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// Copyright 2013 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_DEMUXER_ANDROID_H_
#define MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_
#include "base/basictypes.h"
#include "base/time/time.h"
#include "media/base/demuxer_stream.h"
#include "media/base/media_export.h"
namespace media {
class DemuxerAndroidClient;
struct DemuxerConfigs;
struct DemuxerData;
// Defines a demuxer with asynchronous operations.
class MEDIA_EXPORT DemuxerAndroid {
public:
virtual ~DemuxerAndroid() {}
// Initializes this demuxer with |client| as the callback handler.
// Must be called prior to calling any other methods.
virtual void Initialize(DemuxerAndroidClient* client) = 0;
// Called to request the current audio/video decoder configurations.
virtual void RequestDemuxerConfigs() = 0;
// Called to request additional data from the demuxer.
virtual void RequestDemuxerData(media::DemuxerStream::Type type) = 0;
// Called to request the demuxer to seek to a particular media time.
// |is_browser_seek| is true if the renderer is not previously expecting this
// seek and must coordinate with other regular seeks. Browser seek existence
// should be hidden as much as possible from the renderer player and web apps.
// TODO(wolenetz): Instead of doing browser seek, replay cached data since
// last keyframe. See http://crbug.com/304234.
virtual void RequestDemuxerSeek(const base::TimeDelta& time_to_seek,
bool is_browser_seek) = 0;
};
// Defines the client callback interface.
class MEDIA_EXPORT DemuxerAndroidClient {
public:
// Called in response to RequestDemuxerConfigs() and also when the demuxer has
// initialized.
//
// TODO(scherkus): Perhaps clients should be required to call
// RequestDemuxerConfigs() to initialize themselves instead of the demuxer
// calling this method without being prompted.
virtual void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) = 0;
// Called in response to RequestDemuxerData().
virtual void OnDemuxerDataAvailable(const DemuxerData& params) = 0;
// Called in response to RequestDemuxerSeek().
// If this is in response to a request with |is_browser_seek| set to true,
// then |actual_browser_seek_time| may differ from the requested
// |time_to_seek|, and reflects the actual time seeked to by the demuxer.
// For regular demuxer seeks, |actual_browser_seek_time| is kNoTimestamp() and
// should be ignored by browser player.
virtual void OnDemuxerSeekDone(
base::TimeDelta actual_browser_seek_time) = 0;
// Called whenever the demuxer has detected a duration change.
virtual void OnDemuxerDurationChanged(base::TimeDelta duration) = 0;
protected:
virtual ~DemuxerAndroidClient() {}
};
} // namespace media
#endif // MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_
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