IOMX.cpp revision 26a48f304a8754d655e554178ffb6d7ba4c5aac3 
1/*
2 * Copyright (c) 2009 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "IOMX"
19#include <utils/Log.h>
20
21#include <binder/IMemory.h>
22#include <binder/Parcel.h>
23#include <media/IOMX.h>
24#include <media/stagefright/foundation/ADebug.h>
25
26namespace android {
27
28enum {
29    CONNECT = IBinder::FIRST_CALL_TRANSACTION,
30    LIVES_LOCALLY,
31    LIST_NODES,
32    ALLOCATE_NODE,
33    FREE_NODE,
34    SEND_COMMAND,
35    GET_PARAMETER,
36    SET_PARAMETER,
37    GET_CONFIG,
38    SET_CONFIG,
39    GET_STATE,
40    ENABLE_GRAPHIC_BUFFERS,
41    USE_BUFFER,
42    USE_GRAPHIC_BUFFER,
43    CREATE_INPUT_SURFACE,
44    CREATE_PERSISTENT_INPUT_SURFACE,
45    SET_INPUT_SURFACE,
46    SIGNAL_END_OF_INPUT_STREAM,
47    STORE_META_DATA_IN_BUFFERS,
48    PREPARE_FOR_ADAPTIVE_PLAYBACK,
49    ALLOC_BUFFER,
50    ALLOC_BUFFER_WITH_BACKUP,
51    FREE_BUFFER,
52    FILL_BUFFER,
53    EMPTY_BUFFER,
54    GET_EXTENSION_INDEX,
55    OBSERVER_ON_MSG,
56    GET_GRAPHIC_BUFFER_USAGE,
57    SET_INTERNAL_OPTION,
58    UPDATE_GRAPHIC_BUFFER_IN_META,
59    CONFIGURE_VIDEO_TUNNEL_MODE,
60};
61
62class BpOMX : public BpInterface<IOMX> {
63public:
64    BpOMX(const sp<IBinder> &impl)
65        : BpInterface<IOMX>(impl) {
66    }
67
68    virtual bool livesLocally(node_id node, pid_t pid) {
69        Parcel data, reply;
70        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
71        data.writeInt32((int32_t)node);
72        data.writeInt32(pid);
73        remote()->transact(LIVES_LOCALLY, data, &reply);
74
75        return reply.readInt32() != 0;
76    }
77
78    virtual status_t listNodes(List<ComponentInfo> *list) {
79        list->clear();
80
81        Parcel data, reply;
82        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
83        remote()->transact(LIST_NODES, data, &reply);
84
85        int32_t n = reply.readInt32();
86        for (int32_t i = 0; i < n; ++i) {
87            list->push_back(ComponentInfo());
88            ComponentInfo &info = *--list->end();
89
90            info.mName = reply.readString8();
91            int32_t numRoles = reply.readInt32();
92            for (int32_t j = 0; j < numRoles; ++j) {
93                info.mRoles.push_back(reply.readString8());
94            }
95        }
96
97        return OK;
98    }
99
100    virtual status_t allocateNode(
101            const char *name, const sp<IOMXObserver> &observer, node_id *node) {
102        Parcel data, reply;
103        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
104        data.writeCString(name);
105        data.writeStrongBinder(IInterface::asBinder(observer));
106        remote()->transact(ALLOCATE_NODE, data, &reply);
107
108        status_t err = reply.readInt32();
109        if (err == OK) {
110            *node = (node_id)reply.readInt32();
111        } else {
112            *node = 0;
113        }
114
115        return err;
116    }
117
118    virtual status_t freeNode(node_id node) {
119        Parcel data, reply;
120        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
121        data.writeInt32((int32_t)node);
122        remote()->transact(FREE_NODE, data, &reply);
123
124        return reply.readInt32();
125    }
126
127    virtual status_t sendCommand(
128            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
129        Parcel data, reply;
130        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
131        data.writeInt32((int32_t)node);
132        data.writeInt32(cmd);
133        data.writeInt32(param);
134        remote()->transact(SEND_COMMAND, data, &reply);
135
136        return reply.readInt32();
137    }
138
139    virtual status_t getParameter(
140            node_id node, OMX_INDEXTYPE index,
141            void *params, size_t size) {
142        Parcel data, reply;
143        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
144        data.writeInt32((int32_t)node);
145        data.writeInt32(index);
146        data.writeInt64(size);
147        data.write(params, size);
148        remote()->transact(GET_PARAMETER, data, &reply);
149
150        status_t err = reply.readInt32();
151        if (err != OK) {
152            return err;
153        }
154
155        reply.read(params, size);
156
157        return OK;
158    }
159
160    virtual status_t setParameter(
161            node_id node, OMX_INDEXTYPE index,
162            const void *params, size_t size) {
163        Parcel data, reply;
164        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
165        data.writeInt32((int32_t)node);
166        data.writeInt32(index);
167        data.writeInt64(size);
168        data.write(params, size);
169        remote()->transact(SET_PARAMETER, data, &reply);
170
