blob: d7ca4250830dc424d9f99012c4d7a2a458e81de5 [file] [log] [blame]
/*
**
** 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,
RESERVED, // obsolete, was 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,
SET_PARAMETERS,
GET_PARAMETERS,
REGISTER_CLIENT,
GET_INPUTBUFFERSIZE,
OPEN_OUTPUT,
OPEN_DUPLICATE_OUTPUT,
CLOSE_OUTPUT,
SUSPEND_OUTPUT,
RESTORE_OUTPUT,
OPEN_INPUT,
CLOSE_INPUT,
INVALIDATE_STREAM,
SET_VOICE_VOLUME,
GET_RENDER_POSITION,
GET_INPUT_FRAMES_LOST,
NEW_AUDIO_SESSION_ID,
ACQUIRE_AUDIO_SESSION_ID,
RELEASE_AUDIO_SESSION_ID,
QUERY_NUM_EFFECTS,
QUERY_EFFECT,
GET_EFFECT_DESCRIPTOR,
CREATE_EFFECT,
MOVE_EFFECTS,
LOAD_HW_MODULE,
GET_PRIMARY_OUTPUT_SAMPLING_RATE,
GET_PRIMARY_OUTPUT_FRAME_COUNT,
SET_LOW_RAM_DEVICE,
LIST_AUDIO_PORTS,
GET_AUDIO_PORT,
CREATE_AUDIO_PATCH,
RELEASE_AUDIO_PATCH,
LIST_AUDIO_PATCHES,
SET_AUDIO_PORT_CONFIG,
GET_AUDIO_HW_SYNC
};
#define MAX_ITEMS_PER_LIST 1024
class BpAudioFlinger : public BpInterface<IAudioFlinger>
{
public:
BpAudioFlinger(const sp<IBinder>& impl)
: BpInterface<IAudioFlinger>(impl)
{
}
virtual sp<IAudioTrack> createTrack(
audio_stream_type_t streamType,
uint32_t sampleRate,
audio_format_t format,
audio_channel_mask_t channelMask,
size_t *pFrameCount,
track_flags_t *flags,
const sp<IMemory>& sharedBuffer,
audio_io_handle_t output,
pid_t tid,
int *sessionId,
int clientUid,
status_t *status)
{
Parcel data, reply;
sp<IAudioTrack> track;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) streamType);
data.writeInt32(sampleRate);
data.writeInt32(format);
data.writeInt32(channelMask);
size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
data.writeInt64(frameCount);
track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT;
data.writeInt32(lFlags);
// haveSharedBuffer
if (sharedBuffer != 0) {
data.writeInt32(true);
data.writeStrongBinder(sharedBuffer->asBinder());
} else {
data.writeInt32(false);
}
data.writeInt32((int32_t) output);
data.writeInt32((int32_t) tid);
int lSessionId = AUDIO_SESSION_ALLOCATE;
if (sessionId != NULL) {
lSessionId = *sessionId;
}
data.writeInt32(lSessionId);
data.writeInt32(clientUid);
status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply);
if (lStatus != NO_ERROR) {
ALOGE("createTrack error: %s", strerror(-lStatus));
} else {
frameCount = reply.readInt64();
if (pFrameCount != NULL) {
*pFrameCount = frameCount;
}
lFlags = reply.readInt32();
if (flags != NULL) {
*flags = lFlags;
}
lSessionId = reply.readInt32();
if (sessionId != NULL) {
*sessionId = lSessionId;
}
lStatus = reply.readInt32();
track = interface_cast<IAudioTrack>(reply.readStrongBinder());
if (lStatus == NO_ERROR) {
if (track == 0) {
ALOGE("createTrack should have returned an IAudioTrack");
lStatus = UNKNOWN_ERROR;
}
} else {
if (track != 0) {
ALOGE("createTrack returned an IAudioTrack but with status %d", lStatus);
track.clear();
}
}
}
if (status != NULL) {
*status = lStatus;
}
return track;
}
virtual sp<IAudioRecord> openRecord(
audio_io_handle_t input,
uint32_t sampleRate,
audio_format_t format,
audio_channel_mask_t channelMask,
size_t *pFrameCount,
track_flags_t *flags,
pid_t tid,
int *sessionId,
size_t *notificationFrames,
sp<IMemory>& cblk,
sp<IMemory>& buffers,
status_t *status)
{
Parcel data, reply;
sp<IAudioRecord> record;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) input);
data.writeInt32(sampleRate);
data.writeInt32(format);
data.writeInt32(channelMask);
size_t frameCount = pFrameCount != NULL ? *pFrameCount : 0;
data.writeInt64(frameCount);
track_flags_t lFlags = flags != NULL ? *flags : (track_flags_t) TRACK_DEFAULT;
data.writeInt32(lFlags);
data.writeInt32((int32_t) tid);
int lSessionId = AUDIO_SESSION_ALLOCATE;
if (sessionId != NULL) {
lSessionId = *sessionId;
}
data.writeInt32(lSessionId);
data.writeInt64(notificationFrames != NULL ? *notificationFrames : 0);
cblk.clear();
buffers.clear();
status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply);
if (lStatus != NO_ERROR) {
ALOGE("openRecord error: %s", strerror(-lStatus));
