IAudioFlinger.cpp revision 342e9cf388cceb807def720e40e8b0a217f4bcaa 
1/* //device/extlibs/pv/android/IAudioflinger.cpp
2**
3** Copyright 2007, The Android Open Source Project
4**
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
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
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.
16*/
17
18#define LOG_TAG "IAudioFlinger"
19//#define LOG_NDEBUG 0
20#include <utils/Log.h>
21
22#include <stdint.h>
23#include <sys/types.h>
24
25#include <binder/Parcel.h>
26
27#include <media/IAudioFlinger.h>
28
29namespace android {
30
31enum {
32    CREATE_TRACK = IBinder::FIRST_CALL_TRANSACTION,
33    OPEN_RECORD,
34    SAMPLE_RATE,
35    CHANNEL_COUNT,
36    FORMAT,
37    FRAME_COUNT,
38    LATENCY,
39    SET_MASTER_VOLUME,
40    SET_MASTER_MUTE,
41    MASTER_VOLUME,
42    MASTER_MUTE,
43    SET_STREAM_VOLUME,
44    SET_STREAM_MUTE,
45    STREAM_VOLUME,
46    STREAM_MUTE,
47    SET_MODE,
48    SET_MIC_MUTE,
49    GET_MIC_MUTE,
50    IS_STREAM_ACTIVE,
51    SET_PARAMETERS,
52    GET_PARAMETERS,
53    REGISTER_CLIENT,
54    GET_INPUTBUFFERSIZE,
55    OPEN_OUTPUT,
56    OPEN_DUPLICATE_OUTPUT,
57    CLOSE_OUTPUT,
58    SUSPEND_OUTPUT,
59    RESTORE_OUTPUT,
60    OPEN_INPUT,
61    CLOSE_INPUT,
62    SET_STREAM_OUTPUT,
63    SET_VOICE_VOLUME,
64    GET_RENDER_POSITION
65};
66
67class BpAudioFlinger : public BpInterface<IAudioFlinger>
68{
69public:
70    BpAudioFlinger(const sp<IBinder>& impl)
71        : BpInterface<IAudioFlinger>(impl)
72    {
73    }
74
75    virtual sp<IAudioTrack> createTrack(
76                                pid_t pid,
77                                int streamType,
78                                uint32_t sampleRate,
79                                int format,
80                                int channelCount,
81                                int frameCount,
82                                uint32_t flags,
83                                const sp<IMemory>& sharedBuffer,
84                                int output,
85                                status_t *status)
86    {
87        Parcel data, reply;
88        sp<IAudioTrack> track;
89        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
90        data.writeInt32(pid);
91        data.writeInt32(streamType);
92        data.writeInt32(sampleRate);
93        data.writeInt32(format);
94        data.writeInt32(channelCount);
95        data.writeInt32(frameCount);
96        data.writeInt32(flags);
97        data.writeStrongBinder(sharedBuffer->asBinder());
98        data.writeInt32(output);
99        status_t lStatus = remote()->transact(CREATE_TRACK, data, &reply);
100        if (lStatus != NO_ERROR) {
101            LOGE("createTrack error: %s", strerror(-lStatus));
102        } else {
103            lStatus = reply.readInt32();
104            track = interface_cast<IAudioTrack>(reply.readStrongBinder());
105        }
106        if (status) {
107            *status = lStatus;
108        }
109        return track;
110    }
111
112    virtual sp<IAudioRecord> openRecord(
113                                pid_t pid,
114                                int input,
115                                uint32_t sampleRate,
116                                int format,
117                                int channelCount,
118                                int frameCount,
119                                uint32_t flags,
120                                status_t *status)
121    {
122        Parcel data, reply;
123        sp<IAudioRecord> record;
124        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
125        data.writeInt32(pid);
126        data.writeInt32(input);
127        data.writeInt32(sampleRate);
128        data.writeInt32(format);
129        data.writeInt32(channelCount);
130        data.writeInt32(frameCount);
131        data.writeInt32(flags);
132        status_t lStatus = remote()->transact(OPEN_RECORD, data, &reply);
133        if (lStatus != NO_ERROR) {
134            LOGE("openRecord error: %s", strerror(-lStatus));
135        } else {
136            lStatus = reply.readInt32();
137            record = interface_cast<IAudioRecord>(reply.readStrongBinder());
138        }
139        if (status) {
140            *status = lStatus;
141        }
142        return record;
143    }
144
145    virtual uint32_t sampleRate(int output) const
146    {
147        Parcel data, reply;
148        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
149        data.writeInt32(output);
150        remote()->transact(SAMPLE_RATE, data, &reply);
151        return reply.readInt32();
152    }
153
154    virtual int channelCount(int output) const
155    {
156        Parcel data, reply;
157        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
