{"id":1001,"date":"2018-05-11T11:26:05","date_gmt":"2018-05-11T03:26:05","guid":{"rendered":"http:\/\/www.bijienetworks.com\/?p=1001"},"modified":"2018-05-11T11:30:50","modified_gmt":"2018-05-11T03:30:50","slug":"20180511airplay","status":"publish","type":"post","link":"https:\/\/www.bijienetworks.com\/news\/fields\/20180511airplay","title":{"rendered":"Airplay SDK\u2014Airplay sever\/Airplay\u955c\u50cf\u4f20\u8f93 \u7834\u89e3\u793a\u4f8b"},"content":{"rendered":"<p>AirPlay\u662f\u82f9\u679c\u516c\u53f8\u7684\u5728<span>iOS4.2<\/span>\u53ca<span>OS X Mountain Lion<\/span>\u4e2d\u52a0\u5165\u7684\u4e00\u79cd\u64ad\u653e\u6280\u672f\uff0c\u53ef\u4ee5\u5c06<span>iPhone<\/span>\u3001<span>iPod touch<\/span>\u3001<span>iPad<\/span>\u53ca<span>Mac<\/span>\uff08\u9700\u8981<span>OS X Mountain Lion<\/span>\u6216\u66f4\u65b0\u7248\uff09\u4e0a\u7684\u89c6\u9891\u955c\u50cf\u4f20\u9001\u5230\u652f\u6301<span>Airplay<\/span>\u7684\u8bbe\u5907\uff08\u5982\uff1a\u97f3\u7bb1\u3001<span>Apple TV<\/span>\uff09\u4e2d\u64ad\u653e\u3002\u4f7f\u7528<span>Airplay<\/span>\u9700\u8981<span>iOS4.2<\/span>\u7248\u672c\u7684\u8bbe\u5907\u6216<span>Mac<\/span>\u7535\u8111\u4e0a\u7684<span>iTunes10.1<\/span>\u4ee5\u4e0a\u7248\u672c\u3002\u89c6\u9891\u955c\u50cf\u5219\u9700\u8981<span>iOS 5<\/span>\u53ca<span>OS X Mountain Lion<\/span>\u3002<\/p>\n<p>\u5f53\u7528\u6237\u7684\u8bbe\u5907\uff08<span>Mac, PC, iPod touch, iPhone, iPad<\/span>\uff09\u4e0e\u652f\u6301<span>AirPlay<\/span>\u6280\u672f\u7684\u97f3\u7bb1\u5728\u540c\u4e00\u65e0\u7ebf\u5c40\u57df\u7f51\uff08<span>WIFI<\/span>\uff09\u5185\u7684\u65f6\u5019\uff0c\u7528\u6237\u5728<span>Mac<\/span>\u6216<span>PC<\/span>\u4e0a\u6253\u5f00<span>iTunes 10<\/span>\u6216\u66f4\u9ad8\u7248\u672c\u540e\uff0c\u5c31\u4f1a\u5728<span>iTunes<\/span>\u97f3\u91cf\u6761\u65c1\u8fb9\uff08<span>iTunes 10<\/span>\u5728\u7a97\u53e3\u7684\u53f3\u4e0b\u89d2\uff09\u770b\u5230\u4e00\u4e2a<span>AirPlay<\/span>\u6309\u94ae\u3002\u70b9\u51fb\u8be5<span>AirPlay<\/span>\u6309\u94ae\uff0c\u7136\u540e\u9009\u62e9\u9700\u8981\u540c\u6b65\u5230\u7684\u8bbe\u5907\uff0c\u5c31\u53ef\u4ee5\u9009\u62e9\u5c06\u97f3\u4e50\u6216\u89c6\u9891\u65e0\u7ebf\u540c\u6b65\u5230\u8bbe\u5907\u8fdb\u884c\u64ad\u653e\u3002\u800c<span>iPod touch, iPhone<\/span>\u548c<span>iPad<\/span>\u7528\u6237\u5219\u53ef\u4ee5\u5728\u76f8\u5e94\u7684\u201c\u97f3\u4e50\u201d\uff0c\u201c\u89c6\u9891\u201d\u4ee5\u53ca\u652f\u6301<span>AirPlay<\/span>\u529f\u80fd\u7684\u7b2c\u4e09\u65b9\u8f6f\u4ef6\u754c\u9762\u627e\u5230<span>AirPlay<\/span>\u6309\u94ae\uff0c\u64cd\u4f5c\u540c<span>Mac<\/span>\u548c<span>PC<\/span>\u3002<\/p>\n<p>\u7531\u4e8e<span>AirPlay<\/span>\u5e76\u975e\u662f\u5f00\u6e90\u7684\u800c\u4e14\u9700\u8981\u9006\u5411\u83b7\u5f97<span>AirPlay