} else {
frameCount = reply.readInt64();
if (pFrameCount != NULL) {
*pFrameCount = frameCount;
}
lFlags = reply.readInt32();
if (flags != NULL) {
*flags = lFlags;
}
lSessionId = reply.readInt32();
if (sessionId != NULL) {
*sessionId = lSessionId;
}
size_t lNotificationFrames = (size_t) reply.readInt64();
if (notificationFrames != NULL) {
*notificationFrames = lNotificationFrames;
}
lStatus = reply.readInt32();
record = interface_cast<IAudioRecord>(reply.readStrongBinder());
cblk = interface_cast<IMemory>(reply.readStrongBinder());
if (cblk != 0 && cblk->pointer() == NULL) {
cblk.clear();
}
buffers = interface_cast<IMemory>(reply.readStrongBinder());
if (buffers != 0 && buffers->pointer() == NULL) {
buffers.clear();
}
if (lStatus == NO_ERROR) {
if (record == 0) {
ALOGE("openRecord should have returned an IAudioRecord");
lStatus = UNKNOWN_ERROR;
} else if (cblk == 0) {
ALOGE("openRecord should have returned a cblk");
lStatus = NO_MEMORY;
}
// buffers is permitted to be 0
} else {
if (record != 0 || cblk != 0 || buffers != 0) {
ALOGE("openRecord returned an IAudioRecord, cblk, "
"or buffers but with status %d", lStatus);
}
}
if (lStatus != NO_ERROR) {
record.clear();
cblk.clear();
buffers.clear();
}
}
if (status != NULL) {
*status = lStatus;
}
return record;
}
virtual uint32_t sampleRate(audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(SAMPLE_RATE, data, &reply);
return reply.readInt32();
}
virtual audio_format_t format(audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(FORMAT, data, &reply);
return (audio_format_t) reply.readInt32();
}
virtual size_t frameCount(audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(FRAME_COUNT, data, &reply);
return reply.readInt64();
}
virtual uint32_t latency(audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) 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(audio_stream_type_t stream, float value,
audio_io_handle_t output)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
data.writeFloat(value);
data.writeInt32((int32_t) output);
remote()->transact(SET_STREAM_VOLUME, data, &reply);
return reply.readInt32();
}
virtual status_t setStreamMute(audio_stream_type_t stream, bool muted)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
data.writeInt32(muted);
remote()->transact(SET_STREAM_MUTE, data, &reply);
return reply.readInt32();
}
virtual float streamVolume(audio_stream_type_t stream, audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
data.writeInt32((int32_t) output);
remote()->transact(STREAM_VOLUME, data, &reply);
return reply.readFloat();
}
virtual bool streamMute(audio_stream_type_t stream) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
remote()->transact(STREAM_MUTE, data, &reply);
return reply.readInt32();
}
virtual status_t setMode(audio_mode_t 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 status_t setParameters(audio_io_handle_t ioHandle, const String8& keyValuePairs)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) ioHandle);
data.writeString8(keyValuePairs);
remote()->transact(SET_PARAMETERS, data, &reply);
return reply.readInt32();
}
virtual String8 getParameters(audio_io_handle_t ioHandle, const String8& keys) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) 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, audio_format_t format,
audio_channel_mask_t channelMask) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(sampleRate);
data.writeInt32(format);
data.writeInt32(channelMask);
remote()->transact(GET_INPUTBUFFERSIZE, data, &reply);
return reply.readInt64();
}
virtual status_t openOutput(audio_module_handle_t module,
audio_io_handle_t *output,
audio_config_t *config,
audio_devices_t *devices,
const String8& address,
uint32_t *latencyMs,
audio_output_flags_t flags)
{
if (output == NULL || config == NULL || devices == NULL || latencyMs == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(module);
data.write(config, sizeof(audio_config_t));
