github/vnc2video
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fixed rfb encoding (file-reader)

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This commit is contained in:
amit bezalel 2018-02-17 16:45:52 +02:00
parent 4f65cf3972
commit be81a1eb67
12 changed files with 864 additions and 774 deletions
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12
.vscode/launch.json vendored
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@ -5,7 +5,7 @@
"version": "0.2.0",
"configurations": [
{
"name": "Launch Package",
"name": "Launch Client",
"type": "go",
"request": "launch",
"mode": "debug",
@ -13,6 +13,16 @@
"localhost:5903"
],
"program": "${workspaceRoot}/example/client"
},
{
"name": "Launch FbsReader",
"type": "go",
"request": "launch",
"mode": "debug",
"args": [
"/Users/amitbet/Downloads/vncproxy-darwin-amd64-v1.0/myfbs.fbs"
],
"program": "${workspaceRoot}/example/file-reader"
}
]

1
client.go
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@ -36,6 +36,7 @@ func Connect(ctx context.Context, c net.Conn, cfg *ClientConfig) (*ClientConn, e
for _, h := range cfg.Handlers {
if err := h.Handle(conn); err != nil {
logger.Error("Handshake failed, check that server is running: ", err)
conn.Close()
cfg.ErrorCh <- err
return nil, err

8
encoders/qtrle-enc.go
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@ -85,8 +85,12 @@ func (enc *QTRLEImageEncoder) Init(videoFileName string) {
}
func (enc *QTRLEImageEncoder) Run(videoFileName string) error {
if _, err := os.Stat(enc.FFMpegBinPath); os.IsNotExist(err) {
logger.Error("encoder file doesn't exist in path:", enc.FFMpegBinPath)
return errors.New("encoder file doesn't exist in path" + videoFileName)
if _, err := os.Stat(enc.FFMpegBinPath + ".exe"); os.IsNotExist(err) {
logger.Error("encoder file doesn't exist in path:", enc.FFMpegBinPath)
return errors.New("encoder file doesn't exist in path" + videoFileName)
} else {
enc.FFMpegBinPath = enc.FFMpegBinPath + ".exe"
}
}
enc.Init(videoFileName)

17
encoders/x264-enc.go
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@ -6,6 +6,7 @@ import (
"io"
"os"
"os/exec"
"strconv"
"strings"
"vnc2video/logger"
)
@ -31,7 +32,7 @@ func (enc *X264ImageEncoder) Init(videoFileName string) {
"-f", "image2pipe",
"-vcodec", "ppm",
//"-r", strconv.Itoa(framerate),
"-r", "12",
"-r", strconv.Itoa(enc.Framerate),
//"-re",
//"-i", "pipe:0",
@ -53,15 +54,15 @@ func (enc *X264ImageEncoder) Init(videoFileName string) {
// "-an", "-f", "webm",
"-preset", "veryfast",
//"-tune", "animation",
"-maxrate", "0.5M",
"-bufsize", "50M",
// "-maxrate", "0.5M",
// "-bufsize", "50M",
"-g", "250",
//"-crf", "0", //for lossless encoding!!!!
//"-rc_lookahead", "16",
//"-profile", "0",
"-crf", "34",
"-crf", "37",
//"-qmax", "51",
//"-qmin", "7",
//"-slices", "4",
@ -84,8 +85,12 @@ func (enc *X264ImageEncoder) Init(videoFileName string) {
}
func (enc *X264ImageEncoder) Run(videoFileName string) error {
if _, err := os.Stat(enc.FFMpegBinPath); os.IsNotExist(err) {
logger.Error("encoder file doesn't exist in path:", enc.FFMpegBinPath)
return errors.New("encoder file doesn't exist in path" + videoFileName)
if _, err := os.Stat(enc.FFMpegBinPath + ".exe"); os.IsNotExist(err) {
logger.Error("encoder file doesn't exist in path:", enc.FFMpegBinPath)
return errors.New("encoder file doesn't exist in path" + videoFileName)
} else {
enc.FFMpegBinPath = enc.FFMpegBinPath + ".exe"
}
}
enc.Init(videoFileName)

