MediaCodec.cpp revision 67d93552f0fca5a2ac6a451569cc1b1e15cd138a 
1/*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "MediaCodec"
19#include <inttypes.h>
20
21#include "include/avc_utils.h"
22#include "include/SoftwareRenderer.h"
23
24#include <binder/IBatteryStats.h>
25#include <binder/IServiceManager.h>
26#include <gui/Surface.h>
27#include <media/ICrypto.h>
28#include <media/stagefright/foundation/ABuffer.h>
29#include <media/stagefright/foundation/ADebug.h>
30#include <media/stagefright/foundation/AMessage.h>
31#include <media/stagefright/foundation/AString.h>
32#include <media/stagefright/foundation/hexdump.h>
33#include <media/stagefright/ACodec.h>
34#include <media/stagefright/BufferProducerWrapper.h>
35#include <media/stagefright/MediaCodec.h>
36#include <media/stagefright/MediaCodecList.h>
37#include <media/stagefright/MediaDefs.h>
38#include <media/stagefright/MediaErrors.h>
39#include <media/stagefright/MediaFilter.h>
40#include <media/stagefright/MetaData.h>
41#include <media/stagefright/NativeWindowWrapper.h>
42#include <private/android_filesystem_config.h>
43#include <utils/Log.h>
44#include <utils/Singleton.h>
45
46namespace android {
47
48struct MediaCodec::BatteryNotifier : public Singleton<BatteryNotifier> {
49    BatteryNotifier();
50
51    void noteStartVideo();
52    void noteStopVideo();
53    void noteStartAudio();
54    void noteStopAudio();
55
56private:
57    int32_t mVideoRefCount;
58    int32_t mAudioRefCount;
59    sp<IBatteryStats> mBatteryStatService;
60};
61
62ANDROID_SINGLETON_STATIC_INSTANCE(MediaCodec::BatteryNotifier)
63
64MediaCodec::BatteryNotifier::BatteryNotifier() :
65    mVideoRefCount(0),
66    mAudioRefCount(0) {
67    // get battery service
68    const sp<IServiceManager> sm(defaultServiceManager());
69    if (sm != NULL) {
70        const String16 name("batterystats");
71        mBatteryStatService = interface_cast<IBatteryStats>(sm->getService(name));
72        if (mBatteryStatService == NULL) {
73            ALOGE("batterystats service unavailable!");
74        }
75    }
76}
77
78void MediaCodec::BatteryNotifier::noteStartVideo() {
79    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
80        mBatteryStatService->noteStartVideo(AID_MEDIA);
81    }
82    mVideoRefCount++;
83}
84
85void MediaCodec::BatteryNotifier::noteStopVideo() {
86    if (mVideoRefCount == 0) {
87        ALOGW("BatteryNotifier::noteStop(): video refcount is broken!");
88        return;
89    }
90
91    mVideoRefCount--;
92    if (mVideoRefCount == 0 && mBatteryStatService != NULL) {
93        mBatteryStatService->noteStopVideo(AID_MEDIA);
94    }
95}
96
97void MediaCodec::BatteryNotifier::noteStartAudio() {
98    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
99        mBatteryStatService->noteStartAudio(AID_MEDIA);
100    }
101    mAudioRefCount++;
102}
103
104void MediaCodec::BatteryNotifier::noteStopAudio() {
105    if (mAudioRefCount == 0) {
106        ALOGW("BatteryNotifier::noteStop(): audio refcount is broken!");
107        return;
108    }
109
110    mAudioRefCount--;
111    if (mAudioRefCount == 0 && mBatteryStatService != NULL) {
112        mBatteryStatService->noteStopAudio(AID_MEDIA);
113    }
114}
115// static
116sp<MediaCodec> MediaCodec::CreateByType(
117        const sp<ALooper> &looper, const char *mime, bool encoder, status_t *err) {
118    sp<MediaCodec> codec = new MediaCodec(looper);
119
120    const status_t ret = codec->init(mime, true /* nameIsType */, encoder);
121    if (err != NULL) {
122        *err = ret;
123    }
124    return ret == OK ? codec : NULL; // NULL deallocates codec.
125}
126
127// static
128sp<MediaCodec> MediaCodec::CreateByComponentName(
129        const sp<ALooper> &looper, const char *name, status_t *err) {
130    sp<MediaCodec> codec = new MediaCodec(looper);
131
132    const status_t ret = codec->init(name, false /* nameIsType */, false /* encoder */);
133    if (err != NULL) {
134        *err = ret;
135    }
136    return ret == OK ? codec : NULL; // NULL deallocates codec.
137}
138
139MediaCodec::MediaCodec(const sp<ALooper> &looper)
140    : mState(UNINITIALIZED),
141      mLooper(looper),
142      mCodec(NULL),
143      mReplyID(0),
144      mFlags(0),
145      mStickyError(OK),
146      mSoftRenderer(NULL),
147      mBatteryStatNotified(false),
148      mIsVideo(false),
149      mDequeueInputTimeoutGeneration(0),
150      mDequeueInputReplyID(0),
151      mDequeueOutputTimeoutGeneration(0),
152      mDequeueOutputReplyID(0),
153      mHaveInputSurface(false) {
154}
155
156MediaCodec::~MediaCodec() {
157    CHECK_EQ(mState, UNINITIALIZED);
158}
159
160// static
161status_t MediaCodec::PostAndAwaitResponse(
162        const sp<AMessage> &msg, sp<AMessage> *response) {
163    status_t err = msg->postAndAwaitResponse(response);
164
165    if (err != OK) {
166        return err;
167    }
168
169    if (!(*response)->findInt32("err", &err)) {
170        err = OK;
171    }
172
173    return err;
174}
175
176// static
177void MediaCodec::PostReplyWithError(int32_t replyID, int32_t err) {
178    sp<AMessage> response = new AMessage;
179    response->setInt32("err", err);
180    response->postReply(replyID);
181}
182
183status_t MediaCodec::init(const AString &name, bool nameIsType, bool encoder) {
184    // save init parameters for reset
185    mInitName = name;
186    mInitNameIsType = nameIsType;
187    mInitIsEncoder = encoder;
188
189    // Current video decoders do not return from OMX_FillThisBuffer
190    // quickly, violating the OpenMAX specs, until that is remedied
191    // we need to invest in an extra looper to free the main event
192    // queue.
193
194    if (nameIsType || !strncasecmp(name.c_str(), "omx.", 4)) {
195        mCodec = new ACodec;
196    } else if (!nameIsType
197            && !strncasecmp(name.c_str(), "android.filter.", 15)) {
198        mCodec = new MediaFilter;
199    } else {
200        return NAME_NOT_FOUND;
201    }
202
203    bool needDedicatedLooper = false;
204    if (nameIsType && !strncasecmp(name.c_str(), "video/", 6)) {
205        needDedicatedLooper = true;
206    } else {
207        AString tmp = name;
208        if (tmp.endsWith(".secure")) {
209            tmp.erase(tmp.size() - 7, 7);
210        }
211        const sp<IMediaCodecList> mcl = MediaCodecList::getInstance();
212        ssize_t codecIdx = mcl->findCodecByName(tmp.c_str());
213        if (codecIdx >= 0) {
214            const sp<MediaCodecInfo> info = mcl->getCodecInfo(codecIdx);
215            Vector<AString> mimes;
216            info->getSupportedMimes(&mimes);
217            for (size_t i = 0; i < mimes.size(); i++) {
218                if (mimes[i].startsWith("video/")) {
219                    needDedicatedLooper = true;
220                    break;
221                }
222            }
223        }
224    }
225
226    if (needDedicatedLooper) {
227        if (mCodecLooper == NULL) {
228            mCodecLooper = new ALooper;
229            mCodecLooper->setName("CodecLooper");
230            mCodecLooper->start(false, false, ANDROID_PRIORITY_AUDIO);
231        }
232
233        mCodecLooper->registerHandler(mCodec);
234    } else {
235        mLooper->registerHandler(mCodec);
236    }
237
238    mLooper->registerHandler(this);
239
240    mCodec->setNotificationMessage(new AMessage(kWhatCodecNotify, id()));
241
242    sp<AMessage> msg = new AMessage(kWhatInit, id());
243    msg->setString("name", name);
244    msg->setInt32("nameIsType", nameIsType);
245
246    if (nameIsType) {
247        msg->setInt32("encoder", encoder);
248    }
249
250    sp<AMessage> response;
251    return PostAndAwaitResponse(msg, &response);
252}
253
254status_t MediaCodec::setCallback(const sp<AMessage> &callback) {
255    sp<AMessage> msg = new AMessage(kWhatSetCallback, id());
256    msg->setMessage("callback", callback);
257
258    sp<AMessage> response;
259    return PostAndAwaitResponse(msg, &response);
260}
261
262status_t MediaCodec::configure(
263        const sp<AMessage> &format,
264        const sp<Surface> &nativeWindow,
265        const sp<ICrypto> &crypto,
266        uint32_t flags) {
267    sp<AMessage> msg = new AMessage(kWhatConfigure, id());
268
269    msg->setMessage("format", format);
270    msg->setInt32("flags", flags);
271
272    if (nativeWindow != NULL) {
273        msg->setObject(
274                "native-window",
275                new NativeWindowWrapper(nativeWindow));
276    }
277
278    if (crypto != NULL) {
279        msg->setPointer("crypto", crypto.get());
280    }
281
282    sp<AMessage> response;
283    status_t err = PostAndAwaitResponse(msg, &response);
284
285    if (err != OK && err != INVALID_OPERATION) {
286        // MediaCodec now set state to UNINITIALIZED upon any fatal error.
