ACodec.cpp revision 3c09d025b60dedc605e893d630177bd54552f061 
1/*
2 * Copyright (C) 2010 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 "ACodec"
19
20#include <media/stagefright/ACodec.h>
21
22#include <binder/MemoryDealer.h>
23
24#include <media/stagefright/foundation/hexdump.h>
25#include <media/stagefright/foundation/ABuffer.h>
26#include <media/stagefright/foundation/ADebug.h>
27#include <media/stagefright/foundation/AMessage.h>
28
29#include <media/stagefright/BufferProducerWrapper.h>
30#include <media/stagefright/MediaCodecList.h>
31#include <media/stagefright/MediaDefs.h>
32#include <media/stagefright/NativeWindowWrapper.h>
33#include <media/stagefright/OMXClient.h>
34#include <media/stagefright/OMXCodec.h>
35
36#include <media/hardware/HardwareAPI.h>
37
38#include <OMX_Component.h>
39
40#include "include/avc_utils.h"
41
42namespace android {
43
44template<class T>
45static void InitOMXParams(T *params) {
46    params->nSize = sizeof(T);
47    params->nVersion.s.nVersionMajor = 1;
48    params->nVersion.s.nVersionMinor = 0;
49    params->nVersion.s.nRevision = 0;
50    params->nVersion.s.nStep = 0;
51}
52
53struct CodecObserver : public BnOMXObserver {
54    CodecObserver() {}
55
56    void setNotificationMessage(const sp<AMessage> &msg) {
57        mNotify = msg;
58    }
59
60    // from IOMXObserver
61    virtual void onMessage(const omx_message &omx_msg) {
62        sp<AMessage> msg = mNotify->dup();
63
64        msg->setInt32("type", omx_msg.type);
65        msg->setPointer("node", omx_msg.node);
66
67        switch (omx_msg.type) {
68            case omx_message::EVENT:
69            {
70                msg->setInt32("event", omx_msg.u.event_data.event);
71                msg->setInt32("data1", omx_msg.u.event_data.data1);
72                msg->setInt32("data2", omx_msg.u.event_data.data2);
73                break;
74            }
75
76            case omx_message::EMPTY_BUFFER_DONE:
77            {
78                msg->setPointer("buffer", omx_msg.u.buffer_data.buffer);
79                break;
80            }
81
82            case omx_message::FILL_BUFFER_DONE:
83            {
84                msg->setPointer(
85                        "buffer", omx_msg.u.extended_buffer_data.buffer);
86                msg->setInt32(
87                        "range_offset",
88                        omx_msg.u.extended_buffer_data.range_offset);
89                msg->setInt32(
90                        "range_length",
91                        omx_msg.u.extended_buffer_data.range_length);
92                msg->setInt32(
93                        "flags",
94                        omx_msg.u.extended_buffer_data.flags);
95                msg->setInt64(
96                        "timestamp",
97                        omx_msg.u.extended_buffer_data.timestamp);
98                msg->setPointer(
99                        "platform_private",
100                        omx_msg.u.extended_buffer_data.platform_private);
101                msg->setPointer(
102                        "data_ptr",
103                        omx_msg.u.extended_buffer_data.data_ptr);
104                break;
105            }
106
107            default:
108                TRESPASS();
109                break;
110        }
111
112        msg->post();
113    }
114
115protected:
116    virtual ~CodecObserver() {}
117
118private:
119    sp<AMessage> mNotify;
120
121    DISALLOW_EVIL_CONSTRUCTORS(CodecObserver);
122};
123
124////////////////////////////////////////////////////////////////////////////////
125
126struct ACodec::BaseState : public AState {
127    BaseState(ACodec *codec, const sp<AState> &parentState = NULL);
128
129protected:
130    enum PortMode {
131        KEEP_BUFFERS,
132        RESUBMIT_BUFFERS,
133        FREE_BUFFERS,
134    };
135
136    ACodec *mCodec;
137
138    virtual PortMode getPortMode(OMX_U32 portIndex);
139
140    virtual bool onMessageReceived(const sp<AMessage> &msg);
141
142    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
143
144    virtual void onOutputBufferDrained(const sp<AMessage> &msg);
145    virtual void onInputBufferFilled(const sp<AMessage> &msg);
146
147    void postFillThisBuffer(BufferInfo *info);
148
149private:
150    bool onOMXMessage(const sp<AMessage> &msg);
151
152    bool onOMXEmptyBufferDone(IOMX::buffer_id bufferID);
153
154    bool onOMXFillBufferDone(
155            IOMX::buffer_id bufferID,
156            size_t rangeOffset, size_t rangeLength,
157            OMX_U32 flags,
158            int64_t timeUs,
159            void *platformPrivate,
160            void *dataPtr);
161
162    void getMoreInputDataIfPossible();
163
164    DISALLOW_EVIL_CONSTRUCTORS(BaseState);
165};
166
167////////////////////////////////////////////////////////////////////////////////
168
169struct ACodec::UninitializedState : public ACodec::BaseState {
170    UninitializedState(ACodec *codec);
171
172protected:
173    virtual bool onMessageReceived(const sp<AMessage> &msg);
174    virtual void stateEntered();
175
176private:
177    void onSetup(const sp<AMessage> &msg);
178    bool onAllocateComponent(const sp<AMessage> &msg);
179
180    DISALLOW_EVIL_CONSTRUCTORS(UninitializedState);
181};
182
183////////////////////////////////////////////////////////////////////////////////
184
185struct ACodec::LoadedState : public ACodec::BaseState {
186    LoadedState(ACodec *codec);
187
188protected:
189    virtual bool onMessageReceived(const sp<AMessage> &msg);
190    virtual void stateEntered();
191
192private:
193    friend struct ACodec::UninitializedState;
194
