IOMX.cpp revision 51f59b41eae9c4f493ebfd0972cee951895bdf19 
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 <sys/mman.h>
22
23#include <binder/IMemory.h>
24#include <binder/Parcel.h>
25#include <media/IOMX.h>
26#include <media/stagefright/foundation/ADebug.h>
27
28namespace android {
29
30enum {
31    CONNECT = IBinder::FIRST_CALL_TRANSACTION,
32    LIVES_LOCALLY,
33    LIST_NODES,
34    ALLOCATE_NODE,
35    FREE_NODE,
36    SEND_COMMAND,
37    GET_PARAMETER,
38    SET_PARAMETER,
39    GET_CONFIG,
40    SET_CONFIG,
41    GET_STATE,
42    ENABLE_GRAPHIC_BUFFERS,
43    USE_BUFFER,
44    USE_GRAPHIC_BUFFER,
45    CREATE_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};
60
61class BpOMX : public BpInterface<IOMX> {
62public:
63    BpOMX(const sp<IBinder> &impl)
64        : BpInterface<IOMX>(impl) {
65    }
66
67    virtual bool livesLocally(node_id node, pid_t pid) {
68        Parcel data, reply;
69        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
70        data.writeIntPtr((intptr_t)node);
71        data.writeInt32(pid);
72        remote()->transact(LIVES_LOCALLY, data, &reply);
73
74        return reply.readInt32() != 0;
75    }
76
77    virtual status_t listNodes(List<ComponentInfo> *list) {
78        list->clear();
79
80        Parcel data, reply;
81        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
82        remote()->transact(LIST_NODES, data, &reply);
83
84        int32_t n = reply.readInt32();
85        for (int32_t i = 0; i < n; ++i) {
86            list->push_back(ComponentInfo());
87            ComponentInfo &info = *--list->end();
88
89            info.mName = reply.readString8();
90            int32_t numRoles = reply.readInt32();
91            for (int32_t j = 0; j < numRoles; ++j) {
92                info.mRoles.push_back(reply.readString8());
93            }
94        }
95
96        return OK;
97    }
98
99    virtual status_t allocateNode(
100            const char *name, const sp<IOMXObserver> &observer, node_id *node) {
101        Parcel data, reply;
102        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
103        data.writeCString(name);
104        data.writeStrongBinder(observer->asBinder());
105        remote()->transact(ALLOCATE_NODE, data, &reply);
106
107        status_t err = reply.readInt32();
108        if (err == OK) {
109            *node = (void*)reply.readIntPtr();
110        } else {
111            *node = 0;
112        }
113
114        return err;
115    }
116
117    virtual status_t freeNode(node_id node) {
118        Parcel data, reply;
119        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
120        data.writeIntPtr((intptr_t)node);
121        remote()->transact(FREE_NODE, data, &reply);
122
123        return reply.readInt32();
124    }
125
126    virtual status_t sendCommand(
127            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
128        Parcel data, reply;
129        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
130        data.writeIntPtr((intptr_t)node);
131        data.writeInt32(cmd);
132        data.writeInt32(param);
133        remote()->transact(SEND_COMMAND, data, &reply);
134
135        return reply.readInt32();
136    }
137
138    virtual status_t getParameter(
139            node_id node, OMX_INDEXTYPE index,
140            void *params, size_t size) {
141        Parcel data, reply;
142        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
143        data.writeIntPtr((intptr_t)node);
144        data.writeInt32(index);
145        data.writeInt32(size);
146        data.write(params, size);
147        remote()->transact(GET_PARAMETER, data, &reply);
148
149        status_t err = reply.readInt32();
150        if (err != OK) {
151            return err;
152        }
153
154        reply.read(params, size);
155
156        return OK;
157    }
158
159    virtual status_t setParameter(
160            node_id node, OMX_INDEXTYPE index,
161            const void *params, size_t size) {
162        Parcel data, reply;
163        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
164        data.writeIntPtr((intptr_t)node);
165        data.writeInt32(index);
166        data.writeInt32(size);
167        data.write(params, size);
168        remote()->transact(SET_PARAMETER, data, &reply);
169
170        return reply.readInt32();
171    }
172
173    virtual status_t getConfig(
174            node_id node, OMX_INDEXTYPE index,
175            void *params, size_t size) {
176        Parcel data, reply;
177        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
178        data.writeIntPtr((intptr_t)node);
179        data.writeInt32(index);
180        data.writeInt32(size);
181        data.write(params, size);