158        data.writeInt32(output);
159        remote()->transact(CHANNEL_COUNT, data, &reply);
160        return reply.readInt32();
161    }
162
163    virtual int format(int output) const
164    {
165        Parcel data, reply;
166        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
167        data.writeInt32(output);
168        remote()->transact(FORMAT, data, &reply);
169        return reply.readInt32();
170    }
171
172    virtual size_t frameCount(int output) const
173    {
174        Parcel data, reply;
175        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
176        data.writeInt32(output);
177        remote()->transact(FRAME_COUNT, data, &reply);
178        return reply.readInt32();
179    }
180
181    virtual uint32_t latency(int output) const
182    {
183        Parcel data, reply;
184        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
185        data.writeInt32(output);
186        remote()->transact(LATENCY, data, &reply);
187        return reply.readInt32();
188    }
189
190    virtual status_t setMasterVolume(float value)
191    {
192        Parcel data, reply;
193        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
194        data.writeFloat(value);
195        remote()->transact(SET_MASTER_VOLUME, data, &reply);
196        return reply.readInt32();
197    }
198
199    virtual status_t setMasterMute(bool muted)
200    {
201        Parcel data, reply;
202        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
203        data.writeInt32(muted);
204        remote()->transact(SET_MASTER_MUTE, data, &reply);
205        return reply.readInt32();
206    }
207
208    virtual float masterVolume() const
209    {
210        Parcel data, reply;
211        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
212        remote()->transact(MASTER_VOLUME, data, &reply);
213        return reply.readFloat();
214    }
215
216    virtual bool masterMute() const
217    {
218        Parcel data, reply;
219        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
220        remote()->transact(MASTER_MUTE, data, &reply);
221        return reply.readInt32();
222    }
223
224    virtual status_t setStreamVolume(int stream, float value, int output)
225    {
226        Parcel data, reply;
227        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
228        data.writeInt32(stream);
229        data.writeFloat(value);
230        data.writeInt32(output);
231        remote()->transact(SET_STREAM_VOLUME, data, &reply);
232        return reply.readInt32();
233    }
234
235    virtual status_t setStreamMute(int stream, bool muted)
236    {
237        Parcel data, reply;
238        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
239        data.writeInt32(stream);
240        data.writeInt32(muted);
241        remote()->transact(SET_STREAM_MUTE, data, &reply);
242        return reply.readInt32();
243    }
244
245    virtual float streamVolume(int stream, int output) const
246    {
247        Parcel data, reply;
248        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
249        data.writeInt32(stream);
250        data.writeInt32(output);
251        remote()->transact(STREAM_VOLUME, data, &reply);
252        return reply.readFloat();
253    }
254
255    virtual bool streamMute(int stream) const
256    {
257        Parcel data, reply;
258        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
259        data.writeInt32(stream);
260        remote()->transact(STREAM_MUTE, data, &reply);
261        return reply.readInt32();
262    }
263
264    virtual status_t setMode(int mode)
265    {
266        Parcel data, reply;
267        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
268        data.writeInt32(mode);
269        remote()->transact(SET_MODE, data, &reply);
270        return reply.readInt32();
271    }
272
273    virtual status_t setMicMute(bool state)
274    {
275        Parcel data, reply;
276        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
277        data.writeInt32(state);
278        remote()->transact(SET_MIC_MUTE, data, &reply);
279        return reply.readInt32();
280    }
281
282    virtual bool getMicMute() const
283    {
284        Parcel data, reply;
285        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
286        remote()->transact(GET_MIC_MUTE, data, &reply);
287        return reply.readInt32();
288    }
289
290    virtual bool isStreamActive(int stream) const
291    {
292        Parcel data, reply;
293        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
294        data.writeInt32(stream);
295        remote()->transact(IS_STREAM_ACTIVE, data, &reply);
296        return reply.readInt32();
297    }
298
299    virtual status_t setParameters(int ioHandle, const String8& keyValuePairs)
