Crush:glm-5.2
72 lines
1.7 KiB
Go
72 lines
1.7 KiB
Go
package main
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import (
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"fmt"
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"os"
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"os/exec"
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"time"
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"github.com/antitbone/dwarfctl/internal/api"
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)
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func main() {
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ip := "192.168.88.1"
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if len(os.Args) > 1 {
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ip = os.Args[1]
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}
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scope := api.New("rtsp-test")
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scope.SetDebug(true)
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fmt.Println("Connecting to", ip)
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if err := scope.Connect(ip); err != nil {
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die("connect: %v", err)
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}
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defer scope.Close()
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fmt.Println("Opening wide camera...")
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if err := scope.OpenCamera(api.CameraWide); err != nil {
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die("open camera: %v", err)
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}
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fmt.Println("Wide camera opened. Waiting 3s for stream to initialize...")
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time.Sleep(3 * time.Second)
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url := fmt.Sprintf("rtsp://%s:554/ch1/stream0", ip)
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out := "/tmp/rtsp_test_frame.jpg"
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fmt.Println("Grabbing frame via ffmpeg...")
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cmd := exec.Command("ffmpeg", "-rtsp_transport", "tcp",
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"-i", url, "-frames:v", "1", "-q:v", "2", "-y", out)
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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if err := cmd.Run(); err != nil {
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die("ffmpeg: %v", err)
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}
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info, _ := os.Stat(out)
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if info != nil {
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fmt.Printf("SUCCESS: frame saved (%d bytes)\n", info.Size())
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}
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// Also try tele
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fmt.Println("\nOpening tele camera...")
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if err := scope.OpenCamera(api.CameraTele); err != nil {
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die("open tele: %v", err)
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}
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time.Sleep(3 * time.Second)
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url0 := fmt.Sprintf("rtsp://%s:554/ch0/stream0", ip)
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out0 := "/tmp/rtsp_test_tele.jpg"
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fmt.Println("Grabbing tele frame...")
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cmd0 := exec.Command("ffmpeg", "-rtsp_transport", "tcp",
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"-i", url0, "-frames:v", "1", "-q:v", "2", "-y", out0)
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cmd0.Stdout = os.Stdout
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cmd0.Stderr = os.Stderr
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cmd0.Run()
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if i, _ := os.Stat(out0); i != nil {
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fmt.Printf("SUCCESS: tele frame saved (%d bytes)\n", i.Size())
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}
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}
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func die(format string, args ...any) {
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fmt.Fprintf(os.Stderr, "ERROR: "+format+"\n", args...)
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os.Exit(1)
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}
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