287        // To maintain backward-compatibility, do a reset() to put codec
288        // back into INITIALIZED state.
289        // But don't reset if the err is INVALID_OPERATION, which means
290        // the configure failure is due to wrong state.
291
292        ALOGE("configure failed with err 0x%08x, resetting...", err);
293        reset();
294    }
295
296    return err;
297}
298
299status_t MediaCodec::createInputSurface(
300        sp<IGraphicBufferProducer>* bufferProducer) {
301    sp<AMessage> msg = new AMessage(kWhatCreateInputSurface, id());
302
303    sp<AMessage> response;
304    status_t err = PostAndAwaitResponse(msg, &response);
305    if (err == NO_ERROR) {
306        // unwrap the sp<IGraphicBufferProducer>
307        sp<RefBase> obj;
308        bool found = response->findObject("input-surface", &obj);
309        CHECK(found);
310        sp<BufferProducerWrapper> wrapper(
311                static_cast<BufferProducerWrapper*>(obj.get()));
312        *bufferProducer = wrapper->getBufferProducer();
313    } else {
314        ALOGW("createInputSurface failed, err=%d", err);
315    }
316    return err;
317}
318
319status_t MediaCodec::start() {
320    sp<AMessage> msg = new AMessage(kWhatStart, id());
321
322    sp<AMessage> response;
323    return PostAndAwaitResponse(msg, &response);
324}
325
326status_t MediaCodec::stop() {
327    sp<AMessage> msg = new AMessage(kWhatStop, id());
328
329    sp<AMessage> response;
330    return PostAndAwaitResponse(msg, &response);
331}
332
333status_t MediaCodec::release() {
334    sp<AMessage> msg = new AMessage(kWhatRelease, id());
335
336    sp<AMessage> response;
337    return PostAndAwaitResponse(msg, &response);
338}
339
340status_t MediaCodec::reset() {
341    /* When external-facing MediaCodec object is created,
342       it is already initialized.  Thus, reset is essentially
343       release() followed by init(), plus clearing the state */
344
345    status_t err = release();
346
347    // unregister handlers
348    if (mCodec != NULL) {
349        if (mCodecLooper != NULL) {
350            mCodecLooper->unregisterHandler(mCodec->id());
351        } else {
352            mLooper->unregisterHandler(mCodec->id());
353        }
354        mCodec = NULL;
355    }
356    mLooper->unregisterHandler(id());
357
358    mFlags = 0;    // clear all flags
359    mStickyError = OK;
360
361    // reset state not reset by setState(UNINITIALIZED)
362    mReplyID = 0;
363    mDequeueInputReplyID = 0;
364    mDequeueOutputReplyID = 0;
365    mDequeueInputTimeoutGeneration = 0;
366    mDequeueOutputTimeoutGeneration = 0;
367    mHaveInputSurface = false;
368
369    if (err == OK) {
370        err = init(mInitName, mInitNameIsType, mInitIsEncoder);
371    }
372    return err;
373}
374
375status_t MediaCodec::queueInputBuffer(
376        size_t index,
377        size_t offset,
378        size_t size,
379        int64_t presentationTimeUs,
380        uint32_t flags,
381        AString *errorDetailMsg) {
382    if (errorDetailMsg != NULL) {
383        errorDetailMsg->clear();
384    }
385
386    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
387    msg->setSize("index", index);
388    msg->setSize("offset", offset);
389    msg->setSize("size", size);
390    msg->setInt64("timeUs", presentationTimeUs);
391    msg->setInt32("flags", flags);
392    msg->setPointer("errorDetailMsg", errorDetailMsg);
393
394    sp<AMessage> response;
395    return PostAndAwaitResponse(msg, &response);
396}
397
398status_t MediaCodec::queueSecureInputBuffer(
399        size_t index,
400        size_t offset,
401        const CryptoPlugin::SubSample *subSamples,
402        size_t numSubSamples,
403        const uint8_t key[16],
404        const uint8_t iv[16],
405        CryptoPlugin::Mode mode,
406        int64_t presentationTimeUs,
407        uint32_t flags,
408        AString *errorDetailMsg) {
409    if (errorDetailMsg != NULL) {
410        errorDetailMsg->clear();
411    }
412
413    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
414    msg->setSize("index", index);
415    msg->setSize("offset", offset);
416    msg->setPointer("subSamples", (void *)subSamples);
417    msg->setSize("numSubSamples", numSubSamples);
418    msg->setPointer("key", (void *)key);
419    msg->setPointer("iv", (void *)iv);
420    msg->setInt32("mode", mode);
421    msg->setInt64("timeUs", presentationTimeUs);
422    msg->setInt32("flags", flags);
423    msg->setPointer("errorDetailMsg", errorDetailMsg);
424
425    sp<AMessage> response;
426    status_t err = PostAndAwaitResponse(msg, &response);
427
428    return err;
429}
430
431status_t MediaCodec::dequeueInputBuffer(size_t *index, int64_t timeoutUs) {
432    sp<AMessage> msg = new AMessage(kWhatDequeueInputBuffer, id());
433    msg->setInt64("timeoutUs", timeoutUs);
434
435    sp<AMessage> response;
436    status_t err;
437    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
438        return err;
439    }
440
441    CHECK(response->findSize("index", index));
442
443    return OK;
444}
445
446status_t MediaCodec::dequeueOutputBuffer(
447        size_t *index,
448        size_t *offset,
449        size_t *size,
450        int64_t *presentationTimeUs,
451        uint32_t *flags,
452        int64_t timeoutUs) {
453    sp<AMessage> msg = new AMessage(kWhatDequeueOutputBuffer, id());
454    msg->setInt64("timeoutUs", timeoutUs);
455
456    sp<AMessage> response;
457    status_t err;
458    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
459        return err;
460    }
461
462    CHECK(response->findSize("index", index));
463    CHECK(response->findSize("offset", offset));
464    CHECK(response->findSize("size", size));
465    CHECK(response->findInt64("timeUs", presentationTimeUs));
466    CHECK(response->findInt32("flags", (int32_t *)flags));
467
468    return OK;
469}
470
471status_t MediaCodec::renderOutputBufferAndRelease(size_t index) {
472    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
473    msg->setSize("index", index);
474    msg->setInt32("render", true);
475
476    sp<AMessage> response;
477    return PostAndAwaitResponse(msg, &response);
478}
479
480status_t MediaCodec::renderOutputBufferAndRelease(size_t index, int64_t timestampNs) {
481    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
482    msg->setSize("index", index);
483    msg->setInt32("render", true);
484    msg->setInt64("timestampNs", timestampNs);
485
486    sp<AMessage> response;
487    return PostAndAwaitResponse(msg, &response);
488}
489
490status_t MediaCodec::releaseOutputBuffer(size_t index) {
491    sp<AMessage> msg = new AMessage(kWhatReleaseOutputBuffer, id());
492    msg->setSize("index", index);
493
494    sp<AMessage> response;
495    return PostAndAwaitResponse(msg, &response);
496}
497
498status_t MediaCodec::signalEndOfInputStream() {
499    sp<AMessage> msg = new AMessage(kWhatSignalEndOfInputStream, id());
500
501    sp<AMessage> response;
502    return PostAndAwaitResponse(msg, &response);
503}
504
505status_t MediaCodec::getOutputFormat(sp<AMessage> *format) const {
506    sp<AMessage> msg = new AMessage(kWhatGetOutputFormat, id());
507
508    sp<AMessage> response;
509    status_t err;
510    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
511        return err;
512    }
513
514    CHECK(response->findMessage("format", format));
515
516    return OK;
517}
518
519status_t MediaCodec::getInputFormat(sp<AMessage> *format) const {
520    sp<AMessage> msg = new AMessage(kWhatGetInputFormat, id());
521
522    sp<AMessage> response;
523    status_t err;
524    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
525        return err;
526    }
527
528    CHECK(response->findMessage("format", format));
529
530    return OK;
531}
532
533status_t MediaCodec::getName(AString *name) const {
534    sp<AMessage> msg = new AMessage(kWhatGetName, id());
535
536    sp<AMessage> response;
537    status_t err;
538    if ((err = PostAndAwaitResponse(msg, &response)) != OK) {
539        return err;
540    }
541
542    CHECK(response->findString("name", name));
543
544    return OK;
545}
546
547status_t MediaCodec::getInputBuffers(Vector<sp<ABuffer> > *buffers) const {
548    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
549    msg->setInt32("portIndex", kPortIndexInput);
550    msg->setPointer("buffers", buffers);
551
552    sp<AMessage> response;
553    return PostAndAwaitResponse(msg, &response);
554}
555
556status_t MediaCodec::getOutputBuffers(Vector<sp<ABuffer> > *buffers) const {
557    sp<AMessage> msg = new AMessage(kWhatGetBuffers, id());
558    msg->setInt32("portIndex", kPortIndexOutput);
559    msg->setPointer("buffers", buffers);
560
561    sp<AMessage> response;
562    return PostAndAwaitResponse(msg, &response);
563}
564
565status_t MediaCodec::getOutputBuffer(size_t index, sp<ABuffer> *buffer) {
566    sp<AMessage> format;
567    return getBufferAndFormat(kPortIndexOutput, index, buffer, &format);
568}
569
570status_t MediaCodec::getOutputFormat(size_t index, sp<AMessage> *format) {
571    sp<ABuffer> buffer;
572    return getBufferAndFormat(kPortIndexOutput, index, &buffer, format);
573}
574
575status_t MediaCodec::getInputBuffer(size_t index, sp<ABuffer> *buffer) {
576    sp<AMessage> format;
577    return getBufferAndFormat(kPortIndexInput, index, buffer, &format);
578}
579
580bool MediaCodec::isExecuting() const {
581    return mState == STARTED || mState == FLUSHED;
582}
583
584status_t MediaCodec::getBufferAndFormat(
585        size_t portIndex, size_t index,
586        sp<ABuffer> *buffer, sp<AMessage> *format) {
587    // use mutex instead of a context switch
588
589    buffer->clear();
