MediaCodec.cpp revision 52dfbee90cc3c4426428318e06a92774f5201198 
1/*
2 * Copyright 2012, 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 "MediaCodec"
19#include <inttypes.h>
20
21#include "include/avc_utils.h"
22#include "include/SoftwareRenderer.h"
23
24#include <binder/IBatteryStats.h>
25#include <binder/IServiceManager.h>
26#include <gui/Surface.h>
27#include <media/ICrypto.h>
28#include <media/stagefright/foundation/ABuffer.h>
29#include <media/stagefright/foundation/ADebug.h>
30#include <media/stagefright/foundation/AMessage.h>
31#include <media/stagefright/foundation/AString.h>
32#include <media/stagefright/foundation/hexdump.h>
33#include <media/stagefright/ACodec.h>
34#include <media/stagefright/BufferProducerWrapper.h>
35#include <media/stagefright/MediaCodec.h>
36#include <media/stagefright/MediaCodecList.h>
37#include <media/stagefright/MediaDefs.h>
38#include <media/stagefright/MediaErrors.h>
39#include <media/stagefright/MetaData.h>
40#include <media/stagefright/NativeWindowWrapper.h>
41#include <private/android_filesystem_config.h>
42#include <utils/Log.h>
43#include <utils/Singleton.h>
44
45namespace android {
46
47struct MediaCodec::BatteryNotifier : public Singleton<BatteryNotifier> {
48    BatteryNotifier();
49
50    void noteStartVideo();
51    void noteStopVideo();
52    void noteStartAudio();
53    void noteStopAudio();
54
55private:
56    int32_t mVideoRefCount;
57    int32_t mAudioRefCount;
58    sp<IBatteryStats> mBatteryStatService;
59};
60
61ANDROID_SINGLETON_STATIC_INSTANCE(MediaCodec::BatteryNotifier)
62
63MediaCodec::BatteryNotifier::BatteryNotifier() :
64    mVideoRefCount(0),
65    mAudioRefCount(0) {
66    // get battery service
67    const sp<IServiceManager> sm(defaultServiceManager());
68    if (sm != NULL) {
69        const String16 name("batterystats");
70        mBatteryStatService = interface_cast<IBatteryStats>(sm->getService(name));
71        if (mBatteryStatService == NULL) {
72            ALOGE("batterystats service unavailable!");
73        }
74    }
75}
76
77void MediaCodec::BatteryNotifier::noteStartVideo() {
78    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
79        mBatteryStatService->noteStartVideo(AID_MEDIA);
80    }
81    mVideoRefCount++;
82}
83
84void MediaCodec::BatteryNotifier::noteStopVideo() {
85    if (mVideoRefCount == 0) {
86        ALOGW("BatteryNotifier::noteStop(): video refcount is broken!");
87        return;
88    }
89
90    mVideoRefCount--;
91    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
92        mBatteryStatService->noteStopVideo(AID_MEDIA);
93    }
94}
95
96void MediaCodec::BatteryNotifier::noteStartAudio() {
97    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
98        mBatteryStatService->noteStartAudio(AID_MEDIA);
99    }
100    mAudioRefCount++;
101}
102
103void MediaCodec::BatteryNotifier::noteStopAudio() {
104    if (mAudioRefCount == 0) {
105        ALOGW("BatteryNotifier::noteStop(): audio refcount is broken!");
106        return;
107    }
108
109    mAudioRefCount--;
110    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
111        mBatteryStatService->noteStopAudio(AID_MEDIA);
112    }
113}
114// static
115sp<MediaCodec> MediaCodec::CreateByType(
116        const sp<ALooper> &looper, const char *mime, bool encoder, status_t *err) {
117    sp<MediaCodec> codec = new MediaCodec(looper);
118
119    const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
120    if (err != NULL) {
121        *err = ret;
122    }
123    return ret == OK ? codec : NULL; // NULL deallocates codec.
124}
125
126// static
127sp<MediaCodec> MediaCodec::CreateByComponentName(
128        const sp<ALooper> &looper, const char *name, status_t *err) {
129    sp<MediaCodec> codec = new MediaCodec(looper);
130
131    const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
132    if (err != NULL) {
133        *err = ret;
134    }
135    return ret == OK ? codec : NULL; // NULL deallocates codec.
136}
137
138MediaCodec::MediaCodec(const sp<ALooper> &looper)
139    : mState(UNINITIALIZED),
140      mLooper(looper),
141      mCodec(NULL),
142      mReplyID(0),
143      mFlags(0),
144      mStickyError(OK),
145      mSoftRenderer(NULL),
146      mBatteryStatNotified(false),
147      mIsVideo(false),
148      mDequeueInputTimeoutGeneration(0),
149      mDequeueInputReplyID(0),
150      mDequeueOutputTimeoutGeneration(0),
151      mDequeueOutputReplyID(0),
152      mHaveInputSurface(false) {
153}
154
155MediaCodec::~MediaCodec() {
156    CHECK_EQ(mState, UNINITIALIZED);
157}
158
159// static
160status_t MediaCodec::PostAndAwaitResponse(
161        const sp<AMessage> &msg, sp<AMessage> *response) {
162    status_t err = msg->postAndAwaitResponse(response);
163
164    if (err != OK) {
165        return err;
166    }
167
168    if (!(*response)->findInt32("err", &err)) {
169        err = OK;
170    }
171
172    return err;
173}
174
175// static
176void MediaCodec::PostReplyWithError(int32_t replyID, int32_t err) {
177    sp<AMessage> response = new AMessage;
178    response->setInt32("err", err);
179    response->postReply(replyID);
180}
181
182status_t MediaCodec::init(const AString &name, bool nameIsType, bool encoder) {
183    // save init parameters for reset
184    mInitName = name;
185    mInitNameIsType = nameIsType;
186    mInitIsEncoder = encoder;
187
188    // Current video decoders do not return from OMX_FillThisBuffer
189    // quickly, violating the OpenMAX specs, until that is remedied
190    // we need to invest in an extra looper to free the main event
191    // queue.
192    mCodec = new ACodec;
193    bool needDedicatedLooper = false;
194    if (nameIsType && !strncasecmp(name.c_str(), "video/", 6)) {
195        needDedicatedLooper = true;
196    } else {
197        AString tmp = name;
198        if (tmp.endsWith(".secure")) {
199            tmp.erase(tmp.size() - 7, 7);
200        }
201        const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
202        ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
203        if (codecIdx >= 0) {
204            const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
205            Vector<AString> mimes;
206            info->getSupportedMimes(&mimes);
207            for (size_t i = 0; i < mimes.size(); i++) {
208                if (mimes[i].startsWith("video/")) {
209                    needDedicatedLooper = true;
210                    break;
211                }
212            }
213        }
214    }
215
216    if (needDedicatedLooper) {
217        if (mCodecLooper == NULL) {
218            mCodecLooper = new ALooper;
219            mCodecLooper->setName("CodecLooper");
220            mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
221        }
222
223        mCodecLooper->registerHandler(mCodec);
224    } else {
225        mLooper->registerHandler(mCodec);
226    }
227
228    mLooper->registerHandler(this);
229
230    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, id()));
231
232    sp<AMessage> msg = new AMessage(kWhatInit, id());
233    msg->setString("name", name);
234    msg->setInt32("nameIsType", nameIsType);
235
236    if (nameIsType) {
237        msg->setInt32("encoder", encoder);
238    }
239
240    sp<AMessage> response;
241    return PostAndAwaitResponse(msg, &response);
242}
243
244status_t MediaCodec::setCallback(const sp<AMessage> &callback) {
245    sp<AMessage> msg = new AMessage(kWhatSetCallback, id());
246    msg->setMessage("callback", callback);
247
248    sp<AMessage> response;
249    return PostAndAwaitResponse(msg, &response);
250}
251
252status_t MediaCodec::configure(
253        const sp<AMessage> &format,
254        const sp<Surface> &nativeWindow,
255        const sp<ICrypto> &crypto,
256        uint32_t flags) {
257    sp<AMessage> msg = new AMessage(kWhatConfigure, id());
258
259    msg->setMessage("format", format);
260    msg->setInt32("flags", flags);
261
262    if (nativeWindow != NULL) {
263        msg->setObject(
264                "native-window",
265                new NativeWindowWrapper(nativeWindow));
266    }
267
268    if (crypto != NULL) {
269        msg->setPointer("crypto", crypto.get());
270    }
271
272    sp<AMessage> response;
273    status_t err = PostAndAwaitResponse(msg, &response);
274
275    if (err != OK && err != INVALID_OPERATION) {
276        // MediaCodec now set state to UNINITIALIZED upon any fatal error.
277        // To maintain backward-compatibility, do a reset() to put codec
278        // back into INITIALIZED state.
