拍视频
cordova plugin add cordova-plugin-media-capture
js调用片段
function videoCapture() { //开始录像(最长录制时间:15秒) navigator.device.capture.captureVideo(onSuccess, onError, {duration: 15}); //录制成功 function onSuccess(mediaFiles) { var i, path, len; //遍历获取录制的文件(iOS只支持一次录制一个视频或音频) for (i = 0, len = mediaFiles.length; i < len; i += 1) { console.log(mediaFiles); path = mediaFiles[i].fullPath; alert("录制成功!\n\n" + "文件名:" + mediaFiles[i].name + "\n" + "大小:" + mediaFiles[i].size + "\n\n" + "localURL地址:" + mediaFiles[i].localURL + "\n\n" + "fullPath地址:" + path); } } //录制失败 function onError(error) { alert('录制失败!错误码:' + error.code); } }
captureVideo参数说明
captureVideo( onSuccess: (mediaFiles: MediaFile[]) => void, onError: (error: CaptureError) => void, options?: VideoOptions): void ; --------------------------- /** Encapsulates properties of a media capture file. */ interface MediaFile { /** The name of the file, without path information. */ name: string; /** The full path of the file, including the name. */ fullPath: string; /** The file's mime type */ type: string; /** The date and time when the file was last modified. */ lastModifiedDate: Date; /** The size of the file, in bytes. */ size: number; /** * Retrieves format information about the media capture file. * @param successCallback Invoked with a MediaFileData object when successful. * @param errorCallback Invoked if the attempt fails, this function. */ getFormatData( successCallback: (data: MediaFileData) => void, errorCallback?: () => void): void; } --------------------------- /** Encapsulates video capture configuration options. */ interface VideoOptions { /** * The maximum number of video clips the device's user can capture in a single * capture operation. The value must be greater than or equal to 1. */ limit?: number; /** The maximum duration of a video clip, in seconds. */ duration?: number; }
navigator.device.capture.captureVideo 输出的log
fullPath: "file:///storage/emulated/0/DCIM/Camera/VID_20190601_120049.mp4" lastModified: null lastModifiedDate: 1559361649000 localURL: "cdvfile://localhost/sdcard/DCIM/Camera/VID_20190601_120049.mp4" name: "VID_20190601_120049.mp4" size: 2092530 start: 0 type: "video/mp4"
本地压缩
Installation 安装
cordova plugin add cordova-plugin-video-editor
this example uses the cordova media capture plugin
navigator.device.capture.captureVideo( videoCaptureSuccess, videoCaptureError, { limit: 1, duration: 20 } ); function videoCaptureSuccess(mediaFiles) { // Wrap this below in a ~100 ms timeout on Android if // you just recorded the video using the capture plugin. // For some reason it is not available immediately in the file system. var file = mediaFiles[0]; var videoFileName = 'video-name-here'; // I suggest a uuid VideoEditor.transcodeVideo( videoTranscodeSuccess, videoTranscodeError, { fileUri: file.fullPath, outputFileName: videoFileName, outputFileType: VideoEditorOptions.OutputFileType.MPEG4, optimizeForNetworkUse: VideoEditorOptions.OptimizeForNetworkUse.YES, saveToLibrary: true, maintainAspectRatio: true, width: 640, height: 640, videoBitrate: 1000000, // 1 megabit audioChannels: 2, audioSampleRate: 44100, audioBitrate: 128000, // 128 kilobits progress: function(info) { console.log('transcodeVideo progress callback, info: ' + info); } } ); } function videoTranscodeSuccess(result) { // result is the path to the transcoded video on the device console.log('videoTranscodeSuccess, result: ' + result); } function videoTranscodeError(err) { console.log('videoTranscodeError, err: ' + err); }
cordova-plugin-video-editor源码
npm i cordova-plugin-video-editor
我建议将 maintainAspectRatio 设置为 true。 如果此选项为真,则可以提供任何宽度 / 高度,并且提供的高度将用于计算输出视频的新宽度。 如果您将 maintainAspectRatio 设置为 false,那么您很有可能会得到拉伸和 / 或扭曲的视频。 当 maintainAspectRatio 为 true-时,下面是 iOS 上使用的简化公式
aspectRatio = videoWidth / videoHeight; outputWidth = height * aspectRatio; outputHeight = outputWidth / aspectRatio;
默认输出路径为: /storage/emulated/0/Movies/HelloCordova