data.writeInt32(*devices);
data.writeString8(address);
data.writeInt32((int32_t) flags);
status_t status = remote()->transact(OPEN_OUTPUT, data, &reply);
if (status != NO_ERROR) {
*output = AUDIO_IO_HANDLE_NONE;
return status;
}
status = (status_t)reply.readInt32();
if (status != NO_ERROR) {
*output = AUDIO_IO_HANDLE_NONE;
return status;
}
*output = (audio_io_handle_t)reply.readInt32();
ALOGV("openOutput() returned output, %d", *output);
reply.read(config, sizeof(audio_config_t));
*devices = (audio_devices_t)reply.readInt32();
*latencyMs = reply.readInt32();
return NO_ERROR;
}
virtual audio_io_handle_t openDuplicateOutput(audio_io_handle_t output1,
audio_io_handle_t output2)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output1);
data.writeInt32((int32_t) output2);
remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply);
return (audio_io_handle_t) reply.readInt32();
}
virtual status_t closeOutput(audio_io_handle_t output)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(CLOSE_OUTPUT, data, &reply);
return reply.readInt32();
}
virtual status_t suspendOutput(audio_io_handle_t output)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(SUSPEND_OUTPUT, data, &reply);
return reply.readInt32();
}
virtual status_t restoreOutput(audio_io_handle_t output)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(RESTORE_OUTPUT, data, &reply);
return reply.readInt32();
}
virtual status_t openInput(audio_module_handle_t module,
audio_io_handle_t *input,
audio_config_t *config,
audio_devices_t *device,
const String8& address,
audio_source_t source,
audio_input_flags_t flags)
{
if (input == NULL || config == NULL || device == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(module);
data.writeInt32(*input);
data.write(config, sizeof(audio_config_t));
data.writeInt32(*device);
data.writeString8(address);
data.writeInt32(source);
data.writeInt32(flags);
status_t status = remote()->transact(OPEN_INPUT, data, &reply);
if (status != NO_ERROR) {
*input = AUDIO_IO_HANDLE_NONE;
return status;
}
status = (status_t)reply.readInt32();
if (status != NO_ERROR) {
*input = AUDIO_IO_HANDLE_NONE;
return status;
}
*input = (audio_io_handle_t)reply.readInt32();
reply.read(config, sizeof(audio_config_t));
*device = (audio_devices_t)reply.readInt32();
return NO_ERROR;
}
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 invalidateStream(audio_stream_type_t stream)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) stream);
remote()->transact(INVALIDATE_STREAM, 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();
}
virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames,
audio_io_handle_t output) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) output);
remote()->transact(GET_RENDER_POSITION, data, &reply);
status_t status = reply.readInt32();
if (status == NO_ERROR) {
uint32_t tmp = reply.readInt32();
if (halFrames != NULL) {
*halFrames = tmp;
}
tmp = reply.readInt32();
if (dspFrames != NULL) {
*dspFrames = tmp;
}
}
return status;
}
virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int32_t) ioHandle);
status_t status = remote()->transact(GET_INPUT_FRAMES_LOST, data, &reply);
if (status != NO_ERROR) {
return 0;
}
return (uint32_t) reply.readInt32();
}
virtual audio_unique_id_t newAudioUniqueId()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
status_t status = remote()->transact(NEW_AUDIO_SESSION_ID, data, &reply);
audio_unique_id_t id = AUDIO_SESSION_ALLOCATE;
if (status == NO_ERROR) {
id = reply.readInt32();
}
return id;
}
virtual void acquireAudioSessionId(int audioSession, int pid)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(audioSession);
data.writeInt32(pid);
remote()->transact(ACQUIRE_AUDIO_SESSION_ID, data, &reply);
}
virtual void releaseAudioSessionId(int audioSession, int pid)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(audioSession);
data.writeInt32(pid);
remote()->transact(RELEASE_AUDIO_SESSION_ID, data, &reply);
}
virtual status_t queryNumberEffects(uint32_t *numEffects) const