590    format->clear();
591    if (!isExecuting()) {
592        return INVALID_OPERATION;
593    }
594
595    // we do not want mPortBuffers to change during this section
596    // we also don't want mOwnedByClient to change during this
597    Mutex::Autolock al(mBufferLock);
598    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
599    if (index < buffers->size()) {
600        const BufferInfo &info = buffers->itemAt(index);
601        if (info.mOwnedByClient) {
602            // by the time buffers array is initialized, crypto is set
603            if (portIndex == kPortIndexInput && mCrypto != NULL) {
604                *buffer = info.mEncryptedData;
605            } else {
606                *buffer = info.mData;
607            }
608            *format = info.mFormat;
609        }
610    }
611    return OK;
612}
613
614status_t MediaCodec::flush() {
615    sp<AMessage> msg = new AMessage(kWhatFlush, id());
616
617    sp<AMessage> response;
618    return PostAndAwaitResponse(msg, &response);
619}
620
621status_t MediaCodec::requestIDRFrame() {
622    (new AMessage(kWhatRequestIDRFrame, id()))->post();
623
624    return OK;
625}
626
627void MediaCodec::requestActivityNotification(const sp<AMessage> &notify) {
628    sp<AMessage> msg = new AMessage(kWhatRequestActivityNotification, id());
629    msg->setMessage("notify", notify);
630    msg->post();
631}
632
633////////////////////////////////////////////////////////////////////////////////
634
635void MediaCodec::cancelPendingDequeueOperations() {
636    if (mFlags & kFlagDequeueInputPending) {
637        PostReplyWithError(mDequeueInputReplyID, INVALID_OPERATION);
638
639        ++mDequeueInputTimeoutGeneration;
640        mDequeueInputReplyID = 0;
641        mFlags &= ~kFlagDequeueInputPending;
642    }
643
644    if (mFlags & kFlagDequeueOutputPending) {
645        PostReplyWithError(mDequeueOutputReplyID, INVALID_OPERATION);
646
647        ++mDequeueOutputTimeoutGeneration;
648        mDequeueOutputReplyID = 0;
649        mFlags &= ~kFlagDequeueOutputPending;
650    }
651}
652
653bool MediaCodec::handleDequeueInputBuffer(uint32_t replyID, bool newRequest) {
654    if (!isExecuting() || (mFlags & kFlagIsAsync)
655            || (newRequest && (mFlags & kFlagDequeueInputPending))) {
656        PostReplyWithError(replyID, INVALID_OPERATION);
657        return true;
658    } else if (mFlags & kFlagStickyError) {
659        PostReplyWithError(replyID, getStickyError());
660        return true;
661    }
662
663    ssize_t index = dequeuePortBuffer(kPortIndexInput);
664
665    if (index < 0) {
666        CHECK_EQ(index, -EAGAIN);
667        return false;
668    }
669
670    sp<AMessage> response = new AMessage;
671    response->setSize("index", index);
672    response->postReply(replyID);
673
674    return true;
675}
676
677bool MediaCodec::handleDequeueOutputBuffer(uint32_t replyID, bool newRequest) {
678    sp<AMessage> response = new AMessage;
679
680    if (!isExecuting() || (mFlags & kFlagIsAsync)
681            || (newRequest && (mFlags & kFlagDequeueOutputPending))) {
682        response->setInt32("err", INVALID_OPERATION);
683    } else if (mFlags & kFlagStickyError) {
684        response->setInt32("err", getStickyError());
685    } else if (mFlags & kFlagOutputBuffersChanged) {
686        response->setInt32("err", INFO_OUTPUT_BUFFERS_CHANGED);
687        mFlags &= ~kFlagOutputBuffersChanged;
688    } else if (mFlags & kFlagOutputFormatChanged) {
689        response->setInt32("err", INFO_FORMAT_CHANGED);
690        mFlags &= ~kFlagOutputFormatChanged;
691    } else {
692        ssize_t index = dequeuePortBuffer(kPortIndexOutput);
693
694        if (index < 0) {
695            CHECK_EQ(index, -EAGAIN);
696            return false;
697        }
698
699        const sp<ABuffer> &buffer =
700            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
701
702        response->setSize("index", index);
703        response->setSize("offset", buffer->offset());
704        response->setSize("size", buffer->size());
705
706        int64_t timeUs;
707        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
708
709        response->setInt64("timeUs", timeUs);
710
711        int32_t omxFlags;
712        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
713
714        uint32_t flags = 0;
715        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
716            flags |= BUFFER_FLAG_SYNCFRAME;
717        }
718        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
719            flags |= BUFFER_FLAG_CODECCONFIG;
720        }
721        if (omxFlags & OMX_BUFFERFLAG_EOS) {
722            flags |= BUFFER_FLAG_EOS;
723        }
724
725        response->setInt32("flags", flags);
726    }
727
728    response->postReply(replyID);
729
730    return true;
731}
732
733void MediaCodec::onMessageReceived(const sp<AMessage> &msg) {
734    switch (msg->what()) {
735        case kWhatCodecNotify:
736        {
737            int32_t what;
738            CHECK(msg->findInt32("what", &what));
739
740            switch (what) {
741                case CodecBase::kWhatError:
742                {
743                    int32_t err, actionCode;
744                    CHECK(msg->findInt32("err", &err));
745                    CHECK(msg->findInt32("actionCode", &actionCode));
746
747                    ALOGE("Codec reported err %#x, actionCode %d, while in state %d",
748                            err, actionCode, mState);
749                    if (err == DEAD_OBJECT) {
750                        mFlags |= kFlagSawMediaServerDie;
751                        mFlags &= ~kFlagIsComponentAllocated;
752                    }
753
754                    bool sendErrorResponse = true;
755
756                    switch (mState) {
757                        case INITIALIZING:
758                        {
759                            setState(UNINITIALIZED);
760                            break;
761                        }
762
763                        case CONFIGURING:
764                        {
765                            setState(actionCode == ACTION_CODE_FATAL ?
766                                    UNINITIALIZED : INITIALIZED);
767                            break;
768                        }
769
770                        case STARTING:
771                        {
772                            setState(actionCode == ACTION_CODE_FATAL ?
773                                    UNINITIALIZED : CONFIGURED);
774                            break;
775                        }
776
777                        case STOPPING:
778                        case RELEASING:
779                        {
780                            // Ignore the error, assuming we'll still get
781                            // the shutdown complete notification.
782
783                            sendErrorResponse = false;
784
785                            if (mFlags & kFlagSawMediaServerDie) {
786                                // MediaServer died, there definitely won't
787                                // be a shutdown complete notification after
788                                // all.
789
790                                // note that we're directly going from
791                                // STOPPING->UNINITIALIZED, instead of the
792                                // usual STOPPING->INITIALIZED state.
793                                setState(UNINITIALIZED);
794                                if (mState == RELEASING) {
795                                    mComponentName.clear();
796                                }
797                                (new AMessage)->postReply(mReplyID);
798                            }
799                            break;
800                        }
801
802                        case FLUSHING:
803                        {
804                            if (actionCode == ACTION_CODE_FATAL) {
805                                setState(UNINITIALIZED);
806                            } else {
807                                setState(
808                                        (mFlags & kFlagIsAsync) ? FLUSHED : STARTED);
809                            }
810                            break;
811                        }
812
813                        case FLUSHED:
814                        case STARTED:
815                        {
816                            sendErrorResponse = false;
817
818                            setStickyError(err);
819                            postActivityNotificationIfPossible();
820
821                            cancelPendingDequeueOperations();
822
823                            if (mFlags & kFlagIsAsync) {
824                                onError(err, actionCode);
825                            }
826                            switch (actionCode) {
827                            case ACTION_CODE_TRANSIENT:
828                                break;
829                            case ACTION_CODE_RECOVERABLE:
830                                setState(INITIALIZED);
831                                break;
832                            default:
833                                setState(UNINITIALIZED);
834                                break;
835                            }
836                            break;
837                        }
838
839                        default:
840                        {
841                            sendErrorResponse = false;
842
843                            setStickyError(err);
844                            postActivityNotificationIfPossible();
845
846                            // actionCode in an uninitialized state is always fatal.
