MediaCodec.cpp revision 36a7f5b2971f9125e908388113d5e52ddcb8822c 
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/MediaFilter.h>
40#include <media/stagefright/MetaData.h>
41#include <media/stagefright/NativeWindowWrapper.h>
42#include <private/android_filesystem_config.h>
43#include <utils/Log.h>
44#include <utils/Singleton.h>
45
46namespace android {
47
48struct MediaCodec::BatteryNotifier : public Singleton<BatteryNotifier> {
49    BatteryNotifier();
50
51    void noteStartVideo();
52    void noteStopVideo();
53    void noteStartAudio();
54    void noteStopAudio();
55
56private:
57    int32_t mVideoRefCount;
58    int32_t mAudioRefCount;
59    sp<IBatteryStats> mBatteryStatService;
60};
61
62ANDROID_SINGLETON_STATIC_INSTANCE(MediaCodec::BatteryNotifier)
63
64MediaCodec::BatteryNotifier::BatteryNotifier() :
65    mVideoRefCount(0),
66    mAudioRefCount(0) {
67    // get battery service
68    const sp<IServiceManager> sm(defaultServiceManager());
69    if (sm != NULL) {
70        const String16 name("batterystats");
71        mBatteryStatService = interface_cast<IBatteryStats>(sm->getService(name));
72        if (mBatteryStatService == NULL) {
73            ALOGE("batterystats service unavailable!");
74        }
75    }
76}
77
78void MediaCodec::BatteryNotifier::noteStartVideo() {
79    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
80        mBatteryStatService->noteStartVideo(AID_MEDIA);
81    }
82    mVideoRefCount++;
83}
84
85void MediaCodec::BatteryNotifier::noteStopVideo() {
86    if (mVideoRefCount == 0) {
87        ALOGW("BatteryNotifier::noteStop(): video refcount is broken!");
88        return;
89    }
90
91    mVideoRefCount--;
92    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
93        mBatteryStatService->noteStopVideo(AID_MEDIA);
94    }
95}
96
97void MediaCodec::BatteryNotifier::noteStartAudio() {
98    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
99        mBatteryStatService->noteStartAudio(AID_MEDIA);
100    }
101    mAudioRefCount++;
102}
103
104void MediaCodec::BatteryNotifier::noteStopAudio() {
105    if (mAudioRefCount == 0) {
106        ALOGW("BatteryNotifier::noteStop(): audio refcount is broken!");
107        return;
108    }
109
110    mAudioRefCount--;
111    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
112        mBatteryStatService->noteStopAudio(AID_MEDIA);
113    }
114}
115// static
116sp<MediaCodec> MediaCodec::CreateByType(
117        const sp<ALooper> &looper, const char *mime, bool encoder, status_t *err) {
118    sp<MediaCodec> codec = new MediaCodec(looper);
119
120    const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
121    if (err != NULL) {
122        *err = ret;
123    }
124    return ret == OK ? codec : NULL; // NULL deallocates codec.
125}
126
127// static
128sp<MediaCodec> MediaCodec::CreateByComponentName(
129        const sp<ALooper> &looper, const char *name, status_t *err) {
130    sp<MediaCodec> codec = new MediaCodec(looper);
131
132    const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
133    if (err != NULL) {
134        *err = ret;
135    }
136    return ret == OK ? codec : NULL; // NULL deallocates codec.
137}
138
139MediaCodec::MediaCodec(const sp<ALooper> &looper)
140    : mState(UNINITIALIZED),
141      mLooper(looper),
142      mCodec(NULL),
143      mReplyID(0),
144      mFlags(0),
145      mStickyError(OK),
146      mSoftRenderer(NULL),
147      mBatteryStatNotified(false),
148      mIsVideo(false),
149      mDequeueInputTimeoutGeneration(0),
150      mDequeueInputReplyID(0),
151      mDequeueOutputTimeoutGeneration(0),
152      mDequeueOutputReplyID(0),
153      mHaveInputSurface(false) {
154}
155
156MediaCodec::~MediaCodec() {
157    CHECK_EQ(mState, UNINITIALIZED);
158}
159
160// static
161status_t MediaCodec::PostAndAwaitResponse(
162        const sp<AMessage> &msg, sp<AMessage> *response) {
163    status_t err = msg->postAndAwaitResponse(response);
164
165    if (err != OK) {
166        return err;
167    }
168
169    if (!(*response)->findInt32("err", &err)) {
170        err = OK;
171    }
172
173    return err;
174}
175
176// static
177void MediaCodec::PostReplyWithError(int32_t replyID, int32_t err) {
178    sp<AMessage> response = new AMessage;
179    response->setInt32("err", err);
180    response->postReply(replyID);
181}
182
183status_t MediaCodec::init(const AString &name, bool nameIsType, bool encoder) {
184    // save init parameters for reset
185    mInitName = name;
186    mInitNameIsType = nameIsType;
187    mInitIsEncoder = encoder;
188
189    // Current video decoders do not return from OMX_FillThisBuffer
190    // quickly, violating the OpenMAX specs, until that is remedied
191    // we need to invest in an extra looper to free the main event
192    // queue.
193
194    if (nameIsType || !strncasecmp(name.c_str(), "omx.", 4)) {
195        mCodec = new ACodec;
196    } else if (!nameIsType
197            && !strncasecmp(name.c_str(), "android.filter.", 15)) {
198        mCodec = new MediaFilter;
199    } else {
200        return NAME_NOT_FOUND;
201    }
202
203    bool needDedicatedLooper = false;
204    if (nameIsType && !strncasecmp(name.c_str(), "video/", 6)) {
205        needDedicatedLooper = true;
206    } else {
207        AString tmp = name;
208        if (tmp.endsWith(".secure")) {
209            tmp.erase(tmp.size() - 7, 7);
210        }
211        const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
212        ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
213        if (codecIdx >= 0) {
214            const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
215            Vector<AString> mimes;
216            info->getSupportedMimes(&mimes);
217            for (size_t i = 0; i < mimes.size(); i++) {
218                if (mimes[i].startsWith("video/")) {
219                    needDedicatedLooper = true;
220                    break;
221                }
222            }
223        }
224    }
225
226    if (needDedicatedLooper) {
227        if (mCodecLooper == NULL) {
228            mCodecLooper = new ALooper;
229            mCodecLooper->setName("CodecLooper");
230            mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
231        }
232
233        mCodecLooper->registerHandler(mCodec);
234    } else {
235        mLooper->registerHandler(mCodec);
236    }
237
238    mLooper->registerHandler(this);
239
240    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, id()));
241
242    sp<AMessage> msg = new AMessage(kWhatInit, id());
243    msg->setString("name", name);
244    msg->setInt32("nameIsType", nameIsType);
245
246    if (nameIsType) {
247        msg->setInt32("encoder", encoder);
248    }
249
250    sp<AMessage> response;
251    return PostAndAwaitResponse(msg, &response);
252}
253
254status_t MediaCodec::setCallback(const sp<AMessage> &callback) {
255    sp<AMessage> msg = new AMessage(kWhatSetCallback, id());
256    msg->setMessage("callback", callback);
257
258    sp<AMessage> response;
259    return PostAndAwaitResponse(msg, &response);
260}
261
262status_t MediaCodec::configure(
263        const sp<AMessage> &format,
264        const sp<Surface> &nativeWindow,
265        const sp<ICrypto> &crypto,
266        uint32_t flags) {
267    sp<AMessage> msg = new AMessage(kWhatConfigure, id());
268
269    msg->setMessage("format", format);
270    msg->setInt32("flags", flags);
271
272    if (nativeWindow != NULL) {
273        msg->setObject(
274                "native-window",
275                new NativeWindowWrapper(nativeWindow));
276    }
277
278    if (crypto != NULL) {
279        msg->setPointer("crypto", crypto.get());
280    }
281
282    sp<AMessage> response;
283    status_t err = PostAndAwaitResponse(msg, &response);
284
285    if (err != OK && err != INVALID_OPERATION) {
286        // MediaCodec now set state to UNINITIALIZED upon any fatal error.