key<\/span>\uff0c\u6240\u4ee5\u8981\u5b9e\u73b0<span>AirPlay<\/span>\u7684\u96be\u5ea6\u4e0d\u5c0f\uff0c\u7f51\u4e0a\u6d41\u4f20\u7684<span>AirPlay<\/span>\u534f\u8bae\u90fd\u662f\u975e\u5b98\u65b9\u7684\uff0c<span>WirelessDisplay<\/span>\u7fa4\u91cc\u6709\u4e0b\u8f7d\u597d\u7684\u534f\u8bae\uff0c\u6bcf\u6b21<span> IOS<\/span>\u7684\u5347\u7ea7\u90fd\u4f1a\u5bf9<span>AirPlay<\/span>\u534f\u8bae\u8fdb\u884c\u4e00\u5b9a\u7684\u4fee\u6539\uff0c\u7ed9\u521a\u63a5\u89e6\u60f3\u5b66\u4e60<span>AirPlay<\/span>\u7684\u670b\u53cb\u63a8\u8350\u51e0\u4e2a\u7b80\u5355\u7684<span>AirPlay<\/span>\u5b9e\u73b0<\/p>\n<p>\u7b2c\u4e00\u4e2a\u6d41\u4f20\u51fa\u6765\u7684<span>AirPlay<\/span>\u662f\u7531<span>James Laird<\/span>\u5927\u795e\u53d1\u5e03\u7684\uff0c\u539f\u56e0\u5c31\u662f\u4ed6\u7684\u5973\u670b\u53cb\u60f3\u5c06\u81ea\u5df1\u7684<span>ipod<\/span>\u65e0\u7ebf\u6295\u5230\u97f3\u54cd\u4e0a\u64ad\u653e\uff0c\u5f53\u65f6\u53ea\u6709\u82f9\u679c\u5b98\u65b9\u7684\u76d2\u5b50\u624d\u80fd\u591f\u652f\u6301\uff0c<span>James Laird<\/span>\u4e00\u6012\u4e4b\u4e0b\u7834\u89e3\u4e86\u5f53\u65f6\u7684<span>AirPlay<\/span>\u534f\u8bae\uff0c\u5e76\u4e14\u516c\u5f00\u4e86<span>Private Apple AirPlay key<\/span>\u3002<\/p>\n<p>https:\/\/github.com\/abrasive\/shairport<\/p>\n<p>\u8fd9\u4e2a<span>daemon<\/span>\u91c7\u7528<span>c<\/span>\u8bed\u8a00\u7f16\u5199\uff0c\u53ef\u4ee5\u8fdb\u884c<span>ios7<\/span>\u53ca\u4ee5\u4e0b\u8bbe\u5907\u7684\u97f3\u9891\u6295\u5c04\uff0c\u5728\u516c\u53f8\u7528<span>ipod<\/span>\u5b9e\u6d4b\u53ef\u7528\u3002<\/p>\n<p>https:\/\/github.com\/gpfduoduo\/AirPlay-Receiver-on-Android<\/p>\n<p>\u6211\u5929\u671d\u4eba\u53d1\u5e03\u7684\u5f00\u6e90\u9879\u76ee\uff0c\u652f\u6301<span>IOS8.4<\/span>\u4e4b\u524d\u7684\u97f3\u89c6\u9891\u6295\u5c4f\u4ee5\u53ca\u56fe\u7247\u63a8\u9001\uff0c\u7ecf\u8fc7\u5b9e\u6d4b\u53ef\u7528\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>AirPlay\u7248\u672c\u7e41\u591a\uff0c\u534f\u8bae\u4e5f\u6bd4\u8f83\u591a\uff1a\u955c\u50cf\uff0c\u975e\u955c\u50cf\uff0c\u56fe\u7247\uff0c\u89c6\u9891\uff0c\u97f3\u9891\uff0c\u7b2c\u4e09\u65b9<span>app<\/span>\u7b49\u7b49\u5404\u79cd\u534f\u8bae\u4e4b\u95f4\u90fd\u6709\u5dee\u522b\uff0c\u4ee5\u540e\u4f1a\u6162\u6162\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u7684\u3002<\/p>