a9f82e979f
Allows the WV extractor to run in a mode that is compatible with
the DRM CryptoPlugin HAL API, where decryption is deferred
until the encrypted data is sent through the CryptoPlugin to
the codec.
This patch does:
(1) Adds a flag mCryptoPluginMode that controls this behavior
[Note: need framework support to enable/disable this]
(2) Accumulates information in track metadata to delineate
crypto unit boundaries for the CryptoPlugin
related-to-bug: 5986621
Change-Id: I3318d5cde38c7b02a7bdb56aca9aece852c9781c
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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* Copyright (C) 2011 Google, Inc. All Rights Reserved
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*/
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#ifndef WVMMEDIA_SOURCE_H_
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#define WVMMEDIA_SOURCE_H_
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#include "AndroidConfig.h"
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#include "WVStreamControlAPI.h"
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#include <media/stagefright/DataSource.h>
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#include <media/stagefright/MediaSource.h>
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#include <media/stagefright/MetaData.h>
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#include <media/stagefright/MediaBufferGroup.h>
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#include <utils/RefBase.h>
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#ifdef REQUIRE_SECURE_BUFFERS
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#include "OEMCrypto_L1.h"
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#endif
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namespace android {
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class WVMFileSource;
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class WVMMediaSource : public MediaSource {
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public:
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WVMMediaSource(WVSession *session, WVEsSelector esSelector,
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const sp<MetaData> &metaData, bool isLive);
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void delegateFileSource(sp<WVMFileSource> fileSource);
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void delegateDataSource(sp<DataSource> dataSource);
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virtual status_t start(MetaData *params = NULL);
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virtual status_t stop();
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virtual sp<MetaData> getFormat();
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virtual status_t setBuffers(const Vector<MediaBuffer *> &buffers);
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virtual status_t read(MediaBuffer **buffer, const ReadOptions *options = NULL);
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void addEncryptedSize(size_t size) { mEncryptedSizes.push_back(size); }
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static int sLastError;
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#ifdef REQUIRE_SECURE_BUFFERS
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class DecryptContext {
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public:
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void Initialize(MediaBuffer *mediaBuf) {
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mMediaBuf = mediaBuf;
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mOffset = 0;
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memset(mIV, 0, sizeof(mIV));
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}
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MediaBuffer *mMediaBuf;
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size_t mOffset;
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static const int kCryptoBlockSize = 16;
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unsigned char mIV[kCryptoBlockSize];
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};
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static WVStatus DecryptCallback(WVEsSelector esType, void* input, void* output, size_t length,
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int key, unsigned long long dts, unsigned long long pts,
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bool au_end, void *context);
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DecryptContext& getDecryptContext() { return mDecryptContext; }
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private:
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DecryptContext mDecryptContext;
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#endif
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protected:
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virtual ~WVMMediaSource();
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private:
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Mutex mLock;
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WVSession *mSession;
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WVEsSelector mESSelector; // indicates audio vs. video
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sp<MetaData> mTrackMetaData;
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bool mStarted;
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bool mLogOnce;
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bool mIsLiveStream;
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bool mNewSegment;
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bool mCryptoPluginMode;
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MediaBufferGroup *mGroup;
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unsigned long long mDts;
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unsigned long long mPts;
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sp<WVMFileSource> mFileSource;
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sp<DataSource> mDataSource;
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Vector<size_t> mEncryptedSizes;
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void allocBufferGroup();
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WVMMediaSource(const WVMMediaSource &);
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WVMMediaSource &operator=(const WVMMediaSource &);
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};
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} // namespace android
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#endif // WVMMEDIA_SOURCE_H_
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