847                            if (mState == UNINITIALIZED) {
848                                actionCode = ACTION_CODE_FATAL;
849                            }
850                            if (mFlags & kFlagIsAsync) {
851                                onError(err, actionCode);
852                            }
853                            switch (actionCode) {
854                            case ACTION_CODE_TRANSIENT:
855                                break;
856                            case ACTION_CODE_RECOVERABLE:
857                                setState(INITIALIZED);
858                                break;
859                            default:
860                                setState(UNINITIALIZED);
861                                break;
862                            }
863                            break;
864                        }
865                    }
866
867                    if (sendErrorResponse) {
868                        PostReplyWithError(mReplyID, err);
869                    }
870                    break;
871                }
872
873                case CodecBase::kWhatComponentAllocated:
874                {
875                    CHECK_EQ(mState, INITIALIZING);
876                    setState(INITIALIZED);
877                    mFlags |= kFlagIsComponentAllocated;
878
879                    CHECK(msg->findString("componentName", &mComponentName));
880
881                    if (mComponentName.startsWith("OMX.google.")) {
882                        mFlags |= kFlagIsSoftwareCodec;
883                    } else {
884                        mFlags &= ~kFlagIsSoftwareCodec;
885                    }
886
887                    if (mComponentName.endsWith(".secure")) {
888                        mFlags |= kFlagIsSecure;
889                    } else {
890                        mFlags &= ~kFlagIsSecure;
891                    }
892
893                    (new AMessage)->postReply(mReplyID);
894                    break;
895                }
896
897                case CodecBase::kWhatComponentConfigured:
898                {
899                    CHECK_EQ(mState, CONFIGURING);
900
901                    // reset input surface flag
902                    mHaveInputSurface = false;
903
904                    CHECK(msg->findMessage("input-format", &mInputFormat));
905                    CHECK(msg->findMessage("output-format", &mOutputFormat));
906
907                    setState(CONFIGURED);
908                    (new AMessage)->postReply(mReplyID);
909                    break;
910                }
911
912                case CodecBase::kWhatInputSurfaceCreated:
913                {
914                    // response to initiateCreateInputSurface()
915                    status_t err = NO_ERROR;
916                    sp<AMessage> response = new AMessage();
917                    if (!msg->findInt32("err", &err)) {
918                        sp<RefBase> obj;
919                        msg->findObject("input-surface", &obj);
920                        CHECK(obj != NULL);
921                        response->setObject("input-surface", obj);
922                        mHaveInputSurface = true;
923                    } else {
924                        response->setInt32("err", err);
925                    }
926                    response->postReply(mReplyID);
927                    break;
928                }
929
930                case CodecBase::kWhatSignaledInputEOS:
931                {
932                    // response to signalEndOfInputStream()
933                    sp<AMessage> response = new AMessage();
934                    status_t err;
935                    if (msg->findInt32("err", &err)) {
936                        response->setInt32("err", err);
937                    }
938                    response->postReply(mReplyID);
939                    break;
940                }
941
942
943                case CodecBase::kWhatBuffersAllocated:
944                {
945                    Mutex::Autolock al(mBufferLock);
946                    int32_t portIndex;
947                    CHECK(msg->findInt32("portIndex", &portIndex));
948
949                    ALOGV("%s buffers allocated",
950                          portIndex == kPortIndexInput ? "input" : "output");
951
952                    CHECK(portIndex == kPortIndexInput
953                            || portIndex == kPortIndexOutput);
954
955                    mPortBuffers[portIndex].clear();
956
957                    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
958
959                    sp<RefBase> obj;
960                    CHECK(msg->findObject("portDesc", &obj));
961
962                    sp<CodecBase::PortDescription> portDesc =
963                        static_cast<CodecBase::PortDescription *>(obj.get());
964
965                    size_t numBuffers = portDesc->countBuffers();
966
967                    for (size_t i = 0; i < numBuffers; ++i) {
968                        BufferInfo info;
969                        info.mBufferID = portDesc->bufferIDAt(i);
970                        info.mOwnedByClient = false;
971                        info.mData = portDesc->bufferAt(i);
972
973                        if (portIndex == kPortIndexInput && mCrypto != NULL) {
974                            info.mEncryptedData =
975                                new ABuffer(info.mData->capacity());
976                        }
977
978                        buffers->push_back(info);
979                    }
980
981                    if (portIndex == kPortIndexOutput) {
982                        if (mState == STARTING) {
983                            // We're always allocating output buffers after
984                            // allocating input buffers, so this is a good
985                            // indication that now all buffers are allocated.
986                            setState(STARTED);
987                            (new AMessage)->postReply(mReplyID);
988                        } else {
989                            mFlags |= kFlagOutputBuffersChanged;
990                            postActivityNotificationIfPossible();
991                        }
992                    }
993                    break;
994                }
995
996                case CodecBase::kWhatOutputFormatChanged:
997                {
998                    ALOGV("codec output format changed");
999
1000                    if (mSoftRenderer == NULL &&
1001                            mNativeWindow != NULL &&
1002                            (mFlags & kFlagIsSoftwareCodec)) {
1003                        AString mime;
1004                        CHECK(msg->findString("mime", &mime));
1005
1006                        if (mime.startsWithIgnoreCase("video/")) {
1007                            mSoftRenderer = new SoftwareRenderer(mNativeWindow);
1008                        }
1009                    }
1010
1011                    mOutputFormat = msg;
1012
1013                    if (mFlags & kFlagIsEncoder) {
1014                        // Before we announce the format change we should
1015                        // collect codec specific data and amend the output
1016                        // format as necessary.
1017                        mFlags |= kFlagGatherCodecSpecificData;
1018                    } else if (mFlags & kFlagIsAsync) {
1019                        onOutputFormatChanged();
1020                    } else {
1021                        mFlags |= kFlagOutputFormatChanged;
1022                        postActivityNotificationIfPossible();
1023                    }
1024
1025                    // Notify mCrypto of video resolution changes
1026                    if (mCrypto != NULL) {
1027                      int32_t height, width;
1028                      if (mOutputFormat->findInt32("height", &height) &&
1029                          mOutputFormat->findInt32("width", &width)) {
1030                        mCrypto->notifyResolution(width, height);
1031                      }
1032                    }
1033
1034                    break;
1035                }
1036
1037                case CodecBase::kWhatFillThisBuffer:
1038                {
1039                    /* size_t index = */updateBuffers(kPortIndexInput, msg);
1040
1041                    if (mState == FLUSHING
1042                            || mState == STOPPING
1043                            || mState == RELEASING) {
1044                        returnBuffersToCodecOnPort(kPortIndexInput);
1045                        break;
1046                    }
1047
1048                    if (!mCSD.empty()) {
1049                        ssize_t index = dequeuePortBuffer(kPortIndexInput);
1050                        CHECK_GE(index, 0);
1051
1052                        // If codec specific data had been specified as
1053                        // part of the format in the call to configure and
1054                        // if there's more csd left, we submit it here
1055                        // clients only get access to input buffers once
1056                        // this data has been exhausted.
1057
1058                        status_t err = queueCSDInputBuffer(index);
1059
1060                        if (err != OK) {
1061                            ALOGE("queueCSDInputBuffer failed w/ error %d",
1062                                  err);
1063
1064                            setStickyError(err);
1065                            postActivityNotificationIfPossible();
1066
1067                            cancelPendingDequeueOperations();
1068                        }
1069                        break;
1070                    }
1071
1072                    if (mFlags & kFlagIsAsync) {
1073                        if (!mHaveInputSurface) {
1074                            onInputBufferAvailable();
1075                        }
1076                    } else if (mFlags & kFlagDequeueInputPending) {
1077                        CHECK(handleDequeueInputBuffer(mDequeueInputReplyID));
1078
1079                        ++mDequeueInputTimeoutGeneration;
1080                        mFlags &= ~kFlagDequeueInputPending;
1081                        mDequeueInputReplyID = 0;
1082                    } else {
1083                        postActivityNotificationIfPossible();
1084                    }
1085                    break;
1086                }
1087
1088                case CodecBase::kWhatDrainThisBuffer:
1089                {
1090                    /* size_t index = */updateBuffers(kPortIndexOutput, msg);
1091
1092                    if (mState == FLUSHING
1093                            || mState == STOPPING
1094                            || mState == RELEASING) {
1095                        returnBuffersToCodecOnPort(kPortIndexOutput);
1096                        break;
1097                    }
1098
1099                    sp<ABuffer> buffer;
1100                    CHECK(msg->findBuffer("buffer", &buffer));
1101
1102                    int32_t omxFlags;
1103                    CHECK(msg->findInt32("flags", &omxFlags));
1104
1105                    buffer->meta()->setInt32("omxFlags", omxFlags);
1106
1107                    if (mFlags & kFlagGatherCodecSpecificData) {
1108                        // This is the very first output buffer after a
1109                        // format change was signalled, it'll either contain
1110                        // the one piece of codec specific data we can expect
1111                        // or there won't be codec specific data.
1112                        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
1113                            status_t err =
1114                                amendOutputFormatWithCodecSpecificData(buffer);
1115
1116                            if (err != OK) {
1117                                ALOGE("Codec spit out malformed codec "
1118                                      "specific data!");
1119                            }
1120                        }
1121
1122                        mFlags &= ~kFlagGatherCodecSpecificData;
1123                        if (mFlags & kFlagIsAsync) {
1124                            onOutputFormatChanged();
1125                        } else {
1126                            mFlags |= kFlagOutputFormatChanged;
1127                        }
1128                    }
1129
1130                    if (mFlags & kFlagIsAsync) {
1131                        onOutputBufferAvailable();
1132                    } else if (mFlags & kFlagDequeueOutputPending) {
1133                        CHECK(handleDequeueOutputBuffer(mDequeueOutputReplyID));
1134
1135                        ++mDequeueOutputTimeoutGeneration;
1136                        mFlags &= ~kFlagDequeueOutputPending;
1137                        mDequeueOutputReplyID = 0;
1138                    } else {
1139                        postActivityNotificationIfPossible();
1140                    }
1141
1142                    break;
1143                }
1144
1145                case CodecBase::kWhatEOS:
1146                {
1147                    // We already notify the client of this by using the
1148                    // corresponding flag in "onOutputBufferReady".
