From a6f1104b9d829c636b60b9387e379f9667b5df09 Mon Sep 17 00:00:00 2001
From: Gloria Wang <gwang@google.com>
Date: Fri, 20 May 2011 10:15:21 -0700
Subject: [PATCH] Use pread() to get the decrypted data for container based DRM
 file. For bug 4392094.

Change-Id: Icc64a26c5b413313cc35dcd02d60484dc8245dfb
---
 media/libstagefright/NuHTTPDataSource.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/media/libstagefright/NuHTTPDataSource.cpp b/media/libstagefright/NuHTTPDataSource.cpp
index 62fb732569874..dd29c8485d7e7 100644
--- a/media/libstagefright/NuHTTPDataSource.cpp
+++ b/media/libstagefright/NuHTTPDataSource.cpp
@@ -383,6 +383,13 @@ ssize_t NuHTTPDataSource::readAt(off64_t offset, void *data, size_t size) {
 
     Mutex::Autolock autoLock(mLock);
 
+    // if it's a DRM container based streaming, call pread() of the DRM plugin
+    // to get the decrypted data
+    if (mDecryptHandle != NULL && DecryptApiType::CONTAINER_BASED
+            == mDecryptHandle->decryptApiType) {
+        return mDrmManagerClient->pread(mDecryptHandle, data, size, offset);
+    }
+
     if (offset != mOffset) {
         String8 host = mHost;
         String8 path = mPath;