171        return reply.readInt32();
172    }
173
174    virtual status_t getConfig(
175            node_id node, OMX_INDEXTYPE index,
176            void *params, size_t size) {
177        Parcel data, reply;
178        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
179        data.writeInt32((int32_t)node);
180        data.writeInt32(index);
181        data.writeInt64(size);
182        data.write(params, size);
183        remote()->transact(GET_CONFIG, data, &reply);
184
185        status_t err = reply.readInt32();
186        if (err != OK) {
187            return err;
188        }
189
190        reply.read(params, size);
191
192        return OK;
193    }
194
195    virtual status_t setConfig(
196            node_id node, OMX_INDEXTYPE index,
197            const void *params, size_t size) {
198        Parcel data, reply;
199        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
200        data.writeInt32((int32_t)node);
201        data.writeInt32(index);
202        data.writeInt64(size);
203        data.write(params, size);
204        remote()->transact(SET_CONFIG, data, &reply);
205
206        return reply.readInt32();
207    }
208
209    virtual status_t getState(
210            node_id node, OMX_STATETYPE* state) {
211        Parcel data, reply;
212        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
213        data.writeInt32((int32_t)node);
214        remote()->transact(GET_STATE, data, &reply);
215
216        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
217        return reply.readInt32();
218    }
219
220    virtual status_t enableGraphicBuffers(
221            node_id node, OMX_U32 port_index, OMX_BOOL enable) {
222        Parcel data, reply;
223        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
224        data.writeInt32((int32_t)node);
225        data.writeInt32(port_index);
226        data.writeInt32((uint32_t)enable);
227        remote()->transact(ENABLE_GRAPHIC_BUFFERS, data, &reply);
228
229        status_t err = reply.readInt32();
230        return err;
231    }
232
233    virtual status_t getGraphicBufferUsage(
234            node_id node, OMX_U32 port_index, OMX_U32* usage) {
235        Parcel data, reply;
236        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
237        data.writeInt32((int32_t)node);
238        data.writeInt32(port_index);
239        remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
240
241        status_t err = reply.readInt32();
242        *usage = reply.readInt32();
243        return err;
244    }
245
246    virtual status_t useBuffer(
247            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
248            buffer_id *buffer, OMX_U32 allottedSize) {
249        Parcel data, reply;
250        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
251        data.writeInt32((int32_t)node);
252        data.writeInt32(port_index);
253        data.writeStrongBinder(IInterface::asBinder(params));
254        data.writeInt32(allottedSize);
255        remote()->transact(USE_BUFFER, data, &reply);
256
257        status_t err = reply.readInt32();
258        if (err != OK) {
259            *buffer = 0;
260
261            return err;
262        }
263
264        *buffer = (buffer_id)reply.readInt32();
265
266        return err;
267    }
268
269
270    virtual status_t useGraphicBuffer(
271            node_id node, OMX_U32 port_index,
272            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
273        Parcel data, reply;
274        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
275        data.writeInt32((int32_t)node);
276        data.writeInt32(port_index);
277        data.write(*graphicBuffer);
278        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
279
280        status_t err = reply.readInt32();
281        if (err != OK) {
282            *buffer = 0;
283
284            return err;
285        }
286
287        *buffer = (buffer_id)reply.readInt32();
288
289        return err;
290    }
291
292    virtual status_t updateGraphicBufferInMeta(
293            node_id node, OMX_U32 port_index,
294            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
295        Parcel data, reply;
296        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
297        data.writeInt32((int32_t)node);
298        data.writeInt32(port_index);
299        data.write(*graphicBuffer);
300        data.writeInt32((int32_t)buffer);
301        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
302
303        status_t err = reply.readInt32();
304        return err;
305    }
306
307    virtual status_t createInputSurface(
308            node_id node, OMX_U32 port_index,
309            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
310        Parcel data, reply;