195    bool onConfigureComponent(const sp<AMessage> &msg);
196    void onCreateInputSurface(const sp<AMessage> &msg);
197    void onStart();
198    void onShutdown(bool keepComponentAllocated);
199
200    DISALLOW_EVIL_CONSTRUCTORS(LoadedState);
201};
202
203////////////////////////////////////////////////////////////////////////////////
204
205struct ACodec::LoadedToIdleState : public ACodec::BaseState {
206    LoadedToIdleState(ACodec *codec);
207
208protected:
209    virtual bool onMessageReceived(const sp<AMessage> &msg);
210    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
211    virtual void stateEntered();
212
213private:
214    status_t allocateBuffers();
215
216    DISALLOW_EVIL_CONSTRUCTORS(LoadedToIdleState);
217};
218
219////////////////////////////////////////////////////////////////////////////////
220
221struct ACodec::IdleToExecutingState : public ACodec::BaseState {
222    IdleToExecutingState(ACodec *codec);
223
224protected:
225    virtual bool onMessageReceived(const sp<AMessage> &msg);
226    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
227    virtual void stateEntered();
228
229private:
230    DISALLOW_EVIL_CONSTRUCTORS(IdleToExecutingState);
231};
232
233////////////////////////////////////////////////////////////////////////////////
234
235struct ACodec::ExecutingState : public ACodec::BaseState {
236    ExecutingState(ACodec *codec);
237
238    void submitOutputBuffers();
239
240    // Submit output buffers to the decoder, submit input buffers to client
241    // to fill with data.
242    void resume();
243
244    // Returns true iff input and output buffers are in play.
245    bool active() const { return mActive; }
246
247protected:
248    virtual PortMode getPortMode(OMX_U32 portIndex);
249    virtual bool onMessageReceived(const sp<AMessage> &msg);
250    virtual void stateEntered();
251
252    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
253
254private:
255    bool mActive;
256
257    DISALLOW_EVIL_CONSTRUCTORS(ExecutingState);
258};
259
260////////////////////////////////////////////////////////////////////////////////
261
262struct ACodec::OutputPortSettingsChangedState : public ACodec::BaseState {
263    OutputPortSettingsChangedState(ACodec *codec);
264
265protected:
266    virtual PortMode getPortMode(OMX_U32 portIndex);
267    virtual bool onMessageReceived(const sp<AMessage> &msg);
268    virtual void stateEntered();
269
270    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
271
272private:
273    DISALLOW_EVIL_CONSTRUCTORS(OutputPortSettingsChangedState);
274};
275
276////////////////////////////////////////////////////////////////////////////////
277
278struct ACodec::ExecutingToIdleState : public ACodec::BaseState {
279    ExecutingToIdleState(ACodec *codec);
280
281protected:
282    virtual bool onMessageReceived(const sp<AMessage> &msg);
283    virtual void stateEntered();
284
285    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
286
287    virtual void onOutputBufferDrained(const sp<AMessage> &msg);
288    virtual void onInputBufferFilled(const sp<AMessage> &msg);
289
290private:
291    void changeStateIfWeOwnAllBuffers();
292
293    bool mComponentNowIdle;
294
295    DISALLOW_EVIL_CONSTRUCTORS(ExecutingToIdleState);
296};
297
298////////////////////////////////////////////////////////////////////////////////
299
300struct ACodec::IdleToLoadedState : public ACodec::BaseState {
301    IdleToLoadedState(ACodec *codec);
302
303protected:
304    virtual bool onMessageReceived(const sp<AMessage> &msg);
305    virtual void stateEntered();
306
307    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
308
309private:
310    DISALLOW_EVIL_CONSTRUCTORS(IdleToLoadedState);
311};
312
313////////////////////////////////////////////////////////////////////////////////
314
315struct ACodec::FlushingState : public ACodec::BaseState {
316    FlushingState(ACodec *codec);
317
318protected:
319    virtual bool onMessageReceived(const sp<AMessage> &msg);
320    virtual void stateEntered();
321
322    virtual bool onOMXEvent(OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2);
323
324    virtual void onOutputBufferDrained(const sp<AMessage> &msg);
325    virtual void onInputBufferFilled(const sp<AMessage> &msg);
326
327private:
328    bool mFlushComplete[2];
329
330    void changeStateIfWeOwnAllBuffers();
331
332    DISALLOW_EVIL_CONSTRUCTORS(FlushingState);
333};
334
335////////////////////////////////////////////////////////////////////////////////
336
337ACodec::ACodec()
338    : mQuirks(0),
339      mNode(NULL),
340      mSentFormat(false),
341      mIsEncoder(false),
342      mShutdownInProgress(false),
343      mEncoderDelay(0),
344      mEncoderPadding(0),
345      mChannelMaskPresent(false),
346      mChannelMask(0) {
347    mUninitializedState = new UninitializedState(this);
348    mLoadedState = new LoadedState(this);
349    mLoadedToIdleState = new LoadedToIdleState(this);
350    mIdleToExecutingState = new IdleToExecutingState(this);
351    mExecutingState = new ExecutingState(this);
352
353    mOutputPortSettingsChangedState =
354        new OutputPortSettingsChangedState(this);
355
356    mExecutingToIdleState = new ExecutingToIdleState(this);
357    mIdleToLoadedState = new IdleToLoadedState(this);
358    mFlushingState = new FlushingState(this);
359
360    mPortEOS[kPortIndexInput] = mPortEOS[kPortIndexOutput] = false;
361    mInputEOSResult = OK;
362
363    changeState(mUninitializedState);
364}
365
366ACodec::~ACodec() {
367}
368
369void ACodec::setNotificationMessage(const sp<AMessage> &msg) {
370    mNotify = msg;
371}
372