300    {
301        Parcel data, reply;
302        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
303        data.writeInt32(ioHandle);
304        data.writeString8(keyValuePairs);
305        remote()->transact(SET_PARAMETERS, data, &reply);
306        return reply.readInt32();
307    }
308
309    virtual String8 getParameters(int ioHandle, const String8& keys)
310    {
311        Parcel data, reply;
312        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
313        data.writeInt32(ioHandle);
314        data.writeString8(keys);
315        remote()->transact(GET_PARAMETERS, data, &reply);
316        return reply.readString8();
317    }
318
319    virtual void registerClient(const sp<IAudioFlingerClient>& client)
320    {
321        Parcel data, reply;
322        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
323        data.writeStrongBinder(client->asBinder());
324        remote()->transact(REGISTER_CLIENT, data, &reply);
325    }
326
327    virtual size_t getInputBufferSize(uint32_t sampleRate, int format, int channelCount)
328    {
329        Parcel data, reply;
330        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
331        data.writeInt32(sampleRate);
332        data.writeInt32(format);
333        data.writeInt32(channelCount);
334        remote()->transact(GET_INPUTBUFFERSIZE, data, &reply);
335        return reply.readInt32();
336    }
337
338    virtual int openOutput(uint32_t *pDevices,
339                            uint32_t *pSamplingRate,
340                            uint32_t *pFormat,
341                            uint32_t *pChannels,
342                            uint32_t *pLatencyMs,
343                            uint32_t flags)
344    {
345        Parcel data, reply;
346        uint32_t devices = pDevices ? *pDevices : 0;
347        uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0;
348        uint32_t format = pFormat ? *pFormat : 0;
349        uint32_t channels = pChannels ? *pChannels : 0;
350        uint32_t latency = pLatencyMs ? *pLatencyMs : 0;
351
352        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
353        data.writeInt32(devices);
354        data.writeInt32(samplingRate);
355        data.writeInt32(format);
356        data.writeInt32(channels);
357        data.writeInt32(latency);
358        data.writeInt32(flags);
359        remote()->transact(OPEN_OUTPUT, data, &reply);
360        int  output = reply.readInt32();
361        LOGV("openOutput() returned output, %p", output);
362        devices = reply.readInt32();
363        if (pDevices) *pDevices = devices;
364        samplingRate = reply.readInt32();
365        if (pSamplingRate) *pSamplingRate = samplingRate;
366        format = reply.readInt32();
367        if (pFormat) *pFormat = format;
368        channels = reply.readInt32();
369        if (pChannels) *pChannels = channels;
370        latency = reply.readInt32();
371        if (pLatencyMs) *pLatencyMs = latency;
372        return output;
373    }
374
375    virtual int openDuplicateOutput(int output1, int output2)
376    {
377        Parcel data, reply;
378        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
379        data.writeInt32(output1);
380        data.writeInt32(output2);
381        remote()->transact(OPEN_DUPLICATE_OUTPUT, data, &reply);
382        return reply.readInt32();
383    }
384
385    virtual status_t closeOutput(int output)
386    {
387        Parcel data, reply;
388        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
389        data.writeInt32(output);
390        remote()->transact(CLOSE_OUTPUT, data, &reply);
391        return reply.readInt32();
392    }
393
394    virtual status_t suspendOutput(int output)
395    {
396        Parcel data, reply;
397        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
398        data.writeInt32(output);
399        remote()->transact(SUSPEND_OUTPUT, data, &reply);
400        return reply.readInt32();
401    }
402
403    virtual status_t restoreOutput(int output)
404    {
405        Parcel data, reply;
406        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
407        data.writeInt32(output);
408        remote()->transact(RESTORE_OUTPUT, data, &reply);
409        return reply.readInt32();
410    }
411
412    virtual int openInput(uint32_t *pDevices,
413                            uint32_t *pSamplingRate,
414                            uint32_t *pFormat,
415                            uint32_t *pChannels,
416                            uint32_t acoustics)
417    {
418        Parcel data, reply;
419        uint32_t devices = pDevices ? *pDevices : 0;
420        uint32_t samplingRate = pSamplingRate ? *pSamplingRate : 0;
421        uint32_t format = pFormat ? *pFormat : 0;
