1 /* //device/servers/AudioFlinger/AudioHardwareStub.h
3 ** Copyright 2007, The Android Open Source Project
5 ** Licensed under the Apache License, Version 2.0 (the "License");
6 ** you may not use this file except in compliance with the License.
7 ** You may obtain a copy of the License at
9 ** http://www.apache.org/licenses/LICENSE-2.0
11 ** Unless required by applicable law or agreed to in writing, software
12 ** distributed under the License is distributed on an "AS IS" BASIS,
13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 ** See the License for the specific language governing permissions and
15 ** limitations under the License.
18 #ifndef ANDROID_AUDIO_HARDWARE_STUB_H
19 #define ANDROID_AUDIO_HARDWARE_STUB_H
22 #include <sys/types.h>
24 #include <hardware_legacy/AudioHardwareBase.h>
26 namespace android_audio_legacy {
28 // ----------------------------------------------------------------------------
30 class AudioStreamOutStub : public AudioStreamOut {
32 virtual status_t set(int *pFormat, uint32_t *pChannels, uint32_t *pRate);
33 virtual uint32_t sampleRate() const { return 44100; }
34 virtual size_t bufferSize() const { return 4096; }
35 virtual uint32_t channels() const { return AudioSystem::CHANNEL_OUT_STEREO; }
36 virtual int format() const { return AudioSystem::PCM_16_BIT; }
37 virtual uint32_t latency() const { return 0; }
38 virtual status_t setVolume(float left, float right) { return NO_ERROR; }
39 virtual ssize_t write(const void* buffer, size_t bytes);
40 virtual status_t standby();
41 virtual status_t dump(int fd, const Vector<String16>& args);
42 virtual status_t setParameters(const String8& keyValuePairs) { return NO_ERROR;}
43 virtual String8 getParameters(const String8& keys);
44 virtual status_t getRenderPosition(uint32_t *dspFrames);
47 class AudioStreamInStub : public AudioStreamIn {
49 virtual status_t set(int *pFormat, uint32_t *pChannels, uint32_t *pRate, AudioSystem::audio_in_acoustics acoustics);
50 virtual uint32_t sampleRate() const { return 8000; }
51 virtual size_t bufferSize() const { return 320; }
52 virtual uint32_t channels() const { return AudioSystem::CHANNEL_IN_MONO; }
53 virtual int format() const { return AudioSystem::PCM_16_BIT; }
54 virtual status_t setGain(float gain) { return NO_ERROR; }
55 virtual ssize_t read(void* buffer, ssize_t bytes);
56 virtual status_t dump(int fd, const Vector<String16>& args);
57 virtual status_t standby() { return NO_ERROR; }
58 virtual status_t setParameters(const String8& keyValuePairs) { return NO_ERROR;}
59 virtual String8 getParameters(const String8& keys);
60 virtual unsigned int getInputFramesLost() const { return 0; }
61 virtual status_t addAudioEffect(effect_handle_t effect) { return NO_ERROR; }
62 virtual status_t removeAudioEffect(effect_handle_t effect) { return NO_ERROR; }
65 class AudioHardwareStub : public AudioHardwareBase
69 virtual ~AudioHardwareStub();
70 virtual status_t initCheck();
71 virtual status_t setVoiceVolume(float volume);
72 virtual status_t setMasterVolume(float volume);
75 virtual status_t setMicMute(bool state) { mMicMute = state; return NO_ERROR; }
76 virtual status_t getMicMute(bool* state) { *state = mMicMute ; return NO_ERROR; }
79 virtual AudioStreamOut* openOutputStream(
83 uint32_t *sampleRate=0,
85 virtual void closeOutputStream(AudioStreamOut* out);
87 virtual AudioStreamIn* openInputStream(
93 AudioSystem::audio_in_acoustics acoustics);
94 virtual void closeInputStream(AudioStreamIn* in);
97 virtual status_t dump(int fd, const Vector<String16>& args);
101 status_t dumpInternals(int fd, const Vector<String16>& args);
104 // ----------------------------------------------------------------------------
106 }; // namespace android
108 #endif // ANDROID_AUDIO_HARDWARE_STUB_H