MediaCodec.cpp revision d9e0603a1be07dbb347c55050c7d4629ea7492e8 
1/*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "MediaCodec"
19#include <inttypes.h>
20
21#include "include/avc_utils.h"
22#include "include/SoftwareRenderer.h"
23
24#include <binder/IBatteryStats.h>
25#include <binder/IServiceManager.h>
26#include <gui/Surface.h>
27#include <media/ICrypto.h>
28#include <media/stagefright/foundation/ABuffer.h>
29#include <media/stagefright/foundation/ADebug.h>
30#include <media/stagefright/foundation/AMessage.h>
31#include <media/stagefright/foundation/AString.h>
32#include <media/stagefright/foundation/hexdump.h>
33#include <media/stagefright/ACodec.h>
34#include <media/stagefright/BufferProducerWrapper.h>
35#include <media/stagefright/MediaCodec.h>
36#include <media/stagefright/MediaCodecList.h>
37#include <media/stagefright/MediaDefs.h>
38#include <media/stagefright/MediaErrors.h>
39#include <media/stagefright/MetaData.h>
40#include <media/stagefright/NativeWindowWrapper.h>
41#include <private/android_filesystem_config.h>
42#include <utils/Log.h>
43#include <utils/Singleton.h>
44
45namespace android {
46
47struct MediaCodec::BatteryNotifier : public Singleton<BatteryNotifier> {
48    BatteryNotifier();
49
50    void noteStartVideo();
51    void noteStopVideo();
52    void noteStartAudio();
53    void noteStopAudio();
54
55private:
56    int32_t mVideoRefCount;
57    int32_t mAudioRefCount;
58    sp<IBatteryStats> mBatteryStatService;
59};
60
61ANDROID_SINGLETON_STATIC_INSTANCE(MediaCodec::BatteryNotifier)
62
63MediaCodec::BatteryNotifier::BatteryNotifier() :
64    mVideoRefCount(0),
65    mAudioRefCount(0) {
66    // get battery service
67    const sp<IServiceManager> sm(defaultServiceManager());
68    if (sm != NULL) {
69        const String16 name("batterystats");
70        mBatteryStatService = interface_cast<IBatteryStats>(sm->getService(name));
71        if (mBatteryStatService == NULL) {
72            ALOGE("batterystats service unavailable!");
73        }
74    }
75}
76
77void MediaCodec::BatteryNotifier::noteStartVideo() {
78    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
79        mBatteryStatService->noteStartVideo(AID_MEDIA);
80    }
81    mVideoRefCount++;
82}
83
84void MediaCodec::BatteryNotifier::noteStopVideo() {
85    if (mVideoRefCount == 0) {
86        ALOGW("BatteryNotifier::noteStop(): video refcount is broken!");
87        return;
88    }
89
90    mVideoRefCount--;
91    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
92        mBatteryStatService->noteStopVideo(AID_MEDIA);
93    }
94}
95
96void MediaCodec::BatteryNotifier::noteStartAudio() {
97    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
98        mBatteryStatService->noteStartAudio(AID_MEDIA);
99    }
100    mAudioRefCount++;
101}
102
103void MediaCodec::BatteryNotifier::noteStopAudio() {
104    if (mAudioRefCount == 0) {
105        ALOGW("BatteryNotifier::noteStop(): audio refcount is broken!");
106        return;
107    }
108
109    mAudioRefCount--;
110    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
111        mBatteryStatService->noteStopAudio(AID_MEDIA);
112    }
113}
114// static
115sp<MediaCodec> MediaCodec::CreateByType(
116        const sp<ALooper> &looper, const char *mime, bool encoder, status_t *err) {
117    sp<MediaCodec> codec = new MediaCodec(looper);
118
119    const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
120    if (err != NULL) {
121        *err = ret;
122    }
123    return ret == OK ? codec : NULL; // NULL deallocates codec.
124}
125
126// static
127sp<MediaCodec> MediaCodec::CreateByComponentName(
128        const sp<ALooper> &looper, const char *name, status_t *err) {
129    sp<MediaCodec> codec = new MediaCodec(looper);
130
131    const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
132    if (err != NULL) {
133        *err = ret;
134    }
135    return ret == OK ? codec : NULL; // NULL deallocates codec.
136}
137
138MediaCodec::MediaCodec(const sp<ALooper> &looper)
139    : mState(UNINITIALIZED),
140      mLooper(looper),
141      mCodec(NULL),
142      mReplyID(0),
143      mFlags(0),
144      mStickyError(OK),
145      mSoftRenderer(NULL),
146      mBatteryStatNotified(false),
147      mIsVideo(false),
148      mDequeueInputTimeoutGeneration(0),
149      mDequeueInputReplyID(0),
150      mDequeueOutputTimeoutGeneration(0),
151      mDequeueOutputReplyID(0),
152      mHaveInputSurface(false) {
153}
154
155MediaCodec::~MediaCodec() {
156    CHECK_EQ(mState, UNINITIALIZED);
157}
158
159// static
160status_t MediaCodec::PostAndAwaitResponse(
161        const sp<AMessage> &msg, sp<AMessage> *response) {
162    status_t err = msg->postAndAwaitResponse(response);
163
164    if (err != OK) {
165        return err;
166    }
167
168    if (!(*response)->findInt32("err", &err)) {
169        err = OK;
170    }
171
172    return err;
173}
174
175// static
176void MediaCodec::PostReplyWithError(int32_t replyID, int32_t err) {
177    sp<AMessage> response = new AMessage;
178    response->setInt32("err", err);
179    response->postReply(replyID);
180}
181
182status_t MediaCodec::init(const AString &name, bool nameIsType, bool encoder) {
183    // save init parameters for reset
184    mInitName = name;
185    mInitNameIsType = nameIsType;
186    mInitIsEncoder = encoder;
187
188    // Current video decoders do not return from OMX_FillThisBuffer
189    // quickly, violating the OpenMAX specs, until that is remedied
190    // we need to invest in an extra looper to free the main event
191    // queue.
192    mCodec = new ACodec;
193    bool needDedicatedLooper = false;
194    if (nameIsType && !strncasecmp(name.c_str(), "video/", 6)) {
195        needDedicatedLooper = true;
196    } else {
197        AString tmp = name;
198        if (tmp.endsWith(".secure")) {
199            tmp.erase(tmp.size() - 7, 7);
200        }
201        const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
202        ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
203        if (codecIdx >= 0) {
204            const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
205            Vector<AString> mimes;
206            info->getSupportedMimes(&mimes);
207            for (size_t i = 0; i < mimes.size(); i++) {
208                if (mimes[i].startsWith("video/")) {
209                    needDedicatedLooper = true;
210                    break;
211                }
212            }
213        }
214    }
215
216    if (needDedicatedLooper) {
217        if (mCodecLooper == NULL) {
218            mCodecLooper = new ALooper;
219            mCodecLooper->setName("CodecLooper");
220            mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
221        }
222
223        mCodecLooper->registerHandler(mCodec);
224    } else {
225        mLooper->registerHandler(mCodec);
226    }
227
228    mLooper->registerHandler(this);
229
230    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, id()));
231
232    sp<AMessage> msg = new AMessage(kWhatInit, id());
233    msg->setString("name", name);
234    msg->setInt32("nameIsType", nameIsType);
235
236    if (nameIsType) {
237        msg->setInt32("encoder", encoder);
238    }
239
240    sp<AMessage> response;
241    return PostAndAwaitResponse(msg, &response);
242}
243
244status_t MediaCodec::setCallback(const sp<AMessage> &callback) {
245    sp<AMessage> msg = new AMessage(kWhatSetCallback, id());
246    msg->setMessage("callback", callback);
247
248    sp<AMessage> response;
249    return PostAndAwaitResponse(msg, &response);
250}
251
252status_t MediaCodec::configure(
253        const sp<AMessage> &format,
254        const sp<Surface> &nativeWindow,
255        const sp<ICrypto> &crypto,
256        uint32_t flags) {
257    sp<AMessage> msg = new AMessage(kWhatConfigure, id());
258
259    msg->setMessage("format", format);
260    msg->setInt32("flags", flags);
261
262    if (nativeWindow != NULL) {
263        msg->setObject(
264                "native-window",
265                new NativeWindowWrapper(nativeWindow));
266    }
267
268    if (crypto != NULL) {
269        msg->setPointer("crypto", crypto.get());
270    }
271
272    sp<AMessage> response;
273    status_t err = PostAndAwaitResponse(msg, &response);
274
275    if (err != OK && err != INVALID_OPERATION) {
276        // MediaCodec now set state to UNINITIALIZED upon any fatal error.
277        // To maintain backward-compatibility, do a reset() to put codec
278        // back into INITIALIZED state.
279        // But don't reset if the err is INVALID_OPERATION, which means
280        // the configure failure is due to wrong state.
