1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/dom/system/gonk/android_audio/IAudioTrack.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,89 @@
1.4 +/*
1.5 + * Copyright (C) 2007 The Android Open Source Project
1.6 + *
1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
1.8 + * you may not use this file except in compliance with the License.
1.9 + * You may obtain a copy of the License at
1.10 + *
1.11 + * http://www.apache.org/licenses/LICENSE-2.0
1.12 + *
1.13 + * Unless required by applicable law or agreed to in writing, software
1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
1.16 + * See the License for the specific language governing permissions and
1.17 + * limitations under the License.
1.18 + */
1.19 +
1.20 +#ifndef ANDROID_IAUDIOTRACK_H
1.21 +#define ANDROID_IAUDIOTRACK_H
1.22 +
1.23 +#include <stdint.h>
1.24 +#include <sys/types.h>
1.25 +
1.26 +#include <utils/RefBase.h>
1.27 +#include <utils/Errors.h>
1.28 +#include <binder/IInterface.h>
1.29 +#include <binder/IMemory.h>
1.30 +
1.31 +
1.32 +namespace android {
1.33 +
1.34 +// ----------------------------------------------------------------------------
1.35 +
1.36 +class IAudioTrack : public IInterface
1.37 +{
1.38 +public:
1.39 + DECLARE_META_INTERFACE(AudioTrack);
1.40 +
1.41 + /* After it's created the track is not active. Call start() to
1.42 + * make it active. If set, the callback will start being called.
1.43 + */
1.44 + virtual status_t start() = 0;
1.45 +
1.46 + /* Stop a track. If set, the callback will cease being called and
1.47 + * obtainBuffer will return an error. Buffers that are already released
1.48 + * will be processed, unless flush() is called.
1.49 + */
1.50 + virtual void stop() = 0;
1.51 +
1.52 + /* flush a stopped track. All pending buffers are discarded.
1.53 + * This function has no effect if the track is not stoped.
1.54 + */
1.55 + virtual void flush() = 0;
1.56 +
1.57 + /* mute or unmutes this track.
1.58 + * While mutted, the callback, if set, is still called.
1.59 + */
1.60 + virtual void mute(bool) = 0;
1.61 +
1.62 + /* Pause a track. If set, the callback will cease being called and
1.63 + * obtainBuffer will return an error. Buffers that are already released
1.64 + * will be processed, unless flush() is called.
1.65 + */
1.66 + virtual void pause() = 0;
1.67 +
1.68 + /* Attach track auxiliary output to specified effect. Use effectId = 0
1.69 + * to detach track from effect.
1.70 + */
1.71 + virtual status_t attachAuxEffect(int effectId) = 0;
1.72 +
1.73 + /* get this tracks control block */
1.74 + virtual sp<IMemory> getCblk() const = 0;
1.75 +};
1.76 +
1.77 +// ----------------------------------------------------------------------------
1.78 +
1.79 +class BnAudioTrack : public BnInterface<IAudioTrack>
1.80 +{
1.81 +public:
1.82 + virtual status_t onTransact( uint32_t code,
1.83 + const Parcel& data,
1.84 + Parcel* reply,
1.85 + uint32_t flags = 0);
1.86 +};
1.87 +
1.88 +// ----------------------------------------------------------------------------
1.89 +
1.90 +}; // namespace android
1.91 +
1.92 +#endif // ANDROID_IAUDIOTRACK_H
