IOMX.cpp revision 7e0bef8aa6bf9db06079b743794ec2712ad84431 
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#include <utils/NativeHandle.h>
29
30namespace android {
31
32enum {
33    CONNECT = IBinder::FIRST_CALL_TRANSACTION,
34    LIVES_LOCALLY,
35    LIST_NODES,
36    ALLOCATE_NODE,
37    FREE_NODE,
38    SEND_COMMAND,
39    GET_PARAMETER,
40    SET_PARAMETER,
41    GET_CONFIG,
42    SET_CONFIG,
43    GET_STATE,
44    ENABLE_NATIVE_BUFFERS,
45    USE_BUFFER,
46    USE_GRAPHIC_BUFFER,
47    CREATE_INPUT_SURFACE,
48    CREATE_PERSISTENT_INPUT_SURFACE,
49    SET_INPUT_SURFACE,
50    SIGNAL_END_OF_INPUT_STREAM,
51    STORE_META_DATA_IN_BUFFERS,
52    PREPARE_FOR_ADAPTIVE_PLAYBACK,
53    ALLOC_SECURE_BUFFER,
54    ALLOC_BUFFER_WITH_BACKUP,
55    FREE_BUFFER,
56    FILL_BUFFER,
57    EMPTY_BUFFER,
58    GET_EXTENSION_INDEX,
59    OBSERVER_ON_MSG,
60    GET_GRAPHIC_BUFFER_USAGE,
61    SET_INTERNAL_OPTION,
62    UPDATE_GRAPHIC_BUFFER_IN_META,
63    CONFIGURE_VIDEO_TUNNEL_MODE,
64    UPDATE_NATIVE_HANDLE_IN_META,
65};
66
67class BpOMX : public BpInterface<IOMX> {
68public:
69    BpOMX(const sp<IBinder> &impl)
70        : BpInterface<IOMX>(impl) {
71    }
72
73    virtual bool livesLocally(node_id node, pid_t pid) {
74        Parcel data, reply;
75        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
76        data.writeInt32((int32_t)node);
77        data.writeInt32(pid);
78        remote()->transact(LIVES_LOCALLY, data, &reply);
79
80        return reply.readInt32() != 0;
81    }
82
83    virtual status_t listNodes(List<ComponentInfo> *list) {
84        list->clear();
85
86        Parcel data, reply;
87        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
88        remote()->transact(LIST_NODES, data, &reply);
89
90        int32_t n = reply.readInt32();
91        for (int32_t i = 0; i < n; ++i) {
92            list->push_back(ComponentInfo());
93            ComponentInfo &info = *--list->end();
94
95            info.mName = reply.readString8();
96            int32_t numRoles = reply.readInt32();
97            for (int32_t j = 0; j < numRoles; ++j) {
98                info.mRoles.push_back(reply.readString8());
99            }
100        }
101
102        return OK;
103    }
104
105    virtual status_t allocateNode(
106            const char *name, const sp<IOMXObserver> &observer,
107            sp<IBinder> *nodeBinder,
108            node_id *node) {
109        Parcel data, reply;
110        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
111        data.writeCString(name);
112        data.writeStrongBinder(IInterface::asBinder(observer));
113        remote()->transact(ALLOCATE_NODE, data, &reply);
114
115        status_t err = reply.readInt32();
116        if (err == OK) {
117            *node = (node_id)reply.readInt32();
118            if (nodeBinder != NULL) {
119                *nodeBinder = remote();
120            }
121        } else {
122            *node = 0;
123        }
124
125        return err;
126    }
127
128    virtual status_t freeNode(node_id node) {
129        Parcel data, reply;
130        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
131        data.writeInt32((int32_t)node);
132        remote()->transact(FREE_NODE, data, &reply);
133
134        return reply.readInt32();
135    }
136
137    virtual status_t sendCommand(
138            node_id node, OMX_COMMANDTYPE cmd, OMX_S32 param) {
139        Parcel data, reply;
140        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
141        data.writeInt32((int32_t)node);
142        data.writeInt32(cmd);
143        data.writeInt32(param);
144        remote()->transact(SEND_COMMAND, data, &reply);
145
146        return reply.readInt32();
147    }
148
149    virtual status_t getParameter(
150            node_id node, OMX_INDEXTYPE index,
151            void *params, size_t size) {
152        Parcel data, reply;
153        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
154        data.writeInt32((int32_t)node);
155        data.writeInt32(index);
156        data.writeInt64(size);
157        data.write(params, size);
158        remote()->transact(GET_PARAMETER, data, &reply);
159
160        status_t err = reply.readInt32();
161        if (err != OK) {
162            return err;
163        }
164
165        reply.read(params, size);
166
167        return OK;
168    }
169
170    virtual status_t setParameter(
171            node_id node, OMX_INDEXTYPE index,
172            const void *params, size_t size) {
173        Parcel data, reply;
174        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
175        data.writeInt32((int32_t)node);
176        data.writeInt32(index);
177        data.writeInt64(size);
178        data.write(params, size);
179        remote()->transact(SET_PARAMETER, data, &reply);
180
181        return reply.readInt32();
182    }
183
184    virtual status_t getConfig(
185            node_id node, OMX_INDEXTYPE index,
186            void *params, size_t size) {
187        Parcel data, reply;
188        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
189        data.writeInt32((int32_t)node);
190        data.writeInt32(index);
191        data.writeInt64(size);
192        data.write(params, size);
193        remote()->transact(GET_CONFIG, data, &reply);
194
195        status_t err = reply.readInt32();
196        if (err != OK) {
197            return err;
198        }
199
200        reply.read(params, size);
201
202        return OK;
203    }
204
205    virtual status_t setConfig(
206            node_id node, OMX_INDEXTYPE index,
207            const void *params, size_t size) {