311        status_t err;
312        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
313        data.writeInt32((int32_t)node);
314        data.writeInt32(port_index);
315        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
316        if (err != OK) {
317            ALOGW("binder transaction failed: %d", err);
318            return err;
319        }
320
321        // read type even if createInputSurface failed
322        int negotiatedType = reply.readInt32();
323        if (type != NULL) {
324            *type = (MetadataBufferType)negotiatedType;
325        }
326
327        err = reply.readInt32();
328        if (err != OK) {
329            return err;
330        }
331
332        *bufferProducer = IGraphicBufferProducer::asInterface(
333                reply.readStrongBinder());
334
335        return err;
336    }
337
338    virtual status_t createPersistentInputSurface(
339            sp<IGraphicBufferProducer> *bufferProducer,
340            sp<IGraphicBufferConsumer> *bufferConsumer) {
341        Parcel data, reply;
342        status_t err;
343        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
344        err = remote()->transact(CREATE_PERSISTENT_INPUT_SURFACE, data, &reply);
345        if (err != OK) {
346            ALOGW("binder transaction failed: %d", err);
347            return err;
348        }
349
350        err = reply.readInt32();
351        if (err != OK) {
352            return err;
353        }
354
355        *bufferProducer = IGraphicBufferProducer::asInterface(
356                reply.readStrongBinder());
357        *bufferConsumer = IGraphicBufferConsumer::asInterface(
358                reply.readStrongBinder());
359
360        return err;
361    }
362
363    virtual status_t setInputSurface(
364            node_id node, OMX_U32 port_index,
365            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
366        Parcel data, reply;
367        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
368        status_t err;
369        data.writeInt32((int32_t)node);
370        data.writeInt32(port_index);
371        data.writeStrongBinder(IInterface::asBinder(bufferConsumer));
372
373        err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
374
375        if (err != OK) {
376            ALOGW("binder transaction failed: %d", err);
377            return err;
378        }
379
380        // read type even if setInputSurface failed
381        int negotiatedType = reply.readInt32();
382        if (type != NULL) {
383            *type = (MetadataBufferType)negotiatedType;
384        }
385
386        return reply.readInt32();
387    }
388
389    virtual status_t signalEndOfInputStream(node_id node) {
390        Parcel data, reply;
391        status_t err;
392        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
393        data.writeInt32((int32_t)node);
394        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
395        if (err != OK) {
396            ALOGW("binder transaction failed: %d", err);
397            return err;
398        }
399
400        return reply.readInt32();
401    }
402
403    virtual status_t storeMetaDataInBuffers(
404            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
405        Parcel data, reply;
406        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
407        data.writeInt32((int32_t)node);
408        data.writeInt32(port_index);
409        data.writeInt32((uint32_t)enable);
410        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
411
412        // read type even storeMetaDataInBuffers failed
413        int negotiatedType = reply.readInt32();
414        if (type != NULL) {
415            *type = (MetadataBufferType)negotiatedType;
416        }
417
418        return reply.readInt32();
419    }
420
421    virtual status_t prepareForAdaptivePlayback(
422            node_id node, OMX_U32 port_index, OMX_BOOL enable,
423            OMX_U32 max_width, OMX_U32 max_height) {
424        Parcel data, reply;
425        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
426        data.writeInt32((int32_t)node);
427        data.writeInt32(port_index);
428        data.writeInt32((int32_t)enable);
429        data.writeInt32(max_width);
430        data.writeInt32(max_height);
431        remote()->transact(PREPARE_FOR_ADAPTIVE_PLAYBACK, data, &reply);
432
433        status_t err = reply.readInt32();
434        return err;
435    }
436
437    virtual status_t configureVideoTunnelMode(
438            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
439            OMX_U32 audioHwSync, native_handle_t **sidebandHandle ) {
440        Parcel data, reply;
441        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
442        data.writeInt32((int32_t)node);
443        data.writeInt32(portIndex);