373void ACodec::initiateSetup(const sp<AMessage> &msg) {
374    msg->setWhat(kWhatSetup);
375    msg->setTarget(id());
376    msg->post();
377}
378
379void ACodec::signalSetParameters(const sp<AMessage> &params) {
380    sp<AMessage> msg = new AMessage(kWhatSetParameters, id());
381    msg->setMessage("params", params);
382    msg->post();
383}
384
385void ACodec::initiateAllocateComponent(const sp<AMessage> &msg) {
386    msg->setWhat(kWhatAllocateComponent);
387    msg->setTarget(id());
388    msg->post();
389}
390
391void ACodec::initiateConfigureComponent(const sp<AMessage> &msg) {
392    msg->setWhat(kWhatConfigureComponent);
393    msg->setTarget(id());
394    msg->post();
395}
396
397void ACodec::initiateCreateInputSurface() {
398    (new AMessage(kWhatCreateInputSurface, id()))->post();
399}
400
401void ACodec::signalEndOfInputStream() {
402    (new AMessage(kWhatSignalEndOfInputStream, id()))->post();
403}
404
405void ACodec::initiateStart() {
406    (new AMessage(kWhatStart, id()))->post();
407}
408
409void ACodec::signalFlush() {
410    ALOGV("[%s] signalFlush", mComponentName.c_str());
411    (new AMessage(kWhatFlush, id()))->post();
412}
413
414void ACodec::signalResume() {
415    (new AMessage(kWhatResume, id()))->post();
416}
417
418void ACodec::initiateShutdown(bool keepComponentAllocated) {
419    sp<AMessage> msg = new AMessage(kWhatShutdown, id());
420    msg->setInt32("keepComponentAllocated", keepComponentAllocated);
421    msg->post();
422}
423
424void ACodec::signalRequestIDRFrame() {
425    (new AMessage(kWhatRequestIDRFrame, id()))->post();
426}
427
428status_t ACodec::allocateBuffersOnPort(OMX_U32 portIndex) {
429    CHECK(portIndex == kPortIndexInput || portIndex == kPortIndexOutput);
430
431    CHECK(mDealer[portIndex] == NULL);
432    CHECK(mBuffers[portIndex].isEmpty());
433
434    status_t err;
435    if (mNativeWindow != NULL && portIndex == kPortIndexOutput) {
436        err = allocateOutputBuffersFromNativeWindow();
437    } else {
438        OMX_PARAM_PORTDEFINITIONTYPE def;
439        InitOMXParams(&def);
440        def.nPortIndex = portIndex;
441
442        err = mOMX->getParameter(
443                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
444
445        if (err == OK) {
446            ALOGV("[%s] Allocating %lu buffers of size %lu on %s port",
447                    mComponentName.c_str(),
448                    def.nBufferCountActual, def.nBufferSize,
449                    portIndex == kPortIndexInput ? "input" : "output");
450
451            size_t totalSize = def.nBufferCountActual * def.nBufferSize;
452            mDealer[portIndex] = new MemoryDealer(totalSize, "ACodec");
453
454            for (OMX_U32 i = 0; i < def.nBufferCountActual; ++i) {
455                sp<IMemory> mem = mDealer[portIndex]->allocate(def.nBufferSize);
456                CHECK(mem.get() != NULL);
457
458                BufferInfo info;
459                info.mStatus = BufferInfo::OWNED_BY_US;
460
461                uint32_t requiresAllocateBufferBit =
462                    (portIndex == kPortIndexInput)
463                        ? OMXCodec::kRequiresAllocateBufferOnInputPorts
464                        : OMXCodec::kRequiresAllocateBufferOnOutputPorts;
465
466                if (portIndex == kPortIndexInput && (mFlags & kFlagIsSecure)) {
467                    mem.clear();
468
469                    void *ptr;
470                    err = mOMX->allocateBuffer(
471                            mNode, portIndex, def.nBufferSize, &info.mBufferID,
472                            &ptr);
473
474                    info.mData = new ABuffer(ptr, def.nBufferSize);
475                } else if (mQuirks & requiresAllocateBufferBit) {
476                    err = mOMX->allocateBufferWithBackup(
477                            mNode, portIndex, mem, &info.mBufferID);
478                } else {
479                    err = mOMX->useBuffer(mNode, portIndex, mem, &info.mBufferID);
480                }
481
482                if (mem != NULL) {
483                    info.mData = new ABuffer(mem->pointer(), def.nBufferSize);
484                }
485
486                mBuffers[portIndex].push(info);
487            }
488        }
489    }
490
491    if (err != OK) {
492        return err;
493    }
494
495    sp<AMessage> notify = mNotify->dup();
496    notify->setInt32("what", ACodec::kWhatBuffersAllocated);
497
498    notify->setInt32("portIndex", portIndex);
499
500    sp<PortDescription> desc = new PortDescription;
501
502    for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
503        const BufferInfo &info = mBuffers[portIndex][i];
504
505        desc->addBuffer(info.mBufferID, info.mData);
506    }
507
508    notify->setObject("portDesc", desc);
509    notify->post();
510
511    return OK;
512}
513
514status_t ACodec::allocateOutputBuffersFromNativeWindow() {
515    OMX_PARAM_PORTDEFINITIONTYPE def;
516    InitOMXParams(&def);
517    def.nPortIndex = kPortIndexOutput;
518
519    status_t err = mOMX->getParameter(
520            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
521
522    if (err != OK) {
523        return err;
524    }
525
526    err = native_window_set_buffers_geometry(
527            mNativeWindow.get(),
528            def.format.video.nFrameWidth,
529            def.format.video.nFrameHeight,
530            def.format.video.eColorFormat);
531
532    if (err != 0) {
533        ALOGE("native_window_set_buffers_geometry failed: %s (%d)",
534                strerror(-err), -err);
535        return err;
536    }
537
538    // Set up the native window.
