QCC 广播BroadcastAudio

QCC 广播BroadcastAudio

1. BroadcastAudio是可帮助消费者以无线方式、从单个终端向多个耳机或音箱近乎完美地同步流传输音乐的方式。

2. BroadcastAudio项目用到的mode有normal，broadcaster，receiver。
   /*!
   @brief sink_ba_app_mode_t

   This type defines Broadcast Audio Application Mode.
   sink_ba_appmode_normal is the mode where broadcat audio is not available
   sink_ba_appmode_broadcaster is the mode where BA Broadcaster is Active
   sink_ba_appmode_receiver is the mode where BA Receiver is Active
   /
   typedef enum _sink_ba_app_mode_t
   {
   sink_ba_appmode_normal, /! BA app mode is normal, No Broadcast Audio available /
   sink_ba_appmode_broadcaster, /! BA app mode is BA Broadcaster /
   sink_ba_appmode_receiver /! BA app mode is BA Receiver */
   }sink_ba_app_mode_t;

QualcommBroadcastAudio特性包括：
·更简单的终端设置和配对及终端管理，可帮助用户更轻松地管理哪些终端可以加入
·在蓝牙覆盖范围内，向多个终端进行广播
·内置稳健性、自动重新传输和丢包弥补
·加密音频传输可帮助降低窃听风险

BroadcastAudio需要一个充当broadcaster，即处于broadcaster 模式，至少有一个（否则失去了BroadcastAudio意义）处于receiver模式。

处于receiver的耳机或者音箱需要跟处于broadcaster的耳机或者音箱进行绑定。绑定后处于receiver的设备才可以收听处于broadcaster的设备的音频。

QCC302X/QCC303X等均支持QualcommBroadcastAudio。