281
282        ALOGE("configure failed with err 0x%08x, resetting...", err);
283        reset();
284    }
285
286    return err;
287}
288
289status_t MediaCodec::createInputSurface(
290        sp<IGraphicBufferProducer>* bufferProducer) {
291    sp<AMessage> msg = new AMessage(kWhatCreateInputSurface, id());
292
293    sp<AMessage> response;
294    status_t err = PostAndAwaitResponse(msg, &response);
295    if (err == NO_ERROR) {
296        // unwrap the sp<IGraphicBufferProducer>
297        sp<RefBase> obj;
298        bool found = response->findObject("input-surface", &obj);
299        CHECK(found);
300        sp<BufferProducerWrapper> wrapper(
301                static_cast<BufferProducerWrapper*>(obj.get()));
302        *bufferProducer = wrapper->getBufferProducer();
303    } else {
304        ALOGW("createInputSurface failed, err=%d", err);
305    }
306    return err;
307}
308
309status_t MediaCodec::start() {
310    sp<AMessage> msg = new AMessage(kWhatStart, id());
311
312    sp<AMessage> response;
313    return PostAndAwaitResponse(msg, &response);
314}
315
316status_t MediaCodec::stop() {
317    sp<AMessage> msg = new AMessage(kWhatStop, id());
318
319    sp<AMessage> response;
320    return PostAndAwaitResponse(msg, &response);
321}
322
323status_t MediaCodec::release() {
324    sp<AMessage> msg = new AMessage(kWhatRelease, id());
325
326    sp<AMessage> response;
327    return PostAndAwaitResponse(msg, &response);
328}
329
330status_t MediaCodec::reset() {
331    /* When external-facing MediaCodec object is created,
332       it is already initialized.  Thus, reset is essentially
333       release() followed by init(), plus clearing the state */
334
335    status_t err = release();
336
337    // unregister handlers
338    if (mCodec != NULL) {
339        if (mCodecLooper != NULL) {
340            mCodecLooper->unregisterHandler(mCodec->id());
341        } else {
342            mLooper->unregisterHandler(mCodec->id());
343        }
344        mCodec = NULL;
345    }
346    mLooper->unregisterHandler(id());
347
348    mFlags = 0;    // clear all flags
349    mStickyError = OK;
350
351    // reset state not reset by setState(UNINITIALIZED)
352    mReplyID = 0;
353    mDequeueInputReplyID = 0;
354    mDequeueOutputReplyID = 0;
355    mDequeueInputTimeoutGeneration = 0;
356    mDequeueOutputTimeoutGeneration = 0;
357    mHaveInputSurface = false;
358
359    if (err == OK) {
360        err = init(mInitName, mInitNameIsType, mInitIsEncoder);
361    }
362    return err;
363}
364
365status_t MediaCodec::queueInputBuffer(
366        size_t index,
367        size_t offset,
368        size_t size,
369        int64_t presentationTimeUs,
370        uint32_t flags,
371        AString *errorDetailMsg) {
372    if (errorDetailMsg != NULL) {
373        errorDetailMsg->clear();
374    }
375
376    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
377    msg->setSize("index", index);
378    msg->setSize("offset", offset);
379    msg->setSize("size", size);
380    msg->setInt64("timeUs", presentationTimeUs);
381    msg->setInt32("flags", flags);
382    msg->setPointer("errorDetailMsg", errorDetailMsg);
383
384    sp<AMessage> response;
385    return PostAndAwaitResponse(msg, &response);
386}
387
388status_t MediaCodec::queueSecureInputBuffer(
389        size_t index,
390        size_t offset,
391        const CryptoPlugin::SubSample *subSamples,
392        size_t numSubSamples,
393        const uint8_t key[16],
394        const uint8_t iv[16],
395        CryptoPlugin::Mode mode,
396        int64_t presentationTimeUs,
397        uint32_t flags,
398        AString *errorDetailMsg) {
399    if (errorDetailMsg != NULL) {
400        errorDetailMsg->clear();
401    }
402
403    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
404    msg->setSize("index", index);
405    msg->setSize("offset", offset);
406    msg->setPointer("subSamples", (void *)subSamples);
407    msg->setSize("numSubSamples", numSubSamples);
408    msg->setPointer("key", (void *)key);
409    msg->setPointer("iv", (void *)iv);
410    msg->setInt32("mode", mode);
411    msg->setInt64("timeUs", presentationTimeUs);
412    msg->setInt32("flags", flags);
413    msg->setPointer("errorDetailMsg", errorDetailMsg);
414
415    sp<AMessage> response;
416    status_t err = PostAndAwaitResponse(msg, &response);
417
418    return err;
419}
420
421status_t MediaCodec::dequeueInputBuffer(size_t *index, int64_t timeoutUs) {
422    sp<AMessage> msg = new AMessage(kWhatDequeueInputBuffer, id());
423    msg->setInt64("timeoutUs", timeoutUs);
424
425    sp<AMessage> response;
426    status_t err;
427    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
428        return err;
429    }
430
431    CHECK(response->findSize("index", index));
432
433    return OK;
434}
435
436status_t MediaCodec::dequeueOutputBuffer(
437        size_t *index,
438        size_t *offset,
439        size_t *size,
440        int64_t *presentationTimeUs,
441        uint32_t *flags,
442        int64_t timeoutUs) {
443    sp<AMessage> msg = new AMessage(kWhatDequeueOutputBuffer, id());
444    msg->setInt64("timeoutUs", timeoutUs);
445
446    sp<AMessage> response;
447    status_t err;
448    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
449        return err;
450    }
451
452    CHECK(response->findSize("index", index));
453    CHECK(response->findSize("offset", offset));
454    CHECK(response->findSize("size", size));
455    CHECK(response->findInt64("timeUs", presentationTimeUs));
456    CHECK(response->findInt32("flags", (int32_t *)flags));
457
458    return OK;
459}
460
461status_t MediaCodec::renderOutputBufferAndRelease(size_t index) {
462    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
463    msg->setSize("index", index);
464    msg->setInt32("render", true);
465
466    sp<AMessage> response;
467    return PostAndAwaitResponse(msg, &response);
468}
469
470status_t MediaCodec::renderOutputBufferAndRelease(size_t index, int64_t timestampNs) {
471    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
472    msg->setSize("index", index);
473    msg->setInt32("render", true);
474    msg->setInt64("timestampNs", timestampNs);
475
476    sp<AMessage> response;
477    return PostAndAwaitResponse(msg, &response);
478}
479
480status_t MediaCodec::releaseOutputBuffer(size_t index) {
481    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
482    msg->setSize("index", index);
483
484    sp<AMessage> response;
485    return PostAndAwaitResponse(msg, &response);
486}
487
488status_t MediaCodec::signalEndOfInputStream() {
489    sp<AMessage> msg = new AMessage(kWhatSignalEndOfInputStream, id());
490
491    sp<AMessage> response;
492    return PostAndAwaitResponse(msg, &response);
493}
494
495status_t MediaCodec::getOutputFormat(sp<AMessage> *format) const {
496    sp<AMessage> msg = new AMessage(kWhatGetOutputFormat, id());
497
498    sp<AMessage> response;
499    status_t err;
500    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
501        return err;
502    }
503
504    CHECK(response->findMessage("format", format));
505
506    return OK;
507}
508
509status_t MediaCodec::getInputFormat(sp<AMessage> *format) const {
510    sp<AMessage> msg = new AMessage(kWhatGetInputFormat, id());
511
512    sp<AMessage> response;
513    status_t err;
514    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
515        return err;
516    }
517
518    CHECK(response->findMessage("format", format));
519
520    return OK;
521}
522
523status_t MediaCodec::getName(AString *name) const {
524    sp<AMessage> msg = new AMessage(kWhatGetName, id());
525
526    sp<AMessage> response;
527    status_t err;
528    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
529        return err;
530    }
531
532    CHECK(response->findString("name", name));
533
534    return OK;
535}
536
537status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
538    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
539    msg->setInt32("portIndex", kPortIndexInput);
540    msg->setPointer("buffers", buffers);
541
542    sp<AMessage> response;
543    return PostAndAwaitResponse(msg, &response);
544}
545
546status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
547    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
548    msg->setInt32("portIndex", kPortIndexOutput);
549    msg->setPointer("buffers", buffers);
550
551    sp<AMessage> response;
552    return PostAndAwaitResponse(msg, &response);
553}
554
555status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
556    sp<AMessage> format;
557    return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
558}
559
560status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
561    sp<ABuffer> buffer;
562    return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
563}
564
565status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
566    sp<AMessage> format;
567    return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
568}
569
570bool MediaCodec::isExecuting() const {
571    return mState == STARTED || mState == FLUSHED;
572}
573
574status_t MediaCodec::getBufferAndFormat(
575        size_t portIndex, size_t index,
576        sp<ABuffer> *buffer, sp<AMessage> *format) {
577    // use mutex instead of a context switch
578
579    buffer->clear();
580    format->clear();
581    if (!isExecuting()) {
582        return INVALID_OPERATION;
583    }
584
585    // we do not want mPortBuffers to change during this section