1484
encoding_tight.go
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File diff suppressed because it is too large Load Diff

3
encoding_tightpng.go
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@ -81,7 +81,8 @@ func (enc *TightPngEncoding) Read(c Conn, rect *Rectangle) error {
if err != nil {
return err
}
draw.Draw(enc.Image, enc.Image.Bounds(), img, image.Point{X: int(rect.X), Y: int(rect.Y)}, draw.Src)
//draw.Draw(enc.Image, enc.Image.Bounds(), img, image.Point{X: int(rect.X), Y: int(rect.Y)}, draw.Src)
DrawImage(enc.Image, img, image.Point{X: int(rect.X), Y: int(rect.Y)})
case TightCompressionFill:
var tpx TightPixel
if err := binary.Read(c, binary.BigEndian, &tpx); err != nil {

9
encoding_util.go
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@ -139,6 +139,15 @@ func Min(a, b int) int {
return b
}
func DrawImage(target draw.Image, imageToApply image.Image, pos image.Point) {
rect := imageToApply.Bounds()
for x := rect.Min.X; x < rect.Max.X; x++ {
for y := rect.Min.Y; y < rect.Max.Y; y++ {
target.Set(x+pos.X, y+pos.Y, imageToApply.At(x, y))
}
}
}
func FillRect(img draw.Image, rect *image.Rectangle, c color.Color) {
for x := rect.Min.X; x < rect.Max.X; x++ {
for y := rect.Min.Y; y < rect.Max.Y; y++ {

20
example/client/main.go
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@ -17,6 +17,9 @@ import (
func main() {
runtime.GOMAXPROCS(4)
framerate := 12
runWithProfiler := false
// Establish TCP connection to VNC server.
nc, err := net.DialTimeout("tcp", os.Args[1], 5*time.Second)
if err != nil {
@ -61,13 +64,15 @@ func main() {
}
// out, err := os.Create("./output" + strconv.Itoa(counter) + ".jpg")
// if err != nil {
// fmt.Println(err)
// fmt.Println(err)p
// os.Exit(1)
// }
vcodec := &encoders.MJPegImageEncoder{Quality: 60, Framerate: 12}
//vcodec := &encoders.X264ImageEncoder{FFMpegBinPath:"./ffmpeg"}
//vcodec := &encoders.VP8ImageEncoder{FFMpegBinPath:"./ffmpeg"}
//vcodec := &encoders.DV9ImageEncoder{FFMpegBinPath:"./ffmpeg"}
//vcodec := &encoders.MJPegImageEncoder{Quality: 60 , Framerate: framerate}
//vcodec := &encoders.X264ImageEncoder{FFMpegBinPath: "./ffmpeg", Framerate: framerate}
//vcodec := &encoders.HuffYuvImageEncoder{FFMpegBinPath: "./ffmpeg", Framerate: framerate}
vcodec := &encoders.QTRLEImageEncoder{FFMpegBinPath: "./ffmpeg", Framerate: framerate}
//vcodec := &encoders.VP8ImageEncoder{FFMpegBinPath:"./ffmpeg", Framerate: framerate}
//vcodec := &encoders.DV9ImageEncoder{FFMpegBinPath:"./ffmpeg", Framerate: framerate}
//counter := 0
//vcodec.Init("./output" + strconv.Itoa(counter))
@ -98,7 +103,7 @@ func main() {
vnc.EncPointerPosPseudo,
vnc.EncCopyRect,
vnc.EncTight,
//vnc.EncZRLE,
vnc.EncZRLE,
//vnc.EncHextile,
//vnc.EncZlib,
//vnc.EncRRE,
@ -113,7 +118,7 @@ func main() {
vcodec.Encode(screenImage.Image)
timeTarget := timeStart.Add((1000 / 12) * time.Millisecond)
timeTarget := timeStart.Add((1000 / time.Duration(framerate)) * time.Millisecond)
timeLeft := timeTarget.Sub(time.Now())
if timeLeft > 0 {
time.Sleep(timeLeft)
@ -130,7 +135,6 @@ func main() {
frameBufferReq := 0
timeStart := time.Now()
runWithProfiler := false
if runWithProfiler {
profFile := "prof.file"
f, err := os.Create(profFile)