422        uint32_t channels = pChannels ? *pChannels : 0;
423
424        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
425        data.writeInt32(devices);
426        data.writeInt32(samplingRate);
427        data.writeInt32(format);
428        data.writeInt32(channels);
429        data.writeInt32(acoustics);
430        remote()->transact(OPEN_INPUT, data, &reply);
431        int input = reply.readInt32();
432        devices = reply.readInt32();
433        if (pDevices) *pDevices = devices;
434        samplingRate = reply.readInt32();
435        if (pSamplingRate) *pSamplingRate = samplingRate;
436        format = reply.readInt32();
437        if (pFormat) *pFormat = format;
438        channels = reply.readInt32();
439        if (pChannels) *pChannels = channels;
440        return input;
441    }
442
443    virtual status_t closeInput(int input)
444    {
445        Parcel data, reply;
446        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
447        data.writeInt32(input);
448        remote()->transact(CLOSE_INPUT, data, &reply);
449        return reply.readInt32();
450    }
451
452    virtual status_t setStreamOutput(uint32_t stream, int output)
453    {
454        Parcel data, reply;
455        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
456        data.writeInt32(stream);
457        data.writeInt32(output);
458        remote()->transact(SET_STREAM_OUTPUT, data, &reply);
459        return reply.readInt32();
460    }
461
462    virtual status_t setVoiceVolume(float volume)
463    {
464        Parcel data, reply;
465        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
466        data.writeFloat(volume);
467        remote()->transact(SET_VOICE_VOLUME, data, &reply);
468        return reply.readInt32();
469    }
470
471    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output)
472    {
473        Parcel data, reply;
474        data.writeInterfaceToken(IAudioFlinger::getInterfaceDescriptor());
475        data.writeInt32(output);
476        remote()->transact(GET_RENDER_POSITION, data, &reply);
477        status_t status = reply.readInt32();
478        if (status == NO_ERROR) {
479            uint32_t tmp = reply.readInt32();
480            if (halFrames) {
481                *halFrames = tmp;
482            }
483            tmp = reply.readInt32();
484            if (dspFrames) {
485                *dspFrames = tmp;
486            }
487        }
488        return status;
489    }
490};
491
492IMPLEMENT_META_INTERFACE(AudioFlinger, "android.media.IAudioFlinger");
493
494// ----------------------------------------------------------------------
495
496status_t BnAudioFlinger::onTransact(
497    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
498{
499    switch(code) {
500        case CREATE_TRACK: {
501            CHECK_INTERFACE(IAudioFlinger, data, reply);
502            pid_t pid = data.readInt32();
503            int streamType = data.readInt32();
504            uint32_t sampleRate = data.readInt32();
505            int format = data.readInt32();
506            int channelCount = data.readInt32();
507            size_t bufferCount = data.readInt32();
508            uint32_t flags = data.readInt32();
509            sp<IMemory> buffer = interface_cast<IMemory>(data.readStrongBinder());
510            int output = data.readInt32();
511            status_t status;
512            sp<IAudioTrack> track = createTrack(pid,
513                    streamType, sampleRate, format,
514                    channelCount, bufferCount, flags, buffer, output, &status);
515            reply->writeInt32(status);
516            reply->writeStrongBinder(track->asBinder());
517            return NO_ERROR;
518        } break;
519        case OPEN_RECORD: {
520            CHECK_INTERFACE(IAudioFlinger, data, reply);
521            pid_t pid = data.readInt32();
522            int input = data.readInt32();
523            uint32_t sampleRate = data.readInt32();
524            int format = data.readInt32();
525            int channelCount = data.readInt32();
526            size_t bufferCount = data.readInt32();
527            uint32_t flags = data.readInt32();
528            status_t status;
529            sp<IAudioRecord> record = openRecord(pid, input,
530                    sampleRate, format, channelCount, bufferCount, flags, &status);
531            reply->writeInt32(status);
532            reply->writeStrongBinder(record->asBinder());
533            return NO_ERROR;
534        } break;
535        case SAMPLE_RATE: {
536            CHECK_INTERFACE(IAudioFlinger, data, reply);
537            reply->writeInt32( sampleRate(data.readInt32()) );
538            return NO_ERROR;
539        } break;
540        case CHANNEL_COUNT: {
