MediaCodec.cpp revision 0a08a1e0dd576f0682cf7d665fe940bc26af52d7 
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                        mFlags &= ~kFlagIsComponentAllocated;
752                    }
753
754                    bool sendErrorResponse = true;
755
756                    switch (mState) {
757                        case INITIALIZING:
758                        {
759                            setState(UNINITIALIZED);
760                            break;
761                        }
762
763                        case CONFIGURING:
764                        {
765                            setState(actionCode == ACTION_CODE_FATAL ?
766                                    UNINITIALIZED : INITIALIZED);
767                            break;
768                        }
769
770                        case STARTING:
771                        {
772                            setState(actionCode == ACTION_CODE_FATAL ?
773                                    UNINITIALIZED : CONFIGURED);
774                            break;
775                        }
776
777                        case STOPPING:
778                        case RELEASING:
779                        {
780                            // Ignore the error, assuming we'll still get
781                            // the shutdown complete notification.
782
783                            sendErrorResponse = false;
784
785                            if (mFlags & kFlagSawMediaServerDie) {
786                                // MediaServer died, there definitely won't
787                                // be a shutdown complete notification after
788                                // all.
789
790                                // note that we're directly going from
791                                // STOPPING->UNINITIALIZED, instead of the
792                                // usual STOPPING->INITIALIZED state.
793                                setState(UNINITIALIZED);
794                                if (mState == RELEASING) {
795                                    mComponentName.clear();
796                                }
797                                (new AMessage)->postReply(mReplyID);
798                            }
799                            break;
800                        }
801
802                        case FLUSHING:
803                        {
804                            if (actionCode == ACTION_CODE_FATAL) {
805                                setState(UNINITIALIZED);
806                            } else {
807                                setState(
808                                        (mFlags & kFlagIsAsync) ? FLUSHED : STARTED);
809                            }
810                            break;
811                        }
812
813                        case FLUSHED:
814                        case STARTED:
815                        {
816                            sendErrorResponse = false;
817
818                            setStickyError(err);
819                            postActivityNotificationIfPossible();
820
821                            cancelPendingDequeueOperations();
822
823                            if (mFlags & kFlagIsAsync) {
824                                onError(err, actionCode);
825                            }
826                            switch (actionCode) {
827                            case ACTION_CODE_TRANSIENT:
828                                break;
829                            case ACTION_CODE_RECOVERABLE:
830                                setState(INITIALIZED);
831                                break;
832                            default:
833                                setState(UNINITIALIZED);
834                                break;
835                            }
836                            break;
837                        }
838
839                        default:
840                        {
841                            sendErrorResponse = false;
842
843                            setStickyError(err);
844                            postActivityNotificationIfPossible();
845
846                            // actionCode in an uninitialized state is always fatal.
847                            if (mState == UNINITIALIZED) {
848                                actionCode = ACTION_CODE_FATAL;
849                            }
850                            if (mFlags & kFlagIsAsync) {
851                                onError(err, actionCode);
852                            }
853                            switch (actionCode) {
854                            case ACTION_CODE_TRANSIENT:
855                                break;
856                            case ACTION_CODE_RECOVERABLE:
857                                setState(INITIALIZED);
858                                break;
859                            default:
860                                setState(UNINITIALIZED);
861                                break;
862                            }
863                            break;
864                        }
865                    }
866
867                    if (sendErrorResponse) {
868                        PostReplyWithError(mReplyID, err);
869                    }
870                    break;
871                }
872
873                case CodecBase::kWhatComponentAllocated:
874                {
875                    CHECK_EQ(mState, INITIALIZING);
876                    setState(INITIALIZED);
877                    mFlags |= kFlagIsComponentAllocated;
878
879                    CHECK(msg->findString("componentName", &mComponentName));
880
881                    if (mComponentName.startsWith("OMX.google.")) {
882                        mFlags |= kFlagIsSoftwareCodec;
883                    } else {
884                        mFlags &= ~kFlagIsSoftwareCodec;
885                    }
886
887                    if (mComponentName.endsWith(".secure")) {
888                        mFlags |= kFlagIsSecure;
889                    } else {
890                        mFlags &= ~kFlagIsSecure;
891                    }
892
893                    (new AMessage)->postReply(mReplyID);
894                    break;
895                }
896
897                case CodecBase::kWhatComponentConfigured:
898                {
899                    CHECK_EQ(mState, CONFIGURING);
900
901                    // reset input surface flag
902                    mHaveInputSurface = false;
903
904                    CHECK(msg->findMessage("input-format", &mInputFormat));
905                    CHECK(msg->findMessage("output-format", &mOutputFormat));
906
907                    setState(CONFIGURED);
908                    (new AMessage)->postReply(mReplyID);
909                    break;
910                }
911
912                case CodecBase::kWhatInputSurfaceCreated:
913                {
914                    // response to initiateCreateInputSurface()
915                    status_t err = NO_ERROR;
916                    sp<AMessage> response = new AMessage();
917                    if (!msg->findInt32("err", &err)) {
918                        sp<RefBase> obj;
919                        msg->findObject("input-surface", &obj);
920                        CHECK(obj != NULL);
921                        response->setObject("input-surface", obj);
922                        mHaveInputSurface = true;
923                    } else {
924                        response->setInt32("err", err);
925                    }
926                    response->postReply(mReplyID);
927                    break;
928                }
929
930                case CodecBase::kWhatSignaledInputEOS:
931                {
932                    // response to signalEndOfInputStream()
933                    sp<AMessage> response = new AMessage();
934                    status_t err;
935                    if (msg->findInt32("err", &err)) {
936                        response->setInt32("err", err);
937                    }
938                    response->postReply(mReplyID);
939                    break;
940                }
941
942
943                case CodecBase::kWhatBuffersAllocated:
944                {
945                    Mutex::Autolock al(mBufferLock);
946                    int32_t portIndex;
947                    CHECK(msg->findInt32("portIndex", &portIndex));
948
949                    ALOGV("%s buffers allocated",
950                          portIndex == kPortIndexInput ? "input" : "output");
951
952                    CHECK(portIndex == kPortIndexInput
953                            || portIndex == kPortIndexOutput);
954
955                    mPortBuffers[portIndex].clear();
956
957                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
958
959                    sp<RefBase> obj;
960                    CHECK(msg->findObject("portDesc", &obj));
961
962                    sp<CodecBase::PortDescription> portDesc =
963                        static_cast<CodecBase::PortDescription *>(obj.get());
964
965                    size_t numBuffers = portDesc->countBuffers();
966
967                    for (size_t i = 0; i < numBuffers; ++i) {
968                        BufferInfo info;
969                        info.mBufferID = portDesc->bufferIDAt(i);
970                        info.mOwnedByClient = false;
971                        info.mData = portDesc->bufferAt(i);
972
973                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
974                            info.mEncryptedData =
975                                new ABuffer(info.mData->capacity());
976                        }
977
978                        buffers->push_back(info);
979                    }
980
981                    if (portIndex == kPortIndexOutput) {
982                        if (mState == STARTING) {
983                            // We're always allocating output buffers after
984                            // allocating input buffers, so this is a good
985                            // indication that now all buffers are allocated.
