IOMX.cpp revision b53ab34b95b8633070cbef5d03162d182aac3a9a 
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#include <media/openmax/OMX_IndexExt.h>
28
29namespace android {
30
31enum {
32    CONNECT = IBinder::FIRST_CALL_TRANSACTION,
33    LIVES_LOCALLY,
34    LIST_NODES,
35    ALLOCATE_NODE,
36    FREE_NODE,
37    SEND_COMMAND,
38    GET_PARAMETER,
39    SET_PARAMETER,
40    GET_CONFIG,
41    SET_CONFIG,
42    GET_STATE,
43    ENABLE_NATIVE_BUFFERS,
44    USE_BUFFER,
45    USE_GRAPHIC_BUFFER,
46    CREATE_INPUT_SURFACE,
47    CREATE_PERSISTENT_INPUT_SURFACE,
48    SET_INPUT_SURFACE,
49    SIGNAL_END_OF_INPUT_STREAM,
50    STORE_META_DATA_IN_BUFFERS,
51    PREPARE_FOR_ADAPTIVE_PLAYBACK,
52    ALLOC_SECURE_BUFFER,
53    ALLOC_BUFFER_WITH_BACKUP,
54    FREE_BUFFER,
55    FILL_BUFFER,
56    EMPTY_BUFFER,
57    GET_EXTENSION_INDEX,
58    OBSERVER_ON_MSG,
59    GET_GRAPHIC_BUFFER_USAGE,
60    SET_INTERNAL_OPTION,
61    UPDATE_GRAPHIC_BUFFER_IN_META,
62    CONFIGURE_VIDEO_TUNNEL_MODE,
63};
64
65class BpOMX : public BpInterface<IOMX> {
66public:
67    BpOMX(const sp<IBinder> &impl)
68        : BpInterface<IOMX>(impl) {
69    }
70
71    virtual bool livesLocally(node_id node, pid_t pid) {
72        Parcel data, reply;
73        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
74        data.writeInt32((int32_t)node);
75        data.writeInt32(pid);
76        remote()->transact(LIVES_LOCALLY, data, &reply);
77
78        return reply.readInt32() != 0;
79    }
80
81    virtual status_t listNodes(List<ComponentInfo> *list) {
82        list->clear();
83
84        Parcel data, reply;
85        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
86        remote()->transact(LIST_NODES, data, &reply);
87
88        int32_t n = reply.readInt32();
89        for (int32_t i = 0; i < n; ++i) {
90            list->push_back(ComponentInfo());
91            ComponentInfo &info = *--list->end();
92
93            info.mName = reply.readString8();
94            int32_t numRoles = reply.readInt32();
95            for (int32_t j = 0; j < numRoles; ++j) {
96                info.mRoles.push_back(reply.readString8());
97            }
98        }
99
100        return OK;
101    }
102
103    virtual status_t allocateNode(
104            const char *name, const sp<IOMXObserver> &observer,
105            sp<IBinder> *nodeBinder,
106            node_id *node) {
107        Parcel data, reply;
108        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
109        data.writeCString(name);
110        data.writeStrongBinder(IInterface::asBinder(observer));
111        remote()->transact(ALLOCATE_NODE, data, &reply);
112
113        status_t err = reply.readInt32();
114        if (err == OK) {
115            *node = (node_id)reply.readInt32();
116            if (nodeBinder != NULL) {
117                *nodeBinder = remote();
118            }
119        } else {
120            *node = 0;
121        }
122
123        return err;
124    }
125
126    virtual status_t freeNode(node_id node) {
127        Parcel data, reply;
128        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
129        data.writeInt32((int32_t)node);
130        remote()->transact(FREE_NODE, data, &reply);
131
132        return reply.readInt32();
133    }
134
135    virtual status_t sendCommand(
136            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
137        Parcel data, reply;
138        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
139        data.writeInt32((int32_t)node);
140        data.writeInt32(cmd);
141        data.writeInt32(param);
142        remote()->transact(SEND_COMMAND, data, &reply);
143
144        return reply.readInt32();
145    }
146
147    virtual status_t getParameter(
148            node_id node, OMX_INDEXTYPE index,
149            void *params, size_t size) {
150        Parcel data, reply;
151        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
152        data.writeInt32((int32_t)node);
153        data.writeInt32(index);
154        data.writeInt64(size);
155        data.write(params, size);
156        remote()->transact(GET_PARAMETER, data, &reply);
157
158        status_t err = reply.readInt32();
159        if (err != OK) {
160            return err;
161        }
162
163        reply.read(params, size);
164
165        return OK;
166    }
167
168    virtual status_t setParameter(
169            node_id node, OMX_INDEXTYPE index,
170            const void *params, size_t size) {
171        Parcel data, reply;
172        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
173        data.writeInt32((int32_t)node);
174        data.writeInt32(index);
175        data.writeInt64(size);
176        data.write(params, size);
177        remote()->transact(SET_PARAMETER, data, &reply);
178
179        return reply.readInt32();
180    }
181
182    virtual status_t getConfig(
183            node_id node, OMX_INDEXTYPE index,
184            void *params, size_t size) {
185        Parcel data, reply;
186        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
187        data.writeInt32((int32_t)node);
188        data.writeInt32(index);
189        data.writeInt64(size);
190        data.write(params, size);
191        remote()->transact(GET_CONFIG, data, &reply);
192
193        status_t err = reply.readInt32();
194        if (err != OK) {
195            return err;
196        }
197
198        reply.read(params, size);
199
200        return OK;
201    }
202
