拍视频
代码语言：javascript复制cordova plugin add cordova-plugin-media-capturejs调用片段
代码语言：javascript复制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！nn"
"文件名：" mediaFiles[i].name "n"
"大小：" mediaFiles[i].size "nn"
"localURL地址：" mediaFiles[i].localURL "nn"
"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
代码语言：javascript复制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
代码语言：javascript复制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
代码语言：javascript复制cordova plugin add cordova-plugin-video-editorthis example uses the cordova media capture plugin
代码语言：javascript复制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
代码语言：javascript复制npm i cordova-plugin-video-editor代码语言：javascript复制我建议将 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