\n<p>\u8981\u5b9e\u73b0<span>AirPlay<\/span>\u7684\u7b2c\u4e00\u6b65\u5c31\u662f\u8981\u5b9e\u73b0<span>ios<\/span>\u4e0e<span>AirPlay<\/span>\u4e4b\u95f4\u7684\u76f8\u4e92\u53d1\u73b0\uff0c\u53ef\u4ee5\u4f7f\u7528<span>zeroconf<\/span>\uff0c<span>mdns<\/span>\u7b49\u5f00\u6e90\u534f\u8bae\u6765\u5b9e\u73b0\uff0c\u4e0b\u4e00\u7ae0\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\u4ecb\u7ecd\u8fd9\u51e0\u79cd\u53d1\u73b0\u534f\u8bae\u3002<\/p>\n<p>\u8981\u5b9e\u73b0<span>airPlay<\/span>\u7684\u955c\u50cf<span>Server<\/span>\u7aef\u529f\u80fd\uff0c\u8981\u4ece\u4ee5\u4e0b\u51e0\u4e2a\u65b9\u9762\u6765\u8003\u8651<\/p>\n<ul>\n<li>1.\u53d1\u73b0\u8fc7\u7a0b<\/li>\n<li>2.\u534f\u5546\u8fc7\u7a0b<\/li>\n<li>3.\u89c6\u9891\u4f20\u8f93<\/li>\n<li>4.\u89e3\u5bc6\u8fc7\u7a0b<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>\u53d1\u73b0\u8fc7\u7a0b<\/strong><\/p>\n<p>\u4f7f\u7528<span>Bonjour<\/span>\uff0c\u53ef\u4ee5\u53c2\u8003<span>mDNSResponder<\/span>\uff0c<span>jmdns<\/span>\uff0c\u6ce8\u518c\u4e24\u4e2a\u670d\u52a1<span>:airtunes<\/span>\u548c<span>airplay<\/span>\uff0c<span>AirplayTxt<\/span>\u4ee5\u53ca<span>RaopTxt<\/span>\u7167\u7740<span>demo<\/span>\u586b\u5199\u5c31\u53ef\u4ee5\u4e86\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u81ea\u5df1\u7684\u8981\u6c42\u4fee\u6539\u5176\u4e2d\u7684\u503c\uff0c<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u5982\u4e0b\uff1a<\/p>\n<p>airtunes:\u00a0\u00a0 \u201c12345@wirelessdisplay\u201d , \u201d_raop._tcp.\u201dairplay:\u00a0\u00a0\u00a0 \u201cwirelessdisplay\u201d , \u201d_airplay._tcp.\u201d<\/p>\n<p>\u53c2\u6570\u4e2d\u201d<span>_airplay._tcp.<\/span>\u201d\u548c\u2019\u2019<span>_raop._tcp.<\/span>\u201d\u4e0d\u53ef\u4fee\u6539\u3002<\/p>\n<p>\u53d1\u5e03\u4e86\u670d\u52a1\u4e4b\u540e\uff0c<span>ios<\/span>\u8bbe\u5907\u4e2d\u5e94\u8be5\u5c31\u53ef\u4ee5\u641c\u7d22\u5230<span>Server<\/span>\u7aef\u4e86<\/p>\n<p><strong>\u534f\u5546\u8fc7\u7a0b<\/strong><\/p>\n<p>c-s: pair-setup<\/p>\n<p>s-c: xxx<\/p>\n<p>c-s: pair-verify<\/p>\n<p>s-c: xxx<\/p>\n<p>c-s: fp-setup<\/p>\n<p>s-c: xxx<\/p>\n<p>c-s: fp-setup<\/p>\n<p>s-c: xxx<\/p>\n<p>setup<\/p>\n<p>setup response<\/p>\n<p>setup<\/p>\n<p>setup