/
recorder.go
190 lines (173 loc) · 4.65 KB
/
recorder.go
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package recorder
/*
#cgo pkg-config: libusb-1.0
#include <libusb.h>
*/
import "C"
import (
"context"
"errors"
"fmt"
"net"
"sync"
"time"
"github.com/LambdatestIncPrivate/ios-quicktime-capture/screencapture"
"github.com/LambdatestIncPrivate/ios-quicktime-capture/screencapture/coremedia"
"github.com/LambdatestIncPrivate/ios-quicktime-capture/screencapture/decoder"
"github.com/sirupsen/logrus"
)
type Recorder struct {
libUsbCtx *C.libusb_context
ctx context.Context
cancel context.CancelFunc
logger *logrus.Logger
wg sync.WaitGroup
device screencapture.IosDevice
quickTimeMode bool
}
func NewRecorder(logger *logrus.Logger, quickTimeMode bool) *Recorder {
r := &Recorder{logger: logger, quickTimeMode: quickTimeMode}
if quickTimeMode {
C.libusb_init(&r.libUsbCtx)
}
return r
}
func (r *Recorder) Close() {
r.cancel()
r.wg.Wait()
time.Sleep(1 * time.Second) // added on purpose to keep the program running until mp4 is generated
if r.quickTimeMode {
C.libusb_exit(r.libUsbCtx)
}
}
func (r *Recorder) ConfigureDevice(udid string) error {
device, err := findDevice(udid)
r.device = device
if err != nil {
return errors.New("no such device found")
}
r.ctx, r.cancel = context.WithCancel(context.Background())
r.wg = sync.WaitGroup{}
if !r.quickTimeMode {
return nil
}
r.deactivate()
return r.activate()
}
func (r *Recorder) deactivate() {
r.logger.Debugf("Disabling device: %v", r.device)
var err error
r.device, err = screencapture.DisableQTConfig(r.device)
if err != nil {
r.logger.Errorf("Error disabling QT config: %v", err)
return
}
}
// findDevice grabs the first device on the host for a empty --udid
// or tries to find the provided device otherwise
func findDevice(udid string) (screencapture.IosDevice, error) {
if udid == "" {
return screencapture.FindIosDevice("")
}
usbSerial, err := screencapture.ValidateUdid(udid)
if err != nil {
return screencapture.IosDevice{}, err
}
return screencapture.FindIosDevice(usbSerial)
}
// This command is for testing if we can enable the hidden Quicktime device config
func (r *Recorder) activate() error {
r.logger.Debugf("Enabling device: %v", r.device)
var err error
device, err := screencapture.EnableQTConfig(r.device)
if err != nil {
r.logger.Errorf("Error enabling QT config: %v", err)
return err
}
r.device = device
return nil
}
func (r *Recorder) RecordViaDevice(port int, address, outPath string) error {
decoder := decoder.NewDecoder(r.ctx, address, port, r.logger)
r.wg.Add(1)
go func() {
defer r.wg.Done()
err := decoder.Decode(outPath)
if err != nil {
r.logger.Errorf("error decoding: %v", err)
}
r.logger.Infof("Decoder stopped")
}()
r.wg.Add(1)
go func() {
defer r.wg.Done()
<-r.ctx.Done() // Blocks until the context is cancelled.
r.logger.Infof("Context cancelled, stopping server...")
}()
return nil
}
func (r *Recorder) Record(port int, outPath string) error {
ln, err := net.Listen("tcp", fmt.Sprintf(":%d", port))
if err != nil {
r.logger.Errorf("unable to start tcp server at port %d: %v", port, err)
return err
}
r.logger.Infof("Server listening on port %d", port)
decoder := decoder.NewDecoder(r.ctx, "", port, r.logger)
r.wg.Add(1)
go func() {
defer r.wg.Done()
err := decoder.Decode(outPath)
if err != nil {
r.logger.Errorf("error decoding: %v", err)
}
}()
r.wg.Add(1)
go func() {
defer r.wg.Done()
<-r.ctx.Done() // Blocks until the context is cancelled.
r.logger.Infof("Context cancelled, stopping server...")
ln.Close() // This will cause ln.Accept() to return an error.
}()
go func() {
for {
conn, err := ln.Accept()
if err != nil {
// Check if the error is because of the listener being closed.
select {
case <-r.ctx.Done():
r.logger.Infof("Server stopped due to context cancellation.")
return
default:
r.logger.Errorf("Error accepting connection: %s", err)
}
return
}
// Handle the connection in a new goroutine.
r.wg.Add(1)
go func() {
defer r.wg.Done()
defer conn.Close()
writer := coremedia.NewAVCustomWriter(conn)
r.startWithConsumer(writer)
}()
}
}()
return nil
}
func (r *Recorder) startWithConsumer(consumer screencapture.CmSampleBufConsumer) error {
adapter := screencapture.UsbAdapter{}
stopSignal := make(chan interface{})
r.waitForSigInt(stopSignal)
mp := screencapture.NewMessageProcessor(&adapter, stopSignal, consumer, true)
err := adapter.StartReading(r.device, &mp, stopSignal)
consumer.Stop()
return err
}
func (r *Recorder) waitForSigInt(stopSignalChannel chan interface{}) {
go func() {
<-r.ctx.Done()
var stopSignal interface{}
stopSignalChannel <- stopSignal
}()
}