279        // But don't reset if the err is INVALID_OPERATION, which means
280        // the configure failure is due to wrong state.
281
282        ALOGE("configure failed with err 0x%08x, resetting...", err);
283        reset();
284    }
285
286    return err;
287}
288
289status_t MediaCodec::createInputSurface(
290        sp<IGraphicBufferProducer>* bufferProducer) {
291    sp<AMessage> msg = new AMessage(kWhatCreateInputSurface, id());
292
293    sp<AMessage> response;
294    status_t err = PostAndAwaitResponse(msg, &response);
295    if (err == NO_ERROR) {
296        // unwrap the sp<IGraphicBufferProducer>
297        sp<RefBase> obj;
298        bool found = response->findObject("input-surface", &obj);
299        CHECK(found);
300        sp<BufferProducerWrapper> wrapper(
301                static_cast<BufferProducerWrapper*>(obj.get()));
302        *bufferProducer = wrapper->getBufferProducer();
303    } else {
304        ALOGW("createInputSurface failed, err=%d", err);
305    }
306    return err;
307}
308
309status_t MediaCodec::start() {
310    sp<AMessage> msg = new AMessage(kWhatStart, id());
311
312    sp<AMessage> response;
313    return PostAndAwaitResponse(msg, &response);
314}
315
316status_t MediaCodec::stop() {
317    sp<AMessage> msg = new AMessage(kWhatStop, id());
318
319    sp<AMessage> response;
320    return PostAndAwaitResponse(msg, &response);
321}
322
323status_t MediaCodec::release() {
324    sp<AMessage> msg = new AMessage(kWhatRelease, id());
325
326    sp<AMessage> response;
327    return PostAndAwaitResponse(msg, &response);
328}
329
330status_t MediaCodec::reset() {
331    /* When external-facing MediaCodec object is created,
332       it is already initialized.  Thus, reset is essentially
333       release() followed by init(), plus clearing the state */
334
335    status_t err = release();
336
337    // unregister handlers
338    if (mCodec != NULL) {
339        if (mCodecLooper != NULL) {
340            mCodecLooper->unregisterHandler(mCodec->id());
341        } else {
342            mLooper->unregisterHandler(mCodec->id());
343        }
344        mCodec = NULL;
345    }
346    mLooper->unregisterHandler(id());
347
348    mFlags = 0;    // clear all flags
349    mStickyError = OK;
350
351    // reset state not reset by setState(UNINITIALIZED)
352    mReplyID = 0;
353    mDequeueInputReplyID = 0;
354    mDequeueOutputReplyID = 0;
355    mDequeueInputTimeoutGeneration = 0;
356    mDequeueOutputTimeoutGeneration = 0;
357    mHaveInputSurface = false;
358
359    if (err == OK) {
360        err = init(mInitName, mInitNameIsType, mInitIsEncoder);
361    }
362    return err;
363}
364
365status_t MediaCodec::queueInputBuffer(
366        size_t index,
367        size_t offset,
368        size_t size,
369        int64_t presentationTimeUs,
370        uint32_t flags,
371        AString *errorDetailMsg) {
372    if (errorDetailMsg != NULL) {
373        errorDetailMsg->clear();
374    }
375
376    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
377    msg->setSize("index", index);
378    msg->setSize("offset", offset);
379    msg->setSize("size", size);
380    msg->setInt64("timeUs", presentationTimeUs);
381    msg->setInt32("flags", flags);
382    msg->setPointer("errorDetailMsg", errorDetailMsg);
383
384    sp<AMessage> response;
385    return PostAndAwaitResponse(msg, &response);
386}
387
388status_t MediaCodec::queueSecureInputBuffer(
389        size_t index,
390        size_t offset,
391        const CryptoPlugin::SubSample *subSamples,
392        size_t numSubSamples,
393        const uint8_t key[16],
394        const uint8_t iv[16],
395        CryptoPlugin::Mode mode,
396        int64_t presentationTimeUs,
397        uint32_t flags,
398        AString *errorDetailMsg) {
399    if (errorDetailMsg != NULL) {
400        errorDetailMsg->clear();
401    }
402
403    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
404    msg->setSize("index", index);
405    msg->setSize("offset", offset);
406    msg->setPointer("subSamples", (void *)subSamples);
407    msg->setSize("numSubSamples", numSubSamples);
408    msg->setPointer("key", (void *)key);
409    msg->setPointer("iv", (void *)iv);
410    msg->setInt32("mode", mode);
411    msg->setInt64("timeUs", presentationTimeUs);
412    msg->setInt32("flags", flags);
413    msg->setPointer("errorDetailMsg", errorDetailMsg);
414
415    sp<AMessage> response;
416    status_t err = PostAndAwaitResponse(msg, &response);
417
418    return err;
419}
420
421status_t MediaCodec::dequeueInputBuffer(size_t *index, int64_t timeoutUs) {
422    sp<AMessage> msg = new AMessage(kWhatDequeueInputBuffer, id());
423    msg->setInt64("timeoutUs", timeoutUs);
424
425    sp<AMessage> response;
426    status_t err;
427    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
428        return err;
429    }
430
431    CHECK(response->findSize("index", index));
432
433    return OK;
434}
435
436status_t MediaCodec::dequeueOutputBuffer(
437        size_t *index,
438        size_t *offset,
439        size_t *size,
440        int64_t *presentationTimeUs,
441        uint32_t *flags,
442        int64_t timeoutUs) {
443    sp<AMessage> msg = new AMessage(kWhatDequeueOutputBuffer, id());
444    msg->setInt64("timeoutUs", timeoutUs);
445
446    sp<AMessage> response;
447    status_t err;
448    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
449        return err;
450    }
451
452    CHECK(response->findSize("index", index));
453    CHECK(response->findSize("offset", offset));
454    CHECK(response->findSize("size", size));
455    CHECK(response->findInt64("timeUs", presentationTimeUs));
456    CHECK(response->findInt32("flags", (int32_t *)flags));
457
458    return OK;
459}
460
461status_t MediaCodec::renderOutputBufferAndRelease(size_t index) {
462    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
463    msg->setSize("index", index);
464    msg->setInt32("render", true);
465
466    sp<AMessage> response;
467    return PostAndAwaitResponse(msg, &response);
468}
469
470status_t MediaCodec::renderOutputBufferAndRelease(size_t index, int64_t timestampNs) {
471    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
472    msg->setSize("index", index);
473    msg->setInt32("render", true);
474    msg->setInt64("timestampNs", timestampNs);
475
476    sp<AMessage> response;
477    return PostAndAwaitResponse(msg, &response);
478}
479
480status_t MediaCodec::releaseOutputBuffer(size_t index) {
481    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
482    msg->setSize("index", index);
483
484    sp<AMessage> response;
485    return PostAndAwaitResponse(msg, &response);
486}
487
488status_t MediaCodec::signalEndOfInputStream() {
489    sp<AMessage> msg = new AMessage(kWhatSignalEndOfInputStream, id());
490
491    sp<AMessage> response;
492    return PostAndAwaitResponse(msg, &response);
493}
494
495status_t MediaCodec::getOutputFormat(sp<AMessage> *format) const {
496    sp<AMessage> msg = new AMessage(kWhatGetOutputFormat, id());
497
498    sp<AMessage> response;
499    status_t err;
500    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
501        return err;
502    }
503
504    CHECK(response->findMessage("format", format));
505
506    return OK;
507}
508
509status_t MediaCodec::getInputFormat(sp<AMessage> *format) const {
510    sp<AMessage> msg = new AMessage(kWhatGetInputFormat, id());
511
512    sp<AMessage> response;
513    status_t err;
514    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
515        return err;
516    }
517
518    CHECK(response->findMessage("format", format));
519
520    return OK;
521}
522
523status_t MediaCodec::getName(AString *name) const {
524    sp<AMessage> msg = new AMessage(kWhatGetName, id());
525
526    sp<AMessage> response;
527    status_t err;
528    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
529        return err;
530    }
531
532    CHECK(response->findString("name", name));
533
534    return OK;
535}
536
537status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
538    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
539    msg->setInt32("portIndex", kPortIndexInput);
540    msg->setPointer("buffers", buffers);
541
542    sp<AMessage> response;
543    return PostAndAwaitResponse(msg, &response);
544}
545
546status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
547    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
548    msg->setInt32("portIndex", kPortIndexOutput);
549    msg->setPointer("buffers", buffers);
550
551    sp<AMessage> response;
552    return PostAndAwaitResponse(msg, &response);
553}
554
555status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
556    sp<AMessage> format;
557    return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
558}
559
560status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
561    sp<ABuffer> buffer;
562    return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
563}
564
565status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
566    sp<AMessage> format;
567    return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
568}
569
570bool MediaCodec::isExecuting() const {
571    return mState == STARTED || mState == FLUSHED;
572}
573
574status_t MediaCodec::getBufferAndFormat(
575        size_t portIndex, size_t index,
576        sp<ABuffer> *buffer, sp<AMessage> *format) {
577    // use mutex instead of a context switch
578
579    buffer->clear();
580    format->clear();
581    if (!isExecuting()) {
582        return INVALID_OPERATION;
583    }
584