182        remote()->transact(GET_CONFIG, data, &reply);
183
184        status_t err = reply.readInt32();
185        if (err != OK) {
186            return err;
187        }
188
189        reply.read(params, size);
190
191        return OK;
192    }
193
194    virtual status_t setConfig(
195            node_id node, OMX_INDEXTYPE index,
196            const void *params, size_t size) {
197        Parcel data, reply;
198        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
199        data.writeIntPtr((intptr_t)node);
200        data.writeInt32(index);
201        data.writeInt32(size);
202        data.write(params, size);
203        remote()->transact(SET_CONFIG, data, &reply);
204
205        return reply.readInt32();
206    }
207
208    virtual status_t getState(
209            node_id node, OMX_STATETYPE* state) {
210        Parcel data, reply;
211        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
212        data.writeIntPtr((intptr_t)node);
213        remote()->transact(GET_STATE, data, &reply);
214
215        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
216        return reply.readInt32();
217    }
218
219    virtual status_t enableGraphicBuffers(
220            node_id node, OMX_U32 port_index, OMX_BOOL enable) {
221        Parcel data, reply;
222        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
223        data.writeIntPtr((intptr_t)node);
224        data.writeInt32(port_index);
225        data.writeInt32((uint32_t)enable);
226        remote()->transact(ENABLE_GRAPHIC_BUFFERS, data, &reply);
227
228        status_t err = reply.readInt32();
229        return err;
230    }
231
232    virtual status_t getGraphicBufferUsage(
233            node_id node, OMX_U32 port_index, OMX_U32* usage) {
234        Parcel data, reply;
235        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
236        data.writeIntPtr((intptr_t)node);
237        data.writeInt32(port_index);
238        remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
239
240        status_t err = reply.readInt32();
241        *usage = reply.readInt32();
242        return err;
243    }
244
245    virtual status_t useBuffer(
246            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
247            buffer_id *buffer) {
248        Parcel data, reply;
249        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
250        data.writeIntPtr((intptr_t)node);
251        data.writeInt32(port_index);
252        data.writeStrongBinder(params->asBinder());
253        remote()->transact(USE_BUFFER, data, &reply);
254
255        status_t err = reply.readInt32();
256        if (err != OK) {
257            *buffer = 0;
258
259            return err;
260        }
261
262        *buffer = (void*)reply.readIntPtr();
263
264        return err;
265    }
266
267
268    virtual status_t useGraphicBuffer(
269            node_id node, OMX_U32 port_index,
270            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
271        Parcel data, reply;
272        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
273        data.writeIntPtr((intptr_t)node);
274        data.writeInt32(port_index);
275        data.write(*graphicBuffer);
276        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
277
278        status_t err = reply.readInt32();
279        if (err != OK) {
280            *buffer = 0;
281
282            return err;
283        }
284
285        *buffer = (void*)reply.readIntPtr();
286
287        return err;
288    }
289
290    virtual status_t updateGraphicBufferInMeta(
291            node_id node, OMX_U32 port_index,
292            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
293        Parcel data, reply;
294        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
295        data.writeIntPtr((intptr_t)node);
296        data.writeInt32(port_index);
297        data.write(*graphicBuffer);
298        data.writeIntPtr((intptr_t)buffer);
299        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
300
301        status_t err = reply.readInt32();
302        return err;
303    }
304
305    virtual status_t createInputSurface(
306            node_id node, OMX_U32 port_index,
307            sp<IGraphicBufferProducer> *bufferProducer) {
308        Parcel data, reply;
309        status_t err;
310        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
311        data.writeIntPtr((intptr_t)node);
312        data.writeInt32(port_index);
313        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
314        if (err != OK) {
315            ALOGW("binder transaction failed: %d", err);
316            return err;
317        }
318
319        err = reply.readInt32();
320        if (err != OK) {