986                            setState(STARTED);
987                            (new AMessage)->postReply(mReplyID);
988                        } else {
989                            mFlags |= kFlagOutputBuffersChanged;
990                            postActivityNotificationIfPossible();
991                        }
992                    }
993                    break;
994                }
995
996                case CodecBase::kWhatOutputFormatChanged:
997                {
998                    ALOGV("codec output format changed");
999
1000                    if (mSoftRenderer == NULL &&
1001                            mNativeWindow != NULL &&
1002                            (mFlags & kFlagIsSoftwareCodec)) {
1003                        AString mime;
1004                        CHECK(msg->findString("mime", &mime));
1005
1006                        if (mime.startsWithIgnoreCase("video/")) {
1007                            mSoftRenderer = new SoftwareRenderer(mNativeWindow);
1008                        }
1009                    }
1010
1011                    mOutputFormat = msg;
1012
1013                    if (mFlags & kFlagIsEncoder) {
1014                        // Before we announce the format change we should
1015                        // collect codec specific data and amend the output
1016                        // format as necessary.
1017                        mFlags |= kFlagGatherCodecSpecificData;
1018                    } else if (mFlags & kFlagIsAsync) {
1019                        onOutputFormatChanged();
1020                    } else {
1021                        mFlags |= kFlagOutputFormatChanged;
1022                        postActivityNotificationIfPossible();
1023                    }
1024
1025                    // Notify mCrypto of video resolution changes
1026                    if (mCrypto != NULL) {
1027                        int32_t left, top, right, bottom, width, height;
1028                        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
1029                            mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
1030                        } else if (mOutputFormat->findInt32("width", &width)
1031                                && mOutputFormat->findInt32("height", &height)) {
1032                            mCrypto->notifyResolution(width, height);
1033                        }
1034                    }
1035
1036                    break;
1037                }
1038
1039                case CodecBase::kWhatFillThisBuffer:
1040                {
1041                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1042
1043                    if (mState == FLUSHING
1044                            || mState == STOPPING
1045                            || mState == RELEASING) {
1046                        returnBuffersToCodecOnPort(kPortIndexInput);
1047                        break;
1048                    }
1049
1050                    if (!mCSD.empty()) {
1051                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1052                        CHECK_GE(index, 0);
1053
1054                        // If codec specific data had been specified as
1055                        // part of the format in the call to configure and
1056                        // if there's more csd left, we submit it here
1057                        // clients only get access to input buffers once
1058                        // this data has been exhausted.
1059
1060                        status_t err = queueCSDInputBuffer(index);
1061
1062                        if (err != OK) {
1063                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1064                                  err);
1065
1066                            setStickyError(err);
1067                            postActivityNotificationIfPossible();
1068
1069                            cancelPendingDequeueOperations();
1070                        }
1071                        break;
1072                    }
1073
1074                    if (mFlags & kFlagIsAsync) {
1075                        if (!mHaveInputSurface) {
1076                            onInputBufferAvailable();
1077                        }
1078                    } else if (mFlags & kFlagDequeueInputPending) {
1079                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1080
1081                        ++mDequeueInputTimeoutGeneration;
1082                        mFlags &= ~kFlagDequeueInputPending;
1083                        mDequeueInputReplyID = 0;
1084                    } else {
1085                        postActivityNotificationIfPossible();
1086                    }
1087                    break;
1088                }
1089
1090                case CodecBase::kWhatDrainThisBuffer:
1091                {
1092                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1093
1094                    if (mState == FLUSHING
1095                            || mState == STOPPING
1096                            || mState == RELEASING) {
1097                        returnBuffersToCodecOnPort(kPortIndexOutput);
1098                        break;
1099                    }
1100
1101                    sp<ABuffer> buffer;
1102                    CHECK(msg->findBuffer("buffer", &buffer));
1103
1104                    int32_t omxFlags;
1105                    CHECK(msg->findInt32("flags", &omxFlags));
1106
1107                    buffer->meta()->setInt32("omxFlags", omxFlags);
1108
1109                    if (mFlags & kFlagGatherCodecSpecificData) {
1110                        // This is the very first output buffer after a
1111                        // format change was signalled, it'll either contain
1112                        // the one piece of codec specific data we can expect
1113                        // or there won't be codec specific data.