585    // we do not want mPortBuffers to change during this section
586    // we also don't want mOwnedByClient to change during this
587    Mutex::Autolock al(mBufferLock);
588    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
589    if (index < buffers->size()) {
590        const BufferInfo &info = buffers->itemAt(index);
591        if (info.mOwnedByClient) {
592            // by the time buffers array is initialized, crypto is set
593            if (portIndex == kPortIndexInput && mCrypto != NULL) {
594                *buffer = info.mEncryptedData;
595            } else {
596                *buffer = info.mData;
597            }
598            *format = info.mFormat;
599        }
600    }
601    return OK;
602}
603
604status_t MediaCodec::flush() {
605    sp<AMessage> msg = new AMessage(kWhatFlush, id());
606
607    sp<AMessage> response;
608    return PostAndAwaitResponse(msg, &response);
609}
610
611status_t MediaCodec::requestIDRFrame() {
612    (new AMessage(kWhatRequestIDRFrame, id()))->post();
613
614    return OK;
615}
616
617void MediaCodec::requestActivityNotification(const sp<AMessage> &notify) {
618    sp<AMessage> msg = new AMessage(kWhatRequestActivityNotification, id());
619    msg->setMessage("notify", notify);
620    msg->post();
621}
622
623////////////////////////////////////////////////////////////////////////////////
624
625void MediaCodec::cancelPendingDequeueOperations() {
626    if (mFlags & kFlagDequeueInputPending) {
627        PostReplyWithError(mDequeueInputReplyID, INVALID_OPERATION);
628
629        ++mDequeueInputTimeoutGeneration;
630        mDequeueInputReplyID = 0;
631        mFlags &= ~kFlagDequeueInputPending;
632    }
633
634    if (mFlags & kFlagDequeueOutputPending) {
635        PostReplyWithError(mDequeueOutputReplyID, INVALID_OPERATION);
636
637        ++mDequeueOutputTimeoutGeneration;
638        mDequeueOutputReplyID = 0;
639        mFlags &= ~kFlagDequeueOutputPending;
640    }
641}
642
643bool MediaCodec::handleDequeueInputBuffer(uint32_t replyID, bool newRequest) {
644    if (!isExecuting() || (mFlags & kFlagIsAsync)
645            || (newRequest && (mFlags & kFlagDequeueInputPending))) {
646        PostReplyWithError(replyID, INVALID_OPERATION);
647        return true;
648    } else if (mFlags & kFlagStickyError) {
649        PostReplyWithError(replyID, getStickyError());
650        return true;
651    }
652
653    ssize_t index = dequeuePortBuffer(kPortIndexInput);
654
655    if (index < 0) {
656        CHECK_EQ(index, -EAGAIN);
657        return false;
658    }
659
660    sp<AMessage> response = new AMessage;
661    response->setSize("index", index);
662    response->postReply(replyID);
663
664    return true;
665}
666
667bool MediaCodec::handleDequeueOutputBuffer(uint32_t replyID, bool newRequest) {
668    sp<AMessage> response = new AMessage;
669
670    if (!isExecuting() || (mFlags & kFlagIsAsync)
671            || (newRequest && (mFlags & kFlagDequeueOutputPending))) {
672        response->setInt32("err", INVALID_OPERATION);
673    } else if (mFlags & kFlagStickyError) {
674        response->setInt32("err", getStickyError());
675    } else if (mFlags & kFlagOutputBuffersChanged) {
676        response->setInt32("err", INFO_OUTPUT_BUFFERS_CHANGED);
677        mFlags &= ~kFlagOutputBuffersChanged;
678    } else if (mFlags & kFlagOutputFormatChanged) {
679        response->setInt32("err", INFO_FORMAT_CHANGED);
680        mFlags &= ~kFlagOutputFormatChanged;
681    } else {
682        ssize_t index = dequeuePortBuffer(kPortIndexOutput);
683
684        if (index < 0) {
685            CHECK_EQ(index, -EAGAIN);
686            return false;
687        }
688
689        const sp<ABuffer> &buffer =
690            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
691
692        response->setSize("index", index);
693        response->setSize("offset", buffer->offset());
694        response->setSize("size", buffer->size());
695
696        int64_t timeUs;
697        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
698
699        response->setInt64("timeUs", timeUs);
700
701        int32_t omxFlags;
702        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
703
704        uint32_t flags = 0;
705        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
706            flags |= BUFFER_FLAG_SYNCFRAME;
707        }
708        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
709            flags |= BUFFER_FLAG_CODECCONFIG;
710        }
711        if (omxFlags & OMX_BUFFERFLAG_EOS) {
712            flags |= BUFFER_FLAG_EOS;
713        }
714
715        response->setInt32("flags", flags);
716    }
717
718    response->postReply(replyID);
719
720    return true;
721}
722
723void MediaCodec::onMessageReceived(const sp<AMessage> &msg) {
724    switch (msg->what()) {
725        case kWhatCodecNotify:
726        {
727            int32_t what;
728            CHECK(msg->findInt32("what", &what));
729
730            switch (what) {
731                case CodecBase::kWhatError:
732                {
733                    int32_t err, actionCode;
734                    CHECK(msg->findInt32("err", &err));
735                    CHECK(msg->findInt32("actionCode", &actionCode));
736
737                    ALOGE("Codec reported err %#x, actionCode %d, while in state %d",
738                            err, actionCode, mState);
739                    if (err == DEAD_OBJECT) {
740                        mFlags |= kFlagSawMediaServerDie;
741                        mFlags &= ~kFlagIsComponentAllocated;
742                    }
743
744                    bool sendErrorResponse = true;
745
746                    switch (mState) {
747                        case INITIALIZING:
748                        {
749                            setState(UNINITIALIZED);
750                            break;
751                        }
752
753                        case CONFIGURING:
754                        {
755                            setState(actionCode == ACTION_CODE_FATAL ?
756                                    UNINITIALIZED : INITIALIZED);
757                            break;
758                        }
759
760                        case STARTING:
761                        {
762                            setState(actionCode == ACTION_CODE_FATAL ?
763                                    UNINITIALIZED : CONFIGURED);
764                            break;
765                        }
766
767                        case STOPPING:
768                        case RELEASING:
769                        {
770                            // Ignore the error, assuming we'll still get
771                            // the shutdown complete notification.
772
773                            sendErrorResponse = false;
774
775                            if (mFlags & kFlagSawMediaServerDie) {
776                                // MediaServer died, there definitely won't
777                                // be a shutdown complete notification after
778                                // all.
779
780                                // note that we're directly going from
781                                // STOPPING->UNINITIALIZED, instead of the
782                                // usual STOPPING->INITIALIZED state.
783                                setState(UNINITIALIZED);
784                                if (mState == RELEASING) {
785                                    mComponentName.clear();
786                                }
787                                (new AMessage)->postReply(mReplyID);
788                            }
789                            break;
790                        }
791
792                        case FLUSHING:
793                        {
794                            if (actionCode == ACTION_CODE_FATAL) {
795                                setState(UNINITIALIZED);
796                            } else {
797                                setState(
798                                        (mFlags & kFlagIsAsync) ? FLUSHED : STARTED);
799                            }
800                            break;
801                        }
802
803                        case FLUSHED:
804                        case STARTED:
805                        {
806                            sendErrorResponse = false;
807
808                            setStickyError(err);
809                            postActivityNotificationIfPossible();
810
811                            cancelPendingDequeueOperations();
812
813                            if (mFlags & kFlagIsAsync) {
814                                onError(err, actionCode);
815                            }
816                            switch (actionCode) {
817                            case ACTION_CODE_TRANSIENT:
818                                break;
819                            case ACTION_CODE_RECOVERABLE:
820                                setState(INITIALIZED);
821                                break;
822                            default:
823                                setState(UNINITIALIZED);
824                                break;
825                            }
826                            break;
827                        }
828
829                        default:
830                        {
831                            sendErrorResponse = false;
832
833                            setStickyError(err);
834                            postActivityNotificationIfPossible();
835
836                            // actionCode in an uninitialized state is always fatal.
