mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
121 lines
3.5 KiB
C++
121 lines
3.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef CDMCaps_h_
|
|
#define CDMCaps_h_
|
|
|
|
#include "nsString.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "mozilla/Monitor.h"
|
|
#include "nsIThread.h"
|
|
#include "nsTArray.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "SamplesWaitingForKey.h"
|
|
|
|
namespace mozilla {
|
|
|
|
// CDM capabilities; what keys a CDMProxy can use, and whether it can decrypt, or
|
|
// decrypt-and-decode on a per stream basis. Must be locked to access state.
|
|
class CDMCaps {
|
|
public:
|
|
CDMCaps();
|
|
~CDMCaps();
|
|
|
|
// Locks the CDMCaps. It must be locked to access its shared state.
|
|
// Threadsafe when locked.
|
|
class MOZ_STACK_CLASS AutoLock {
|
|
public:
|
|
explicit AutoLock(CDMCaps& aKeyCaps);
|
|
~AutoLock();
|
|
|
|
// Returns true if the capabilities of the CDM are known, i.e. they have
|
|
// been reported by the CDM to Gecko.
|
|
bool AreCapsKnown();
|
|
|
|
bool IsKeyUsable(const CencKeyId& aKeyId);
|
|
|
|
// Returns true if setting this key usable results in the usable keys
|
|
// changing for this session, i.e. the key was not previously marked usable.
|
|
bool SetKeyUsable(const CencKeyId& aKeyId, const nsString& aSessionId);
|
|
|
|
// Returns true if setting this key unusable results in the usable keys
|
|
// changing for this session, i.e. the key was previously marked usable.
|
|
bool SetKeyUnusable(const CencKeyId& aKeyId, const nsString& aSessionId);
|
|
|
|
void GetUsableKeysForSession(const nsAString& aSessionId,
|
|
nsTArray<CencKeyId>& aOutKeyIds);
|
|
|
|
// Sets the capabilities of the CDM. aCaps is the logical OR of the
|
|
// GMP_EME_CAP_* flags from gmp-decryption.h.
|
|
void SetCaps(uint64_t aCaps);
|
|
|
|
bool CanDecryptAndDecodeAudio();
|
|
bool CanDecryptAndDecodeVideo();
|
|
|
|
bool CanDecryptAudio();
|
|
bool CanDecryptVideo();
|
|
|
|
void CallOnMainThreadWhenCapsAvailable(nsIRunnable* aContinuation);
|
|
|
|
// Notifies the SamplesWaitingForKey when key become usable.
|
|
void NotifyWhenKeyIdUsable(const CencKeyId& aKey,
|
|
SamplesWaitingForKey* aSamplesWaiting);
|
|
private:
|
|
// Not taking a strong ref, since this should be allocated on the stack.
|
|
CDMCaps& mData;
|
|
};
|
|
|
|
private:
|
|
void Lock();
|
|
void Unlock();
|
|
bool HasCap(uint64_t);
|
|
|
|
struct WaitForKeys {
|
|
WaitForKeys(const CencKeyId& aKeyId,
|
|
SamplesWaitingForKey* aListener)
|
|
: mKeyId(aKeyId)
|
|
, mListener(aListener)
|
|
{}
|
|
CencKeyId mKeyId;
|
|
nsRefPtr<SamplesWaitingForKey> mListener;
|
|
};
|
|
|
|
Monitor mMonitor;
|
|
|
|
struct UsableKey {
|
|
UsableKey(const CencKeyId& aId,
|
|
const nsString& aSessionId)
|
|
: mId(aId)
|
|
, mSessionId(aSessionId)
|
|
{}
|
|
UsableKey(const UsableKey& aOther)
|
|
: mId(aOther.mId)
|
|
, mSessionId(aOther.mSessionId)
|
|
{}
|
|
bool operator==(const UsableKey& aOther) const {
|
|
return mId == aOther.mId &&
|
|
mSessionId == aOther.mSessionId;
|
|
};
|
|
|
|
CencKeyId mId;
|
|
nsString mSessionId;
|
|
};
|
|
nsTArray<UsableKey> mUsableKeyIds;
|
|
|
|
nsTArray<WaitForKeys> mWaitForKeys;
|
|
|
|
nsTArray<nsRefPtr<nsIRunnable>> mWaitForCaps;
|
|
uint64_t mCaps;
|
|
|
|
// It is not safe to copy this object.
|
|
CDMCaps(const CDMCaps&) MOZ_DELETE;
|
|
CDMCaps& operator=(const CDMCaps&) MOZ_DELETE;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif
|