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@@ -29,41 +29,62 @@ class WebAR {
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navigator.mediaDevices
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.enumerateDevices()
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.then(devices => {
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- let index = 0;
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- devices.find(device => {
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+ // let index = 0;
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+ // devices.find(device => {
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+ // if (device.kind === "videoinput") {
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+ // const option = document.createElement("option");
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+ // console.log(device);
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+ // // 在iOS12.2上deviceId为空
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+ // if (device.deviceId == "") {
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+ // option.text =
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+ // device.label ||
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+ // "camera " + this.cameras[index];
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+ // option.value = JSON.stringify({
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+ // audio: false,
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+ // video: {
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+ // facingMode: {
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+ // exact: this.cameras[index]
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+ // }
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+ // }
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+ // });
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+ // index++;
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+ // } else {
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+ // option.text =
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+ // device.label ||
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+ // "camera " +
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+ // (videoDevice.length + 1).toString();
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+ // option.value = JSON.stringify({
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+ // audio: false,
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+ // video: {
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+ // deviceId: { exact: device.deviceId }
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+ // }
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+ // });
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+ // }
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+ // // 将摄像头信息存储在select元素中，方便切换前、后置摄像头
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+ // videoDevice.appendChild(option);
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+ // }
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+ // return false;
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+ // });
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+ devices.forEach(function(device) {
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if (device.kind === "videoinput") {
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+ console.log(
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+ device.kind +
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+ ": " +
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+ device.label +
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+ " id = " +
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+ device.deviceId
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+ );
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+
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const option = document.createElement("option");
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- console.log(device);
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- // 在iOS12.2上deviceId为空
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- if (device.deviceId == "") {
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- option.text =
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- device.label ||
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- "camera " + this.cameras[index];
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- option.value = JSON.stringify({
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- audio: false,
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- video: {
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- facingMode: {
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- exact: this.cameras[index]
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- }
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- }
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- });
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- index++;
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- } else {
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- option.text =
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- device.label ||
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- "camera " +
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- (videoDevice.length + 1).toString();
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- option.value = JSON.stringify({
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- audio: false,
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- video: {
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- deviceId: { exact: device.deviceId }
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- }
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- });
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- }
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- // 将摄像头信息存储在select元素中，方便切换前、后置摄像头
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+ option.text = device.label;
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+ option.value = JSON.stringify({
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+ audio: false,
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+ video: {
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+ deviceId: { exact: device.deviceId }
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+ }
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+ });
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videoDevice.appendChild(option);
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}
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- return false;
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});
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if (videoDevice.length === 0) {
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reject("没有可使用的视频设备");
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