837                            if (mState == UNINITIALIZED) {
838                                actionCode = ACTION_CODE_FATAL;
839                            }
840                            if (mFlags & kFlagIsAsync) {
841                                onError(err, actionCode);
842                            }
843                            switch (actionCode) {
844                            case ACTION_CODE_TRANSIENT:
845                                break;
846                            case ACTION_CODE_RECOVERABLE:
847                                setState(INITIALIZED);
848                                break;
849                            default:
850                                setState(UNINITIALIZED);
851                                break;
852                            }
853                            break;
854                        }
855                    }
856
857                    if (sendErrorResponse) {
858                        PostReplyWithError(mReplyID, err);
859                    }
860                    break;
861                }
862
863                case CodecBase::kWhatComponentAllocated:
864                {
865                    CHECK_EQ(mState, INITIALIZING);
866                    setState(INITIALIZED);
867                    mFlags |= kFlagIsComponentAllocated;
868
869                    CHECK(msg->findString("componentName", &mComponentName));
870
871                    if (mComponentName.startsWith("OMX.google.")) {
872                        mFlags |= kFlagIsSoftwareCodec;
873                    } else {
874                        mFlags &= ~kFlagIsSoftwareCodec;
875                    }
876
877                    if (mComponentName.endsWith(".secure")) {
878                        mFlags |= kFlagIsSecure;
879                    } else {
880                        mFlags &= ~kFlagIsSecure;
881                    }
882
883                    (new AMessage)->postReply(mReplyID);
884                    break;
885                }
886
887                case CodecBase::kWhatComponentConfigured:
888                {
889                    CHECK_EQ(mState, CONFIGURING);
890
891                    // reset input surface flag
892                    mHaveInputSurface = false;
893
894                    CHECK(msg->findMessage("input-format", &mInputFormat));
895                    CHECK(msg->findMessage("output-format", &mOutputFormat));
896
897                    setState(CONFIGURED);
898                    (new AMessage)->postReply(mReplyID);
899                    break;
900                }
901
902                case CodecBase::kWhatInputSurfaceCreated:
903                {
904                    // response to initiateCreateInputSurface()
905                    status_t err = NO_ERROR;
906                    sp<AMessage> response = new AMessage();
907                    if (!msg->findInt32("err", &err)) {
908                        sp<RefBase> obj;
909                        msg->findObject("input-surface", &obj);
910                        CHECK(obj != NULL);
911                        response->setObject("input-surface", obj);
912                        mHaveInputSurface = true;
913                    } else {
914                        response->setInt32("err", err);
915                    }
916                    response->postReply(mReplyID);
917                    break;
918                }
919
920                case CodecBase::kWhatSignaledInputEOS:
921                {
922                    // response to signalEndOfInputStream()
923                    sp<AMessage> response = new AMessage();
924                    status_t err;
925                    if (msg->findInt32("err", &err)) {
926                        response->setInt32("err", err);
927                    }
928                    response->postReply(mReplyID);
929                    break;
930                }
931
932
933                case CodecBase::kWhatBuffersAllocated:
934                {
935                    Mutex::Autolock al(mBufferLock);
936                    int32_t portIndex;
937                    CHECK(msg->findInt32("portIndex", &portIndex));
938
939                    ALOGV("%s buffers allocated",
940                          portIndex == kPortIndexInput ? "input" : "output");
941
942                    CHECK(portIndex == kPortIndexInput
943                            || portIndex == kPortIndexOutput);
944
945                    mPortBuffers[portIndex].clear();
946
947                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
948
949                    sp<RefBase> obj;
950                    CHECK(msg->findObject("portDesc", &obj));
951
952                    sp<CodecBase::PortDescription> portDesc =
953                        static_cast<CodecBase::PortDescription *>(obj.get());
954
955                    size_t numBuffers = portDesc->countBuffers();
956
957                    for (size_t i = 0; i < numBuffers; ++i) {
958                        BufferInfo info;
959                        info.mBufferID = portDesc->bufferIDAt(i);
960                        info.mOwnedByClient = false;
961                        info.mData = portDesc->bufferAt(i);
962
963                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
964                            info.mEncryptedData =
965                                new ABuffer(info.mData->capacity());
966                        }
967
968                        buffers->push_back(info);
969                    }
970
971                    if (portIndex == kPortIndexOutput) {
972                        if (mState == STARTING) {
973                            // We're always allocating output buffers after
974                            // allocating input buffers, so this is a good
975                            // indication that now all buffers are allocated.
976                            setState(STARTED);
977                            (new AMessage)->postReply(mReplyID);
978                        } else {
979                            mFlags |= kFlagOutputBuffersChanged;
980                            postActivityNotificationIfPossible();
981                        }
982                    }
983                    break;
984                }
985
986                case CodecBase::kWhatOutputFormatChanged:
987                {
988                    ALOGV("codec output format changed");
989
990                    if (mSoftRenderer == NULL &&
991                            mNativeWindow != NULL &&
992                            (mFlags & kFlagIsSoftwareCodec)) {
993                        AString mime;
994                        CHECK(msg->findString("mime", &mime));
995
996                        if (mime.startsWithIgnoreCase("video/")) {
997                            mSoftRenderer = new SoftwareRenderer(mNativeWindow);
998                        }
999                    }
1000
1001                    mOutputFormat = msg;
1002
1003                    if (mFlags & kFlagIsEncoder) {
1004                        // Before we announce the format change we should
1005                        // collect codec specific data and amend the output
1006                        // format as necessary.
1007                        mFlags |= kFlagGatherCodecSpecificData;
1008                    } else if (mFlags & kFlagIsAsync) {
1009                        onOutputFormatChanged();
1010                    } else {
1011                        mFlags |= kFlagOutputFormatChanged;
1012                        postActivityNotificationIfPossible();
1013                    }
1014                    break;
1015                }
1016
1017                case CodecBase::kWhatFillThisBuffer:
1018                {
1019                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1020
1021                    if (mState == FLUSHING
1022                            || mState == STOPPING
1023                            || mState == RELEASING) {
1024                        returnBuffersToCodecOnPort(kPortIndexInput);
1025                        break;
1026                    }
1027
1028                    if (!mCSD.empty()) {
1029                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1030                        CHECK_GE(index, 0);
1031
1032                        // If codec specific data had been specified as
1033                        // part of the format in the call to configure and
1034                        // if there's more csd left, we submit it here
1035                        // clients only get access to input buffers once
1036                        // this data has been exhausted.
1037
1038                        status_t err = queueCSDInputBuffer(index);
1039
1040                        if (err != OK) {
1041                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1042                                  err);
1043
1044                            setStickyError(err);
1045                            postActivityNotificationIfPossible();
1046
1047                            cancelPendingDequeueOperations();
1048                        }
1049                        break;
1050                    }
1051
1052                    if (mFlags & kFlagIsAsync) {
1053                        if (!mHaveInputSurface) {
1054                            onInputBufferAvailable();
1055                        }
1056                    } else if (mFlags & kFlagDequeueInputPending) {
1057                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1058
1059                        ++mDequeueInputTimeoutGeneration;
1060                        mFlags &= ~kFlagDequeueInputPending;
1061                        mDequeueInputReplyID = 0;
1062                    } else {
1063                        postActivityNotificationIfPossible();
1064                    }
1065                    break;
1066                }
1067
1068                case CodecBase::kWhatDrainThisBuffer:
1069                {
1070                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1071
1072                    if (mState == FLUSHING
1073                            || mState == STOPPING
1074                            || mState == RELEASING) {
1075                        returnBuffersToCodecOnPort(kPortIndexOutput);
1076                        break;
1077                    }
1078
1079                    sp<ABuffer> buffer;
1080                    CHECK(msg->findBuffer("buffer", &buffer));
1081
1082                    int32_t omxFlags;
1083                    CHECK(msg->findInt32("flags", &omxFlags));
1084
1085                    buffer->meta()->setInt32("omxFlags", omxFlags);
1086
1087                    if (mFlags & kFlagGatherCodecSpecificData) {
1088                        // This is the very first output buffer after a
1089                        // format change was signalled, it'll either contain
1090                        // the one piece of codec specific data we can expect
1091                        // or there won't be codec specific data.
1092                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1093                            status_t err =
1094                                amendOutputFormatWithCodecSpecificData(buffer);
1095
1096                            if (err != OK) {
1097                                ALOGE("Codec spit out malformed codec "
1098                                      "specific data!");
1099                            }
1100                        }
1101
1102                        mFlags &= ~kFlagGatherCodecSpecificData;
1103                        if (mFlags & kFlagIsAsync) {
1104                            onOutputFormatChanged();
1105                        } else {
1106                            mFlags |= kFlagOutputFormatChanged;
1107                        }
1108                    }
1109
1110                    if (mFlags & kFlagIsAsync) {
1111                        onOutputBufferAvailable();
1112                    } else if (mFlags & kFlagDequeueOutputPending) {
1113                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1114
1115                        ++mDequeueOutputTimeoutGeneration;
1116                        mFlags &= ~kFlagDequeueOutputPending;
1117                        mDequeueOutputReplyID = 0;
1118                    } else {
1119                        postActivityNotificationIfPossible();
1120                    }
1121
1122                    break;
1123                }
1124
1125                case CodecBase::kWhatEOS:
1126                {
1127                    // We already notify the client of this by using the
1128                    // corresponding flag in "onOutputBufferReady".