321            return err;
322        }
323
324        *bufferProducer = IGraphicBufferProducer::asInterface(
325                reply.readStrongBinder());
326
327        return err;
328    }
329
330    virtual status_t signalEndOfInputStream(node_id node) {
331        Parcel data, reply;
332        status_t err;
333        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
334        data.writeIntPtr((intptr_t)node);
335        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
336        if (err != OK) {
337            ALOGW("binder transaction failed: %d", err);
338            return err;
339        }
340
341        return reply.readInt32();
342    }
343
344    virtual status_t storeMetaDataInBuffers(
345            node_id node, OMX_U32 port_index, OMX_BOOL enable) {
346        Parcel data, reply;
347        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
348        data.writeIntPtr((intptr_t)node);
349        data.writeInt32(port_index);
350        data.writeInt32((uint32_t)enable);
351        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
352
353        status_t err = reply.readInt32();
354        return err;
355    }
356
357    virtual status_t prepareForAdaptivePlayback(
358            node_id node, OMX_U32 port_index, OMX_BOOL enable,
359            OMX_U32 max_width, OMX_U32 max_height) {
360        Parcel data, reply;
361        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
362        data.writeIntPtr((intptr_t)node);
363        data.writeInt32(port_index);
364        data.writeInt32((int32_t)enable);
365        data.writeInt32(max_width);
366        data.writeInt32(max_height);
367        remote()->transact(PREPARE_FOR_ADAPTIVE_PLAYBACK, data, &reply);
368
369        status_t err = reply.readInt32();
370        return err;
371    }
372
373    virtual status_t allocateBuffer(
374            node_id node, OMX_U32 port_index, size_t size,
375            buffer_id *buffer, void **buffer_data) {
376        Parcel data, reply;
377        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
378        data.writeIntPtr((intptr_t)node);
379        data.writeInt32(port_index);
380        data.writeInt32(size);
381        remote()->transact(ALLOC_BUFFER, data, &reply);
382
383        status_t err = reply.readInt32();
384        if (err != OK) {
385            *buffer = 0;
386
387            return err;
388        }
389
390        *buffer = (void *)reply.readIntPtr();
391        *buffer_data = (void *)reply.readIntPtr();
392
393        return err;
394    }
395
396    virtual status_t allocateBufferWithBackup(
397            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
398            buffer_id *buffer) {
399        Parcel data, reply;
400        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
401        data.writeIntPtr((intptr_t)node);
402        data.writeInt32(port_index);
403        data.writeStrongBinder(params->asBinder());
404        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
405
406        status_t err = reply.readInt32();
407        if (err != OK) {
408            *buffer = 0;
409
410            return err;
411        }
412
413        *buffer = (void*)reply.readIntPtr();
414
415        return err;
416    }
417
418    virtual status_t freeBuffer(
419            node_id node, OMX_U32 port_index, buffer_id buffer) {
420        Parcel data, reply;
421        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
422        data.writeIntPtr((intptr_t)node);
423        data.writeInt32(port_index);
424        data.writeIntPtr((intptr_t)buffer);
425        remote()->transact(FREE_BUFFER, data, &reply);
426
427        return reply.readInt32();
428    }
429
430    virtual status_t fillBuffer(node_id node, buffer_id buffer) {
431        Parcel data, reply;
432        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
433        data.writeIntPtr((intptr_t)node);
434        data.writeIntPtr((intptr_t)buffer);
435        remote()->transact(FILL_BUFFER, data, &reply);
436
437        return reply.readInt32();
438    }
439
440    virtual status_t emptyBuffer(
441            node_id node,
442            buffer_id buffer,
443            OMX_U32 range_offset, OMX_U32 range_length,
444            OMX_U32 flags, OMX_TICKS timestamp) {
445        Parcel data, reply;
446        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
447        data.writeIntPtr((intptr_t)node);
448        data.writeIntPtr((intptr_t)buffer);
449        data.writeInt32(range_offset);
450        data.writeInt32(range_length);
451        data.writeInt32(flags);
452        data.writeInt64(timestamp);
453        remote()->transact(EMPTY_BUFFER, data, &reply);
454
455        return reply.readInt32();
456    }