539    OMX_U32 usage = 0;
540    err = mOMX->getGraphicBufferUsage(mNode, kPortIndexOutput, &usage);
541    if (err != 0) {
542        ALOGW("querying usage flags from OMX IL component failed: %d", err);
543        // XXX: Currently this error is logged, but not fatal.
544        usage = 0;
545    }
546
547    if (mFlags & kFlagIsSecure) {
548        usage |= GRALLOC_USAGE_PROTECTED;
549    }
550
551    // Make sure to check whether either Stagefright or the video decoder
552    // requested protected buffers.
553    if (usage & GRALLOC_USAGE_PROTECTED) {
554        // Verify that the ANativeWindow sends images directly to
555        // SurfaceFlinger.
556        int queuesToNativeWindow = 0;
557        err = mNativeWindow->query(
558                mNativeWindow.get(), NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER,
559                &queuesToNativeWindow);
560        if (err != 0) {
561            ALOGE("error authenticating native window: %d", err);
562            return err;
563        }
564        if (queuesToNativeWindow != 1) {
565            ALOGE("native window could not be authenticated");
566            return PERMISSION_DENIED;
567        }
568    }
569
570    err = native_window_set_usage(
571            mNativeWindow.get(),
572            usage | GRALLOC_USAGE_HW_TEXTURE | GRALLOC_USAGE_EXTERNAL_DISP);
573
574    if (err != 0) {
575        ALOGE("native_window_set_usage failed: %s (%d)", strerror(-err), -err);
576        return err;
577    }
578
579    int minUndequeuedBufs = 0;
580    err = mNativeWindow->query(
581            mNativeWindow.get(), NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
582            &minUndequeuedBufs);
583
584    if (err != 0) {
585        ALOGE("NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS query failed: %s (%d)",
586                strerror(-err), -err);
587        return err;
588    }
589
590    // XXX: Is this the right logic to use?  It's not clear to me what the OMX
591    // buffer counts refer to - how do they account for the renderer holding on
592    // to buffers?
593    if (def.nBufferCountActual < def.nBufferCountMin + minUndequeuedBufs) {
594        OMX_U32 newBufferCount = def.nBufferCountMin + minUndequeuedBufs;
595        def.nBufferCountActual = newBufferCount;
596        err = mOMX->setParameter(
597                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
598
599        if (err != OK) {
600            ALOGE("[%s] setting nBufferCountActual to %lu failed: %d",
601                    mComponentName.c_str(), newBufferCount, err);
602            return err;
603        }
604    }
605
606    err = native_window_set_buffer_count(
607            mNativeWindow.get(), def.nBufferCountActual);
608
609    if (err != 0) {
610        ALOGE("native_window_set_buffer_count failed: %s (%d)", strerror(-err),
611                -err);
612        return err;
613    }
614
615    ALOGV("[%s] Allocating %lu buffers from a native window of size %lu on "
616         "output port",
617         mComponentName.c_str(), def.nBufferCountActual, def.nBufferSize);
618
619    // Dequeue buffers and send them to OMX
620    for (OMX_U32 i = 0; i < def.nBufferCountActual; i++) {
621        ANativeWindowBuffer *buf;
622        err = native_window_dequeue_buffer_and_wait(mNativeWindow.get(), &buf);
623        if (err != 0) {
624            ALOGE("dequeueBuffer failed: %s (%d)", strerror(-err), -err);
625            break;
626        }
627
628        sp<GraphicBuffer> graphicBuffer(new GraphicBuffer(buf, false));
629        BufferInfo info;
630        info.mStatus = BufferInfo::OWNED_BY_US;
631        info.mData = new ABuffer(NULL /* data */, def.nBufferSize /* capacity */);
632        info.mGraphicBuffer = graphicBuffer;
633        mBuffers[kPortIndexOutput].push(info);
634
635        IOMX::buffer_id bufferId;
636        err = mOMX->useGraphicBuffer(mNode, kPortIndexOutput, graphicBuffer,
637                &bufferId);
638        if (err != 0) {
639            ALOGE("registering GraphicBuffer %lu with OMX IL component failed: "
640                 "%d", i, err);
641            break;
642        }
643
644        mBuffers[kPortIndexOutput].editItemAt(i).mBufferID = bufferId;
645
646        ALOGV("[%s] Registered graphic buffer with ID %p (pointer = %p)",
647             mComponentName.c_str(),
648             bufferId, graphicBuffer.get());
649    }
650
651    OMX_U32 cancelStart;
652    OMX_U32 cancelEnd;
653
654    if (err != 0) {
655        // If an error occurred while dequeuing we need to cancel any buffers
656        // that were dequeued.
657        cancelStart = 0;
658        cancelEnd = mBuffers[kPortIndexOutput].size();
659    } else {
660        // Return the last two buffers to the native window.
661        cancelStart = def.nBufferCountActual - minUndequeuedBufs;
662        cancelEnd = def.nBufferCountActual;
663    }
664
665    for (OMX_U32 i = cancelStart; i < cancelEnd; i++) {
666        BufferInfo *info = &mBuffers[kPortIndexOutput].editItemAt(i);
667        cancelBufferToNativeWindow(info);
668    }
669
670    return err;
671}
672
673status_t ACodec::cancelBufferToNativeWindow(BufferInfo *info) {
674    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_US);
675
676    ALOGV("[%s] Calling cancelBuffer on buffer %p",
677         mComponentName.c_str(), info->mBufferID);
678
679    int err = mNativeWindow->cancelBuffer(
680        mNativeWindow.get(), info->mGraphicBuffer.get(), -1);
681
682    CHECK_EQ(err, 0);
683
684    info->mStatus = BufferInfo::OWNED_BY_NATIVE_WINDOW;
685
686    return OK;
687}
688
689ACodec::BufferInfo *ACodec::dequeueBufferFromNativeWindow() {
690    ANativeWindowBuffer *buf;
691    int fenceFd = -1;
692    if (native_window_dequeue_buffer_and_wait(mNativeWindow.get(), &buf) != 0) {
693        ALOGE("dequeueBuffer failed.");
694        return NULL;
695    }
696
697    for (size_t i = mBuffers[kPortIndexOutput].size(); i-- > 0;) {
698        BufferInfo *info =
699            &mBuffers[kPortIndexOutput].editItemAt(i);
700
701        if (info->mGraphicBuffer->handle == buf->handle) {
702            CHECK_EQ((int)info->mStatus,
703                     (int)BufferInfo::OWNED_BY_NATIVE_WINDOW);
704
705            info->mStatus = BufferInfo::OWNED_BY_US;
706
707            return info;
708        }
709    }
710
711    TRESPASS();
712
713    return NULL;
714}
715
716status_t ACodec::freeBuffersOnPort(OMX_U32 portIndex) {
717    for (size_t i = mBuffers[portIndex].size(); i-- > 0;) {
718        CHECK_EQ((status_t)OK, freeBuffer(portIndex, i));
719    }
720
721    mDealer[portIndex].clear();
722
723    return OK;
724}
725
726status_t ACodec::freeOutputBuffersNotOwnedByComponent() {
727    for (size_t i = mBuffers[kPortIndexOutput].size(); i-- > 0;) {
728        BufferInfo *info =
729            &mBuffers[kPortIndexOutput].editItemAt(i);
730
731        if (info->mStatus !=
732                BufferInfo::OWNED_BY_COMPONENT) {
733            // We shouldn't have sent out any buffers to the client at this
734            // point.
735            CHECK_NE((int)info->mStatus, (int)BufferInfo::OWNED_BY_DOWNSTREAM);
736
737            CHECK_EQ((status_t)OK, freeBuffer(kPortIndexOutput, i));
738        }
739    }
740
741    return OK;
742}
743
744status_t ACodec::freeBuffer(OMX_U32 portIndex, size_t i) {
745    BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
746
747    CHECK(info->mStatus == BufferInfo::OWNED_BY_US
748            || info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW);
749
750    if (portIndex == kPortIndexOutput && mNativeWindow != NULL
751            && info->mStatus == BufferInfo::OWNED_BY_US) {
752        CHECK_EQ((status_t)OK, cancelBufferToNativeWindow(info));
753    }
754
755    CHECK_EQ(mOMX->freeBuffer(
756                mNode, portIndex, info->mBufferID),
757             (status_t)OK);
758
759    mBuffers[portIndex].removeAt(i);
760
761    return OK;
762}
763
764ACodec::BufferInfo *ACodec::findBufferByID(
765        uint32_t portIndex, IOMX::buffer_id bufferID,
766        ssize_t *index) {
767    for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
768        BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
769
770        if (info->mBufferID == bufferID) {
771            if (index != NULL) {
772                *index = i;
773            }
774            return info;
775        }
776    }
777
778    TRESPASS();
779
780    return NULL;
781}
782
783status_t ACodec::setComponentRole(
784        bool isEncoder, const char *mime) {
785    struct MimeToRole {
786        const char *mime;
787        const char *decoderRole;
788        const char *encoderRole;
789    };
790
791    static const MimeToRole kMimeToRole[] = {
792        { MEDIA_MIMETYPE_AUDIO_MPEG,
793            "audio_decoder.mp3", "audio_encoder.mp3" },
794        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_I,
795            "audio_decoder.mp1", "audio_encoder.mp1" },
796        { MEDIA_MIMETYPE_AUDIO_MPEG_LAYER_II,
797            "audio_decoder.mp2", "audio_encoder.mp2" },
798        { MEDIA_MIMETYPE_AUDIO_AMR_NB,
799            "audio_decoder.amrnb", "audio_encoder.amrnb" },
800        { MEDIA_MIMETYPE_AUDIO_AMR_WB,
801            "audio_decoder.amrwb", "audio_encoder.amrwb" },
802        { MEDIA_MIMETYPE_AUDIO_AAC,
803            "audio_decoder.aac", "audio_encoder.aac" },
804        { MEDIA_MIMETYPE_AUDIO_VORBIS,
805            "audio_decoder.vorbis", "audio_encoder.vorbis" },
806        { MEDIA_MIMETYPE_AUDIO_G711_MLAW,
807            "audio_decoder.g711mlaw", "audio_encoder.g711mlaw" },
808        { MEDIA_MIMETYPE_AUDIO_G711_ALAW,
809            "audio_decoder.g711alaw", "audio_encoder.g711alaw" },
810        { MEDIA_MIMETYPE_VIDEO_AVC,
811            "video_decoder.avc", "video_encoder.avc" },
812        { MEDIA_MIMETYPE_VIDEO_MPEG4,
813            "video_decoder.mpeg4", "video_encoder.mpeg4" },
814        { MEDIA_MIMETYPE_VIDEO_H263,
815            "video_decoder.h263", "video_encoder.h263" },