1129                    break;
1130                }
1131
1132                case CodecBase::kWhatShutdownCompleted:
1133                {
1134                    if (mState == STOPPING) {
1135                        setState(INITIALIZED);
1136                    } else {
1137                        CHECK_EQ(mState, RELEASING);
1138                        setState(UNINITIALIZED);
1139                        mComponentName.clear();
1140                    }
1141                    mFlags &= ~kFlagIsComponentAllocated;
1142
1143                    (new AMessage)->postReply(mReplyID);
1144                    break;
1145                }
1146
1147                case CodecBase::kWhatFlushCompleted:
1148                {
1149                    if (mState != FLUSHING) {
1150                        ALOGW("received FlushCompleted message in state %d",
1151                                mState);
1152                        break;
1153                    }
1154
1155                    if (mFlags & kFlagIsAsync) {
1156                        setState(FLUSHED);
1157                    } else {
1158                        setState(STARTED);
1159                        mCodec->signalResume();
1160                    }
1161
1162                    (new AMessage)->postReply(mReplyID);
1163                    break;
1164                }
1165
1166                default:
1167                    TRESPASS();
1168            }
1169            break;
1170        }
1171
1172        case kWhatInit:
1173        {
1174            uint32_t replyID;
1175            CHECK(msg->senderAwaitsResponse(&replyID));
1176
1177            if (mState != UNINITIALIZED) {
1178                PostReplyWithError(replyID, INVALID_OPERATION);
1179                break;
1180            }
1181
1182            mReplyID = replyID;
1183            setState(INITIALIZING);
1184
1185            AString name;
1186            CHECK(msg->findString("name", &name));
1187
1188            int32_t nameIsType;
1189            int32_t encoder = false;
1190            CHECK(msg->findInt32("nameIsType", &nameIsType));
1191            if (nameIsType) {
1192                CHECK(msg->findInt32("encoder", &encoder));
1193            }
1194
1195            sp<AMessage> format = new AMessage;
1196
1197            if (nameIsType) {
1198                format->setString("mime", name.c_str());
1199                format->setInt32("encoder", encoder);
1200            } else {
1201                format->setString("componentName", name.c_str());
1202            }
1203
1204            mCodec->initiateAllocateComponent(format);
1205            break;
1206        }
1207
1208        case kWhatSetCallback:
1209        {
1210            uint32_t replyID;
1211            CHECK(msg->senderAwaitsResponse(&replyID));
1212
1213            if (mState == UNINITIALIZED
1214                    || mState == INITIALIZING
1215                    || isExecuting()) {
1216                // callback can't be set after codec is executing,
1217                // or before it's initialized (as the callback
1218                // will be cleared when it goes to INITIALIZED)
1219                PostReplyWithError(replyID, INVALID_OPERATION);
1220                break;
1221            }
1222
1223            sp<AMessage> callback;
1224            CHECK(msg->findMessage("callback", &callback));
1225
1226            mCallback = callback;
1227
1228            if (mCallback != NULL) {
1229                ALOGI("MediaCodec will operate in async mode");
1230                mFlags |= kFlagIsAsync;
1231            } else {
1232                mFlags &= ~kFlagIsAsync;
1233            }
1234
1235            sp<AMessage> response = new AMessage;
1236            response->postReply(replyID);
1237            break;
1238        }
1239
1240        case kWhatConfigure:
1241        {
1242            uint32_t replyID;
1243            CHECK(msg->senderAwaitsResponse(&replyID));
1244
1245            if (mState != INITIALIZED) {
1246                PostReplyWithError(replyID, INVALID_OPERATION);
1247                break;
1248            }
1249
1250            sp<RefBase> obj;
1251            if (!msg->findObject("native-window", &obj)) {
1252                obj.clear();
1253            }
1254
1255            sp<AMessage> format;
1256            CHECK(msg->findMessage("format", &format));
1257
1258            if (obj != NULL) {
1259                format->setObject("native-window", obj);
1260
1261                status_t err = setNativeWindow(
1262                    static_cast<NativeWindowWrapper *>(obj.get())
1263                        ->getSurfaceTextureClient());
1264
1265                if (err != OK) {
1266                    PostReplyWithError(replyID, err);
1267                    break;
1268                }
1269            } else {
1270                setNativeWindow(NULL);
1271            }
1272
1273            mReplyID = replyID;
1274            setState(CONFIGURING);
1275
1276            void *crypto;
1277            if (!msg->findPointer("crypto", &crypto)) {
1278                crypto = NULL;
1279            }
1280
1281            mCrypto = static_cast<ICrypto *>(crypto);
1282
1283            uint32_t flags;
1284            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1285
1286            if (flags & CONFIGURE_FLAG_ENCODE) {
1287                format->setInt32("encoder", true);
1288                mFlags |= kFlagIsEncoder;
1289            }
1290
1291            extractCSD(format);
1292
1293            mCodec->initiateConfigureComponent(format);
1294            break;
1295        }
1296
1297        case kWhatCreateInputSurface:
1298        {
1299            uint32_t replyID;
1300            CHECK(msg->senderAwaitsResponse(&replyID));
1301
1302            // Must be configured, but can't have been started yet.
1303            if (mState != CONFIGURED) {
1304                PostReplyWithError(replyID, INVALID_OPERATION);
1305                break;
1306            }
1307
1308            mReplyID = replyID;
1309            mCodec->initiateCreateInputSurface();
1310            break;
1311        }
1312
1313        case kWhatStart:
1314        {
1315            uint32_t replyID;
1316            CHECK(msg->senderAwaitsResponse(&replyID));
1317
1318            if (mState == FLUSHED) {
1319                mCodec->signalResume();
1320                PostReplyWithError(replyID, OK);
1321            } else if (mState != CONFIGURED) {
1322                PostReplyWithError(replyID, INVALID_OPERATION);
1323                break;
1324            }
1325
1326            mReplyID = replyID;
1327            setState(STARTING);
1328
1329            mCodec->initiateStart();
1330            break;
1331        }
1332
1333        case kWhatStop:
1334        case kWhatRelease:
1335        {
1336            State targetState =
1337                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1338
1339            uint32_t replyID;
1340            CHECK(msg->senderAwaitsResponse(&replyID));
1341
1342            if (!(mFlags & kFlagIsComponentAllocated) && mState != INITIALIZED
1343                    && mState != CONFIGURED && !isExecuting()) {
1344                // We may be in "UNINITIALIZED" state already and
1345                // also shutdown the encoder/decoder without the
1346                // client being aware of this if media server died while
1347                // we were being stopped. The client would assume that
1348                // after stop() returned, it would be safe to call release()
1349                // and it should be in this case, no harm to allow a release()
1350                // if we're already uninitialized.
1351                sp<AMessage> response = new AMessage;
1352                status_t err = mState == targetState ? OK : INVALID_OPERATION;
1353                response->setInt32("err", err);
1354                if (err == OK && targetState == UNINITIALIZED) {
1355                    mComponentName.clear();
1356                }
1357                response->postReply(replyID);
1358                break;
1359            }
1360
1361            if (mFlags & kFlagSawMediaServerDie) {
1362                // It's dead, Jim. Don't expect initiateShutdown to yield
1363                // any useful results now...