1114                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1115                            status_t err =
1116                                amendOutputFormatWithCodecSpecificData(buffer);
1117
1118                            if (err != OK) {
1119                                ALOGE("Codec spit out malformed codec "
1120                                      "specific data!");
1121                            }
1122                        }
1123
1124                        mFlags &= ~kFlagGatherCodecSpecificData;
1125                        if (mFlags & kFlagIsAsync) {
1126                            onOutputFormatChanged();
1127                        } else {
1128                            mFlags |= kFlagOutputFormatChanged;
1129                        }
1130                    }
1131
1132                    if (mFlags & kFlagIsAsync) {
1133                        onOutputBufferAvailable();
1134                    } else if (mFlags & kFlagDequeueOutputPending) {
1135                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1136
1137                        ++mDequeueOutputTimeoutGeneration;
1138                        mFlags &= ~kFlagDequeueOutputPending;
1139                        mDequeueOutputReplyID = 0;
1140                    } else {
1141                        postActivityNotificationIfPossible();
1142                    }
1143
1144                    break;
1145                }
1146
1147                case CodecBase::kWhatEOS:
1148                {
1149                    // We already notify the client of this by using the
1150                    // corresponding flag in "onOutputBufferReady".
1151                    break;
1152                }
1153
1154                case CodecBase::kWhatShutdownCompleted:
1155                {
1156                    if (mState == STOPPING) {
1157                        setState(INITIALIZED);
1158                    } else {
1159                        CHECK_EQ(mState, RELEASING);
1160                        setState(UNINITIALIZED);
1161                        mComponentName.clear();
1162                    }
1163                    mFlags &= ~kFlagIsComponentAllocated;
1164
1165                    (new AMessage)->postReply(mReplyID);
1166                    break;
1167                }
1168
1169                case CodecBase::kWhatFlushCompleted:
1170                {
1171                    if (mState != FLUSHING) {
1172                        ALOGW("received FlushCompleted message in state %d",
1173                                mState);
1174                        break;
1175                    }
1176
1177                    if (mFlags & kFlagIsAsync) {
1178                        setState(FLUSHED);
1179                    } else {
1180                        setState(STARTED);
1181                        mCodec->signalResume();
1182                    }
1183
1184                    (new AMessage)->postReply(mReplyID);
1185                    break;
1186                }
1187
1188                default:
1189                    TRESPASS();
1190            }
1191            break;
1192        }
1193
1194        case kWhatInit:
1195        {
1196            uint32_t replyID;
1197            CHECK(msg->senderAwaitsResponse(&replyID));
1198
1199            if (mState != UNINITIALIZED) {
1200                PostReplyWithError(replyID, INVALID_OPERATION);
1201                break;
1202            }
1203
1204            mReplyID = replyID;
1205            setState(INITIALIZING);
1206
1207            AString name;
1208            CHECK(msg->findString("name", &name));
1209
1210            int32_t nameIsType;
1211            int32_t encoder = false;
1212            CHECK(msg->findInt32("nameIsType", &nameIsType));
1213            if (nameIsType) {
1214                CHECK(msg->findInt32("encoder", &encoder));
1215            }
1216
1217            sp<AMessage> format = new AMessage;
1218
1219            if (nameIsType) {
1220                format->setString("mime", name.c_str());
1221                format->setInt32("encoder", encoder);
1222            } else {
1223                format->setString("componentName", name.c_str());
1224            }
1225
1226            mCodec->initiateAllocateComponent(format);
1227            break;
1228        }
1229
1230        case kWhatSetCallback:
1231        {
1232            uint32_t replyID;
1233            CHECK(msg->senderAwaitsResponse(&replyID));
1234
1235            if (mState == UNINITIALIZED
1236                    || mState == INITIALIZING
1237                    || isExecuting()) {
1238                // callback can't be set after codec is executing,
1239                // or before it's initialized (as the callback
1240                // will be cleared when it goes to INITIALIZED)
1241                PostReplyWithError(replyID, INVALID_OPERATION);
1242                break;
1243            }
1244
1245            sp<AMessage> callback;
1246            CHECK(msg->findMessage("callback", &callback));
1247
1248            mCallback = callback;
1249
1250            if (mCallback != NULL) {
1251                ALOGI("MediaCodec will operate in async mode");
1252                mFlags |= kFlagIsAsync;
1253            } else {
1254                mFlags &= ~kFlagIsAsync;
1255            }
1256
1257            sp<AMessage> response = new AMessage;
1258            response->postReply(replyID);
1259            break;
1260        }
1261
1262        case kWhatConfigure:
1263        {
1264            uint32_t replyID;
1265            CHECK(msg->senderAwaitsResponse(&replyID));
1266
1267            if (mState != INITIALIZED) {
1268                PostReplyWithError(replyID, INVALID_OPERATION);
1269                break;
1270            }
1271
1272            sp<RefBase> obj;
1273            if (!msg->findObject("native-window", &obj)) {
1274                obj.clear();
1275            }
1276
1277            sp<AMessage> format;
1278            CHECK(msg->findMessage("format", &format));
1279
1280            if (obj != NULL) {
1281                format->setObject("native-window", obj);
1282
1283                status_t err = setNativeWindow(
1284                    static_cast<NativeWindowWrapper *>(obj.get())
1285                        ->getSurfaceTextureClient());
1286
1287                if (err != OK) {
1288                    PostReplyWithError(replyID, err);
1289                    break;
1290                }
1291            } else {
1292                setNativeWindow(NULL);
1293            }
1294
1295            mReplyID = replyID;
1296            setState(CONFIGURING);
1297
1298            void *crypto;
1299            if (!msg->findPointer("crypto", &crypto)) {
1300                crypto = NULL;
1301            }
1302
1303            mCrypto = static_cast<ICrypto *>(crypto);
1304
1305            uint32_t flags;
1306            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1307
1308            if (flags & CONFIGURE_FLAG_ENCODE) {
1309                format->setInt32("encoder", true);
1310                mFlags |= kFlagIsEncoder;
1311            }
1312
1313            extractCSD(format);
1314
1315            mCodec->initiateConfigureComponent(format);
1316            break;
1317        }
1318
1319        case kWhatCreateInputSurface:
1320        {
1321            uint32_t replyID;
1322            CHECK(msg->senderAwaitsResponse(&replyID));
1323
1324            // Must be configured, but can't have been started yet.
