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// Copyright 2014 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 CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_
#define CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "chromecast/media/cma/pipeline/av_pipeline_client.h"
#include "chromecast/public/media/media_pipeline_backend.h"
#include "chromecast/public/media/stream_id.h"
namespace media {
class AudioDecoderConfig;
class VideoDecoderConfig;
}
namespace chromecast {
namespace media {
class AvPipelineImpl;
class BrowserCdmCast;
class BufferingState;
class CodedFrameProvider;
class AudioPipelineImpl {
public:
AudioPipelineImpl(MediaPipelineBackend::AudioDecoder* decoder,
const AvPipelineClient& client);
~AudioPipelineImpl();
// Input port of the pipeline.
void SetCodedFrameProvider(scoped_ptr<CodedFrameProvider> frame_provider);
// Provide the CDM to use to decrypt samples.
void SetCdm(BrowserCdmCast* media_keys);
// Functions to control the state of the audio pipeline.
void Initialize(
const ::media::AudioDecoderConfig& config,
scoped_ptr<CodedFrameProvider> frame_provider,
const ::media::PipelineStatusCB& status_cb);
bool StartPlayingFrom(base::TimeDelta time,
const scoped_refptr<BufferingState>& buffering_state);
void Flush(const ::media::PipelineStatusCB& status_cb);
void Stop();
// Update the playback statistics for this audio stream.
void UpdateStatistics();
void SetVolume(float volume);
void OnBufferPushed(MediaPipelineBackend::BufferStatus status);
void OnEndOfStream();
void OnError();
private:
void OnFlushDone(const ::media::PipelineStatusCB& status_cb);
void OnUpdateConfig(StreamId id,
const ::media::AudioDecoderConfig& audio_config,
const ::media::VideoDecoderConfig& video_config);
MediaPipelineBackend::AudioDecoder* decoder_;
scoped_ptr<AvPipelineImpl> av_pipeline_impl_;
AvPipelineClient audio_client_;
::media::PipelineStatistics previous_stats_;
base::WeakPtr<AudioPipelineImpl> weak_this_;
base::WeakPtrFactory<AudioPipelineImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(AudioPipelineImpl);
};
} // namespace media
} // namespace chromecast
#endif // CHROMECAST_MEDIA_CMA_BASE_AUDIO_PIPELINE_IMPL_H_
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