203    virtual status_t setConfig(
204            node_id node, OMX_INDEXTYPE index,
205            const void *params, size_t size) {
206        Parcel data, reply;
207        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
208        data.writeInt32((int32_t)node);
209        data.writeInt32(index);
210        data.writeInt64(size);
211        data.write(params, size);
212        remote()->transact(SET_CONFIG, data, &reply);
213
214        return reply.readInt32();
215    }
216
217    virtual status_t getState(
218            node_id node, OMX_STATETYPE* state) {
219        Parcel data, reply;
220        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
221        data.writeInt32((int32_t)node);
222        remote()->transact(GET_STATE, data, &reply);
223
224        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
225        return reply.readInt32();
226    }
227
228    virtual status_t enableNativeBuffers(
229            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
230        Parcel data, reply;
231        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
232        data.writeInt32((int32_t)node);
233        data.writeInt32(port_index);
234        data.writeInt32((uint32_t)graphic);
235        data.writeInt32((uint32_t)enable);
236        remote()->transact(ENABLE_NATIVE_BUFFERS, data, &reply);
237
238        status_t err = reply.readInt32();
239        return err;
240    }
241
242    virtual status_t getGraphicBufferUsage(
243            node_id node, OMX_U32 port_index, OMX_U32* usage) {
244        Parcel data, reply;
245        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
246        data.writeInt32((int32_t)node);
247        data.writeInt32(port_index);
248        remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
249
250        status_t err = reply.readInt32();
251        *usage = reply.readInt32();
252        return err;
253    }
254
255    virtual status_t useBuffer(
256            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
257            buffer_id *buffer, OMX_U32 allottedSize) {
258        Parcel data, reply;
259        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
260        data.writeInt32((int32_t)node);
261        data.writeInt32(port_index);
262        data.writeStrongBinder(IInterface::asBinder(params));
263        data.writeInt32(allottedSize);
264        remote()->transact(USE_BUFFER, data, &reply);
265
266        status_t err = reply.readInt32();
267        if (err != OK) {
268            *buffer = 0;
269
270            return err;
271        }
272
273        *buffer = (buffer_id)reply.readInt32();
274
275        return err;
276    }
277
278
279    virtual status_t useGraphicBuffer(
280            node_id node, OMX_U32 port_index,
281            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
282        Parcel data, reply;
283        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
284        data.writeInt32((int32_t)node);
285        data.writeInt32(port_index);
286        data.write(*graphicBuffer);
287        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
288
289        status_t err = reply.readInt32();
290        if (err != OK) {
291            *buffer = 0;
292
293            return err;
294        }
295
296        *buffer = (buffer_id)reply.readInt32();
297
298        return err;
299    }
300
301    virtual status_t updateGraphicBufferInMeta(
302            node_id node, OMX_U32 port_index,
303            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
304        Parcel data, reply;
305        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
306        data.writeInt32((int32_t)node);
307        data.writeInt32(port_index);
308        data.write(*graphicBuffer);
309        data.writeInt32((int32_t)buffer);
310        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
311
312        status_t err = reply.readInt32();
313        return err;
314    }
315
316    virtual status_t createInputSurface(
317            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
318            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
319        Parcel data, reply;
320        status_t err;
321        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
322        data.writeInt32((int32_t)node);
323        data.writeInt32(port_index);
324        data.writeInt32(dataSpace);
325        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
326        if (err != OK) {
327            ALOGW("binder transaction failed: %d", err);
328            return err;
329        }
330
331        // read type even if createInputSurface failed
332        int negotiatedType = reply.readInt32();
333        if (type != NULL) {
334            *type = (MetadataBufferType)negotiatedType;
335        }
336
337        err = reply.readInt32();
338        if (err != OK) {
339            return err;
340        }
341
342        *bufferProducer = IGraphicBufferProducer::asInterface(
343                reply.readStrongBinder());
344
345        return err;
346    }
347
348    virtual status_t createPersistentInputSurface(
349            sp<IGraphicBufferProducer> *bufferProducer,
350            sp<IGraphicBufferConsumer> *bufferConsumer) {
351        Parcel data, reply;
352        status_t err;
353        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
354        err = remote()->transact(CREATE_PERSISTENT_INPUT_SURFACE, data, &reply);
355        if (err != OK) {