42
example/file-reader/main.go
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@ -1,15 +1,18 @@
package main
import (
"image"
"os"
"path/filepath"
"time"
vnc "vnc2video"
"vnc2video/encoders"
"vnc2video/logger"
)
func main() {
framerate := 10
speedupFactor := 3.6
fastFramerate := int(float64(framerate) * speedupFactor)
if len(os.Args) <= 1 {
logger.Errorf("please provide a fbs file name")
@ -22,6 +25,8 @@ func main() {
encs := []vnc.Encoding{
&vnc.RawEncoding{},
&vnc.TightEncoding{},
&vnc.CopyRectEncoding{},
&vnc.ZRLEEncoding{},
}
fbs, err := vnc.NewFbsConn(
@ -34,14 +39,17 @@ func main() {
}
//launch video encoding process:
vcodec := &encoders.X264ImageEncoder{FFMpegBinPath: "./ffmpeg"}
vcodec := &encoders.X264ImageEncoder{FFMpegBinPath: "./ffmpeg", Framerate: framerate}
//vcodec := &encoders.DV8ImageEncoder{}
//vcodec := &encoders.DV9ImageEncoder{}
dir, err := filepath.Abs(filepath.Dir(os.Args[0]))
logger.Tracef("current dir: %s", dir)
go vcodec.Run("./output.mp4")
screenImage := image.NewRGBA(image.Rect(0, 0, int(fbs.Width()), int(fbs.Height())))
//screenImage := image.NewRGBA(image.Rect(0, 0, int(fbs.Width()), int(fbs.Height())))
screenImage := vnc.NewVncCanvas(int(fbs.Width()), int(fbs.Height()))
screenImage.DrawCursor = false
for _, enc := range encs {
myRenderer, ok := enc.(vnc.Renderer)
@ -50,11 +58,33 @@ func main() {
}
}
msgReader := vnc.NewFBSPlayHelper(fbs)
go func() {
frameMillis := (1000.0 / float64(fastFramerate)) - 2 //a couple of millis, adjusting for time lost in software commands
frameDuration := time.Duration(frameMillis * float64(time.Millisecond))
//logger.Error("milis= ", frameMillis)
for {
timeStart := time.Now()
vcodec.Encode(screenImage.Image)
timeTarget := timeStart.Add(frameDuration)
timeLeft := timeTarget.Sub(time.Now())
//.Add(1 * time.Millisecond)
if timeLeft > 0 {
time.Sleep(timeLeft)
//logger.Error("sleeping= ", timeLeft)
}
}
}()
msgReader := vnc.NewFBSPlayHelper(fbs)
//loop over all messages, feed images to video codec:
for {
msgReader.ReadFbsMessage()
vcodec.Encode(screenImage)
_, err := msgReader.ReadFbsMessage(true, speedupFactor)
//vcodec.Encode(screenImage.Image)
if err != nil {
os.Exit(-1)
}
//vcodec.Encode(screenImage)
}
}

