Int32 CDrmRawContent::NativeReadContent(
/* [in] */ ArrayOf<Byte>* buf,
/* [in] */ Int32 bufOff,
/* [in] */ Int32 len,
/* [in] */ Int32 mediaOff)
{
DrmData* p;
if (NULL == buf) {
return CDrmRawContent::JNI_DRM_FAILURE;
}
if (len < 0 || bufOff < 0 || len + bufOff > buf->GetLength()) {
return CDrmRawContent::JNI_DRM_FAILURE;
}
if (mediaOff < 0 || len == 0)
return CDrmRawContent::JNI_DRM_FAILURE;
p = GetItem(mId);
if (NULL == p)
return CDrmRawContent::JNI_DRM_FAILURE;
p->pInData = mInData;
len = SVC_drm_getContent(mId, mediaOff, (uint8_t *)buf->GetPayload() + bufOff, len);
if (DRM_MEDIA_EOF == len){
return CDrmRawContent::JNI_DRM_EOF;
}
if (len <= 0){
return CDrmRawContent::JNI_DRM_FAILURE;
}
return len;
}
/* native interface */
JNIEXPORT jint JNICALL
Java_android_drm_mobile1_DrmRawContent_nativeReadContent
(JNIEnv * env, jobject rawContent, jbyteArray buf, jint bufOff, jint len, jint mediaOff)
{
jint id;
jbyte *nativeBuf;
jclass cls;
jmethodID mid;
DrmData* p;
jobject inputStream;
jfieldID field;
if (NULL == buf) {
jclass newExcCls = (*env)->FindClass(env, "java/lang/NullPointerException");
if (newExcCls == NULL)
/* Unable to find the exception class, give up. */
return JNI_DRM_FAILURE;
(*env)->ThrowNew(env, newExcCls, "b is null");
}
if (len < 0 || bufOff < 0 || len + bufOff > (*env)->GetArrayLength(env, buf)) {
jclass newExcCls = (*env)->FindClass(env, "java/lang/IndexOutOfBoundsException");
if (newExcCls == NULL)
/* Unable to find the exception class, give up. */
return JNI_DRM_FAILURE;
(*env)->ThrowNew(env, newExcCls, NULL);
}
if (mediaOff < 0 || len == 0)
return JNI_DRM_FAILURE;
if (JNI_DRM_FAILURE == getObjectIntField(env, rawContent, "id", &id))
return JNI_DRM_FAILURE;
p = getItem(id);
if (NULL == p)
return JNI_DRM_FAILURE;
cls = (*env)->GetObjectClass(env, rawContent);
if (NULL == cls)
return JNI_DRM_FAILURE;
field = (*env)->GetFieldID(env, cls, "inData", "Ljava/io/BufferedInputStream;");
(*env)->DeleteLocalRef(env, cls);
if (NULL == field)
return JNI_DRM_FAILURE;
inputStream = (*env)->GetObjectField(env, rawContent, field);
p->env = env;
p->pInData = &inputStream;
nativeBuf = (*env)->GetByteArrayElements(env, buf, NULL);
len = SVC_drm_getContent(id, mediaOff, (uint8_t *)nativeBuf + bufOff, len);
(*env)->ReleaseByteArrayElements(env, buf, nativeBuf, 0);
if (DRM_MEDIA_EOF == len)
return JNI_DRM_EOF;
if (len <= 0)
return JNI_DRM_FAILURE;
return len;
}