respnose<\/p>\n<p>pair-setup\uff0c<span>pair-verify<\/span>\u914d\u5bf9\u9a8c\u8bc1\uff0c<span>Server<\/span>\u7aef\u6839\u636e\u6536\u5230\u7684\u4fe1\u606f\u8fdb\u884c\u56de\u590d\uff0c\u683c\u5f0f\u7c7b\u4f3c<span>RTSP<\/span><\/p>\n<p>fp-setup(\u7b2c\u4e00\u6b21\u548c\u7b2c\u4e8c\u6b21<span>)<\/span>\uff0c<span>Fairplay<\/span>\u76f8\u5173\u3002<\/p>\n<p>\u7b2c\u4e00\u6b21<span>setup<\/span>\u9636\u6bb5\u4f1a\u6536\u5230\u4e00\u5927\u4e32\u6570\u636e\uff0c\u662f\u6309\u7167<span>plist<\/span>\u683c\u5f0f\u751f\u6210\u7684\uff0c\u7528\u76f8\u5e94\u7684\u65b9\u6cd5\u8fdb\u884c\u89e3\u6790\u53ef\u4ee5\u5f97\u5230<span>ekey<\/span>\u548c<span>eiv<\/span>\u7b49\u4fe1\u606f\uff0c\u7528\u4e8e\u540e\u7eed\u7684\u89e3\u5bc6\u3002<\/p>\n<p>\u7b2c\u4e8c\u6b21<span>setup<\/span>\u9636\u6bb5\u83b7\u5f97<span>type<\/span>\uff0c\u901a\u8fc7<span>type<\/span>\u6765\u5224\u65ad\u89c6\u9891\u6570\u636e\u6216\u97f3\u9891\u6570\u636e\uff0c\u901a\u77e5\u63a5\u6536\u7aef\u5efa\u7acb\u4f20\u8f93\u901a\u9053\u51c6\u5907\u8fdb\u884c\u97f3\u89c6\u9891\u6570\u636e\u7684\u53d1\u9001\uff0c\u52a0\u5bc6\u8fc7\u7684\u5c4f\u5e55\u955c\u50cf\u6570\u636e\u901a\u8fc7\u6307\u5b9a\u7684\u7aef\u53e3<span>(<\/span>\u4e00\u822c\u4e3a<span>7100)<\/span>\u53d1\u9001\u5230\u63a5\u6536\u7aef\u3002<\/p>\n<p>\u63a5\u6536\u7aef\u6536\u5230\u53d1\u9001\u8fc7\u6765\u7684\u6570\u636e\u540e\u8fdb\u884c\u89e3\u5bc6\uff0c\u89e3\u5bc6\u540e\u7684\u6570\u636e\u5c31\u53ef\u4ee5\u8fdb\u884c\u64ad\u653e\u4e86\u3002<\/p>\n<p>\u4e2d\u95f4\u4e5f\u53ef\u80fd\u4f1a\u6709<span>GET_PARAMETER<\/span>\uff0c<span>SET_PARAMETER<\/span>\u6765\u8c03\u6574\u97f3\u91cf\u7b49\u4fe1\u606f\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u89e3\u5bc6\u90e8\u5206\u76ee\u524d\u4e3b\u8981\u6709\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n<p>1.\u4ece<span>apptv<\/span>\u6216<span>macOS<\/span>\u83b7\u53d6\u3002<\/p>\n<p>2.\u4ece\u5e02\u9762\u4e0a\u5df2\u6709\u7684\u53ef\u6295\u5c4f\u4ea7\u54c1\u4e2d\u83b7\u53d6\u3002<\/p>\n<p>AIRPLAY\u955c\u50cf\u6295\u5c4f\u8fc7\u7a0b\u4e2d\uff0c\u97f3\u89c6\u9891\u6570\u636e\u90fd\u662f\u52a0\u5bc6\u8fc7\u7684\uff0c\u5bf9\u4e8e\u63a5\u6536\u7aef\u6765\u8bf4\uff0c\u9700\u8981\u6b63\u786e\u89e3\u5bc6\u540e\u624d\u80fd\u5bf9\u97f3\u89c6\u9891\u6570\u636e\u8fdb\u884c\u5904\u7406\uff0c\u97f3\u9891\u548c\u89c6\u9891\u7684\u89e3\u5bc6\u8fc7\u7a0b\u8fd8\u4e0d\u4e00\u6837\u3002\u97f3\u9891\u76f8\u5bf9\u7b80\u5355\u4e00\u70b9\uff0c\u89c6\u9891\u4f1a\u590d\u6742\u4e00\u4e9b\u3002\u8fd9\u4e00\u5757\u7684\u89e3\u5bc6\u8fc7\u7a0b\u662f\u6ca1\u6709\u516c\u5f00\u7684\uff0c\u662f\u82f9\u679c\u81ea\u8eab\u7684<span>Fairplay