287        // To maintain backward-compatibility, do a reset() to put codec
288        // back into INITIALIZED state.
289        // But don't reset if the err is INVALID_OPERATION, which means
290        // the configure failure is due to wrong state.
291
292        ALOGE("configure failed with err 0x%08x, resetting...", err);
293        reset();
294    }
295
296    return err;
297}
298
299status_t MediaCodec::createInputSurface(
300        sp<IGraphicBufferProducer>* bufferProducer) {
301    sp<AMessage> msg = new AMessage(kWhatCreateInputSurface, id());
302
303    sp<AMessage> response;
304    status_t err = PostAndAwaitResponse(msg, &response);
305    if (err == NO_ERROR) {
306        // unwrap the sp<IGraphicBufferProducer>
307        sp<RefBase> obj;
308        bool found = response->findObject("input-surface", &obj);
309        CHECK(found);
310        sp<BufferProducerWrapper> wrapper(
311                static_cast<BufferProducerWrapper*>(obj.get()));
312        *bufferProducer = wrapper->getBufferProducer();
313    } else {
314        ALOGW("createInputSurface failed, err=%d", err);
315    }
316    return err;
317}
318
319status_t MediaCodec::start() {
320    sp<AMessage> msg = new AMessage(kWhatStart, id());
321
322    sp<AMessage> response;
323    return PostAndAwaitResponse(msg, &response);
324}
325
326status_t MediaCodec::stop() {
327    sp<AMessage> msg = new AMessage(kWhatStop, id());
328
329    sp<AMessage> response;
330    return PostAndAwaitResponse(msg, &response);
331}
332
333status_t MediaCodec::release() {
334    sp<AMessage> msg = new AMessage(kWhatRelease, id());
335
336    sp<AMessage> response;
337    return PostAndAwaitResponse(msg, &response);
338}
339
340status_t MediaCodec::reset() {
341    /* When external-facing MediaCodec object is created,
342       it is already initialized.  Thus, reset is essentially
343       release() followed by init(), plus clearing the state */
344
345    status_t err = release();
346
347    // unregister handlers
348    if (mCodec != NULL) {
349        if (mCodecLooper != NULL) {
350            mCodecLooper->unregisterHandler(mCodec->id());
351        } else {
352            mLooper->unregisterHandler(mCodec->id());
353        }
354        mCodec = NULL;
355    }
356    mLooper->unregisterHandler(id());
357
358    mFlags = 0;    // clear all flags
359    mStickyError = OK;
360
361    // reset state not reset by setState(UNINITIALIZED)
362    mReplyID = 0;
363    mDequeueInputReplyID = 0;
364    mDequeueOutputReplyID = 0;
365    mDequeueInputTimeoutGeneration = 0;
366    mDequeueOutputTimeoutGeneration = 0;
367    mHaveInputSurface = false;
368
369    if (err == OK) {
370        err = init(mInitName, mInitNameIsType, mInitIsEncoder);
371    }
372    return err;
373}
374
375status_t MediaCodec::queueInputBuffer(
376        size_t index,
377        size_t offset,
378        size_t size,
379        int64_t presentationTimeUs,
380        uint32_t flags,
381        AString *errorDetailMsg) {
382    if (errorDetailMsg != NULL) {
383        errorDetailMsg->clear();
384    }
385
386    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
387    msg->setSize("index", index);
388    msg->setSize("offset", offset);
389    msg->setSize("size", size);
390    msg->setInt64("timeUs", presentationTimeUs);
391    msg->setInt32("flags", flags);
392    msg->setPointer("errorDetailMsg", errorDetailMsg);
393
394    sp<AMessage> response;
395    return PostAndAwaitResponse(msg, &response);
396}
397
398status_t MediaCodec::queueSecureInputBuffer(
399        size_t index,
400        size_t offset,
401        const CryptoPlugin::SubSample *subSamples,
402        size_t numSubSamples,
403        const uint8_t key[16],
404        const uint8_t iv[16],
405        CryptoPlugin::Mode mode,
406        int64_t presentationTimeUs,
407        uint32_t flags,
408        AString *errorDetailMsg) {
409    if (errorDetailMsg != NULL) {
410        errorDetailMsg->clear();
411    }
412
413    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
414    msg->setSize("index", index);
415    msg->setSize("offset", offset);
416    msg->setPointer("subSamples", (void *)subSamples);
417    msg->setSize("numSubSamples", numSubSamples);
418    msg->setPointer("key", (void *)key);
419    msg->setPointer("iv", (void *)iv);
420    msg->setInt32("mode", mode);
421    msg->setInt64("timeUs", presentationTimeUs);
422    msg->setInt32("flags", flags);
423    msg->setPointer("errorDetailMsg", errorDetailMsg);
424
425    sp<AMessage> response;
426    status_t err = PostAndAwaitResponse(msg, &response);
427
428    return err;
429}
430
431status_t MediaCodec::dequeueInputBuffer(size_t *index, int64_t timeoutUs) {
432    sp<AMessage> msg = new AMessage(kWhatDequeueInputBuffer, id());
433    msg->setInt64("timeoutUs", timeoutUs);
434
435    sp<AMessage> response;
436    status_t err;
437    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
438        return err;
439    }
440
441    CHECK(response->findSize("index", index));
442
443    return OK;
444}
445
446status_t MediaCodec::dequeueOutputBuffer(
447        size_t *index,
448        size_t *offset,
449        size_t *size,
450        int64_t *presentationTimeUs,
451        uint32_t *flags,
452        int64_t timeoutUs) {
453    sp<AMessage> msg = new AMessage(kWhatDequeueOutputBuffer, id());
454    msg->setInt64("timeoutUs", timeoutUs);
455
456    sp<AMessage> response;
457    status_t err;
458    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
459        return err;
460    }
461
462    CHECK(response->findSize("index", index));
463    CHECK(response->findSize("offset", offset));
464    CHECK(response->findSize("size", size));
465    CHECK(response->findInt64("timeUs", presentationTimeUs));
466    CHECK(response->findInt32("flags", (int32_t *)flags));
467
468    return OK;
469}
470
471status_t MediaCodec::renderOutputBufferAndRelease(size_t index) {
472    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
473    msg->setSize("index", index);
474    msg->setInt32("render", true);
475
476    sp<AMessage> response;
477    return PostAndAwaitResponse(msg, &response);
478}
479
480status_t MediaCodec::renderOutputBufferAndRelease(size_t index, int64_t timestampNs) {
481    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
482    msg->setSize("index", index);
