The Tor Browser: content/media/omx/AudioOffloadPlayerBase.h@44a2da4a2ab2

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

     1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* vim:set ts=2 sw=2 sts=2 et cindent: */

     3 /*

     4  * Copyright (c) 2014 The Linux Foundation. All rights reserved.

     5  * Copyright (C) 2009 The Android Open Source Project

     6  *

     7  * Licensed under the Apache License, Version 2.0 (the "License");

     8  * you may not use this file except in compliance with the License.

     9  * You may obtain a copy of the License at

    10  *

    11  *      http://www.apache.org/licenses/LICENSE-2.0

    12  *

    13  * Unless required by applicable law or agreed to in writing, software

    14  * distributed under the License is distributed on an "AS IS" BASIS,

    15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

    16  * See the License for the specific language governing permissions and

    17  * limitations under the License.

    18  */

    20 #ifndef AUDIO_OFFLOAD_PLAYER_BASE_H_

    21 #define AUDIO_OFFLOAD_PLAYER_BASE_H_

    23 #include "MediaDecoderOwner.h"

    24 #include "MediaOmxDecoder.h"

    26 namespace mozilla {

    28 class MediaOmxDecoder;

    30 /**

    31  * AudioOffloadPlayer interface class which has funtions used by MediaOmxDecoder

    32  * This is to reduce the dependency of AudioOffloadPlayer in MediaOmxDecoder

    33  */

    34 class AudioOffloadPlayerBase

    35 {

    36   typedef android::status_t status_t;

    37   typedef android::MediaSource MediaSource;

    39 public:

    40   virtual ~AudioOffloadPlayerBase() {};

    42   // Caller retains ownership of "aSource".

    43   virtual void SetSource(const android::sp<MediaSource> &aSource) {}

    45   // Start the source if it's not already started and open the AudioSink to

    46   // create an offloaded audio track

    47   virtual status_t Start(bool aSourceAlreadyStarted = false)

    48   {

    49     return android::NO_INIT;

    50   }

    52   virtual status_t ChangeState(MediaDecoder::PlayState aState)

    53   {

    54     return android::NO_INIT;

    55   }

    57   virtual void SetVolume(double aVolume) {}

    59   virtual double GetMediaTimeSecs() { return 0; }

    61   // To update progress bar when the element is visible

    62   virtual void SetElementVisibility(bool aIsVisible) {}

    64   // Update ready state based on current play state. Not checking data

    65   // availability since offloading is currently done only when whole compressed

    66   // data is available

    67   virtual MediaDecoderOwner::NextFrameStatus GetNextFrameStatus()

    68   {

    69     return MediaDecoderOwner::NEXT_FRAME_UNAVAILABLE;

    70   }

    71 };

    73 } // namespace mozilla

    75 #endif // AUDIO_OFFLOAD_PLAYER_BASE_H_

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