1149                    break;
1150                }
1151
1152                case CodecBase::kWhatShutdownCompleted:
1153                {
1154                    if (mState == STOPPING) {
1155                        setState(INITIALIZED);
1156                    } else {
1157                        CHECK_EQ(mState, RELEASING);
1158                        setState(UNINITIALIZED);
1159                        mComponentName.clear();
1160                    }
1161                    mFlags &= ~kFlagIsComponentAllocated;
1162
1163                    (new AMessage)->postReply(mReplyID);
1164                    break;
1165                }
1166
1167                case CodecBase::kWhatFlushCompleted:
1168                {
1169                    if (mState != FLUSHING) {
1170                        ALOGW("received FlushCompleted message in state %d",
1171                                mState);
1172                        break;
1173                    }
1174
1175                    if (mFlags & kFlagIsAsync) {
1176                        setState(FLUSHED);
1177                    } else {
1178                        setState(STARTED);
1179                        mCodec->signalResume();
1180                    }
1181
1182                    (new AMessage)->postReply(mReplyID);
1183                    break;
1184                }
1185
1186                default:
1187                    TRESPASS();
1188            }
1189            break;
1190        }
1191
1192        case kWhatInit:
1193        {
1194            uint32_t replyID;
1195            CHECK(msg->senderAwaitsResponse(&replyID));
1196
1197            if (mState != UNINITIALIZED) {
1198                PostReplyWithError(replyID, INVALID_OPERATION);
1199                break;
1200            }
1201
1202            mReplyID = replyID;
1203            setState(INITIALIZING);
1204
1205            AString name;
1206            CHECK(msg->findString("name", &name));
1207
1208            int32_t nameIsType;
1209            int32_t encoder = false;
1210            CHECK(msg->findInt32("nameIsType", &nameIsType));
1211            if (nameIsType) {
1212                CHECK(msg->findInt32("encoder", &encoder));
1213            }
1214
1215            sp<AMessage> format = new AMessage;
1216
1217            if (nameIsType) {
1218                format->setString("mime", name.c_str());
1219                format->setInt32("encoder", encoder);
1220            } else {
1221                format->setString("componentName", name.c_str());
1222            }
1223
1224            mCodec->initiateAllocateComponent(format);
1225            break;
1226        }
1227
1228        case kWhatSetCallback:
1229        {
1230            uint32_t replyID;
1231            CHECK(msg->senderAwaitsResponse(&replyID));
1232
1233            if (mState == UNINITIALIZED
1234                    || mState == INITIALIZING
1235                    || isExecuting()) {
1236                // callback can't be set after codec is executing,
1237                // or before it's initialized (as the callback
1238                // will be cleared when it goes to INITIALIZED)
1239                PostReplyWithError(replyID, INVALID_OPERATION);
1240                break;
1241            }
1242
1243            sp<AMessage> callback;
1244            CHECK(msg->findMessage("callback", &callback));
1245
1246            mCallback = callback;
1247
1248            if (mCallback != NULL) {
1249                ALOGI("MediaCodec will operate in async mode");
1250                mFlags |= kFlagIsAsync;
1251            } else {
1252                mFlags &= ~kFlagIsAsync;
1253            }
1254
1255            sp<AMessage> response = new AMessage;
1256            response->postReply(replyID);
1257            break;
1258        }
1259
1260        case kWhatConfigure:
1261        {
1262            uint32_t replyID;
1263            CHECK(msg->senderAwaitsResponse(&replyID));
1264
1265            if (mState != INITIALIZED) {
1266                PostReplyWithError(replyID, INVALID_OPERATION);
1267                break;
1268            }
1269
1270            sp<RefBase> obj;
1271            if (!msg->findObject("native-window", &obj)) {
1272                obj.clear();
1273            }
1274
1275            sp<AMessage> format;
1276            CHECK(msg->findMessage("format", &format));
1277
1278            if (obj != NULL) {
1279                format->setObject("native-window", obj);
1280
1281                status_t err = setNativeWindow(
1282                    static_cast<NativeWindowWrapper *>(obj.get())
1283                        ->getSurfaceTextureClient());
1284
1285                if (err != OK) {
1286                    PostReplyWithError(replyID, err);
1287                    break;
1288                }
1289            } else {
1290                setNativeWindow(NULL);
1291            }
1292
1293            mReplyID = replyID;
1294            setState(CONFIGURING);
1295
1296            void *crypto;
1297            if (!msg->findPointer("crypto", &crypto)) {
1298                crypto = NULL;
1299            }
1300
1301            mCrypto = static_cast<ICrypto *>(crypto);
1302
1303            uint32_t flags;
1304            CHECK(msg->findInt32("flags", (int32_t *)&flags));
1305
1306            if (flags & CONFIGURE_FLAG_ENCODE) {
1307                format->setInt32("encoder", true);
1308                mFlags |= kFlagIsEncoder;
1309            }
1310
1311            extractCSD(format);
1312
1313            mCodec->initiateConfigureComponent(format);
1314            break;
1315        }
1316
1317        case kWhatCreateInputSurface:
1318        {
1319            uint32_t replyID;
1320            CHECK(msg->senderAwaitsResponse(&replyID));
1321
1322            // Must be configured, but can't have been started yet.
1323            if (mState != CONFIGURED) {
1324                PostReplyWithError(replyID, INVALID_OPERATION);
1325                break;
1326            }
1327
1328            mReplyID = replyID;
1329            mCodec->initiateCreateInputSurface();
1330            break;
1331        }
1332
1333        case kWhatStart:
1334        {
1335            uint32_t replyID;
1336            CHECK(msg->senderAwaitsResponse(&replyID));
1337
1338            if (mState == FLUSHED) {
1339                setState(STARTED);
1340                mCodec->signalResume();
1341                PostReplyWithError(replyID, OK);
1342                break;
1343            } else if (mState != CONFIGURED) {
1344                PostReplyWithError(replyID, INVALID_OPERATION);
1345                break;
1346            }
1347
1348            mReplyID = replyID;
1349            setState(STARTING);
1350
1351            mCodec->initiateStart();
1352            break;
1353        }
1354
1355        case kWhatStop:
1356        case kWhatRelease:
1357        {
1358            State targetState =
1359                (msg->what() == kWhatStop) ? INITIALIZED : UNINITIALIZED;
1360
1361            uint32_t replyID;
1362            CHECK(msg->senderAwaitsResponse(&replyID));
1363
1364            if (!((mFlags & kFlagIsComponentAllocated) && targetState == UNINITIALIZED) // See 1
1365                    && mState != INITIALIZED
1366                    && mState != CONFIGURED && !isExecuting()) {
1367                // 1) Permit release to shut down the component if allocated.
1368                //
1369                // 2) We may be in "UNINITIALIZED" state already and
1370                // also shutdown the encoder/decoder without the
1371                // client being aware of this if media server died while
1372                // we were being stopped. The client would assume that
1373                // after stop() returned, it would be safe to call release()
1374                // and it should be in this case, no harm to allow a release()
1375                // if we're already uninitialized.
1376                sp<AMessage> response = new AMessage;
1377                status_t err = mState == targetState ? OK : INVALID_OPERATION;
1378                response->setInt32("err", err);
1379                if (err == OK && targetState == UNINITIALIZED) {
1380                    mComponentName.clear();
1381                }
1382                response->postReply(replyID);
1383                break;
1384            }
1385
1386            if (mFlags & kFlagSawMediaServerDie) {
1387                // It's dead, Jim. Don't expect initiateShutdown to yield
1388                // any useful results now...
