无论如何我可以在 vb.net 中使用 ffmpeg 将多个 png 或 jpg 图像转换为 gif
我已经启动了一个新应用程序来从视频中捕获某些帧，但现在我想使用 ffmpeg 获取在 gif 图像中提取的所有帧。
到目前为止，这是我的代码:
我实际上已经准备好像这样尝试但没有成功
我做了一些更改，我得到了 gif 文件但处于空状态
到目前为止，这是我的代码
Imports System.Diagnostics
Imports System.ComponentModel
Imports System
Imports System.IO
Public Class Form1
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()
End Sub
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim p As Process = Process.Start("cmd", "/k ffmpeg.exe -i " + TextBox1.Text + " -filter:v fps=1/15 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) Handles Button2.Click
Label3.Text = "cmd" + "/k ffmpeg.exe -i " + TextBox1.Text + " -filter:v fps=1/15 C:\avi to gif converter\out%02d.jpg"
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)
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 = " -framerate 1/5 -i C:\avitogifconverter\out%02d.jpg -c:v libx264 -r 30 -pix_fmt yuv420p C:\avitogifconverter\out.gif "
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")
'IO.Directory.Delete(tempdir, True)
End Sub
End Class
最佳答案
事实上，我刚刚完成了代码，我终于发现它出了什么问题。
这是将 mp4 转换为 gif 的工作代码
所以我决定首先将图像转换为 mp4 并将 mp4 转换为 gif
我尝试将文件移动到其他位置，但是当我尝试将文件移动到其他位置时，它说我找不到目录但目录存在。
我在这里想念什么
这是代码
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
关于vb.net - 我找不到任何方法在 vb.net 中使用 ffmpeg 将多个 jpg 或 png 转换为 gif，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/44892952/