483    msg->setInt32("render", true);
484    msg->setInt64("timestampNs", timestampNs);
485
486    sp<AMessage> response;
487    return PostAndAwaitResponse(msg, &response);
488}
489
490status_t MediaCodec::releaseOutputBuffer(size_t index) {
491    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
492    msg->setSize("index", index);
493
494    sp<AMessage> response;
495    return PostAndAwaitResponse(msg, &response);
496}
497
498status_t MediaCodec::signalEndOfInputStream() {
499    sp<AMessage> msg = new AMessage(kWhatSignalEndOfInputStream, id());
500
501    sp<AMessage> response;
502    return PostAndAwaitResponse(msg, &response);
503}
504
505status_t MediaCodec::getOutputFormat(sp<AMessage> *format) const {
506    sp<AMessage> msg = new AMessage(kWhatGetOutputFormat, id());
507
508    sp<AMessage> response;
509    status_t err;
510    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
511        return err;
512    }
513
514    CHECK(response->findMessage("format", format));
515
516    return OK;
517}
518
519status_t MediaCodec::getInputFormat(sp<AMessage> *format) const {
520    sp<AMessage> msg = new AMessage(kWhatGetInputFormat, id());
521
522    sp<AMessage> response;
523    status_t err;
524    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
525        return err;
526    }
527
528    CHECK(response->findMessage("format", format));
529
530    return OK;
531}
532
533status_t MediaCodec::getName(AString *name) const {
534    sp<AMessage> msg = new AMessage(kWhatGetName, id());
535
536    sp<AMessage> response;
537    status_t err;
538    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
539        return err;
540    }
541
542    CHECK(response->findString("name", name));
543
544    return OK;
545}
546
547status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
548    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
549    msg->setInt32("portIndex", kPortIndexInput);
550    msg->setPointer("buffers", buffers);
551
552    sp<AMessage> response;
553    return PostAndAwaitResponse(msg, &response);
554}
555
556status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
557    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
558    msg->setInt32("portIndex", kPortIndexOutput);
559    msg->setPointer("buffers", buffers);
560
561    sp<AMessage> response;
562    return PostAndAwaitResponse(msg, &response);
563}
564
565status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
566    sp<AMessage> format;
567    return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
568}
569
570status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
571    sp<ABuffer> buffer;
572    return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
573}
574
575status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
576    sp<AMessage> format;
577    return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
578}
579
580bool MediaCodec::isExecuting() const {
581    return mState == STARTED || mState == FLUSHED;
582}
583
584status_t MediaCodec::getBufferAndFormat(
585        size_t portIndex, size_t index,
586        sp<ABuffer> *buffer, sp<AMessage> *format) {
587    // use mutex instead of a context switch
588
589    buffer->clear();
590    format->clear();
591    if (!isExecuting()) {
592        return INVALID_OPERATION;
593    }
594
595    // we do not want mPortBuffers to change during this section
596    // we also don't want mOwnedByClient to change during this
597    Mutex::Autolock al(mBufferLock);
598    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
599    if (index < buffers->size()) {
600        const BufferInfo &info = buffers->itemAt(index);
601        if (info.mOwnedByClient) {
602            // by the time buffers array is initialized, crypto is set
603            if (portIndex == kPortIndexInput && mCrypto != NULL) {
604                *buffer = info.mEncryptedData;
605            } else {
606                *buffer = info.mData;
607            }
608            *format = info.mFormat;
609        }
610    }
611    return OK;
612}
613
614status_t MediaCodec::flush() {
615    sp<AMessage> msg = new AMessage(kWhatFlush, id());
616
617    sp<AMessage> response;
618    return PostAndAwaitResponse(msg, &response);
619}
620
621status_t MediaCodec::requestIDRFrame() {
622    (new AMessage(kWhatRequestIDRFrame, id()))->post();
623
624    return OK;
625}
626
627void MediaCodec::requestActivityNotification(const sp<AMessage> &notify) {
628    sp<AMessage> msg = new AMessage(kWhatRequestActivityNotification, id());
629    msg->setMessage("notify", notify);
630    msg->post();
631}
632
633////////////////////////////////////////////////////////////////////////////////
634
635void MediaCodec::cancelPendingDequeueOperations() {
636    if (mFlags & kFlagDequeueInputPending) {
637        PostReplyWithError(mDequeueInputReplyID, INVALID_OPERATION);
638
639        ++mDequeueInputTimeoutGeneration;
640        mDequeueInputReplyID = 0;
641        mFlags &= ~kFlagDequeueInputPending;
642    }
643
644    if (mFlags & kFlagDequeueOutputPending) {
645        PostReplyWithError(mDequeueOutputReplyID, INVALID_OPERATION);
646
647        ++mDequeueOutputTimeoutGeneration;
648        mDequeueOutputReplyID = 0;
649        mFlags &= ~kFlagDequeueOutputPending;
650    }
651}
652
653bool MediaCodec::handleDequeueInputBuffer(uint32_t replyID, bool newRequest) {
654    if (!isExecuting() || (mFlags & kFlagIsAsync)
655            || (newRequest && (mFlags & kFlagDequeueInputPending))) {
656        PostReplyWithError(replyID, INVALID_OPERATION);
657        return true;
658    } else if (mFlags & kFlagStickyError) {
659        PostReplyWithError(replyID, getStickyError());
660        return true;
661    }
662
663    ssize_t index = dequeuePortBuffer(kPortIndexInput);
664
665    if (index < 0) {
666        CHECK_EQ(index, -EAGAIN);
667        return false;
668    }
669
670    sp<AMessage> response = new AMessage;
671    response->setSize("index", index);
672    response->postReply(replyID);
673
674    return true;
675}
676
677bool MediaCodec::handleDequeueOutputBuffer(uint32_t replyID, bool newRequest) {
678    sp<AMessage> response = new AMessage;
679
680    if (!isExecuting() || (mFlags & kFlagIsAsync)
681            || (newRequest && (mFlags & kFlagDequeueOutputPending))) {
682        response->setInt32("err", INVALID_OPERATION);
