105 lines
4.2 KiB
C++
105 lines
4.2 KiB
C++
/* //device/servers/AudioFlinger/AudioHardwareStub.h
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**
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** Copyright 2007, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#ifndef ANDROID_AUDIO_HARDWARE_STUB_H
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#define ANDROID_AUDIO_HARDWARE_STUB_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <hardware_legacy/AudioHardwareBase.h>
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namespace android {
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// ----------------------------------------------------------------------------
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class AudioStreamOutStub : public AudioStreamOut {
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public:
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virtual status_t set(int *pFormat, uint32_t *pChannels, uint32_t *pRate);
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virtual uint32_t sampleRate() const { return 44100; }
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virtual size_t bufferSize() const { return 4096; }
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virtual uint32_t channels() const { return AudioSystem::CHANNEL_OUT_STEREO; }
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virtual int format() const { return AudioSystem::PCM_16_BIT; }
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virtual uint32_t latency() const { return 0; }
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virtual status_t setVolume(float left, float right) { return NO_ERROR; }
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virtual ssize_t write(const void* buffer, size_t bytes);
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virtual status_t standby();
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virtual status_t dump(int fd, const Vector<String16>& args);
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virtual status_t setParameters(const String8& keyValuePairs) { return NO_ERROR;}
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virtual String8 getParameters(const String8& keys);
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};
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class AudioStreamInStub : public AudioStreamIn {
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public:
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virtual status_t set(int *pFormat, uint32_t *pChannels, uint32_t *pRate, AudioSystem::audio_in_acoustics acoustics);
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virtual uint32_t sampleRate() const { return 8000; }
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virtual size_t bufferSize() const { return 320; }
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virtual uint32_t channels() const { return AudioSystem::CHANNEL_IN_MONO; }
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virtual int format() const { return AudioSystem::PCM_16_BIT; }
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virtual status_t setGain(float gain) { return NO_ERROR; }
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virtual ssize_t read(void* buffer, ssize_t bytes);
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virtual status_t dump(int fd, const Vector<String16>& args);
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virtual status_t standby() { return NO_ERROR; }
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virtual status_t setParameters(const String8& keyValuePairs) { return NO_ERROR;}
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virtual String8 getParameters(const String8& keys);
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};
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class AudioHardwareStub : public AudioHardwareBase
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{
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public:
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AudioHardwareStub();
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virtual ~AudioHardwareStub();
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virtual status_t initCheck();
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virtual status_t setVoiceVolume(float volume);
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virtual status_t setMasterVolume(float volume);
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// mic mute
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virtual status_t setMicMute(bool state) { mMicMute = state; return NO_ERROR; }
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virtual status_t getMicMute(bool* state) { *state = mMicMute ; return NO_ERROR; }
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// create I/O streams
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virtual AudioStreamOut* openOutputStream(
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uint32_t devices,
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int *format=0,
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uint32_t *channels=0,
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uint32_t *sampleRate=0,
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status_t *status=0);
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virtual void closeOutputStream(AudioStreamOut* out);
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virtual AudioStreamIn* openInputStream(
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uint32_t devices,
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int *format,
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uint32_t *channels,
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uint32_t *sampleRate,
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status_t *status,
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AudioSystem::audio_in_acoustics acoustics);
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virtual void closeInputStream(AudioStreamIn* in);
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protected:
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virtual status_t dump(int fd, const Vector<String16>& args);
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bool mMicMute;
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private:
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status_t dumpInternals(int fd, const Vector<String16>& args);
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_AUDIO_HARDWARE_STUB_H
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