6af1c96d50
This patch implements most functionalities for Media Foundation ClearKey CDM, except the decryption part which will be implemented in bug 1870722 because there are still some unknown crashes happening during EME playback we need to address. Having this clearkey CDM allows us to start testing EME playback for the media engine. Currently we only have very limited test coverage for that. Differential Revision: https://phabricator.services.mozilla.com/D174991
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef DOM_MEDIA_PLATFORM_WMF_CLEARKEY_WMFDECRYPTEDBLOCK_H
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#define DOM_MEDIA_PLATFORM_WMF_CLEARKEY_WMFDECRYPTEDBLOCK_H
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#include <vector>
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#include "WMFClearKeyUtils.h"
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#include "content_decryption_module.h"
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namespace mozilla {
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// This class is used to store the decrypted data. It will be allocated by
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// `SessionManagerWrapper::Allocate`.
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class WMFDecryptedBuffer : public cdm::Buffer {
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public:
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explicit WMFDecryptedBuffer(size_t aSize) {
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SetSize(aSize);
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LOG("WMFDecryptedBuffer ctor %p, sz=%u", this, Size());
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}
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~WMFDecryptedBuffer() override {
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LOG("WMFDecryptedBuffer dtor %p, sz=%u", this, Size());
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}
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WMFDecryptedBuffer(const WMFDecryptedBuffer&) = delete;
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WMFDecryptedBuffer& operator=(const WMFDecryptedBuffer&) = delete;
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// This is not good, but that is how cdm::buffer works.
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void Destroy() override { delete this; }
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uint32_t Capacity() const override { return mBuffer.size(); }
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uint8_t* Data() override { return mBuffer.data(); }
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void SetSize(uint32_t aSize) override { return mBuffer.resize(aSize); }
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uint32_t Size() const override { return mBuffer.size(); }
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private:
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std::vector<uint8_t> mBuffer;
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};
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class WMFDecryptedBlock : public cdm::DecryptedBlock {
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public:
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WMFDecryptedBlock() : mBuffer(nullptr), mTimestamp(0) {
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LOG("WMFDecryptedBlock ctor %p", this);
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}
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~WMFDecryptedBlock() override {
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LOG("WMFDecryptedBlock dtor %p", this);
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if (mBuffer) {
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mBuffer->Destroy();
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mBuffer = nullptr;
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}
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}
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void SetDecryptedBuffer(cdm::Buffer* aBuffer) override {
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LOG("WMFDecryptedBlock(%p)::SetDecryptedBuffer, buffer=%p", this, aBuffer);
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mBuffer = aBuffer;
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}
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cdm::Buffer* DecryptedBuffer() override { return mBuffer; }
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void SetTimestamp(int64_t aTimestamp) override { mTimestamp = aTimestamp; }
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int64_t Timestamp() const override { return mTimestamp; }
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private:
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cdm::Buffer* mBuffer;
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int64_t mTimestamp;
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};
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} // namespace mozilla
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#endif // DOM_MEDIA_PLATFORM_WMF_CLEARKEY_WMFDECRYPTEDBLOCK_H
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