MediaCodec.cpp revision 8140a2b7ef0650e8cce6be16efcbfce56d0ed1e4 
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 left, top, right, bottom, width, height;
1018                        if (mOutputFormat->findRect("crop", &left, &top, &right, &bottom)) {
1019                            mCrypto->notifyResolution(right - left + 1, bottom - top + 1);
1020                        } else if (mOutputFormat->findInt32("width", &width)
1021                                && mOutputFormat->findInt32("height", &height)) {
1022                            mCrypto->notifyResolution(width, height);
1023                        }
1024                    }
1025
1026                    break;
1027                }
1028
1029                case CodecBase::kWhatFillThisBuffer:
1030                {
1031                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1032
1033                    if (mState == FLUSHING
1034                            || mState == STOPPING
1035                            || mState == RELEASING) {
1036                        returnBuffersToCodecOnPort(kPortIndexInput);
1037                        break;
1038                    }
1039
1040                    if (!mCSD.empty()) {
1041                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1042                        CHECK_GE(index, 0);
1043
1044                        // If codec specific data had been specified as
1045                        // part of the format in the call to configure and
1046                        // if there's more csd left, we submit it here
1047                        // clients only get access to input buffers once
1048                        // this data has been exhausted.
1049
1050                        status_t err = queueCSDInputBuffer(index);
1051
1052                        if (err != OK) {
1053                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1054                                  err);
1055
1056                            setStickyError(err);
1057                            postActivityNotificationIfPossible();
1058
1059                            cancelPendingDequeueOperations();
1060                        }
1061                        break;
1062                    }
1063
1064                    if (mFlags & kFlagIsAsync) {
1065                        if (!mHaveInputSurface) {
1066                            onInputBufferAvailable();
1067                        }
1068                    } else if (mFlags & kFlagDequeueInputPending) {
1069                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1070
1071                        ++mDequeueInputTimeoutGeneration;
1072                        mFlags &= ~kFlagDequeueInputPending;
1073                        mDequeueInputReplyID = 0;
1074                    } else {
1075                        postActivityNotificationIfPossible();
1076                    }
1077                    break;
1078                }
1079
1080                case CodecBase::kWhatDrainThisBuffer:
1081                {
1082                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1083
1084                    if (mState == FLUSHING
1085                            || mState == STOPPING
1086                            || mState == RELEASING) {
1087                        returnBuffersToCodecOnPort(kPortIndexOutput);
1088                        break;
1089                    }
1090
1091                    sp<ABuffer> buffer;
1092                    CHECK(msg->findBuffer("buffer", &buffer));
1093
1094                    int32_t omxFlags;
1095                    CHECK(msg->findInt32("flags", &omxFlags));
1096
1097                    buffer->meta()->setInt32("omxFlags", omxFlags);
1098
1099                    if (mFlags & kFlagGatherCodecSpecificData) {
1100                        // This is the very first output buffer after a
1101                        // format change was signalled, it'll either contain
1102                        // the one piece of codec specific data we can expect
1103                        // or there won't be codec specific data.
1104                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1105                            status_t err =
1106                                amendOutputFormatWithCodecSpecificData(buffer);
1107
1108                            if (err != OK) {
1109                                ALOGE("Codec spit out malformed codec "
1110                                      "specific data!");
1111                            }
1112                        }
1113
1114                        mFlags &= ~kFlagGatherCodecSpecificData;
1115                        if (mFlags & kFlagIsAsync) {
1116                            onOutputFormatChanged();
1117                        } else {
1118                            mFlags |= kFlagOutputFormatChanged;
1119                        }
1120                    }
1121
1122                    if (mFlags & kFlagIsAsync) {
1123                        onOutputBufferAvailable();
1124                    } else if (mFlags & kFlagDequeueOutputPending) {
1125                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1126
1127                        ++mDequeueOutputTimeoutGeneration;
1128                        mFlags &= ~kFlagDequeueOutputPending;
1129                        mDequeueOutputReplyID = 0;
1130                    } else {
1131                        postActivityNotificationIfPossible();
1132                    }
1133
1134                    break;
1135                }
1136
1137                case CodecBase::kWhatEOS:
1138                {
1139                    // We already notify the client of this by using the
1140                    // corresponding flag in "onOutputBufferReady".
