/* //device/extlibs/pv/android/IAudioflinger.cpp ** ** Copyright 2007, The Android Open Source Project ** ** Licensed under the Apache License, Version 2.0 (the "License"); ** you may not use this file except in compliance with the License. ** You may obtain a copy of the License at ** ** http://www.apache.org/licenses/LICENSE-2.0 ** ** Unless required by applicable law or agreed to in writing, software ** distributed under the License is distributed on an "AS IS" BASIS, ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. ** See the License for the specific language governing permissions and ** limitations under the License. */ #define LOG_TAG "IAudioFlinger" //#define LOG_NDEBUG 0 #include <utils/Log.h> #include <stdint.h> #include <sys/types.h> #include <binder/Parcel.h> #include <media/IAudioFlinger.h> namespace android { enum { CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION, OPEN_RECORD, SAMPLE_RATE, CHANNEL_COUNT, FORMAT, FRAME_COUNT, LATENCY, SET_MASTER_VOLUME, SET_MASTER_MUTE, MASTER_VOLUME, MASTER_MUTE, SET_STREAM_VOLUME, SET_STREAM_MUTE, STREAM_VOLUME, STREAM_MUTE, SET_MODE, SET_MIC_MUTE, GET_MIC_MUTE, IS_MUSIC_ACTIVE, SET_PARAMETERS, GET_PARAMETERS, REGISTER_CLIENT, GET_INPUTBUFFERSIZE, OPEN_OUTPUT, OPEN_DUPLICATE_OUTPUT, CLOSE_OUTPUT, SUSPEND_OUTPUT, RESTORE_OUTPUT, OPEN_INPUT, CLOSE_INPUT, SET_STREAM_OUTPUT }; class BpAudioFlinger : public BpInterface<IAudioFlinger> { public: BpAudioFlinger(const sp<IBinder>& impl) : BpInterface<IAudioFlinger>(impl) { } virtual sp<IAudioTrack> createTrack( pid_t pid, int streamType, uint32_t sampleRate, int format, int channelCount, int frameCount, uint32_t flags, const sp<IMemory>& sharedBuffer, int output, status_t *status) { Parcel data, reply; sp<IAudioTrack> track; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(pid); data.writeInt32(streamType); data.writeInt32(sampleRate); data.writeInt32(format); data.writeInt32(channelCount); data.writeInt32(frameCount); data.writeInt32(flags); data.writeStrongBinder(sharedBuffer->asBinder()); data.writeInt32(output); status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply); if (lStatus != NO_ERROR) { LOGE("createTrack error: %s", strerror(-lStatus)); } else { lStatus = reply.readInt32(); track = interface_cast<IAudioTrack>(reply.readStrongBinder()); } if (status) { *status = lStatus; } return track; } virtual sp<IAudioRecord> openRecord( pid_t pid, int input, uint32_t sampleRate, int format, int channelCount, int frameCount, uint32_t flags, status_t *status) { Parcel data, reply; sp<IAudioRecord> record; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(pid); data.writeInt32(input); data.writeInt32(sampleRate); data.writeInt32(format); data.writeInt32(channelCount); data.writeInt32(frameCount); data.writeInt32(flags); status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply); if (lStatus != NO_ERROR) { LOGE("openRecord error: %s", strerror(-lStatus)); } else { lStatus = reply.readInt32(); record = interface_cast<IAudioRecord>(reply.readStrongBinder()); } if (status) { *status = lStatus; } return record; } virtual uint32_t sampleRate(int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(SAMPLE_RATE, data, &reply); return reply.readInt32(); } virtual int channelCount(int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(CHANNEL_COUNT, data, &reply); return reply.readInt32(); } virtual int format(int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(FORMAT, data, &reply); return reply.readInt32(); } virtual size_t frameCount(int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(FRAME_COUNT, data, &reply); return reply.readInt32(); } virtual uint32_t latency(int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(LATENCY, data, &reply); return reply.readInt32(); } virtual status_t setMasterVolume(float value) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeFloat(value); remote()->transact(SET_MASTER_VOLUME, data, &reply); return reply.readInt32(); } virtual status_t setMasterMute(bool muted) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(muted); remote()->transact(SET_MASTER_MUTE, data, &reply); return reply.readInt32(); } virtual float masterVolume() const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); remote()->transact(MASTER_VOLUME, data, &reply); return reply.readFloat(); } virtual