{"id":5034,"date":"2023-05-11T12:05:44","date_gmt":"2023-05-11T04:05:44","guid":{"rendered":"https:\/\/app.applebyme.cn\/cloud\/appshangjia\/5034.html"},"modified":"2023-05-11T12:05:44","modified_gmt":"2023-05-11T04:05:44","slug":"ios%e5%bc%80%e5%8f%91-%e5%bd%95%e5%88%b6%e6%8e%a7%e4%bb%b6%e6%b3%a8%e6%84%8f%e7%82%b9%e6%9c%89%e4%bb%80%e4%b9%88%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/app.applebyme.cn\/cloud\/appshangjia\/5034.html","title":{"rendered":"ios\u5f00\u53d1 \u5f55\u5236\u63a7\u4ef6\u6ce8\u610f\u70b9\u6709\u4ec0\u4e48\uff1f"},"content":{"rendered":"

\u5728 iOS \u5f00\u53d1\u4e2d\uff0c\u5f55\u5236\u63a7\u4ef6\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u8ba9\u7528\u6237\u5f55\u5236\u97f3\u9891\u3001\u89c6\u9891\u4ee5\u53ca\u5c4f\u5e55\u64cd\u4f5c\u7b49\u5185\u5bb9\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u5230\u8bbe\u5907\u4e2d\u6216\u4e0a\u4f20\u81f3\u670d\u52a1\u5668\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406\u4ee5\u53ca\u8be6\u7ec6\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n

\u4e00\u3001\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406<\/p>\n

\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406\u4e3b\u8981\u6d89\u53ca\u5230\u97f3\u89c6\u9891\u91c7\u96c6\u3001\u7f16\u7801\u3001\u5c01\u88c5\u7b49\u6280\u672f\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u5f55\u5236\u63a7\u4ef6\u901a\u8fc7\u8c03\u7528\u8bbe\u5907\u7684\u6444\u50cf\u5934\u3001\u9ea6\u514b\u98ce\u7b49\u786c\u4ef6\u8bbe\u5907\uff0c\u91c7\u96c6\u97f3\u89c6\u9891\u6570\u636e\uff0c\u7136\u540e\u5bf9\u91c7\u96c6\u5230\u7684\u6570ios\u63cf\u8ff0\u6587\u4ef6\u5728\u7ebf\u751f\u6210<\/a>\u636e\u8fdb\u884c\u7f16\u7801\uff0c\u6700\u540e\u5c06\u7f16\u7801\u540e\u7684\u6570\u636e\u5c01\u88c5\u6210\u7279\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u4fdd\u5b58\u6216\u4e0a\u4f20\u3002<\/p>\n

\u5728 iOS \u5f00\u53d1\u4e2d\uff0c\u97f3\u89c6\u9891\u91c7\u96c6\u53ef\u4ee5\u901a\u8fc7 AVFoundation \u6846\u67b6\u6765\u5b9e\u73b0\uff0c\u8be5\u6846\u67b6\u63d0\u4f9b\u4e86\u4e00\u7cfb\u5217\u7684\u7c7b\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u65b9\u4fbf\u5730\u8fdb\u884c\u97f3\u89c6\u9891\u91c7\u96c6\u3001\u5904\u7406\u548c\u64ad\u653e\u7b49\u64cd\u4f5c\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u901a\u8fc7 AVCaptureDevice \u7c7b\u6765\u8bbf\u95ee\u8bbe\u5907\u7684\u6444\u50cf\u5934\u548c\u9ea6\u514b\u98ce\u7b49\u786c\u4ef6\u8bbe\u5907\uff0c\u901a\u8fc7 AVCaptureSession \u7c7b\u6765\u7ba1\u7406\u97f3\u89c6\u9891\u91c7\u96c6\u4f1a\u8bdd\uff0c\u901a\u8fc7 AVCaptureVideoDataOutput \u548c AVCaptureAudioDataOutput \u7c7b\u6765\u83b7\u53d6\u91c7\u96c6\u5230\u7684\u97f3\u89c6\u9891\u6570\u636e\u3002<\/p>\n

\u7f16\u7801\u662f\u5c06\u91c7\u96c6\u5230\u7684\u97f3\u89c6\u9891\u6570\u636e\u8f6c\u6362\u6210\u7279<\/p>\n

