Provisional support for secure decryption of media streams.
Change-Id: Ib3982a9c960bfdb0cb7e1b174440b141b194cfbe
diff --git a/include/media/ICrypto.h b/include/media/ICrypto.h
new file mode 100644
index 0000000..916abe0
--- /dev/null
+++ b/include/media/ICrypto.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+#include <binder/IInterface.h>
+#include <media/stagefright/foundation/ABase.h>
+
+#ifndef ANDROID_ICRYPTO_H_
+
+#define ANDROID_ICRYPTO_H_
+
+namespace android {
+
+struct ICrypto : public IInterface {
+ DECLARE_META_INTERFACE(Crypto);
+
+ virtual status_t initialize() = 0;
+ virtual status_t terminate() = 0;
+
+ virtual status_t setEntitlementKey(
+ const void *key, size_t keyLength) = 0;
+
+ virtual status_t setEntitlementControlMessage(
+ const void *msg, size_t msgLength) = 0;
+
+ // "dstData" is in media_server's address space (but inaccessible).
+ virtual ssize_t decryptVideo(
+ const void *iv, size_t ivLength,
+ const void *srcData, size_t srcDataSize,
+ void *dstData, size_t dstDataOffset) = 0;
+
+ // "dstData" is in the calling process' address space.
+ virtual ssize_t decryptAudio(
+ const void *iv, size_t ivLength,
+ const void *srcData, size_t srcDataSize,
+ void *dstData, size_t dstDataSize) = 0;
+
+private:
+ DISALLOW_EVIL_CONSTRUCTORS(ICrypto);
+};
+
+struct BnCrypto : public BnInterface<ICrypto> {
+ virtual status_t onTransact(
+ uint32_t code, const Parcel &data, Parcel *reply,
+ uint32_t flags = 0);
+};
+
+} // namespace android
+
+#endif // ANDROID_ICRYPTO_H_
+
diff --git a/include/media/IMediaPlayerService.h b/include/media/IMediaPlayerService.h
index 4f46fcd..76c45a0 100644
--- a/include/media/IMediaPlayerService.h
+++ b/include/media/IMediaPlayerService.h
@@ -31,6 +31,7 @@
namespace android {
+struct ICrypto;
class IMediaRecorder;
class IOMX;
struct IStreamSource;
@@ -47,6 +48,7 @@
virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) = 0;
virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) = 0;
virtual sp<IOMX> getOMX() = 0;
+ virtual sp<ICrypto> makeCrypto() = 0;
// codecs and audio devices usage tracking for the battery app
enum BatteryDataBits {
diff --git a/include/media/stagefright/ACodec.h b/include/media/stagefright/ACodec.h
index fa1a416..7d7af63 100644
--- a/include/media/stagefright/ACodec.h
+++ b/include/media/stagefright/ACodec.h
@@ -89,6 +89,10 @@
kPortIndexOutput = 1
};
+ enum {
+ kFlagIsSecure = 1,
+ };
+
struct BufferInfo {
enum Status {
OWNED_BY_US,
@@ -118,6 +122,7 @@
sp<FlushingState> mFlushingState;
AString mComponentName;
+ uint32_t mFlags;
uint32_t mQuirks;
sp<IOMX> mOMX;
IOMX::node_id mNode;
@@ -176,7 +181,8 @@
status_t setupAACCodec(
bool encoder,
- int32_t numChannels, int32_t sampleRate, int32_t bitRate);
+ int32_t numChannels, int32_t sampleRate, int32_t bitRate,
+ bool isADTS);
status_t selectAudioPortFormat(
OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat);
diff --git a/include/media/stagefright/MediaCodec.h b/include/media/stagefright/MediaCodec.h
index 72ac56a..0fc88e1 100644
--- a/include/media/stagefright/MediaCodec.h
+++ b/include/media/stagefright/MediaCodec.h
@@ -27,18 +27,21 @@
struct ABuffer;
struct ACodec;
struct AMessage;
+struct ICrypto;