1325            if (mState != CONFIGURED) {
1326                PostReplyWithError(replyID, INVALID_OPERATION);
1327                break;
1328            }
1329
1330            mReplyID = replyID;
1331            mCodec->initiateCreateInputSurface();
1332            break;
1333        }
1334
1335        case kWhatStart:
1336        {
1337            uint32_t replyID;
1338            CHECK(msg->senderAwaitsResponse(&replyID));
1339
1340            if (mState == FLUSHED) {
1341                setState(STARTED);
1342                mCodec->signalResume();
1343                PostReplyWithError(replyID, OK);
1344                break;
1345            } else if (mState != CONFIGURED) {
1346                PostReplyWithError(replyID, INVALID_OPERATION);
1347                break;
1348            }
1349
1350            mReplyID = replyID;
1351            setState(STARTING);
1352
1353            mCodec->initiateStart();
1354            break;
1355        }
1356
1357        case kWhatStop:
1358        case kWhatRelease:
1359        {
1360            State targetState =
1361                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1362
1363            uint32_t replyID;
1364            CHECK(msg->senderAwaitsResponse(&replyID));
1365
1366            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
1367                    && mState != INITIALIZED
1368                    && mState != CONFIGURED && !isExecuting()) {
1369                // 1) Permit release to shut down the component if allocated.
1370                //
1371                // 2) We may be in "UNINITIALIZED" state already and
1372                // also shutdown the encoder/decoder without the
1373                // client being aware of this if media server died while
1374                // we were being stopped. The client would assume that
1375                // after stop() returned, it would be safe to call release()
1376                // and it should be in this case, no harm to allow a release()
1377                // if we're already uninitialized.
1378                sp<AMessage> response = new AMessage;
1379                status_t err = mState == targetState ? OK : INVALID_OPERATION;
1380                response->setInt32("err", err);
1381                if (err == OK && targetState == UNINITIALIZED) {
1382                    mComponentName.clear();
1383                }
1384                response->postReply(replyID);
1385                break;
1386            }
1387
1388            if (mFlags & kFlagSawMediaServerDie) {
1389                // It's dead, Jim. Don't expect initiateShutdown to yield
1390                // any useful results now...
1391                setState(UNINITIALIZED);
1392                if (targetState == UNINITIALIZED) {
1393                    mComponentName.clear();
1394                }
1395                (new AMessage)->postReply(replyID);
1396                break;
1397            }
1398
1399            mReplyID = replyID;
1400            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1401
1402            mCodec->initiateShutdown(
1403                    msg->what() == kWhatStop /* keepComponentAllocated */);
1404
1405            returnBuffersToCodec();
1406            break;
1407        }
1408
1409        case kWhatDequeueInputBuffer:
1410        {
1411            uint32_t replyID;
1412            CHECK(msg->senderAwaitsResponse(&replyID));
1413
1414            if (mFlags & kFlagIsAsync) {
1415                ALOGE("dequeueOutputBuffer can't be used in async mode");
1416                PostReplyWithError(replyID, INVALID_OPERATION);
1417                break;
1418            }
1419
1420            if (mHaveInputSurface) {
1421                ALOGE("dequeueInputBuffer can't be used with input surface");
1422                PostReplyWithError(replyID, INVALID_OPERATION);
1423                break;
1424            }
1425
1426            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1427                break;
1428            }
1429
1430            int64_t timeoutUs;
1431            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1432
1433            if (timeoutUs == 0ll) {
1434                PostReplyWithError(replyID, -EAGAIN);
1435                break;
1436            }
1437
1438            mFlags |= kFlagDequeueInputPending;
1439            mDequeueInputReplyID = replyID;
1440
1441            if (timeoutUs > 0ll) {
1442                sp<AMessage> timeoutMsg =
1443                    new AMessage(kWhatDequeueInputTimedOut, id());
1444                timeoutMsg->setInt32(
1445                        "generation", ++mDequeueInputTimeoutGeneration);
1446                timeoutMsg->post(timeoutUs);
1447            }
1448            break;
1449        }
1450
1451        case kWhatDequeueInputTimedOut:
1452        {
1453            int32_t generation;
1454            CHECK(msg->findInt32("generation", &generation));
1455
1456            if (generation != mDequeueInputTimeoutGeneration) {
1457                // Obsolete
1458                break;
1459            }
1460
1461            CHECK(mFlags & kFlagDequeueInputPending);
1462
1463            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1464
1465            mFlags &= ~kFlagDequeueInputPending;
1466            mDequeueInputReplyID = 0;
1467            break;
1468        }
1469
1470        case kWhatQueueInputBuffer:
1471        {
1472            uint32_t replyID;
1473            CHECK(msg->senderAwaitsResponse(&replyID));
1474
1475            if (!isExecuting()) {
1476                PostReplyWithError(replyID, INVALID_OPERATION);
1477                break;
1478            } else if (mFlags & kFlagStickyError) {
1479                PostReplyWithError(replyID, getStickyError());
1480                break;
1481            }
1482
1483            status_t err = onQueueInputBuffer(msg);
1484
1485            PostReplyWithError(replyID, err);
1486            break;
1487        }
1488
1489        case kWhatDequeueOutputBuffer:
1490        {
1491            uint32_t replyID;
1492            CHECK(msg->senderAwaitsResponse(&replyID));
1493
1494            if (mFlags & kFlagIsAsync) {
1495                ALOGE("dequeueOutputBuffer can't be used in async mode");