444        data.writeInt32((int32_t)tunneled);
445        data.writeInt32(audioHwSync);
446        remote()->transact(CONFIGURE_VIDEO_TUNNEL_MODE, data, &reply);
447
448        status_t err = reply.readInt32();
449        if (sidebandHandle) {
450            *sidebandHandle = (native_handle_t *)reply.readNativeHandle();
451        }
452        return err;
453    }
454
455
456    virtual status_t allocateBuffer(
457            node_id node, OMX_U32 port_index, size_t size,
458            buffer_id *buffer, void **buffer_data) {
459        Parcel data, reply;
460        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
461        data.writeInt32((int32_t)node);
462        data.writeInt32(port_index);
463        data.writeInt64(size);
464        remote()->transact(ALLOC_BUFFER, data, &reply);
465
466        status_t err = reply.readInt32();
467        if (err != OK) {
468            *buffer = 0;
469
470            return err;
471        }
472
473        *buffer = (buffer_id)reply.readInt32();
474        *buffer_data = (void *)reply.readInt64();
475
476        return err;
477    }
478
479    virtual status_t allocateBufferWithBackup(
480            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
481            buffer_id *buffer, OMX_U32 allottedSize) {
482        Parcel data, reply;
483        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
484        data.writeInt32((int32_t)node);
485        data.writeInt32(port_index);
486        data.writeStrongBinder(IInterface::asBinder(params));
487        data.writeInt32(allottedSize);
488        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
489
490        status_t err = reply.readInt32();
491        if (err != OK) {
492            *buffer = 0;
493
494            return err;
495        }
496
497        *buffer = (buffer_id)reply.readInt32();
498
499        return err;
500    }
501
502    virtual status_t freeBuffer(
503            node_id node, OMX_U32 port_index, buffer_id buffer) {
504        Parcel data, reply;
505        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
506        data.writeInt32((int32_t)node);
507        data.writeInt32(port_index);
508        data.writeInt32((int32_t)buffer);
509        remote()->transact(FREE_BUFFER, data, &reply);
510
511        return reply.readInt32();
512    }
513
514    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
515        Parcel data, reply;
516        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
517        data.writeInt32((int32_t)node);
518        data.writeInt32((int32_t)buffer);
519        data.writeInt32(fenceFd >= 0);
520        if (fenceFd >= 0) {
521            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
522        }
523        remote()->transact(FILL_BUFFER, data, &reply);
524
525        return reply.readInt32();
526    }
527
528    virtual status_t emptyBuffer(
529            node_id node,
530            buffer_id buffer,
531            OMX_U32 range_offset, OMX_U32 range_length,
532            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
533        Parcel data, reply;
534        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
535        data.writeInt32((int32_t)node);
536        data.writeInt32((int32_t)buffer);
537        data.writeInt32(range_offset);
538        data.writeInt32(range_length);
539        data.writeInt32(flags);
540        data.writeInt64(timestamp);
541        data.writeInt32(fenceFd >= 0);
542        if (fenceFd >= 0) {
543            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
544        }
545        remote()->transact(EMPTY_BUFFER, data, &reply);
546
547        return reply.readInt32();
548    }
549
550    virtual status_t getExtensionIndex(
551            node_id node,
552            const char *parameter_name,
553            OMX_INDEXTYPE *index) {
554        Parcel data, reply;
555        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
556        data.writeInt32((int32_t)node);
557        data.writeCString(parameter_name);
558
559        remote()->transact(GET_EXTENSION_INDEX, data, &reply);
560
561        status_t err = reply.readInt32();
562        if (err == OK) {
563            *index = static_cast<OMX_INDEXTYPE>(reply.readInt32());
564        } else {
565            *index = OMX_IndexComponentStartUnused;
566        }
567
568        return err;
569    }
570
571    virtual status_t setInternalOption(
572            node_id node,
573            OMX_U32 port_index,
574            InternalOptionType type,
575            const void *optionData,
576            size_t size) {
577        Parcel data, reply;
578        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
579        data.writeInt32((int32_t)node);
580        data.writeInt32(port_index);