DRM<\/span>\u534f\u8bae\u90e8\u5206\u3002\u73b0\u5728\u5e02\u9762\u4e0a\u7684\u7b2c\u4e09\u65b9<span>Airplay<\/span>\u63a5\u6536\u7aef\u65e0\u975e\u90fd\u662f\u901a\u8fc7\u9006\u5411\u8fc7\u7a0b\u7834\u89e3\u4e86\u76f8\u5173\u90e8\u5206\u3002<\/p>\n<p>\u672c\u6587\u9488\u5bf9\u97f3\u9891\u7684\u5904\u7406\u505a\u4e00\u4e2a\u4ecb\u7ecd\uff0c\u97f3\u9891\u90e8\u5206\u7684\u5904\u7406\u76f8\u5bf9\u7b80\u5355\u4e00\u70b9\u3002<\/p>\n<p><strong>\u89e3\u5bc6\u8fc7\u7a0b<\/strong><span>:<\/span><\/p>\n<p>1 \u97f3\u9891\u91c7\u7528<span>AES CBC128<\/span>\u8fdb\u884c\u52a0\u5bc6\uff0c\u8fd9\u4e00\u90e8\u5206\u53ef\u4ee5\u4f7f\u7528\u5f00\u6e90\u7684<span>openssl<\/span>\u5e93\u8fdb\u884c\u5904\u7406<\/p>\n<p>2 \u8be5\u7b97\u6cd5\u9700\u8981\u89e3\u5bc6\u7684\u8f93\u5165\u53c2\u6570\u5305\u62ec<span>aeskey<\/span>\uff0c<span>aeskiv<\/span>\uff0c\u901a\u8fc7ANNOUNCE\u8bf7\u6c42\u4e2d\u643a\u5e26\uff0c<span>ANNOUNCE<\/span>\u8bf7\u6c42\u540c\u65f6\u8fd8\u4f1a\u643a\u5e26\u97f3\u9891\u7684\u7f16\u7801\u4fe1\u606f\u3002<\/p>\n<p>\u901a\u8fc7\u89e3\u5bc6\u8fc7\u7a0b\u540e\uff0c\u6211\u4eec\u4f1a\u5f97\u5230<span>AAC<\/span>\u7f16\u7801\u7684\u97f3\u9891\u6570\u636e\uff0c\u64ad\u653e\u5668\u64ad\u653e<span>AAC<\/span>\u6570\u636e\u8fd8\u9700\u8981\u5bf9\u5176\u8fdb\u884c\u89e3\u7801\u3002<\/p>\n<p>\u5728\u6211\u4eec\u5b9e\u73b0\u7684\u63a5\u6536\u7aef\u7a0b\u5e8f\uff0c\u534f\u5546\u51fa\u6765\u7684\u662f<span>AAC-ELD<\/span>\u7f16\u7801\u3002\u5bf9\u4e8e<span>AAC<\/span>\u7684\u89e3\u7801\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e00\u4e9b\u5f00\u6e90\u7684\u5e93\uff0c\u5982<span>fdk,ffmpeg<\/span>\u7b49\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528<span>android<\/span>\u63d0\u4f9b\u7684<span>MediaCodec<\/span>\u8fdb\u884c\u89e3\u7801\u3002<\/p>\n<p>\u4f46\u7b14\u8005\u66fe\u7ecf\u5728\u67d0\u4e9b<span>Android<\/span>\u624b\u673a\u4e0a\u53d1\u73b0\uff0c\u89e3\u7801<span>AAC-ELD<\/span>\u6709\u95ee\u9898\u3002\u63a8\u8350\u5927\u5bb6\u7528<span>fdk<\/span>\u8fdb\u884c\u89e3\u7801\u3002<\/p>\n<p>\u4f7f\u7528<span>fdk<\/span>\u5bf9<span>aac<\/span>\u8fdb\u884c\u89e3\u7801\uff0c\u5176\u5b9e\u5728\u7f51\u4e0a\u4e5f\u80fd\u627e\u5230\u5f88\u591a\u4f8b\u5b50\uff0c\u4f46\u7b14\u8005\u53d1\u73b0\u5f88\u591a\u4f8b\u5b50\u6709\u4e00\u5904\u9519\u8bef\uff0c\u5728\u4f4e\u7248\u672c\u7684<span>fdk<\/span>\u4e0a\u4e0d\u4f1a\u51fa\u73b0\u9519\u8bef\uff0c\u4f46\u662f\u5728\u9ad8\u7248\u672c\u7684<span>fdk<\/span>\u4f1a\u51fa\u73b0<span>crash<\/span>\u8fd9\u6837\u7684\u95ee\u9898\u3002\u8bdd\u4e0d\u591a\u8bf4\uff0c\u76f4\u63a5\u901a\u8fc7\u90e8\u5206\u4ee3\u7801\u6765\u8bf4\u660e\u8fc7\u7a0b\u3002<\/p>\n<p>\u521d\u59cb\u5316\u89e3\u7801\u5668\uff1a<\/p>\n<ol>\n<li><span><strong> UCHAR<\/strong><\/span>eld_conf[]\u00a0=\u00a0{\u00a00xF8,\u00a