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/* //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,
SET_VOICE_VOLUME
};
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();
}
virtual status_t setVoiceVolume(float volume)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeFloat(volume);
remote()->transact(SET_VOICE_VOLUME, 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;
case SET_VOICE_VOLUME: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
float volume = data.readFloat();
reply->writeInt32( setVoiceVolume(volume) );
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android