1141                    break;
1142                }
1143
1144                case CodecBase::kWhatShutdownCompleted:
1145                {
1146                    if (mState == STOPPING) {
1147                        setState(INITIALIZED);
1148                    } else {
1149                        CHECK_EQ(mState, RELEASING);
1150                        setState(UNINITIALIZED);
1151                        mComponentName.clear();
1152                    }
1153                    mFlags &= ~kFlagIsComponentAllocated;
1154
1155                    (new AMessage)->postReply(mReplyID);
1156                    break;
1157                }
1158
1159                case CodecBase::kWhatFlushCompleted:
1160                {
1161                    if (mState != FLUSHING) {
1162                        ALOGW("received FlushCompleted message in state %d",
1163                                mState);
1164                        break;
1165                    }
1166
1167                    if (mFlags & kFlagIsAsync) {
1168                        setState(FLUSHED);
1169                    } else {
1170                        setState(STARTED);
1171                        mCodec->signalResume();
1172                    }
1173
1174                    (new AMessage)->postReply(mReplyID);
1175                    break;
1176                }
1177
1178                default:
1179                    TRESPASS();
1180            }
1181            break;
1182        }
1183
1184        case kWhatInit:
1185        {
1186            uint32_t replyID;
1187            CHECK(msg->senderAwaitsResponse(&replyID));
1188
1189            if (mState != UNINITIALIZED) {
1190                PostReplyWithError(replyID, INVALID_OPERATION);
1191                break;
1192            }
1193
1194            mReplyID = replyID;
1195            setState(INITIALIZING);
1196
1197            AString name;
1198            CHECK(msg->findString("name", &name));
1199
1200            int32_t nameIsType;
1201            int32_t encoder = false;
1202            CHECK(msg->findInt32("nameIsType", &nameIsType));
1203            if (nameIsType) {
1204                CHECK(msg->findInt32("encoder", &encoder));
1205            }
1206
1207            sp<AMessage> format = new AMessage;
1208
1209            if (nameIsType) {
1210                format->setString("mime", name.c_str());
1211                format->setInt32("encoder", encoder);
1212            } else {
1213                format->setString("componentName", name.c_str());
1214            }
1215
1216            mCodec->initiateAllocateComponent(format);
1217            break;
1218        }
1219
1220        case kWhatSetCallback:
1221        {
1222            uint32_t replyID;
1223            CHECK(msg->senderAwaitsResponse(&replyID));
1224
1225            if (mState == UNINITIALIZED
1226                    || mState == INITIALIZING
1227                    || isExecuting()) {
1228                // callback can't be set after codec is executing,
1229                // or before it's initialized (as the callback
1230                // will be cleared when it goes to INITIALIZED)
1231                PostReplyWithError(replyID, INVALID_OPERATION);
1232                break;
1233            }
1234
1235            sp<AMessage> callback;
1236            CHECK(msg->findMessage("callback", &callback));
1237
1238            mCallback = callback;
1239
1240            if (mCallback != NULL) {
1241                ALOGI("MediaCodec will operate in async mode");
1242                mFlags |= kFlagIsAsync;
1243            } else {
1244                mFlags &= ~kFlagIsAsync;
1245            }
1246
1247            sp<AMessage> response = new AMessage;
1248            response->postReply(replyID);
1249            break;
1250        }
1251
1252        case kWhatConfigure:
1253        {
1254            uint32_t replyID;
1255            CHECK(msg->senderAwaitsResponse(&replyID));
1256
1257            if (mState != INITIALIZED) {
1258                PostReplyWithError(replyID, INVALID_OPERATION);
1259                break;
1260            }
1261
1262            sp<RefBase> obj;
1263            if (!msg->findObject("native-window", &obj)) {
1264                obj.clear();
1265            }
1266
1267            sp<AMessage> format;
1268            CHECK(msg->findMessage("format", &format));
1269
1270            if (obj != NULL) {
1271                format->setObject("native-window", obj);
1272
1273                status_t err = setNativeWindow(
1274                    static_cast<NativeWindowWrapper *>(obj.get())
1275                        ->getSurfaceTextureClient());
1276
1277                if (err != OK) {
1278                    PostReplyWithError(replyID, err);
1279                    break;
1280                }
1281            } else {
1282                setNativeWindow(NULL);
1283            }
1284
1285            mReplyID = replyID;
1286            setState(CONFIGURING);
1287
1288            void *crypto;
1289            if (!msg->findPointer("crypto", &crypto)) {
1290                crypto = NULL;
1291            }
1292
1293            mCrypto = static_cast<ICrypto *>(crypto);
1294
1295            uint32_t flags;
1296            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1297
1298            if (flags & CONFIGURE_FLAG_ENCODE) {
1299                format->setInt32("encoder", true);
1300                mFlags |= kFlagIsEncoder;
1301            }
1302
1303            extractCSD(format);
1304
1305            mCodec->initiateConfigureComponent(format);
1306            break;
1307        }
1308
1309        case kWhatCreateInputSurface:
1310        {
1311            uint32_t replyID;
1312            CHECK(msg->senderAwaitsResponse(&replyID));
1313
1314            // Must be configured, but can't have been started yet.