1389                setState(UNINITIALIZED);
1390                if (targetState == UNINITIALIZED) {
1391                    mComponentName.clear();
1392                }
1393                (new AMessage)->postReply(replyID);
1394                break;
1395            }
1396
1397            mReplyID = replyID;
1398            setState(msg->what() == kWhatStop ? STOPPING : RELEASING);
1399
1400            mCodec->initiateShutdown(
1401                    msg->what() == kWhatStop /* keepComponentAllocated */);
1402
1403            returnBuffersToCodec();
1404            break;
1405        }
1406
1407        case kWhatDequeueInputBuffer:
1408        {
1409            uint32_t replyID;
1410            CHECK(msg->senderAwaitsResponse(&replyID));
1411
1412            if (mFlags & kFlagIsAsync) {
1413                ALOGE("dequeueOutputBuffer can't be used in async mode");
1414                PostReplyWithError(replyID, INVALID_OPERATION);
1415                break;
1416            }
1417
1418            if (mHaveInputSurface) {
1419                ALOGE("dequeueInputBuffer can't be used with input surface");
1420                PostReplyWithError(replyID, INVALID_OPERATION);
1421                break;
1422            }
1423
1424            if (handleDequeueInputBuffer(replyID, true /* new request */)) {
1425                break;
1426            }
1427
1428            int64_t timeoutUs;
1429            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1430
1431            if (timeoutUs == 0ll) {
1432                PostReplyWithError(replyID, -EAGAIN);
1433                break;
1434            }
1435
1436            mFlags |= kFlagDequeueInputPending;
1437            mDequeueInputReplyID = replyID;
1438
1439            if (timeoutUs > 0ll) {
1440                sp<AMessage> timeoutMsg =
1441                    new AMessage(kWhatDequeueInputTimedOut, id());
1442                timeoutMsg->setInt32(
1443                        "generation", ++mDequeueInputTimeoutGeneration);
1444                timeoutMsg->post(timeoutUs);
1445            }
1446            break;
1447        }
1448
1449        case kWhatDequeueInputTimedOut:
1450        {
1451            int32_t generation;
1452            CHECK(msg->findInt32("generation", &generation));
1453
1454            if (generation != mDequeueInputTimeoutGeneration) {
1455                // Obsolete
1456                break;
1457            }
1458
1459            CHECK(mFlags & kFlagDequeueInputPending);
1460
1461            PostReplyWithError(mDequeueInputReplyID, -EAGAIN);
1462
1463            mFlags &= ~kFlagDequeueInputPending;
1464            mDequeueInputReplyID = 0;
1465            break;
1466        }
1467
1468        case kWhatQueueInputBuffer:
1469        {
1470            uint32_t replyID;
1471            CHECK(msg->senderAwaitsResponse(&replyID));
1472
1473            if (!isExecuting()) {
1474                PostReplyWithError(replyID, INVALID_OPERATION);
1475                break;
1476            } else if (mFlags & kFlagStickyError) {
1477                PostReplyWithError(replyID, getStickyError());
1478                break;
1479            }
1480
1481            status_t err = onQueueInputBuffer(msg);
1482
1483            PostReplyWithError(replyID, err);
1484            break;
1485        }
1486
1487        case kWhatDequeueOutputBuffer:
1488        {
1489            uint32_t replyID;
1490            CHECK(msg->senderAwaitsResponse(&replyID));
1491
1492            if (mFlags & kFlagIsAsync) {
1493                ALOGE("dequeueOutputBuffer can't be used in async mode");
1494                PostReplyWithError(replyID, INVALID_OPERATION);
1495                break;
1496            }
1497
1498            if (handleDequeueOutputBuffer(replyID, true /* new request */)) {
1499                break;
1500            }
1501
1502            int64_t timeoutUs;
1503            CHECK(msg->findInt64("timeoutUs", &timeoutUs));
1504
1505            if (timeoutUs == 0ll) {
1506                PostReplyWithError(replyID, -EAGAIN);
1507                break;
1508            }
1509
1510            mFlags |= kFlagDequeueOutputPending;
1511            mDequeueOutputReplyID = replyID;
1512
1513            if (timeoutUs > 0ll) {
1514                sp<AMessage> timeoutMsg =
1515                    new AMessage(kWhatDequeueOutputTimedOut, id());
1516                timeoutMsg->setInt32(
1517                        "generation", ++mDequeueOutputTimeoutGeneration);
1518                timeoutMsg->post(timeoutUs);
1519            }
1520            break;
1521        }
1522
1523        case kWhatDequeueOutputTimedOut:
1524        {
1525            int32_t generation;
1526            CHECK(msg->findInt32("generation", &generation));
1527
1528            if (generation != mDequeueOutputTimeoutGeneration) {
1529                // Obsolete
1530                break;
1531            }
1532
1533            CHECK(mFlags & kFlagDequeueOutputPending);
1534
1535            PostReplyWithError(mDequeueOutputReplyID, -EAGAIN);
1536
1537            mFlags &= ~kFlagDequeueOutputPending;
1538            mDequeueOutputReplyID = 0;
1539            break;
1540        }
1541
1542        case kWhatReleaseOutputBuffer:
1543        {
1544            uint32_t replyID;
1545            CHECK(msg->senderAwaitsResponse(&replyID));
1546
1547            if (!isExecuting()) {
1548                PostReplyWithError(replyID, INVALID_OPERATION);
1549                break;
1550            } else if (mFlags & kFlagStickyError) {
1551                PostReplyWithError(replyID, getStickyError());
1552                break;
1553            }
1554
1555            status_t err = onReleaseOutputBuffer(msg);
1556
1557            PostReplyWithError(replyID, err);
1558            break;
1559        }
1560
1561        case kWhatSignalEndOfInputStream:
1562        {
1563            uint32_t replyID;
1564            CHECK(msg->senderAwaitsResponse(&replyID));
1565
1566            if (!isExecuting()) {
1567                PostReplyWithError(replyID, INVALID_OPERATION);
1568                break;
1569            } else if (mFlags & kFlagStickyError) {
1570                PostReplyWithError(replyID, getStickyError());
1571                break;
1572            }
1573
1574            mReplyID = replyID;
1575            mCodec->signalEndOfInputStream();
1576            break;
1577        }
1578
1579        case kWhatGetBuffers:
1580        {
1581            uint32_t replyID;
1582            CHECK(msg->senderAwaitsResponse(&replyID));
1583
1584            if (!isExecuting() || (mFlags & kFlagIsAsync)) {
1585                PostReplyWithError(replyID, INVALID_OPERATION);
1586                break;
1587            } else if (mFlags & kFlagStickyError) {
1588                PostReplyWithError(replyID, getStickyError());
1589                break;
1590            }
1591
1592            int32_t portIndex;
1593            CHECK(msg->findInt32("portIndex", &portIndex));
1594
1595            Vector<sp<ABuffer> > *dstBuffers;
1596            CHECK(msg->findPointer("buffers", (void **)&dstBuffers));
1597
1598            dstBuffers->clear();
1599            const Vector<BufferInfo> &srcBuffers = mPortBuffers[portIndex];
1600
1601            for (size_t i = 0; i < srcBuffers.size(); ++i) {
1602                const BufferInfo &info = srcBuffers.itemAt(i);
1603
1604                dstBuffers->push_back(
1605                        (portIndex == kPortIndexInput && mCrypto != NULL)
1606                                ? info.mEncryptedData : info.mData);
1607            }
1608
1609            (new AMessage)->postReply(replyID);
1610            break;
1611        }
1612
1613        case kWhatFlush:
1614        {
1615            uint32_t replyID;
1616            CHECK(msg->senderAwaitsResponse(&replyID));
1617
1618            if (!isExecuting()) {
1619                PostReplyWithError(replyID, INVALID_OPERATION);
1620                break;
1621            } else if (mFlags & kFlagStickyError) {
1622                PostReplyWithError(replyID, getStickyError());
1623                break;
1624            }
1625
1626            mReplyID = replyID;
1627            // TODO: skip flushing if already FLUSHED
1628            setState(FLUSHING);
1629
1630            mCodec->signalFlush();
1631            returnBuffersToCodec();
1632            break;
1633        }
1634
1635        case kWhatGetInputFormat:
1636        case kWhatGetOutputFormat:
1637        {
1638            sp<AMessage> format =
1639                (msg->what() == kWhatGetOutputFormat ? mOutputFormat : mInputFormat);
1640
1641            uint32_t replyID;
1642            CHECK(msg->senderAwaitsResponse(&replyID));
1643
1644            if ((mState != CONFIGURED && mState != STARTING &&
1645                 mState != STARTED && mState != FLUSHING &&
1646                 mState != FLUSHED)
1647                    || format == NULL) {
1648                PostReplyWithError(replyID, INVALID_OPERATION);
1649                break;
1650            } else if (mFlags & kFlagStickyError) {
1651                PostReplyWithError(replyID, getStickyError());
1652                break;
1653            }
1654
1655            sp<AMessage> response = new AMessage;
1656            response->setMessage("format", format);
1657            response->postReply(replyID);
1658            break;
1659        }
1660
1661        case kWhatRequestIDRFrame:
1662        {
1663            mCodec->signalRequestIDRFrame();
1664            break;
1665        }
1666
1667        case kWhatRequestActivityNotification:
1668        {
1669            CHECK(mActivityNotify == NULL);
1670            CHECK(msg->findMessage("notify", &mActivityNotify));
1671
1672            postActivityNotificationIfPossible();
1673            break;
1674        }
1675
1676        case kWhatGetName:
1677        {
1678            uint32_t replyID;
1679            CHECK(msg->senderAwaitsResponse(&replyID));
1680
1681            if (mComponentName.empty()) {
1682                PostReplyWithError(replyID, INVALID_OPERATION);
1683                break;
1684            }
1685
1686            sp<AMessage> response = new AMessage;
1687            response->setString("name", mComponentName.c_str());
1688            response->postReply(replyID);
1689            break;
1690        }
1691
1692        case kWhatSetParameters:
1693        {
1694            uint32_t replyID;
1695            CHECK(msg->senderAwaitsResponse(&replyID));
1696
1697            sp<AMessage> params;
1698            CHECK(msg->findMessage("params", &params));
1699
1700            status_t err = onSetParameters(params);
1701
1702            PostReplyWithError(replyID, err);
1703            break;
1704        }
1705
1706        default:
1707            TRESPASS();
1708    }
1709}
1710
1711void MediaCodec::extractCSD(const sp<AMessage> &format) {
1712    mCSD.clear();
1713
1714    size_t i = 0;
1715    for (;;) {
1716        sp<ABuffer> csd;
1717        if (!format->findBuffer(StringPrintf("csd-%u", i).c_str(), &csd)) {
1718            break;
1719        }
1720
1721        mCSD.push_back(csd);
1722        ++i;
1723    }
1724
1725    ALOGV("Found %zu pieces of codec specific data.", mCSD.size());
1726}
1727
1728status_t MediaCodec::queueCSDInputBuffer(size_t bufferIndex) {
1729    CHECK(!mCSD.empty());
1730
1731    const BufferInfo *info =
1732        &mPortBuffers[kPortIndexInput].itemAt(bufferIndex);
1733
1734    sp<ABuffer> csd = *mCSD.begin();
1735    mCSD.erase(mCSD.begin());
1736
1737    const sp<ABuffer> &codecInputData =
1738        (mCrypto != NULL) ? info->mEncryptedData : info->mData;
1739
1740    if (csd->size() > codecInputData->capacity()) {
1741        return -EINVAL;
1742    }
1743
1744    memcpy(codecInputData->data(), csd->data(), csd->size());
1745
1746    AString errorDetailMsg;
1747
1748    sp<AMessage> msg = new AMessage(kWhatQueueInputBuffer, id());
1749    msg->setSize("index", bufferIndex);
1750    msg->setSize("offset", 0);
1751    msg->setSize("size", csd->size());
1752    msg->setInt64("timeUs", 0ll);
1753    msg->setInt32("flags", BUFFER_FLAG_CODECCONFIG);
1754    msg->setPointer("errorDetailMsg", &errorDetailMsg);
1755
1756    return onQueueInputBuffer(msg);
1757}
1758
1759void MediaCodec::setState(State newState) {
1760    if (newState == INITIALIZED || newState == UNINITIALIZED) {
1761        delete mSoftRenderer;
1762        mSoftRenderer = NULL;
1763
1764        mCrypto.clear();
1765        setNativeWindow(NULL);
1766
1767        mInputFormat.clear();
1768        mOutputFormat.clear();
1769        mFlags &= ~kFlagOutputFormatChanged;
1770        mFlags &= ~kFlagOutputBuffersChanged;
1771        mFlags &= ~kFlagStickyError;
1772        mFlags &= ~kFlagIsEncoder;
1773        mFlags &= ~kFlagGatherCodecSpecificData;
1774        mFlags &= ~kFlagIsAsync;
1775        mStickyError = OK;
1776
1777        mActivityNotify.clear();
1778        mCallback.clear();
1779    }
1780
1781    if (newState == UNINITIALIZED) {
1782        // return any straggling buffers, e.g. if we got here on an error
1783        returnBuffersToCodec();
1784
1785        // The component is gone, mediaserver's probably back up already
1786        // but should definitely be back up should we try to instantiate
1787        // another component.. and the cycle continues.