581        data.writeInt64(size);
582        data.write(optionData, size);
583        data.writeInt32(type);
584        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
585
586        return reply.readInt32();
587    }
588};
589
590IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
591
592////////////////////////////////////////////////////////////////////////////////
593
594#define CHECK_OMX_INTERFACE(interface, data, reply) \
595        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
596            ALOGW("Call incorrectly routed to " #interface); \
597            return PERMISSION_DENIED; \
598        } } while (0)
599
600status_t BnOMX::onTransact(
601    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
602    switch (code) {
603        case LIVES_LOCALLY:
604        {
605            CHECK_OMX_INTERFACE(IOMX, data, reply);
606            node_id node = (node_id)data.readInt32();
607            pid_t pid = (pid_t)data.readInt32();
608            reply->writeInt32(livesLocally(node, pid));
609
610            return OK;
611        }
612
613        case LIST_NODES:
614        {
615            CHECK_OMX_INTERFACE(IOMX, data, reply);
616
617            List<ComponentInfo> list;
618            listNodes(&list);
619
620            reply->writeInt32(list.size());
621            for (List<ComponentInfo>::iterator it = list.begin();
622                 it != list.end(); ++it) {
623                ComponentInfo &cur = *it;
624
625                reply->writeString8(cur.mName);
626                reply->writeInt32(cur.mRoles.size());
627                for (List<String8>::iterator role_it = cur.mRoles.begin();
628                     role_it != cur.mRoles.end(); ++role_it) {
629                    reply->writeString8(*role_it);
630                }
631            }
632
633            return NO_ERROR;
634        }
635
636        case ALLOCATE_NODE:
637        {
638            CHECK_OMX_INTERFACE(IOMX, data, reply);
639
640            const char *name = data.readCString();
641
642            sp<IOMXObserver> observer =
643                interface_cast<IOMXObserver>(data.readStrongBinder());
644
645            node_id node;
646
647            status_t err = allocateNode(name, observer, &node);
648            reply->writeInt32(err);
649            if (err == OK) {
650                reply->writeInt32((int32_t)node);
651            }
652
653            return NO_ERROR;
654        }
655
656        case FREE_NODE:
657        {
658            CHECK_OMX_INTERFACE(IOMX, data, reply);
659
660            node_id node = (node_id)data.readInt32();
661
662            reply->writeInt32(freeNode(node));
663
664            return NO_ERROR;
665        }
666
667        case SEND_COMMAND:
668        {
669            CHECK_OMX_INTERFACE(IOMX, data, reply);
670
671            node_id node = (node_id)data.readInt32();
672
673            OMX_COMMANDTYPE cmd =
674                static_cast<OMX_COMMANDTYPE>(data.readInt32());
675
676            OMX_S32 param = data.readInt32();
677            reply->writeInt32(sendCommand(node, cmd, param));
678
679            return NO_ERROR;
680        }
681
682        case GET_PARAMETER:
683        case SET_PARAMETER:
684        case GET_CONFIG:
685        case SET_CONFIG:
686        case SET_INTERNAL_OPTION:
687        {
688            CHECK_OMX_INTERFACE(IOMX, data, reply);
689
690            node_id node = (node_id)data.readInt32();
691            OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
692
693            size_t size = data.readInt64();
694
695            void *params = malloc(size);
696            data.read(params, size);
697
698            status_t err;
699            switch (code) {
700                case GET_PARAMETER:
701                    err = getParameter(node, index, params, size);
702                    break;
703                case SET_PARAMETER:
704                    err = setParameter(node, index, params, size);
705                    break;
706                case GET_CONFIG:
707                    err = getConfig(node, index, params, size);
708                    break;
709                case SET_CONFIG:
710                    err = setConfig(node, index, params, size);
711                    break;
712                case SET_INTERNAL_OPTION:
713                {
714                    InternalOptionType type =
715                        (InternalOptionType)data.readInt32();
716
717                    err = setInternalOption(node, index, type, params, size);
718                    break;
719                }
720
721                default:
722                    TRESPASS();
723            }
724
725            reply->writeInt32(err);
726
727            if ((code == GET_PARAMETER || code == GET_CONFIG) && err == OK) {