bool masterMute() const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); remote()->transact(MASTER_MUTE, data, &reply); return reply.readInt32(); } virtual status_t setStreamVolume(int stream, float value, int output) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(stream); data.writeFloat(value); data.writeInt32(output); remote()->transact(SET_STREAM_VOLUME, data, &reply); return reply.readInt32(); } virtual status_t setStreamMute(int stream, bool muted) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(stream); data.writeInt32(muted); remote()->transact(SET_STREAM_MUTE, data, &reply); return reply.readInt32(); } virtual float streamVolume(int stream, int output) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(stream); data.writeInt32(output); remote()->transact(STREAM_VOLUME, data, &reply); return reply.readFloat(); } virtual bool streamMute(int stream) const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(stream); remote()->transact(STREAM_MUTE, data, &reply); return reply.readInt32(); } virtual status_t setMode(int mode) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(mode); remote()->transact(SET_MODE, data, &reply); return reply.readInt32(); } virtual status_t setMicMute(bool state) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(state); remote()->transact(SET_MIC_MUTE, data, &reply); return reply.readInt32(); } virtual bool getMicMute() const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); remote()->transact(GET_MIC_MUTE, data, &reply); return reply.readInt32(); } virtual bool isMusicActive() const { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); remote()->transact(IS_MUSIC_ACTIVE, data, &reply); return reply.readInt32(); } virtual status_t setParameters(int ioHandle, const String8& keyValuePairs) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(ioHandle); data.writeString8(keyValuePairs); remote()->transact(SET_PARAMETERS, data, &reply); return reply.readInt32(); } virtual String8 getParameters(int ioHandle, const String8& keys) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(ioHandle); data.writeString8(keys); remote()->transact(GET_PARAMETERS, data, &reply); return reply.readString8(); } virtual void registerClient(const sp<IAudioFlingerClient>& client) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeStrongBinder(client->asBinder()); remote()->transact(REGISTER_CLIENT, data, &reply); } virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(sampleRate); data.writeInt32(format); data.writeInt32(channelCount); remote()->transact(GET_INPUTBUFFERSIZE, data, &reply); return reply.readInt32(); } virtual int openOutput(uint32_t *pDevices, uint32_t *pSamplingRate, uint32_t *pFormat, uint32_t *pChannels, uint32_t *pLatencyMs, uint32_t flags) { Parcel data, reply; uint32_t devices = pDevices ? *pDevices : 0; uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; uint32_t format = pFormat ? *pFormat : 0; uint32_t channels = pChannels ? *pChannels : 0; uint32_t latency = pLatencyMs ? *pLatencyMs : 0; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(devices); data.writeInt32(samplingRate); data.writeInt32(format); data.writeInt32(channels); data.writeInt32(latency); data.writeInt32(flags); remote()->transact(OPEN_OUTPUT, data, &reply); int output = reply.readInt32(); LOGV("openOutput() returned output, %p", output); devices = reply.readInt32(); if (pDevices) *pDevices = devices; samplingRate = reply.readInt32(); if (pSamplingRate) *pSamplingRate = samplingRate; format = reply.readInt32(); if (pFormat) *pFormat = format; channels = reply.readInt32(); if (pChannels) *pChannels = channels; latency = reply.readInt32(); if (pLatencyMs) *pLatencyMs = latency; return output; } virtual int openDuplicateOutput(int output1, int output2) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output1); data.writeInt32(output2); remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply); return reply.readInt32(); } virtual status_t closeOutput(int output) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(CLOSE_OUTPUT, data, &reply); return reply.readInt32(); } virtual status_t suspendOutput(int output) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(SUSPEND_OUTPUT, data, &reply); return reply.readInt32(); } virtual status_t restoreOutput(int output) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(output); remote()->transact(RESTORE_OUTPUT, data, &reply); return reply.readInt32(); } virtual int openInput(uint32_t *pDevices, uint32_t *pSamplingRate, uint32_t *pFormat, uint32_t *pChannels, uint32_t acoustics) { Parcel data, reply; uint32_t devices = pDevices ? *pDevices : 0; uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0; uint32_t format = pFormat ? *pFormat : 0; uint32_t channels = pChannels ? *pChannels : 0; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(devices); data.writeInt32(samplingRate); data.writeInt32(format); data.writeInt32(channels); data.writeInt32(acoustics); remote()->transact(OPEN_INPUT, data, &reply); int input = reply.readInt32(); devices = reply.readInt32(); if (pDevices) *pDevices = devices; samplingRate = reply.readInt32(); if (pSamplingRate) *pSamplingRate = samplingRate; format = reply.readInt32(); if (pFormat) *pFormat = format; channels = reply.readInt32(); if (pChannels) *pChannels = channels; return input; } virtual status_t closeInput(int input) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(input); remote()->transact(CLOSE_INPUT, data, &reply); return reply.readInt32(); } virtual status_t setStreamOutput(uint32_t stream, int output) { Parcel data, reply; data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor()); data.writeInt32(stream); data.writeInt32(output); remote()->transact(SET_STREAM_OUTPUT, data, &reply); return reply.readInt32(); } }; IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger"); // ---------------------------------------------------------------------- status_t BnAudioFlinger::onTransact( uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { switch(code) { case CREATE_TRACK: { CHECK_INTERFACE(IAudioFlinger, data, reply); pid_t pid = data.readInt32(); int streamType = data.readInt32(); uint32_t sampleRate = data.readInt32(); int format = data.readInt32(); int channelCount = data.readInt32(); size_t bufferCount = data.readInt32(); uint32_t flags = data.readInt32(); sp<IMemory> buffer = interface_cast<IMemory>(data.readStrongBinder()); int output = data.readInt32(); status_t status; sp<IAudioTrack> track = createTrack(pid, streamType, sampleRate, format, channelCount, bufferCount, flags, buffer, output, &status); reply->writeInt32(status); reply->writeStrongBinder(track->asBinder()); return NO_ERROR; } break; case OPEN_RECORD: { CHECK_INTERFACE(IAudioFlinger, data, reply); pid_t pid = data.readInt32(); int input = data.readInt32(); uint32_t sampleRate = data.readInt32(); int format = data.readInt32(); int channelCount = data.readInt32(); size_t bufferCount = data.readInt32(); uint32_t flags = data.readInt32(); status_t status; sp<IAudioRecord> record = openRecord(pid, input, sampleRate, format, channelCount, bufferCount, flags, &status); reply->writeInt32(status); reply->writeStrongBinder(record->asBinder()); return NO_ERROR; } break; case SAMPLE_RATE: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( sampleRate(data.readInt32()) ); return NO_ERROR; } break; case CHANNEL_COUNT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( channelCount(data.readInt32()) ); return NO_ERROR; } break; case FORMAT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( format(data.readInt32()) ); return NO_ERROR; } break; case FRAME_COUNT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( frameCount(data.readInt32()) ); return NO_ERROR; } break; case LATENCY: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( latency(data.readInt32()) ); return NO_ERROR; } break; case SET_MASTER_VOLUME: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( setMasterVolume(data.readFloat()) ); return NO_ERROR; } break; case SET_MASTER_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( setMasterMute(data.readInt32()) ); return NO_ERROR; } break; case MASTER_VOLUME: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeFloat( masterVolume() ); return NO_ERROR; } break; case MASTER_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( masterMute() ); return NO_ERROR; } break; case SET_STREAM_VOLUME: { CHECK_INTERFACE(IAudioFlinger, data, reply); int stream = data.readInt32(); float volume = data.readFloat(); int output = data.readInt32(); reply->writeInt32( setStreamVolume(stream, volume, output) ); return NO_ERROR; } break; case