356            ALOGW("binder transaction failed: %d", err);
357            return err;
358        }
359
360        err = reply.readInt32();
361        if (err != OK) {
362            return err;
363        }
364
365        *bufferProducer = IGraphicBufferProducer::asInterface(
366                reply.readStrongBinder());
367        *bufferConsumer = IGraphicBufferConsumer::asInterface(
368                reply.readStrongBinder());
369
370        return err;
371    }
372
373    virtual status_t setInputSurface(
374            node_id node, OMX_U32 port_index,
375            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
376        Parcel data, reply;
377        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
378        status_t err;
379        data.writeInt32((int32_t)node);
380        data.writeInt32(port_index);
381        data.writeStrongBinder(IInterface::asBinder(bufferConsumer));
382
383        err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
384
385        if (err != OK) {
386            ALOGW("binder transaction failed: %d", err);
387            return err;
388        }
389
390        // read type even if setInputSurface failed
391        int negotiatedType = reply.readInt32();
392        if (type != NULL) {
393            *type = (MetadataBufferType)negotiatedType;
394        }
395
396        return reply.readInt32();
397    }
398
399    virtual status_t signalEndOfInputStream(node_id node) {
400        Parcel data, reply;
401        status_t err;
402        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
403        data.writeInt32((int32_t)node);
404        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
405        if (err != OK) {
406            ALOGW("binder transaction failed: %d", err);
407            return err;
408        }
409
410        return reply.readInt32();
411    }
412
413    virtual status_t storeMetaDataInBuffers(
414            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
415        Parcel data, reply;
416        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
417        data.writeInt32((int32_t)node);
418        data.writeInt32(port_index);
419        data.writeInt32((uint32_t)enable);
420        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
421
422        // read type even storeMetaDataInBuffers failed
423        int negotiatedType = reply.readInt32();
424        if (type != NULL) {
425            *type = (MetadataBufferType)negotiatedType;
426        }
427
428        return reply.readInt32();
429    }
430
431    virtual status_t prepareForAdaptivePlayback(
432            node_id node, OMX_U32 port_index, OMX_BOOL enable,
433            OMX_U32 max_width, OMX_U32 max_height) {
434        Parcel data, reply;
435        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
436        data.writeInt32((int32_t)node);
437        data.writeInt32(port_index);
438        data.writeInt32((int32_t)enable);
439        data.writeInt32(max_width);
440        data.writeInt32(max_height);
441        remote()->transact(PREPARE_FOR_ADAPTIVE_PLAYBACK, data, &reply);
442
443        status_t err = reply.readInt32();
444        return err;
445    }
446
447    virtual status_t configureVideoTunnelMode(
448            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
449            OMX_U32 audioHwSync, native_handle_t **sidebandHandle ) {
450        Parcel data, reply;
451        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
452        data.writeInt32((int32_t)node);
453        data.writeInt32(portIndex);
454        data.writeInt32((int32_t)tunneled);
455        data.writeInt32(audioHwSync);
456        remote()->transact(CONFIGURE_VIDEO_TUNNEL_MODE, data, &reply);
457
458        status_t err = reply.readInt32();
459        if (err == OK && sidebandHandle) {
460            *sidebandHandle = (native_handle_t *)reply.readNativeHandle();
461        }
462        return err;
463    }
464
465
466    virtual status_t allocateSecureBuffer(
467            node_id node, OMX_U32 port_index, size_t size,
468            buffer_id *buffer, void **buffer_data, native_handle_t **native_handle) {
469        Parcel data, reply;
470        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
471        data.writeInt32((int32_t)node);
472        data.writeInt32(port_index);
473        data.writeInt64(size);
474        remote()->transact(ALLOC_SECURE_BUFFER, data, &reply);
475
476        status_t err = reply.readInt32();
477        if (err != OK) {
478            *buffer = 0;
479            *buffer_data = NULL;
480            *native_handle = NULL;
481            return err;
482        }
483
484        *buffer = (buffer_id)reply.readInt32();
485        *buffer_data = (void *)reply.readInt64();
486        if (*buffer_data == NULL) {
487            *native_handle = reply.readNativeHandle();
488        } else {
489            *native_handle = NULL;
490        }
491        return err;
492    }
493
494    virtual status_t allocateBufferWithBackup(
495            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
496            buffer_id *buffer, OMX_U32 allottedSize) {
497        Parcel data, reply;
498        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
499        data.writeInt32((int32_t)node);
500        data.writeInt32(port_index);
501        data.writeStrongBinder(IInterface::asBinder(params));
502        data.writeInt32(allottedSize);
503        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
