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• How to copy a file open from open dialog to other location in vb.net

  4 juillet 2017, par Silvia Fonseca

  I have start a new application that converts video to image and then image to gif
  every thing is ok if i put my video in side of the same folder but if i not put my video in the same folder of the project the ffmpeg its says no such file or directory. wen i click to chose my file with openfiledialog , how can i copy or move my chose video to the correct directory in this case C :\avitogifconverter

  I have try to move the file to other location but wen i try to move the file to a different location its say i can not find the directory but the directory exist. what i have miss here this is the code

  This is my code

  Imports System.Diagnostics
  
  Imports System.ComponentModel
  
  Imports System
  
  Imports System.IO
  
  Imports System.IO.Compression
  
  Imports System.Windows.Forms
  
  Imports System.Net
  
  
  
  Public Class Form1
  
  Dim fpsx = 10
  
  Dim video = ""
  
  Dim startInfo As New ProcessStartInfo("ffmpeg.exe")
  
  Dim frame As Long 'individual frames
  
  Dim tempdir As String = "C:\avitogifconverter\" ' images temp directory
  
  Dim DestPath As String = "C:\avitogifconverter\"
  
  Public Declare Auto Function FindWindowNullClassName Lib "user32.dll" Alias "FindWindow" (ByVal lpClassname As Integer, ByVal lpWindownName As String) As Integer
  
  Dim Counter As Integer = 0
  
  
  
  Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
  
      My.Computer.FileSystem.CreateDirectory(tempdir)
  
      TextBox1.Text = "exp:-->video.avi or webm or flv"
  
      TextBox1.Clear()
  
      TextBox2.Text = fpsx
  
  
  
  
  
  End Sub
  
  
  
  
  
  Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
  
      fpsx = TextBox2.Text
  
      TextBox2.Text = fpsx
  
  
  
      Dim p As Process = Process.Start("cmd", "/k ffmpeg.exe -i " + TextBox1.Text + " -framerate 5/1 -filter:v fps=" + TextBox2.Text + " C:\avitogifconverter\out%02d.jpg")
  
      p.WaitForExit()
  
  
  
      If p.HasExited Then
  
          MsgBox("The Extraction Are Finish...")
  
      End If
  
  
  
  End Sub
  
  
  
  Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
  
  
  
  End Sub
  
  
  
  Private Sub Button2_Click(sender As Object, e As EventArgs)
  
  
  
  End Sub
  
  
  
  Private Sub Button3_Click(sender As Object, e As EventArgs) Handles Button3.Click
  
  
  
  
  
      If (OpenFileDialog1.ShowDialog = Windows.Forms.DialogResult.OK) Then
  
          'TextBox1.Text = OpenFileDialog1.FileName
  
          'TextBox1.Text = System.IO.Path.GetFileName(OpenFileDialog1.FileName)
  
          TextBox1.Text = System.IO.Path.GetDirectoryName(OpenFileDialog1.FileName)
  
          Dim newdialog As New OpenFileDialog()
  
          If newdialog.ShowDialog() = DialogResult.OK Then
  
              System.IO.File.Copy(newdialog.FileName, tempdir)
  
              MessageBox.Show(System.IO.Path.GetDirectoryName(newdialog.FileName) & "\" & System.IO.Path.GetFileName(newdialog.FileName))
  
          End If
  
      End If
  
      If TextBox1.Text = Nothing Then
  
          Return
  
      End If
  
      If TextBox1.Text <> Nothing Then
  
          'My.Computer.FileSystem.CopyFile(TextBox1.Text, DestPath)
  
      End If
  
  
  
  End Sub
  
  
  
  Private Sub Button4_Click(sender As Object, e As EventArgs) Handles Button4.Click
  
      Dim args As String 'declare args
  
      args = " -i C:\avitogifconverter\out%02d.jpg -r 10 C:\avitogifconverter\out.gif "
  
      'args = " -i C:\avitogifconverter\out%02d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p C:\avitogifconverter\out.mp4 "
  
      Dim proc As New Process
  
      Dim proci As New ProcessStartInfo
  
      proci.FileName = My.Application.Info.DirectoryPath & "\ffmpeg.exe"
  
      proci.Arguments = args
  
      proci.WindowStyle = ProcessWindowStyle.Hidden
  
      proci.CreateNoWindow = True
  
      proci.UseShellExecute = False
  
      proc.StartInfo = proci
  
      proc.Start()
  
      Do Until proc.HasExited = True
  
          Me.Text = "Saving"
  
      Loop
  
      Me.Text = "your video done"
  
  
  
      MsgBox("Done")
  
      Dim directoryName As String = "C:\avitogifconverter\"
  
      For Each deleteFile In Directory.GetFiles(directoryName, "*.jpg", SearchOption.TopDirectoryOnly)
  
          File.Delete(deleteFile)
  
      Next
  
  
  
      'IO.Directory.Delete(tempdir, True)
  
  End Sub
  
  
  
  Private Sub Button5_Click(sender As Object, e As EventArgs) Handles Button5.Click
  
      Form2.Show()
  
  
  
  End Sub
  
  End Class

• Using Node.js module fluent-ffmpeg to convert video but my files end up corrupt

  28 juin 2017, par El Guapo

  i am writing a node based media encoding tool and have found a few good node packages that will help me to do this, but the output files are either totally corrupt or it only encodes half the video.