683    } else if (mFlags & kFlagStickyError) {
684        response->setInt32("err", getStickyError());
685    } else if (mFlags & kFlagOutputBuffersChanged) {
686        response->setInt32("err", INFO_OUTPUT_BUFFERS_CHANGED);
687        mFlags &= ~kFlagOutputBuffersChanged;
688    } else if (mFlags & kFlagOutputFormatChanged) {
689        response->setInt32("err", INFO_FORMAT_CHANGED);
690        mFlags &= ~kFlagOutputFormatChanged;
691    } else {
692        ssize_t index = dequeuePortBuffer(kPortIndexOutput);
693
694        if (index < 0) {
695            CHECK_EQ(index, -EAGAIN);
696            return false;
697        }
698
699        const sp<ABuffer> &buffer =
700            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
701
702        response->setSize("index", index);
703        response->setSize("offset", buffer->offset());
704        response->setSize("size", buffer->size());
705
706        int64_t timeUs;
707        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
708
709        response->setInt64("timeUs", timeUs);
710
711        int32_t omxFlags;
712        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
713
714        uint32_t flags = 0;
715        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
716            flags |= BUFFER_FLAG_SYNCFRAME;
717        }
718        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
719            flags |= BUFFER_FLAG_CODECCONFIG;
720        }
721        if (omxFlags & OMX_BUFFERFLAG_EOS) {
722            flags |= BUFFER_FLAG_EOS;
723        }
724
725        response->setInt32("flags", flags);
726    }
727
728    response->postReply(replyID);
729
730    return true;
731}
732
733void MediaCodec::onMessageReceived(const sp<AMessage> &msg) {
734    switch (msg->what()) {
735        case kWhatCodecNotify:
736        {
737            int32_t what;
738            CHECK(msg->findInt32("what", &what));
739
740            switch (what) {
741                case CodecBase::kWhatError:
742                {
743                    int32_t err, actionCode;
744                    CHECK(msg->findInt32("err", &err));
745                    CHECK(msg->findInt32("actionCode", &actionCode));
746
747                    ALOGE("Codec reported err %#x, actionCode %d, while in state %d",
748                            err, actionCode, mState);
749                    if (err == DEAD_OBJECT) {
750                        mFlags |= kFlagSawMediaServerDie;
751                    }
752
753                    bool sendErrorResponse = true;
754
755                    switch (mState) {
756                        case INITIALIZING:
757                        {
758                            setState(UNINITIALIZED);
759                            break;
760                        }
761
762                        case CONFIGURING:
763                        {
764                            setState(actionCode == ACTION_CODE_FATAL ?
765                                    UNINITIALIZED : INITIALIZED);
766                            break;
767                        }
768
769                        case STARTING:
770                        {
771                            setState(actionCode == ACTION_CODE_FATAL ?
772                                    UNINITIALIZED : CONFIGURED);
773                            break;
774                        }
775
776                        case STOPPING:
777                        case RELEASING:
778                        {
779                            // Ignore the error, assuming we'll still get
780                            // the shutdown complete notification.
781
782                            sendErrorResponse = false;
783
784                            if (mFlags & kFlagSawMediaServerDie) {
785                                // MediaServer died, there definitely won't
786                                // be a shutdown complete notification after
787                                // all.
788
789                                // note that we're directly going from
790                                // STOPPING->UNINITIALIZED, instead of the
791                                // usual STOPPING->INITIALIZED state.
792                                setState(UNINITIALIZED);
793
794                                (new AMessage)->postReply(mReplyID);
795                            }
796                            break;
797                        }
798
799                        case FLUSHING:
800                        {
801                            if (actionCode == ACTION_CODE_FATAL) {
802                                setState(UNINITIALIZED);
803                            } else {
804                                setState(
805                                        (mFlags & kFlagIsAsync) ? FLUSHED : STARTED);
806                            }
807                            break;
808                        }
809
810                        case FLUSHED:
811                        case STARTED:
812                        {
813                            sendErrorResponse = false;
814
815                            setStickyError(err);
816                            postActivityNotificationIfPossible();
817
818                            cancelPendingDequeueOperations();
819
820                            if (mFlags & kFlagIsAsync) {
821                                onError(err, actionCode);
822                            }
823                            switch (actionCode) {
824                            case ACTION_CODE_TRANSIENT:
825                                break;
826                            case ACTION_CODE_RECOVERABLE:
827                                setState(INITIALIZED);
828                                break;
829                            default:
830                                setState(UNINITIALIZED);
831                                break;
832                            }
833                            break;
834                        }
835
836                        default:
837                        {
838                            sendErrorResponse = false;
839
840                            setStickyError(err);
841                            postActivityNotificationIfPossible();
842
843                            // actionCode in an uninitialized state is always fatal.