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
status_t status = remote()->transact(QUERY_NUM_EFFECTS, data, &reply);
if (status != NO_ERROR) {
return status;
}
status = reply.readInt32();
if (status != NO_ERROR) {
return status;
}
if (numEffects != NULL) {
*numEffects = (uint32_t)reply.readInt32();
}
return NO_ERROR;
}
virtual status_t queryEffect(uint32_t index, effect_descriptor_t *pDescriptor) const
{
if (pDescriptor == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(index);
status_t status = remote()->transact(QUERY_EFFECT, data, &reply);
if (status != NO_ERROR) {
return status;
}
status = reply.readInt32();
if (status != NO_ERROR) {
return status;
}
reply.read(pDescriptor, sizeof(effect_descriptor_t));
return NO_ERROR;
}
virtual status_t getEffectDescriptor(const effect_uuid_t *pUuid,
effect_descriptor_t *pDescriptor) const
{
if (pUuid == NULL || pDescriptor == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(pUuid, sizeof(effect_uuid_t));
status_t status = remote()->transact(GET_EFFECT_DESCRIPTOR, data, &reply);
if (status != NO_ERROR) {
return status;
}
status = reply.readInt32();
if (status != NO_ERROR) {
return status;
}
reply.read(pDescriptor, sizeof(effect_descriptor_t));
return NO_ERROR;
}
virtual sp<IEffect> createEffect(
effect_descriptor_t *pDesc,
const sp<IEffectClient>& client,
int32_t priority,
audio_io_handle_t output,
int sessionId,
status_t *status,
int *id,
int *enabled)
{
Parcel data, reply;
sp<IEffect> effect;
if (pDesc == NULL) {
return effect;
if (status != NULL) {
*status = BAD_VALUE;
}
}
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(pDesc, sizeof(effect_descriptor_t));
data.writeStrongBinder(client->asBinder());
data.writeInt32(priority);
data.writeInt32((int32_t) output);
data.writeInt32(sessionId);
status_t lStatus = remote()->transact(CREATE_EFFECT, data, &reply);
if (lStatus != NO_ERROR) {
ALOGE("createEffect error: %s", strerror(-lStatus));
} else {
lStatus = reply.readInt32();
int tmp = reply.readInt32();
if (id != NULL) {
*id = tmp;
}
tmp = reply.readInt32();
if (enabled != NULL) {
*enabled = tmp;
}
effect = interface_cast<IEffect>(reply.readStrongBinder());
reply.read(pDesc, sizeof(effect_descriptor_t));
}
if (status != NULL) {
*status = lStatus;
}
return effect;
}
virtual status_t moveEffects(int session, audio_io_handle_t srcOutput,
audio_io_handle_t dstOutput)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(session);
data.writeInt32((int32_t) srcOutput);
data.writeInt32((int32_t) dstOutput);
remote()->transact(MOVE_EFFECTS, data, &reply);
return reply.readInt32();
}
virtual audio_module_handle_t loadHwModule(const char *name)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeCString(name);
remote()->transact(LOAD_HW_MODULE, data, &reply);
return (audio_module_handle_t) reply.readInt32();
}
virtual uint32_t getPrimaryOutputSamplingRate()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
remote()->transact(GET_PRIMARY_OUTPUT_SAMPLING_RATE, data, &reply);
return reply.readInt32();
}
virtual size_t getPrimaryOutputFrameCount()
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
remote()->transact(GET_PRIMARY_OUTPUT_FRAME_COUNT, data, &reply);
return reply.readInt64();
}
virtual status_t setLowRamDevice(bool isLowRamDevice)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32((int) isLowRamDevice);
remote()->transact(SET_LOW_RAM_DEVICE, data, &reply);
return reply.readInt32();
}
virtual status_t listAudioPorts(unsigned int *num_ports,
struct audio_port *ports)
{
if (num_ports == NULL || *num_ports == 0 || ports == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(*num_ports);
status_t status = remote()->transact(LIST_AUDIO_PORTS, data, &reply);
if (status != NO_ERROR ||
(status = (status_t)reply.readInt32()) != NO_ERROR) {
return status;
}
*num_ports = (unsigned int)reply.readInt32();
reply.read(ports, *num_ports * sizeof(struct audio_port));
return status;
}
virtual status_t getAudioPort(struct audio_port *port)