457
458    virtual status_t getExtensionIndex(
459            node_id node,
460            const char *parameter_name,
461            OMX_INDEXTYPE *index) {
462        Parcel data, reply;
463        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
464        data.writeIntPtr((intptr_t)node);
465        data.writeCString(parameter_name);
466
467        remote()->transact(GET_EXTENSION_INDEX, data, &reply);
468
469        status_t err = reply.readInt32();
470        if (err == OK) {
471            *index = static_cast<OMX_INDEXTYPE>(reply.readInt32());
472        } else {
473            *index = OMX_IndexComponentStartUnused;
474        }
475
476        return err;
477    }
478
479    virtual status_t setInternalOption(
480            node_id node,
481            OMX_U32 port_index,
482            InternalOptionType type,
483            const void *optionData,
484            size_t size) {
485        Parcel data, reply;
486        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
487        data.writeIntPtr((intptr_t)node);
488        data.writeInt32(port_index);
489        data.writeInt32(size);
490        data.write(optionData, size);
491        data.writeInt32(type);
492        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
493
494        return reply.readInt32();
495    }
496};
497
498IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
499
500////////////////////////////////////////////////////////////////////////////////
501
502#define CHECK_OMX_INTERFACE(interface, data, reply) \
503        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
504            ALOGW("Call incorrectly routed to " #interface); \
505            return PERMISSION_DENIED; \
506        } } while (0)
507
508status_t BnOMX::onTransact(
509    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
510    switch (code) {
511        case LIVES_LOCALLY:
512        {
513            CHECK_OMX_INTERFACE(IOMX, data, reply);
514            node_id node = (void *)data.readIntPtr();
515            pid_t pid = (pid_t)data.readInt32();
516            reply->writeInt32(livesLocally(node, pid));
517
518            return OK;
519        }
520
521        case LIST_NODES:
522        {
523            CHECK_OMX_INTERFACE(IOMX, data, reply);
524
525            List<ComponentInfo> list;
526            listNodes(&list);
527
528            reply->writeInt32(list.size());
529            for (List<ComponentInfo>::iterator it = list.begin();
530                 it != list.end(); ++it) {
531                ComponentInfo &cur = *it;
532
533                reply->writeString8(cur.mName);
534                reply->writeInt32(cur.mRoles.size());
535                for (List<String8>::iterator role_it = cur.mRoles.begin();
536                     role_it != cur.mRoles.end(); ++role_it) {
537                    reply->writeString8(*role_it);
538                }
539            }
540
541            return NO_ERROR;
542        }
543
544        case ALLOCATE_NODE:
545        {
546            CHECK_OMX_INTERFACE(IOMX, data, reply);
547
548            const char *name = data.readCString();
549
550            sp<IOMXObserver> observer =
551                interface_cast<IOMXObserver>(data.readStrongBinder());
552
553            node_id node;
554
555            status_t err = allocateNode(name, observer, &node);
556            reply->writeInt32(err);
557            if (err == OK) {
558                reply->writeIntPtr((intptr_t)node);
559            }
560
561            return NO_ERROR;
562        }
563
564        case FREE_NODE:
565        {
566            CHECK_OMX_INTERFACE(IOMX, data, reply);
567
568            node_id node = (void*)data.readIntPtr();
569
570            reply->writeInt32(freeNode(node));
571
572            return NO_ERROR;
573        }
574
575        case SEND_COMMAND:
576        {
577            CHECK_OMX_INTERFACE(IOMX, data, reply);
578
579            node_id node = (void*)data.readIntPtr();
580
581            OMX_COMMANDTYPE cmd =
582                static_cast<OMX_COMMANDTYPE>(data.readInt32());
583
584            OMX_S32 param = data.readInt32();
585            reply->writeInt32(sendCommand(node, cmd, param));
586
587            return NO_ERROR;
588        }
589
590        case GET_PARAMETER:
591        case SET_PARAMETER:
592        case GET_CONFIG:
593        case SET_CONFIG:
594        case SET_INTERNAL_OPTION:
595        {
596            CHECK_OMX_INTERFACE(IOMX, data, reply);
597
598            node_id node = (void*)data.readIntPtr();
599            OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
600
601            size_t size = data.readInt32();
602
603            status_t err = NOT_ENOUGH_DATA;
604            void *params = NULL;