1788        mFlags &= ~kFlagSawMediaServerDie;
1789    }
1790
1791    mState = newState;
1792
1793    cancelPendingDequeueOperations();
1794
1795    updateBatteryStat();
1796}
1797
1798void MediaCodec::returnBuffersToCodec() {
1799    returnBuffersToCodecOnPort(kPortIndexInput);
1800    returnBuffersToCodecOnPort(kPortIndexOutput);
1801}
1802
1803void MediaCodec::returnBuffersToCodecOnPort(int32_t portIndex) {
1804    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1805    Mutex::Autolock al(mBufferLock);
1806
1807    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1808
1809    for (size_t i = 0; i < buffers->size(); ++i) {
1810        BufferInfo *info = &buffers->editItemAt(i);
1811
1812        if (info->mNotify != NULL) {
1813            sp<AMessage> msg = info->mNotify;
1814            info->mNotify = NULL;
1815            info->mOwnedByClient = false;
1816
1817            if (portIndex == kPortIndexInput) {
1818                /* no error, just returning buffers */
1819                msg->setInt32("err", OK);
1820            }
1821            msg->post();
1822        }
1823    }
1824
1825    mAvailPortBuffers[portIndex].clear();
1826}
1827
1828size_t MediaCodec::updateBuffers(
1829        int32_t portIndex, const sp<AMessage> &msg) {
1830    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
1831
1832    uint32_t bufferID;
1833    CHECK(msg->findInt32("buffer-id", (int32_t*)&bufferID));
1834
1835    Vector<BufferInfo> *buffers = &mPortBuffers[portIndex];
1836
1837    for (size_t i = 0; i < buffers->size(); ++i) {
1838        BufferInfo *info = &buffers->editItemAt(i);
1839
1840        if (info->mBufferID == bufferID) {
1841            CHECK(info->mNotify == NULL);
1842            CHECK(msg->findMessage("reply", &info->mNotify));
1843
1844            info->mFormat =
1845                (portIndex == kPortIndexInput) ? mInputFormat : mOutputFormat;
1846            mAvailPortBuffers[portIndex].push_back(i);
1847
1848            return i;
1849        }
1850    }
1851
1852    TRESPASS();
1853
1854    return 0;
1855}
1856
1857status_t MediaCodec::onQueueInputBuffer(const sp<AMessage> &msg) {
1858    size_t index;
1859    size_t offset;
1860    size_t size;
1861    int64_t timeUs;
1862    uint32_t flags;
1863    CHECK(msg->findSize("index", &index));
1864    CHECK(msg->findSize("offset", &offset));
1865    CHECK(msg->findInt64("timeUs", &timeUs));
1866    CHECK(msg->findInt32("flags", (int32_t *)&flags));
1867
1868    const CryptoPlugin::SubSample *subSamples;
1869    size_t numSubSamples;
1870    const uint8_t *key;
1871    const uint8_t *iv;
1872    CryptoPlugin::Mode mode = CryptoPlugin::kMode_Unencrypted;
1873
1874    // We allow the simpler queueInputBuffer API to be used even in
1875    // secure mode, by fabricating a single unencrypted subSample.
1876    CryptoPlugin::SubSample ss;
1877
1878    if (msg->findSize("size", &size)) {
1879        if (mCrypto != NULL) {
1880            ss.mNumBytesOfClearData = size;
1881            ss.mNumBytesOfEncryptedData = 0;
1882
1883            subSamples = &ss;
1884            numSubSamples = 1;
1885            key = NULL;
1886            iv = NULL;
1887        }
1888    } else {
1889        if (mCrypto == NULL) {
1890            return -EINVAL;
1891        }
1892
1893        CHECK(msg->findPointer("subSamples", (void **)&subSamples));
1894        CHECK(msg->findSize("numSubSamples", &numSubSamples));
1895        CHECK(msg->findPointer("key", (void **)&key));
1896        CHECK(msg->findPointer("iv", (void **)&iv));
1897
1898        int32_t tmp;
1899        CHECK(msg->findInt32("mode", &tmp));
1900
1901        mode = (CryptoPlugin::Mode)tmp;
1902
1903        size = 0;
1904        for (size_t i = 0; i < numSubSamples; ++i) {
1905            size += subSamples[i].mNumBytesOfClearData;
1906            size += subSamples[i].mNumBytesOfEncryptedData;
1907        }
1908    }
1909
1910    if (index >= mPortBuffers[kPortIndexInput].size()) {
1911        return -ERANGE;
1912    }
1913
1914    BufferInfo *info = &mPortBuffers[kPortIndexInput].editItemAt(index);
1915
1916    if (info->mNotify == NULL || !info->mOwnedByClient) {
1917        return -EACCES;
1918    }
1919
1920    if (offset + size > info->mData->capacity()) {
1921        return -EINVAL;
1922    }
1923
1924    sp<AMessage> reply = info->mNotify;
1925    info->mData->setRange(offset, size);
1926    info->mData->meta()->setInt64("timeUs", timeUs);
1927
1928    if (flags & BUFFER_FLAG_EOS) {
1929        info->mData->meta()->setInt32("eos", true);
1930    }
1931
1932    if (flags & BUFFER_FLAG_CODECCONFIG) {
1933        info->mData->meta()->setInt32("csd", true);
1934    }
1935
1936    if (mCrypto != NULL) {
1937        if (size > info->mEncryptedData->capacity()) {
1938            return -ERANGE;
1939        }
1940
1941        AString *errorDetailMsg;
1942        CHECK(msg->findPointer("errorDetailMsg", (void **)&errorDetailMsg));
1943
1944        ssize_t result = mCrypto->decrypt(
1945                (mFlags & kFlagIsSecure) != 0,
1946                key,
1947                iv,
1948                mode,
1949                info->mEncryptedData->base() + offset,
1950                subSamples,
1951                numSubSamples,
1952                info->mData->base(),
1953                errorDetailMsg);
1954
1955        if (result < 0) {
1956            return result;
1957        }
1958
1959        info->mData->setRange(0, result);
1960    }
1961
1962    // synchronization boundary for getBufferAndFormat
1963    {
1964        Mutex::Autolock al(mBufferLock);
1965        info->mOwnedByClient = false;
1966    }
1967    reply->setBuffer("buffer", info->mData);
1968    reply->post();
1969
1970    info->mNotify = NULL;
1971
1972    return OK;
1973}
1974
1975status_t MediaCodec::onReleaseOutputBuffer(const sp<AMessage> &msg) {
1976    size_t index;
1977    CHECK(msg->findSize("index", &index));
1978
1979    int32_t render;
1980    if (!msg->findInt32("render", &render)) {
1981        render = 0;
1982    }
1983
1984    if (!isExecuting()) {
1985        return -EINVAL;
1986    }
1987
1988    if (index >= mPortBuffers[kPortIndexOutput].size()) {
1989        return -ERANGE;
1990    }
1991
1992    BufferInfo *info = &mPortBuffers[kPortIndexOutput].editItemAt(index);
1993
1994    if (info->mNotify == NULL || !info->mOwnedByClient) {
1995        return -EACCES;
1996    }
1997
1998    // synchronization boundary for getBufferAndFormat
1999    {
2000        Mutex::Autolock al(mBufferLock);
2001        info->mOwnedByClient = false;
2002    }
2003
2004    if (render && info->mData != NULL && info->mData->size() != 0) {
2005        info->mNotify->setInt32("render", true);
2006
2007        int64_t timestampNs = 0;
2008        if (msg->findInt64("timestampNs", &timestampNs)) {
2009            info->mNotify->setInt64("timestampNs", timestampNs);
2010        } else {
2011            // TODO: it seems like we should use the timestamp
2012            // in the (media)buffer as it potentially came from
2013            // an input surface, but we did not propagate it prior to
2014            // API 20.  Perhaps check for target SDK version.