<\/figure>\n<\/p>\n

\u5b9a\u7684\u7f16\u7801\u683c\u5f0f\uff0c\u4ee5\u4fbf\u4e8e\u4fdd\u5b58\u6216\u4e0a\u4f20\u3002\u5728 iOS \u5f00\u53d1\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 VideoToolbox \u548c AudioToolbox \u6846\u67b6\u63d0\u4f9b\u7684\u7f16\u7801\u5668\u6765\u5b8c\u6210\u97f3\u89c6\u9891\u7f16\u7801\u64cd\u4f5c\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u4f7f\u7528 VTCompressionSessionRef \u548c AudioConverterRef \u7c7b\u6765\u521b\u5efa\u7f16\u7801\u4f1a\u8bdd\uff0c\u5e76\u5c06\u91c7\u96c6\u5230\u7684\u97f3\u89c6\u9891\u6570\u636e\u8f93\u5165\u5230\u4f1a\u8bdd\u4e2d\u8fdb\u884c\u7f16\u7801\u3002<\/p>\n

\u5c01\u88c5\u662f\u5c06\u7f16\u7801\u540e\u7684\u97f3\u89c6\u9891\u6570\u636e\u6309\u7167\u7279\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u5c01\u88c5\uff0c\u4ee5\u4fbf\u4e8e\u4fdd\u5b58\u6216\u4e0a\u4f20\u3002\u5728 iOS \u5f00\u53d1\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 AVFoundation \u6846\u67b6\u63d0\u4f9b\u7684 AVAssetWriter \u7c7b\u6765\u5b8c\u6210\u97f3\u89c6\u9891\u5c01\u88c5\u64cd\u4f5c\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u53ef\u4ee5\u901a\u8fc7\u521b\u5efa AVAssetWriter \u7c7b\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff0c\u5e76\u5c06\u7f16\u7801\u540e\u7684\u97f3\u89c6\u9891\u6570\u636e\u5199\u5165\u5230\u5176\u63d0\u4f9b\u7684 AVAssetWriterInput \u7c7b\u4e2d\uff0c\u6700\u7ec8\u5c06\u5199\u5165\u7684\u6570\u636e\u5c01\u88c5\u6210\u7279\u5b9a\u7684\u683c\u5f0f\u8fdb\u884c\u4fdd\u5b58\u6216\u4e0a\u4f20\u3002<\/p>\n

\u4e8c\u3001\u5f55\u5236\u63a7\u4ef6\u7684\u5b9e\u73b0<\/p>\n

\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u5982\u4f55\u4f7f\u7528 AVFoundation \u6846\u67b6\u6765\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u5f55\u5236\u63a7\u4ef6\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u6211\u4eec\u5c06\u5b9e\u73b0\u4e00\u4e2a\u53ef\u4ee5\u5f55\u5236\u89c6\u9891\u5e76\u4fdd\u5b58\u5230\u76f8\u518c\u7684\u529f\u80fd\u3002<\/p>\n

1. \u521b\u5efa AVCaptureSession \u5b9e\u4f8b\u5bf9\u8c61<\/p>\n

\u9996\u5148\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a AVCaptureSession \u5b9e\u4f8b\u5bf9\u8c61\uff0c\u7528\u4e8e\u7ba1\u7406\u97f3\u89c6\u9891\u91c7\u96c6\u4f1a\u8bdd\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

AVCaptureSession *captureSession = [[AVCaptureSession alloc] init];<\/p>\n

“`<\/p>\n

2. \u914d\u7f6e AVCaptureSession \u5b9e\u4f8b\u5bf9\u8c61<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u5bf9 AVCaptureSession \u5b9e\u4f8b\u5bf9\u8c61\u8fdb\u884c\u914d\u7f6e\uff0c\u5305\u62ec\u8bbe\u7f6e\u91c7\u96c6\u8d28\u91cf\u3001\u6dfb\u52a0\u89c6\u9891\u8f93\u5165\u8bbe\u5907\u548c\u97f3\u9891\u8f93\u5165\u8bbe\u5907\u7b49\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

\/\/ \u8bbe\u7f6e\u91c7\u96c6\u8d28\u91cf<\/p>\n

if ([captureSession canSetSessionPreset:AVCaptureSessionPreset1280x720]) {<\/p>\n

captureSession.sessionPreset = AVCaptureSessionPreset1280x720;<\/p>\n

}<\/p>\n

\/\/ \u6dfb\u52a0\u89c6\u9891\u8f93\u5165\u8bbe\u5907<\/p>\n

AVCaptureDevice *videoDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];<\/p>\n