504
505        status_t err = reply.readInt32();
506        if (err != OK) {
507            *buffer = 0;
508
509            return err;
510        }
511
512        *buffer = (buffer_id)reply.readInt32();
513
514        return err;
515    }
516
517    virtual status_t freeBuffer(
518            node_id node, OMX_U32 port_index, buffer_id buffer) {
519        Parcel data, reply;
520        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
521        data.writeInt32((int32_t)node);
522        data.writeInt32(port_index);
523        data.writeInt32((int32_t)buffer);
524        remote()->transact(FREE_BUFFER, data, &reply);
525
526        return reply.readInt32();
527    }
528
529    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
530        Parcel data, reply;
531        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
532        data.writeInt32((int32_t)node);
533        data.writeInt32((int32_t)buffer);
534        data.writeInt32(fenceFd >= 0);
535        if (fenceFd >= 0) {
536            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
537        }
538        remote()->transact(FILL_BUFFER, data, &reply);
539
540        return reply.readInt32();
541    }
542
543    virtual status_t emptyBuffer(
544            node_id node,
545            buffer_id buffer,
546            OMX_U32 range_offset, OMX_U32 range_length,
547            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
548        Parcel data, reply;
549        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
550        data.writeInt32((int32_t)node);
551        data.writeInt32((int32_t)buffer);
552        data.writeInt32(range_offset);
553        data.writeInt32(range_length);
554        data.writeInt32(flags);
555        data.writeInt64(timestamp);
556        data.writeInt32(fenceFd >= 0);
557        if (fenceFd >= 0) {
558            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
559        }
560        remote()->transact(EMPTY_BUFFER, data, &reply);
561
562        return reply.readInt32();
563    }
564
565    virtual status_t getExtensionIndex(
566            node_id node,
567            const char *parameter_name,
568            OMX_INDEXTYPE *index) {
569        Parcel data, reply;
570        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
571        data.writeInt32((int32_t)node);
572        data.writeCString(parameter_name);
573
574        remote()->transact(GET_EXTENSION_INDEX, data, &reply);
575
576        status_t err = reply.readInt32();
577        if (err == OK) {
578            *index = static_cast<OMX_INDEXTYPE>(reply.readInt32());
579        } else {
580            *index = OMX_IndexComponentStartUnused;
581        }
582
583        return err;
584    }
585
586    virtual status_t setInternalOption(
587            node_id node,
588            OMX_U32 port_index,
589            InternalOptionType type,
590            const void *optionData,
591            size_t size) {
592        Parcel data, reply;
593        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
594        data.writeInt32((int32_t)node);
595        data.writeInt32(port_index);
596        data.writeInt64(size);
597        data.write(optionData, size);
598        data.writeInt32(type);
599        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
600
601        return reply.readInt32();
602    }
603};
604
605IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
606
607////////////////////////////////////////////////////////////////////////////////
608
609#define CHECK_OMX_INTERFACE(interface, data, reply) \
610        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
611            ALOGW("Call incorrectly routed to " #interface); \
612            return PERMISSION_DENIED; \
613        } } while (0)
614
615status_t BnOMX::onTransact(
616    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
617    switch (code) {
618        case LIVES_LOCALLY:
619        {
620            CHECK_OMX_INTERFACE(IOMX, data, reply);
621            node_id node = (node_id)data.readInt32();
622            pid_t pid = (pid_t)data.readInt32();
623            reply->writeInt32(livesLocally(node, pid));
624
625            return OK;
626        }
627
628        case LIST_NODES:
629        {
630            CHECK_OMX_INTERFACE(IOMX, data, reply);
631
632            List<ComponentInfo> list;
633            listNodes(&list);
634
635            reply->writeInt32(list.size());
636            for (List<ComponentInfo>::iterator it = list.begin();
637                 it != list.end(); ++it) {
638                ComponentInfo &cur = *it;
639
640                reply->writeString8(cur.mName);
641                reply->writeInt32(cur.mRoles.size());
642                for (List<String8>::iterator role_it = cur.mRoles.begin();
643                     role_it != cur.mRoles.end(); ++role_it) {
644                    reply->writeString8(*role_it);
645                }
646            }
647
648            return NO_ERROR;
649        }
650
651        case ALLOCATE_NODE:
652        {
653            CHECK_OMX_INTERFACE(IOMX, data, reply);
654
655            const char *name = data.readCString();
656
657            sp<IOMXObserver> observer =
658                interface_cast<IOMXObserver>(data.readStrongBinder());
659
660            if (name == NULL || observer == NULL) {
661                ALOGE("b/26392700");
662                reply->writeInt32(INVALID_OPERATION);
663                return NO_ERROR;