586    // we also don't want mOwnedByClient to change during this
587    Mutex::Autolock al(mBufferLock);
588    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
589    if (index < buffers->size()) {
590        const BufferInfo &info = buffers->itemAt(index);
591        if (info.mOwnedByClient) {
592            // by the time buffers array is initialized, crypto is set
593            if (portIndex == kPortIndexInput && mCrypto != NULL) {
594                *buffer = info.mEncryptedData;
595            } else {
596                *buffer = info.mData;
597            }
598            *format = info.mFormat;
599        }
600    }
601    return OK;
602}
603
604status_t MediaCodec::flush() {
605    sp<AMessage> msg = new AMessage(kWhatFlush, id());
606
607    sp<AMessage> response;
608    return PostAndAwaitResponse(msg, &response);
609}
610
611status_t MediaCodec::requestIDRFrame() {
612    (new AMessage(kWhatRequestIDRFrame, id()))->post();
613
614    return OK;
615}
616
617void MediaCodec::requestActivityNotification(const sp<AMessage> &notify) {
618    sp<AMessage> msg = new AMessage(kWhatRequestActivityNotification, id());
619    msg->setMessage("notify", notify);
620    msg->post();
621}
622
623////////////////////////////////////////////////////////////////////////////////
624
625void MediaCodec::cancelPendingDequeueOperations() {
626    if (mFlags & kFlagDequeueInputPending) {
627        PostReplyWithError(mDequeueInputReplyID, INVALID_OPERATION);
628
629        ++mDequeueInputTimeoutGeneration;
630        mDequeueInputReplyID = 0;
631        mFlags &= ~kFlagDequeueInputPending;
632    }
633
634    if (mFlags & kFlagDequeueOutputPending) {
635        PostReplyWithError(mDequeueOutputReplyID, INVALID_OPERATION);
636
637        ++mDequeueOutputTimeoutGeneration;
638        mDequeueOutputReplyID = 0;
639        mFlags &= ~kFlagDequeueOutputPending;
640    }
641}
642
643bool MediaCodec::handleDequeueInputBuffer(uint32_t replyID, bool newRequest) {
644    if (!isExecuting() || (mFlags & kFlagIsAsync)
645            || (newRequest && (mFlags & kFlagDequeueInputPending))) {
646        PostReplyWithError(replyID, INVALID_OPERATION);
647        return true;
648    } else if (mFlags & kFlagStickyError) {
649        PostReplyWithError(replyID, getStickyError());
650        return true;
651    }
652
653    ssize_t index = dequeuePortBuffer(kPortIndexInput);
654
655    if (index < 0) {
656        CHECK_EQ(index, -EAGAIN);
657        return false;
658    }
659
660    sp<AMessage> response = new AMessage;
661    response->setSize("index", index);
662    response->postReply(replyID);
663
664    return true;
665}
666
667bool MediaCodec::handleDequeueOutputBuffer(uint32_t replyID, bool newRequest) {
668    sp<AMessage> response = new AMessage;
669
670    if (!isExecuting() || (mFlags & kFlagIsAsync)
671            || (newRequest && (mFlags & kFlagDequeueOutputPending))) {
672        response->setInt32("err", INVALID_OPERATION);
673    } else if (mFlags & kFlagStickyError) {
674        response->setInt32("err", getStickyError());
675    } else if (mFlags & kFlagOutputBuffersChanged) {
676        response->setInt32("err", INFO_OUTPUT_BUFFERS_CHANGED);
677        mFlags &= ~kFlagOutputBuffersChanged;
678    } else if (mFlags & kFlagOutputFormatChanged) {
679        response->setInt32("err", INFO_FORMAT_CHANGED);
680        mFlags &= ~kFlagOutputFormatChanged;
681    } else {
682        ssize_t index = dequeuePortBuffer(kPortIndexOutput);
683
684        if (index < 0) {
685            CHECK_EQ(index, -EAGAIN);
686            return false;
687        }
688
689        const sp<ABuffer> &buffer =
690            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
691
692        response->setSize("index", index);
693        response->setSize("offset", buffer->offset());
694        response->setSize("size", buffer->size());
695
696        int64_t timeUs;
697        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
698
699        response->setInt64("timeUs", timeUs);
700
701        int32_t omxFlags;
702        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
703
704        uint32_t flags = 0;
705        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
706            flags |= BUFFER_FLAG_SYNCFRAME;
707        }
708        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
709            flags |= BUFFER_FLAG_CODECCONFIG;
710        }
711        if (omxFlags & OMX_BUFFERFLAG_EOS) {
712            flags |= BUFFER_FLAG_EOS;
713        }
714
715        response->setInt32("flags", flags);
716    }
717
718    response->postReply(replyID);
719
720    return true;
721}
722
723void MediaCodec::onMessageReceived(const sp<AMessage> &msg) {
724    switch (msg->what()) {
725        case kWhatCodecNotify:
726        {
727            int32_t what;
728            CHECK(msg->findInt32("what", &what));
729
730            switch (what) {
731                case CodecBase::kWhatError:
732                {
733                    int32_t err, actionCode;
734                    CHECK(msg->findInt32("err", &err));
735                    CHECK(msg->findInt32("actionCode", &actionCode));
736
737                    ALOGE("Codec reported err %#x, actionCode %d, while in state %d",
738                            err, actionCode, mState);
739                    if (err == DEAD_OBJECT) {
740                        mFlags |= kFlagSawMediaServerDie;
741                        mFlags &= ~kFlagIsComponentAllocated;
742                    }
743
744                    bool sendErrorResponse = true;
745
746                    switch (mState) {
747                        case INITIALIZING:
748                        {
749                            setState(UNINITIALIZED);
750                            break;
751                        }
752
753                        case CONFIGURING:
754                        {
755                            setState(actionCode == ACTION_CODE_FATAL ?
756                                    UNINITIALIZED : INITIALIZED);
757                            break;
758                        }
759
760                        case STARTING:
761                        {
762                            setState(actionCode == ACTION_CODE_FATAL ?
763                                    UNINITIALIZED : CONFIGURED);
764                            break;
765                        }
766
767                        case STOPPING:
768                        case RELEASING:
769                        {
770                            // Ignore the error, assuming we'll still get
771                            // the shutdown complete notification.
772
773                            sendErrorResponse = false;
774
775                            if (mFlags & kFlagSawMediaServerDie) {
776                                // MediaServer died, there definitely won't
777                                // be a shutdown complete notification after
778                                // all.
779
780                                // note that we're directly going from
781                                // STOPPING->UNINITIALIZED, instead of the
782                                // usual STOPPING->INITIALIZED state.
783                                setState(UNINITIALIZED);
784                                if (mState == RELEASING) {
785                                    mComponentName.clear();
786                                }
787                                (new AMessage)->postReply(mReplyID);
788                            }
789                            break;
790                        }
791
792                        case FLUSHING:
793                        {
794                            if (actionCode == ACTION_CODE_FATAL) {
795                                setState(UNINITIALIZED);
796                            } else {
797                                setState(
798                                        (mFlags & kFlagIsAsync) ? FLUSHED : STARTED);
799                            }
800                            break;
801                        }
802
803                        case FLUSHED:
804                        case STARTED:
805                        {
806                            sendErrorResponse = false;
807
808                            setStickyError(err);
809                            postActivityNotificationIfPossible();
810
811                            cancelPendingDequeueOperations();
812
813                            if (mFlags & kFlagIsAsync) {
814                                onError(err, actionCode);
815                            }
816                            switch (actionCode) {
817                            case ACTION_CODE_TRANSIENT:
818                                break;
819                            case ACTION_CODE_RECOVERABLE:
820                                setState(INITIALIZED);
821                                break;
822                            default:
823                                setState(UNINITIALIZED);
824                                break;
825                            }
826                            break;
827                        }
828
829                        default:
830                        {
831                            sendErrorResponse = false;
832
833                            setStickyError(err);
834                            postActivityNotificationIfPossible();
835
836                            // actionCode in an uninitialized state is always fatal.