1364                setState(UNINITIALIZED);
1365                if (targetState == UNINITIALIZED) {
1366                    mComponentName.clear();
1367                }
1368                (new AMessage)->postReply(replyID);
1369                break;
1370            }
1371
1372            mReplyID = replyID;
1373            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1374
1375            mCodec->initiateShutdown(
1376                    msg->what() == kWhatStop /* keepComponentAllocated */);
1377
1378            returnBuffersToCodec();
1379            break;
1380        }
1381
1382        case kWhatDequeueInputBuffer:
1383        {
1384            uint32_t replyID;
1385            CHECK(msg->senderAwaitsResponse(&replyID));
1386
1387            if (mFlags & kFlagIsAsync) {
1388                ALOGE("dequeueOutputBuffer can't be used in async mode");
1389                PostReplyWithError(replyID, INVALID_OPERATION);
1390                break;
1391            }
1392
1393            if (mHaveInputSurface) {
1394                ALOGE("dequeueInputBuffer can't be used with input surface");
1395                PostReplyWithError(replyID, INVALID_OPERATION);
1396                break;
1397            }
1398
1399            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1400                break;
1401            }
1402
1403            int64_t timeoutUs;
1404            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1405
1406            if (timeoutUs == 0ll) {
1407                PostReplyWithError(replyID, -EAGAIN);
1408                break;
1409            }
1410
1411            mFlags |= kFlagDequeueInputPending;
1412            mDequeueInputReplyID = replyID;
1413
1414            if (timeoutUs > 0ll) {
1415                sp<AMessage> timeoutMsg =
1416                    new AMessage(kWhatDequeueInputTimedOut, id());
1417                timeoutMsg->setInt32(
1418                        "generation", ++mDequeueInputTimeoutGeneration);
1419                timeoutMsg->post(timeoutUs);
1420            }
1421            break;
1422        }
1423
1424        case kWhatDequeueInputTimedOut:
1425        {
1426            int32_t generation;
1427            CHECK(msg->findInt32("generation", &generation));
1428
1429            if (generation != mDequeueInputTimeoutGeneration) {
1430                // Obsolete
1431                break;
1432            }
1433
1434            CHECK(mFlags & kFlagDequeueInputPending);
1435
1436            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1437
1438            mFlags &= ~kFlagDequeueInputPending;
1439            mDequeueInputReplyID = 0;
1440            break;
1441        }
1442
1443        case kWhatQueueInputBuffer:
1444        {
1445            uint32_t replyID;
1446            CHECK(msg->senderAwaitsResponse(&replyID));
1447
1448            if (!isExecuting()) {
1449                PostReplyWithError(replyID, INVALID_OPERATION);
1450                break;
1451            } else if (mFlags & kFlagStickyError) {
1452                PostReplyWithError(replyID, getStickyError());
1453                break;
1454            }
1455
1456            status_t err = onQueueInputBuffer(msg);
1457
1458            PostReplyWithError(replyID, err);
1459            break;
1460        }
1461
1462        case kWhatDequeueOutputBuffer:
1463        {
1464            uint32_t replyID;
1465            CHECK(msg->senderAwaitsResponse(&replyID));
1466
1467            if (mFlags & kFlagIsAsync) {
1468                ALOGE("dequeueOutputBuffer can't be used in async mode");
1469                PostReplyWithError(replyID, INVALID_OPERATION);
1470                break;
1471            }
1472
1473            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1474                break;
1475            }
1476
1477            int64_t timeoutUs;
1478            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1479
1480            if (timeoutUs == 0ll) {
1481                PostReplyWithError(replyID, -EAGAIN);
1482                break;
1483            }
1484
1485            mFlags |= kFlagDequeueOutputPending;
1486            mDequeueOutputReplyID = replyID;
1487
1488            if (timeoutUs > 0ll) {
1489                sp<AMessage> timeoutMsg =
1490                    new AMessage(kWhatDequeueOutputTimedOut, id());
1491                timeoutMsg->setInt32(
1492                        "generation", ++mDequeueOutputTimeoutGeneration);
1493                timeoutMsg->post(timeoutUs);
1494            }
1495            break;
1496        }
1497
1498        case kWhatDequeueOutputTimedOut:
1499        {
1500            int32_t generation;
1501            CHECK(msg->findInt32("generation", &generation));
1502
1503            if (generation != mDequeueOutputTimeoutGeneration) {
1504                // Obsolete
1505                break;
1506            }
1507
1508            CHECK(mFlags & kFlagDequeueOutputPending);
1509
1510            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1511
1512            mFlags &= ~kFlagDequeueOutputPending;
1513            mDequeueOutputReplyID = 0;
1514            break;
1515        }
1516
1517        case kWhatReleaseOutputBuffer:
1518        {
1519            uint32_t replyID;
1520            CHECK(msg->senderAwaitsResponse(&replyID));
1521
1522            if (!isExecuting()) {
1523                PostReplyWithError(replyID, INVALID_OPERATION);
1524                break;
1525            } else if (mFlags & kFlagStickyError) {
1526                PostReplyWithError(replyID, getStickyError());
1527                break;
1528            }
1529
1530            status_t err = onReleaseOutputBuffer(msg);
1531
1532            PostReplyWithError(replyID, err);
1533            break;
1534        }
1535
1536        case kWhatSignalEndOfInputStream:
1537        {
1538            uint32_t replyID;
1539            CHECK(msg->senderAwaitsResponse(&replyID));
1540
1541            if (!isExecuting()) {
1542                PostReplyWithError(replyID, INVALID_OPERATION);
1543                break;
1544            } else if (mFlags & kFlagStickyError) {
1545                PostReplyWithError(replyID, getStickyError());
1546                break;
1547            }
1548
1549            mReplyID = replyID;
1550            mCodec->signalEndOfInputStream();
1551            break;
1552        }
1553
1554        case kWhatGetBuffers:
1555        {
1556            uint32_t replyID;
1557            CHECK(msg->senderAwaitsResponse(&replyID));
1558
1559            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1560                PostReplyWithError(replyID, INVALID_OPERATION);
1561                break;
1562            } else if (mFlags & kFlagStickyError) {
1563                PostReplyWithError(replyID, getStickyError());
1564                break;
1565            }
1566
1567            int32_t portIndex;
1568            CHECK(msg->findInt32("portIndex", &portIndex));
1569
1570            Vector<sp<ABuffer> > *dstBuffers;
1571            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1572
1573            dstBuffers->clear();
1574            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1575
1576            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1577                const BufferInfo &info = srcBuffers.itemAt(i);
1578
1579                dstBuffers->push_back(
1580                        (portIndex == kPortIndexInput && mCrypto != NULL)
1581                                ? info.mEncryptedData : info.mData);
1582            }
1583
1584            (new AMessage)->postReply(replyID);
1585            break;
1586        }
1587
1588        case kWhatFlush:
1589        {
1590            uint32_t replyID;
1591            CHECK(msg->senderAwaitsResponse(&replyID));
1592
1593            if (!isExecuting()) {
1594                PostReplyWithError(replyID, INVALID_OPERATION);
1595                break;
1596            } else if (mFlags & kFlagStickyError) {
1597                PostReplyWithError(replyID, getStickyError());
1598                break;
1599            }
1600
1601            mReplyID = replyID;
1602            // TODO: skip flushing if already FLUSHED
1603            setState(FLUSHING);
1604
1605            mCodec->signalFlush();
1606            returnBuffersToCodec();
1607            break;
1608        }
1609
1610        case kWhatGetInputFormat:
1611        case kWhatGetOutputFormat:
1612        {
1613            sp<AMessage> format =
1614                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1615
1616            uint32_t replyID;
1617            CHECK(msg->senderAwaitsResponse(&replyID));
1618
1619            if ((mState != CONFIGURED && mState != STARTING &&
1620                 mState != STARTED && mState != FLUSHING &&
1621                 mState != FLUSHED)
1622                    || format == NULL) {
1623                PostReplyWithError(replyID, INVALID_OPERATION);
1624                break;
1625            } else if (mFlags & kFlagStickyError) {
1626                PostReplyWithError(replyID, getStickyError());
1627                break;
1628            }
1629
1630            sp<AMessage> response = new AMessage;
1631            response->setMessage("format", format);
1632            response->postReply(replyID);
1633            break;
1634        }
1635
1636        case kWhatRequestIDRFrame:
1637        {
1638            mCodec->signalRequestIDRFrame();
1639            break;
1640        }
1641
1642        case kWhatRequestActivityNotification:
1643        {
1644            CHECK(mActivityNotify == NULL);
1645            CHECK(msg->findMessage("notify", &mActivityNotify));
1646
1647            postActivityNotificationIfPossible();
1648            break;
1649        }
1650
1651        case kWhatGetName:
1652        {
1653            uint32_t replyID;
1654            CHECK(msg->senderAwaitsResponse(&replyID));
1655
1656            if (mComponentName.empty()) {
1657                PostReplyWithError(replyID, INVALID_OPERATION);
1658                break;
1659            }
1660
1661            sp<AMessage> response = new AMessage;
1662            response->setString("name", mComponentName.c_str());
1663            response->postReply(replyID);
1664            break;
1665        }
1666
1667        case kWhatSetParameters:
1668        {
1669            uint32_t replyID;
1670            CHECK(msg->senderAwaitsResponse(&replyID));
1671
1672            sp<AMessage> params;
1673            CHECK(msg->findMessage("params", &params));
1674
1675            status_t err = onSetParameters(params);
1676
1677            PostReplyWithError(replyID, err);
1678            break;
1679        }
1680
1681        default:
1682            TRESPASS();
1683    }
1684}
1685
1686void MediaCodec::extractCSD(const sp<AMessage> &format) {
1687    mCSD.clear();
1688
1689    size_t i = 0;
1690    for (;;) {
1691        sp<ABuffer> csd;
1692        if (!format->findBuffer(StringPrintf("csd-%u", i).c_str(), &csd)) {
1693            break;
1694        }
1695
1696        mCSD.push_back(csd);
1697        ++i;
1698    }
1699
1700    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1701}
1702
1703status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1704    CHECK(!mCSD.empty());
1705
1706    const BufferInfo *info =
1707        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1708
1709    sp<ABuffer> csd = *mCSD.begin();
1710    mCSD.erase(mCSD.begin());
1711
1712    const sp<ABuffer> &codecInputData =
1713        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1714
1715    if (csd->size() > codecInputData->capacity()) {
1716        return -EINVAL;
1717    }
1718
1719    memcpy(codecInputData->data(), csd->data(), csd->size());
1720
1721    AString errorDetailMsg;
1722
1723    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1724    msg->setSize("index", bufferIndex);
1725    msg->setSize("offset", 0);
1726    msg->setSize("size", csd->size());
1727    msg->setInt64("timeUs", 0ll);
1728    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1729    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1730
1731    return onQueueInputBuffer(msg);
1732}
1733
1734void MediaCodec::setState(State newState) {
1735    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1736        delete mSoftRenderer;
1737        mSoftRenderer = NULL;
1738
1739        mCrypto.clear();
1740        setNativeWindow(NULL);
1741
1742        mInputFormat.clear();
1743        mOutputFormat.clear();
1744        mFlags &= ~kFlagOutputFormatChanged;
1745        mFlags &= ~kFlagOutputBuffersChanged;
1746        mFlags &= ~kFlagStickyError;
1747        mFlags &= ~kFlagIsEncoder;
1748        mFlags &= ~kFlagGatherCodecSpecificData;
1749        mFlags &= ~kFlagIsAsync;
1750        mStickyError = OK;
1751
1752        mActivityNotify.clear();
1753        mCallback.clear();
1754    }
1755
1756    if (newState == UNINITIALIZED) {
1757        // return any straggling buffers, e.g. if we got here on an error
1758        returnBuffersToCodec();
1759
1760        // The component is gone, mediaserver's probably back up already
1761        // but should definitely be back up should we try to instantiate
1762        // another component.. and the cycle continues.
