From ec77122351b4e78c1fe5b60a208f76baf8c67591 Mon Sep 17 00:00:00 2001
From: Marco Nelissen <marcone@google.com>
Date: Mon, 8 Apr 2013 14:30:57 -0700
Subject: Add support for common encryption

b/7465749

Change-Id: I5403b74a5ae428ad28b382863a09daafc400b137
---
 media/libstagefright/DataSource.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'media/libstagefright/DataSource.cpp')

diff --git a/media/libstagefright/DataSource.cpp b/media/libstagefright/DataSource.cpp
index 19b38ee..fc6fd9c 100644
--- a/media/libstagefright/DataSource.cpp
+++ b/media/libstagefright/DataSource.cpp
@@ -58,6 +58,19 @@ bool DataSource::getUInt16(off64_t offset, uint16_t *x) {
     return true;
 }
 
+bool DataSource::getUInt24(off64_t offset, uint32_t *x) {
+    *x = 0;
+
+    uint8_t byte[3];
+    if (readAt(offset, byte, 3) != 3) {
+        return false;
+    }
+
+    *x = (byte[0] << 16) | (byte[1] << 8) | byte[2];
+
+    return true;
+}
+
 bool DataSource::getUInt32(off64_t offset, uint32_t *x) {
     *x = 0;
 
-- 
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