OpenSL ES 查询设备支持的SL Profiles

opensl es 提供了三种类型：分别是 SL_PROFILES_PHONE(手机)；SL_PROFILES_MUSIC(音乐); SL_PROFILES_GAME (游戏)。

如果你使用的手机的开发商使用了OpenSL ES 的话，会有一个类似于上面的sl配置。如果是手机的话，一般会是SL_PROFILES_PHONE 在android较低的版本下也就意味着某些Opensl es 的功能不可用。

下面是查询代码：

 1 　　SLObjectItf    _engineObject;
 2     SLresult    result;
 3     result = slCreateEngine(&_engineObject, 0, NULL, 0, NULL, NULL);
 4     assert(SL_RESULT_SUCCESS == result);
 5 
 6     result = (*_engineObject)->Realize(_engineObject, SL_BOOLEAN_FALSE);
 7     assert(SL_RESULT_SUCCESS == result);
 8 
 9     SLEngineCapabilitiesItf capabilities;
10     SLuint16 profilesSupported;        
11     result = (*_engineObject)->GetInterface(_engineObject, SL_IID_ENGINECAPABILITIES, &capabilities);
12     assert(SL_RESULT_SUCCESS == result);
13     result = (*capabilities)->QuerySupportedProfiles (capabilities, &profilesSupported);
14     assert(SL_RESULT_SUCCESS == result);
15     
16     if (profilesSupported & SL_PROFILES_PHONE)
17     {
18         //手机
19          LOGI("SL_PROFILES_PHONE");
20     }        
21     if (profilesSupported & SL_PROFILES_MUSIC)
22     {
23         //音乐
24          LOGI("SL_PROFILES_MUSIC");
25     }
26     if (profilesSupported & SL_PROFILES_GAME)
27     {
28         //游戏
29          LOGI("SL_PROFILES_GAME");
30      }

备注：可能有些设备获取不了引擎功能接口 SLEngineCapabilitiesItf;

posted on 2013-08-19 16:24 瓦楞球阅读(820) 评论(0) 编辑收藏举报