Merge pull request #16 from rohitggarg/master

Fixing execution model and making compatible with windows.
Added progress check flag, only open stderr if progress required.
Adding back the ffmpeg process cmd handle.
Fixed up Filter command.

README.md

@@ -39,10 +39,11 @@ func main() {
     	// Handle error...
 
 	// Start transcoder process
-	done, err := trans.Run()
+	done := trans.Run()
 
 	// This channel is used to wait for the process to end
-	<-done
+	err = <-done
+	// Handle error...
 
 }
 ```
@@ -59,28 +60,29 @@ func main() {
     	// Handle error...
 
 	// Start transcoder process
-	done, err := trans.Run()
+	done := trans.Run()
 
 	// Returns a channel to get the transcoding progress
-	progress, err := trans.Output()
+	progress := trans.Output()
 
 	// Example of printing transcoding progress
 	for msg := range progress {
 		fmt.Println(msg)
 	}
 
 	// This channel is used to wait for the transcoding process to end
-	<-done
+	err = <-done
 
 }
 ```
 # Progress properties
 ```golang
 type Progress struct {
-	FramesProcessed			string
-	CurrentTime			string
-	CurrentBitrate			string
-	Progress			float64
+	FramesProcessed string
+	CurrentTime     string
+	CurrentBitrate  string
+	Progress        float64
+	Speed           string
 }
 ```
 # Media setters
@@ -139,18 +141,18 @@ func main() {
 	trans.MediaFile().SetPreset("ultrafast")
 
 	// Start transcoder process
-	done, err := trans.Run()
+	done := trans.Run()
 
 	// Returns a channel to get the transcoding progress
-	progress, err := trans.Output()
+	progress := trans.Output()
 
 	// Example of printing transcoding progress
 	for msg := range progress {
 		fmt.Println(msg)
 	}
 
 	// This channel is used to wait for the transcoding process to end
-	<-done
+	err = <-done
 
 }
 ```

ffmpeg/ffmpeg.go

@@ -10,49 +10,33 @@ import (
 type Configuration struct {
   FfmpegBin  string
   FfprobeBin string
-  ExecCmd    string
-  ExecArgs   string
 }
 
 func Configure() (Configuration, error) {
   var outFFmpeg bytes.Buffer
   var outProbe bytes.Buffer
-
-  execCmd := utils.GetExec()
   execFFmpegCommand := utils.GetFFmpegExec()
   execFFprobeCommand := utils.GetFFprobeExec()
-  execArgs := utils.GetExecArgs()
 
-  cmdFFmpeg := exec.Command(execCmd, execArgs, execFFmpegCommand)
-  cmdProbe := exec.Command(execCmd, execArgs, execFFprobeCommand)
+  cmdFFmpeg := exec.Command(execFFmpegCommand[0], execFFmpegCommand[1])
+  cmdProbe := exec.Command(execFFprobeCommand[0], execFFprobeCommand[1])
 
   cmdFFmpeg.Stdout = &outFFmpeg
   cmdProbe.Stdout = &outProbe
 
-  err := cmdFFmpeg.Start()
-  if err != nil {
-    return Configuration{}, err
-  }
-
-  _, err = cmdFFmpeg.Process.Wait()
+  err := cmdFFmpeg.Run()
   if err != nil {
     return Configuration{}, err
   }
 
-  err = cmdProbe.Start()
+  err = cmdProbe.Run()
   if err != nil {
     return Configuration{}, err
   }
 
-  _, err = cmdProbe.Process.Wait()
-  if err != nil {
-    return Configuration{}, err
-  }
-
-  ffmpeg := strings.Replace(outFFmpeg.String(), "\n", "", -1)
-  fprobe := strings.Replace(outProbe.String(), "\n", "", -1)
-
-  cnf := Configuration{ffmpeg, fprobe, execCmd, execArgs}
+  ffmpeg := strings.Replace(outFFmpeg.String(), utils.LineSeparator(), "", -1)
+  fprobe := strings.Replace(outProbe.String(), utils.LineSeparator(), "", -1)
 
+  cnf := Configuration{ffmpeg, fprobe}
   return cnf, nil
 }