NSError *error = nil;<\/p>\n

AVCaptureDeviceInput *videoInput = [AVCaptureDeviceInput deviceInputWithDevice:videoDevice error:&error];<\/p>\n

if (error) {<\/p>\n

NSLog(@”Error: %@”, error);<\/p>\n

} else {<\/p>\n

[captureSession addInput:videoInput];<\/p>\n

}<\/p>\n

\/\/ \u6dfb\u52a0\u97f3\u9891\u8f93\u5165\u8bbe\u5907<\/p>\n

AVCaptureDevice *audioDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeAudio];<\/p>\n

AVCaptureDeviceInput *audioInput = [AVCaptureDeviceInput deviceInputWithDevice:audioDevice error:&error];<\/p>\n

if (error) {<\/p>\n

NSLog(@”Error: %@”, error);<\/p>\n

} else {<\/p>\n

[captureSession addInput:audioInput];<\/p>\n

}<\/p>\n

“`<\/p>\n

3. \u6dfb\u52a0 AVCaptureVideoDataOutput \u5b9e\u4f8b\u5bf9\u8c61<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a AVCaptureVideoDataOutput \u5b9e\u4f8b\u5bf9\u8c61\uff0c\u7528\u4e8e\u83b7\u53d6\u91c7\u96c6\u5230\u7684\u89c6\u9891\u6570\u636e\u3002ios \u7a0b\u5e8f\u6253\u5305ipa<\/a>\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

AVCaptureVideoDataOutput *videoOutput = [[AVCaptureVideoDataOutput alloc] init];<\/p>\n

[videoOutput setSampleBufferDelegate:self queue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0)];<\/p>\n

[videoOutput setVideoSettings:@{(id)kCVPixelBufferPixelFormatTypeKey: @(kCVPixelFormatType_420YpCbCr8BiPlanarFullRange)}];<\/p>\n

[captureSession addOutput:videoOutput];<\/p>\n

“`<\/p>\n

\u5176\u4e2d\uff0c\u6211\u4eec\u5c06 AVCaptureVideoDataOutput \u5b9e\u4f8b\u5bf9\u8c61\u7684\u4ee3\u7406\u5bf9\u8c61\u8bbe\u7f6e\u4e3a\u5f53\u524d\u7c7b\uff0c\u5e76\u6307\u5b9a\u4ee3\u7406\u5bf9\u8c61\u6267\u884c\u7684\u7ebf\u7a0b\u3002<\/p>\n

4. \u6dfb\u52a0 AVCaptureMovieFileOutput \u5b9e\u4f8b\u5bf9\u8c61<\/p>\n

\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u9700\u8981\u6dfb\u52a0\u4e00\u4e2a AVCaptureMovieFileOutput \u5b9e\u4f8b\u5bf9\u8c61\uff0c\u7528\u4e8e\u5c06\u91c7\u96c6\u5230\u7684\u89c6\u9891\u6570\u636e\u4fdd\u5b58\u5230\u8bbe\u5907\u4e2d\u6216\u4e0a\u4f20\u81f3\u670d\u52a1\u5668\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

AVCaptureMovieFileOutput *movieOutput = [[AVCaptureMovieFileOutput alloc] init];<\/p>\n

[captureSession addOutput:movieOutput];<\/p>\n

“`<\/p>\n

5. \u5f00\u59cb\u5f55\u5236\u89c6\u9891<\/p>\n

\u73b0\u5728\uff0c\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86\u5f55\u5236\u63a7\u4ef6\u7684\u914d\u7f6e\uff0c\u63a5\u4e0b\u6765\u5c31\u53ef\u4ee5\u5f00\u59cb\u5f55\u5236\u89c6\u9891\u4e86\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

NSURL *fileURL = [NSURL fileURLWithPath:[NSTemporaryDirectory() stringByAppendingPathComponent:@”movie.mov”]];<\/p>\n

[movieOutput startRecordingToOutputFileURL:fileURL recordingDelegate:self];<\/p>\n