35
fbs-connection.go
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@ -83,14 +83,14 @@ func (c *FbsConn) Wait() {}
func (c *FbsConn) SetProtoVersion(string) {}
func (c *FbsConn) SetSecurityHandler(SecurityHandler) error { return nil }
func (c *FbsConn) SecurityHandler() SecurityHandler { return nil }
func (c *FbsConn) GetEncInstance(typ EncodingType) Encoding {
func (c *FbsConn) GetEncInstance(typ EncodingType) Encoding {
for _, enc := range c.encodings {
if enc.Type() == typ {
return enc
}
}
return nil
}
}
type VncStreamFileReader interface {
io.Reader
@ -116,7 +116,6 @@ func NewFbsConn(filename string, encs []Encoding) (*FbsConn, error) {
return nil, err
}
//NewFbsReader("/Users/amitbet/vncRec/recording.rbs")
initMsg, err := fbs.ReadStartSession()
if err != nil {
@ -166,36 +165,42 @@ func NewFBSPlayHelper(r *FbsConn) *FBSPlayHelper {
// return nil
// }
func (h *FBSPlayHelper) ReadFbsMessage() ServerMessage {
func (h *FBSPlayHelper) ReadFbsMessage(SyncWithTimestamps bool, SpeedFactor float64) (ServerMessage, error) {
var messageType uint8
//messages := make(map[uint8]ServerMessage)
fbs := h.Conn
//conn := h.Conn
err := binary.Read(fbs, binary.BigEndian, &messageType)
if err != nil {
logger.Error("TestServer.NewConnHandler: Error in reading FBS: ", err)
return nil
logger.Error("FBSConn.NewConnHandler: Error in reading FBS: ", err)
return nil, err
}
startTimeMsgHandling := time.Now()
//IClientConn{}
//binary.Write(h.Conn, binary.BigEndian, messageType)
msg := h.serverMessageMap[messageType]
if msg == nil {
logger.Error("TestServer.NewConnHandler: Error unknown message type: ", messageType)
return nil
logger.Error("FBSConn.NewConnHandler: Error unknown message type: ", messageType)
return nil, err
}
//read the actual message data
//err = binary.Read(fbs, binary.BigEndian, &msg)
parsedMsg, err := msg.Read(fbs)
if err != nil {
logger.Error("TestServer.NewConnHandler: Error in reading FBS message: ", err)
return nil
logger.Error("FBSConn.NewConnHandler: Error in reading FBS message: ", err)
return nil, err
}
timeSinceStart := int(time.Now().UnixNano()/int64(time.Millisecond)) - h.startTime
timeToSleep := fbs.CurrentTimestamp() - timeSinceStart
if timeToSleep > 0 {
time.Sleep(time.Duration(timeToSleep) * time.Millisecond)
millisSinceStart := int(startTimeMsgHandling.UnixNano()/int64(time.Millisecond)) - h.startTime
adjestedTimeStamp := float64(fbs.CurrentTimestamp()) / SpeedFactor
millisToSleep := adjestedTimeStamp - float64(millisSinceStart)
if millisToSleep > 0 && SyncWithTimestamps {
time.Sleep(time.Duration(millisToSleep) * time.Millisecond)
} else if millisToSleep < -450 {
logger.Errorf("rendering time is noticeably off, change speedup factor: videoTimeLine: %f, currentTime:%d, offset: %f", adjestedTimeStamp, millisSinceStart, millisToSleep)
}
return parsedMsg
return parsedMsg, nil
}

4
fbs-reader.go
View File

@ -154,7 +154,7 @@ func (fbs *FbsReader) ReadSegment() (*FbsSegment, error) {
//read length
err := binary.Read(reader, binary.BigEndian, &bytesLen)
if err != nil {
logger.Error("FbsReader.ReadStartSession: read len, error reading rbs file: ", err)
logger.Error("FbsReader.ReadSegment: reading len, error reading rbs file: ", err)
return nil, err
}
@ -164,7 +164,7 @@ func (fbs *FbsReader) ReadSegment() (*FbsSegment, error) {
bytes := make([]byte, paddedSize)
_, err = reader.Read(bytes)
if err != nil {
logger.Error("FbsReader.ReadSegment: read bytes, error reading rbs file: ", err)
logger.Error("FbsReader.ReadSegment: reading bytes, error reading rbs file: ", err)
return nil, err
}

3
handlers.go
View File

@ -149,6 +149,7 @@ func (*DefaultClientSecurityHandler) Handle(c Conn) error {
err := secType.Auth(c)
if err != nil {
logger.Error("Authentication error: ", err)
return err
}
@ -290,7 +291,7 @@ func (*DefaultClientServerInitHandler) Handle(c Conn) error {
c.SetHeight(srvInit.FBHeight)
//telling the server to use 32bit pixels (with 24 dept, tight standard format)
pixelMsg:=SetPixelFormat{PF: PixelFormat32bit}
pixelMsg := SetPixelFormat{PF: PixelFormat32bit}
pixelMsg.Write(c)
c.SetPixelFormat(PixelFormat32bit)
//c.SetPixelFormat(srvInit.PixelFormat)