541            CHECK_INTERFACE(IAudioFlinger, data, reply);
542            reply->writeInt32( channelCount(data.readInt32()) );
543            return NO_ERROR;
544        } break;
545        case FORMAT: {
546            CHECK_INTERFACE(IAudioFlinger, data, reply);
547            reply->writeInt32( format(data.readInt32()) );
548            return NO_ERROR;
549        } break;
550        case FRAME_COUNT: {
551            CHECK_INTERFACE(IAudioFlinger, data, reply);
552            reply->writeInt32( frameCount(data.readInt32()) );
553            return NO_ERROR;
554        } break;
555        case LATENCY: {
556            CHECK_INTERFACE(IAudioFlinger, data, reply);
557            reply->writeInt32( latency(data.readInt32()) );
558            return NO_ERROR;
559        } break;
560         case SET_MASTER_VOLUME: {
561            CHECK_INTERFACE(IAudioFlinger, data, reply);
562            reply->writeInt32( setMasterVolume(data.readFloat()) );
563            return NO_ERROR;
564        } break;
565        case SET_MASTER_MUTE: {
566            CHECK_INTERFACE(IAudioFlinger, data, reply);
567            reply->writeInt32( setMasterMute(data.readInt32()) );
568            return NO_ERROR;
569        } break;
570        case MASTER_VOLUME: {
571            CHECK_INTERFACE(IAudioFlinger, data, reply);
572            reply->writeFloat( masterVolume() );
573            return NO_ERROR;
574        } break;
575        case MASTER_MUTE: {
576            CHECK_INTERFACE(IAudioFlinger, data, reply);
577            reply->writeInt32( masterMute() );
578            return NO_ERROR;
579        } break;
580        case SET_STREAM_VOLUME: {
581            CHECK_INTERFACE(IAudioFlinger, data, reply);
582            int stream = data.readInt32();
583            float volume = data.readFloat();
584            int output = data.readInt32();
585            reply->writeInt32( setStreamVolume(stream, volume, output) );
586            return NO_ERROR;
587        } break;
588        case SET_STREAM_MUTE: {
589            CHECK_INTERFACE(IAudioFlinger, data, reply);
590            int stream = data.readInt32();
591            reply->writeInt32( setStreamMute(stream, data.readInt32()) );
592            return NO_ERROR;
593        } break;
594        case STREAM_VOLUME: {
595            CHECK_INTERFACE(IAudioFlinger, data, reply);
596            int stream = data.readInt32();
597            int output = data.readInt32();
598            reply->writeFloat( streamVolume(stream, output) );
599            return NO_ERROR;
600        } break;
601        case STREAM_MUTE: {
602            CHECK_INTERFACE(IAudioFlinger, data, reply);
603            int stream = data.readInt32();
604            reply->writeInt32( streamMute(stream) );
605            return NO_ERROR;
606        } break;
607        case SET_MODE: {
608            CHECK_INTERFACE(IAudioFlinger, data, reply);
609            int mode = data.readInt32();
610            reply->writeInt32( setMode(mode) );
611            return NO_ERROR;
612        } break;
613        case SET_MIC_MUTE: {
614            CHECK_INTERFACE(IAudioFlinger, data, reply);
615            int state = data.readInt32();
616            reply->writeInt32( setMicMute(state) );
617            return NO_ERROR;
618        } break;
619        case GET_MIC_MUTE: {
620            CHECK_INTERFACE(IAudioFlinger, data, reply);
621            reply->writeInt32( getMicMute() );
622            return NO_ERROR;
623        } break;
624        case IS_STREAM_ACTIVE: {
625            CHECK_INTERFACE(IAudioFlinger, data, reply);
626            int stream = data.readInt32();
627            reply->writeInt32( isStreamActive(stream) );
628            return NO_ERROR;
629        } break;
630        case SET_PARAMETERS: {
631            CHECK_INTERFACE(IAudioFlinger, data, reply);
632            int ioHandle = data.readInt32();
633            String8 keyValuePairs(data.readString8());
634            reply->writeInt32(setParameters(ioHandle, keyValuePairs));
635            return NO_ERROR;
636         } break;
637        case GET_PARAMETERS: {
638            CHECK_INTERFACE(IAudioFlinger, data, reply);
639            int ioHandle = data.readInt32();
640            String8 keys(data.readString8());
641            reply->writeString8(getParameters(ioHandle, keys));
642            return NO_ERROR;
643         } break;
644
645        case REGISTER_CLIENT: {
646            CHECK_INTERFACE(IAudioFlinger, data, reply);
647            sp<IAudioFlingerClient> client = interface_cast<IAudioFlingerClient>(data.readStrongBinder());
648            registerClient(client);
649            return NO_ERROR;
650        } break;
651        case GET_INPUTBUFFERSIZE: {
652            CHECK_INTERFACE(IAudioFlinger, data, reply);
