diff --git a/drm/libdrmframework/DrmManagerClient.cpp b/drm/libdrmframework/DrmManagerClient.cpp
index c9c0d57..8768c08 100644
--- a/drm/libdrmframework/DrmManagerClient.cpp
+++ b/drm/libdrmframework/DrmManagerClient.cpp
@@ -116,12 +116,18 @@
     return mDrmManagerClientImpl->getAllSupportInfo(mUniqueId, length, drmSupportInfoArray);
 }
 
-sp<DecryptHandle> DrmManagerClient::openDecryptSession(int fd, off64_t offset, off64_t length) {
-    return mDrmManagerClientImpl->openDecryptSession(mUniqueId, fd, offset, length);
+sp<DecryptHandle> DrmManagerClient::openDecryptSession(
+        int fd, off64_t offset, off64_t length, const char* mime) {
+
+    return mDrmManagerClientImpl->openDecryptSession(
+                    mUniqueId, fd, offset, length, mime);
 }
 
-sp<DecryptHandle> DrmManagerClient::openDecryptSession(const char* uri) {
-    return mDrmManagerClientImpl->openDecryptSession(mUniqueId, uri);
+sp<DecryptHandle> DrmManagerClient::openDecryptSession(
+        const char* uri, const char* mime) {
+
+    return mDrmManagerClientImpl->openDecryptSession(
+                    mUniqueId, uri, mime);
 }
 
 status_t DrmManagerClient::closeDecryptSession(sp<DecryptHandle> &decryptHandle) {
diff --git a/drm/libdrmframework/DrmManagerClientImpl.cpp b/drm/libdrmframework/DrmManagerClientImpl.cpp
index b222b8f..fb0439e 100644
--- a/drm/libdrmframework/DrmManagerClientImpl.cpp
+++ b/drm/libdrmframework/DrmManagerClientImpl.cpp
@@ -255,15 +255,19 @@
 }
 
 sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
-            int uniqueId, int fd, off64_t offset, off64_t length) {
-    return getDrmManagerService()->openDecryptSession(uniqueId, fd, offset, length);
+            int uniqueId, int fd, off64_t offset,
+            off64_t length, const char* mime) {
+
+    return getDrmManagerService()->openDecryptSession(
+                uniqueId, fd, offset, length, mime);
 }
 
 sp<DecryptHandle> DrmManagerClientImpl::openDecryptSession(
-        int uniqueId, const char* uri) {
+        int uniqueId, const char* uri, const char* mime) {
+
     DecryptHandle* handle = NULL;
     if (NULL != uri) {
-        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri);
+        handle = getDrmManagerService()->openDecryptSession(uniqueId, uri, mime);
     }
     return handle;
 }
diff --git a/drm/libdrmframework/include/DrmManager.h b/drm/libdrmframework/include/DrmManager.h
index ac2b946..c9167d4 100644
--- a/drm/libdrmframework/include/DrmManager.h
+++ b/drm/libdrmframework/include/DrmManager.h
@@ -111,9 +111,10 @@
 
     status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
 
-    DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length);
+    DecryptHandle* openDecryptSession(
+            int uniqueId, int fd, off64_t offset, off64_t length, const char* mime);
 
-    DecryptHandle* openDecryptSession(int uniqueId, const char* uri);
+    DecryptHandle* openDecryptSession(int uniqueId, const char* uri, const char* mime);
 
     status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
 
diff --git a/drm/libdrmframework/include/DrmManagerClientImpl.h b/drm/libdrmframework/include/DrmManagerClientImpl.h
index e3338d9..2aa493f 100644
--- a/drm/libdrmframework/include/DrmManagerClientImpl.h
+++ b/drm/libdrmframework/include/DrmManagerClientImpl.h
@@ -300,20 +300,24 @@
      * @param[in] fd File descriptor of the protected content to be decrypted
      * @param[in] offset Start position of the content
      * @param[in] length The length of the protected content
+     * @param[in] mime The mime type of the protected content if it is not NULL or empty
      * @return
      *     Handle for the decryption session
      */
-    sp<DecryptHandle> openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length);
+    sp<DecryptHandle> openDecryptSession(
+            int uniqueId, int fd, off64_t offset, off64_t length, const char* mime);
 
     /**
      * Open the decrypt session to decrypt the given protected content
      *
      * @param[in] uniqueId Unique identifier for a session
      * @param[in] uri Path of the protected content to be decrypted
+     * @param[in] mime The mime type of the protected content if it is not NULL or empty
      * @return
      *     Handle for the decryption session
      */
-    sp<DecryptHandle> openDecryptSession(int uniqueId, const char* uri);
+    sp<DecryptHandle> openDecryptSession(
+            int uniqueId, const char* uri, const char* mime);
 
     /**
      * Close the decrypt session for the given handle
diff --git a/drm/libdrmframework/include/DrmManagerService.h b/drm/libdrmframework/include/DrmManagerService.h
index 9cb5804..1a8c2ae 100644
--- a/drm/libdrmframework/include/DrmManagerService.h
+++ b/drm/libdrmframework/include/DrmManagerService.h
@@ -98,9 +98,11 @@
 
     status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
 
-    DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length);
+    DecryptHandle* openDecryptSession(
+        int uniqueId, int fd, off64_t offset, off64_t length, const char *mime);
 