1315            if (mState != CONFIGURED) {
1316                PostReplyWithError(replyID, INVALID_OPERATION);
1317                break;
1318            }
1319
1320            mReplyID = replyID;
1321            mCodec->initiateCreateInputSurface();
1322            break;
1323        }
1324
1325        case kWhatStart:
1326        {
1327            uint32_t replyID;
1328            CHECK(msg->senderAwaitsResponse(&replyID));
1329
1330            if (mState == FLUSHED) {
1331                setState(STARTED);
1332                mCodec->signalResume();
1333                PostReplyWithError(replyID, OK);
1334                break;
1335            } else if (mState != CONFIGURED) {
1336                PostReplyWithError(replyID, INVALID_OPERATION);
1337                break;
1338            }
1339
1340            mReplyID = replyID;
1341            setState(STARTING);
1342
1343            mCodec->initiateStart();
1344            break;
1345        }
1346
1347        case kWhatStop:
1348        case kWhatRelease:
1349        {
1350            State targetState =
1351                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1352
1353            uint32_t replyID;
1354            CHECK(msg->senderAwaitsResponse(&replyID));
1355
1356            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
1357                    && mState != INITIALIZED
1358                    && mState != CONFIGURED && !isExecuting()) {
1359                // 1) Permit release to shut down the component if allocated.
1360                //
1361                // 2) We may be in "UNINITIALIZED" state already and
1362                // also shutdown the encoder/decoder without the
1363                // client being aware of this if media server died while
1364                // we were being stopped. The client would assume that
1365                // after stop() returned, it would be safe to call release()
1366                // and it should be in this case, no harm to allow a release()
1367                // if we're already uninitialized.
1368                sp<AMessage> response = new AMessage;
1369                status_t err = mState == targetState ? OK : INVALID_OPERATION;
1370                response->setInt32("err", err);
1371                if (err == OK && targetState == UNINITIALIZED) {
1372                    mComponentName.clear();
1373                }
1374                response->postReply(replyID);
1375                break;
1376            }
1377
1378            if (mFlags & kFlagSawMediaServerDie) {
1379                // It's dead, Jim. Don't expect initiateShutdown to yield
1380                // any useful results now...
1381                setState(UNINITIALIZED);
1382                if (targetState == UNINITIALIZED) {
1383                    mComponentName.clear();
1384                }
1385                (new AMessage)->postReply(replyID);
1386                break;
1387            }
1388
1389            mReplyID = replyID;
1390            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1391
1392            mCodec->initiateShutdown(
1393                    msg->what() == kWhatStop /* keepComponentAllocated */);
1394
1395            returnBuffersToCodec();
1396            break;
1397        }
1398
1399        case kWhatDequeueInputBuffer:
1400        {
1401            uint32_t replyID;
1402            CHECK(msg->senderAwaitsResponse(&replyID));
1403
1404            if (mFlags & kFlagIsAsync) {
1405                ALOGE("dequeueOutputBuffer can't be used in async mode");
1406                PostReplyWithError(replyID, INVALID_OPERATION);
1407                break;
1408            }
1409
1410            if (mHaveInputSurface) {
1411                ALOGE("dequeueInputBuffer can't be used with input surface");
1412                PostReplyWithError(replyID, INVALID_OPERATION);
1413                break;
1414            }
1415
1416            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1417                break;
1418            }
1419
1420            int64_t timeoutUs;
1421            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1422
1423            if (timeoutUs == 0ll) {
1424                PostReplyWithError(replyID, -EAGAIN);
1425                break;
1426            }
1427
1428            mFlags |= kFlagDequeueInputPending;
1429            mDequeueInputReplyID = replyID;
1430
1431            if (timeoutUs > 0ll) {
1432                sp<AMessage> timeoutMsg =
1433                    new AMessage(kWhatDequeueInputTimedOut, id());
1434                timeoutMsg->setInt32(
1435                        "generation", ++mDequeueInputTimeoutGeneration);
1436                timeoutMsg->post(timeoutUs);
1437            }
1438            break;
1439        }
1440
1441        case kWhatDequeueInputTimedOut:
1442        {
1443            int32_t generation;
1444            CHECK(msg->findInt32("generation", &generation));
1445
1446            if (generation != mDequeueInputTimeoutGeneration) {
1447                // Obsolete
1448                break;
1449            }
1450
1451            CHECK(mFlags & kFlagDequeueInputPending);
1452
1453            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1454
1455            mFlags &= ~kFlagDequeueInputPending;
1456            mDequeueInputReplyID = 0;