1496                PostReplyWithError(replyID, INVALID_OPERATION);
1497                break;
1498            }
1499
1500            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1501                break;
1502            }
1503
1504            int64_t timeoutUs;
1505            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1506
1507            if (timeoutUs == 0ll) {
1508                PostReplyWithError(replyID, -EAGAIN);
1509                break;
1510            }
1511
1512            mFlags |= kFlagDequeueOutputPending;
1513            mDequeueOutputReplyID = replyID;
1514
1515            if (timeoutUs > 0ll) {
1516                sp<AMessage> timeoutMsg =
1517                    new AMessage(kWhatDequeueOutputTimedOut, id());
1518                timeoutMsg->setInt32(
1519                        "generation", ++mDequeueOutputTimeoutGeneration);
1520                timeoutMsg->post(timeoutUs);
1521            }
1522            break;
1523        }
1524
1525        case kWhatDequeueOutputTimedOut:
1526        {
1527            int32_t generation;
1528            CHECK(msg->findInt32("generation", &generation));
1529
1530            if (generation != mDequeueOutputTimeoutGeneration) {
1531                // Obsolete
1532                break;
1533            }
1534
1535            CHECK(mFlags & kFlagDequeueOutputPending);
1536
1537            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1538
1539            mFlags &= ~kFlagDequeueOutputPending;
1540            mDequeueOutputReplyID = 0;
1541            break;
1542        }
1543
1544        case kWhatReleaseOutputBuffer:
1545        {
1546            uint32_t replyID;
1547            CHECK(msg->senderAwaitsResponse(&replyID));
1548
1549            if (!isExecuting()) {
1550                PostReplyWithError(replyID, INVALID_OPERATION);
1551                break;
1552            } else if (mFlags & kFlagStickyError) {
1553                PostReplyWithError(replyID, getStickyError());
1554                break;
1555            }
1556
1557            status_t err = onReleaseOutputBuffer(msg);
1558
1559            PostReplyWithError(replyID, err);
1560            break;
1561        }
1562
1563        case kWhatSignalEndOfInputStream:
1564        {
1565            uint32_t replyID;
1566            CHECK(msg->senderAwaitsResponse(&replyID));
1567
1568            if (!isExecuting()) {
1569                PostReplyWithError(replyID, INVALID_OPERATION);
1570                break;
1571            } else if (mFlags & kFlagStickyError) {
1572                PostReplyWithError(replyID, getStickyError());
1573                break;
1574            }
1575
1576            mReplyID = replyID;
1577            mCodec->signalEndOfInputStream();
1578            break;
1579        }
1580
1581        case kWhatGetBuffers:
1582        {
1583            uint32_t replyID;
1584            CHECK(msg->senderAwaitsResponse(&replyID));
1585
1586            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1587                PostReplyWithError(replyID, INVALID_OPERATION);
1588                break;
1589            } else if (mFlags & kFlagStickyError) {
1590                PostReplyWithError(replyID, getStickyError());
1591                break;
1592            }
1593
1594            int32_t portIndex;
1595            CHECK(msg->findInt32("portIndex", &portIndex));
1596
1597            Vector<sp<ABuffer> > *dstBuffers;
1598            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1599
1600            dstBuffers->clear();
1601            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1602
1603            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1604                const BufferInfo &info = srcBuffers.itemAt(i);
1605
1606                dstBuffers->push_back(
1607                        (portIndex == kPortIndexInput && mCrypto != NULL)
1608                                ? info.mEncryptedData : info.mData);
1609            }
1610
1611            (new AMessage)->postReply(replyID);
1612            break;
1613        }
1614
1615        case kWhatFlush:
1616        {
1617            uint32_t replyID;
1618            CHECK(msg->senderAwaitsResponse(&replyID));
1619
1620            if (!isExecuting()) {
1621                PostReplyWithError(replyID, INVALID_OPERATION);
1622                break;
1623            } else if (mFlags & kFlagStickyError) {
1624                PostReplyWithError(replyID, getStickyError());
1625                break;
1626            }
1627
1628            mReplyID = replyID;
1629            // TODO: skip flushing if already FLUSHED
1630            setState(FLUSHING);
1631
1632            mCodec->signalFlush();
1633            returnBuffersToCodec();
1634            break;
1635        }
1636
1637        case kWhatGetInputFormat:
1638        case kWhatGetOutputFormat:
1639        {
1640            sp<AMessage> format =
1641                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1642
1643            uint32_t replyID;
1644            CHECK(msg->senderAwaitsResponse(&replyID));
1645
1646            if ((mState != CONFIGURED && mState != STARTING &&
1647                 mState != STARTED && mState != FLUSHING &&
1648                 mState != FLUSHED)
1649                    || format == NULL) {
1650                PostReplyWithError(replyID, INVALID_OPERATION);
1651                break;
1652            } else if (mFlags & kFlagStickyError) {
1653                PostReplyWithError(replyID, getStickyError());
1654                break;
1655            }
1656
1657            sp<AMessage> response = new AMessage;
1658            response->setMessage("format", format);
1659            response->postReply(replyID);
1660            break;
1661        }
1662
1663        case kWhatRequestIDRFrame:
1664        {
1665            mCodec->signalRequestIDRFrame();
1666            break;
1667        }
1668
1669        case kWhatRequestActivityNotification:
1670        {
1671            CHECK(mActivityNotify == NULL);
1672            CHECK(msg->findMessage("notify", &mActivityNotify));
1673
1674            postActivityNotificationIfPossible();
1675            break;
1676        }
1677
1678        case kWhatGetName:
1679        {
1680            uint32_t replyID;
1681            CHECK(msg->senderAwaitsResponse(&replyID));
1682
1683            if (mComponentName.empty()) {
1684                PostReplyWithError(replyID, INVALID_OPERATION);
1685                break;
1686            }
1687
1688            sp<AMessage> response = new AMessage;
1689            response->setString("name", mComponentName.c_str());
1690            response->postReply(replyID);
1691            break;
1692        }
1693
1694        case kWhatSetParameters:
1695        {
1696            uint32_t replyID;
1697            CHECK(msg->senderAwaitsResponse(&replyID));
1698
1699            sp<AMessage> params;
1700            CHECK(msg->findMessage("params", &params));
1701
1702            status_t err = onSetParameters(params);
1703
1704            PostReplyWithError(replyID, err);
1705            break;
1706        }
1707
1708        default:
1709            TRESPASS();
1710    }
1711}
1712
1713void MediaCodec::extractCSD(const sp<AMessage> &format) {
1714    mCSD.clear();
1715
1716    size_t i = 0;
1717    for (;;) {
1718        sp<ABuffer> csd;
1719        if (!format->findBuffer(AStringPrintf("csd-%u", i).c_str(), &csd)) {
1720            break;
1721        }
1722
1723        mCSD.push_back(csd);
1724        ++i;
1725    }
1726
1727    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1728}
1729
1730status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1731    CHECK(!mCSD.empty());
1732
1733    const BufferInfo *info =
1734        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1735
1736    sp<ABuffer> csd = *mCSD.begin();
1737    mCSD.erase(mCSD.begin());
1738
1739    const sp<ABuffer> &codecInputData =
1740        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1741
1742    if (csd->size() > codecInputData->capacity()) {
1743        return -EINVAL;
1744    }
1745
1746    memcpy(codecInputData->data(), csd->data(), csd->size());
1747
1748    AString errorDetailMsg;
1749
1750    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1751    msg->setSize("index", bufferIndex);
1752    msg->setSize("offset", 0);
1753    msg->setSize("size", csd->size());
1754    msg->setInt64("timeUs", 0ll);
1755    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1756    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1757
1758    return onQueueInputBuffer(msg);
1759}
1760
1761void MediaCodec::setState(State newState) {
1762    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1763        delete mSoftRenderer;
1764        mSoftRenderer = NULL;
1765
1766        mCrypto.clear();
1767        setNativeWindow(NULL);
1768
1769        mInputFormat.clear();
1770        mOutputFormat.clear();
1771        mFlags &= ~kFlagOutputFormatChanged;
1772        mFlags &= ~kFlagOutputBuffersChanged;
1773        mFlags &= ~kFlagStickyError;
1774        mFlags &= ~kFlagIsEncoder;
1775        mFlags &= ~kFlagGatherCodecSpecificData;
1776        mFlags &= ~kFlagIsAsync;
1777        mStickyError = OK;
1778
1779        mActivityNotify.clear();
1780        mCallback.clear();
1781    }
1782
1783    if (newState == UNINITIALIZED) {
1784        // return any straggling buffers, e.g. if we got here on an error
1785        returnBuffersToCodec();
1786
1787        // The component is gone, mediaserver's probably back up already
1788        // but should definitely be back up should we try to instantiate
1789        // another component.. and the cycle continues.
1790        mFlags &= ~kFlagSawMediaServerDie;
1791    }
1792
1793    mState = newState;
1794
1795    cancelPendingDequeueOperations();
1796
1797    updateBatteryStat();
1798}
1799
1800void MediaCodec::returnBuffersToCodec() {
1801    returnBuffersToCodecOnPort(kPortIndexInput);
1802    returnBuffersToCodecOnPort(kPortIndexOutput);
1803}
1804
1805void MediaCodec::returnBuffersToCodecOnPort(int32_t portIndex) {
1806    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1807    Mutex::Autolock al(mBufferLock);
1808
1809    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1810
1811    for (size_t i = 0; i < buffers->size(); ++i) {
1812        BufferInfo *info = &buffers->editItemAt(i);
1813
1814        if (info->mNotify != NULL) {
1815            sp<AMessage> msg = info->mNotify;
1816            info->mNotify = NULL;
1817            info->mOwnedByClient = false;
1818
1819            if (portIndex == kPortIndexInput) {
1820                /* no error, just returning buffers */
1821                msg->setInt32("err", OK);
1822            }
1823            msg->post();
1824        }
1825    }
1826
1827    mAvailPortBuffers[portIndex].clear();
1828}
1829
1830size_t MediaCodec::updateBuffers(
1831        int32_t portIndex, const sp<AMessage> &msg) {
1832    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1833
1834    uint32_t bufferID;
1835    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
1836
1837    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1838
1839    for (size_t i = 0; i < buffers->size(); ++i) {
1840        BufferInfo *info = &buffers->editItemAt(i);
1841
1842        if (info->mBufferID == bufferID) {
1843            CHECK(info->mNotify == NULL);
1844            CHECK(msg->findMessage("reply", &info->mNotify));
1845
1846            info->mFormat =
1847                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
1848            mAvailPortBuffers[portIndex].push_back(i);
1849
1850            return i;
1851        }
1852    }
1853
1854    TRESPASS();
1855
1856    return 0;
1857}
1858
1859status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
1860    size_t index;
1861    size_t offset;
1862    size_t size;
1863    int64_t timeUs;
1864    uint32_t flags;
1865    CHECK(msg->findSize("index", &index));
1866    CHECK(msg->findSize("offset", &offset));
1867    CHECK(msg->findInt64("timeUs", &timeUs));
1868    CHECK(msg->findInt32("flags", (int32_t *)&flags));
1869
1870    const CryptoPlugin::SubSample *subSamples;
1871    size_t numSubSamples;
1872    const uint8_t *key;
1873    const uint8_t *iv;
1874    CryptoPlugin::Mode mode = CryptoPlugin::kMode_Unencrypted;
1875
1876    // We allow the simpler queueInputBuffer API to be used even in
1877    // secure mode, by fabricating a single unencrypted subSample.
1878    CryptoPlugin::SubSample ss;
1879
1880    if (msg->findSize("size", &size)) {
1881        if (mCrypto != NULL) {
1882            ss.mNumBytesOfClearData = size;
1883            ss.mNumBytesOfEncryptedData = 0;
1884
1885            subSamples = &ss;
1886            numSubSamples = 1;
1887            key = NULL;
1888            iv = NULL;
1889        }
1890    } else {
1891        if (mCrypto == NULL) {
1892            return -EINVAL;
1893        }
1894
1895        CHECK(msg->findPointer("subSamples", (void **)&subSamples));
1896        CHECK(msg->findSize("numSubSamples", &numSubSamples));
1897        CHECK(msg->findPointer("key", (void **)&key));
1898        CHECK(msg->findPointer("iv", (void **)&iv));
1899
1900        int32_t tmp;
1901        CHECK(msg->findInt32("mode", &tmp));
1902
1903        mode = (CryptoPlugin::Mode)tmp;
1904
1905        size = 0;
1906        for (size_t i = 0; i < numSubSamples; ++i) {
1907            size += subSamples[i].mNumBytesOfClearData;
1908            size += subSamples[i].mNumBytesOfEncryptedData;
1909        }
1910    }
1911
1912    if (index >= mPortBuffers[kPortIndexInput].size()) {
1913        return -ERANGE;
1914    }
1915
1916    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
1917
1918    if (info->mNotify == NULL || !info->mOwnedByClient) {
1919        return -EACCES;
1920    }
1921
1922    if (offset + size > info->mData->capacity()) {
1923        return -EINVAL;
1924    }
1925
1926    sp<AMessage> reply = info->mNotify;
1927    info->mData->setRange(offset, size);
1928    info->mData->meta()->setInt64("timeUs", timeUs);
1929
1930    if (flags & BUFFER_FLAG_EOS) {
1931        info->mData->meta()->setInt32("eos", true);
1932    }
1933
1934    if (flags & BUFFER_FLAG_CODECCONFIG) {
1935        info->mData->meta()->setInt32("csd", true);
1936    }
1937
1938    if (mCrypto != NULL) {
1939        if (size > info->mEncryptedData->capacity()) {
1940            return -ERANGE;
1941        }
1942
1943        AString *errorDetailMsg;
1944        CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
1945
1946        ssize_t result = mCrypto->decrypt(
1947                (mFlags & kFlagIsSecure) != 0,
1948                key,
1949                iv,
1950                mode,
1951                info->mEncryptedData->base() + offset,
1952                subSamples,
1953                numSubSamples,
1954                info->mData->base(),
1955                errorDetailMsg);
1956
1957        if (result < 0) {
1958            return result;
1959        }
1960
1961        info->mData->setRange(0, result);
1962    }
1963
1964    // synchronization boundary for getBufferAndFormat
1965    {
1966        Mutex::Autolock al(mBufferLock);
1967        info->mOwnedByClient = false;
1968    }
1969    reply->setBuffer("buffer", info->mData);
1970    reply->post();
1971
1972    info->mNotify = NULL;
1973
1974    return OK;
1975}
1976
1977status_t MediaCodec::onReleaseOutputBuffer(const sp<AMessage> &msg) {
1978    size_t index;
1979    CHECK(msg->findSize("index", &index));
1980
1981    int32_t render;
1982    if (!msg->findInt32("render", &render)) {
1983        render = 0;
1984    }
1985
1986    if (!isExecuting()) {
1987        return -EINVAL;
1988    }
1989
1990    if (index >= mPortBuffers[kPortIndexOutput].size()) {
1991        return -ERANGE;
1992    }
1993
1994    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
1995
1996    if (info->mNotify == NULL || !info->mOwnedByClient) {
1997        return -EACCES;
1998    }
1999
2000    // synchronization boundary for getBufferAndFormat
2001    {
2002        Mutex::Autolock al(mBufferLock);
2003        info->mOwnedByClient = false;
2004    }
2005
2006    if (render && info->mData != NULL && info->mData->size() != 0) {
2007        info->mNotify->setInt32("render", true);
2008
2009        int64_t timestampNs = 0;
2010        if (msg->findInt64("timestampNs", &timestampNs)) {
2011            info->mNotify->setInt64("timestampNs", timestampNs);
2012        } else {
2013            // TODO: it seems like we should use the timestamp
2014            // in the (media)buffer as it potentially came from
2015            // an input surface, but we did not propagate it prior to
2016            // API 20.  Perhaps check for target SDK version.
2017#if 0
2018            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
2019                ALOGV("using buffer PTS of %" PRId64, timestampNs);
2020                timestampNs *= 1000;
2021            }
2022#endif
2023        }
2024
2025        if (mSoftRenderer != NULL) {
2026            mSoftRenderer->render(
2027                    info->mData->data(), info->mData->size(),
2028                    timestampNs, NULL, info->mFormat);
2029        }
2030    }
2031
2032    info->mNotify->post();
2033    info->mNotify = NULL;
2034
2035    return OK;
2036}
2037
2038ssize_t MediaCodec::dequeuePortBuffer(int32_t portIndex) {
2039    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
2040
2041    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
2042
2043    if (availBuffers->empty()) {
2044        return -EAGAIN;
2045    }
2046
2047    size_t index = *availBuffers->begin();
2048    availBuffers->erase(availBuffers->begin());
2049
2050    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
2051    CHECK(!info->mOwnedByClient);
2052    {
2053        Mutex::Autolock al(mBufferLock);
2054        info->mOwnedByClient = true;
2055
2056        // set image-data
2057        if (info->mFormat != NULL) {
2058            sp<ABuffer> imageData;
2059            if (info->mFormat->findBuffer("image-data", &imageData)) {
2060                info->mData->meta()->setBuffer("image-data", imageData);
2061            }
2062            int32_t left, top, right, bottom;
2063            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
2064                info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
2065            }
2066        }
2067    }
2068
2069    return index;
2070}
2071
2072status_t MediaCodec::setNativeWindow(
2073        const sp<Surface> &surfaceTextureClient) {
2074    status_t err;
2075
2076    if (mNativeWindow != NULL) {
2077        err = native_window_api_disconnect(
2078                mNativeWindow.get(), NATIVE_WINDOW_API_MEDIA);
2079
2080        if (err != OK) {
2081            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
2082                    strerror(-err), err);
2083        }
2084
2085        mNativeWindow.clear();
2086    }
2087
2088    if (surfaceTextureClient != NULL) {
2089        err = native_window_api_connect(
2090                surfaceTextureClient.get(), NATIVE_WINDOW_API_MEDIA);
