avcodec/mediacodec_wrapper: add helper to fetch SDK_INT

Signed-off-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit fe0a6bcb)

libavcodec/mediacodec_wrapper.c

@@ -1687,3 +1687,18 @@ int ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec *codec)
 fail:
     return ret;
 }
+
+int ff_Build_SDK_INT(AVCodecContext *avctx)
+{
+    int ret = -1;
+    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);
+    return ret;
+}

libavcodec/mediacodec_wrapper.h

@@ -124,4 +124,6 @@ int ff_AMediaCodec_getConfigureFlagEncode(FFAMediaCodec *codec);
 
 int ff_AMediaCodec_cleanOutputBuffers(FFAMediaCodec *codec);
 
+int ff_Build_SDK_INT(AVCodecContext *avctx);
+
 #endif /* AVCODEC_MEDIACODEC_WRAPPER_H */