00xE8,\u00a00x50,\u00a00x00\u00a0};\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<span>\/\/44100,2channels,s16<\/span><\/li>\n<li><span><strong>UCHAR<\/strong>*aac_eld_conf[]\u00a0=\u00a0{\u00a0eld_conf\u00a0};\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><span>\/\/TODO\u00a0just\u00a0for\u00a0aac\u00a0eld\u00a0config<\/span><\/li>\n<li><span><strong>static<\/strong><\/span><span><strong>UINT<\/strong><\/span>\u00a0aac_eld_conf_len\u00a0=\u00a0<span><strong>sizeof<\/strong><\/span>(eld_conf);<\/li>\n<li>decoder\u00a0=\u00a0aacDecoder_Open(TT_MP4_RAW,\u00a01);<\/li>\n<li>AAC_DECODER_ERROR\u00a0ret\u00a0=\u00a0aacDecoder_ConfigRaw(decoder,\u00a0aac_eld_conf,\u00a0&amp;aac_eld_conf_len);<\/li>\n<li>buffer\u00a0=\u00a0<span><strong>new<\/strong><\/span>INT_PCM[960];<\/li>\n<li>buffer_size\u00a0=\u00a01920;<\/li>\n<li>pcm_size\u00a0=\u00a0960;<\/li>\n<\/ol>\n<p>\u4e0a\u8ff0\u4ee3\u7801\u4e2d<span>eld_conf<\/span>\u8fd9\u4e00\u5757\u7684\u503c\u5bf9\u5e94<span>android MediaCodec aac<\/span>\uff0c<span>CSD buffer #0<\/span>\u5177\u4f53\u4ec0\u4e48\u542b\u4e49\u770b\u89c4\u8303\u5427\u3002<\/p>\n<p>\u6bcf\u6b21\u7f16\u7801\u548c\u53d1\u9001\u7684\u91c7\u7528\u6570\u4e3a<span>480<\/span>\uff0c\u6545\u4e0b\u9762\u7533\u8bf7\u5bf9\u5e94\u957f\u5ea6\u7684<span>Buffer<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><strong>\u89e3\u7801\u8fc7\u7a0b<\/strong><span>:<\/span><\/p>\n<ol>\n<li><span data-mod=\"popu_169\"><\/span><\/li>\n<li>bytesValid\u00a0=\u00a0dataLen;<\/li>\n<li><span><strong>while<\/strong>(bytesValid){\u00a0\u00a0<\/span><\/li>\n<li>ret\u00a0=\u00a0aacDecoder_Fill(decoder,\u00a0<span><strong>reinterpret_cast<\/strong><\/span>&lt;<span><strong>UCHAR<\/strong><\/span>**&gt;(&amp;p_frame),\u00a0(<span><strong>UINT<\/strong><\/span>*)&amp;size,\u00a0&amp;bytesValid);<\/li>\n<li><span><strong>if<\/strong><\/span>\u00a0(ret\u00a0!=\u00a0AAC_DEC_OK)\u00a0{<\/li>\n<li>printf(<span>&#8220;aacDecoder_Fill\u00a0return\u00a0%x.\\r\\n&#8221;<\/span>,\u00a0ret);<\/li>\n<li><span><strong>return<\/strong><\/span>;<\/li>\n<li>}<\/li>\n<li><\/li>\n<li><span><strong>for<\/strong><\/span>(;;)\u00a0{<\/li>\n<li>ret\u00a0=\u00a0aacDecoder_DecodeFrame(decoder,\u00a0buffer,\u00a0pcm_size,\u00a00);<\/li>\n<li><span><strong>if<\/strong><\/span>(ret\u00a0==\u00a0AAC_DEC_OK)\u00a0{<\/li>\n<li>dump_audio_data((unsigned\u00a0<span><strong>char<\/strong><\/span>*)buffer,buffer_size);<\/li>\n<li><\/li>\n<li>}\u00a0<span><strong>else<\/strong><\/span><span><strong>if<\/strong><\/span>\u00a0(ret\u00a0==\u00a0AAC_DEC_NOT_ENOUGH_BITS)<\/li>\n<li><span><strong>break<\/strong><\/span>;<\/li>\n<li><span><strong>else<\/strong><\/span>{<\/li>\n<li>printf(<span>&#8220;aacDecoder_DecodeFrame\u00a0return\u00a0%x.