PhoneGap / Cordova iOS：捕获持续时间限制的视频（即30秒） [英] PhoneGap/Cordova iOS: capture video with a duration limit (ie. 30 seconds)

问题描述

我想限制视频捕获到30秒。现在PhoneGap文档说明了以下iOS实现：

I would like to limit video capturing to 30 seconds. As of now the PhoneGap documentation says the following of iOS implementation:

持续时间参数不受支持，记录长度不能以编程方式限制。 >

"The duration parameter is not supported. Recording lengths cannot be limited programmatically."

我发现这个帖子似乎给一个纯客观的C实现的解决方案：

I did find this post which seems to give the solution for a purely objective C implementation:

a href =http://stackoverflow.com/questions/5838774/iphone-5-seconds-video-capture> iPhone：5秒视频捕获

iPhone: 5 seconds video capture

问题是：这是可以轻松地做成一个phonegap插件或有一些其他原因phonegap无法实现这一点吗？如果你认为它可以做 - 任何信息指向我正确的方向是非常感谢！感谢：）

The question is: Is this something that could "easily" be made into a phonegap plugin or is there some other reason phonegap hasn't been able to implement this? If you think it can be done - any information pointing me in the right direction is much appreciated! Thanks :)

推荐答案

我试图解决相同的问题，可能有一个解决方案：

I'm trying to solve the same problem and may have a solution:

capture.captureVideo（ ）函数返回 MediaFile 的数组对象。这些对象具有 MediaFile.getFormatData（）方法，它告诉你文件的持续时间，因此你可以拒绝该文件，如果太长...

The capture.captureVideo() function returns an array of MediaFile objects. Those objects have a MediaFile.getFormatData() method that tells you what the duration of the file is and therefore you could reject the file if its too long...

这里是我的解决方案：

 navigator.device.capture.captureVideo(function(mediaFiles) {

                mediaFiles[0].getFormatData(function(data) {

                    if(data.duration > 30) {
                        /* Tell the user the video is too long */
                    } else {
                        /* Video is less than the max duration...all good */
                    }
                });

        }, function(error) { /* An error occured */ },
null);

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