1457            break;
1458        }
1459
1460        case kWhatQueueInputBuffer:
1461        {
1462            uint32_t replyID;
1463            CHECK(msg->senderAwaitsResponse(&replyID));
1464
1465            if (!isExecuting()) {
1466                PostReplyWithError(replyID, INVALID_OPERATION);
1467                break;
1468            } else if (mFlags & kFlagStickyError) {
1469                PostReplyWithError(replyID, getStickyError());
1470                break;
1471            }
1472
1473            status_t err = onQueueInputBuffer(msg);
1474
1475            PostReplyWithError(replyID, err);
1476            break;
1477        }
1478
1479        case kWhatDequeueOutputBuffer:
1480        {
1481            uint32_t replyID;
1482            CHECK(msg->senderAwaitsResponse(&replyID));
1483
1484            if (mFlags & kFlagIsAsync) {
1485                ALOGE("dequeueOutputBuffer can't be used in async mode");
1486                PostReplyWithError(replyID, INVALID_OPERATION);
1487                break;
1488            }
1489
1490            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1491                break;
1492            }
1493
1494            int64_t timeoutUs;
1495            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1496
1497            if (timeoutUs == 0ll) {
1498                PostReplyWithError(replyID, -EAGAIN);
1499                break;
1500            }
1501
1502            mFlags |= kFlagDequeueOutputPending;
1503            mDequeueOutputReplyID = replyID;
1504
1505            if (timeoutUs > 0ll) {
1506                sp<AMessage> timeoutMsg =
1507                    new AMessage(kWhatDequeueOutputTimedOut, id());
1508                timeoutMsg->setInt32(
1509                        "generation", ++mDequeueOutputTimeoutGeneration);
1510                timeoutMsg->post(timeoutUs);
1511            }
1512            break;
1513        }
1514
1515        case kWhatDequeueOutputTimedOut:
1516        {
1517            int32_t generation;
1518            CHECK(msg->findInt32("generation", &generation));
1519
1520            if (generation != mDequeueOutputTimeoutGeneration) {
1521                // Obsolete
1522                break;
1523            }
1524
1525            CHECK(mFlags & kFlagDequeueOutputPending);
1526
1527            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1528
1529            mFlags &= ~kFlagDequeueOutputPending;
1530            mDequeueOutputReplyID = 0;
1531            break;
1532        }
1533
1534        case kWhatReleaseOutputBuffer:
1535        {
1536            uint32_t replyID;
1537            CHECK(msg->senderAwaitsResponse(&replyID));
1538
1539            if (!isExecuting()) {
1540                PostReplyWithError(replyID, INVALID_OPERATION);
1541                break;
1542            } else if (mFlags & kFlagStickyError) {
1543                PostReplyWithError(replyID, getStickyError());
1544                break;
1545            }
1546
1547            status_t err = onReleaseOutputBuffer(msg);
1548
1549            PostReplyWithError(replyID, err);
1550            break;
1551        }
1552
1553        case kWhatSignalEndOfInputStream:
1554        {
1555            uint32_t replyID;
1556            CHECK(msg->senderAwaitsResponse(&replyID));
1557
1558            if (!isExecuting()) {
1559                PostReplyWithError(replyID, INVALID_OPERATION);
1560                break;
1561            } else if (mFlags & kFlagStickyError) {
1562                PostReplyWithError(replyID, getStickyError());
1563                break;
1564            }
1565
1566            mReplyID = replyID;
1567            mCodec->signalEndOfInputStream();
1568            break;
1569        }
1570
1571        case kWhatGetBuffers:
1572        {
1573            uint32_t replyID;
1574            CHECK(msg->senderAwaitsResponse(&replyID));
1575
1576            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1577                PostReplyWithError(replyID, INVALID_OPERATION);
1578                break;
1579            } else if (mFlags & kFlagStickyError) {
1580                PostReplyWithError(replyID, getStickyError());
1581                break;
1582            }
1583
1584            int32_t portIndex;
1585            CHECK(msg->findInt32("portIndex", &portIndex));
1586
1587            Vector<sp<ABuffer> > *dstBuffers;
1588            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1589
1590            dstBuffers->clear();
1591            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1592
1593            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1594                const BufferInfo &info = srcBuffers.itemAt(i);
1595
1596                dstBuffers->push_back(
1597                        (portIndex == kPortIndexInput && mCrypto != NULL)
1598                                ? info.mEncryptedData : info.mData);
1599            }
1600
1601            (new AMessage)->postReply(replyID);
1602            break;
1603        }
1604
1605        case kWhatFlush:
1606        {
1607            uint32_t replyID;
1608            CHECK(msg->senderAwaitsResponse(&replyID));
1609
1610            if (!isExecuting()) {
1611                PostReplyWithError(replyID, INVALID_OPERATION);
1612                break;
