Question

net MVC4应用。如何在我的asp.net mvc4应用程序中生成视频文件。我有一系列URL，这些URL是base64格式的图像序列，从canvas输出生成。请建议我控制器代码。

Answer 1

以下是发送画布数据的ajax和接收它的控制器代码：

// Send the canvas image to the server using ajax
// You can modify this ajax to fit your needs,

var canvas=getElementById("yourCanvas");
var image = canvas.toDataURL("image/png");
image = image.replace('data:image/png;base64,', '');

$.ajax({
    type: 'POST',
    url: 'yourController/UploadImage',
    data: '{ "imageData" : "' + image + '" }',
    contentType: 'application/json; charset=utf-8',
    dataType: 'json',
    success: function(msg){ console.log(msg); }
});


// receive the 64bit encoded string in the controller
// I just convert it to an Image,
// but you can do what you want with the MemoryStream

[HttpPost]
public ActionResult UploadImage(string imageData)
{
    byte[] byteArray = System.Convert.FromBase64String(imageData);

    // convert to an image (or do whatever else you need to do)
    Image image;
    using(MemoryStream s=new MemoryStream(byteArray){
        image=Image.FromStream(ms);
    }
    return("done");
}

base64图像序列到视频输出文件

1 个答案: