From dcd25efb46c41c8d24a0a9cf61fb57f84149709e Mon Sep 17 00:00:00 2001
From: Gloria Wang <gwang@google.com>
Date: Tue, 22 Jun 2010 13:55:38 -0700
Subject: DRM framework support: - add a sniffer for DRM files - add DRMSource
 and DRMExtractor for es_based DRM - add pread in FileSource.cpp for
 container_based DRM - add native DRM framework API calls in the player for  
 DRM audio/video playback

Change-Id: I4b9ef19165c9b4f44ff40eeededb9a665e78a90f
---
 media/libstagefright/include/AwesomePlayer.h  |  6 +++
 media/libstagefright/include/DRMExtractor.h   | 59 +++++++++++++++++++++++++++
 media/libstagefright/include/MPEG4Extractor.h | 17 ++++++++
 3 files changed, 82 insertions(+)
 create mode 100644 media/libstagefright/include/DRMExtractor.h

(limited to 'media/libstagefright/include')

diff --git a/media/libstagefright/include/AwesomePlayer.h b/media/libstagefright/include/AwesomePlayer.h
index 9455743..f0fd0f2 100644
--- a/media/libstagefright/include/AwesomePlayer.h
+++ b/media/libstagefright/include/AwesomePlayer.h
@@ -25,6 +25,7 @@
 #include <media/stagefright/HTTPDataSource.h>
 #include <media/stagefright/OMXClient.h>
 #include <utils/threads.h>
+#include <drm/DrmManagerClient.h>
 
 namespace android {
 
@@ -35,6 +36,8 @@ struct MediaExtractor;
 struct MediaSource;
 struct Prefetcher;
 struct TimeSource;
+class DrmManagerClinet;
+class DecryptHandle;
 
 struct AwesomeRenderer : public RefBase {
     AwesomeRenderer() {}
@@ -195,6 +198,9 @@ private:
         }
     } *mSuspensionState;
 
+    DrmManagerClient *mDrmManagerClient;
+    DecryptHandle *mDecryptHandle;
+
     status_t setDataSource_l(
             const char *uri,
             const KeyedVector<String8, String8> *headers = NULL);
diff --git a/media/libstagefright/include/DRMExtractor.h b/media/libstagefright/include/DRMExtractor.h
new file mode 100644
index 0000000..01e226e
--- /dev/null
+++ b/media/libstagefright/include/DRMExtractor.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DRM_EXTRACTOR_H_
+
+#define DRM_EXTRACTOR_H_
+
+#include <media/stagefright/MediaExtractor.h>
+#include <drm/DrmManagerClient.h>
+
+namespace android {
+
+class DataSource;
+class SampleTable;
+class String8;
+class DecryptHandle;
+
+class DRMExtractor : public MediaExtractor {
+public:
+    DRMExtractor(const sp<DataSource> &source, const char *mime);
+
+    virtual size_t countTracks();
+    virtual sp<MediaSource> getTrack(size_t index);
+    virtual sp<MetaData> getTrackMetaData(size_t index, uint32_t flags);
+    virtual sp<MetaData> getMetaData();
+
+protected:
+    virtual ~DRMExtractor();
+
+private:
+    sp<DataSource> mDataSource;
+
+    sp<MediaExtractor> mOriginalExtractor;
+    DecryptHandle* mDecryptHandle;
+
+    DRMExtractor(const DRMExtractor &);
+    DRMExtractor &operator=(const DRMExtractor &);
+};
+
+bool SniffDRM(
+        const sp<DataSource> &source, String8 *mimeType, float *confidence);
+
+}  // namespace android
+
+#endif  // DRM_EXTRACTOR_H_
+
diff --git a/media/libstagefright/include/MPEG4Extractor.h b/media/libstagefright/include/MPEG4Extractor.h
index c8663d5..849bc89 100644
--- a/media/libstagefright/include/MPEG4Extractor.h
+++ b/media/libstagefright/include/MPEG4Extractor.h
@@ -38,6 +38,10 @@ public:
 
     virtual sp<MetaData> getMetaData();
 
+    // for DRM
+    virtual void setDrmFlag(bool flag);
+    virtual char* getDrmTrackInfo(size_t trackID, int *len);
+
 protected:
     virtual ~MPEG4Extractor();
 
@@ -70,6 +74,19 @@ private:
 
     static status_t verifyTrack(Track *track);
 
+    struct SINF {
+        SINF *next;
+        uint16_t trackID;
+        uint8_t IPMPDescriptorID;
+        ssize_t len;
+        char *IPMPData;
+    };
+
+    SINF *mFirstSINF;
+
+    bool mIsDrm;
+    status_t parseDrmSINF(off_t *offset, off_t data_offset);
+
     MPEG4Extractor(const MPEG4Extractor &);
     MPEG4Extractor &operator=(const MPEG4Extractor &);
 };
-- 
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