{
if (port == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(port, sizeof(struct audio_port));
status_t status = remote()->transact(GET_AUDIO_PORT, data, &reply);
if (status != NO_ERROR ||
(status = (status_t)reply.readInt32()) != NO_ERROR) {
return status;
}
reply.read(port, sizeof(struct audio_port));
return status;
}
virtual status_t createAudioPatch(const struct audio_patch *patch,
audio_patch_handle_t *handle)
{
if (patch == NULL || handle == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(patch, sizeof(struct audio_patch));
data.write(handle, sizeof(audio_patch_handle_t));
status_t status = remote()->transact(CREATE_AUDIO_PATCH, data, &reply);
if (status != NO_ERROR ||
(status = (status_t)reply.readInt32()) != NO_ERROR) {
return status;
}
reply.read(handle, sizeof(audio_patch_handle_t));
return status;
}
virtual status_t releaseAudioPatch(audio_patch_handle_t handle)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(&handle, sizeof(audio_patch_handle_t));
status_t status = remote()->transact(RELEASE_AUDIO_PATCH, data, &reply);
if (status != NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual status_t listAudioPatches(unsigned int *num_patches,
struct audio_patch *patches)
{
if (num_patches == NULL || *num_patches == 0 || patches == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(*num_patches);
status_t status = remote()->transact(LIST_AUDIO_PATCHES, data, &reply);
if (status != NO_ERROR ||
(status = (status_t)reply.readInt32()) != NO_ERROR) {
return status;
}
*num_patches = (unsigned int)reply.readInt32();
reply.read(patches, *num_patches * sizeof(struct audio_patch));
return status;
}
virtual status_t setAudioPortConfig(const struct audio_port_config *config)
{
if (config == NULL) {
return BAD_VALUE;
}
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.write(config, sizeof(struct audio_port_config));
status_t status = remote()->transact(SET_AUDIO_PORT_CONFIG, data, &reply);
if (status != NO_ERROR) {
status = (status_t)reply.readInt32();
}
return status;
}
virtual audio_hw_sync_t getAudioHwSyncForSession(audio_session_t sessionId)
{
Parcel data, reply;
data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
data.writeInt32(sessionId);
status_t status = remote()->transact(GET_AUDIO_HW_SYNC, data, &reply);
if (status != NO_ERROR) {
return AUDIO_HW_SYNC_INVALID;
}
return (audio_hw_sync_t)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);
int streamType = data.readInt32();
uint32_t sampleRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
audio_channel_mask_t channelMask = data.readInt32();
size_t frameCount = data.readInt64();
track_flags_t flags = (track_flags_t) data.readInt32();
bool haveSharedBuffer = data.readInt32() != 0;
sp<IMemory> buffer;
if (haveSharedBuffer) {
buffer = interface_cast<IMemory>(data.readStrongBinder());
}
audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
pid_t tid = (pid_t) data.readInt32();
int sessionId = data.readInt32();
int clientUid = data.readInt32();
status_t status;
sp<IAudioTrack> track;
if ((haveSharedBuffer && (buffer == 0)) ||
((buffer != 0) && (buffer->pointer() == NULL))) {
ALOGW("CREATE_TRACK: cannot retrieve shared memory");
status = DEAD_OBJECT;
} else {
track = createTrack(
(audio_stream_type_t) streamType, sampleRate, format,
channelMask, &frameCount, &flags, buffer, output, tid,
&sessionId, clientUid, &status);
LOG_ALWAYS_FATAL_IF((track != 0) != (status == NO_ERROR));
}
reply->writeInt64(frameCount);
reply->writeInt32(flags);
reply->writeInt32(sessionId);
reply->writeInt32(status);
reply->writeStrongBinder(track->asBinder());
return NO_ERROR;
} break;
case OPEN_RECORD: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t input = (audio_io_handle_t) data.readInt32();
uint32_t sampleRate = data.readInt32();
audio_format_t format = (audio_format_t) data.readInt32();
audio_channel_mask_t channelMask = data.readInt32();
size_t frameCount = data.readInt64();
