rk平台android12修改dp和喇叭同时输出声音

hi安同学2023-10-20 21:19

客户的rk3588主板android12系统，要求接上type-c 进行dp输出显示以后，dp端和主板端都有声音。rk原有系统默认是接上dp显示以后，主板的喇叭声音会被切掉，导致没有声音。要让喇叭和dp同时输出声音需要做如下修改：

复制代码

--- a/frameworks/av/services/audiopolicy/enginedefault/src/Engine.cpp
+++ b/frameworks/av/services/audiopolicy/enginedefault/src/Engine.cpp
@@ -366,6 +366,8 @@ DeviceVector Engine::getDevicesForStrategyInt(legacy_strategy strategy,
         }
         if ((devices2.isEmpty()) && (strategy != STRATEGY_SONIFICATION)) {
             devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPDIF);
+			DeviceVector devices_add = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPEAKER);
+			devices2.add(devices_add);
         }
         if ((devices2.isEmpty()) && (strategy != STRATEGY_SONIFICATION)) {
             devices2 = availableOutputDevices.getDevicesFromType(AUDIO_DEVICE_OUT_SPDIF_1);