844                            if (mState == UNINITIALIZED) {
845                                actionCode = ACTION_CODE_FATAL;
846                            }
847                            if (mFlags & kFlagIsAsync) {
848                                onError(err, actionCode);
849                            }
850                            switch (actionCode) {
851                            case ACTION_CODE_TRANSIENT:
852                                break;
853                            case ACTION_CODE_RECOVERABLE:
854                                setState(INITIALIZED);
855                                break;
856                            default:
857                                setState(UNINITIALIZED);
858                                break;
859                            }
860                            break;
861                        }
862                    }
863
864                    if (sendErrorResponse) {
865                        PostReplyWithError(mReplyID, err);
866                    }
867                    break;
868                }
869
870                case CodecBase::kWhatComponentAllocated:
871                {
872                    CHECK_EQ(mState, INITIALIZING);
873                    setState(INITIALIZED);
874
875                    CHECK(msg->findString("componentName", &mComponentName));
876
877                    if (mComponentName.startsWith("OMX.google.")) {
878                        mFlags |= kFlagIsSoftwareCodec;
879                    } else {
880                        mFlags &= ~kFlagIsSoftwareCodec;
881                    }
882
883                    if (mComponentName.endsWith(".secure")) {
884                        mFlags |= kFlagIsSecure;
885                    } else {
886                        mFlags &= ~kFlagIsSecure;
887                    }
888
889                    (new AMessage)->postReply(mReplyID);
890                    break;
891                }
892
893                case CodecBase::kWhatComponentConfigured:
894                {
895                    CHECK_EQ(mState, CONFIGURING);
896
897                    // reset input surface flag
898                    mHaveInputSurface = false;
899
900                    CHECK(msg->findMessage("input-format", &mInputFormat));
901                    CHECK(msg->findMessage("output-format", &mOutputFormat));
902
903                    setState(CONFIGURED);
904                    (new AMessage)->postReply(mReplyID);
905                    break;
906                }
907
908                case CodecBase::kWhatInputSurfaceCreated:
909                {
910                    // response to initiateCreateInputSurface()
911                    status_t err = NO_ERROR;
912                    sp<AMessage> response = new AMessage();
913                    if (!msg->findInt32("err", &err)) {
914                        sp<RefBase> obj;
915                        msg->findObject("input-surface", &obj);
916                        CHECK(obj != NULL);
917                        response->setObject("input-surface", obj);
918                        mHaveInputSurface = true;
919                    } else {
920                        response->setInt32("err", err);
921                    }
922                    response->postReply(mReplyID);
923                    break;
924                }
925
926                case CodecBase::kWhatSignaledInputEOS:
927                {
928                    // response to signalEndOfInputStream()
929                    sp<AMessage> response = new AMessage();
930                    status_t err;
931                    if (msg->findInt32("err", &err)) {
932                        response->setInt32("err", err);
933                    }
934                    response->postReply(mReplyID);
935                    break;
936                }
937
938
939                case CodecBase::kWhatBuffersAllocated:
940                {
941                    Mutex::Autolock al(mBufferLock);
942                    int32_t portIndex;
943                    CHECK(msg->findInt32("portIndex", &portIndex));
944
945                    ALOGV("%s buffers allocated",
946                          portIndex == kPortIndexInput ? "input" : "output");
947
948                    CHECK(portIndex == kPortIndexInput
949                            || portIndex == kPortIndexOutput);
950
951                    mPortBuffers[portIndex].clear();
952
953                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
954
955                    sp<RefBase> obj;
956                    CHECK(msg->findObject("portDesc", &obj));
957
958                    sp<CodecBase::PortDescription> portDesc =
959                        static_cast<CodecBase::PortDescription *>(obj.get());
960
961                    size_t numBuffers = portDesc->countBuffers();
962
963                    for (size_t i = 0; i < numBuffers; ++i) {
964                        BufferInfo info;
965                        info.mBufferID = portDesc->bufferIDAt(i);
966                        info.mOwnedByClient = false;
967                        info.mData = portDesc->bufferAt(i);
968
969                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
970                            info.mEncryptedData =
971                                new ABuffer(info.mData->capacity());
972                        }
973
974                        buffers->push_back(info);
975                    }
976
977                    if (portIndex == kPortIndexOutput) {
978                        if (mState == STARTING) {
979                            // We're always allocating output buffers after
980                            // allocating input buffers, so this is a good
981                            // indication that now all buffers are allocated.
982                            setState(STARTED);
983                            (new AMessage)->postReply(mReplyID);
984                        } else {
985                            mFlags |= kFlagOutputBuffersChanged;
986                            postActivityNotificationIfPossible();
987                        }
988                    }
989                    break;
990                }
991
992                case CodecBase::kWhatOutputFormatChanged:
993                {
994                    ALOGV("codec output format changed");
995
996                    if (mSoftRenderer == NULL &&
997                            mNativeWindow != NULL &&
998                            (mFlags & kFlagIsSoftwareCodec)) {
999                        AString mime;
1000                        CHECK(msg->findString("mime", &mime));
1001
1002                        if (mime.startsWithIgnoreCase("video/")) {
1003                            mSoftRenderer = new SoftwareRenderer(mNativeWindow);
1004                        }
1005                    }
1006
1007                    mOutputFormat = msg;
1008
1009                    if (mFlags & kFlagIsEncoder) {
1010                        // Before we announce the format change we should
1011                        // collect codec specific data and amend the output
1012                        // format as necessary.
1013                        mFlags |= kFlagGatherCodecSpecificData;
1014                    } else if (mFlags & kFlagIsAsync) {
1015                        onOutputFormatChanged();
1016                    } else {
1017                        mFlags |= kFlagOutputFormatChanged;
1018                        postActivityNotificationIfPossible();
1019                    }
1020                    break;
1021                }
1022
1023                case CodecBase::kWhatFillThisBuffer:
1024                {
1025                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1026
1027                    if (mState == FLUSHING
1028                            || mState == STOPPING
1029                            || mState == RELEASING) {
1030                        returnBuffersToCodecOnPort(kPortIndexInput);
1031                        break;
1032                    }
1033
1034                    if (!mCSD.empty()) {
1035                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1036                        CHECK_GE(index, 0);
1037
1038                        // If codec specific data had been specified as
1039                        // part of the format in the call to configure and
1040                        // if there's more csd left, we submit it here
1041                        // clients only get access to input buffers once
1042                        // this data has been exhausted.
1043
1044                        status_t err = queueCSDInputBuffer(index);
1045
1046                        if (err != OK) {
1047                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1048                                  err);
1049
1050                            setStickyError(err);
1051                            postActivityNotificationIfPossible();
1052
1053                            cancelPendingDequeueOperations();
1054                        }
1055                        break;
1056                    }
1057
1058                    if (mFlags & kFlagIsAsync) {
1059                        onInputBufferAvailable();
1060                    } else if (mFlags & kFlagDequeueInputPending) {
1061                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1062
1063                        ++mDequeueInputTimeoutGeneration;
1064                        mFlags &= ~kFlagDequeueInputPending;
1065                        mDequeueInputReplyID = 0;
1066                    } else {
1067                        postActivityNotificationIfPossible();
1068                    }
1069                    break;
1070                }
1071
1072                case CodecBase::kWhatDrainThisBuffer:
1073                {
1074                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1075
1076                    if (mState == FLUSHING
1077                            || mState == STOPPING
1078                            || mState == RELEASING) {
1079                        returnBuffersToCodecOnPort(kPortIndexOutput);
1080                        break;
1081                    }
1082
1083                    sp<ABuffer> buffer;
1084                    CHECK(msg->findBuffer("buffer", &buffer));
1085
1086                    int32_t omxFlags;
1087                    CHECK(msg->findInt32("flags", &omxFlags));
1088
1089                    buffer->meta()->setInt32("omxFlags", omxFlags);
1090
1091                    if (mFlags & kFlagGatherCodecSpecificData) {
1092                        // This is the very first output buffer after a
1093                        // format change was signalled, it'll either contain
1094                        // the one piece of codec specific data we can expect
1095                        // or there won't be codec specific data.