728                reply->write(params, size);
729            }
730
731            free(params);
732            params = NULL;
733
734            return NO_ERROR;
735        }
736
737        case GET_STATE:
738        {
739            CHECK_OMX_INTERFACE(IOMX, data, reply);
740
741            node_id node = (node_id)data.readInt32();
742            OMX_STATETYPE state = OMX_StateInvalid;
743
744            status_t err = getState(node, &state);
745            reply->writeInt32(state);
746            reply->writeInt32(err);
747
748            return NO_ERROR;
749        }
750
751        case ENABLE_GRAPHIC_BUFFERS:
752        {
753            CHECK_OMX_INTERFACE(IOMX, data, reply);
754
755            node_id node = (node_id)data.readInt32();
756            OMX_U32 port_index = data.readInt32();
757            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
758
759            status_t err = enableGraphicBuffers(node, port_index, enable);
760            reply->writeInt32(err);
761
762            return NO_ERROR;
763        }
764
765        case GET_GRAPHIC_BUFFER_USAGE:
766        {
767            CHECK_OMX_INTERFACE(IOMX, data, reply);
768
769            node_id node = (node_id)data.readInt32();
770            OMX_U32 port_index = data.readInt32();
771
772            OMX_U32 usage = 0;
773            status_t err = getGraphicBufferUsage(node, port_index, &usage);
774            reply->writeInt32(err);
775            reply->writeInt32(usage);
776
777            return NO_ERROR;
778        }
779
780        case USE_BUFFER:
781        {
782            CHECK_OMX_INTERFACE(IOMX, data, reply);
783
784            node_id node = (node_id)data.readInt32();
785            OMX_U32 port_index = data.readInt32();
786            sp<IMemory> params =
787                interface_cast<IMemory>(data.readStrongBinder());
788            OMX_U32 allottedSize = data.readInt32();
789
790            buffer_id buffer;
791            status_t err = useBuffer(node, port_index, params, &buffer, allottedSize);
792            reply->writeInt32(err);
793
794            if (err == OK) {
795                reply->writeInt32((int32_t)buffer);
796            }
797
798            return NO_ERROR;
799        }
800
801        case USE_GRAPHIC_BUFFER:
802        {
803            CHECK_OMX_INTERFACE(IOMX, data, reply);
804
805            node_id node = (node_id)data.readInt32();
806            OMX_U32 port_index = data.readInt32();
807            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
808            data.read(*graphicBuffer);
809
810            buffer_id buffer;
811            status_t err = useGraphicBuffer(
812                    node, port_index, graphicBuffer, &buffer);
813            reply->writeInt32(err);
814
815            if (err == OK) {
816                reply->writeInt32((int32_t)buffer);
817            }
818
819            return NO_ERROR;
820        }
821
822        case UPDATE_GRAPHIC_BUFFER_IN_META:
823        {
824            CHECK_OMX_INTERFACE(IOMX, data, reply);
825
826            node_id node = (node_id)data.readInt32();
827            OMX_U32 port_index = data.readInt32();
828            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
829            data.read(*graphicBuffer);
830            buffer_id buffer = (buffer_id)data.readInt32();
831
832            status_t err = updateGraphicBufferInMeta(
833                    node, port_index, graphicBuffer, buffer);
834            reply->writeInt32(err);
835
836            return NO_ERROR;
837        }
838
839        case CREATE_INPUT_SURFACE:
840        {
841            CHECK_OMX_INTERFACE(IOMX, data, reply);
842
843            node_id node = (node_id)data.readInt32();
844            OMX_U32 port_index = data.readInt32();
845
846            sp<IGraphicBufferProducer> bufferProducer;
847            MetadataBufferType type;
848            status_t err = createInputSurface(node, port_index, &bufferProducer, &type);
849
850            reply->writeInt32(type);
851            reply->writeInt32(err);
852
853            if (err == OK) {
854                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
855            }
856
857            return NO_ERROR;
858        }
859
860        case CREATE_PERSISTENT_INPUT_SURFACE:
861        {
862            CHECK_OMX_INTERFACE(IOMX, data, reply);
863
864            sp<IGraphicBufferProducer> bufferProducer;
865            sp<IGraphicBufferConsumer> bufferConsumer;
866            status_t err = createPersistentInputSurface(
867                    &bufferProducer, &bufferConsumer);
868
869            reply->writeInt32(err);
870
871            if (err == OK) {
872                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
873                reply->writeStrongBinder(IInterface::asBinder(bufferConsumer));