2015#if 0
2016            if (info->mData->meta()->findInt64("timeUs", &timestampNs)) {
2017                ALOGV("using buffer PTS of %" PRId64, timestampNs);
2018                timestampNs *= 1000;
2019            }
2020#endif
2021        }
2022
2023        if (mSoftRenderer != NULL) {
2024            mSoftRenderer->render(
2025                    info->mData->data(), info->mData->size(),
2026                    timestampNs, NULL, info->mFormat);
2027        }
2028    }
2029
2030    info->mNotify->post();
2031    info->mNotify = NULL;
2032
2033    return OK;
2034}
2035
2036ssize_t MediaCodec::dequeuePortBuffer(int32_t portIndex) {
2037    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
2038
2039    List<size_t> *availBuffers = &mAvailPortBuffers[portIndex];
2040
2041    if (availBuffers->empty()) {
2042        return -EAGAIN;
2043    }
2044
2045    size_t index = *availBuffers->begin();
2046    availBuffers->erase(availBuffers->begin());
2047
2048    BufferInfo *info = &mPortBuffers[portIndex].editItemAt(index);
2049    CHECK(!info->mOwnedByClient);
2050    {
2051        Mutex::Autolock al(mBufferLock);
2052        info->mOwnedByClient = true;
2053
2054        // set image-data
2055        if (info->mFormat != NULL) {
2056            sp<ABuffer> imageData;
2057            if (info->mFormat->findBuffer("image-data", &imageData)) {
2058                info->mData->meta()->setBuffer("image-data", imageData);
2059            }
2060            int32_t left, top, right, bottom;
2061            if (info->mFormat->findRect("crop", &left, &top, &right, &bottom)) {
2062                info->mData->meta()->setRect("crop-rect", left, top, right, bottom);
2063            }
2064        }
2065    }
2066
2067    return index;
2068}
2069
2070status_t MediaCodec::setNativeWindow(
2071        const sp<Surface> &surfaceTextureClient) {
2072    status_t err;
2073
2074    if (mNativeWindow != NULL) {
2075        err = native_window_api_disconnect(
2076                mNativeWindow.get(), NATIVE_WINDOW_API_MEDIA);
2077
2078        if (err != OK) {
2079            ALOGW("native_window_api_disconnect returned an error: %s (%d)",
2080                    strerror(-err), err);
2081        }
2082
2083        mNativeWindow.clear();
2084    }
2085
2086    if (surfaceTextureClient != NULL) {
2087        err = native_window_api_connect(
2088                surfaceTextureClient.get(), NATIVE_WINDOW_API_MEDIA);
2089
2090        if (err != OK) {
2091            ALOGE("native_window_api_connect returned an error: %s (%d)",
2092                    strerror(-err), err);
2093
2094            return err;
2095        }
2096
2097        mNativeWindow = surfaceTextureClient;
2098    }
2099
2100    return OK;
2101}
2102
2103void MediaCodec::onInputBufferAvailable() {
2104    int32_t index;
2105    while ((index = dequeuePortBuffer(kPortIndexInput)) >= 0) {
2106        sp<AMessage> msg = mCallback->dup();
2107        msg->setInt32("callbackID", CB_INPUT_AVAILABLE);
2108        msg->setInt32("index", index);
2109        msg->post();
2110    }
2111}
2112
2113void MediaCodec::onOutputBufferAvailable() {
2114    int32_t index;
2115    while ((index = dequeuePortBuffer(kPortIndexOutput)) >= 0) {
2116        const sp<ABuffer> &buffer =
2117            mPortBuffers[kPortIndexOutput].itemAt(index).mData;
2118        sp<AMessage> msg = mCallback->dup();
2119        msg->setInt32("callbackID", CB_OUTPUT_AVAILABLE);
2120        msg->setInt32("index", index);
2121        msg->setSize("offset", buffer->offset());
2122        msg->setSize("size", buffer->size());
2123
2124        int64_t timeUs;
2125        CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2126
2127        msg->setInt64("timeUs", timeUs);
2128
2129        int32_t omxFlags;
2130        CHECK(buffer->meta()->findInt32("omxFlags", &omxFlags));
2131
2132        uint32_t flags = 0;
2133        if (omxFlags & OMX_BUFFERFLAG_SYNCFRAME) {
2134            flags |= BUFFER_FLAG_SYNCFRAME;
2135        }
2136        if (omxFlags & OMX_BUFFERFLAG_CODECCONFIG) {
2137            flags |= BUFFER_FLAG_CODECCONFIG;
2138        }
2139        if (omxFlags & OMX_BUFFERFLAG_EOS) {
2140            flags |= BUFFER_FLAG_EOS;
2141        }
2142
2143        msg->setInt32("flags", flags);
2144
2145        msg->post();
2146    }
2147}
2148
2149void MediaCodec::onError(status_t err, int32_t actionCode, const char *detail) {
2150    if (mCallback != NULL) {
2151        sp<AMessage> msg = mCallback->dup();
2152        msg->setInt32("callbackID", CB_ERROR);
2153        msg->setInt32("err", err);
2154        msg->setInt32("actionCode", actionCode);
2155
2156        if (detail != NULL) {
2157            msg->setString("detail", detail);
2158        }
2159
2160        msg->post();
2161    }
2162}
2163
2164void MediaCodec::onOutputFormatChanged() {
2165    if (mCallback != NULL) {
2166        sp<AMessage> msg = mCallback->dup();
2167        msg->setInt32("callbackID", CB_OUTPUT_FORMAT_CHANGED);
2168        msg->setMessage("format", mOutputFormat);
2169        msg->post();
2170    }
2171}
2172
2173
2174void MediaCodec::postActivityNotificationIfPossible() {
2175    if (mActivityNotify == NULL) {
2176        return;
2177    }
2178
2179    bool isErrorOrOutputChanged =
2180            (mFlags & (kFlagStickyError
2181                    | kFlagOutputBuffersChanged
2182                    | kFlagOutputFormatChanged));
2183
2184    if (isErrorOrOutputChanged
2185            || !mAvailPortBuffers[kPortIndexInput].empty()
2186            || !mAvailPortBuffers[kPortIndexOutput].empty()) {
2187        mActivityNotify->setInt32("input-buffers",
2188                mAvailPortBuffers[kPortIndexInput].size());
2189
2190        if (isErrorOrOutputChanged) {
2191            // we want consumer to dequeue as many times as it can
2192            mActivityNotify->setInt32("output-buffers", INT32_MAX);
2193        } else {
2194            mActivityNotify->setInt32("output-buffers",
2195                    mAvailPortBuffers[kPortIndexOutput].size());
2196        }
2197        mActivityNotify->post();
2198        mActivityNotify.clear();
2199    }
2200}
2201
2202status_t MediaCodec::setParameters(const sp<AMessage> &params) {
2203    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
2204    msg->setMessage("params", params);
2205
2206    sp<AMessage> response;
2207    return PostAndAwaitResponse(msg, &response);
2208}
2209
2210status_t MediaCodec::onSetParameters(const sp<AMessage> &params) {
2211    mCodec->signalSetParameters(params);
2212
2213    return OK;
2214}
2215
2216status_t MediaCodec::amendOutputFormatWithCodecSpecificData(
2217        const sp<ABuffer> &buffer) {
2218    AString mime;
2219    CHECK(mOutputFormat->findString("mime", &mime));
2220
2221    if (!strcasecmp(mime.c_str(), MEDIA_MIMETYPE_VIDEO_AVC)) {
2222        // Codec specific data should be SPS and PPS in a single buffer,
2223        // each prefixed by a startcode (0x00 0x00 0x00 0x01).
2224        // We separate the two and put them into the output format
2225        // under the keys "csd-0" and "csd-1".
2226
2227        unsigned csdIndex = 0;
2228
2229        const uint8_t *data = buffer->data();
2230        size_t size = buffer->size();
2231
2232        const uint8_t *nalStart;
2233        size_t nalSize;
2234        while (getNextNALUnit(&data, &size, &nalStart, &nalSize, true) == OK) {
2235            sp<ABuffer> csd = new ABuffer(nalSize + 4);
2236            memcpy(csd->data(), "\x00\x00\x00\x01", 4);
2237            memcpy(csd->data() + 4, nalStart, nalSize);
2238
2239            mOutputFormat->setBuffer(
2240                    StringPrintf("csd-%u", csdIndex).c_str(), csd);
2241
2242            ++csdIndex;
2243        }
2244
2245        if (csdIndex != 2) {
2246            return ERROR_MALFORMED;
2247        }
2248    } else {
2249        // For everything else we just stash the codec specific data into
2250        // the output format as a single piece of csd under "csd-0".
2251        mOutputFormat->setBuffer("csd-0", buffer);
2252    }
2253
2254    return OK;
2255}
2256
2257void MediaCodec::updateBatteryStat() {
2258    if (mState == CONFIGURED && !mBatteryStatNotified) {
2259        AString mime;
2260        CHECK(mOutputFormat != NULL &&
2261                mOutputFormat->findString("mime", &mime));
2262
2263        mIsVideo = mime.startsWithIgnoreCase("video/");
2264
2265        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2266
2267        if (mIsVideo) {
2268            notifier.noteStartVideo();
2269        } else {
2270            notifier.noteStartAudio();
2271        }
2272
2273        mBatteryStatNotified = true;
2274    } else if (mState == UNINITIALIZED && mBatteryStatNotified) {
2275        BatteryNotifier& notifier(BatteryNotifier::getInstance());
2276
2277        if (mIsVideo) {
2278            notifier.noteStopVideo();
2279        } else {
2280            notifier.noteStopAudio();
2281        }
2282
2283        mBatteryStatNotified = false;
2284    }
2285}
2286
2287}  // namespace android
2288