1 // Copyright 2013 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_ 6 #define MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_ 7 8 #include "base/basictypes.h" 9 #include "base/time/time.h" 10 #include "media/base/demuxer_stream.h" 11 #include "media/base/media_export.h" 12 13 namespace media { 14 15 class DemuxerAndroidClient; 16 struct DemuxerConfigs; 17 struct DemuxerData; 18 19 // Defines a demuxer with asynchronous operations. 20 class MEDIA_EXPORT DemuxerAndroid { 21 public: 22 virtual ~DemuxerAndroid() {} 23 24 // Initializes this demuxer with |client| as the callback handler. 25 // Must be called prior to calling any other methods. 26 virtual void Initialize(DemuxerAndroidClient* client) = 0; 27 28 // Called to request additional data from the demuxer. 29 virtual void RequestDemuxerData(media::DemuxerStream::Type type) = 0; 30 31 // Called to request the demuxer to seek to a particular media time. 32 // |is_browser_seek| is true if the renderer is not previously expecting this 33 // seek and must coordinate with other regular seeks. Browser seek existence 34 // should be hidden as much as possible from the renderer player and web apps. 35 // TODO(wolenetz): Instead of doing browser seek, replay cached data since 36 // last keyframe. See http://crbug.com/304234. 37 virtual void RequestDemuxerSeek(const base::TimeDelta& time_to_seek, 38 bool is_browser_seek) = 0; 39 }; 40 41 // Defines the client callback interface. 42 class MEDIA_EXPORT DemuxerAndroidClient { 43 public: 44 // Called when the demuxer has initialized. 45 virtual void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) = 0; 46 47 // Called in response to RequestDemuxerData(). 48 virtual void OnDemuxerDataAvailable(const DemuxerData& params) = 0; 49 50 // Called in response to RequestDemuxerSeek(). 51 // If this is in response to a request with |is_browser_seek| set to true, 52 // then |actual_browser_seek_time| may differ from the requested 53 // |time_to_seek|, and reflects the actual time seeked to by the demuxer. 54 // For regular demuxer seeks, |actual_browser_seek_time| is kNoTimestamp() and 55 // should be ignored by browser player. 56 virtual void OnDemuxerSeekDone( 57 base::TimeDelta actual_browser_seek_time) = 0; 58 59 // Called whenever the demuxer has detected a duration change. 60 virtual void OnDemuxerDurationChanged(base::TimeDelta duration) = 0; 61 62 protected: 63 virtual ~DemuxerAndroidClient() {} 64 }; 65 66 } // namespace media 67 68 #endif // MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_ 69