653            uint32_t sampleRate = data.readInt32();
654            int format = data.readInt32();
655            int channelCount = data.readInt32();
656            reply->writeInt32( getInputBufferSize(sampleRate, format, channelCount) );
657            return NO_ERROR;
658        } break;
659        case OPEN_OUTPUT: {
660            CHECK_INTERFACE(IAudioFlinger, data, reply);
661            uint32_t devices = data.readInt32();
662            uint32_t samplingRate = data.readInt32();
663            uint32_t format = data.readInt32();
664            uint32_t channels = data.readInt32();
665            uint32_t latency = data.readInt32();
666            uint32_t flags = data.readInt32();
667            int output = openOutput(&devices,
668                                     &samplingRate,
669                                     &format,
670                                     &channels,
671                                     &latency,
672                                     flags);
673            LOGV("OPEN_OUTPUT output, %p", output);
674            reply->writeInt32(output);
675            reply->writeInt32(devices);
676            reply->writeInt32(samplingRate);
677            reply->writeInt32(format);
678            reply->writeInt32(channels);
679            reply->writeInt32(latency);
680            return NO_ERROR;
681        } break;
682        case OPEN_DUPLICATE_OUTPUT: {
683            CHECK_INTERFACE(IAudioFlinger, data, reply);
684            int output1 = data.readInt32();
685            int output2 = data.readInt32();
686            reply->writeInt32(openDuplicateOutput(output1, output2));
687            return NO_ERROR;
688        } break;
689        case CLOSE_OUTPUT: {
690            CHECK_INTERFACE(IAudioFlinger, data, reply);
691            reply->writeInt32(closeOutput(data.readInt32()));
692            return NO_ERROR;
693        } break;
694        case SUSPEND_OUTPUT: {
695            CHECK_INTERFACE(IAudioFlinger, data, reply);
696            reply->writeInt32(suspendOutput(data.readInt32()));
697            return NO_ERROR;
698        } break;
699        case RESTORE_OUTPUT: {
700            CHECK_INTERFACE(IAudioFlinger, data, reply);
701            reply->writeInt32(restoreOutput(data.readInt32()));
702            return NO_ERROR;
703        } break;
704        case OPEN_INPUT: {
705            CHECK_INTERFACE(IAudioFlinger, data, reply);
706            uint32_t devices = data.readInt32();
707            uint32_t samplingRate = data.readInt32();
708            uint32_t format = data.readInt32();
709            uint32_t channels = data.readInt32();
710            uint32_t acoutics = data.readInt32();
711
712            int input = openInput(&devices,
713                                     &samplingRate,
714                                     &format,
715                                     &channels,
716                                     acoutics);
717            reply->writeInt32(input);
718            reply->writeInt32(devices);
719            reply->writeInt32(samplingRate);
720            reply->writeInt32(format);
721            reply->writeInt32(channels);
722            return NO_ERROR;
723        } break;
724        case CLOSE_INPUT: {
725            CHECK_INTERFACE(IAudioFlinger, data, reply);
726            reply->writeInt32(closeInput(data.readInt32()));
727            return NO_ERROR;
728        } break;
729        case SET_STREAM_OUTPUT: {
730            CHECK_INTERFACE(IAudioFlinger, data, reply);
731            uint32_t stream = data.readInt32();
732            int output = data.readInt32();
733            reply->writeInt32(setStreamOutput(stream, output));
734            return NO_ERROR;
735        } break;
736        case SET_VOICE_VOLUME: {
737            CHECK_INTERFACE(IAudioFlinger, data, reply);
738            float volume = data.readFloat();
739            reply->writeInt32( setVoiceVolume(volume) );
740            return NO_ERROR;
741        } break;
742        case GET_RENDER_POSITION: {
743            CHECK_INTERFACE(IAudioFlinger, data, reply);
744            int output = data.readInt32();
745            uint32_t halFrames;
746            uint32_t dspFrames;
747            status_t status = getRenderPosition(&halFrames, &dspFrames, output);
748            reply->writeInt32(status);
749            if (status == NO_ERROR) {
750                reply->writeInt32(halFrames);
751                reply->writeInt32(dspFrames);
752            }
753            return NO_ERROR;
754        }
755        default:
756            return BBinder::onTransact(code, data, reply, flags);
757    }
758}
759
760// ----------------------------------------------------------------------------
761
762}; // namespace android
763