208        Parcel data, reply;
209        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
210        data.writeInt32((int32_t)node);
211        data.writeInt32(index);
212        data.writeInt64(size);
213        data.write(params, size);
214        remote()->transact(SET_CONFIG, data, &reply);
215
216        return reply.readInt32();
217    }
218
219    virtual status_t getState(
220            node_id node, OMX_STATETYPE* state) {
221        Parcel data, reply;
222        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
223        data.writeInt32((int32_t)node);
224        remote()->transact(GET_STATE, data, &reply);
225
226        *state = static_cast<OMX_STATETYPE>(reply.readInt32());
227        return reply.readInt32();
228    }
229
230    virtual status_t enableNativeBuffers(
231            node_id node, OMX_U32 port_index, OMX_BOOL graphic, OMX_BOOL enable) {
232        Parcel data, reply;
233        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
234        data.writeInt32((int32_t)node);
235        data.writeInt32(port_index);
236        data.writeInt32((uint32_t)graphic);
237        data.writeInt32((uint32_t)enable);
238        remote()->transact(ENABLE_NATIVE_BUFFERS, data, &reply);
239
240        status_t err = reply.readInt32();
241        return err;
242    }
243
244    virtual status_t getGraphicBufferUsage(
245            node_id node, OMX_U32 port_index, OMX_U32* usage) {
246        Parcel data, reply;
247        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
248        data.writeInt32((int32_t)node);
249        data.writeInt32(port_index);
250        remote()->transact(GET_GRAPHIC_BUFFER_USAGE, data, &reply);
251
252        status_t err = reply.readInt32();
253        *usage = reply.readInt32();
254        return err;
255    }
256
257    virtual status_t useBuffer(
258            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
259            buffer_id *buffer, OMX_U32 allottedSize) {
260        Parcel data, reply;
261        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
262        data.writeInt32((int32_t)node);
263        data.writeInt32(port_index);
264        data.writeStrongBinder(IInterface::asBinder(params));
265        data.writeInt32(allottedSize);
266        remote()->transact(USE_BUFFER, data, &reply);
267
268        status_t err = reply.readInt32();
269        if (err != OK) {
270            *buffer = 0;
271
272            return err;
273        }
274
275        *buffer = (buffer_id)reply.readInt32();
276
277        return err;
278    }
279
280
281    virtual status_t useGraphicBuffer(
282            node_id node, OMX_U32 port_index,
283            const sp<GraphicBuffer> &graphicBuffer, buffer_id *buffer) {
284        Parcel data, reply;
285        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
286        data.writeInt32((int32_t)node);
287        data.writeInt32(port_index);
288        data.write(*graphicBuffer);
289        remote()->transact(USE_GRAPHIC_BUFFER, data, &reply);
290
291        status_t err = reply.readInt32();
292        if (err != OK) {
293            *buffer = 0;
294
295            return err;
296        }
297
298        *buffer = (buffer_id)reply.readInt32();
299
300        return err;
301    }
302
303    virtual status_t updateGraphicBufferInMeta(
304            node_id node, OMX_U32 port_index,
305            const sp<GraphicBuffer> &graphicBuffer, buffer_id buffer) {
306        Parcel data, reply;
307        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
308        data.writeInt32((int32_t)node);
309        data.writeInt32(port_index);
310        data.write(*graphicBuffer);
311        data.writeInt32((int32_t)buffer);
312        remote()->transact(UPDATE_GRAPHIC_BUFFER_IN_META, data, &reply);
313
314        status_t err = reply.readInt32();
315        return err;
316    }
317
318    virtual status_t updateNativeHandleInMeta(
319            node_id node, OMX_U32 port_index,
320            const sp<NativeHandle> &nativeHandle, buffer_id buffer) {
321        Parcel data, reply;
322        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
323        data.writeInt32((int32_t)node);
324        data.writeInt32(port_index);
325        data.writeInt32(nativeHandle != NULL);
326        if (nativeHandle != NULL) {
327            data.writeNativeHandle(nativeHandle->handle());
328        }
329        data.writeInt32((int32_t)buffer);
330        remote()->transact(UPDATE_NATIVE_HANDLE_IN_META, data, &reply);
331
332        status_t err = reply.readInt32();
333        return err;
334    }
335
336    virtual status_t createInputSurface(
337            node_id node, OMX_U32 port_index, android_dataspace dataSpace,
338            sp<IGraphicBufferProducer> *bufferProducer, MetadataBufferType *type) {
339        Parcel data, reply;
340        status_t err;
341        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
342        data.writeInt32((int32_t)node);
343        data.writeInt32(port_index);
344        data.writeInt32(dataSpace);
345        err = remote()->transact(CREATE_INPUT_SURFACE, data, &reply);
346        if (err != OK) {
347            ALOGW("binder transaction failed: %d", err);
348            return err;
349        }
350
351        // read type even if createInputSurface failed
352        int negotiatedType = reply.readInt32();
353        if (type != NULL) {
354            *type = (MetadataBufferType)negotiatedType;
355        }
356
357        err = reply.readInt32();
358        if (err != OK) {
359            return err;
360        }
361
362        *bufferProducer = IGraphicBufferProducer::asInterface(