SET_STREAM_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); int stream = data.readInt32(); reply->writeInt32( setStreamMute(stream, data.readInt32()) ); return NO_ERROR; } break; case STREAM_VOLUME: { CHECK_INTERFACE(IAudioFlinger, data, reply); int stream = data.readInt32(); int output = data.readInt32(); reply->writeFloat( streamVolume(stream, output) ); return NO_ERROR; } break; case STREAM_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); int stream = data.readInt32(); reply->writeInt32( streamMute(stream) ); return NO_ERROR; } break; case SET_MODE: { CHECK_INTERFACE(IAudioFlinger, data, reply); int mode = data.readInt32(); reply->writeInt32( setMode(mode) ); return NO_ERROR; } break; case SET_MIC_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); int state = data.readInt32(); reply->writeInt32( setMicMute(state) ); return NO_ERROR; } break; case GET_MIC_MUTE: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( getMicMute() ); return NO_ERROR; } break; case IS_MUSIC_ACTIVE: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32( isMusicActive() ); return NO_ERROR; } break; case SET_PARAMETERS: { CHECK_INTERFACE(IAudioFlinger, data, reply); int ioHandle = data.readInt32(); String8 keyValuePairs(data.readString8()); reply->writeInt32(setParameters(ioHandle, keyValuePairs)); return NO_ERROR; } break; case GET_PARAMETERS: { CHECK_INTERFACE(IAudioFlinger, data, reply); int ioHandle = data.readInt32(); String8 keys(data.readString8()); reply->writeString8(getParameters(ioHandle, keys)); return NO_ERROR; } break; case REGISTER_CLIENT: { CHECK_INTERFACE(IAudioFlinger, data, reply); sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>(data.readStrongBinder()); registerClient(client); return NO_ERROR; } break; case GET_INPUTBUFFERSIZE: { CHECK_INTERFACE(IAudioFlinger, data, reply); uint32_t sampleRate = data.readInt32(); int format = data.readInt32(); int channelCount = data.readInt32(); reply->writeInt32( getInputBufferSize(sampleRate, format, channelCount) ); return NO_ERROR; } break; case OPEN_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); uint32_t devices = data.readInt32(); uint32_t samplingRate = data.readInt32(); uint32_t format = data.readInt32(); uint32_t channels = data.readInt32(); uint32_t latency = data.readInt32(); uint32_t flags = data.readInt32(); int output = openOutput(&devices, &samplingRate, &format, &channels, &latency, flags); LOGV("OPEN_OUTPUT output, %p", output); reply->writeInt32(output); reply->writeInt32(devices); reply->writeInt32(samplingRate); reply->writeInt32(format); reply->writeInt32(channels); reply->writeInt32(latency); return NO_ERROR; } break; case OPEN_DUPLICATE_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); int output1 = data.readInt32(); int output2 = data.readInt32(); reply->writeInt32(openDuplicateOutput(output1, output2)); return NO_ERROR; } break; case CLOSE_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32(closeOutput(data.readInt32())); return NO_ERROR; } break; case SUSPEND_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32(suspendOutput(data.readInt32())); return NO_ERROR; } break; case RESTORE_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32(restoreOutput(data.readInt32())); return NO_ERROR; } break; case OPEN_INPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); uint32_t devices = data.readInt32(); uint32_t samplingRate = data.readInt32(); uint32_t format = data.readInt32(); uint32_t channels = data.readInt32(); uint32_t acoutics = data.readInt32(); int input = openInput(&devices, &samplingRate, &format, &channels, acoutics); reply->writeInt32(input); reply->writeInt32(devices); reply->writeInt32(samplingRate); reply->writeInt32(format); reply->writeInt32(channels); return NO_ERROR; } break; case CLOSE_INPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); reply->writeInt32(closeInput(data.readInt32())); return NO_ERROR; } break; case SET_STREAM_OUTPUT: { CHECK_INTERFACE(IAudioFlinger, data, reply); uint32_t stream = data.readInt32(); int output = data.readInt32(); reply->writeInt32(setStreamOutput(stream, output)); return NO_ERROR; } break; default: return BBinder::onTransact(code, data, reply, flags); } } // ---------------------------------------------------------------------------- }; // namespace android