track_flags_t flags = (track_flags_t) data.readInt32();
pid_t tid = (pid_t) data.readInt32();
int sessionId = data.readInt32();
size_t notificationFrames = data.readInt64();
sp<IMemory> cblk;
sp<IMemory> buffers;
status_t status;
sp<IAudioRecord> record = openRecord(input,
sampleRate, format, channelMask, &frameCount, &flags, tid, &sessionId,
&notificationFrames,
cblk, buffers, &status);
LOG_ALWAYS_FATAL_IF((record != 0) != (status == NO_ERROR));
reply->writeInt64(frameCount);
reply->writeInt32(flags);
reply->writeInt32(sessionId);
reply->writeInt64(notificationFrames);
reply->writeInt32(status);
reply->writeStrongBinder(record->asBinder());
reply->writeStrongBinder(cblk->asBinder());
reply->writeStrongBinder(buffers->asBinder());
return NO_ERROR;
} break;
case SAMPLE_RATE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32( sampleRate((audio_io_handle_t) data.readInt32()) );
return NO_ERROR;
} break;
case FORMAT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32( format((audio_io_handle_t) data.readInt32()) );
return NO_ERROR;
} break;
case FRAME_COUNT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt64( frameCount((audio_io_handle_t) data.readInt32()) );
return NO_ERROR;
} break;
case LATENCY: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32( latency((audio_io_handle_t) 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();
audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
reply->writeInt32( setStreamVolume((audio_stream_type_t) stream, volume, output) );
return NO_ERROR;
} break;
case SET_STREAM_MUTE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
int stream = data.readInt32();
reply->writeInt32( setStreamMute((audio_stream_type_t) 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((audio_stream_type_t) stream, output) );
return NO_ERROR;
} break;
case STREAM_MUTE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
int stream = data.readInt32();
reply->writeInt32( streamMute((audio_stream_type_t) stream) );
return NO_ERROR;
} break;
case SET_MODE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_mode_t mode = (audio_mode_t) 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 SET_PARAMETERS: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
String8 keyValuePairs(data.readString8());
reply->writeInt32(setParameters(ioHandle, keyValuePairs));
return NO_ERROR;
} break;
case GET_PARAMETERS: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t ioHandle = (audio_io_handle_t) 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();
audio_format_t format = (audio_format_t) data.readInt32();
audio_channel_mask_t channelMask = data.readInt32();
reply->writeInt64( getInputBufferSize(sampleRate, format, channelMask) );
return NO_ERROR;
} break;
case OPEN_OUTPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
audio_config_t config;
data.read(&config, sizeof(audio_config_t));
audio_devices_t devices = (audio_devices_t)data.readInt32();
String8 address(data.readString8());
audio_output_flags_t flags = (audio_output_flags_t) data.readInt32();
uint32_t latencyMs;
audio_io_handle_t output;
status_t status = openOutput(module, &output, &config,
&devices, address, &latencyMs, flags);
ALOGV("OPEN_OUTPUT output, %d", output);
reply->writeInt32((int32_t)status);
if (status == NO_ERROR) {
reply->writeInt32((int32_t)output);
reply->write(&config, sizeof(audio_config_t));
reply->writeInt32(devices);
reply->writeInt32(latencyMs);
}
return NO_ERROR;
} break;
case OPEN_DUPLICATE_OUTPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t output1 = (audio_io_handle_t) data.readInt32();
audio_io_handle_t output2 = (audio_io_handle_t) data.readInt32();
reply->writeInt32((int32_t) openDuplicateOutput(output1, output2));
return NO_ERROR;
} break;
case CLOSE_OUTPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(closeOutput((audio_io_handle_t) data.readInt32()));
return NO_ERROR;
} break;
case SUSPEND_OUTPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(suspendOutput((audio_io_handle_t) data.readInt32()));