1613            } else if (mFlags & kFlagStickyError) {
1614                PostReplyWithError(replyID, getStickyError());
1615                break;
1616            }
1617
1618            mReplyID = replyID;
1619            // TODO: skip flushing if already FLUSHED
1620            setState(FLUSHING);
1621
1622            mCodec->signalFlush();
1623            returnBuffersToCodec();
1624            break;
1625        }
1626
1627        case kWhatGetInputFormat:
1628        case kWhatGetOutputFormat:
1629        {
1630            sp<AMessage> format =
1631                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1632
1633            uint32_t replyID;
1634            CHECK(msg->senderAwaitsResponse(&replyID));
1635
1636            if ((mState != CONFIGURED && mState != STARTING &&
1637                 mState != STARTED && mState != FLUSHING &&
1638                 mState != FLUSHED)
1639                    || format == NULL) {
1640                PostReplyWithError(replyID, INVALID_OPERATION);
1641                break;
1642            } else if (mFlags & kFlagStickyError) {
1643                PostReplyWithError(replyID, getStickyError());
1644                break;
1645            }
1646
1647            sp<AMessage> response = new AMessage;
1648            response->setMessage("format", format);
1649            response->postReply(replyID);
1650            break;
1651        }
1652
1653        case kWhatRequestIDRFrame:
1654        {
1655            mCodec->signalRequestIDRFrame();
1656            break;
1657        }
1658
1659        case kWhatRequestActivityNotification:
1660        {
1661            CHECK(mActivityNotify == NULL);
1662            CHECK(msg->findMessage("notify", &mActivityNotify));
1663
1664            postActivityNotificationIfPossible();
1665            break;
1666        }
1667
1668        case kWhatGetName:
1669        {
1670            uint32_t replyID;
1671            CHECK(msg->senderAwaitsResponse(&replyID));
1672
1673            if (mComponentName.empty()) {
1674                PostReplyWithError(replyID, INVALID_OPERATION);
1675                break;
1676            }
1677
1678            sp<AMessage> response = new AMessage;
1679            response->setString("name", mComponentName.c_str());
1680            response->postReply(replyID);
1681            break;
1682        }
1683
1684        case kWhatSetParameters:
1685        {
1686            uint32_t replyID;
1687            CHECK(msg->senderAwaitsResponse(&replyID));
1688
1689            sp<AMessage> params;
1690            CHECK(msg->findMessage("params", &params));
1691
1692            status_t err = onSetParameters(params);
1693
1694            PostReplyWithError(replyID, err);
1695            break;
1696        }
1697
1698        default:
1699            TRESPASS();
1700    }
1701}
1702
1703void MediaCodec::extractCSD(const sp<AMessage> &format) {
1704    mCSD.clear();
1705
1706    size_t i = 0;
1707    for (;;) {
1708        sp<ABuffer> csd;
1709        if (!format->findBuffer(StringPrintf("csd-%u", i).c_str(), &csd)) {
1710            break;
1711        }
1712
1713        mCSD.push_back(csd);
1714        ++i;
1715    }
1716
1717    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1718}
1719
1720status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1721    CHECK(!mCSD.empty());
1722
1723    const BufferInfo *info =
1724        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1725
1726    sp<ABuffer> csd = *mCSD.begin();
1727    mCSD.erase(mCSD.begin());
1728
1729    const sp<ABuffer> &codecInputData =
1730        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1731
1732    if (csd->size() > codecInputData->capacity()) {
1733        return -EINVAL;
1734    }
1735
1736    memcpy(codecInputData->data(), csd->data(), csd->size());
1737
1738    AString errorDetailMsg;
1739
1740    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1741    msg->setSize("index", bufferIndex);
1742    msg->setSize("offset", 0);
1743    msg->setSize("size", csd->size());
1744    msg->setInt64("timeUs", 0ll);
1745    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1746    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1747
1748    return onQueueInputBuffer(msg);
1749}
1750
1751void MediaCodec::setState(State newState) {
1752    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1753        delete mSoftRenderer;
1754        mSoftRenderer = NULL;
1755
1756        mCrypto.clear();
1757        setNativeWindow(NULL);
1758
1759        mInputFormat.clear();
1760        mOutputFormat.clear();
1761        mFlags &= ~kFlagOutputFormatChanged;
1762        mFlags &= ~kFlagOutputBuffersChanged;
1763        mFlags &= ~kFlagStickyError;
1764        mFlags &= ~kFlagIsEncoder;
1765        mFlags &= ~kFlagGatherCodecSpecificData;
1766        mFlags &= ~kFlagIsAsync;
1767        mStickyError = OK;
1768
1769        mActivityNotify.clear();
1770        mCallback.clear();
1771    }
1772
1773    if (newState == UNINITIALIZED) {
1774        // return any straggling buffers, e.g. if we got here on an error
1775        returnBuffersToCodec();
1776
1777        // The component is gone, mediaserver's probably back up already
1778        // but should definitely be back up should we try to instantiate
1779        // another component.. and the cycle continues.
