android_get_device_api_level

 

///Users/yzfhkms-m/pripro/D/library/ffmpeg/ffmpeg-6.1.1/libavcodec/mediacodec_wrapper.c

 

{

//ret = android_get_device_api_level();

//ndk 编译的api层级

ret = 28;/21

}

 

{

int ff_Build_SDK_INT(AVCodecContext *avctx)

{

int ret = -1;

#if __ANDROID_API__ >= 24

// android_get_device_api_level() is a static inline before API level 29.

// dlsym() might doesn't work.

//

// We can implement android_get_device_api_level() by

// __system_property_get(), but __system_property_get() has created a lot of

// troubles and is deprecated. So avoid using __system_property_get() for

// now.

//

// Hopy we can remove the conditional compilation finally by bumping the

// required API level.

//

//ret = android_get_device_api_level();

ret = 28;

#else

JNIEnv *env = NULL;

jclass versionClass;

jfieldID sdkIntFieldID;

JNI_GET_ENV_OR_RETURN(env, avctx, -1);

versionClass = (*env)->FindClass(env, "android/os/Build$VERSION");

sdkIntFieldID = (*env)->GetStaticFieldID(env, versionClass, "SDK_INT", "I");

ret = (*env)->GetStaticIntField(env, versionClass, sdkIntFieldID);

(*env)->DeleteLocalRef(env, versionClass);

#endif

av_log(avctx, AV_LOG_DEBUG, "device api level %d\n", ret);

return ret;

}

}