363                reply.readStrongBinder());
364
365        return err;
366    }
367
368    virtual status_t createPersistentInputSurface(
369            sp<IGraphicBufferProducer> *bufferProducer,
370            sp<IGraphicBufferConsumer> *bufferConsumer) {
371        Parcel data, reply;
372        status_t err;
373        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
374        err = remote()->transact(CREATE_PERSISTENT_INPUT_SURFACE, data, &reply);
375        if (err != OK) {
376            ALOGW("binder transaction failed: %d", err);
377            return err;
378        }
379
380        err = reply.readInt32();
381        if (err != OK) {
382            return err;
383        }
384
385        *bufferProducer = IGraphicBufferProducer::asInterface(
386                reply.readStrongBinder());
387        *bufferConsumer = IGraphicBufferConsumer::asInterface(
388                reply.readStrongBinder());
389
390        return err;
391    }
392
393    virtual status_t setInputSurface(
394            node_id node, OMX_U32 port_index,
395            const sp<IGraphicBufferConsumer> &bufferConsumer, MetadataBufferType *type) {
396        Parcel data, reply;
397        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
398        status_t err;
399        data.writeInt32((int32_t)node);
400        data.writeInt32(port_index);
401        data.writeStrongBinder(IInterface::asBinder(bufferConsumer));
402
403        err = remote()->transact(SET_INPUT_SURFACE, data, &reply);
404
405        if (err != OK) {
406            ALOGW("binder transaction failed: %d", err);
407            return err;
408        }
409
410        // read type even if setInputSurface failed
411        int negotiatedType = reply.readInt32();
412        if (type != NULL) {
413            *type = (MetadataBufferType)negotiatedType;
414        }
415
416        return reply.readInt32();
417    }
418
419    virtual status_t signalEndOfInputStream(node_id node) {
420        Parcel data, reply;
421        status_t err;
422        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
423        data.writeInt32((int32_t)node);
424        err = remote()->transact(SIGNAL_END_OF_INPUT_STREAM, data, &reply);
425        if (err != OK) {
426            ALOGW("binder transaction failed: %d", err);
427            return err;
428        }
429
430        return reply.readInt32();
431    }
432
433    virtual status_t storeMetaDataInBuffers(
434            node_id node, OMX_U32 port_index, OMX_BOOL enable, MetadataBufferType *type) {
435        Parcel data, reply;
436        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
437        data.writeInt32((int32_t)node);
438        data.writeInt32(port_index);
439        data.writeInt32((uint32_t)enable);
440        remote()->transact(STORE_META_DATA_IN_BUFFERS, data, &reply);
441
442        // read type even storeMetaDataInBuffers failed
443        int negotiatedType = reply.readInt32();
444        if (type != NULL) {
445            *type = (MetadataBufferType)negotiatedType;
446        }
447
448        return reply.readInt32();
449    }
450
451    virtual status_t prepareForAdaptivePlayback(
452            node_id node, OMX_U32 port_index, OMX_BOOL enable,
453            OMX_U32 max_width, OMX_U32 max_height) {
454        Parcel data, reply;
455        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
456        data.writeInt32((int32_t)node);
457        data.writeInt32(port_index);
458        data.writeInt32((int32_t)enable);
459        data.writeInt32(max_width);
460        data.writeInt32(max_height);
461        remote()->transact(PREPARE_FOR_ADAPTIVE_PLAYBACK, data, &reply);
462
463        status_t err = reply.readInt32();
464        return err;
465    }
466
467    virtual status_t configureVideoTunnelMode(
468            node_id node, OMX_U32 portIndex, OMX_BOOL tunneled,
469            OMX_U32 audioHwSync, native_handle_t **sidebandHandle ) {
470        Parcel data, reply;
471        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
472        data.writeInt32((int32_t)node);
473        data.writeInt32(portIndex);
474        data.writeInt32((int32_t)tunneled);
475        data.writeInt32(audioHwSync);
476        remote()->transact(CONFIGURE_VIDEO_TUNNEL_MODE, data, &reply);
477
478        status_t err = reply.readInt32();
479        if (err == OK && sidebandHandle) {
480            *sidebandHandle = (native_handle_t *)reply.readNativeHandle();
481        }
482        return err;
483    }
484
485
486    virtual status_t allocateSecureBuffer(
487            node_id node, OMX_U32 port_index, size_t size,
488            buffer_id *buffer, void **buffer_data, native_handle_t **native_handle) {
489        Parcel data, reply;
490        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
491        data.writeInt32((int32_t)node);
492        data.writeInt32(port_index);
493        data.writeInt64(size);
494        remote()->transact(ALLOC_SECURE_BUFFER, data, &reply);
495
496        status_t err = reply.readInt32();
497        if (err != OK) {
498            *buffer = 0;
499            *buffer_data = NULL;
500            *native_handle = NULL;
501            return err;
502        }
503
504        *buffer = (buffer_id)reply.readInt32();
505        *buffer_data = (void *)reply.readInt64();
506        if (*buffer_data == NULL) {
507            *native_handle = reply.readNativeHandle();
508        } else {
509            *native_handle = NULL;
510        }
511        return err;
512    }
513
514    virtual status_t allocateBufferWithBackup(
515            node_id node, OMX_U32 port_index, const sp<IMemory> &params,