1780        mFlags &= ~kFlagSawMediaServerDie;
1781    }
1782
1783    mState = newState;
1784
1785    cancelPendingDequeueOperations();
1786
1787    updateBatteryStat();
1788}
1789
1790void MediaCodec::returnBuffersToCodec() {
1791    returnBuffersToCodecOnPort(kPortIndexInput);
1792    returnBuffersToCodecOnPort(kPortIndexOutput);
1793}
1794
1795void MediaCodec::returnBuffersToCodecOnPort(int32_t portIndex) {
1796    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1797    Mutex::Autolock al(mBufferLock);
1798
1799    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1800
1801    for (size_t i = 0; i < buffers->size(); ++i) {
1802        BufferInfo *info = &buffers->editItemAt(i);
1803
1804        if (info->mNotify != NULL) {
1805            sp<AMessage> msg = info->mNotify;
1806            info->mNotify = NULL;
1807            info->mOwnedByClient = false;
1808
1809            if (portIndex == kPortIndexInput) {
1810                /* no error, just returning buffers */
1811                msg->setInt32("err", OK);
1812            }
1813            msg->post();
1814        }
1815    }
1816
1817    mAvailPortBuffers[portIndex].clear();
1818}
1819
1820size_t MediaCodec::updateBuffers(
1821        int32_t portIndex, const sp<AMessage> &msg) {
1822    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1823
1824    uint32_t bufferID;
1825    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
1826
1827    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1828
1829    for (size_t i = 0; i < buffers->size(); ++i) {
1830        BufferInfo *info = &buffers->editItemAt(i);
1831
1832        if (info->mBufferID == bufferID) {
1833            CHECK(info->mNotify == NULL);
1834            CHECK(msg->findMessage("reply", &info->mNotify));
1835
1836            info->mFormat =
1837                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
1838            mAvailPortBuffers[portIndex].push_back(i);
1839
1840            return i;
1841        }
1842    }
1843
1844    TRESPASS();
1845
1846    return 0;
1847}
1848
1849status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
1850    size_t index;
1851    size_t offset;
1852    size_t size;
1853    int64_t timeUs;
1854    uint32_t flags;
1855    CHECK(msg->findSize("index", &index));
1856    CHECK(msg->findSize("offset", &offset));
1857    CHECK(msg->findInt64("timeUs", &timeUs));
1858    CHECK(msg->findInt32("flags", (int32_t *)&flags));
1859
1860    const CryptoPlugin::SubSample *subSamples;
1861    size_t numSubSamples;
1862    const uint8_t *key;
1863    const uint8_t *iv;
1864    CryptoPlugin::Mode mode = CryptoPlugin::kMode_Unencrypted;
1865
1866    // We allow the simpler queueInputBuffer API to be used even in
1867    // secure mode, by fabricating a single unencrypted subSample.
1868    CryptoPlugin::SubSample ss;
1869
1870    if (msg->findSize("size", &size)) {
1871        if (mCrypto != NULL) {
1872            ss.mNumBytesOfClearData = size;
1873            ss.mNumBytesOfEncryptedData = 0;
1874
1875            subSamples = &ss;
1876            numSubSamples = 1;
1877            key = NULL;
1878            iv = NULL;
1879        }
1880    } else {
1881        if (mCrypto == NULL) {
1882            return -EINVAL;
1883        }
1884
1885        CHECK(msg->findPointer("subSamples", (void **)&subSamples));
1886        CHECK(msg->findSize("numSubSamples", &numSubSamples));
1887        CHECK(msg->findPointer("key", (void **)&key));
1888        CHECK(msg->findPointer("iv", (void **)&iv));
1889
1890        int32_t tmp;
1891        CHECK(msg->findInt32("mode", &tmp));
1892
1893        mode = (CryptoPlugin::Mode)tmp;
1894
1895        size = 0;
1896        for (size_t i = 0; i < numSubSamples; ++i) {
1897            size += subSamples[i].mNumBytesOfClearData;
1898            size += subSamples[i].mNumBytesOfEncryptedData;
1899        }
1900    }
1901
1902    if (index >= mPortBuffers[kPortIndexInput].size()) {
1903        return -ERANGE;
1904    }
1905
1906    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
1907
1908    if (info->mNotify == NULL || !info->mOwnedByClient) {
1909        return -EACCES;
1910    }
1911
1912    if (offset + size > info->mData->capacity()) {
1913        return -EINVAL;
1914    }
1915
1916    sp<AMessage> reply = info->mNotify;
1917    info->mData->setRange(offset, size);
1918    info->mData->meta()->setInt64("timeUs", timeUs);
1919
1920    if (flags & BUFFER_FLAG_EOS) {
1921        info->mData->meta()->setInt32("eos", true);
1922    }
1923
1924    if (flags & BUFFER_FLAG_CODECCONFIG) {
1925        info->mData->meta()->setInt32("csd", true);
1926    }
1927
1928    if (mCrypto != NULL) {
1929        if (size > info->mEncryptedData->capacity()) {
1930            return -ERANGE;
1931        }
1932
1933        AString *errorDetailMsg;
1934        CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
1935
1936        ssize_t result = mCrypto->decrypt(
1937                (mFlags & kFlagIsSecure) != 0,
1938                key,
1939                iv,
1940                mode,
1941                info->mEncryptedData->base() + offset,
1942                subSamples,
1943                numSubSamples,
1944                info->mData->base(),
1945                errorDetailMsg);
1946
1947        if (result < 0) {
1948            return result;
1949        }
1950
1951        info->mData->setRange(0, result);
1952    }
1953
1954    // synchronization boundary for getBufferAndFormat
1955    {
1956        Mutex::Autolock al(mBufferLock);
1957        info->mOwnedByClient = false;
1958    }
1959    reply->setBuffer("buffer", info->mData);
1960    reply->post();
1961
1962    info->mNotify = NULL;
1963
1964    return OK;
1965}
1966
1967status_t MediaCodec::onReleaseOutputBuffer(const sp<AMessage> &msg) {
1968    size_t index;
1969    CHECK(msg->findSize("index", &index));
1970
1971    int32_t render;
1972    if (!msg->findInt32("render", &render)) {
1973        render = 0;
1974    }
1975
1976    if (!isExecuting()) {
1977        return -EINVAL;
1978    }
1979
1980    if (index >= mPortBuffers[kPortIndexOutput].size()) {
1981        return -ERANGE;
1982    }
1983
1984    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
1985
1986    if (info->mNotify == NULL || !info->mOwnedByClient) {
1987        return -EACCES;
1988    }
1989
1990    // synchronization boundary for getBufferAndFormat
1991    {
1992        Mutex::Autolock al(mBufferLock);
1993        info->mOwnedByClient = false;
1994    }
1995
1996    if (render && info->mData != NULL && info->mData->size() != 0) {
1997        info->mNotify->setInt32("render", true);
1998
1999        int64_t timestampNs = 0;
2000        if (msg->findInt64("timestampNs", &timestampNs)) {
2001            info->mNotify->setInt64("timestampNs", timestampNs);
2002        } else {
2003            // TODO: it seems like we should use the timestamp
2004            // in the (media)buffer as it potentially came from
2005            // an input surface, but we did not propagate it prior to
2006            // API 20.  Perhaps check for target SDK version.