816        { MEDIA_MIMETYPE_VIDEO_VPX,
817            "video_decoder.vpx", "video_encoder.vpx" },
818        { MEDIA_MIMETYPE_AUDIO_RAW,
819            "audio_decoder.raw", "audio_encoder.raw" },
820        { MEDIA_MIMETYPE_AUDIO_FLAC,
821            "audio_decoder.flac", "audio_encoder.flac" },
822        { MEDIA_MIMETYPE_AUDIO_MSGSM,
823            "audio_decoder.gsm", "audio_encoder.gsm" },
824    };
825
826    static const size_t kNumMimeToRole =
827        sizeof(kMimeToRole) / sizeof(kMimeToRole[0]);
828
829    size_t i;
830    for (i = 0; i < kNumMimeToRole; ++i) {
831        if (!strcasecmp(mime, kMimeToRole[i].mime)) {
832            break;
833        }
834    }
835
836    if (i == kNumMimeToRole) {
837        return ERROR_UNSUPPORTED;
838    }
839
840    const char *role =
841        isEncoder ? kMimeToRole[i].encoderRole
842                  : kMimeToRole[i].decoderRole;
843
844    if (role != NULL) {
845        OMX_PARAM_COMPONENTROLETYPE roleParams;
846        InitOMXParams(&roleParams);
847
848        strncpy((char *)roleParams.cRole,
849                role, OMX_MAX_STRINGNAME_SIZE - 1);
850
851        roleParams.cRole[OMX_MAX_STRINGNAME_SIZE - 1] = '\0';
852
853        status_t err = mOMX->setParameter(
854                mNode, OMX_IndexParamStandardComponentRole,
855                &roleParams, sizeof(roleParams));
856
857        if (err != OK) {
858            ALOGW("[%s] Failed to set standard component role '%s'.",
859                 mComponentName.c_str(), role);
860
861            return err;
862        }
863    }
864
865    return OK;
866}
867
868status_t ACodec::configureCodec(
869        const char *mime, const sp<AMessage> &msg) {
870    int32_t encoder;
871    if (!msg->findInt32("encoder", &encoder)) {
872        encoder = false;
873    }
874
875    mIsEncoder = encoder;
876
877    status_t err = setComponentRole(encoder /* isEncoder */, mime);
878
879    if (err != OK) {
880        return err;
881    }
882
883    int32_t bitRate = 0;
884    // FLAC encoder doesn't need a bitrate, other encoders do
885    if (encoder && strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_FLAC)
886            && !msg->findInt32("bitrate", &bitRate)) {
887        return INVALID_OPERATION;
888    }
889
890    int32_t storeMeta;
891    if (encoder
892            && msg->findInt32("store-metadata-in-buffers", &storeMeta)
893            && storeMeta != 0) {
894        err = mOMX->storeMetaDataInBuffers(mNode, kPortIndexInput, OMX_TRUE);
895
896        if (err != OK) {
897            ALOGE("[%s] storeMetaDataInBuffers failed w/ err %d",
898                  mComponentName.c_str(), err);
899
900            return err;
901        }
902    }
903
904    int32_t prependSPSPPS;
905    if (encoder
906            && msg->findInt32("prepend-sps-pps-to-idr-frames", &prependSPSPPS)
907            && prependSPSPPS != 0) {
908        OMX_INDEXTYPE index;
909        err = mOMX->getExtensionIndex(
910                mNode,
911                "OMX.google.android.index.prependSPSPPSToIDRFrames",
912                &index);
913
914        if (err == OK) {
915            PrependSPSPPSToIDRFramesParams params;
916            InitOMXParams(&params);
917            params.bEnable = OMX_TRUE;
918
919            err = mOMX->setParameter(
920                    mNode, index, &params, sizeof(params));
921        }
922
923        if (err != OK) {
924            ALOGE("Encoder could not be configured to emit SPS/PPS before "
925                  "IDR frames. (err %d)", err);
926
927            return err;
928        }
929    }
930
931    if (!strncasecmp(mime, "video/", 6)) {
932        if (encoder) {
933            err = setupVideoEncoder(mime, msg);
934        } else {
935            int32_t width, height;
936            if (!msg->findInt32("width", &width)
937                    || !msg->findInt32("height", &height)) {
938                err = INVALID_OPERATION;
939            } else {
940                err = setupVideoDecoder(mime, width, height);
941            }
942        }
943    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) {
944        int32_t numChannels, sampleRate;
945        if (!msg->findInt32("channel-count", &numChannels)
946                || !msg->findInt32("sample-rate", &sampleRate)) {
947            err = INVALID_OPERATION;
948        } else {
949            int32_t isADTS, aacProfile;
950            if (!msg->findInt32("is-adts", &isADTS)) {
951                isADTS = 0;
952            }
953            if (!msg->findInt32("aac-profile", &aacProfile)) {
954                aacProfile = OMX_AUDIO_AACObjectNull;
955            }
956
957            err = setupAACCodec(
958                    encoder, numChannels, sampleRate, bitRate, aacProfile,
959                    isADTS != 0);
960        }
961    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_NB)) {
962        err = setupAMRCodec(encoder, false /* isWAMR */, bitRate);
963    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AMR_WB)) {
964        err = setupAMRCodec(encoder, true /* isWAMR */, bitRate);
965    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_G711_ALAW)
966            || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_G711_MLAW)) {
967        // These are PCM-like formats with a fixed sample rate but
968        // a variable number of channels.