516            buffer_id *buffer, OMX_U32 allottedSize) {
517        Parcel data, reply;
518        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
519        data.writeInt32((int32_t)node);
520        data.writeInt32(port_index);
521        data.writeStrongBinder(IInterface::asBinder(params));
522        data.writeInt32(allottedSize);
523        remote()->transact(ALLOC_BUFFER_WITH_BACKUP, data, &reply);
524
525        status_t err = reply.readInt32();
526        if (err != OK) {
527            *buffer = 0;
528
529            return err;
530        }
531
532        *buffer = (buffer_id)reply.readInt32();
533
534        return err;
535    }
536
537    virtual status_t freeBuffer(
538            node_id node, OMX_U32 port_index, buffer_id buffer) {
539        Parcel data, reply;
540        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
541        data.writeInt32((int32_t)node);
542        data.writeInt32(port_index);
543        data.writeInt32((int32_t)buffer);
544        remote()->transact(FREE_BUFFER, data, &reply);
545
546        return reply.readInt32();
547    }
548
549    virtual status_t fillBuffer(node_id node, buffer_id buffer, int fenceFd) {
550        Parcel data, reply;
551        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
552        data.writeInt32((int32_t)node);
553        data.writeInt32((int32_t)buffer);
554        data.writeInt32(fenceFd >= 0);
555        if (fenceFd >= 0) {
556            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
557        }
558        remote()->transact(FILL_BUFFER, data, &reply);
559
560        return reply.readInt32();
561    }
562
563    virtual status_t emptyBuffer(
564            node_id node,
565            buffer_id buffer,
566            OMX_U32 range_offset, OMX_U32 range_length,
567            OMX_U32 flags, OMX_TICKS timestamp, int fenceFd) {
568        Parcel data, reply;
569        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
570        data.writeInt32((int32_t)node);
571        data.writeInt32((int32_t)buffer);
572        data.writeInt32(range_offset);
573        data.writeInt32(range_length);
574        data.writeInt32(flags);
575        data.writeInt64(timestamp);
576        data.writeInt32(fenceFd >= 0);
577        if (fenceFd >= 0) {
578            data.writeFileDescriptor(fenceFd, true /* takeOwnership */);
579        }
580        remote()->transact(EMPTY_BUFFER, data, &reply);
581
582        return reply.readInt32();
583    }
584
585    virtual status_t getExtensionIndex(
586            node_id node,
587            const char *parameter_name,
588            OMX_INDEXTYPE *index) {
589        Parcel data, reply;
590        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
591        data.writeInt32((int32_t)node);
592        data.writeCString(parameter_name);
593
594        remote()->transact(GET_EXTENSION_INDEX, data, &reply);
595
596        status_t err = reply.readInt32();
597        if (err == OK) {
598            *index = static_cast<OMX_INDEXTYPE>(reply.readInt32());
599        } else {
600            *index = OMX_IndexComponentStartUnused;
601        }
602
603        return err;
604    }
605
606    virtual status_t setInternalOption(
607            node_id node,
608            OMX_U32 port_index,
609            InternalOptionType type,
610            const void *optionData,
611            size_t size) {
612        Parcel data, reply;
613        data.writeInterfaceToken(IOMX::getInterfaceDescriptor());
614        data.writeInt32((int32_t)node);
615        data.writeInt32(port_index);
616        data.writeInt64(size);
617        data.write(optionData, size);
618        data.writeInt32(type);
619        remote()->transact(SET_INTERNAL_OPTION, data, &reply);
620
621        return reply.readInt32();
622    }
623};
624
625IMPLEMENT_META_INTERFACE(OMX, "android.hardware.IOMX");
626
627////////////////////////////////////////////////////////////////////////////////
628
629#define CHECK_OMX_INTERFACE(interface, data, reply) \
630        do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
631            ALOGW("Call incorrectly routed to " #interface); \
632            return PERMISSION_DENIED; \
633        } } while (0)
634
635status_t BnOMX::onTransact(
636    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
637    switch (code) {
638        case LIVES_LOCALLY:
639        {
640            CHECK_OMX_INTERFACE(IOMX, data, reply);
641            node_id node = (node_id)data.readInt32();
642            pid_t pid = (pid_t)data.readInt32();
643            reply->writeInt32(livesLocally(node, pid));
644
645            return OK;
646        }
647
648        case LIST_NODES:
649        {
650            CHECK_OMX_INTERFACE(IOMX, data, reply);
651
652            List<ComponentInfo> list;
653            listNodes(&list);
654
655            reply->writeInt32(list.size());
656            for (List<ComponentInfo>::iterator it = list.begin();
657                 it != list.end(); ++it) {
658                ComponentInfo &cur = *it;
659
660                reply->writeString8(cur.mName);
661                reply->writeInt32(cur.mRoles.size());
662                for (List<String8>::iterator role_it = cur.mRoles.begin();
663                     role_it != cur.mRoles.end(); ++role_it) {
664                    reply->writeString8(*role_it);
665                }
666            }
667
668            return NO_ERROR;
669        }
670
671        case ALLOCATE_NODE:
672        {
673            CHECK_OMX_INTERFACE(IOMX, data, reply);
674
675            const char *name = data.readCString();
676