struct SoftwareRenderer;
struct SurfaceTextureClient;
struct MediaCodec : public AHandler {
enum ConfigureFlags {
CONFIGURE_FLAG_ENCODE = 1,
+ CONFIGURE_FLAG_SECURE = 2,
};
enum BufferFlags {
BUFFER_FLAG_SYNCFRAME = 1,
BUFFER_FLAG_CODECCONFIG = 2,
BUFFER_FLAG_EOS = 4,
+ BUFFER_FLAG_ENCRYPTED = 8,
};
static sp<MediaCodec> CreateByType(
@@ -137,11 +140,13 @@
kFlagStickyError = 8,
kFlagDequeueInputPending = 16,
kFlagDequeueOutputPending = 32,
+ kFlagIsSecure = 64,
};
struct BufferInfo {
void *mBufferID;
sp<ABuffer> mData;
+ sp<ABuffer> mEncryptedData;
sp<AMessage> mNotify;
bool mOwnedByClient;
};
@@ -165,6 +170,8 @@
int32_t mDequeueOutputTimeoutGeneration;
uint32_t mDequeueOutputReplyID;
+ sp<ICrypto> mCrypto;
+
MediaCodec(const sp<ALooper> &looper);
static status_t PostAndAwaitResponse(
diff --git a/include/media/stagefright/MetaData.h b/include/media/stagefright/MetaData.h
index c3ccb56..639446e 100644
--- a/include/media/stagefright/MetaData.h
+++ b/include/media/stagefright/MetaData.h
@@ -128,6 +128,12 @@
kKeyTextFormatData = 'text', // raw data
kKeyRequiresSecureBuffers = 'secu', // bool (int32_t)
+
+ kKeyScrambling = 'scrm', // int32_t
+ kKeyEMM = 'emm ', // raw data
+ kKeyECM = 'ecm ', // raw data
+
+ kKeyIsADTS = 'adts', // bool (int32_t)
};
enum {
diff --git a/include/media/stagefright/NuMediaExtractor.h b/include/media/stagefright/NuMediaExtractor.h
index 96efdff..07c7be5 100644
--- a/include/media/stagefright/NuMediaExtractor.h
+++ b/include/media/stagefright/NuMediaExtractor.h
@@ -31,6 +31,11 @@
struct MediaSource;
struct NuMediaExtractor : public RefBase {
+ enum SampleFlags {
+ SAMPLE_FLAG_SYNC = 1,
+ SAMPLE_FLAG_ENCRYPTED = 2,
+ };
+
NuMediaExtractor();
status_t setDataSource(const char *path);
@@ -46,6 +51,7 @@
status_t readSampleData(const sp<ABuffer> &buffer);
status_t getSampleTrackIndex(size_t *trackIndex);
status_t getSampleTime(int64_t *sampleTimeUs);
+ status_t getSampleFlags(uint32_t *sampleFlags);
protected:
virtual ~NuMediaExtractor();
@@ -61,7 +67,9 @@
status_t mFinalResult;
MediaBuffer *mSample;
int64_t mSampleTimeUs;
- uint32_t mFlags; // bitmask of "TrackFlags"
+ uint32_t mSampleFlags;
+
+ uint32_t mTrackFlags; // bitmask of "TrackFlags"
};
sp<MediaExtractor> mImpl;
diff --git a/include/media/stagefright/OMXCodec.h b/include/media/stagefright/OMXCodec.h
index 7c612ba..7d51dee 100644
--- a/include/media/stagefright/OMXCodec.h
+++ b/include/media/stagefright/OMXCodec.h
@@ -238,7 +238,11 @@
void setComponentRole();
void setAMRFormat(bool isWAMR, int32_t bitRate);
- status_t setAACFormat(int32_t numChannels, int32_t sampleRate, int32_t bitRate);
+
+ status_t setAACFormat(
+ int32_t numChannels, int32_t sampleRate, int32_t bitRate,
+ bool isADTS);
+
void setG711Format(int32_t numChannels);
status_t setVideoPortFormatType(
diff --git a/include/media/stagefright/foundation/AString.h b/include/media/stagefright/foundation/AString.h
index 55ade64..0f8f1e1 100644
--- a/include/media/stagefright/foundation/AString.h
+++ b/include/media/stagefright/foundation/AString.h
@@ -73,6 +73,7 @@
int compare(const AString &other) const;
bool startsWith(const char *prefix) const;
+ bool endsWith(const char *suffix) const;
void tolower();