874            }
875
876            return NO_ERROR;
877        }
878
879        case SET_INPUT_SURFACE:
880        {
881            CHECK_OMX_INTERFACE(IOMX, data, reply);
882
883            node_id node = (node_id)data.readInt32();
884            OMX_U32 port_index = data.readInt32();
885
886            sp<IGraphicBufferConsumer> bufferConsumer =
887                    interface_cast<IGraphicBufferConsumer>(data.readStrongBinder());
888
889            MetadataBufferType type;
890            status_t err = setInputSurface(node, port_index, bufferConsumer, &type);
891
892            reply->writeInt32(type);
893            reply->writeInt32(err);
894            return NO_ERROR;
895        }
896
897        case SIGNAL_END_OF_INPUT_STREAM:
898        {
899            CHECK_OMX_INTERFACE(IOMX, data, reply);
900
901            node_id node = (node_id)data.readInt32();
902
903            status_t err = signalEndOfInputStream(node);
904            reply->writeInt32(err);
905
906            return NO_ERROR;
907        }
908
909        case STORE_META_DATA_IN_BUFFERS:
910        {
911            CHECK_OMX_INTERFACE(IOMX, data, reply);
912
913            node_id node = (node_id)data.readInt32();
914            OMX_U32 port_index = data.readInt32();
915            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
916
917            MetadataBufferType type;
918            status_t err = storeMetaDataInBuffers(node, port_index, enable, &type);
919            reply->writeInt32(type);
920            reply->writeInt32(err);
921
922            return NO_ERROR;
923        }
924
925        case PREPARE_FOR_ADAPTIVE_PLAYBACK:
926        {
927            CHECK_OMX_INTERFACE(IOMX, data, reply);
928
929            node_id node = (node_id)data.readInt32();
930            OMX_U32 port_index = data.readInt32();
931            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
932            OMX_U32 max_width = data.readInt32();
933            OMX_U32 max_height = data.readInt32();
934
935            status_t err = prepareForAdaptivePlayback(
936                    node, port_index, enable, max_width, max_height);
937            reply->writeInt32(err);
938
939            return NO_ERROR;
940        }
941
942        case CONFIGURE_VIDEO_TUNNEL_MODE:
943        {
944            CHECK_OMX_INTERFACE(IOMX, data, reply);
945
946            node_id node = (node_id)data.readInt32();
947            OMX_U32 port_index = data.readInt32();
948            OMX_BOOL tunneled = (OMX_BOOL)data.readInt32();
949            OMX_U32 audio_hw_sync = data.readInt32();
950
951            native_handle_t *sideband_handle;
952            status_t err = configureVideoTunnelMode(
953                    node, port_index, tunneled, audio_hw_sync, &sideband_handle);
954            reply->writeInt32(err);
955            reply->writeNativeHandle(sideband_handle);
956
957            return NO_ERROR;
958        }
959
960        case ALLOC_BUFFER:
961        {
962            CHECK_OMX_INTERFACE(IOMX, data, reply);
963
964            node_id node = (node_id)data.readInt32();
965            OMX_U32 port_index = data.readInt32();
966            size_t size = data.readInt64();
967
968            buffer_id buffer;
969            void *buffer_data;
970            status_t err = allocateBuffer(
971                    node, port_index, size, &buffer, &buffer_data);
972            reply->writeInt32(err);
973
974            if (err == OK) {
975                reply->writeInt32((int32_t)buffer);
976                reply->writeInt64((uintptr_t)buffer_data);
977            }
978
979            return NO_ERROR;
980        }
981
982        case ALLOC_BUFFER_WITH_BACKUP:
983        {
984            CHECK_OMX_INTERFACE(IOMX, data, reply);
985
986            node_id node = (node_id)data.readInt32();
987            OMX_U32 port_index = data.readInt32();
988            sp<IMemory> params =
989                interface_cast<IMemory>(data.readStrongBinder());
990            OMX_U32 allottedSize = data.readInt32();
991
992            buffer_id buffer;
993            status_t err = allocateBufferWithBackup(
994                    node, port_index, params, &buffer, allottedSize);
995
996            reply->writeInt32(err);
997
998            if (err == OK) {
999                reply->writeInt32((int32_t)buffer);
1000            }
1001
1002            return NO_ERROR;
1003        }
1004
1005        case FREE_BUFFER:
1006        {
1007            CHECK_OMX_INTERFACE(IOMX, data, reply);
1008
1009            node_id node = (node_id)data.readInt32();
1010            OMX_U32 port_index = data.readInt32();
1011            buffer_id buffer = (buffer_id)data.readInt32();
1012            reply->writeInt32(freeBuffer(node, port_index, buffer));
1013