2091
2092        if (err != OK) {
2093            ALOGE("native_window_api_connect returned an error: %s (%d)",
2094                    strerror(-err), err);
2095
2096            return err;
2097        }
2098
2099        mNativeWindow = surfaceTextureClient;
2100    }
2101
2102    return OK;
2103}
2104
2105void MediaCodec::onInputBufferAvailable() {
2106    int32_t index;
2107    while ((index = dequeuePortBuffer(kPortIndexInput)) >= 0) {
2108        sp<AMessage> msg = mCallback->dup();
2109        msg->setInt32("callbackID", CB_INPUT_AVAILABLE);
2110        msg->setInt32("index", index);
2111        msg->post();
2112    }
2113}
2114
2115void MediaCodec::onOutputBufferAvailable() {
2116    int32_t index;
2117    while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
2118        const sp<ABuffer> &buffer =
2119            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
2120        sp<AMessage> msg = mCallback->dup();
2121        msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
2122        msg->setInt32("index", index);
2123        msg->setSize("offset", buffer->offset());
2124        msg->setSize("size", buffer->size());
2125
2126        int64_t timeUs;
2127        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2128
2129        msg->setInt64("timeUs", timeUs);
2130
2131        int32_t omxFlags;
2132        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
2133
2134        uint32_t flags = 0;
2135        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
2136            flags |= BUFFER_FLAG_SYNCFRAME;
2137        }
2138        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
2139            flags |= BUFFER_FLAG_CODECCONFIG;
2140        }
2141        if (omxFlags & OMX_BUFFERFLAG_EOS) {
2142            flags |= BUFFER_FLAG_EOS;
2143        }
2144
2145        msg->setInt32("flags", flags);
2146
2147        msg->post();
2148    }
2149}
2150
2151void MediaCodec::onError(status_t err, int32_t actionCode, const char *detail) {
2152    if (mCallback != NULL) {
2153        sp<AMessage> msg = mCallback->dup();
2154        msg->setInt32("callbackID", CB_ERROR);
2155        msg->setInt32("err", err);
2156        msg->setInt32("actionCode", actionCode);
2157
2158        if (detail != NULL) {
2159            msg->setString("detail", detail);
2160        }
2161
2162        msg->post();
2163    }
2164}
2165
2166void MediaCodec::onOutputFormatChanged() {
2167    if (mCallback != NULL) {
2168        sp<AMessage> msg = mCallback->dup();
2169        msg->setInt32("callbackID", CB_OUTPUT_FORMAT_CHANGED);
2170        msg->setMessage("format", mOutputFormat);
2171        msg->post();
2172    }
2173}
2174
2175
2176void MediaCodec::postActivityNotificationIfPossible() {
2177    if (mActivityNotify == NULL) {
2178        return;
2179    }
2180
2181    bool isErrorOrOutputChanged =
2182            (mFlags & (kFlagStickyError
2183                    | kFlagOutputBuffersChanged
2184                    | kFlagOutputFormatChanged));
2185
2186    if (isErrorOrOutputChanged
2187            || !mAvailPortBuffers[kPortIndexInput].empty()
2188            || !mAvailPortBuffers[kPortIndexOutput].empty()) {
2189        mActivityNotify->setInt32("input-buffers",
2190                mAvailPortBuffers[kPortIndexInput].size());
2191
2192        if (isErrorOrOutputChanged) {
2193            // we want consumer to dequeue as many times as it can
2194            mActivityNotify->setInt32("output-buffers", INT32_MAX);
2195        } else {
2196            mActivityNotify->setInt32("output-buffers",
2197                    mAvailPortBuffers[kPortIndexOutput].size());
2198        }
2199        mActivityNotify->post();
2200        mActivityNotify.clear();
2201    }
2202}
2203
2204status_t MediaCodec::setParameters(const sp<AMessage> &params) {
2205    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
2206    msg->setMessage("params", params);
2207
2208    sp<AMessage> response;
2209    return PostAndAwaitResponse(msg, &response);
2210}
2211
2212status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
2213    mCodec->signalSetParameters(params);
2214
2215    return OK;
2216}
2217
2218status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
2219        const sp<ABuffer> &buffer) {
2220    AString mime;
2221    CHECK(mOutputFormat->findString("mime", &mime));
2222
2223    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_VIDEO_AVC)) {
2224        // Codec specific data should be SPS and PPS in a single buffer,
2225        // each prefixed by a startcode (0x00 0x00 0x00 0x01).
2226        // We separate the two and put them into the output format
2227        // under the keys "csd-0" and "csd-1".
2228
2229        unsigned csdIndex = 0;
2230
2231        const uint8_t *data = buffer->data();
2232        size_t size = buffer->size();
2233
2234        const uint8_t *nalStart;
2235        size_t nalSize;
2236        while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
2237            sp<ABuffer> csd = new ABuffer(nalSize + 4);
2238            memcpy(csd->data(), "\x00\x00\x00\x01", 4);
2239            memcpy(csd->data() + 4, nalStart, nalSize);
2240
2241            mOutputFormat->setBuffer(
2242                    AStringPrintf("csd-%u", csdIndex).c_str(), csd);
2243
2244            ++csdIndex;
2245        }
2246
2247        if (csdIndex != 2) {
2248            return ERROR_MALFORMED;
2249        }
2250    } else {
2251        // For everything else we just stash the codec specific data into
2252        // the output format as a single piece of csd under "csd-0".
2253        mOutputFormat->setBuffer("csd-0", buffer);
2254    }
2255
2256    return OK;
2257}
2258
2259void MediaCodec::updateBatteryStat() {
2260    if (mState == CONFIGURED && !mBatteryStatNotified) {
2261        AString mime;
2262        CHECK(mOutputFormat != NULL &&
2263                mOutputFormat->findString("mime", &mime));
2264
2265        mIsVideo = mime.startsWithIgnoreCase("video/");
2266
2267        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2268
2269        if (mIsVideo) {
2270            notifier.noteStartVideo();
2271        } else {
2272            notifier.noteStartAudio();
2273        }
2274
2275        mBatteryStatNotified = true;
2276    } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
2277        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2278
2279        if (mIsVideo) {
2280            notifier.noteStopVideo();
2281        } else {
2282            notifier.noteStopAudio();
2283        }
2284
2285        mBatteryStatNotified = false;
2286    }
2287}
2288
2289}  // namespace android
2290