-    DecryptHandle* openDecryptSession(int uniqueId, const char* uri);
+    DecryptHandle* openDecryptSession(
+        int uniqueId, const char* uri, const char* mime);
 
     status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
 
diff --git a/drm/libdrmframework/include/IDrmManagerService.h b/drm/libdrmframework/include/IDrmManagerService.h
index b9618bb..a7d21c5 100644
--- a/drm/libdrmframework/include/IDrmManagerService.h
+++ b/drm/libdrmframework/include/IDrmManagerService.h
@@ -139,9 +139,12 @@
     virtual status_t getAllSupportInfo(
             int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray) = 0;
 
-    virtual DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length) = 0;
+    virtual DecryptHandle* openDecryptSession(
+                int uniqueId, int fd, off64_t offset,
+                off64_t length, const char* mime) = 0;
 
-    virtual DecryptHandle* openDecryptSession(int uniqueId, const char* uri) = 0;
+    virtual DecryptHandle* openDecryptSession(
+                int uniqueId, const char* uri, const char* mime) = 0;
 
     virtual status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) = 0;
 
@@ -222,9 +225,12 @@
     virtual status_t getAllSupportInfo(
             int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
 
-    virtual DecryptHandle* openDecryptSession(int uniqueId, int fd, off64_t offset, off64_t length);
+    virtual DecryptHandle* openDecryptSession(
+                int uniqueId, int fd, off64_t offset, off64_t length,
+                const char* mime);
 
-    virtual DecryptHandle* openDecryptSession(int uniqueId, const char* uri);
+    virtual DecryptHandle* openDecryptSession(
+                int uniqueId, const char* uri, const char* mime);
 
     virtual status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
 
diff --git a/drm/libdrmframework/plugins/common/include/DrmEngineBase.h b/drm/libdrmframework/plugins/common/include/DrmEngineBase.h
index 4a5afcf..08f6e6d 100644
--- a/drm/libdrmframework/plugins/common/include/DrmEngineBase.h
+++ b/drm/libdrmframework/plugins/common/include/DrmEngineBase.h
@@ -80,10 +80,12 @@
     DrmSupportInfo* getSupportInfo(int uniqueId);
 
     status_t openDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length);
+            int uniqueId, DecryptHandle* decryptHandle,
+            int fd, off64_t offset, off64_t length, const char* mime);
 
     status_t openDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, const char* uri);
+            int uniqueId, DecryptHandle* decryptHandle,
+            const char* uri, const char* mime);
 
     status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
 
@@ -375,7 +377,29 @@
      *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
      */
     virtual status_t onOpenDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length) = 0;
+            int uniqueId, DecryptHandle* decryptHandle,
+            int fd, off64_t offset, off64_t length) = 0;
+
+    /**
+     * Open the decrypt session to decrypt the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the current decryption session
+     * @param[in] fd File descriptor of the protected content to be decrypted
+     * @param[in] offset Start position of the content
+     * @param[in] length The length of the protected content
+     * @param[in] mime Mime type of the protected content
+     *     drm plugin may do some optimization since the mime type is known.
+     * @return
+     *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
+     */
+    virtual status_t onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle,
+            int fd, off64_t offset, off64_t length,
+            const char* mime) {
+
+        return DRM_ERROR_CANNOT_HANDLE;
+    }
 
     /**
      * Open the decrypt session to decrypt the given protected content
@@ -387,7 +411,26 @@
      *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
      */
     virtual status_t onOpenDecryptSession(
-            int uniqueId, DecryptHandle* decryptHandle, const char* uri) = 0;
+            int uniqueId, DecryptHandle* decryptHandle,
+            const char* uri) = 0;
+
+    /**
+     * Open the decrypt session to decrypt the given protected content
+     *
+     * @param[in] uniqueId Unique identifier for a session
+     * @param[in] decryptHandle Handle for the current decryption session
+     * @param[in] uri Path of the protected content to be decrypted
+     * @param[in] mime Mime type of the protected content. The corresponding
+     *     drm plugin may do some optimization since the mime type is known.
+     * @return
+     *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
+     */
+    virtual status_t onOpenDecryptSession(
+            int uniqueId, DecryptHandle* decryptHandle,
+            const char* uri, const char* mime) {
+
+        return DRM_ERROR_CANNOT_HANDLE;
+    }
 
     /**
      * Close the decrypt session for the given handle
diff --git a/drm/libdrmframework/plugins/common/include/IDrmEngine.h b/drm/libdrmframework/plugins/common/include/IDrmEngine.h
index 77460f6..dcf5977 100644
--- a/drm/libdrmframework/plugins/common/include/IDrmEngine.h
+++ b/drm/libdrmframework/plugins/common/include/IDrmEngine.h
@@ -320,11 +320,14 @@
      * @param[in] fd File descriptor of the protected content to be decrypted
      * @param[in] offset Start position of the content
      * @param[in] length The length of the protected content
+     * @param[in] mime Mime type of the protected content if it is
+     *     not NULL or empty
      * @return
      *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
      */
     virtual status_t openDecryptSession(
-        int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length) = 0;
+        int uniqueId, DecryptHandle* decryptHandle,
+        int fd, off64_t offset, off64_t length, const char* mime) = 0;
 
     /**
      * Open the decrypt session to decrypt the given protected content
@@ -332,11 +335,14 @@
      * @param[in] uniqueId Unique identifier for a session
      * @param[in] decryptHandle Handle for the current decryption session
      * @param[in] uri Path of the protected content to be decrypted
+     * @param[in] mime Mime type of the protected content if it is
+     *     not NULL or empty
      * @return
      *     DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success
      */
     virtual status_t openDecryptSession(
-        int uniqueId, DecryptHandle* decryptHandle, const char* uri) = 0;
+        int uniqueId, DecryptHandle* decryptHandle,
+        const char* uri, const char* mime) = 0;
 
     /**
      * Close the decrypt session for the given handle