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 the current audio/video decoder configurations. 29 virtual void RequestDemuxerConfigs() = 0; 30 31 // Called to request additional data from the demuxer. 32 virtual void RequestDemuxerData(media::DemuxerStream::Type type) = 0; 33 34 // Called to request the demuxer to seek to a particular media time. 35 // |is_browser_seek| is true if the renderer is not previously expecting this 36 // seek and must coordinate with other regular seeks. Browser seek existence 37 // should be hidden as much as possible from the renderer player and web apps. 38 // TODO(wolenetz): Instead of doing browser seek, replay cached data since 39 // last keyframe. See http://crbug.com/304234. 40 virtual void RequestDemuxerSeek(const base::TimeDelta& time_to_seek, 41 bool is_browser_seek) = 0; 42 }; 43 44 // Defines the client callback interface. 45 class MEDIA_EXPORT DemuxerAndroidClient { 46 public: 47 // Called in response to RequestDemuxerConfigs() and also when the demuxer has 48 // initialized. 49 // 50 // TODO(scherkus): Perhaps clients should be required to call 51 // RequestDemuxerConfigs() to initialize themselves instead of the demuxer 52 // calling this method without being prompted. 53 virtual void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) = 0; 54 55 // Called in response to RequestDemuxerData(). 56 virtual void OnDemuxerDataAvailable(const DemuxerData& params) = 0; 57 58 // Called in response to RequestDemuxerSeek(). 59 // If this is in response to a request with |is_browser_seek| set to true, 60 // then |actual_browser_seek_time| may differ from the requested 61 // |time_to_seek|, and reflects the actual time seeked to by the demuxer. 62 // For regular demuxer seeks, |actual_browser_seek_time| is kNoTimestamp() and 63 // should be ignored by browser player. 64 virtual void OnDemuxerSeekDone( 65 const base::TimeDelta& actual_browser_seek_time) = 0; 66 67 // Called whenever the demuxer has detected a duration change. 68 virtual void OnDemuxerDurationChanged(base::TimeDelta duration) = 0; 69 70 protected: 71 virtual ~DemuxerAndroidClient() {} 72 }; 73 74 } // namespace media 75 76 #endif // MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_ 77
