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// Copyright 2017 The Cobalt Authors. All Rights Reserved.
//
// 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.
#ifndef STARBOARD_SHARED_WIN32_AUDIO_DECODER_THREAD_H_
#define STARBOARD_SHARED_WIN32_AUDIO_DECODER_THREAD_H_
#include <deque>
#include <queue>
#include "starboard/common/atomic.h"
#include "starboard/common/ref_counted.h"
#include "starboard/common/scoped_ptr.h"
#include "starboard/common/semaphore.h"
#include "starboard/common/thread.h"
#include "starboard/media.h"
#include "starboard/shared/starboard/player/decoded_audio_internal.h"
#include "starboard/shared/starboard/player/filter/audio_decoder_internal.h"
#include "starboard/shared/win32/media_common.h"
#include "starboard/shared/win32/win32_audio_decoder.h"
namespace starboard {
namespace shared {
namespace win32 {
class AudioDecodedCallback {
public:
virtual ~AudioDecodedCallback() {}
virtual void OnAudioDecoded(DecodedAudioPtr data) = 0;
};
// This decoder thread simplifies decoding media. Data is pushed in via
// QueueInput() and QueueEndOfStream() and output data is pushed via
// the AudioDecodedCallback.
class AudioDecoderThread : private Thread {
public:
AudioDecoderThread(AbstractWin32AudioDecoder* decoder_impl,
AudioDecodedCallback* callback);
~AudioDecoderThread() override;
// Returns true if more input can be pushed to this thread.
bool QueueInput(const scoped_refptr<InputBuffer>& buffer);
void QueueEndOfStream();
private:
void Run() override;
void TransferPendingInputTo(
std::deque<scoped_refptr<InputBuffer> >* destination);
AbstractWin32AudioDecoder* win32_audio_decoder_;
AudioDecodedCallback* callback_;
std::deque<scoped_refptr<InputBuffer> > input_buffer_queue_;
::starboard::Mutex input_buffer_queue_mutex_;
atomic_int32_t processing_elements_;
Semaphore semaphore_;
};
} // namespace win32
} // namespace shared
} // namespace starboard
#endif // STARBOARD_SHARED_WIN32_AUDIO_DECODER_THREAD_H_