2007#if 0
2008            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
2009                ALOGV("using buffer PTS of %" PRId64, timestampNs);
2010                timestampNs *= 1000;
2011            }
2012#endif
2013        }
2014
2015        if (mSoftRenderer != NULL) {
2016            mSoftRenderer->render(
2017                    info->mData->data(), info->mData->size(),
2018                    timestampNs, NULL, info->mFormat);
2019        }
2020    }
2021
2022    info->mNotify->post();
2023    info->mNotify = NULL;
2024
2025    return OK;
2026}
2027
2028ssize_t MediaCodec::dequeuePortBuffer(int32_t portIndex) {
2029    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
2030
2031    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
2032
2033    if (availBuffers->empty()) {
2034        return -EAGAIN;
2035    }
2036
2037    size_t index = *availBuffers->begin();
2038    availBuffers->erase(availBuffers->begin());
2039
2040    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
2041    CHECK(!info->mOwnedByClient);
2042    {
2043        Mutex::Autolock al(mBufferLock);
2044        info->mOwnedByClient = true;
2045
2046        // set image-data
2047        if (info->mFormat != NULL) {
2048            sp<ABuffer> imageData;
2049            if (info->mFormat->findBuffer("image-data", &imageData)) {
2050                info->mData->meta()->setBuffer("image-data", imageData);
2051            }
2052            int32_t left, top, right, bottom;
2053            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
2054                info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
2055            }
2056        }
2057    }
2058
2059    return index;
2060}
2061
2062status_t MediaCodec::setNativeWindow(
2063        const sp<Surface> &surfaceTextureClient) {
2064    status_t err;
2065
2066    if (mNativeWindow != NULL) {
2067        err = native_window_api_disconnect(
2068                mNativeWindow.get(), NATIVE_WINDOW_API_MEDIA);
2069
2070        if (err != OK) {
2071            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
2072                    strerror(-err), err);
2073        }
2074
2075        mNativeWindow.clear();
2076    }
2077
2078    if (surfaceTextureClient != NULL) {
2079        err = native_window_api_connect(
2080                surfaceTextureClient.get(), NATIVE_WINDOW_API_MEDIA);
2081
2082        if (err != OK) {
2083            ALOGE("native_window_api_connect returned an error: %s (%d)",
2084                    strerror(-err), err);
2085
2086            return err;
2087        }
2088
2089        mNativeWindow = surfaceTextureClient;
2090    }
2091
2092    return OK;
2093}
2094
2095void MediaCodec::onInputBufferAvailable() {
2096    int32_t index;
2097    while ((index = dequeuePortBuffer(kPortIndexInput)) >= 0) {
2098        sp<AMessage> msg = mCallback->dup();
2099        msg->setInt32("callbackID", CB_INPUT_AVAILABLE);
2100        msg->setInt32("index", index);
2101        msg->post();
2102    }
2103}
2104
2105void MediaCodec::onOutputBufferAvailable() {
2106    int32_t index;
2107    while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
2108        const sp<ABuffer> &buffer =
2109            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
2110        sp<AMessage> msg = mCallback->dup();
2111        msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
2112        msg->setInt32("index", index);
2113        msg->setSize("offset", buffer->offset());
2114        msg->setSize("size", buffer->size());
2115
2116        int64_t timeUs;
2117        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2118
2119        msg->setInt64("timeUs", timeUs);
2120
2121        int32_t omxFlags;
2122        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
2123
2124        uint32_t flags = 0;
2125        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
2126            flags |= BUFFER_FLAG_SYNCFRAME;
2127        }
2128        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
2129            flags |= BUFFER_FLAG_CODECCONFIG;
2130        }
2131        if (omxFlags & OMX_BUFFERFLAG_EOS) {
2132            flags |= BUFFER_FLAG_EOS;
2133        }
2134
2135        msg->setInt32("flags", flags);
2136
2137        msg->post();
2138    }
2139}
2140
2141void MediaCodec::onError(status_t err, int32_t actionCode, const char *detail) {
2142    if (mCallback != NULL) {
2143        sp<AMessage> msg = mCallback->dup();
2144        msg->setInt32("callbackID", CB_ERROR);