677            sp<IOMXObserver> observer =
678                interface_cast<IOMXObserver>(data.readStrongBinder());
679
680            if (name == NULL || observer == NULL) {
681                ALOGE("b/26392700");
682                reply->writeInt32(INVALID_OPERATION);
683                return NO_ERROR;
684            }
685
686            node_id node;
687
688            status_t err = allocateNode(name, observer,
689                    NULL /* nodeBinder */, &node);
690            reply->writeInt32(err);
691            if (err == OK) {
692                reply->writeInt32((int32_t)node);
693            }
694
695            return NO_ERROR;
696        }
697
698        case FREE_NODE:
699        {
700            CHECK_OMX_INTERFACE(IOMX, data, reply);
701
702            node_id node = (node_id)data.readInt32();
703
704            reply->writeInt32(freeNode(node));
705
706            return NO_ERROR;
707        }
708
709        case SEND_COMMAND:
710        {
711            CHECK_OMX_INTERFACE(IOMX, data, reply);
712
713            node_id node = (node_id)data.readInt32();
714
715            OMX_COMMANDTYPE cmd =
716                static_cast<OMX_COMMANDTYPE>(data.readInt32());
717
718            OMX_S32 param = data.readInt32();
719            reply->writeInt32(sendCommand(node, cmd, param));
720
721            return NO_ERROR;
722        }
723
724        case GET_PARAMETER:
725        case SET_PARAMETER:
726        case GET_CONFIG:
727        case SET_CONFIG:
728        case SET_INTERNAL_OPTION:
729        {
730            CHECK_OMX_INTERFACE(IOMX, data, reply);
731
732            node_id node = (node_id)data.readInt32();
733            OMX_INDEXTYPE index = static_cast<OMX_INDEXTYPE>(data.readInt32());
734
735            size_t size = data.readInt64();
736
737            status_t err = NOT_ENOUGH_DATA;
738            void *params = NULL;
739            size_t pageSize = 0;
740            size_t allocSize = 0;
741            bool isUsageBits = (index == (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits);
742            if ((isUsageBits && size < 4) ||
743                    (!isUsageBits && code != SET_INTERNAL_OPTION && size < 8)) {
744                // we expect the structure to contain at least the size and
745                // version, 8 bytes total
746                ALOGE("b/27207275 (%zu) (%d/%d)", size, int(index), int(code));
747                android_errorWriteLog(0x534e4554, "27207275");
748            } else {
749                err = NO_MEMORY;
750                pageSize = (size_t) sysconf(_SC_PAGE_SIZE);
751                if (size > SIZE_MAX - (pageSize * 2)) {
752                    ALOGE("requested param size too big");
753                } else {
754                    allocSize = (size + pageSize * 2) & ~(pageSize - 1);
755                    params = mmap(NULL, allocSize, PROT_READ | PROT_WRITE,
756                            MAP_PRIVATE | MAP_ANONYMOUS, -1 /* fd */, 0 /* offset */);
757                }
758                if (params != MAP_FAILED) {
759                    err = data.read(params, size);
760                    if (err != OK) {
761                        android_errorWriteLog(0x534e4554, "26914474");
762                    } else {
763                        err = NOT_ENOUGH_DATA;
764                        OMX_U32 declaredSize = *(OMX_U32*)params;
765                        if (code != SET_INTERNAL_OPTION &&
766                                index != (OMX_INDEXTYPE) OMX_IndexParamConsumerUsageBits &&
767                                declaredSize > size) {
768                            // the buffer says it's bigger than it actually is
769                            ALOGE("b/27207275 (%u/%zu)", declaredSize, size);
770                            android_errorWriteLog(0x534e4554, "27207275");
771                        } else {
772                            // mark the last page as inaccessible, to avoid exploitation
773                            // of codecs that access past the end of the allocation because
774                            // they didn't check the size
775                            mprotect((char*)params + allocSize - pageSize, pageSize, PROT_NONE);
776                            switch (code) {
777                                case GET_PARAMETER:
778                                    err = getParameter(node, index, params, size);
779                                    break;
780                                case SET_PARAMETER:
781                                    err = setParameter(node, index, params, size);
782                                    break;
783                                case GET_CONFIG:
784                                    err = getConfig(node, index, params, size);
785                                    break;
786                                case SET_CONFIG:
787                                    err = setConfig(node, index, params, size);
788                                    break;
789                                case SET_INTERNAL_OPTION:
790                                {
791                                    InternalOptionType type =
792                                        (InternalOptionType)data.readInt32();
793
794                                    err = setInternalOption(node, index, type, params, size);
795                                    break;
796                                }
797
798                                default:
799                                    TRESPASS();
800                            }
801                        }
802                    }
803                } else {