969
970        int32_t numChannels;
971        if (!msg->findInt32("channel-count", &numChannels)) {
972            err = INVALID_OPERATION;
973        } else {
974            err = setupG711Codec(encoder, numChannels);
975        }
976    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_FLAC)) {
977        int32_t numChannels, sampleRate, compressionLevel = -1;
978        if (encoder &&
979                (!msg->findInt32("channel-count", &numChannels)
980                        || !msg->findInt32("sample-rate", &sampleRate))) {
981            ALOGE("missing channel count or sample rate for FLAC encoder");
982            err = INVALID_OPERATION;
983        } else {
984            if (encoder) {
985                if (!msg->findInt32(
986                            "flac-compression-level", &compressionLevel)) {
987                    compressionLevel = 5;// default FLAC compression level
988                } else if (compressionLevel < 0) {
989                    ALOGW("compression level %d outside [0..8] range, "
990                          "using 0",
991                          compressionLevel);
992                    compressionLevel = 0;
993                } else if (compressionLevel > 8) {
994                    ALOGW("compression level %d outside [0..8] range, "
995                          "using 8",
996                          compressionLevel);
997                    compressionLevel = 8;
998                }
999            }
1000            err = setupFlacCodec(
1001                    encoder, numChannels, sampleRate, compressionLevel);
1002        }
1003    } else if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_RAW)) {
1004        int32_t numChannels, sampleRate;
1005        if (encoder
1006                || !msg->findInt32("channel-count", &numChannels)
1007                || !msg->findInt32("sample-rate", &sampleRate)) {
1008            err = INVALID_OPERATION;
1009        } else {
1010            err = setupRawAudioFormat(kPortIndexInput, sampleRate, numChannels);
1011        }
1012    }
1013
1014    if (err != OK) {
1015        return err;
1016    }
1017
1018    if (!msg->findInt32("encoder-delay", &mEncoderDelay)) {
1019        mEncoderDelay = 0;
1020    }
1021
1022    if (!msg->findInt32("encoder-padding", &mEncoderPadding)) {
1023        mEncoderPadding = 0;
1024    }
1025
1026    if (msg->findInt32("channel-mask", &mChannelMask)) {
1027        mChannelMaskPresent = true;
1028    } else {
1029        mChannelMaskPresent = false;
1030    }
1031
1032    int32_t maxInputSize;
1033    if (msg->findInt32("max-input-size", &maxInputSize)) {
1034        err = setMinBufferSize(kPortIndexInput, (size_t)maxInputSize);
1035    } else if (!strcmp("OMX.Nvidia.aac.decoder", mComponentName.c_str())) {
1036        err = setMinBufferSize(kPortIndexInput, 8192);  // XXX
1037    }
1038
1039    return err;
1040}
1041
1042status_t ACodec::setMinBufferSize(OMX_U32 portIndex, size_t size) {
1043    OMX_PARAM_PORTDEFINITIONTYPE def;
1044    InitOMXParams(&def);
1045    def.nPortIndex = portIndex;
1046
1047    status_t err = mOMX->getParameter(
1048            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1049
1050    if (err != OK) {
1051        return err;
1052    }
1053
1054    if (def.nBufferSize >= size) {
1055        return OK;
1056    }
1057
1058    def.nBufferSize = size;
1059
1060    err = mOMX->setParameter(
1061            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1062
1063    if (err != OK) {
1064        return err;
1065    }
1066
1067    err = mOMX->getParameter(
1068            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1069
1070    if (err != OK) {
1071        return err;
1072    }
1073
1074    CHECK(def.nBufferSize >= size);
1075
1076    return OK;
1077}
1078
1079status_t ACodec::selectAudioPortFormat(
1080        OMX_U32 portIndex, OMX_AUDIO_CODINGTYPE desiredFormat) {
1081    OMX_AUDIO_PARAM_PORTFORMATTYPE format;
1082    InitOMXParams(&format);
1083
1084    format.nPortIndex = portIndex;
1085    for (OMX_U32 index = 0;; ++index) {
1086        format.nIndex = index;
1087
1088        status_t err = mOMX->getParameter(
1089                mNode, OMX_IndexParamAudioPortFormat,
1090                &format, sizeof(format));
1091
1092        if (err != OK) {
1093            return err;
1094        }
1095
1096        if (format.eEncoding == desiredFormat) {
1097            break;
1098        }
1099    }
1100
1101    return mOMX->setParameter(
1102            mNode, OMX_IndexParamAudioPortFormat, &format, sizeof(format));
1103}
1104
1105status_t ACodec::setupAACCodec(
1106        bool encoder, int32_t numChannels, int32_t sampleRate,
1107        int32_t bitRate, int32_t aacProfile, bool isADTS) {
1108    if (encoder && isADTS) {
1109        return -EINVAL;
1110    }
1111
1112    status_t err = setupRawAudioFormat(
1113            encoder ? kPortIndexInput : kPortIndexOutput,