1014            return NO_ERROR;
1015        }
1016
1017        case FILL_BUFFER:
1018        {
1019            CHECK_OMX_INTERFACE(IOMX, data, reply);
1020
1021            node_id node = (node_id)data.readInt32();
1022            buffer_id buffer = (buffer_id)data.readInt32();
1023            bool haveFence = data.readInt32();
1024            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1025            reply->writeInt32(fillBuffer(node, buffer, fenceFd));
1026
1027            return NO_ERROR;
1028        }
1029
1030        case EMPTY_BUFFER:
1031        {
1032            CHECK_OMX_INTERFACE(IOMX, data, reply);
1033
1034            node_id node = (node_id)data.readInt32();
1035            buffer_id buffer = (buffer_id)data.readInt32();
1036            OMX_U32 range_offset = data.readInt32();
1037            OMX_U32 range_length = data.readInt32();
1038            OMX_U32 flags = data.readInt32();
1039            OMX_TICKS timestamp = data.readInt64();
1040            bool haveFence = data.readInt32();
1041            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1042            reply->writeInt32(emptyBuffer(
1043                    node, buffer, range_offset, range_length, flags, timestamp, fenceFd));
1044
1045            return NO_ERROR;
1046        }
1047
1048        case GET_EXTENSION_INDEX:
1049        {
1050            CHECK_OMX_INTERFACE(IOMX, data, reply);
1051
1052            node_id node = (node_id)data.readInt32();
1053            const char *parameter_name = data.readCString();
1054
1055            OMX_INDEXTYPE index;
1056            status_t err = getExtensionIndex(node, parameter_name, &index);
1057
1058            reply->writeInt32(err);
1059
1060            if (err == OK) {
1061                reply->writeInt32(index);
1062            }
1063
1064            return OK;
1065        }
1066
1067        default:
1068            return BBinder::onTransact(code, data, reply, flags);
1069    }
1070}
1071
1072////////////////////////////////////////////////////////////////////////////////
1073
1074class BpOMXObserver : public BpInterface<IOMXObserver> {
1075public:
1076    BpOMXObserver(const sp<IBinder> &impl)
1077        : BpInterface<IOMXObserver>(impl) {
1078    }
1079
1080    virtual void onMessages(const std::list<omx_message> &messages) {
1081        Parcel data, reply;
1082        std::list<omx_message>::const_iterator it = messages.cbegin();
1083        bool first = true;
1084        while (it != messages.cend()) {
1085            const omx_message &msg = *it++;
1086            if (first) {
1087                data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
1088                data.writeInt32(msg.node);
1089                first = false;
1090            }
1091            data.writeInt32(msg.fenceFd >= 0);
1092            if (msg.fenceFd >= 0) {
1093                data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
1094            }
1095            data.writeInt32(msg.type);
1096            data.write(&msg.u, sizeof(msg.u));
1097            ALOGV("onMessage writing message %d, size %zu", msg.type, sizeof(msg));
1098        }
1099        if (!first) {
1100            data.writeInt32(-1); // mark end
1101            remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
1102        }
1103    }
1104};
1105
1106IMPLEMENT_META_INTERFACE(OMXObserver, "android.hardware.IOMXObserver");
1107
1108status_t BnOMXObserver::onTransact(
1109    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
1110    switch (code) {
1111        case OBSERVER_ON_MSG:
1112        {
1113            CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
1114            IOMX::node_id node = data.readInt32();
1115            std::list<omx_message> messages;
1116            status_t err = FAILED_TRANSACTION; // must receive at least one message
1117            do {
1118                int haveFence = data.readInt32();
1119                if (haveFence < 0) { // we use -1 to mark end of messages
1120                    break;
1121                }
1122                omx_message msg;
1123                msg.node = node;
1124                msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1125                msg.type = (typeof(msg.type))data.readInt32();
1126                err = data.read(&msg.u, sizeof(msg.u));
1127                ALOGV("onTransact reading message %d, size %zu", msg.type, sizeof(msg));
1128                messages.push_back(msg);
1129            } while (err == OK);
1130
1131            if (err == OK) {
1132                onMessages(messages);
1133            }
1134
1135            return err;
1136        }
1137
1138        default:
1139            return BBinder::onTransact(code, data, reply, flags);
1140    }
1141}
1142
1143}  // namespace android
1144