“`<\/p>\n

\u5176\u4e2d\uff0c\u6211\u4eec\u5c06\u5f55\u5236\u7684\u89c6\u9891\u4fdd\u5b58\u5230\u4e34\u65f6\u6587\u4ef6\u4e2d\uff0c\u5e76\u5c06 AVCaptureMovieFileOutput \u5b9e\u4f8b\u5bf9\u8c61\u7684\u4ee3\u7406\u5bf9\u8c61\u8bbe\u7f6e\u4e3a\u5f53\u524d\u7c7b\u3002<\/p>\n

6. \u505c\u6b62\u5f55\u5236\u89c6\u9891<\/p>\n

\u6700\u540e\uff0c\u5f53\u9700\u8981\u505c\u6b62\u5f55\u5236\u89c6\u9891\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u7528 AVCaptureMovieFileOutput \u5b9e\u4f8b\u5bf9\u8c61\u7684 stopRecording \u65b9\u6cd5\u505c\u6b62\u5f55\u5236\u3002\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n

“`<\/p>\n

[movieOutput stopRecording];<\/p>\n

“`<\/p>\n

\u81f3\u6b64\uff0c\u6211\u4eec\u5df2\u7ecf\u5b8c\u6210\u4e86\u4e00\u4e2a\u7b80\u5355\u7684\u5f55\u5236\u63a7\u4ef6\u7684\u5b9e\u73b0\u3002\u5f53\u7136\uff0c\u5b9e\u9645\u5f00\u53d1\u4e2d\u8fd8\u9700\u8981\u8003\u8651\u5f88\u591a\u7ec6\u8282\u95ee\u9898\uff0c\u4f8b\u5982\u89c6\u9891\u7684\u538b\u7f29\u3001\u88c1\u526a\u3001\u6c34\u5370\u7b49\u529f\u80fd\uff0c\u8fd9\u4e9b\u90fd\u9700\u8981\u6839\u636e\u5177\u4f53\u7684\u9700\u6c42\u8fdb\u884c\u5b9e\u73b0\u3002<\/p>\n

\u603b\u7ed3<\/p>\n

\u5f55\u5236\u63a7\u4ef6\u5728 iOS \u5f00\u53d1\u4e2d\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u8ba9\u7528\u6237\u5f55\u5236\u97f3\u9891\u3001\u89c6\u9891\u4ee5\u53ca\u5c4f\u5e55\u64cd\u4f5c\u7b49\u5185\u5bb9\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u5230\u8bbe\u5907\u4e2d\u6216\u4e0a\u4f20\u81f3\u670d\u52a1\u5668\u3002\u672c\u6587\u4ecb\u7ecd\u4e86\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406\u4ee5\u53ca\u8be6\u7ec6\u7684\u5b9e\u73b0\u65b9\u6cd5\uff0c\u5e0c\u671b\u5bf9 iOS \u5f00\u53d1\u7684\u521d\u5b66\u8005\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728 iOS \u5f00\u53d1\u4e2d\uff0c\u5f55\u5236\u63a7\u4ef6\u662f\u4e00\u4e2a\u975e\u5e38\u5e38\u89c1\u7684\u529f\u80fd\uff0c\u5b83\u53ef\u4ee5\u8ba9\u7528\u6237\u5f55\u5236\u97f3\u9891\u3001\u89c6\u9891\u4ee5\u53ca\u5c4f\u5e55\u64cd\u4f5c\u7b49\u5185\u5bb9\uff0c\u5e76\u5c06\u5176\u4fdd\u5b58\u5230\u8bbe\u5907\u4e2d\u6216\u4e0a\u4f20\u81f3\u670d\u52a1\u5668\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406\u4ee5\u53ca\u8be6\u7ec6\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002\u4e00\u3001\u5f55\u5236\u63a7\u4ef6\u7684\u539f\u7406\u5f55\u5236\u63a7<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[2773,6992,5956,3005,895],"class_list":["post-5034","post","type-post","status-publish","format-standard","hentry","category-appshangjia","tag-vueapk","tag-android","tag-5956","tag-3005","tag-895"],"_links":{"self":[{"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/posts\/5034","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/comments?post=5034"}],"version-history":[{"count":0,"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/posts\/5034\/revisions"}],"wp:attachment":[{"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/media?parent=5034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/categories?post=5034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/app.applebyme.cn\/cloud\/wp-json\/wp\/v2\/tags?post=5034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}