664            }
665
666            node_id node;
667
668            status_t err = allocateNode(name, observer,
669                    NULL /* nodeBinder */, &node);
670            reply->writeInt32(err);
671            if (err == OK) {
672                reply->writeInt32((int32_t)node);
673            }
674
675            return NO_ERROR;
676        }
677
678        case FREE_NODE:
679        {
680            CHECK_OMX_INTERFACE(IOMX, data, reply);
681
682            node_id node = (node_id)data.readInt32();
683
684            reply->writeInt32(freeNode(node));
685
686            return NO_ERROR;
687        }
688
689        case SEND_COMMAND:
690        {
691            CHECK_OMX_INTERFACE(IOMX, data, reply);
692
693            node_id node = (node_id)data.readInt32();
694
695            OMX_COMMANDTYPE cmd =
696                static_cast<OMX_COMMANDTYPE>(data.readInt32());
697
698            OMX_S32 param = data.readInt32();
699            reply->writeInt32(sendCommand(node, cmd, param));
700
701            return NO_ERROR;
702        }
703
704        case GET_PARAMETER:
705        case SET_PARAMETER:
706        case GET_CONFIG:
707        case SET_CONFIG:
708        case SET_INTERNAL_OPTION:
709        {
710            CHECK_OMX_INTERFACE(IOMX, data, reply);
711
712            node_id node = (node_id)data.readInt32();
713            OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
714
715            size_t size = data.readInt64();
716
717            status_t err = NOT_ENOUGH_DATA;
718            void *params = NULL;
719            size_t pageSize = 0;
720            size_t allocSize = 0;
721            if ((index == (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits && size < 4) ||
722                    (code != SET_INTERNAL_OPTION && size < 8)) {
723                // we expect the structure to contain at least the size and
724                // version, 8 bytes total
725                ALOGE("b/27207275 (%zu)", size);
726                android_errorWriteLog(0x534e4554, "27207275");
727            } else {
728                err = NO_MEMORY;
729                pageSize = (size_t) sysconf(_SC_PAGE_SIZE);
730                if (size > SIZE_MAX - (pageSize * 2)) {
731                    ALOGE("requested param size too big");
732                } else {
733                    allocSize = (size + pageSize * 2) & ~(pageSize - 1);
734                    params = mmap(NULL, allocSize, PROT_READ | PROT_WRITE,
735                            MAP_PRIVATE | MAP_ANONYMOUS, -1 /* fd */, 0 /* offset */);
736                }
737                if (params != MAP_FAILED) {
738                    err = data.read(params, size);
739                    if (err != OK) {
740                        android_errorWriteLog(0x534e4554, "26914474");
741                    } else {
742                        err = NOT_ENOUGH_DATA;
743                        OMX_U32 declaredSize = *(OMX_U32*)params;
744                        if (code != SET_INTERNAL_OPTION &&
745                                index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
746                                declaredSize > size) {
747                            // the buffer says it's bigger than it actually is
748                            ALOGE("b/27207275 (%u/%zu)", declaredSize, size);
749                            android_errorWriteLog(0x534e4554, "27207275");
750                        } else {
751                            // mark the last page as inaccessible, to avoid exploitation
752                            // of codecs that access past the end of the allocation because
753                            // they didn't check the size
754                            mprotect((char*)params + allocSize - pageSize, pageSize, PROT_NONE);
755                            switch (code) {
756                                case GET_PARAMETER:
757                                    err = getParameter(node, index, params, size);
758                                    break;
759                                case SET_PARAMETER:
760                                    err = setParameter(node, index, params, size);
761                                    break;
762                                case GET_CONFIG:
763                                    err = getConfig(node, index, params, size);
764                                    break;
765                                case SET_CONFIG:
766                                    err = setConfig(node, index, params, size);
767                                    break;
768                                case SET_INTERNAL_OPTION:
769                                {
770                                    InternalOptionType type =
771                                        (InternalOptionType)data.readInt32();
772
773                                    err = setInternalOption(node, index, type, params, size);
774                                    break;
775                                }
776
777                                default:
778                                    TRESPASS();
779                            }
780                        }
781                    }
782                } else {
783                    ALOGE("couldn't map: %s", strerror(errno));
784                }
785            }
786
787            reply->writeInt32(err);
788
789            if ((code == GET_PARAMETER || code == GET_CONFIG) && err == OK) {