837                            if (mState == UNINITIALIZED) {
838                                actionCode = ACTION_CODE_FATAL;
839                            }
840                            if (mFlags & kFlagIsAsync) {
841                                onError(err, actionCode);
842                            }
843                            switch (actionCode) {
844                            case ACTION_CODE_TRANSIENT:
845                                break;
846                            case ACTION_CODE_RECOVERABLE:
847                                setState(INITIALIZED);
848                                break;
849                            default:
850                                setState(UNINITIALIZED);
851                                break;
852                            }
853                            break;
854                        }
855                    }
856
857                    if (sendErrorResponse) {
858                        PostReplyWithError(mReplyID, err);
859                    }
860                    break;
861                }
862
863                case CodecBase::kWhatComponentAllocated:
864                {
865                    CHECK_EQ(mState, INITIALIZING);
866                    setState(INITIALIZED);
867                    mFlags |= kFlagIsComponentAllocated;
868
869                    CHECK(msg->findString("componentName", &mComponentName));
870
871                    if (mComponentName.startsWith("OMX.google.")) {
872                        mFlags |= kFlagIsSoftwareCodec;
873                    } else {
874                        mFlags &= ~kFlagIsSoftwareCodec;
875                    }
876
877                    if (mComponentName.endsWith(".secure")) {
878                        mFlags |= kFlagIsSecure;
879                    } else {
880                        mFlags &= ~kFlagIsSecure;
881                    }
882
883                    (new AMessage)->postReply(mReplyID);
884                    break;
885                }
886
887                case CodecBase::kWhatComponentConfigured:
888                {
889                    CHECK_EQ(mState, CONFIGURING);
890
891                    // reset input surface flag
892                    mHaveInputSurface = false;
893
894                    CHECK(msg->findMessage("input-format", &mInputFormat));
895                    CHECK(msg->findMessage("output-format", &mOutputFormat));
896
897                    setState(CONFIGURED);
898                    (new AMessage)->postReply(mReplyID);
899                    break;
900                }
901
902                case CodecBase::kWhatInputSurfaceCreated:
903                {
904                    // response to initiateCreateInputSurface()
905                    status_t err = NO_ERROR;
906                    sp<AMessage> response = new AMessage();
907                    if (!msg->findInt32("err", &err)) {
908                        sp<RefBase> obj;
909                        msg->findObject("input-surface", &obj);
910                        CHECK(obj != NULL);
911                        response->setObject("input-surface", obj);
912                        mHaveInputSurface = true;
913                    } else {
914                        response->setInt32("err", err);
915                    }
916                    response->postReply(mReplyID);
917                    break;
918                }
919
920                case CodecBase::kWhatSignaledInputEOS:
921                {
922                    // response to signalEndOfInputStream()
923                    sp<AMessage> response = new AMessage();
924                    status_t err;
925                    if (msg->findInt32("err", &err)) {
926                        response->setInt32("err", err);
927                    }
928                    response->postReply(mReplyID);
929                    break;
930                }
931
932
933                case CodecBase::kWhatBuffersAllocated:
934                {
935                    Mutex::Autolock al(mBufferLock);
936                    int32_t portIndex;
937                    CHECK(msg->findInt32("portIndex", &portIndex));
938
939                    ALOGV("%s buffers allocated",
940                          portIndex == kPortIndexInput ? "input" : "output");
941
942                    CHECK(portIndex == kPortIndexInput
943                            || portIndex == kPortIndexOutput);
944
945                    mPortBuffers[portIndex].clear();
946
947                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
948
949                    sp<RefBase> obj;
950                    CHECK(msg->findObject("portDesc", &obj));
951
952                    sp<CodecBase::PortDescription> portDesc =
953                        static_cast<CodecBase::PortDescription *>(obj.get());
954
955                    size_t numBuffers = portDesc->countBuffers();
956
957                    for (size_t i = 0; i < numBuffers; ++i) {
958                        BufferInfo info;
959                        info.mBufferID = portDesc->bufferIDAt(i);
960                        info.mOwnedByClient = false;
961                        info.mData = portDesc->bufferAt(i);
962
963                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
964                            info.mEncryptedData =
965                                new ABuffer(info.mData->capacity());
966                        }
967
968                        buffers->push_back(info);
969                    }
970
971                    if (portIndex == kPortIndexOutput) {
972                        if (mState == STARTING) {
973                            // We're always allocating output buffers after
974                            // allocating input buffers, so this is a good
975                            // indication that now all buffers are allocated.
976                            setState(STARTED);
977                            (new AMessage)->postReply(mReplyID);
978                        } else {
979                            mFlags |= kFlagOutputBuffersChanged;
980                            postActivityNotificationIfPossible();
981                        }
982                    }
983                    break;
984                }
985
986                case CodecBase::kWhatOutputFormatChanged:
987                {
988                    ALOGV("codec output format changed");
989
990                    if (mSoftRenderer == NULL &&
991                            mNativeWindow != NULL &&
992                            (mFlags & kFlagIsSoftwareCodec)) {
993                        AString mime;
994                        CHECK(msg->findString("mime", &mime));
995
996                        if (mime.startsWithIgnoreCase("video/")) {
997                            mSoftRenderer = new SoftwareRenderer(mNativeWindow);
998                        }
999                    }
1000
1001                    mOutputFormat = msg;
1002
1003                    if (mFlags & kFlagIsEncoder) {
1004                        // Before we announce the format change we should
1005                        // collect codec specific data and amend the output
1006                        // format as necessary.
1007                        mFlags |= kFlagGatherCodecSpecificData;
1008                    } else if (mFlags & kFlagIsAsync) {
1009                        onOutputFormatChanged();
1010                    } else {
1011                        mFlags |= kFlagOutputFormatChanged;
1012                        postActivityNotificationIfPossible();
1013                    }
1014
1015                    // Notify mCrypto of video resolution changes
1016                    if (mCrypto != NULL) {
1017                      int32_t height, width;
1018                      if (mOutputFormat->findInt32("height", &height) &&
1019                          mOutputFormat->findInt32("width", &width)) {
1020                        mCrypto->notifyResolution(width, height);
1021                      }
1022                    }
1023
1024                    break;
1025                }
1026
1027                case CodecBase::kWhatFillThisBuffer:
1028                {
1029                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1030
1031                    if (mState == FLUSHING
1032                            || mState == STOPPING
1033                            || mState == RELEASING) {
1034                        returnBuffersToCodecOnPort(kPortIndexInput);
1035                        break;
1036                    }
1037
1038                    if (!mCSD.empty()) {
1039                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1040                        CHECK_GE(index, 0);
1041
1042                        // If codec specific data had been specified as
1043                        // part of the format in the call to configure and
1044                        // if there's more csd left, we submit it here
1045                        // clients only get access to input buffers once
1046                        // this data has been exhausted.
1047
1048                        status_t err = queueCSDInputBuffer(index);
1049
1050                        if (err != OK) {
1051                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1052                                  err);
1053
1054                            setStickyError(err);
1055                            postActivityNotificationIfPossible();
1056
1057                            cancelPendingDequeueOperations();
1058                        }
1059                        break;
1060                    }
1061
1062                    if (mFlags & kFlagIsAsync) {
1063                        if (!mHaveInputSurface) {
1064                            onInputBufferAvailable();
1065                        }
1066                    } else if (mFlags & kFlagDequeueInputPending) {
1067                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1068
1069                        ++mDequeueInputTimeoutGeneration;
1070                        mFlags &= ~kFlagDequeueInputPending;
1071                        mDequeueInputReplyID = 0;
1072                    } else {
1073                        postActivityNotificationIfPossible();
1074                    }
1075                    break;
1076                }
1077
1078                case CodecBase::kWhatDrainThisBuffer:
1079                {
1080                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1081
1082                    if (mState == FLUSHING
1083                            || mState == STOPPING
1084                            || mState == RELEASING) {
1085                        returnBuffersToCodecOnPort(kPortIndexOutput);
1086                        break;
1087                    }
1088
1089                    sp<ABuffer> buffer;
1090                    CHECK(msg->findBuffer("buffer", &buffer));
1091
1092                    int32_t omxFlags;
1093                    CHECK(msg->findInt32("flags", &omxFlags));
1094
1095                    buffer->meta()->setInt32("omxFlags", omxFlags);
1096
1097                    if (mFlags & kFlagGatherCodecSpecificData) {
1098                        // This is the very first output buffer after a
1099                        // format change was signalled, it'll either contain
1100                        // the one piece of codec specific data we can expect
1101                        // or there won't be codec specific data.
1102                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1103                            status_t err =
1104                                amendOutputFormatWithCodecSpecificData(buffer);
1105
1106                            if (err != OK) {
1107                                ALOGE("Codec spit out malformed codec "
1108                                      "specific data!");
1109                            }
1110                        }
1111
1112                        mFlags &= ~kFlagGatherCodecSpecificData;
1113                        if (mFlags & kFlagIsAsync) {
1114                            onOutputFormatChanged();
1115                        } else {
1116                            mFlags |= kFlagOutputFormatChanged;
1117                        }
1118                    }
1119
1120                    if (mFlags & kFlagIsAsync) {
1121                        onOutputBufferAvailable();
1122                    } else if (mFlags & kFlagDequeueOutputPending) {
1123                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1124
1125                        ++mDequeueOutputTimeoutGeneration;
1126                        mFlags &= ~kFlagDequeueOutputPending;
1127                        mDequeueOutputReplyID = 0;
1128                    } else {
1129                        postActivityNotificationIfPossible();
1130                    }
1131
1132                    break;
1133                }
1134
1135                case CodecBase::kWhatEOS:
1136                {
1137                    // We already notify the client of this by using the
1138                    // corresponding flag in "onOutputBufferReady".
1139                    break;
1140                }
1141
1142                case CodecBase::kWhatShutdownCompleted:
1143                {
1144                    if (mState == STOPPING) {
1145                        setState(INITIALIZED);
1146                    } else {
1147                        CHECK_EQ(mState, RELEASING);
1148                        setState(UNINITIALIZED);
1149                        mComponentName.clear();
1150                    }
1151                    mFlags &= ~kFlagIsComponentAllocated;
1152
1153                    (new AMessage)->postReply(mReplyID);
1154                    break;
1155                }
1156
1157                case CodecBase::kWhatFlushCompleted:
1158                {
1159                    if (mState != FLUSHING) {
1160                        ALOGW("received FlushCompleted message in state %d",
1161                                mState);
1162                        break;
1163                    }
1164
1165                    if (mFlags & kFlagIsAsync) {
1166                        setState(FLUSHED);
1167                    } else {
1168                        setState(STARTED);
1169                        mCodec->signalResume();
1170                    }
1171
1172                    (new AMessage)->postReply(mReplyID);
1173                    break;
1174                }
1175
1176                default:
1177                    TRESPASS();
1178            }
1179            break;
1180        }
1181
1182        case kWhatInit:
1183        {
1184            uint32_t replyID;
1185            CHECK(msg->senderAwaitsResponse(&replyID));
1186
1187            if (mState != UNINITIALIZED) {
1188                PostReplyWithError(replyID, INVALID_OPERATION);
1189                break;
1190            }
1191
1192            mReplyID = replyID;
1193            setState(INITIALIZING);
1194
1195            AString name;
1196            CHECK(msg->findString("name", &name));
1197
1198            int32_t nameIsType;
1199            int32_t encoder = false;
1200            CHECK(msg->findInt32("nameIsType", &nameIsType));
1201            if (nameIsType) {
1202                CHECK(msg->findInt32("encoder", &encoder));
1203            }
1204
1205            sp<AMessage> format = new AMessage;
1206
1207            if (nameIsType) {
1208                format->setString("mime", name.c_str());
1209                format->setInt32("encoder", encoder);
1210            } else {
1211                format->setString("componentName", name.c_str());
1212            }
1213
1214            mCodec->initiateAllocateComponent(format);
1215            break;
1216        }
1217
1218        case kWhatSetCallback:
1219        {
1220            uint32_t replyID;
1221            CHECK(msg->senderAwaitsResponse(&replyID));
1222
1223            if (mState == UNINITIALIZED
1224                    || mState == INITIALIZING
1225                    || isExecuting()) {
1226                // callback can't be set after codec is executing,
1227                // or before it's initialized (as the callback
1228                // will be cleared when it goes to INITIALIZED)
1229                PostReplyWithError(replyID, INVALID_OPERATION);
1230                break;
1231            }
1232
1233            sp<AMessage> callback;
1234            CHECK(msg->findMessage("callback", &callback));
1235
1236            mCallback = callback;
1237
1238            if (mCallback != NULL) {
1239                ALOGI("MediaCodec will operate in async mode");
1240                mFlags |= kFlagIsAsync;
1241            } else {
1242                mFlags &= ~kFlagIsAsync;
1243            }
1244
1245            sp<AMessage> response = new AMessage;
1246            response->postReply(replyID);
1247            break;
1248        }
1249
1250        case kWhatConfigure:
1251        {
1252            uint32_t replyID;
1253            CHECK(msg->senderAwaitsResponse(&replyID));
1254
1255            if (mState != INITIALIZED) {
1256                PostReplyWithError(replyID, INVALID_OPERATION);
1257                break;
1258            }
1259
1260            sp<RefBase> obj;
1261            if (!msg->findObject("native-window", &obj)) {
1262                obj.clear();
1263            }
1264
1265            sp<AMessage> format;
1266            CHECK(msg->findMessage("format", &format));
1267
1268            if (obj != NULL) {
1269                format->setObject("native-window", obj);
1270
1271                status_t err = setNativeWindow(
1272                    static_cast<NativeWindowWrapper *>(obj.get())
1273                        ->getSurfaceTextureClient());
1274
1275                if (err != OK) {
1276                    PostReplyWithError(replyID, err);
1277                    break;
1278                }
1279            } else {
1280                setNativeWindow(NULL);
1281            }
1282
1283            mReplyID = replyID;
1284            setState(CONFIGURING);
1285
1286            void *crypto;
1287            if (!msg->findPointer("crypto", &crypto)) {
1288                crypto = NULL;
1289            }
1290
1291            mCrypto = static_cast<ICrypto *>(crypto);
1292
1293            uint32_t flags;
1294            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1295
1296            if (flags & CONFIGURE_FLAG_ENCODE) {
1297                format->setInt32("encoder", true);
1298                mFlags |= kFlagIsEncoder;
1299            }
1300
1301            extractCSD(format);
1302
1303            mCodec->initiateConfigureComponent(format);
1304            break;
1305        }
1306
1307        case kWhatCreateInputSurface:
1308        {
1309            uint32_t replyID;
1310            CHECK(msg->senderAwaitsResponse(&replyID));
1311
1312            // Must be configured, but can't have been started yet.
1313            if (mState != CONFIGURED) {
1314                PostReplyWithError(replyID, INVALID_OPERATION);
1315                break;
1316            }
1317
1318            mReplyID = replyID;
1319            mCodec->initiateCreateInputSurface();
1320            break;
1321        }
1322
1323        case kWhatStart:
1324        {
1325            uint32_t replyID;
1326            CHECK(msg->senderAwaitsResponse(&replyID));
1327
1328            if (mState == FLUSHED) {
1329                setState(STARTED);
1330                mCodec->signalResume();
1331                PostReplyWithError(replyID, OK);
1332                break;
1333            } else if (mState != CONFIGURED) {
1334                PostReplyWithError(replyID, INVALID_OPERATION);
1335                break;
1336            }
1337
1338            mReplyID = replyID;
1339            setState(STARTING);
1340
1341            mCodec->initiateStart();
1342            break;
1343        }
1344
1345        case kWhatStop:
1346        case kWhatRelease:
1347        {
1348            State targetState =
1349                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1350
1351            uint32_t replyID;
1352            CHECK(msg->senderAwaitsResponse(&replyID));
1353
1354            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
1355                    && mState != INITIALIZED
1356                    && mState != CONFIGURED && !isExecuting()) {
1357                // 1) Permit release to shut down the component if allocated.
1358                //
1359                // 2) We may be in "UNINITIALIZED" state already and
1360                // also shutdown the encoder/decoder without the
1361                // client being aware of this if media server died while
1362                // we were being stopped. The client would assume that
1363                // after stop() returned, it would be safe to call release()
1364                // and it should be in this case, no harm to allow a release()
1365                // if we're already uninitialized.
1366                sp<AMessage> response = new AMessage;
1367                status_t err = mState == targetState ? OK : INVALID_OPERATION;
1368                response->setInt32("err", err);
1369                if (err == OK && targetState == UNINITIALIZED) {
1370                    mComponentName.clear();
1371                }
1372                response->postReply(replyID);
1373                break;
1374            }
1375
1376            if (mFlags & kFlagSawMediaServerDie) {
1377                // It's dead, Jim. Don't expect initiateShutdown to yield
1378                // any useful results now...
1379                setState(UNINITIALIZED);
1380                if (targetState == UNINITIALIZED) {
1381                    mComponentName.clear();
1382                }
1383                (new AMessage)->postReply(replyID);
1384                break;
1385            }
1386
1387            mReplyID = replyID;
1388            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1389
1390            mCodec->initiateShutdown(
1391                    msg->what() == kWhatStop /* keepComponentAllocated */);
1392
1393            returnBuffersToCodec();
1394            break;
1395        }
1396
1397        case kWhatDequeueInputBuffer:
1398        {
1399            uint32_t replyID;
1400            CHECK(msg->senderAwaitsResponse(&replyID));
1401
1402            if (mFlags & kFlagIsAsync) {
1403                ALOGE("dequeueOutputBuffer can't be used in async mode");
1404                PostReplyWithError(replyID, INVALID_OPERATION);
1405                break;
1406            }
1407
1408            if (mHaveInputSurface) {
1409                ALOGE("dequeueInputBuffer can't be used with input surface");
1410                PostReplyWithError(replyID, INVALID_OPERATION);
1411                break;
1412            }
1413
1414            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1415                break;
1416            }
1417
1418            int64_t timeoutUs;
1419            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1420
1421            if (timeoutUs == 0ll) {
1422                PostReplyWithError(replyID, -EAGAIN);
1423                break;
1424            }
1425
1426            mFlags |= kFlagDequeueInputPending;
1427            mDequeueInputReplyID = replyID;
1428
1429            if (timeoutUs > 0ll) {
1430                sp<AMessage> timeoutMsg =
1431                    new AMessage(kWhatDequeueInputTimedOut, id());
1432                timeoutMsg->setInt32(
1433                        "generation", ++mDequeueInputTimeoutGeneration);
1434                timeoutMsg->post(timeoutUs);
1435            }
1436            break;
1437        }
1438
1439        case kWhatDequeueInputTimedOut:
1440        {
1441            int32_t generation;
1442            CHECK(msg->findInt32("generation", &generation));
1443
1444            if (generation != mDequeueInputTimeoutGeneration) {
1445                // Obsolete
1446                break;
1447            }
1448
1449            CHECK(mFlags & kFlagDequeueInputPending);
1450
1451            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1452
1453            mFlags &= ~kFlagDequeueInputPending;
1454            mDequeueInputReplyID = 0;
1455            break;
1456        }
1457
1458        case kWhatQueueInputBuffer:
1459        {
1460            uint32_t replyID;
1461            CHECK(msg->senderAwaitsResponse(&replyID));
1462
1463            if (!isExecuting()) {
1464                PostReplyWithError(replyID, INVALID_OPERATION);
1465                break;
1466            } else if (mFlags & kFlagStickyError) {
1467                PostReplyWithError(replyID, getStickyError());
1468                break;
1469            }
1470
1471            status_t err = onQueueInputBuffer(msg);
1472
1473            PostReplyWithError(replyID, err);
1474            break;
1475        }
1476
1477        case kWhatDequeueOutputBuffer:
1478        {
1479            uint32_t replyID;
1480            CHECK(msg->senderAwaitsResponse(&replyID));
1481
1482            if (mFlags & kFlagIsAsync) {
1483                ALOGE("dequeueOutputBuffer can't be used in async mode");
1484                PostReplyWithError(replyID, INVALID_OPERATION);
1485                break;
1486            }
1487
1488            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1489                break;
1490            }
1491
1492            int64_t timeoutUs;
1493            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1494
1495            if (timeoutUs == 0ll) {
1496                PostReplyWithError(replyID, -EAGAIN);
1497                break;
1498            }
1499
1500            mFlags |= kFlagDequeueOutputPending;
1501            mDequeueOutputReplyID = replyID;
1502
1503            if (timeoutUs > 0ll) {
1504                sp<AMessage> timeoutMsg =
1505                    new AMessage(kWhatDequeueOutputTimedOut, id());
1506                timeoutMsg->setInt32(
1507                        "generation", ++mDequeueOutputTimeoutGeneration);
1508                timeoutMsg->post(timeoutUs);
1509            }
1510            break;
1511        }
1512
1513        case kWhatDequeueOutputTimedOut:
1514        {
1515            int32_t generation;
1516            CHECK(msg->findInt32("generation", &generation));
1517
1518            if (generation != mDequeueOutputTimeoutGeneration) {
1519                // Obsolete
1520                break;
1521            }
1522
1523            CHECK(mFlags & kFlagDequeueOutputPending);
1524
1525            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1526
1527            mFlags &= ~kFlagDequeueOutputPending;
1528            mDequeueOutputReplyID = 0;
1529            break;
1530        }
1531
1532        case kWhatReleaseOutputBuffer:
1533        {
1534            uint32_t replyID;
1535            CHECK(msg->senderAwaitsResponse(&replyID));
1536
1537            if (!isExecuting()) {
1538                PostReplyWithError(replyID, INVALID_OPERATION);
1539                break;
1540            } else if (mFlags & kFlagStickyError) {
1541                PostReplyWithError(replyID, getStickyError());
1542                break;
1543            }
1544
1545            status_t err = onReleaseOutputBuffer(msg);
1546
1547            PostReplyWithError(replyID, err);
1548            break;
1549        }
1550
1551        case kWhatSignalEndOfInputStream:
1552        {
1553            uint32_t replyID;
1554            CHECK(msg->senderAwaitsResponse(&replyID));
1555
1556            if (!isExecuting()) {
1557                PostReplyWithError(replyID, INVALID_OPERATION);
1558                break;
1559            } else if (mFlags & kFlagStickyError) {
1560                PostReplyWithError(replyID, getStickyError());
1561                break;
1562            }
1563
1564            mReplyID = replyID;
1565            mCodec->signalEndOfInputStream();
1566            break;
1567        }
1568
1569        case kWhatGetBuffers:
1570        {
1571            uint32_t replyID;
1572            CHECK(msg->senderAwaitsResponse(&replyID));
1573
1574            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1575                PostReplyWithError(replyID, INVALID_OPERATION);
1576                break;
1577            } else if (mFlags & kFlagStickyError) {
1578                PostReplyWithError(replyID, getStickyError());
1579                break;
1580            }
1581
1582            int32_t portIndex;
1583            CHECK(msg->findInt32("portIndex", &portIndex));
1584
1585            Vector<sp<ABuffer> > *dstBuffers;
1586            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1587
1588            dstBuffers->clear();
1589            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1590
1591            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1592                const BufferInfo &info = srcBuffers.itemAt(i);
1593
1594                dstBuffers->push_back(
1595                        (portIndex == kPortIndexInput && mCrypto != NULL)
1596                                ? info.mEncryptedData : info.mData);
1597            }
1598
1599            (new AMessage)->postReply(replyID);
1600            break;
1601        }
1602
1603        case kWhatFlush:
1604        {
1605            uint32_t replyID;
1606            CHECK(msg->senderAwaitsResponse(&replyID));
1607
1608            if (!isExecuting()) {
1609                PostReplyWithError(replyID, INVALID_OPERATION);
1610                break;
1611            } else if (mFlags & kFlagStickyError) {
1612                PostReplyWithError(replyID, getStickyError());
1613                break;
1614            }
1615
1616            mReplyID = replyID;
1617            // TODO: skip flushing if already FLUSHED
1618            setState(FLUSHING);
1619
1620            mCodec->signalFlush();
1621            returnBuffersToCodec();
1622            break;
1623        }
1624
1625        case kWhatGetInputFormat:
1626        case kWhatGetOutputFormat:
1627        {
1628            sp<AMessage> format =
1629                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1630
1631            uint32_t replyID;
1632            CHECK(msg->senderAwaitsResponse(&replyID));
1633
1634            if ((mState != CONFIGURED && mState != STARTING &&
1635                 mState != STARTED && mState != FLUSHING &&
1636                 mState != FLUSHED)
1637                    || format == NULL) {
1638                PostReplyWithError(replyID, INVALID_OPERATION);
1639                break;
1640            } else if (mFlags & kFlagStickyError) {
1641                PostReplyWithError(replyID, getStickyError());
1642                break;
1643            }
1644
1645            sp<AMessage> response = new AMessage;
1646            response->setMessage("format", format);
1647            response->postReply(replyID);
1648            break;
1649        }
1650
1651        case kWhatRequestIDRFrame:
1652        {
1653            mCodec->signalRequestIDRFrame();
1654            break;
1655        }
1656
1657        case kWhatRequestActivityNotification:
1658        {
1659            CHECK(mActivityNotify == NULL);
1660            CHECK(msg->findMessage("notify", &mActivityNotify));
1661
1662            postActivityNotificationIfPossible();
1663            break;
1664        }
1665
1666        case kWhatGetName:
1667        {
1668            uint32_t replyID;
1669            CHECK(msg->senderAwaitsResponse(&replyID));
1670
1671            if (mComponentName.empty()) {
1672                PostReplyWithError(replyID, INVALID_OPERATION);
1673                break;
1674            }
1675
1676            sp<AMessage> response = new AMessage;
1677            response->setString("name", mComponentName.c_str());
1678            response->postReply(replyID);
1679            break;
1680        }
1681
1682        case kWhatSetParameters:
1683        {
1684            uint32_t replyID;
1685            CHECK(msg->senderAwaitsResponse(&replyID));
1686
1687            sp<AMessage> params;
1688            CHECK(msg->findMessage("params", &params));
1689
1690            status_t err = onSetParameters(params);
1691
1692            PostReplyWithError(replyID, err);
1693            break;
1694        }
1695
1696        default:
1697            TRESPASS();
1698    }
1699}
1700
1701void MediaCodec::extractCSD(const sp<AMessage> &format) {
1702    mCSD.clear();
1703
1704    size_t i = 0;
1705    for (;;) {
1706        sp<ABuffer> csd;
1707        if (!format->findBuffer(StringPrintf("csd-%u", i).c_str(), &csd)) {
1708            break;
1709        }
1710
1711        mCSD.push_back(csd);
1712        ++i;
1713    }
1714
1715    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1716}
1717
1718status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1719    CHECK(!mCSD.empty());
1720
1721    const BufferInfo *info =
1722        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1723
1724    sp<ABuffer> csd = *mCSD.begin();
1725    mCSD.erase(mCSD.begin());
1726
1727    const sp<ABuffer> &codecInputData =
1728        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1729
1730    if (csd->size() > codecInputData->capacity()) {
1731        return -EINVAL;
1732    }
1733
1734    memcpy(codecInputData->data(), csd->data(), csd->size());
1735
1736    AString errorDetailMsg;
1737
1738    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1739    msg->setSize("index", bufferIndex);
1740    msg->setSize("offset", 0);
1741    msg->setSize("size", csd->size());
1742    msg->setInt64("timeUs", 0ll);
1743    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1744    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1745
1746    return onQueueInputBuffer(msg);
1747}
1748
1749void MediaCodec::setState(State newState) {
1750    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1751        delete mSoftRenderer;
1752        mSoftRenderer = NULL;
1753
1754        mCrypto.clear();
1755        setNativeWindow(NULL);
1756
1757        mInputFormat.clear();
1758        mOutputFormat.clear();
1759        mFlags &= ~kFlagOutputFormatChanged;
1760        mFlags &= ~kFlagOutputBuffersChanged;
1761        mFlags &= ~kFlagStickyError;
1762        mFlags &= ~kFlagIsEncoder;
1763        mFlags &= ~kFlagGatherCodecSpecificData;
1764        mFlags &= ~kFlagIsAsync;
1765        mStickyError = OK;
1766
1767        mActivityNotify.clear();
1768        mCallback.clear();
1769    }
1770
1771    if (newState == UNINITIALIZED) {
1772        // return any straggling buffers, e.g. if we got here on an error
1773        returnBuffersToCodec();
1774
1775        // The component is gone, mediaserver's probably back up already
1776        // but should definitely be back up should we try to instantiate
1777        // another component.. and the cycle continues.
1778        mFlags &= ~kFlagSawMediaServerDie;
1779    }
1780
1781    mState = newState;
1782
1783    cancelPendingDequeueOperations();
1784
1785    updateBatteryStat();
1786}
1787
1788void MediaCodec::returnBuffersToCodec() {
1789    returnBuffersToCodecOnPort(kPortIndexInput);
1790    returnBuffersToCodecOnPort(kPortIndexOutput);
1791}
1792
1793void MediaCodec::returnBuffersToCodecOnPort(int32_t portIndex) {
1794    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1795    Mutex::Autolock al(mBufferLock);
1796
1797    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1798
1799    for (size_t i = 0; i < buffers->size(); ++i) {
1800        BufferInfo *info = &buffers->editItemAt(i);
1801
1802        if (info->mNotify != NULL) {
1803            sp<AMessage> msg = info->mNotify;
1804            info->mNotify = NULL;
1805            info->mOwnedByClient = false;
1806
1807            if (portIndex == kPortIndexInput) {
1808                /* no error, just returning buffers */
1809                msg->setInt32("err", OK);
1810            }
1811            msg->post();
1812        }
1813    }
1814
1815    mAvailPortBuffers[portIndex].clear();
1816}
1817
1818size_t MediaCodec::updateBuffers(
1819        int32_t portIndex, const sp<AMessage> &msg) {
1820    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1821
1822    uint32_t bufferID;
1823    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
1824
1825    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1826
1827    for (size_t i = 0; i < buffers->size(); ++i) {
1828        BufferInfo *info = &buffers->editItemAt(i);
1829
1830        if (info->mBufferID == bufferID) {
1831            CHECK(info->mNotify == NULL);
1832            CHECK(msg->findMessage("reply", &info->mNotify));
1833
1834            info->mFormat =
1835                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
1836            mAvailPortBuffers[portIndex].push_back(i);
1837
1838            return i;
1839        }
1840    }
1841
1842    TRESPASS();
1843
1844    return 0;
1845}
1846
1847status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
1848    size_t index;
1849    size_t offset;
1850    size_t size;
1851    int64_t timeUs;
1852    uint32_t flags;
1853    CHECK(msg->findSize("index", &index));
1854    CHECK(msg->findSize("offset", &offset));
1855    CHECK(msg->findInt64("timeUs", &timeUs));
1856    CHECK(msg->findInt32("flags", (int32_t *)&flags));
1857
1858    const CryptoPlugin::SubSample *subSamples;
1859    size_t numSubSamples;
1860    const uint8_t *key;
1861    const uint8_t *iv;
1862    CryptoPlugin::Mode mode = CryptoPlugin::kMode_Unencrypted;
1863
1864    // We allow the simpler queueInputBuffer API to be used even in
1865    // secure mode, by fabricating a single unencrypted subSample.
1866    CryptoPlugin::SubSample ss;
1867
1868    if (msg->findSize("size", &size)) {
1869        if (mCrypto != NULL) {
1870            ss.mNumBytesOfClearData = size;
1871            ss.mNumBytesOfEncryptedData = 0;
1872
1873            subSamples = &ss;
1874            numSubSamples = 1;
1875            key = NULL;
1876            iv = NULL;
1877        }
1878    } else {
1879        if (mCrypto == NULL) {
1880            return -EINVAL;
1881        }
1882
1883        CHECK(msg->findPointer("subSamples", (void **)&subSamples));
1884        CHECK(msg->findSize("numSubSamples", &numSubSamples));
1885        CHECK(msg->findPointer("key", (void **)&key));
1886        CHECK(msg->findPointer("iv", (void **)&iv));
1887
1888        int32_t tmp;
1889        CHECK(msg->findInt32("mode", &tmp));
1890
1891        mode = (CryptoPlugin::Mode)tmp;
1892
1893        size = 0;
1894        for (size_t i = 0; i < numSubSamples; ++i) {
1895            size += subSamples[i].mNumBytesOfClearData;
1896            size += subSamples[i].mNumBytesOfEncryptedData;
1897        }
1898    }
1899
1900    if (index >= mPortBuffers[kPortIndexInput].size()) {
1901        return -ERANGE;
1902    }
1903
1904    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
1905
1906    if (info->mNotify == NULL || !info->mOwnedByClient) {
1907        return -EACCES;
1908    }
1909
1910    if (offset + size > info->mData->capacity()) {
1911        return -EINVAL;
1912    }
1913
1914    sp<AMessage> reply = info->mNotify;
1915    info->mData->setRange(offset, size);
1916    info->mData->meta()->setInt64("timeUs", timeUs);
1917
1918    if (flags & BUFFER_FLAG_EOS) {
1919        info->mData->meta()->setInt32("eos", true);
1920    }
1921
1922    if (flags & BUFFER_FLAG_CODECCONFIG) {
1923        info->mData->meta()->setInt32("csd", true);
1924    }
1925
1926    if (mCrypto != NULL) {
1927        if (size > info->mEncryptedData->capacity()) {
1928            return -ERANGE;
1929        }
1930
1931        AString *errorDetailMsg;
1932        CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
1933
1934        ssize_t result = mCrypto->decrypt(
1935                (mFlags & kFlagIsSecure) != 0,
1936                key,
1937                iv,
1938                mode,
1939                info->mEncryptedData->base() + offset,
1940                subSamples,
1941                numSubSamples,
1942                info->mData->base(),
1943                errorDetailMsg);
1944
1945        if (result < 0) {
1946            return result;
1947        }
1948
1949        info->mData->setRange(0, result);
1950    }
1951
1952    // synchronization boundary for getBufferAndFormat
1953    {
1954        Mutex::Autolock al(mBufferLock);
1955        info->mOwnedByClient = false;
1956    }
1957    reply->setBuffer("buffer", info->mData);
1958    reply->post();
1959
1960    info->mNotify = NULL;
1961
1962    return OK;
1963}
1964
1965status_t MediaCodec::onReleaseOutputBuffer(const sp<AMessage> &msg) {
1966    size_t index;
1967    CHECK(msg->findSize("index", &index));
1968
1969    int32_t render;
1970    if (!msg->findInt32("render", &render)) {
1971        render = 0;
1972    }
1973
1974    if (!isExecuting()) {
1975        return -EINVAL;
1976    }
1977
1978    if (index >= mPortBuffers[kPortIndexOutput].size()) {
1979        return -ERANGE;
1980    }
1981
1982    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
1983
1984    if (info->mNotify == NULL || !info->mOwnedByClient) {
1985        return -EACCES;
1986    }
1987
1988    // synchronization boundary for getBufferAndFormat
1989    {
1990        Mutex::Autolock al(mBufferLock);
1991        info->mOwnedByClient = false;
1992    }
1993
1994    if (render && info->mData != NULL && info->mData->size() != 0) {
1995        info->mNotify->setInt32("render", true);
1996
1997        int64_t timestampNs = 0;
1998        if (msg->findInt64("timestampNs", &timestampNs)) {
1999            info->mNotify->setInt64("timestampNs", timestampNs);
2000        } else {
2001            // TODO: it seems like we should use the timestamp
2002            // in the (media)buffer as it potentially came from
2003            // an input surface, but we did not propagate it prior to
2004            // API 20.  Perhaps check for target SDK version.