2145        msg->setInt32("err", err);
2146        msg->setInt32("actionCode", actionCode);
2147
2148        if (detail != NULL) {
2149            msg->setString("detail", detail);
2150        }
2151
2152        msg->post();
2153    }
2154}
2155
2156void MediaCodec::onOutputFormatChanged() {
2157    if (mCallback != NULL) {
2158        sp<AMessage> msg = mCallback->dup();
2159        msg->setInt32("callbackID", CB_OUTPUT_FORMAT_CHANGED);
2160        msg->setMessage("format", mOutputFormat);
2161        msg->post();
2162    }
2163}
2164
2165
2166void MediaCodec::postActivityNotificationIfPossible() {
2167    if (mActivityNotify == NULL) {
2168        return;
2169    }
2170
2171    bool isErrorOrOutputChanged =
2172            (mFlags & (kFlagStickyError
2173                    | kFlagOutputBuffersChanged
2174                    | kFlagOutputFormatChanged));
2175
2176    if (isErrorOrOutputChanged
2177            || !mAvailPortBuffers[kPortIndexInput].empty()
2178            || !mAvailPortBuffers[kPortIndexOutput].empty()) {
2179        mActivityNotify->setInt32("input-buffers",
2180                mAvailPortBuffers[kPortIndexInput].size());
2181
2182        if (isErrorOrOutputChanged) {
2183            // we want consumer to dequeue as many times as it can
2184            mActivityNotify->setInt32("output-buffers", INT32_MAX);
2185        } else {
2186            mActivityNotify->setInt32("output-buffers",
2187                    mAvailPortBuffers[kPortIndexOutput].size());
2188        }
2189        mActivityNotify->post();
2190        mActivityNotify.clear();
2191    }
2192}
2193
2194status_t MediaCodec::setParameters(const sp<AMessage> &params) {
2195    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
2196    msg->setMessage("params", params);
2197
2198    sp<AMessage> response;
2199    return PostAndAwaitResponse(msg, &response);
2200}
2201
2202status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
2203    mCodec->signalSetParameters(params);
2204
2205    return OK;
2206}
2207
2208status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
2209        const sp<ABuffer> &buffer) {
2210    AString mime;
2211    CHECK(mOutputFormat->findString("mime", &mime));
2212
2213    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_VIDEO_AVC)) {
2214        // Codec specific data should be SPS and PPS in a single buffer,
2215        // each prefixed by a startcode (0x00 0x00 0x00 0x01).
2216        // We separate the two and put them into the output format
2217        // under the keys "csd-0" and "csd-1".
2218
2219        unsigned csdIndex = 0;
2220
2221        const uint8_t *data = buffer->data();
2222        size_t size = buffer->size();
2223
2224        const uint8_t *nalStart;
2225        size_t nalSize;
2226        while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
2227            sp<ABuffer> csd = new ABuffer(nalSize + 4);
2228            memcpy(csd->data(), "\x00\x00\x00\x01", 4);
2229            memcpy(csd->data() + 4, nalStart, nalSize);
2230
2231            mOutputFormat->setBuffer(
2232                    StringPrintf("csd-%u", csdIndex).c_str(), csd);
2233
2234            ++csdIndex;
2235        }
2236
2237        if (csdIndex != 2) {
2238            return ERROR_MALFORMED;
2239        }
2240    } else {
2241        // For everything else we just stash the codec specific data into
2242        // the output format as a single piece of csd under "csd-0".
2243        mOutputFormat->setBuffer("csd-0", buffer);
2244    }
2245
2246    return OK;
2247}
2248
2249void MediaCodec::updateBatteryStat() {
2250    if (mState == CONFIGURED && !mBatteryStatNotified) {
2251        AString mime;
2252        CHECK(mOutputFormat != NULL &&
2253                mOutputFormat->findString("mime", &mime));
2254
2255        mIsVideo = mime.startsWithIgnoreCase("video/");
2256
2257        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2258
2259        if (mIsVideo) {
2260            notifier.noteStartVideo();
2261        } else {
2262            notifier.noteStartAudio();
2263        }
2264
2265        mBatteryStatNotified = true;
2266    } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
2267        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2268
2269        if (mIsVideo) {
2270            notifier.noteStopVideo();
2271        } else {
2272            notifier.noteStopAudio();
2273        }
2274
2275        mBatteryStatNotified = false;
2276    }
2277}
2278
2279}  // namespace android
2280