Recherche avancée

Sur d’autres sites (4670)

• 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

• OpenCV compilation : How to specify the location of FFmpeg library with cmake

  6 juin 2017, par Beanocean

  I want to compile OpenCV-2.13.2 with gcc-4.8.2, but the version installed in system path is gcc-4.4.6. So I installed gcc-4.8.2 in /opt/compiler/gcc-4.8.2. I compiled FFmpeg successfully with gcc-4.8.2. When I tried to compile OpenCV, I met with some problems.

  In linking stage, there were some libraries can not be found by /opt/compiler/gcc-4.8.2/bin/ld. The error message is as follows :
  

  The missing libraries are related with FFmpeg, and I have installed FFmpeg in ~/local/lib. Then I checked the file module/core/CMakeFiles/opencv_pref_core.dir/link.txt, It shows as follows :
  

  The ld just did not search the path where I installed FFmpeg. I tried two methods :

  1. add FFmpeg path to env : export LD_LIBRARY_PATH=~/local/lib:$LD_LIBRARY_PATH ;
  2. add -D FFMPEG_INCLUDE_DIRS=~/local/include -D FFMPEG_LIBRARAY_DIRS=~/local/lib to cmake options

  They did not work at all.

• avcodec/vmnc : Check location before use

  21 mai 2017, par Michael Niedermayer

  avcodec/vmnc : Check location before use
  Fixes : runtime error : signed integer overflow : 65535 * 64256 cannot be represented in type 'int'
  
  Fixes : 1717/clusterfuzz-testcase-minimized-5491696676634624
  Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
  
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavcodec/vmnc.c