790                reply->write(params, size);
791            }
792
793            if (params) {
794                munmap(params, allocSize);
795            }
796            params = NULL;
797
798            return NO_ERROR;
799        }
800
801        case GET_STATE:
802        {
803            CHECK_OMX_INTERFACE(IOMX, data, reply);
804
805            node_id node = (node_id)data.readInt32();
806            OMX_STATETYPE state = OMX_StateInvalid;
807
808            status_t err = getState(node, &state);
809            reply->writeInt32(state);
810            reply->writeInt32(err);
811
812            return NO_ERROR;
813        }
814
815        case ENABLE_NATIVE_BUFFERS:
816        {
817            CHECK_OMX_INTERFACE(IOMX, data, reply);
818
819            node_id node = (node_id)data.readInt32();
820            OMX_U32 port_index = data.readInt32();
821            OMX_BOOL graphic = (OMX_BOOL)data.readInt32();
822            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
823
824            status_t err = enableNativeBuffers(node, port_index, graphic, enable);
825            reply->writeInt32(err);
826
827            return NO_ERROR;
828        }
829
830        case GET_GRAPHIC_BUFFER_USAGE:
831        {
832            CHECK_OMX_INTERFACE(IOMX, data, reply);
833
834            node_id node = (node_id)data.readInt32();
835            OMX_U32 port_index = data.readInt32();
836
837            OMX_U32 usage = 0;
838            status_t err = getGraphicBufferUsage(node, port_index, &usage);
839            reply->writeInt32(err);
840            reply->writeInt32(usage);
841
842            return NO_ERROR;
843        }
844
845        case USE_BUFFER:
846        {
847            CHECK_OMX_INTERFACE(IOMX, data, reply);
848
849            node_id node = (node_id)data.readInt32();
850            OMX_U32 port_index = data.readInt32();
851            sp<IMemory> params =
852                interface_cast<IMemory>(data.readStrongBinder());
853            OMX_U32 allottedSize = data.readInt32();
854
855            if (params == NULL) {
856                ALOGE("b/26392700");
857                reply->writeInt32(INVALID_OPERATION);
858                return NO_ERROR;
859            }
860
861            buffer_id buffer;
862            status_t err = useBuffer(node, port_index, params, &buffer, allottedSize);
863            reply->writeInt32(err);
864
865            if (err == OK) {
866                reply->writeInt32((int32_t)buffer);
867            }
868
869            return NO_ERROR;
870        }
871
872        case USE_GRAPHIC_BUFFER:
873        {
874            CHECK_OMX_INTERFACE(IOMX, data, reply);
875
876            node_id node = (node_id)data.readInt32();
877            OMX_U32 port_index = data.readInt32();
878            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
879            data.read(*graphicBuffer);
880
881            buffer_id buffer;
882            status_t err = useGraphicBuffer(
883                    node, port_index, graphicBuffer, &buffer);
884            reply->writeInt32(err);
885
886            if (err == OK) {
887                reply->writeInt32((int32_t)buffer);
888            }
889
890            return NO_ERROR;
891        }
892
893        case UPDATE_GRAPHIC_BUFFER_IN_META:
894        {
895            CHECK_OMX_INTERFACE(IOMX, data, reply);
896
897            node_id node = (node_id)data.readInt32();
898            OMX_U32 port_index = data.readInt32();
899            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
900            data.read(*graphicBuffer);
901            buffer_id buffer = (buffer_id)data.readInt32();
902
903            status_t err = updateGraphicBufferInMeta(
904                    node, port_index, graphicBuffer, buffer);
905            reply->writeInt32(err);
906
907            return NO_ERROR;
908        }
909
910        case CREATE_INPUT_SURFACE:
911        {
912            CHECK_OMX_INTERFACE(IOMX, data, reply);
913
914            node_id node = (node_id)data.readInt32();
915            OMX_U32 port_index = data.readInt32();
916            android_dataspace dataSpace = (android_dataspace)data.readInt32();
917
918            sp<IGraphicBufferProducer> bufferProducer;
919            MetadataBufferType type = kMetadataBufferTypeInvalid;
920            status_t err = createInputSurface(node, port_index, dataSpace, &bufferProducer, &type);
921
922            if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
923                android_errorWriteLog(0x534e4554, "26324358");
924            }
925
926            reply->writeInt32(type);
927            reply->writeInt32(err);
928
929            if (err == OK) {
930                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
931            }
932
933            return NO_ERROR;
934        }
935
936        case CREATE_PERSISTENT_INPUT_SURFACE:
937        {
938            CHECK_OMX_INTERFACE(IOMX, data, reply);
939
940            sp<IGraphicBufferProducer> bufferProducer;
941            sp<IGraphicBufferConsumer> bufferConsumer;
942            status_t err = createPersistentInputSurface(
943                    &bufferProducer, &bufferConsumer);
944
945            reply->writeInt32(err);
946
947            if (err == OK) {
948                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
949                reply->writeStrongBinder(IInterface::asBinder(bufferConsumer));
950            }
951
952            return NO_ERROR;