1763        mFlags &= ~kFlagSawMediaServerDie;
1764    }
1765
1766    mState = newState;
1767
1768    cancelPendingDequeueOperations();
1769
1770    updateBatteryStat();
1771}
1772
1773void MediaCodec::returnBuffersToCodec() {
1774    returnBuffersToCodecOnPort(kPortIndexInput);
1775    returnBuffersToCodecOnPort(kPortIndexOutput);
1776}
1777
1778void MediaCodec::returnBuffersToCodecOnPort(int32_t portIndex) {
1779    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1780    Mutex::Autolock al(mBufferLock);
1781
1782    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1783
1784    for (size_t i = 0; i < buffers->size(); ++i) {
1785        BufferInfo *info = &buffers->editItemAt(i);
1786
1787        if (info->mNotify != NULL) {
1788            sp<AMessage> msg = info->mNotify;
1789            info->mNotify = NULL;
1790            info->mOwnedByClient = false;
1791
1792            if (portIndex == kPortIndexInput) {
1793                /* no error, just returning buffers */
1794                msg->setInt32("err", OK);
1795            }
1796            msg->post();
1797        }
1798    }
1799
1800    mAvailPortBuffers[portIndex].clear();
1801}
1802
1803size_t MediaCodec::updateBuffers(
1804        int32_t portIndex, const sp<AMessage> &msg) {
1805    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1806
1807    uint32_t bufferID;
1808    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
1809
1810    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1811
1812    for (size_t i = 0; i < buffers->size(); ++i) {
1813        BufferInfo *info = &buffers->editItemAt(i);
1814
1815        if (info->mBufferID == bufferID) {
1816            CHECK(info->mNotify == NULL);
1817            CHECK(msg->findMessage("reply", &info->mNotify));
1818
1819            info->mFormat =
1820                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
1821            mAvailPortBuffers[portIndex].push_back(i);
1822
1823            return i;
1824        }
1825    }
1826
1827    TRESPASS();
1828
1829    return 0;
1830}
1831
1832status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
1833    size_t index;
1834    size_t offset;
1835    size_t size;
1836    int64_t timeUs;
1837    uint32_t flags;
1838    CHECK(msg->findSize("index", &index));
1839    CHECK(msg->findSize("offset", &offset));
1840    CHECK(msg->findInt64("timeUs", &timeUs));
1841    CHECK(msg->findInt32("flags", (int32_t *)&flags));
1842
1843    const CryptoPlugin::SubSample *subSamples;
1844    size_t numSubSamples;
1845    const uint8_t *key;
1846    const uint8_t *iv;
1847    CryptoPlugin::Mode mode = CryptoPlugin::kMode_Unencrypted;
1848
1849    // We allow the simpler queueInputBuffer API to be used even in
1850    // secure mode, by fabricating a single unencrypted subSample.
1851    CryptoPlugin::SubSample ss;
1852
1853    if (msg->findSize("size", &size)) {
1854        if (mCrypto != NULL) {
1855            ss.mNumBytesOfClearData = size;
1856            ss.mNumBytesOfEncryptedData = 0;
1857
1858            subSamples = &ss;
1859            numSubSamples = 1;
1860            key = NULL;
1861            iv = NULL;
1862        }
1863    } else {
1864        if (mCrypto == NULL) {
1865            return -EINVAL;
1866        }
1867
1868        CHECK(msg->findPointer("subSamples", (void **)&subSamples));
1869        CHECK(msg->findSize("numSubSamples", &numSubSamples));
1870        CHECK(msg->findPointer("key", (void **)&key));
1871        CHECK(msg->findPointer("iv", (void **)&iv));
1872
1873        int32_t tmp;
1874        CHECK(msg->findInt32("mode", &tmp));
1875
1876        mode = (CryptoPlugin::Mode)tmp;
1877
1878        size = 0;
1879        for (size_t i = 0; i < numSubSamples; ++i) {
1880            size += subSamples[i].mNumBytesOfClearData;
1881            size += subSamples[i].mNumBytesOfEncryptedData;
1882        }
1883    }
1884
1885    if (index >= mPortBuffers[kPortIndexInput].size()) {
1886        return -ERANGE;
1887    }
1888
1889    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
1890
1891    if (info->mNotify == NULL || !info->mOwnedByClient) {
1892        return -EACCES;
1893    }
1894
1895    if (offset + size > info->mData->capacity()) {
1896        return -EINVAL;
1897    }
1898
1899    sp<AMessage> reply = info->mNotify;
1900    info->mData->setRange(offset, size);
1901    info->mData->meta()->setInt64("timeUs", timeUs);
1902
1903    if (flags & BUFFER_FLAG_EOS) {
1904        info->mData->meta()->setInt32("eos", true);
1905    }
1906
1907    if (flags & BUFFER_FLAG_CODECCONFIG) {
1908        info->mData->meta()->setInt32("csd", true);
1909    }
1910
1911    if (mCrypto != NULL) {
1912        if (size > info->mEncryptedData->capacity()) {
1913            return -ERANGE;
1914        }
1915
1916        AString *errorDetailMsg;
1917        CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
1918
1919        ssize_t result = mCrypto->decrypt(
1920                (mFlags & kFlagIsSecure) != 0,
1921                key,
1922                iv,
1923                mode,
1924                info->mEncryptedData->base() + offset,
1925                subSamples,
1926                numSubSamples,
1927                info->mData->base(),
1928                errorDetailMsg);
1929
1930        if (result < 0) {
1931            return result;
1932        }
1933
1934        info->mData->setRange(0, result);
1935    }
1936
1937    // synchronization boundary for getBufferAndFormat
1938    {
1939        Mutex::Autolock al(mBufferLock);
1940        info->mOwnedByClient = false;
1941    }
1942    reply->setBuffer("buffer", info->mData);
1943    reply->post();
1944
1945    info->mNotify = NULL;
1946
1947    return OK;
1948}
1949
1950status_t MediaCodec::onReleaseOutputBuffer(const sp<AMessage> &msg) {
1951    size_t index;
1952    CHECK(msg->findSize("index", &index));
1953
1954    int32_t render;
1955    if (!msg->findInt32("render", &render)) {
1956        render = 0;
1957    }
1958
1959    if (!isExecuting()) {
1960        return -EINVAL;
1961    }
1962
1963    if (index >= mPortBuffers[kPortIndexOutput].size()) {
1964        return -ERANGE;
1965    }
1966
1967    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
1968
1969    if (info->mNotify == NULL || !info->mOwnedByClient) {
1970        return -EACCES;
1971    }
1972
1973    // synchronization boundary for getBufferAndFormat
1974    {
1975        Mutex::Autolock al(mBufferLock);
1976        info->mOwnedByClient = false;
1977    }
1978
1979    if (render && info->mData != NULL && info->mData->size() != 0) {
1980        info->mNotify->setInt32("render", true);
1981
1982        int64_t timestampNs = 0;
1983        if (msg->findInt64("timestampNs", &timestampNs)) {
1984            info->mNotify->setInt64("timestampNs", timestampNs);
1985        } else {
1986            // TODO: it seems like we should use the timestamp
1987            // in the (media)buffer as it potentially came from
1988            // an input surface, but we did not propagate it prior to
1989            // API 20.  Perhaps check for target SDK version.
