linux load dll

go.mod

@@ -4,6 +4,7 @@ go 1.22.1
 
 require (
 	github.com/AlexxIT/go2rtc v1.8.5
+	github.com/ebitengine/purego v0.7.1
 	github.com/pion/rtp v1.8.5
 	github.com/stretchr/testify v1.8.4
 	golang.org/x/sys v0.18.0

go.sum

@@ -3,6 +3,8 @@ github.com/AlexxIT/go2rtc v1.8.5/go.mod h1:hd/3EA5bXFpSQFizPa5NUD+1t9/vI8A4IA6E2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ebitengine/purego v0.7.1 h1:6/55d26lG3o9VCZX8lping+bZcmShseiqlh2bnUDiPA=
+github.com/ebitengine/purego v0.7.1/go.mod h1:ah1In8AOtksoNK6yk5z1HTJeUkC1Ez4Wk2idgGslMwQ=
 github.com/pion/randutil v0.1.0 h1:CFG1UdESneORglEsnimhUjf33Rwjubwj6xfiOXBa3mA=
 github.com/pion/randutil v0.1.0/go.mod h1:XcJrSMMbbMRhASFVOlj/5hQial/Y8oH/HVo7TBZq+j8=
 github.com/pion/rtp v1.8.5 h1:uYzINfaK+9yWs7r537z/Rc1SvT8ILjBcmDOpJcTB+OU=

parent_linux.go

@@ -0,0 +1,92 @@
+package main
+
+/*
+#include "smemory.h"
+#include <string.h>
+*/
+import "C"
+import (
+	"bytes"
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+	"unsafe"
+
+	"github.com/ebitengine/purego"
+
+	"github.com/thinkonmay/sunshine-sdk/codec"
+	"github.com/thinkonmay/sunshine-sdk/codec/av1"
+	"github.com/thinkonmay/sunshine-sdk/codec/h264"
+	"github.com/thinkonmay/sunshine-sdk/codec/h265"
+	"github.com/thinkonmay/sunshine-sdk/codec/opus"
+)
+
+func byteSliceToString(s []byte) string {
+	n := bytes.IndexByte(s, 0)
+	if n >= 0 {
+		s = s[:n]
+	}
+	return string(s)
+}
+
+func main() {
+	libc, err := purego.Dlopen("./libparent.so", purego.RTLD_NOW|purego.RTLD_GLOBAL)
+	if err != nil {
+		panic(err)
+	}
+
+	var deinit func()
+	purego.RegisterLibFunc(&deinit, libc, "deinit_shared_memory")
+	defer deinit()
+
+	buffer := make([]byte, 128)
+	var allocate func(unsafe.Pointer) unsafe.Pointer
+	purego.RegisterLibFunc(&allocate, libc, "allocate_shared_memory")
+	pointer := allocate(unsafe.Pointer(&buffer[0]))
+
+	memory := (*C.SharedMemory)(unsafe.Pointer(pointer))
+
+	payloaders := map[C.int]func() codec.Payloader{
+		0: func() codec.Payloader { return &h264.Payloader{} },
+		1: func() codec.Payloader { return &h265.Payloader{} },
+		2: func() codec.Payloader { return &av1.Payloader{} },
+		3: func() codec.Payloader { return &opus.Payloader{} },
+	}
+
+	indexes := make([]*int, C.QueueMax)
+	for i, _ := range indexes {
+		j := int(memory.queues[i].index)
+		indexes[i] = &j
+	}
+
+	for queue_type, i := range indexes {
+		go func(queue *C.Queue, index *int) {
+			buffer := make([]byte, int(C.PACKET_SIZE))
+			payloader := payloaders[queue.metadata.codec]()
+
+			for {
+				for int(queue.index) > *index {
+					new_index := *index + 1
+					real_index := new_index % C.QUEUE_SIZE
+					block := queue.array[real_index]
+
+					C.memcpy(unsafe.Pointer(&buffer[0]), unsafe.Pointer(&block.data[0]), C.ulong(block.size))
+					payloads := payloader.Payload(1200, buffer[:block.size])
+					fmt.Printf("Queue type %d, downstream index %d, upstream index %d, receive size %d\n", queue_type, new_index, queue.index, len(payloads))
+
+					*index = new_index
+				}
+
+				time.Sleep(time.Microsecond * 100)
+			}
+		}(&memory.queues[queue_type], i)
+	}
+
+	fmt.Printf("execute sunshine with command : sudo setcap cap_sys_admin+p $(readlink -f sunshine) && ./sunshine %s 0\n", byteSliceToString(buffer))
+	chann := make(chan os.Signal, 16)
+	signal.Notify(chann, syscall.SIGTERM, os.Interrupt)
+	<-chann
+	fmt.Println("Stopped.")
+}