In the presentation code, the .hevc file called test.mp4 should be loaded with the function t() and output as a file called sample.mp4, but the video file is not generated.Why is this?
I want to know why the sample.mp4 file is not generated
Reference Site:
https://ffmpeg.xabe.net/docs.html
Windows 10 Visual Studio 2022 .Net 6.0
using Microsoft.VisualBasic;
using System;
using System.Collections.General;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Resources;
using Xabe.FFmpeg;
namespace HEVC_SimpleConverter
{
public partial class Form 1:Form
{
private async void()
{
string outputPath="sample.mp4";
IMediaInfo = wait FFmpeg.GetMediaInfo("test.mp4");
ISstream videoStream=mediaInfo.VideoStreams.FirstOrDefault()
?.SetCodec (VideoCodec.h264);
ISstream audioStream=mediaInfo.AudioStreams.FirstOrDefault()
?.SetCodec (AudioCodec.aac);
FFmpeg.Conversations.New()
.AddStream (audioStream, videoStream)
.SetOutput(outputPath)
.Start();
}
public Form 1()
{
InitializeComponent();
t();
Debug.WriteLine("aaaaa";
}
private void Form1_Load(object sender, EventArgse)
{
}
}
}
Since t is an asynchronous method, passing through Debug.WriteLine does not necessarily mean that t has been processed.Also, let's not do async void except for event handlers.
Best Practices for Asynchronous Programming
The reason is exactly what you said, but what should I do? The Form1_Load method, which is left empty every time I ask a question, is safe.
async Task(){
var outputPath="sample.mp4";
varmediaInfo = wait FFmpeg.GetMediaInfo("test.mp4");
var videoStream=mediaInfo.VideoStreams.FirstOrDefault()?SetCodec(VideoCodec.h264);
varaudioStream=mediaInfo.AudioStreams.FirstOrDefault()?SetCodec(AudioCodec.aac);
wait FFmpeg.Conversions.New()
.AddStream (audioStream, videoStream)
.SetOutput(outputPath)
.Start();
}
async void Form1_Load(object sender, EventArgse) {
wait ();
Debug.WriteLine("aaaaa";
}
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