1990#if 0
1991            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
1992                ALOGV("using buffer PTS of %" PRId64, timestampNs);
1993                timestampNs *= 1000;
1994            }
1995#endif
1996        }
1997
1998        if (mSoftRenderer != NULL) {
1999            mSoftRenderer->render(
2000                    info->mData->data(), info->mData->size(),
2001                    timestampNs, NULL, info->mFormat);
2002        }
2003    }
2004
2005    info->mNotify->post();
2006    info->mNotify = NULL;
2007
2008    return OK;
2009}
2010
2011ssize_t MediaCodec::dequeuePortBuffer(int32_t portIndex) {
2012    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
2013
2014    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
2015
2016    if (availBuffers->empty()) {
2017        return -EAGAIN;
2018    }
2019
2020    size_t index = *availBuffers->begin();
2021    availBuffers->erase(availBuffers->begin());
2022
2023    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
2024    CHECK(!info->mOwnedByClient);
2025    {
2026        Mutex::Autolock al(mBufferLock);
2027        info->mOwnedByClient = true;
2028
2029        // set image-data
2030        if (info->mFormat != NULL) {
2031            sp<ABuffer> imageData;
2032            if (info->mFormat->findBuffer("image-data", &imageData)) {
2033                info->mData->meta()->setBuffer("image-data", imageData);
2034            }
2035            int32_t left, top, right, bottom;
2036            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
2037                info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
2038            }
2039        }
2040    }
2041
2042    return index;
2043}
2044
2045status_t MediaCodec::setNativeWindow(
2046        const sp<Surface> &surfaceTextureClient) {
2047    status_t err;
2048
2049    if (mNativeWindow != NULL) {
2050        err = native_window_api_disconnect(
2051                mNativeWindow.get(), NATIVE_WINDOW_API_MEDIA);
2052
2053        if (err != OK) {
2054            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
2055                    strerror(-err), err);
2056        }
2057
2058        mNativeWindow.clear();
2059    }
2060
2061    if (surfaceTextureClient != NULL) {
2062        err = native_window_api_connect(
2063                surfaceTextureClient.get(), NATIVE_WINDOW_API_MEDIA);
2064
2065        if (err != OK) {
2066            ALOGE("native_window_api_connect returned an error: %s (%d)",
2067                    strerror(-err), err);
2068
2069            return err;
2070        }
2071
2072        mNativeWindow = surfaceTextureClient;
2073    }
2074
2075    return OK;
2076}
2077
2078void MediaCodec::onInputBufferAvailable() {
2079    int32_t index;
2080    while ((index = dequeuePortBuffer(kPortIndexInput)) >= 0) {
2081        sp<AMessage> msg = mCallback->dup();
2082        msg->setInt32("callbackID", CB_INPUT_AVAILABLE);
2083        msg->setInt32("index", index);
2084        msg->post();
2085    }
2086}
2087
2088void MediaCodec::onOutputBufferAvailable() {
2089    int32_t index;
2090    while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
2091        const sp<ABuffer> &buffer =
2092            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
2093        sp<AMessage> msg = mCallback->dup();
2094        msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
2095        msg->setInt32("index", index);
2096        msg->setSize("offset", buffer->offset());
2097        msg->setSize("size", buffer->size());
2098
2099        int64_t timeUs;
2100        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2101
2102        msg->setInt64("timeUs", timeUs);
2103
2104        int32_t omxFlags;
2105        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
2106
2107        uint32_t flags = 0;
2108        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
2109            flags |= BUFFER_FLAG_SYNCFRAME;
2110        }
2111        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
2112            flags |= BUFFER_FLAG_CODECCONFIG;
2113        }
2114        if (omxFlags & OMX_BUFFERFLAG_EOS) {
2115            flags |= BUFFER_FLAG_EOS;
2116        }
2117
2118        msg->setInt32("flags", flags);
2119
2120        msg->post();
2121    }
2122}
2123
2124void MediaCodec::onError(status_t err, int32_t actionCode, const char *detail) {
2125    if (mCallback != NULL) {
2126        sp<AMessage> msg = mCallback->dup();
2127        msg->setInt32("callbackID", CB_ERROR);
2128        msg->setInt32("err", err);
2129        msg->setInt32("actionCode", actionCode);
2130
2131        if (detail != NULL) {
2132            msg->setString("detail", detail);
2133        }
2134
2135        msg->post();
2136    }
2137}
2138
2139void MediaCodec::onOutputFormatChanged() {
2140    if (mCallback != NULL) {
2141        sp<AMessage> msg = mCallback->dup();
2142        msg->setInt32("callbackID", CB_OUTPUT_FORMAT_CHANGED);
2143        msg->setMessage("format", mOutputFormat);
2144        msg->post();
2145    }
2146}
2147
2148
2149void MediaCodec::postActivityNotificationIfPossible() {
2150    if (mActivityNotify == NULL) {
2151        return;
2152    }
2153
2154    bool isErrorOrOutputChanged =
2155            (mFlags & (kFlagStickyError
2156                    | kFlagOutputBuffersChanged
2157                    | kFlagOutputFormatChanged));
2158
2159    if (isErrorOrOutputChanged
2160            || !mAvailPortBuffers[kPortIndexInput].empty()
2161            || !mAvailPortBuffers[kPortIndexOutput].empty()) {
2162        mActivityNotify->setInt32("input-buffers",
2163                mAvailPortBuffers[kPortIndexInput].size());
2164
2165        if (isErrorOrOutputChanged) {
2166            // we want consumer to dequeue as many times as it can
2167            mActivityNotify->setInt32("output-buffers", INT32_MAX);
2168        } else {
2169            mActivityNotify->setInt32("output-buffers",
2170                    mAvailPortBuffers[kPortIndexOutput].size());
2171        }
2172        mActivityNotify->post();
2173        mActivityNotify.clear();
2174    }
2175}
2176
2177status_t MediaCodec::setParameters(const sp<AMessage> &params) {
2178    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
2179    msg->setMessage("params", params);
2180
2181    sp<AMessage> response;
2182    return PostAndAwaitResponse(msg, &response);
2183}
2184
2185status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
2186    mCodec->signalSetParameters(params);
2187
2188    return OK;
2189}
2190
2191status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
2192        const sp<ABuffer> &buffer) {
2193    AString mime;
2194    CHECK(mOutputFormat->findString("mime", &mime));
2195
2196    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_VIDEO_AVC)) {
2197        // Codec specific data should be SPS and PPS in a single buffer,
2198        // each prefixed by a startcode (0x00 0x00 0x00 0x01).
2199        // We separate the two and put them into the output format
2200        // under the keys "csd-0" and "csd-1".
2201
2202        unsigned csdIndex = 0;
2203
2204        const uint8_t *data = buffer->data();
2205        size_t size = buffer->size();
2206
2207        const uint8_t *nalStart;
2208        size_t nalSize;
2209        while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
2210            sp<ABuffer> csd = new ABuffer(nalSize + 4);
2211            memcpy(csd->data(), "\x00\x00\x00\x01", 4);
2212            memcpy(csd->data() + 4, nalStart, nalSize);
2213
2214            mOutputFormat->setBuffer(
2215                    StringPrintf("csd-%u", csdIndex).c_str(), csd);
2216
2217            ++csdIndex;
2218        }
2219
2220        if (csdIndex != 2) {
2221            return ERROR_MALFORMED;
2222        }
2223    } else {
2224        // For everything else we just stash the codec specific data into
2225        // the output format as a single piece of csd under "csd-0".
2226        mOutputFormat->setBuffer("csd-0", buffer);
2227    }
2228
2229    return OK;
2230}
2231
2232void MediaCodec::updateBatteryStat() {
2233    if (mState == CONFIGURED && !mBatteryStatNotified) {
2234        AString mime;
2235        CHECK(mOutputFormat != NULL &&
2236                mOutputFormat->findString("mime", &mime));
2237
2238        mIsVideo = mime.startsWithIgnoreCase("video/");
2239
2240        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2241
2242        if (mIsVideo) {
2243            notifier.noteStartVideo();
2244        } else {
2245            notifier.noteStartAudio();
2246        }
2247
2248        mBatteryStatNotified = true;
2249    } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
2250        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2251
2252        if (mIsVideo) {
2253            notifier.noteStopVideo();
2254        } else {
2255            notifier.noteStopAudio();
2256        }
2257
2258        mBatteryStatNotified = false;
2259    }
2260}
2261
2262}  // namespace android
2263