\\r\\n&#8221;<\/span>,\u00a0ret);<\/li>\n<li><span><strong>return<\/strong><\/span>;<\/li>\n<li>}<\/li>\n<li>}<\/li>\n<li>}<\/li>\n<\/ol>\n<p>aacDecoder_DecodeFrame\u586b\u5165\u7684\u53c2\u6570\u4e3a<span>pcm_size<\/span>\uff0c\u5176\u5355\u4f4d\u4e3a<span>short,<\/span>\u800c\u4e0d\u662f<span>byte<\/span>\u3002\u7f51\u4e0a\u7684\u4f8b\u5b50\u5f88\u591a\u90fd\u662f\u5728\u8fd9\u91cc\u9519\u8bef\u3002\u8bf7\u5404\u4f4d\u52a1\u5fc5\u6ce8\u610f\u3002<\/p>\n<p><span>\u5fc5\u6377\u7f51\u7edc\u73b0\u63d0\u4f9b\u6280\u672f\u5168\u56fd\u9886\u5148\u7684<a href=\"\/\/www.bijienetworks.com\/solutions\/wirelessdisplaysdk\/\"><strong>Airpaly SDK<\/strong><\/a>\u82f9\u679c\u65e0\u7ebf\u6295\u5c4f\u8f6f\u4ef6\u5f00\u53d1\u5de5\u5177\u5305\uff0c<\/span><span>\u652f\u6301\u540c\u65f6\u591a\u8def\uff0c<\/span><span>\u652f\u6301\u955c\u50cf\/\u89c6\u9891\/\u56fe\u7247\/\u97f3\u4e50\uff0c<\/span><span>\u652f\u6301MAC OS\/iOS6\/iOS7\/iOS8\/iOS9\/iOS10\/iOS11\u6295\u5c4f\uff0c<\/span><span>\u652f\u6301Linux\/Android\/Windows\/X86\/ARM\/MIPS\u7b49\uff0c<\/span><span>\u53ef\u6839\u636e\u9700\u6c42\u5b9a\u5236\u5f00\u53d1\uff0c<\/span><span>\u901a\u8fc7\u7535\u8bdd\u6216\u8005\u5728\u7ebf\u54a8\u8be2\u8054\u7cfb\u6211\u4eec\u83b7\u53d6\u66f4\u591a\u65e0\u7ebf\u6295\u5c4fsdk\uff08<strong>airplay sdk<\/strong>\u3001miracast sdk\uff09\u76f8\u5173\u4fe1\u606f\uff0c\u6b22\u8fce\u54a8\u8be2\uff01<\/span><\/p>\n<p><span>\u00a0<\/span><\/p>\n<p><span>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 <\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>AirPlay\u662f\u82f9\u679c\u516c\u53f8\u7684\u5728iOS4.2\u53caOS X Mountain Lion\u4e2d\u52a0\u5165\u7684\u4e00\u79cd\u64ad\u653e\u6280\u672f\uff0c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[26,24],"tags":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts\/1001"}],"collection":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/comments?post=1001"}],"version-history":[{"count":0,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/posts\/1001\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/media?parent=1001"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/categories?post=1001"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bijienetworks.com\/wp-json\/wp\/v2\/tags?post=1001"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}