1096                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1097                            status_t err =
1098                                amendOutputFormatWithCodecSpecificData(buffer);
1099
1100                            if (err != OK) {
1101                                ALOGE("Codec spit out malformed codec "
1102                                      "specific data!");
1103                            }
1104                        }
1105
1106                        mFlags &= ~kFlagGatherCodecSpecificData;
1107                        if (mFlags & kFlagIsAsync) {
1108                            onOutputFormatChanged();
1109                        } else {
1110                            mFlags |= kFlagOutputFormatChanged;
1111                        }
1112                    }
1113
1114                    if (mFlags & kFlagIsAsync) {
1115                        onOutputBufferAvailable();
1116                    } else if (mFlags & kFlagDequeueOutputPending) {
1117                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1118
1119                        ++mDequeueOutputTimeoutGeneration;
1120                        mFlags &= ~kFlagDequeueOutputPending;
1121                        mDequeueOutputReplyID = 0;
1122                    } else {
1123                        postActivityNotificationIfPossible();
1124                    }
1125
1126                    break;
1127                }
1128
1129                case CodecBase::kWhatEOS:
1130                {
1131                    // We already notify the client of this by using the
1132                    // corresponding flag in "onOutputBufferReady".
1133                    break;
1134                }
1135
1136                case CodecBase::kWhatShutdownCompleted:
1137                {
1138                    if (mState == STOPPING) {
1139                        setState(INITIALIZED);
1140                    } else {
1141                        CHECK_EQ(mState, RELEASING);
1142                        setState(UNINITIALIZED);
1143                    }
1144
1145                    (new AMessage)->postReply(mReplyID);
1146                    break;
1147                }
1148
1149                case CodecBase::kWhatFlushCompleted:
1150                {
1151                    if (mState != FLUSHING) {
1152                        ALOGW("received FlushCompleted message in state %d",
1153                                mState);
1154                        break;
1155                    }
1156
1157                    if (mFlags & kFlagIsAsync) {
1158                        setState(FLUSHED);
1159                    } else {
1160                        setState(STARTED);
1161                        mCodec->signalResume();
1162                    }
1163
1164                    (new AMessage)->postReply(mReplyID);
1165                    break;
1166                }
1167
1168                default:
1169                    TRESPASS();
1170            }
1171            break;
1172        }
1173
1174        case kWhatInit:
1175        {
1176            uint32_t replyID;
1177            CHECK(msg->senderAwaitsResponse(&replyID));
1178
1179            if (mState != UNINITIALIZED) {
1180                PostReplyWithError(replyID, INVALID_OPERATION);
1181                break;
1182            }
1183
1184            mReplyID = replyID;
1185            setState(INITIALIZING);
1186
1187            AString name;
1188            CHECK(msg->findString("name", &name));
1189
1190            int32_t nameIsType;
1191            int32_t encoder = false;
1192            CHECK(msg->findInt32("nameIsType", &nameIsType));
1193            if (nameIsType) {
1194                CHECK(msg->findInt32("encoder", &encoder));
1195            }
1196
1197            sp<AMessage> format = new AMessage;
1198
1199            if (nameIsType) {
1200                format->setString("mime", name.c_str());
1201                format->setInt32("encoder", encoder);
1202            } else {
1203                format->setString("componentName", name.c_str());
1204            }
1205
1206            mCodec->initiateAllocateComponent(format);
1207            break;
1208        }
1209
1210        case kWhatSetCallback:
1211        {
1212            uint32_t replyID;
1213            CHECK(msg->senderAwaitsResponse(&replyID));
1214
1215            if (mState == UNINITIALIZED
1216                    || mState == INITIALIZING
1217                    || isExecuting()) {
1218                // callback can't be set after codec is executing,
1219                // or before it's initialized (as the callback
1220                // will be cleared when it goes to INITIALIZED)
1221                PostReplyWithError(replyID, INVALID_OPERATION);
1222                break;
1223            }
1224
1225            sp<AMessage> callback;
1226            CHECK(msg->findMessage("callback", &callback));
1227
1228            mCallback = callback;
1229
1230            if (mCallback != NULL) {
1231                ALOGI("MediaCodec will operate in async mode");
1232                mFlags |= kFlagIsAsync;
1233            } else {
1234                mFlags &= ~kFlagIsAsync;
1235            }
1236
1237            sp<AMessage> response = new AMessage;
1238            response->postReply(replyID);
1239            break;
1240        }
1241
1242        case kWhatConfigure:
1243        {
1244            uint32_t replyID;
1245            CHECK(msg->senderAwaitsResponse(&replyID));
1246
1247            if (mState != INITIALIZED) {
1248                PostReplyWithError(replyID, INVALID_OPERATION);
1249                break;
1250            }
1251
1252            sp<RefBase> obj;
1253            if (!msg->findObject("native-window", &obj)) {
1254                obj.clear();
1255            }
1256
1257            sp<AMessage> format;
1258            CHECK(msg->findMessage("format", &format));
1259
1260            if (obj != NULL) {
1261                format->setObject("native-window", obj);
1262
1263                status_t err = setNativeWindow(
1264                    static_cast<NativeWindowWrapper *>(obj.get())
1265                        ->getSurfaceTextureClient());
1266
1267                if (err != OK) {
1268                    PostReplyWithError(replyID, err);
1269                    break;
1270                }
1271            } else {
1272                setNativeWindow(NULL);
1273            }
1274
1275            mReplyID = replyID;
1276            setState(CONFIGURING);
1277
1278            void *crypto;
1279            if (!msg->findPointer("crypto", &crypto)) {
1280                crypto = NULL;
1281            }
1282
1283            mCrypto = static_cast<ICrypto *>(crypto);
1284
1285            uint32_t flags;
1286            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1287
1288            if (flags & CONFIGURE_FLAG_ENCODE) {
1289                format->setInt32("encoder", true);
1290                mFlags |= kFlagIsEncoder;
1291            }
1292
1293            extractCSD(format);
1294
1295            mCodec->initiateConfigureComponent(format);
1296            break;
1297        }
1298
1299        case kWhatCreateInputSurface:
1300        {
1301            uint32_t replyID;
1302            CHECK(msg->senderAwaitsResponse(&replyID));
1303
1304            // Must be configured, but can't have been started yet.