953        }
954
955        case SET_INPUT_SURFACE:
956        {
957            CHECK_OMX_INTERFACE(IOMX, data, reply);
958
959            node_id node = (node_id)data.readInt32();
960            OMX_U32 port_index = data.readInt32();
961
962            sp<IGraphicBufferConsumer> bufferConsumer =
963                    interface_cast<IGraphicBufferConsumer>(data.readStrongBinder());
964
965            MetadataBufferType type = kMetadataBufferTypeInvalid;
966
967            status_t err = INVALID_OPERATION;
968            if (bufferConsumer == NULL) {
969                ALOGE("b/26392700");
970            } else {
971                err = setInputSurface(node, port_index, bufferConsumer, &type);
972
973                if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
974                   android_errorWriteLog(0x534e4554, "26324358");
975                }
976            }
977
978            reply->writeInt32(type);
979            reply->writeInt32(err);
980            return NO_ERROR;
981        }
982
983        case SIGNAL_END_OF_INPUT_STREAM:
984        {
985            CHECK_OMX_INTERFACE(IOMX, data, reply);
986
987            node_id node = (node_id)data.readInt32();
988
989            status_t err = signalEndOfInputStream(node);
990            reply->writeInt32(err);
991
992            return NO_ERROR;
993        }
994
995        case STORE_META_DATA_IN_BUFFERS:
996        {
997            CHECK_OMX_INTERFACE(IOMX, data, reply);
998
999            node_id node = (node_id)data.readInt32();
1000            OMX_U32 port_index = data.readInt32();
1001            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
1002
1003            MetadataBufferType type = kMetadataBufferTypeInvalid;
1004            status_t err = storeMetaDataInBuffers(node, port_index, enable, &type);
1005
1006            reply->writeInt32(type);
1007            reply->writeInt32(err);
1008
1009            return NO_ERROR;
1010        }
1011
1012        case PREPARE_FOR_ADAPTIVE_PLAYBACK:
1013        {
1014            CHECK_OMX_INTERFACE(IOMX, data, reply);
1015
1016            node_id node = (node_id)data.readInt32();
1017            OMX_U32 port_index = data.readInt32();
1018            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
1019            OMX_U32 max_width = data.readInt32();
1020            OMX_U32 max_height = data.readInt32();
1021
1022            status_t err = prepareForAdaptivePlayback(
1023                    node, port_index, enable, max_width, max_height);
1024            reply->writeInt32(err);
1025
1026            return NO_ERROR;
1027        }
1028
1029        case CONFIGURE_VIDEO_TUNNEL_MODE:
1030        {
1031            CHECK_OMX_INTERFACE(IOMX, data, reply);
1032
1033            node_id node = (node_id)data.readInt32();
1034            OMX_U32 port_index = data.readInt32();
1035            OMX_BOOL tunneled = (OMX_BOOL)data.readInt32();
1036            OMX_U32 audio_hw_sync = data.readInt32();
1037
1038            native_handle_t *sideband_handle = NULL;
1039            status_t err = configureVideoTunnelMode(
1040                    node, port_index, tunneled, audio_hw_sync, &sideband_handle);
1041            reply->writeInt32(err);
1042            if(err == OK){
1043                reply->writeNativeHandle(sideband_handle);
1044            }
1045
1046            return NO_ERROR;
1047        }
1048
1049        case ALLOC_SECURE_BUFFER:
1050        {
1051            CHECK_OMX_INTERFACE(IOMX, data, reply);
1052
1053            node_id node = (node_id)data.readInt32();
1054            OMX_U32 port_index = data.readInt32();
1055            if (!isSecure(node) || port_index != 0 /* kPortIndexInput */) {
1056                ALOGE("b/24310423");
1057                reply->writeInt32(INVALID_OPERATION);
1058                return NO_ERROR;
1059            }
1060
1061            size_t size = data.readInt64();
1062
1063            buffer_id buffer;
1064            void *buffer_data = NULL;
1065            native_handle_t *native_handle = NULL;
1066            status_t err = allocateSecureBuffer(
1067                    node, port_index, size, &buffer, &buffer_data, &native_handle);
1068            reply->writeInt32(err);
1069
1070            if (err == OK) {
1071                reply->writeInt32((int32_t)buffer);
1072                reply->writeInt64((uintptr_t)buffer_data);
1073                if (buffer_data == NULL) {
1074                    reply->writeNativeHandle(native_handle);
1075                }
1076            }
1077
1078            return NO_ERROR;
1079        }
1080
1081        case ALLOC_BUFFER_WITH_BACKUP:
1082        {
1083            CHECK_OMX_INTERFACE(IOMX, data, reply);
1084
1085            node_id node = (node_id)data.readInt32();
1086            OMX_U32 port_index = data.readInt32();
1087            sp<IMemory> params =
1088                interface_cast<IMemory>(data.readStrongBinder());
1089            OMX_U32 allottedSize = data.readInt32();
1090
1091            if (params == NULL) {
1092                ALOGE("b/26392700");
1093                reply->writeInt32(INVALID_OPERATION);
1094                return NO_ERROR;
1095            }
1096
1097            buffer_id buffer;
1098            status_t err = allocateBufferWithBackup(
1099                    node, port_index, params, &buffer, allottedSize);
1100
1101            reply->writeInt32(err);
1102
1103            if (err == OK) {
1104                reply->writeInt32((int32_t)buffer);