return NO_ERROR;
} break;
case RESTORE_OUTPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(restoreOutput((audio_io_handle_t) data.readInt32()));
return NO_ERROR;
} break;
case OPEN_INPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_module_handle_t module = (audio_module_handle_t)data.readInt32();
audio_io_handle_t input = (audio_io_handle_t)data.readInt32();
audio_config_t config;
data.read(&config, sizeof(audio_config_t));
audio_devices_t device = (audio_devices_t)data.readInt32();
String8 address(data.readString8());
audio_source_t source = (audio_source_t)data.readInt32();
audio_input_flags_t flags = (audio_input_flags_t) data.readInt32();
status_t status = openInput(module, &input, &config,
&device, address, source, flags);
reply->writeInt32((int32_t) status);
if (status == NO_ERROR) {
reply->writeInt32((int32_t) input);
reply->write(&config, sizeof(audio_config_t));
reply->writeInt32(device);
}
return NO_ERROR;
} break;
case CLOSE_INPUT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(closeInput((audio_io_handle_t) data.readInt32()));
return NO_ERROR;
} break;
case INVALIDATE_STREAM: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_stream_type_t stream = (audio_stream_type_t) data.readInt32();
reply->writeInt32(invalidateStream(stream));
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;
case GET_RENDER_POSITION: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
uint32_t halFrames;
uint32_t dspFrames;
status_t status = getRenderPosition(&halFrames, &dspFrames, output);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->writeInt32(halFrames);
reply->writeInt32(dspFrames);
}
return NO_ERROR;
}
case GET_INPUT_FRAMES_LOST: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_io_handle_t ioHandle = (audio_io_handle_t) data.readInt32();
reply->writeInt32((int32_t) getInputFramesLost(ioHandle));
return NO_ERROR;
} break;
case NEW_AUDIO_SESSION_ID: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(newAudioUniqueId());
return NO_ERROR;
} break;
case ACQUIRE_AUDIO_SESSION_ID: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
int audioSession = data.readInt32();
int pid = data.readInt32();
acquireAudioSessionId(audioSession, pid);
return NO_ERROR;
} break;
case RELEASE_AUDIO_SESSION_ID: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
int audioSession = data.readInt32();
int pid = data.readInt32();
releaseAudioSessionId(audioSession, pid);
return NO_ERROR;
} break;
case QUERY_NUM_EFFECTS: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
uint32_t numEffects;
status_t status = queryNumberEffects(&numEffects);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->writeInt32((int32_t)numEffects);
}
return NO_ERROR;
}
case QUERY_EFFECT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
effect_descriptor_t desc;
status_t status = queryEffect(data.readInt32(), &desc);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&desc, sizeof(effect_descriptor_t));
}
return NO_ERROR;
}
case GET_EFFECT_DESCRIPTOR: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
effect_uuid_t uuid;
data.read(&uuid, sizeof(effect_uuid_t));
effect_descriptor_t desc;
status_t status = getEffectDescriptor(&uuid, &desc);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&desc, sizeof(effect_descriptor_t));
}
return NO_ERROR;
}
case CREATE_EFFECT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
effect_descriptor_t desc;
data.read(&desc, sizeof(effect_descriptor_t));
sp<IEffectClient> client = interface_cast<IEffectClient>(data.readStrongBinder());
int32_t priority = data.readInt32();
audio_io_handle_t output = (audio_io_handle_t) data.readInt32();
int sessionId = data.readInt32();
status_t status;
int id;
int enabled;
sp<IEffect> effect = createEffect(&desc, client, priority, output, sessionId,
&status, &id, &enabled);
reply->writeInt32(status);
reply->writeInt32(id);
reply->writeInt32(enabled);
reply->writeStrongBinder(effect->asBinder());