804                    ALOGE("couldn't map: %s", strerror(errno));
805                }
806            }
807
808            reply->writeInt32(err);
809
810            if ((code == GET_PARAMETER || code == GET_CONFIG) && err == OK) {
811                reply->write(params, size);
812            }
813
814            if (params) {
815                munmap(params, allocSize);
816            }
817            params = NULL;
818
819            return NO_ERROR;
820        }
821
822        case GET_STATE:
823        {
824            CHECK_OMX_INTERFACE(IOMX, data, reply);
825
826            node_id node = (node_id)data.readInt32();
827            OMX_STATETYPE state = OMX_StateInvalid;
828
829            status_t err = getState(node, &state);
830            reply->writeInt32(state);
831            reply->writeInt32(err);
832
833            return NO_ERROR;
834        }
835
836        case ENABLE_NATIVE_BUFFERS:
837        {
838            CHECK_OMX_INTERFACE(IOMX, data, reply);
839
840            node_id node = (node_id)data.readInt32();
841            OMX_U32 port_index = data.readInt32();
842            OMX_BOOL graphic = (OMX_BOOL)data.readInt32();
843            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
844
845            status_t err = enableNativeBuffers(node, port_index, graphic, enable);
846            reply->writeInt32(err);
847
848            return NO_ERROR;
849        }
850
851        case GET_GRAPHIC_BUFFER_USAGE:
852        {
853            CHECK_OMX_INTERFACE(IOMX, data, reply);
854
855            node_id node = (node_id)data.readInt32();
856            OMX_U32 port_index = data.readInt32();
857
858            OMX_U32 usage = 0;
859            status_t err = getGraphicBufferUsage(node, port_index, &usage);
860            reply->writeInt32(err);
861            reply->writeInt32(usage);
862
863            return NO_ERROR;
864        }
865
866        case USE_BUFFER:
867        {
868            CHECK_OMX_INTERFACE(IOMX, data, reply);
869
870            node_id node = (node_id)data.readInt32();
871            OMX_U32 port_index = data.readInt32();
872            sp<IMemory> params =
873                interface_cast<IMemory>(data.readStrongBinder());
874            OMX_U32 allottedSize = data.readInt32();
875
876            if (params == NULL) {
877                ALOGE("b/26392700");
878                reply->writeInt32(INVALID_OPERATION);
879                return NO_ERROR;
880            }
881
882            buffer_id buffer;
883            status_t err = useBuffer(node, port_index, params, &buffer, allottedSize);
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 USE_GRAPHIC_BUFFER:
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
902            buffer_id buffer;
903            status_t err = useGraphicBuffer(
904                    node, port_index, graphicBuffer, &buffer);
905            reply->writeInt32(err);
906
907            if (err == OK) {
908                reply->writeInt32((int32_t)buffer);
909            }
910
911            return NO_ERROR;
912        }
913
914        case UPDATE_GRAPHIC_BUFFER_IN_META:
915        {
916            CHECK_OMX_INTERFACE(IOMX, data, reply);
917
918            node_id node = (node_id)data.readInt32();
919            OMX_U32 port_index = data.readInt32();
920            sp<GraphicBuffer> graphicBuffer = new GraphicBuffer();
921            data.read(*graphicBuffer);
922            buffer_id buffer = (buffer_id)data.readInt32();
923
924            status_t err = updateGraphicBufferInMeta(
925                    node, port_index, graphicBuffer, buffer);
926            reply->writeInt32(err);
927
928            return NO_ERROR;
929        }
930
931        case UPDATE_NATIVE_HANDLE_IN_META:
932        {
933            CHECK_OMX_INTERFACE(IOMX, data, reply);
934
935            node_id node = (node_id)data.readInt32();
936            OMX_U32 port_index = data.readInt32();
937            native_handle *handle = NULL;
938            if (data.readInt32()) {
939                handle = data.readNativeHandle();
940            }
941            buffer_id buffer = (buffer_id)data.readInt32();
942
943            status_t err = updateNativeHandleInMeta(
944                    node, port_index, NativeHandle::create(handle, true /* ownshandle */), buffer);
945            reply->writeInt32(err);
946
947            return NO_ERROR;
948        }
949
950        case CREATE_INPUT_SURFACE:
951        {
952            CHECK_OMX_INTERFACE(IOMX, data, reply);
953
954            node_id node = (node_id)data.readInt32();
955            OMX_U32 port_index = data.readInt32();
956            android_dataspace dataSpace = (android_dataspace)data.readInt32();
957
958            sp<IGraphicBufferProducer> bufferProducer;
959            MetadataBufferType type = kMetadataBufferTypeInvalid;
960            status_t err = createInputSurface(node, port_index, dataSpace, &bufferProducer, &type);
961
962            if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
963                android_errorWriteLog(0x534e4554, "26324358");
964            }
965
966            reply->writeInt32(type);
967            reply->writeInt32(err);
968
969            if (err == OK) {
970                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
971            }
972
973            return NO_ERROR;
974        }
975
976        case CREATE_PERSISTENT_INPUT_SURFACE:
977        {
978            CHECK_OMX_INTERFACE(IOMX, data, reply);
979
980            sp<IGraphicBufferProducer> bufferProducer;
981            sp<IGraphicBufferConsumer> bufferConsumer;
