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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_BASE_ANDROID_MEDIA_CRYPTO_CONTEXT_H_
#define MEDIA_BASE_ANDROID_MEDIA_CRYPTO_CONTEXT_H_
#include <memory>
#include "base/callback.h"
#include "base/macros.h"
#include "media/base/android/android_util.h"
#include "media/base/media_export.h"
#include "media/base/player_tracker.h"
namespace media {
// A class that provides MediaCrypto from MediaDrm to support decrypting and
// decoding of encrypted streams, typically by MediaCodec-based decoders.
//
// Methods can be called on any thread. The registered callbacks can be fired
// on any thread. The caller should make sure that the callbacks are posted to
// the correct thread.
//
// TODO(xhwang): Remove PlayerTracker interface.
class MEDIA_EXPORT MediaCryptoContext : public PlayerTracker {
public:
// Notification called when MediaCrypto object is ready.
// Parameters:
// |media_crypto| - global reference to MediaCrypto object. |media_crypto| is
// always a non-null std::unique_ptr, but the JavaRef it
// contains can point to a null object.
// |requires_secure_video_codec| - true if secure video decoder is required.
// Should be ignored if |media_crypto|
// contains null MediaCrypto object.
using MediaCryptoReadyCB =
base::Callback<void(JavaObjectPtr media_crypto,
bool requires_secure_video_codec)>;
MediaCryptoContext() {}
~MediaCryptoContext() override {}
virtual void SetMediaCryptoReadyCB(
const MediaCryptoReadyCB& media_crypto_ready_cb) = 0;
DISALLOW_COPY_AND_ASSIGN(MediaCryptoContext);
};
} // namespace media
#endif // MEDIA_BASE_ANDROID_MEDIA_CRYPTO_CONTEXT_H_
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