605            size_t pageSize = 0;
606            size_t allocSize = 0;
607            if (code != SET_INTERNAL_OPTION && size < 8) {
608                // we expect the structure to contain at least the size and
609                // version, 8 bytes total
610                ALOGE("b/27207275 (%zu)", size);
611                android_errorWriteLog(0x534e4554, "27207275");
612            } else {
613                err = NO_MEMORY;
614                pageSize = (size_t) sysconf(_SC_PAGE_SIZE);
615                if (size > SIZE_MAX - (pageSize * 2)) {
616                    ALOGE("requested param size too big");
617                } else {
618                    allocSize = (size + pageSize * 2) & ~(pageSize - 1);
619                    params = mmap(NULL, allocSize, PROT_READ | PROT_WRITE,
620                            MAP_PRIVATE | MAP_ANONYMOUS, -1 /* fd */, 0 /* offset */);
621                }
622                if (params != MAP_FAILED) {
623                    err = data.read(params, size);
624                    if (err != OK) {
625                        android_errorWriteLog(0x534e4554, "26914474");
626                    } else {
627                        err = NOT_ENOUGH_DATA;
628                        OMX_U32 declaredSize = *(OMX_U32*)params;
629                        if (code != SET_INTERNAL_OPTION && declaredSize > size) {
630                            // the buffer says it's bigger than it actually is
631                            ALOGE("b/27207275 (%u/%zu)", declaredSize, size);
632                            android_errorWriteLog(0x534e4554, "27207275");
633                        } else {
634                            // mark the last page as inaccessible, to avoid exploitation
635                            // of codecs that access past the end of the allocation because
636                            // they didn't check the size
637                            mprotect((char*)params + allocSize - pageSize, pageSize, PROT_NONE);
638                            switch (code) {
639                                case GET_PARAMETER:
640                                    err = getParameter(node, index, params, size);
641                                    break;
642                                case SET_PARAMETER:
643                                    err = setParameter(node, index, params, size);
644                                    break;
645                                case GET_CONFIG:
646                                    err = getConfig(node, index, params, size);
647                                    break;
648                                case SET_CONFIG:
649                                    err = setConfig(node, index, params, size);
650                                    break;
651                                case SET_INTERNAL_OPTION:
652                                {
653                                    InternalOptionType type =
654                                        (InternalOptionType)data.readInt32();
655
656                                    err = setInternalOption(node, index, type, params, size);
657                                    break;
658                                }
659
660                                default:
661                                    TRESPASS();
662                            }
663                        }
664                    }
665                } else {
666                    ALOGE("couldn't map: %s", strerror(errno));
667                }
668            }
669
670            reply->writeInt32(err);
671
672            if ((code == GET_PARAMETER || code == GET_CONFIG) && err == OK) {
673                reply->write(params, size);
674            }
675
676            if (params) {
677                munmap(params, allocSize);
678            }
679            params = NULL;
680
681            return NO_ERROR;
682        }
683
684        case GET_STATE:
685        {
686            CHECK_OMX_INTERFACE(IOMX, data, reply);
687
688            node_id node = (void*)data.readIntPtr();
689            OMX_STATETYPE state = OMX_StateInvalid;
690
691            status_t err = getState(node, &state);
692            reply->writeInt32(state);
693            reply->writeInt32(err);
694
695            return NO_ERROR;
696        }
697
698        case ENABLE_GRAPHIC_BUFFERS:
699        {
700            CHECK_OMX_INTERFACE(IOMX, data, reply);
701
702            node_id node = (void*)data.readIntPtr();
703            OMX_U32 port_index = data.readInt32();
704            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
705
706            status_t err = enableGraphicBuffers(node, port_index, enable);
707            reply->writeInt32(err);