1305            if (mState != CONFIGURED) {
1306                PostReplyWithError(replyID, INVALID_OPERATION);
1307                break;
1308            }
1309
1310            mReplyID = replyID;
1311            mCodec->initiateCreateInputSurface();
1312            break;
1313        }
1314
1315        case kWhatStart:
1316        {
1317            uint32_t replyID;
1318            CHECK(msg->senderAwaitsResponse(&replyID));
1319
1320            if (mState == FLUSHED) {
1321                mCodec->signalResume();
1322                PostReplyWithError(replyID, OK);
1323            } else if (mState != CONFIGURED) {
1324                PostReplyWithError(replyID, INVALID_OPERATION);
1325                break;
1326            }
1327
1328            mReplyID = replyID;
1329            setState(STARTING);
1330
1331            mCodec->initiateStart();
1332            break;
1333        }
1334
1335        case kWhatStop:
1336        case kWhatRelease:
1337        {
1338            State targetState =
1339                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1340
1341            uint32_t replyID;
1342            CHECK(msg->senderAwaitsResponse(&replyID));
1343
1344            if (mState != INITIALIZED
1345                    && mState != CONFIGURED && !isExecuting()) {
1346                // We may be in "UNINITIALIZED" state already without the
1347                // client being aware of this if media server died while
1348                // we were being stopped. The client would assume that
1349                // after stop() returned, it would be safe to call release()
1350                // and it should be in this case, no harm to allow a release()
1351                // if we're already uninitialized.
1352                // Similarly stopping a stopped MediaCodec should be benign.
1353                sp<AMessage> response = new AMessage;
1354                response->setInt32(
1355                        "err",
1356                        mState == targetState ? OK : INVALID_OPERATION);
1357
1358                response->postReply(replyID);
1359                break;
1360            }
1361
1362            if (mFlags & kFlagSawMediaServerDie) {
1363                // It's dead, Jim. Don't expect initiateShutdown to yield
1364                // any useful results now...
1365                setState(UNINITIALIZED);
1366                (new AMessage)->postReply(replyID);
1367                break;
1368            }
1369
1370            mReplyID = replyID;
1371            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1372
1373            mCodec->initiateShutdown(
1374                    msg->what() == kWhatStop /* keepComponentAllocated */);
1375
1376            returnBuffersToCodec();
1377            break;
1378        }
1379
1380        case kWhatDequeueInputBuffer:
1381        {
1382            uint32_t replyID;
1383            CHECK(msg->senderAwaitsResponse(&replyID));
1384
1385            if (mFlags & kFlagIsAsync) {
1386                ALOGE("dequeueOutputBuffer can't be used in async mode");
1387                PostReplyWithError(replyID, INVALID_OPERATION);
1388                break;
1389            }
1390
1391            if (mHaveInputSurface) {
1392                ALOGE("dequeueInputBuffer can't be used with input surface");
1393                PostReplyWithError(replyID, INVALID_OPERATION);
1394                break;
1395            }
1396
1397            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1398                break;
1399            }
1400
1401            int64_t timeoutUs;
1402            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1403
1404            if (timeoutUs == 0ll) {
1405                PostReplyWithError(replyID, -EAGAIN);
1406                break;
1407            }
1408
1409            mFlags |= kFlagDequeueInputPending;
1410            mDequeueInputReplyID = replyID;
1411
1412            if (timeoutUs > 0ll) {
1413                sp<AMessage> timeoutMsg =
1414                    new AMessage(kWhatDequeueInputTimedOut, id());
1415                timeoutMsg->setInt32(
1416                        "generation", ++mDequeueInputTimeoutGeneration);
1417                timeoutMsg->post(timeoutUs);
1418            }
1419            break;
1420        }
1421
1422        case kWhatDequeueInputTimedOut:
1423        {
1424            int32_t generation;
1425            CHECK(msg->findInt32("generation", &generation));
1426
1427            if (generation != mDequeueInputTimeoutGeneration) {
1428                // Obsolete
1429                break;
1430            }
1431
1432            CHECK(mFlags & kFlagDequeueInputPending);
1433
1434            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1435
1436            mFlags &= ~kFlagDequeueInputPending;
1437            mDequeueInputReplyID = 0;
1438            break;
1439        }
1440
1441        case kWhatQueueInputBuffer:
1442        {
1443            uint32_t replyID;
1444            CHECK(msg->senderAwaitsResponse(&replyID));
1445
1446            if (!isExecuting()) {
1447                PostReplyWithError(replyID, INVALID_OPERATION);
1448                break;
1449            } else if (mFlags & kFlagStickyError) {
1450                PostReplyWithError(replyID, getStickyError());
1451                break;
1452            }
1453
1454            status_t err = onQueueInputBuffer(msg);
1455
1456            PostReplyWithError(replyID, err);
1457            break;
1458        }
1459
1460        case kWhatDequeueOutputBuffer:
1461        {
1462            uint32_t replyID;
1463            CHECK(msg->senderAwaitsResponse(&replyID));
1464
1465            if (mFlags & kFlagIsAsync) {
1466                ALOGE("dequeueOutputBuffer can't be used in async mode");
1467                PostReplyWithError(replyID, INVALID_OPERATION);
1468                break;
1469            }
1470
1471            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1472                break;
1473            }
1474
1475            int64_t timeoutUs;
1476            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1477
1478            if (timeoutUs == 0ll) {
1479                PostReplyWithError(replyID, -EAGAIN);
1480                break;
1481            }
1482
1483            mFlags |= kFlagDequeueOutputPending;
1484            mDequeueOutputReplyID = replyID;
1485
1486            if (timeoutUs > 0ll) {
1487                sp<AMessage> timeoutMsg =
1488                    new AMessage(kWhatDequeueOutputTimedOut, id());
1489                timeoutMsg->setInt32(
1490                        "generation", ++mDequeueOutputTimeoutGeneration);
1491                timeoutMsg->post(timeoutUs);
1492            }
1493            break;
1494        }
1495
1496        case kWhatDequeueOutputTimedOut:
1497        {
1498            int32_t generation;
1499            CHECK(msg->findInt32("generation", &generation));
1500
1501            if (generation != mDequeueOutputTimeoutGeneration) {
1502                // Obsolete
1503                break;
1504            }
1505
1506            CHECK(mFlags & kFlagDequeueOutputPending);
1507
1508            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1509
1510            mFlags &= ~kFlagDequeueOutputPending;
1511            mDequeueOutputReplyID = 0;
1512            break;
1513        }
1514
1515        case kWhatReleaseOutputBuffer:
1516        {
1517            uint32_t replyID;
1518            CHECK(msg->senderAwaitsResponse(&replyID));
1519
1520            if (!isExecuting()) {
1521                PostReplyWithError(replyID, INVALID_OPERATION);
1522                break;