  The main node package i am using is fluent-ffmpeg, and i am trying it with the following code :

  var ffmpeg = require('fluent-ffmpeg');
  
  
  
  var proc = new ffmpeg({ source: 'uploads/robocop-tlr1_h480p.mov', nolog: false})
  
    .withVideoCodec('libx264')
  
    .withVideoBitrate(800)
  
    .withAudioCodec('libvo_aacenc')
  
    .withAudioBitrate('128k')
  
    .withAudioChannels(2)
  
    .toFormat('mp4')
  
    .saveToFile('output/robocop.mp4',
  
      function(retcode, error){
  
          console.log('file has been converted succesfully');
  
  });

  There is not a problem with the source video as i encoded it just fine using FFmpeg normally with the following comand line string (i run it from a batch file) :

  "c:\ffmpeg\bin\ffmpeg.exe" -i %1 -acodec libvo_aacenc -b:a 128k -ac 2 -vcodec libx264 -b:v 800k -f mp4 "../output/robocop2.mp4"

  Any ideas what i am doing wrong here ?

• working ffmpeg command fails when using in nginx with rtmp module

  7 juin 2017, par Rafael Linux User

  I have a tested code I did in a "bash" file. It works perfect on shell. I change only params to get it to work with nginx rtmp module, but ffmpeg says always and understandable error. This is the code :

  exec_push ffmpeg -re -y -i rtmp://localhost:1935/live/$name  \
  
                              -c:v libx264 -c:a aac  \
  
                              -g 24 -keyint_min 24   -preset veryfast -tune zerolatency -movflags +faststart -vsync passthrough  \
  
                              -filter_complex '[0:v]format=pix_fmts=yuv420p,split=3[in1][in2][in3];[in1]scale=320:-2[320x];[in2]scale=640:-2[HQ640x];[in3]scale=1280:-2[HD1280x];[0:a]aresample=44100[audio]'  \
  
                              -map '[320x]'       -profile:v baseline -level 3.0 -crf 31 -maxrate 170k -bufsize 170k      -f mp4 rtmp://localhost:1935/rtmp_hls/$name_320x  \
  
                              -map '[HQ640x]'     -profile:v baseline -level 3.1 -crf 25 -maxrate 1000k -bufsize 1000k    -f mp4 rtmp://localhost:1935/rtmp_hls/$name_HQ640x  \
  
                              -map '[HD1280x]'    -profile:v main -level 3.1 -crf 19 -maxrate 4000k -bufsize 4000k        -f mp4 rtmp://localhost:1935/rtmp_hls/$name_HD1280x  \
  
                              -map '[audio]'      -b 128k                                                                 -f mp4 rtmp://localhost:1935/rtmp_hls/$name_audio 2>>/var/www/html/ffmpeg-live-output-$name.log;

  And this is the error launched by mmpeg

  ffmpeg version 3.2.4-1~bpo8+1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.9.2 (Debian 4.9.2-10)
  
    configuration: --prefix=/usr --extra-version='1~bpo8+1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --disable-libebur128 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  
    libavutil      55. 34.101 / 55. 34.101
  
    libavcodec     57. 64.101 / 57. 64.101
  
    libavformat    57. 56.101 / 57. 56.101
  
    libavdevice    57.  1.100 / 57.  1.100
  
    libavfilter     6. 65.100 /  6. 65.100
  
    libavresample   3.  1.  0 /  3.  1.  0
  
    libswscale      4.  2.100 /  4.  2.100
  
    libswresample   2.  3.100 /  2.  3.100
  
    libpostproc    54.  1.100 / 54.  1.100
  
  [flv @ 0x55e430547740] video stream discovered after head already parsed
  
  [flv @ 0x55e430547740] audio stream discovered after head already parsed
  
  Input #0, flv, from 'rtmp://localhost:1935/live/directo':
  
    Metadata:
  
      Server          : NGINX RTMP (github.com/sergey-dryabzhinsky/nginx-rtmp-module)
  
      displayWidth    : 1280
  
      displayHeight   : 720
  
      fps             : 24
  
      profile         : 
  
      level           : 
  
    Duration: 00:00:00.00, start: 26.023000, bitrate: N/A
  
      Stream #0:0: Video: h264 (Constrained Baseline), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 24.42 fps, 24 tbr, 1k tbn, 48 tbc
  
      Stream #0:1: Audio: aac (LC), 44100 Hz, mono, fltp
  
  [NULL @ 0x55e4305e0b40] Unable to find a suitable output format for '
  
  '
  
  
  
  : Invalid argument

  Does anyone could help me ?

  Thank you