982            status_t err = createPersistentInputSurface(
983                    &bufferProducer, &bufferConsumer);
984
985            reply->writeInt32(err);
986
987            if (err == OK) {
988                reply->writeStrongBinder(IInterface::asBinder(bufferProducer));
989                reply->writeStrongBinder(IInterface::asBinder(bufferConsumer));
990            }
991
992            return NO_ERROR;
993        }
994
995        case SET_INPUT_SURFACE:
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
1002            sp<IGraphicBufferConsumer> bufferConsumer =
1003                    interface_cast<IGraphicBufferConsumer>(data.readStrongBinder());
1004
1005            MetadataBufferType type = kMetadataBufferTypeInvalid;
1006
1007            status_t err = INVALID_OPERATION;
1008            if (bufferConsumer == NULL) {
1009                ALOGE("b/26392700");
1010            } else {
1011                err = setInputSurface(node, port_index, bufferConsumer, &type);
1012
1013                if ((err != OK) && (type == kMetadataBufferTypeInvalid)) {
1014                   android_errorWriteLog(0x534e4554, "26324358");
1015                }
1016            }
1017
1018            reply->writeInt32(type);
1019            reply->writeInt32(err);
1020            return NO_ERROR;
1021        }
1022
1023        case SIGNAL_END_OF_INPUT_STREAM:
1024        {
1025            CHECK_OMX_INTERFACE(IOMX, data, reply);
1026
1027            node_id node = (node_id)data.readInt32();
1028
1029            status_t err = signalEndOfInputStream(node);
1030            reply->writeInt32(err);
1031
1032            return NO_ERROR;
1033        }
1034
1035        case STORE_META_DATA_IN_BUFFERS:
1036        {
1037            CHECK_OMX_INTERFACE(IOMX, data, reply);
1038
1039            node_id node = (node_id)data.readInt32();
1040            OMX_U32 port_index = data.readInt32();
1041            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
1042
1043            MetadataBufferType type = kMetadataBufferTypeInvalid;
1044            status_t err = storeMetaDataInBuffers(node, port_index, enable, &type);
1045
1046            reply->writeInt32(type);
1047            reply->writeInt32(err);
1048
1049            return NO_ERROR;
1050        }
1051
1052        case PREPARE_FOR_ADAPTIVE_PLAYBACK:
1053        {
1054            CHECK_OMX_INTERFACE(IOMX, data, reply);
1055
1056            node_id node = (node_id)data.readInt32();
1057            OMX_U32 port_index = data.readInt32();
1058            OMX_BOOL enable = (OMX_BOOL)data.readInt32();
1059            OMX_U32 max_width = data.readInt32();
1060            OMX_U32 max_height = data.readInt32();
1061
1062            status_t err = prepareForAdaptivePlayback(
1063                    node, port_index, enable, max_width, max_height);
1064            reply->writeInt32(err);
1065
1066            return NO_ERROR;
1067        }
1068
1069        case CONFIGURE_VIDEO_TUNNEL_MODE:
1070        {
1071            CHECK_OMX_INTERFACE(IOMX, data, reply);
1072
1073            node_id node = (node_id)data.readInt32();
1074            OMX_U32 port_index = data.readInt32();
1075            OMX_BOOL tunneled = (OMX_BOOL)data.readInt32();
1076            OMX_U32 audio_hw_sync = data.readInt32();
1077
1078            native_handle_t *sideband_handle = NULL;
1079            status_t err = configureVideoTunnelMode(
1080                    node, port_index, tunneled, audio_hw_sync, &sideband_handle);
1081            reply->writeInt32(err);
1082            if(err == OK){
1083                reply->writeNativeHandle(sideband_handle);
1084            }
1085
1086            return NO_ERROR;
1087        }
1088
1089        case ALLOC_SECURE_BUFFER:
1090        {
1091            CHECK_OMX_INTERFACE(IOMX, data, reply);
1092
1093            node_id node = (node_id)data.readInt32();
1094            OMX_U32 port_index = data.readInt32();
1095            if (!isSecure(node) || port_index != 0 /* kPortIndexInput */) {
1096                ALOGE("b/24310423");
1097                reply->writeInt32(INVALID_OPERATION);
1098                return NO_ERROR;
1099            }
1100
1101            size_t size = data.readInt64();
1102
1103            buffer_id buffer;
1104            void *buffer_data = NULL;
1105            native_handle_t *native_handle = NULL;
1106            status_t err = allocateSecureBuffer(
1107                    node, port_index, size, &buffer, &buffer_data, &native_handle);
1108            reply->writeInt32(err);
1109
1110            if (err == OK) {
1111                reply->writeInt32((int32_t)buffer);
1112                reply->writeInt64((uintptr_t)buffer_data);
1113                if (buffer_data == NULL) {
1114                    reply->writeNativeHandle(native_handle);
1115                }
1116            }
1117
1118            return NO_ERROR;
1119        }
1120
1121        case ALLOC_BUFFER_WITH_BACKUP:
1122        {
1123            CHECK_OMX_INTERFACE(IOMX, data, reply);
1124
1125            node_id node = (node_id)data.readInt32();
1126            OMX_U32 port_index = data.readInt32();
1127            sp<IMemory> params =
1128                interface_cast<IMemory>(data.readStrongBinder());
1129            OMX_U32 allottedSize = data.readInt32();
1130
1131            if (params == NULL) {
1132                ALOGE("b/26392700");
1133                reply->writeInt32(INVALID_OPERATION);
1134                return NO_ERROR;
1135            }
1136
1137            buffer_id buffer;
1138            status_t err = allocateBufferWithBackup(
1139                    node, port_index, params, &buffer, allottedSize);