reply->write(&desc, sizeof(effect_descriptor_t));
return NO_ERROR;
} break;
case MOVE_EFFECTS: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
int session = data.readInt32();
audio_io_handle_t srcOutput = (audio_io_handle_t) data.readInt32();
audio_io_handle_t dstOutput = (audio_io_handle_t) data.readInt32();
reply->writeInt32(moveEffects(session, srcOutput, dstOutput));
return NO_ERROR;
} break;
case LOAD_HW_MODULE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(loadHwModule(data.readCString()));
return NO_ERROR;
} break;
case GET_PRIMARY_OUTPUT_SAMPLING_RATE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(getPrimaryOutputSamplingRate());
return NO_ERROR;
} break;
case GET_PRIMARY_OUTPUT_FRAME_COUNT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt64(getPrimaryOutputFrameCount());
return NO_ERROR;
} break;
case SET_LOW_RAM_DEVICE: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
bool isLowRamDevice = data.readInt32() != 0;
reply->writeInt32(setLowRamDevice(isLowRamDevice));
return NO_ERROR;
} break;
case LIST_AUDIO_PORTS: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
unsigned int numPortsReq = data.readInt32();
if (numPortsReq > MAX_ITEMS_PER_LIST) {
numPortsReq = MAX_ITEMS_PER_LIST;
}
unsigned int numPorts = numPortsReq;
struct audio_port *ports =
(struct audio_port *)calloc(numPortsReq,
sizeof(struct audio_port));
if (ports == NULL) {
reply->writeInt32(NO_MEMORY);
reply->writeInt32(0);
return NO_ERROR;
}
status_t status = listAudioPorts(&numPorts, ports);
reply->writeInt32(status);
reply->writeInt32(numPorts);
if (status == NO_ERROR) {
if (numPortsReq > numPorts) {
numPortsReq = numPorts;
}
reply->write(ports, numPortsReq * sizeof(struct audio_port));
}
free(ports);
return NO_ERROR;
} break;
case GET_AUDIO_PORT: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
struct audio_port port;
data.read(&port, sizeof(struct audio_port));
status_t status = getAudioPort(&port);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&port, sizeof(struct audio_port));
}
return NO_ERROR;
} break;
case CREATE_AUDIO_PATCH: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
struct audio_patch patch;
data.read(&patch, sizeof(struct audio_patch));
audio_patch_handle_t handle;
data.read(&handle, sizeof(audio_patch_handle_t));
status_t status = createAudioPatch(&patch, &handle);
reply->writeInt32(status);
if (status == NO_ERROR) {
reply->write(&handle, sizeof(audio_patch_handle_t));
}
return NO_ERROR;
} break;
case RELEASE_AUDIO_PATCH: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
audio_patch_handle_t handle;
data.read(&handle, sizeof(audio_patch_handle_t));
status_t status = releaseAudioPatch(handle);
reply->writeInt32(status);
return NO_ERROR;
} break;
case LIST_AUDIO_PATCHES: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
unsigned int numPatchesReq = data.readInt32();
if (numPatchesReq > MAX_ITEMS_PER_LIST) {
numPatchesReq = MAX_ITEMS_PER_LIST;
}
unsigned int numPatches = numPatchesReq;
struct audio_patch *patches =
(struct audio_patch *)calloc(numPatchesReq,
sizeof(struct audio_patch));
if (patches == NULL) {
reply->writeInt32(NO_MEMORY);
reply->writeInt32(0);
return NO_ERROR;
}
status_t status = listAudioPatches(&numPatches, patches);
reply->writeInt32(status);
reply->writeInt32(numPatches);
if (status == NO_ERROR) {
if (numPatchesReq > numPatches) {
numPatchesReq = numPatches;
}
reply->write(patches, numPatchesReq * sizeof(struct audio_patch));
}
free(patches);
return NO_ERROR;
} break;
case SET_AUDIO_PORT_CONFIG: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
struct audio_port_config config;
data.read(&config, sizeof(struct audio_port_config));
status_t status = setAudioPortConfig(&config);
reply->writeInt32(status);
return NO_ERROR;
} break;
case GET_AUDIO_HW_SYNC: {
CHECK_INTERFACE(IAudioFlinger, data, reply);
reply->writeInt32(getAudioHwSyncForSession((audio_session_t)data.readInt32()));
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android