1523            } else if (mFlags & kFlagStickyError) {
1524                PostReplyWithError(replyID, getStickyError());
1525                break;
1526            }
1527
1528            status_t err = onReleaseOutputBuffer(msg);
1529
1530            PostReplyWithError(replyID, err);
1531            break;
1532        }
1533
1534        case kWhatSignalEndOfInputStream:
1535        {
1536            uint32_t replyID;
1537            CHECK(msg->senderAwaitsResponse(&replyID));
1538
1539            if (!isExecuting()) {
1540                PostReplyWithError(replyID, INVALID_OPERATION);
1541                break;
1542            } else if (mFlags & kFlagStickyError) {
1543                PostReplyWithError(replyID, getStickyError());
1544                break;
1545            }
1546
1547            mReplyID = replyID;
1548            mCodec->signalEndOfInputStream();
1549            break;
1550        }
1551
1552        case kWhatGetBuffers:
1553        {
1554            uint32_t replyID;
1555            CHECK(msg->senderAwaitsResponse(&replyID));
1556
1557            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1558                PostReplyWithError(replyID, INVALID_OPERATION);
1559                break;
1560            } else if (mFlags & kFlagStickyError) {
1561                PostReplyWithError(replyID, getStickyError());
1562                break;
1563            }
1564
1565            int32_t portIndex;
1566            CHECK(msg->findInt32("portIndex", &portIndex));
1567
1568            Vector<sp<ABuffer> > *dstBuffers;
1569            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1570
1571            dstBuffers->clear();
1572            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1573
1574            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1575                const BufferInfo &info = srcBuffers.itemAt(i);
1576
1577                dstBuffers->push_back(
1578                        (portIndex == kPortIndexInput && mCrypto != NULL)
1579                                ? info.mEncryptedData : info.mData);
1580            }
1581
1582            (new AMessage)->postReply(replyID);
1583            break;
1584        }
1585
1586        case kWhatFlush:
1587        {
1588            uint32_t replyID;
1589            CHECK(msg->senderAwaitsResponse(&replyID));
1590
1591            if (!isExecuting()) {
1592                PostReplyWithError(replyID, INVALID_OPERATION);
1593                break;
1594            } else if (mFlags & kFlagStickyError) {
1595                PostReplyWithError(replyID, getStickyError());
1596                break;
1597            }
1598
1599            mReplyID = replyID;
1600            // TODO: skip flushing if already FLUSHED
1601            setState(FLUSHING);
1602
1603            mCodec->signalFlush();
1604            returnBuffersToCodec();
1605            break;
1606        }
1607
1608        case kWhatGetInputFormat:
1609        case kWhatGetOutputFormat:
1610        {
1611            sp<AMessage> format =
1612                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1613
1614            uint32_t replyID;
1615            CHECK(msg->senderAwaitsResponse(&replyID));
1616
1617            if ((mState != CONFIGURED && mState != STARTING &&
1618                 mState != STARTED && mState != FLUSHING &&
1619                 mState != FLUSHED)
1620                    || format == NULL) {
1621                PostReplyWithError(replyID, INVALID_OPERATION);
1622                break;
1623            } else if (mFlags & kFlagStickyError) {
1624                PostReplyWithError(replyID, getStickyError());
1625                break;
1626            }
1627
1628            sp<AMessage> response = new AMessage;
1629            response->setMessage("format", format);
1630            response->postReply(replyID);
1631            break;
1632        }
1633
1634        case kWhatRequestIDRFrame:
1635        {
1636            mCodec->signalRequestIDRFrame();
1637            break;
1638        }
1639
1640        case kWhatRequestActivityNotification:
1641        {
1642            CHECK(mActivityNotify == NULL);
1643            CHECK(msg->findMessage("notify", &mActivityNotify));
1644
1645            postActivityNotificationIfPossible();
1646            break;
1647        }
1648
1649        case kWhatGetName:
1650        {
1651            uint32_t replyID;
1652            CHECK(msg->senderAwaitsResponse(&replyID));
1653
1654            if (mComponentName.empty()) {
1655                PostReplyWithError(replyID, INVALID_OPERATION);
1656                break;
1657            }
1658
1659            sp<AMessage> response = new AMessage;
1660            response->setString("name", mComponentName.c_str());
1661            response->postReply(replyID);
1662            break;
1663        }
1664
1665        case kWhatSetParameters:
1666        {
1667            uint32_t replyID;
1668            CHECK(msg->senderAwaitsResponse(&replyID));
1669
1670            sp<AMessage> params;
1671            CHECK(msg->findMessage("params", &params));
1672
1673            status_t err = onSetParameters(params);
1674
1675            PostReplyWithError(replyID, err);
1676            break;
1677        }
1678
1679        default:
1680            TRESPASS();
1681    }
1682}
1683
1684void MediaCodec::extractCSD(const sp<AMessage> &format) {
1685    mCSD.clear();
1686
1687    size_t i = 0;
1688    for (;;) {
1689        sp<ABuffer> csd;
1690        if (!format->findBuffer(StringPrintf("csd-%u", i).c_str(), &csd)) {
1691            break;
1692        }
1693
1694        mCSD.push_back(csd);
1695        ++i;
1696    }
1697
1698    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1699}
1700
1701status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1702    CHECK(!mCSD.empty());
1703
1704    const BufferInfo *info =
1705        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1706
1707    sp<ABuffer> csd = *mCSD.begin();
1708    mCSD.erase(mCSD.begin());
1709
1710    const sp<ABuffer> &codecInputData =
1711        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1712
1713    if (csd->size() > codecInputData->capacity()) {
1714        return -EINVAL;
1715    }
1716
1717    memcpy(codecInputData->data(), csd->data(), csd->size());
1718
1719    AString errorDetailMsg;
1720
1721    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1722    msg->setSize("index", bufferIndex);
1723    msg->setSize("offset", 0);
1724    msg->setSize("size", csd->size());
1725    msg->setInt64("timeUs", 0ll);
1726    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1727    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1728
1729    return onQueueInputBuffer(msg);
1730}
1731
1732void MediaCodec::setState(State newState) {
1733    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1734        delete mSoftRenderer;
1735        mSoftRenderer = NULL;
1736
1737        mCrypto.clear();
1738        setNativeWindow(NULL);
1739
1740        mInputFormat.clear();
1741        mOutputFormat.clear();
1742        mFlags &= ~kFlagOutputFormatChanged;
1743        mFlags &= ~kFlagOutputBuffersChanged;
1744        mFlags &= ~kFlagStickyError;
1745        mFlags &= ~kFlagIsEncoder;
1746        mFlags &= ~kFlagGatherCodecSpecificData;
1747        mFlags &= ~kFlagIsAsync;
1748        mStickyError = OK;
1749
1750        mActivityNotify.clear();
1751        mCallback.clear();
1752    }
1753
1754    if (newState == UNINITIALIZED) {
1755        // return any straggling buffers, e.g. if we got here on an error
1756        returnBuffersToCodec();
1757
1758        mComponentName.clear();
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