708
709            return NO_ERROR;
710        }
711
712        case GET_GRAPHIC_BUFFER_USAGE:
713        {
714            CHECK_OMX_INTERFACE(IOMX, data, reply);
715
716            node_id node = (void*)data.readIntPtr();
717            OMX_U32 port_index = data.readInt32();
718
719            OMX_U32 usage = 0;
720            status_t err = getGraphicBufferUsage(node, port_index, &usage);
721            reply->writeInt32(err);
722            reply->writeInt32(usage);
723
724            return NO_ERROR;
725        }
726
727        case USE_BUFFER:
728        {
729            CHECK_OMX_INTERFACE(IOMX, data, reply);
730
731            node_id node = (void*)data.readIntPtr();
732            OMX_U32 port_index = data.readInt32();
733            sp<IMemory> params =
734                interface_cast<IMemory>(data.readStrongBinder());
735
736            buffer_id buffer;
737            status_t err = useBuffer(node, port_index, params, &buffer);
738            reply->writeInt32(err);
739
740            if (err == OK) {
741                reply->writeIntPtr((intptr_t)buffer);
742            }
743
744            return NO_ERROR;
745        }
746
747        case USE_GRAPHIC_BUFFER:
748        {
749            CHECK_OMX_INTERFACE(IOMX, data, reply);
750
751            node_id node = (void*)data.readIntPtr();
752            OMX_U32 port_index = data.readInt32();
753            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
754            data.read(*graphicBuffer);
755
756            buffer_id buffer;
757            status_t err = useGraphicBuffer(
758                    node, port_index, graphicBuffer, &buffer);
759            reply->writeInt32(err);
760
761            if (err == OK) {
762                reply->writeIntPtr((intptr_t)buffer);
763            }
764
765            return NO_ERROR;
766        }
767
768        case UPDATE_GRAPHIC_BUFFER_IN_META:
769        {
770            CHECK_OMX_INTERFACE(IOMX, data, reply);
771
772            node_id node = (void*)data.readIntPtr();
773            OMX_U32 port_index = data.readInt32();
774            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
775            data.read(*graphicBuffer);
776            buffer_id buffer = (void*)data.readIntPtr();
777
778            status_t err = updateGraphicBufferInMeta(
779                    node, port_index, graphicBuffer, buffer);
780            reply->writeInt32(err);
781
782            return NO_ERROR;
783        }
784
785        case CREATE_INPUT_SURFACE:
786        {
787            CHECK_OMX_INTERFACE(IOMX, data, reply);
788
789            node_id node = (void*)data.readIntPtr();
790            OMX_U32 port_index = data.readInt32();
791
792            sp<IGraphicBufferProducer> bufferProducer;
793            status_t err = createInputSurface(node, port_index,
794                    &bufferProducer);
795
796            reply->writeInt32(err);
797
798            if (err == OK) {
799                reply->writeStrongBinder(bufferProducer->asBinder());
800            }
801
802            return NO_ERROR;
803        }
804
805        case SIGNAL_END_OF_INPUT_STREAM:
806        {
807            CHECK_OMX_INTERFACE(IOMX, data, reply);
808
809            node_id node = (void*)data.readIntPtr();
810
811            status_t err = signalEndOfInputStream(node);
812            reply->writeInt32(err);
813
814            return NO_ERROR;
815        }
816
817        case STORE_META_DATA_IN_BUFFERS:
818        {
819            CHECK_OMX_INTERFACE(IOMX, data, reply);
820
821            node_id node = (void*)data.readIntPtr();
822            OMX_U32 port_index = data.readInt32();
823            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
824
825            status_t err = storeMetaDataInBuffers(node, port_index, enable);
826            reply->writeInt32(err);
827
828            return NO_ERROR;
829        }
830
831        case PREPARE_FOR_ADAPTIVE_PLAYBACK:
832        {
833            CHECK_OMX_INTERFACE(IOMX, data, reply);
834
835            node_id node = (void*)data.readIntPtr();
836            OMX_U32 port_index = data.readInt32();
837            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
838            OMX_U32 max_width = data.readInt32();
839            OMX_U32 max_height = data.readInt32();
840
841            status_t err = prepareForAdaptivePlayback(
842                    node, port_index, enable, max_width, max_height);
843            reply->writeInt32(err);
844
845            return NO_ERROR;
846        }
847
848        case ALLOC_BUFFER:
849        {
850            CHECK_OMX_INTERFACE(IOMX, data, reply);
851
852            node_id node = (void*)data.readIntPtr();
853            OMX_U32 port_index = data.readInt32();
