michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /*
michael@0:  * Copyright (c) 2014 The Linux Foundation. All rights reserved.
michael@0:  * Copyright (C) 2009 The Android Open Source Project
michael@0:  *
michael@0:  * Licensed under the Apache License, Version 2.0 (the "License");
michael@0:  * you may not use this file except in compliance with the License.
michael@0:  * You may obtain a copy of the License at
michael@0:  *
michael@0:  *      http://www.apache.org/licenses/LICENSE-2.0
michael@0:  *
michael@0:  * Unless required by applicable law or agreed to in writing, software
michael@0:  * distributed under the License is distributed on an "AS IS" BASIS,
michael@0:  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
michael@0:  * See the License for the specific language governing permissions and
michael@0:  * limitations under the License.
michael@0:  */
michael@0: 
michael@0: #ifndef AUDIO_OFFLOAD_PLAYER_BASE_H_
michael@0: #define AUDIO_OFFLOAD_PLAYER_BASE_H_
michael@0: 
michael@0: #include "MediaDecoderOwner.h"
michael@0: #include "MediaOmxDecoder.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: 
michael@0: class MediaOmxDecoder;
michael@0: 
michael@0: /**
michael@0:  * AudioOffloadPlayer interface class which has funtions used by MediaOmxDecoder
michael@0:  * This is to reduce the dependency of AudioOffloadPlayer in MediaOmxDecoder
michael@0:  */
michael@0: class AudioOffloadPlayerBase
michael@0: {
michael@0:   typedef android::status_t status_t;
michael@0:   typedef android::MediaSource MediaSource;
michael@0: 
michael@0: public:
michael@0:   virtual ~AudioOffloadPlayerBase() {};
michael@0: 
michael@0:   // Caller retains ownership of "aSource".
michael@0:   virtual void SetSource(const android::sp<MediaSource> &aSource) {}
michael@0: 
michael@0:   // Start the source if it's not already started and open the AudioSink to
michael@0:   // create an offloaded audio track
michael@0:   virtual status_t Start(bool aSourceAlreadyStarted = false)
michael@0:   {
michael@0:     return android::NO_INIT;
michael@0:   }
michael@0: 
michael@0:   virtual status_t ChangeState(MediaDecoder::PlayState aState)
michael@0:   {
michael@0:     return android::NO_INIT;
michael@0:   }
michael@0: 
michael@0:   virtual void SetVolume(double aVolume) {}
michael@0: 
michael@0:   virtual double GetMediaTimeSecs() { return 0; }
michael@0: 
michael@0:   // To update progress bar when the element is visible
michael@0:   virtual void SetElementVisibility(bool aIsVisible) {}
michael@0: 
michael@0:   // Update ready state based on current play state. Not checking data
michael@0:   // availability since offloading is currently done only when whole compressed
michael@0:   // data is available
michael@0:   virtual MediaDecoderOwner::NextFrameStatus GetNextFrameStatus()
michael@0:   {
michael@0:     return MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE;
michael@0:   }
michael@0: };
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: #endif // AUDIO_OFFLOAD_PLAYER_BASE_H_