1140
1141            reply->writeInt32(err);
1142
1143            if (err == OK) {
1144                reply->writeInt32((int32_t)buffer);
1145            }
1146
1147            return NO_ERROR;
1148        }
1149
1150        case FREE_BUFFER:
1151        {
1152            CHECK_OMX_INTERFACE(IOMX, data, reply);
1153
1154            node_id node = (node_id)data.readInt32();
1155            OMX_U32 port_index = data.readInt32();
1156            buffer_id buffer = (buffer_id)data.readInt32();
1157            reply->writeInt32(freeBuffer(node, port_index, buffer));
1158
1159            return NO_ERROR;
1160        }
1161
1162        case FILL_BUFFER:
1163        {
1164            CHECK_OMX_INTERFACE(IOMX, data, reply);
1165
1166            node_id node = (node_id)data.readInt32();
1167            buffer_id buffer = (buffer_id)data.readInt32();
1168            bool haveFence = data.readInt32();
1169            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1170            reply->writeInt32(fillBuffer(node, buffer, fenceFd));
1171
1172            return NO_ERROR;
1173        }
1174
1175        case EMPTY_BUFFER:
1176        {
1177            CHECK_OMX_INTERFACE(IOMX, data, reply);
1178
1179            node_id node = (node_id)data.readInt32();
1180            buffer_id buffer = (buffer_id)data.readInt32();
1181            OMX_U32 range_offset = data.readInt32();
1182            OMX_U32 range_length = data.readInt32();
1183            OMX_U32 flags = data.readInt32();
1184            OMX_TICKS timestamp = data.readInt64();
1185            bool haveFence = data.readInt32();
1186            int fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1187            reply->writeInt32(emptyBuffer(
1188                    node, buffer, range_offset, range_length, flags, timestamp, fenceFd));
1189
1190            return NO_ERROR;
1191        }
1192
1193        case GET_EXTENSION_INDEX:
1194        {
1195            CHECK_OMX_INTERFACE(IOMX, data, reply);
1196
1197            node_id node = (node_id)data.readInt32();
1198            const char *parameter_name = data.readCString();
1199
1200            if (parameter_name == NULL) {
1201                ALOGE("b/26392700");
1202                reply->writeInt32(INVALID_OPERATION);
1203                return NO_ERROR;
1204            }
1205
1206            OMX_INDEXTYPE index;
1207            status_t err = getExtensionIndex(node, parameter_name, &index);
1208
1209            reply->writeInt32(err);
1210
1211            if (err == OK) {
1212                reply->writeInt32(index);
1213            }
1214
1215            return OK;
1216        }
1217
1218        default:
1219            return BBinder::onTransact(code, data, reply, flags);
1220    }
1221}
1222
1223////////////////////////////////////////////////////////////////////////////////
1224
1225class BpOMXObserver : public BpInterface<IOMXObserver> {
1226public:
1227    BpOMXObserver(const sp<IBinder> &impl)
1228        : BpInterface<IOMXObserver>(impl) {
1229    }
1230
1231    virtual void onMessages(const std::list<omx_message> &messages) {
1232        Parcel data, reply;
1233        std::list<omx_message>::const_iterator it = messages.cbegin();
1234        bool first = true;
1235        while (it != messages.cend()) {
1236            const omx_message &msg = *it++;
1237            if (first) {
1238                data.writeInterfaceToken(IOMXObserver::getInterfaceDescriptor());
1239                data.writeInt32(msg.node);
1240                first = false;
1241            }
1242            data.writeInt32(msg.fenceFd >= 0);
1243            if (msg.fenceFd >= 0) {
1244                data.writeFileDescriptor(msg.fenceFd, true /* takeOwnership */);
1245            }
1246            data.writeInt32(msg.type);
1247            data.write(&msg.u, sizeof(msg.u));
1248            ALOGV("onMessage writing message %d, size %zu", msg.type, sizeof(msg));
1249        }
1250        if (!first) {
1251            data.writeInt32(-1); // mark end
1252            remote()->transact(OBSERVER_ON_MSG, data, &reply, IBinder::FLAG_ONEWAY);
1253        }
1254    }
1255};
1256
1257IMPLEMENT_META_INTERFACE(OMXObserver, "android.hardware.IOMXObserver");
1258
1259status_t BnOMXObserver::onTransact(
1260    uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
1261    switch (code) {
1262        case OBSERVER_ON_MSG:
1263        {
1264            CHECK_OMX_INTERFACE(IOMXObserver, data, reply);
1265            IOMX::node_id node = data.readInt32();
1266            std::list<omx_message> messages;
1267            status_t err = FAILED_TRANSACTION; // must receive at least one message
1268            do {
1269                int haveFence = data.readInt32();
1270                if (haveFence < 0) { // we use -1 to mark end of messages
1271                    break;
1272                }
1273                omx_message msg;
1274                msg.node = node;
1275                msg.fenceFd = haveFence ? ::dup(data.readFileDescriptor()) : -1;
1276                msg.type = (typeof(msg.type))data.readInt32();
1277                err = data.read(&msg.u, sizeof(msg.u));
1278                ALOGV("onTransact reading message %d, size %zu", msg.type, sizeof(msg));
1279                messages.push_back(msg);
1280            } while (err == OK);
1281
1282            if (err == OK) {
1283                onMessages(messages);
1284            }
1285
1286            return err;
1287        }
1288
1289        default:
1290            return BBinder::onTransact(code, data, reply, flags);
1291    }
1292}
1293
1294}  // namespace android
1295