2005#if 0
2006            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
2007                ALOGV("using buffer PTS of %" PRId64, timestampNs);
2008                timestampNs *= 1000;
2009            }
2010#endif
2011        }
2012
2013        if (mSoftRenderer != NULL) {
2014            mSoftRenderer->render(
2015                    info->mData->data(), info->mData->size(),
2016                    timestampNs, NULL, info->mFormat);
2017        }
2018    }
2019
2020    info->mNotify->post();
2021    info->mNotify = NULL;
2022
2023    return OK;
2024}
2025
2026ssize_t MediaCodec::dequeuePortBuffer(int32_t portIndex) {
2027    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
2028
2029    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
2030
2031    if (availBuffers->empty()) {
2032        return -EAGAIN;
2033    }
2034
2035    size_t index = *availBuffers->begin();
2036    availBuffers->erase(availBuffers->begin());
2037
2038    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
2039    CHECK(!info->mOwnedByClient);
2040    {
2041        Mutex::Autolock al(mBufferLock);
2042        info->mOwnedByClient = true;
2043
2044        // set image-data
2045        if (info->mFormat != NULL) {
2046            sp<ABuffer> imageData;
2047            if (info->mFormat->findBuffer("image-data", &imageData)) {
2048                info->mData->meta()->setBuffer("image-data", imageData);
2049            }
2050            int32_t left, top, right, bottom;
2051            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
2052                info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
2053            }
2054        }
2055    }
2056
2057    return index;
2058}
2059
2060status_t MediaCodec::setNativeWindow(
2061        const sp<Surface> &surfaceTextureClient) {
2062    status_t err;
2063
2064    if (mNativeWindow != NULL) {
2065        err = native_window_api_disconnect(
2066                mNativeWindow.get(), NATIVE_WINDOW_API_MEDIA);
2067
2068        if (err != OK) {
2069            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
2070                    strerror(-err), err);
2071        }
2072
2073        mNativeWindow.clear();
2074    }
2075
2076    if (surfaceTextureClient != NULL) {
2077        err = native_window_api_connect(
2078                surfaceTextureClient.get(), NATIVE_WINDOW_API_MEDIA);
2079
2080        if (err != OK) {
2081            ALOGE("native_window_api_connect returned an error: %s (%d)",
2082                    strerror(-err), err);
2083
2084            return err;
2085        }
2086
2087        mNativeWindow = surfaceTextureClient;
2088    }
2089
2090    return OK;
2091}
2092
2093void MediaCodec::onInputBufferAvailable() {
2094    int32_t index;
2095    while ((index = dequeuePortBuffer(kPortIndexInput)) >= 0) {
2096        sp<AMessage> msg = mCallback->dup();
2097        msg->setInt32("callbackID", CB_INPUT_AVAILABLE);
2098        msg->setInt32("index", index);
2099        msg->post();
2100    }
2101}
2102
2103void MediaCodec::onOutputBufferAvailable() {
2104    int32_t index;
2105    while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
2106        const sp<ABuffer> &buffer =
2107            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
2108        sp<AMessage> msg = mCallback->dup();
2109        msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
2110        msg->setInt32("index", index);
2111        msg->setSize("offset", buffer->offset());
2112        msg->setSize("size", buffer->size());
2113
2114        int64_t timeUs;
2115        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2116
2117        msg->setInt64("timeUs", timeUs);
2118
2119        int32_t omxFlags;
2120        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
2121
2122        uint32_t flags = 0;
2123        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
2124            flags |= BUFFER_FLAG_SYNCFRAME;
2125        }
2126        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
2127            flags |= BUFFER_FLAG_CODECCONFIG;
2128        }
2129        if (omxFlags & OMX_BUFFERFLAG_EOS) {
2130            flags |= BUFFER_FLAG_EOS;
2131        }
2132
2133        msg->setInt32("flags", flags);
2134
2135        msg->post();
2136    }
2137}
2138
2139void MediaCodec::onError(status_t err, int32_t actionCode, const char *detail) {
2140    if (mCallback != NULL) {
2141        sp<AMessage> msg = mCallback->dup();
2142        msg->setInt32("callbackID", CB_ERROR);
2143        msg->setInt32("err", err);
2144        msg->setInt32("actionCode", actionCode);
2145
2146        if (detail != NULL) {
2147            msg->setString("detail", detail);
2148        }
2149
2150        msg->post();
2151    }
2152}
2153
2154void MediaCodec::onOutputFormatChanged() {
2155    if (mCallback != NULL) {
2156        sp<AMessage> msg = mCallback->dup();
2157        msg->setInt32("callbackID", CB_OUTPUT_FORMAT_CHANGED);
2158        msg->setMessage("format", mOutputFormat);
2159        msg->post();
2160    }
2161}
2162
2163
2164void MediaCodec::postActivityNotificationIfPossible() {
2165    if (mActivityNotify == NULL) {
2166        return;
2167    }
2168
2169    bool isErrorOrOutputChanged =
2170            (mFlags & (kFlagStickyError
2171                    | kFlagOutputBuffersChanged
2172                    | kFlagOutputFormatChanged));
2173
2174    if (isErrorOrOutputChanged
2175            || !mAvailPortBuffers[kPortIndexInput].empty()
2176            || !mAvailPortBuffers[kPortIndexOutput].empty()) {
2177        mActivityNotify->setInt32("input-buffers",
2178                mAvailPortBuffers[kPortIndexInput].size());
2179
2180        if (isErrorOrOutputChanged) {
2181            // we want consumer to dequeue as many times as it can
2182            mActivityNotify->setInt32("output-buffers", INT32_MAX);
2183        } else {
2184            mActivityNotify->setInt32("output-buffers",
2185                    mAvailPortBuffers[kPortIndexOutput].size());
2186        }
2187        mActivityNotify->post();
2188        mActivityNotify.clear();
2189    }
2190}
2191
2192status_t MediaCodec::setParameters(const sp<AMessage> &params) {
2193    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
2194    msg->setMessage("params", params);
2195
2196    sp<AMessage> response;
2197    return PostAndAwaitResponse(msg, &response);
2198}
2199
2200status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
2201    mCodec->signalSetParameters(params);
2202
2203    return OK;
2204}
2205
2206status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
2207        const sp<ABuffer> &buffer) {
2208    AString mime;
2209    CHECK(mOutputFormat->findString("mime", &mime));
2210
2211    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_VIDEO_AVC)) {
2212        // Codec specific data should be SPS and PPS in a single buffer,
2213        // each prefixed by a startcode (0x00 0x00 0x00 0x01).
2214        // We separate the two and put them into the output format
2215        // under the keys "csd-0" and "csd-1".
2216
2217        unsigned csdIndex = 0;
2218
2219        const uint8_t *data = buffer->data();
2220        size_t size = buffer->size();
2221
2222        const uint8_t *nalStart;
2223        size_t nalSize;
2224        while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
2225            sp<ABuffer> csd = new ABuffer(nalSize + 4);
2226            memcpy(csd->data(), "\x00\x00\x00\x01", 4);
2227            memcpy(csd->data() + 4, nalStart, nalSize);
2228
2229            mOutputFormat->setBuffer(
2230                    StringPrintf("csd-%u", csdIndex).c_str(), csd);
2231
2232            ++csdIndex;
2233        }
2234
2235        if (csdIndex != 2) {
2236            return ERROR_MALFORMED;
2237        }
2238    } else {
2239        // For everything else we just stash the codec specific data into
2240        // the output format as a single piece of csd under "csd-0".
2241        mOutputFormat->setBuffer("csd-0", buffer);
2242    }
2243
2244    return OK;
2245}
2246
2247void MediaCodec::updateBatteryStat() {
2248    if (mState == CONFIGURED && !mBatteryStatNotified) {
2249        AString mime;
2250        CHECK(mOutputFormat != NULL &&
2251                mOutputFormat->findString("mime", &mime));
2252
2253        mIsVideo = mime.startsWithIgnoreCase("video/");
2254
2255        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2256
2257        if (mIsVideo) {
2258            notifier.noteStartVideo();
2259        } else {
2260            notifier.noteStartAudio();
2261        }
2262
2263        mBatteryStatNotified = true;
2264    } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
2265        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2266
2267        if (mIsVideo) {
2268            notifier.noteStopVideo();
2269        } else {
2270            notifier.noteStopAudio();
2271        }
2272
2273        mBatteryStatNotified = false;
2274    }
2275}
2276
2277}  // namespace android
2278