1105            }
1106
1107            return NO_ERROR;
1108        }
1109
1110        case FREE_BUFFER:
1111        {
1112            CHECK_OMX_INTERFACE(IOMX, data, reply);
1113
1114            node_id node = (node_id)data.readInt32();
1115            OMX_U32 port_index = data.readInt32();
1116            buffer_id buffer = (buffer_id)data.readInt32();
1117            reply->writeInt32(freeBuffer(node, port_index, buffer));
1118
1119            return NO_ERROR;
1120        }
1121
1122        case FILL_BUFFER:
1123        {
1124            CHECK_OMX_INTERFACE(IOMX, data, reply);
1125
1126            node_id node = (node_id)data.readInt32();
1127            buffer_id buffer = (buffer_id)data.readInt32();
1128            bool haveFence = data.readInt32();
1129            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1130            reply->writeInt32(fillBuffer(node, buffer, fenceFd));
1131
1132            return NO_ERROR;
1133        }
1134
1135        case EMPTY_BUFFER:
1136        {
1137            CHECK_OMX_INTERFACE(IOMX, data, reply);
1138
1139            node_id node = (node_id)data.readInt32();
1140            buffer_id buffer = (buffer_id)data.readInt32();
1141            OMX_U32 range_offset = data.readInt32();
1142            OMX_U32 range_length = data.readInt32();
1143            OMX_U32 flags = data.readInt32();
1144            OMX_TICKS timestamp = data.readInt64();
1145            bool haveFence = data.readInt32();
1146            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1147            reply->writeInt32(emptyBuffer(
1148                    node, buffer, range_offset, range_length, flags, timestamp, fenceFd));
1149
1150            return NO_ERROR;
1151        }
1152
1153        case GET_EXTENSION_INDEX:
1154        {
1155            CHECK_OMX_INTERFACE(IOMX, data, reply);
1156
1157            node_id node = (node_id)data.readInt32();
1158            const char *parameter_name = data.readCString();
1159
1160            if (parameter_name == NULL) {
1161                ALOGE("b/26392700");
1162                reply->writeInt32(INVALID_OPERATION);
1163                return NO_ERROR;
1164            }
1165
1166            OMX_INDEXTYPE index;
1167            status_t err = getExtensionIndex(node, parameter_name, &index);
1168
1169            reply->writeInt32(err);
1170
1171            if (err == OK) {
1172                reply->writeInt32(index);
1173            }
1174
1175            return OK;
1176        }
1177
1178        default:
1179            return BBinder::onTransact(code, data, reply, flags);
1180    }
1181}
1182
1183////////////////////////////////////////////////////////////////////////////////
1184
1185class BpOMXObserver : public BpInterface<IOMXObserver> {
1186public:
1187    BpOMXObserver(const sp<IBinder> &impl)
1188        : BpInterface<IOMXObserver>(impl) {
1189    }
1190
1191    virtual void onMessages(const std::list<omx_message> &messages) {
1192        Parcel data, reply;
1193        std::list<omx_message>::const_iterator it = messages.cbegin();
1194        bool first = true;
1195        while (it != messages.cend()) {
1196            const omx_message &msg = *it++;
1197            if (first) {
1198                data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
1199                data.writeInt32(msg.node);
1200                first = false;
1201            }
1202            data.writeInt32(msg.fenceFd >= 0);
1203            if (msg.fenceFd >= 0) {
1204                data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
1205            }
1206            data.writeInt32(msg.type);
1207            data.write(&msg.u, sizeof(msg.u));
1208            ALOGV("onMessage writing message %d, size %zu", msg.type, sizeof(msg));
1209        }
1210        if (!first) {
1211            data.writeInt32(-1); // mark end
1212            remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
1213        }
1214    }
1215};
1216
1217IMPLEMENT_META_INTERFACE(OMXObserver, "android.hardware.IOMXObserver");
1218
1219status_t BnOMXObserver::onTransact(
1220    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
1221    switch (code) {
1222        case OBSERVER_ON_MSG:
1223        {
1224            CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
1225            IOMX::node_id node = data.readInt32();
1226            std::list<omx_message> messages;
1227            status_t err = FAILED_TRANSACTION; // must receive at least one message
1228            do {
1229                int haveFence = data.readInt32();
1230                if (haveFence < 0) { // we use -1 to mark end of messages
1231                    break;
1232                }
1233                omx_message msg;
1234                msg.node = node;
1235                msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1236                msg.type = (typeof(msg.type))data.readInt32();
1237                err = data.read(&msg.u, sizeof(msg.u));
1238                ALOGV("onTransact reading message %d, size %zu", msg.type, sizeof(msg));
1239                messages.push_back(msg);
1240            } while (err == OK);
1241
1242            if (err == OK) {
1243                onMessages(messages);
1244            }
1245
1246            return err;
1247        }
1248
1249        default:
1250            return BBinder::onTransact(code, data, reply, flags);
1251    }
1252}
1253
1254}  // namespace android
1255