854            if (!isSecure(node) || port_index != 0 /* kPortIndexInput */) {
855                ALOGE("b/24310423");
856                reply->writeInt32(INVALID_OPERATION);
857                return NO_ERROR;
858            }
859
860            size_t size = data.readInt32();
861
862            buffer_id buffer;
863            void *buffer_data;
864            status_t err = allocateBuffer(
865                    node, port_index, size, &buffer, &buffer_data);
866            reply->writeInt32(err);
867
868            if (err == OK) {
869                reply->writeIntPtr((intptr_t)buffer);
870                reply->writeIntPtr((intptr_t)buffer_data);
871            }
872
873            return NO_ERROR;
874        }
875
876        case ALLOC_BUFFER_WITH_BACKUP:
877        {
878            CHECK_OMX_INTERFACE(IOMX, data, reply);
879
880            node_id node = (void*)data.readIntPtr();
881            OMX_U32 port_index = data.readInt32();
882            sp<IMemory> params =
883                interface_cast<IMemory>(data.readStrongBinder());
884
885            buffer_id buffer;
886            status_t err = allocateBufferWithBackup(
887                    node, port_index, params, &buffer);
888
889            reply->writeInt32(err);
890
891            if (err == OK) {
892                reply->writeIntPtr((intptr_t)buffer);
893            }
894
895            return NO_ERROR;
896        }
897
898        case FREE_BUFFER:
899        {
900            CHECK_OMX_INTERFACE(IOMX, data, reply);
901
902            node_id node = (void*)data.readIntPtr();
903            OMX_U32 port_index = data.readInt32();
904            buffer_id buffer = (void*)data.readIntPtr();
905            reply->writeInt32(freeBuffer(node, port_index, buffer));
906
907            return NO_ERROR;
908        }
909
910        case FILL_BUFFER:
911        {
912            CHECK_OMX_INTERFACE(IOMX, data, reply);
913
914            node_id node = (void*)data.readIntPtr();
915            buffer_id buffer = (void*)data.readIntPtr();
916            reply->writeInt32(fillBuffer(node, buffer));
917
918            return NO_ERROR;
919        }
920
921        case EMPTY_BUFFER:
922        {
923            CHECK_OMX_INTERFACE(IOMX, data, reply);
924
925            node_id node = (void*)data.readIntPtr();
926            buffer_id buffer = (void*)data.readIntPtr();
927            OMX_U32 range_offset = data.readInt32();
928            OMX_U32 range_length = data.readInt32();
929            OMX_U32 flags = data.readInt32();
930            OMX_TICKS timestamp = data.readInt64();
931
932            reply->writeInt32(
933                    emptyBuffer(
934                        node, buffer, range_offset, range_length,
935                        flags, timestamp));
936
937            return NO_ERROR;
938        }
939
940        case GET_EXTENSION_INDEX:
941        {
942            CHECK_OMX_INTERFACE(IOMX, data, reply);
943
944            node_id node = (void*)data.readIntPtr();
945            const char *parameter_name = data.readCString();
946
947            OMX_INDEXTYPE index;
948            status_t err = getExtensionIndex(node, parameter_name, &index);
949
950            reply->writeInt32(err);
951
952            if (err == OK) {
953                reply->writeInt32(index);
954            }
955
956            return OK;
957        }
958
959        default:
960            return BBinder::onTransact(code, data, reply, flags);
961    }
962}
963
964////////////////////////////////////////////////////////////////////////////////
965
966class BpOMXObserver : public BpInterface<IOMXObserver> {
967public:
968    BpOMXObserver(const sp<IBinder> &impl)
969        : BpInterface<IOMXObserver>(impl) {
970    }
971
972    virtual void onMessage(const omx_message &msg) {
973        Parcel data, reply;
974        data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
975        data.write(&msg, sizeof(msg));
976
977        remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
978    }
979};
980
981IMPLEMENT_META_INTERFACE(OMXObserver, "android.hardware.IOMXObserver");
982
983status_t BnOMXObserver::onTransact(
984    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
985    switch (code) {
986        case OBSERVER_ON_MSG:
987        {
988            CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
989
990            omx_message msg;
991            data.read(&msg, sizeof(msg));
992
993            // XXX Could use readInplace maybe?
994            onMessage(msg);
995
996            return NO_ERROR;
997        }
998
999        default:
1000            return BBinder::onTransact(code, data, reply, flags);
1001    }
1002}
1003
1004}  // namespace android
1005