1114            sampleRate,
1115            numChannels);
1116
1117    if (err != OK) {
1118        return err;
1119    }
1120
1121    if (encoder) {
1122        err = selectAudioPortFormat(kPortIndexOutput, OMX_AUDIO_CodingAAC);
1123
1124        if (err != OK) {
1125            return err;
1126        }
1127
1128        OMX_PARAM_PORTDEFINITIONTYPE def;
1129        InitOMXParams(&def);
1130        def.nPortIndex = kPortIndexOutput;
1131
1132        err = mOMX->getParameter(
1133                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1134
1135        if (err != OK) {
1136            return err;
1137        }
1138
1139        def.format.audio.bFlagErrorConcealment = OMX_TRUE;
1140        def.format.audio.eEncoding = OMX_AUDIO_CodingAAC;
1141
1142        err = mOMX->setParameter(
1143                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1144
1145        if (err != OK) {
1146            return err;
1147        }
1148
1149        OMX_AUDIO_PARAM_AACPROFILETYPE profile;
1150        InitOMXParams(&profile);
1151        profile.nPortIndex = kPortIndexOutput;
1152
1153        err = mOMX->getParameter(
1154                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
1155
1156        if (err != OK) {
1157            return err;
1158        }
1159
1160        profile.nChannels = numChannels;
1161
1162        profile.eChannelMode =
1163            (numChannels == 1)
1164                ? OMX_AUDIO_ChannelModeMono: OMX_AUDIO_ChannelModeStereo;
1165
1166        profile.nSampleRate = sampleRate;
1167        profile.nBitRate = bitRate;
1168        profile.nAudioBandWidth = 0;
1169        profile.nFrameLength = 0;
1170        profile.nAACtools = OMX_AUDIO_AACToolAll;
1171        profile.nAACERtools = OMX_AUDIO_AACERNone;
1172        profile.eAACProfile = (OMX_AUDIO_AACPROFILETYPE) aacProfile;
1173        profile.eAACStreamFormat = OMX_AUDIO_AACStreamFormatMP4FF;
1174
1175        err = mOMX->setParameter(
1176                mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
1177
1178        if (err != OK) {
1179            return err;
1180        }
1181
1182        return err;
1183    }
1184
1185    OMX_AUDIO_PARAM_AACPROFILETYPE profile;
1186    InitOMXParams(&profile);
1187    profile.nPortIndex = kPortIndexInput;
1188
1189    err = mOMX->getParameter(
1190            mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
1191
1192    if (err != OK) {
1193        return err;
1194    }
1195
1196    profile.nChannels = numChannels;
1197    profile.nSampleRate = sampleRate;
1198
1199    profile.eAACStreamFormat =
1200        isADTS
1201            ? OMX_AUDIO_AACStreamFormatMP4ADTS
1202            : OMX_AUDIO_AACStreamFormatMP4FF;
1203
1204    return mOMX->setParameter(
1205            mNode, OMX_IndexParamAudioAac, &profile, sizeof(profile));
1206}
1207
1208static OMX_AUDIO_AMRBANDMODETYPE pickModeFromBitRate(
1209        bool isAMRWB, int32_t bps) {
1210    if (isAMRWB) {
1211        if (bps <= 6600) {
1212            return OMX_AUDIO_AMRBandModeWB0;
1213        } else if (bps <= 8850) {
1214            return OMX_AUDIO_AMRBandModeWB1;
1215        } else if (bps <= 12650) {
1216            return OMX_AUDIO_AMRBandModeWB2;
1217        } else if (bps <= 14250) {
1218            return OMX_AUDIO_AMRBandModeWB3;
1219        } else if (bps <= 15850) {
1220            return OMX_AUDIO_AMRBandModeWB4;
1221        } else if (bps <= 18250) {
1222            return OMX_AUDIO_AMRBandModeWB5;
1223        } else if (bps <= 19850) {
1224            return OMX_AUDIO_AMRBandModeWB6;
1225        } else if (bps <= 23050) {
1226            return OMX_AUDIO_AMRBandModeWB7;
1227        }
1228
1229        // 23850 bps
1230        return OMX_AUDIO_AMRBandModeWB8;
1231    } else {  // AMRNB
1232        if (bps <= 4750) {
1233            return OMX_AUDIO_AMRBandModeNB0;
1234        } else if (bps <= 5150) {
1235            return OMX_AUDIO_AMRBandModeNB1;
1236        } else if (bps <= 5900) {
1237            return OMX_AUDIO_AMRBandModeNB2;
1238        } else if (bps <= 6700) {
1239            return OMX_AUDIO_AMRBandModeNB3;
1240        } else if (bps <= 7400) {
1241            return OMX_AUDIO_AMRBandModeNB4;
1242        } else if (bps <= 7950) {
1243            return OMX_AUDIO_AMRBandModeNB5;
1244        } else if (bps <= 10200) {
1245            return OMX_AUDIO_AMRBandModeNB6;
1246        }
1247
1248        // 12200 bps
1249        return OMX_AUDIO_AMRBandModeNB7;
1250    }
1251}
1252
1253status_t ACodec::setupAMRCodec(bool encoder, bool isWAMR, int32_t bitrate) {
1254    OMX_AUDIO_PARAM_AMRTYPE def;
1255    InitOMXParams(&def);
1256    def.nPortIndex = encoder ? kPortIndexOutput : kPortIndexInput;
1257
1258    status_t err =
1259        mOMX->getParameter(mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
1260
1261    if (err != OK) {
1262        return err;
1263    }
1264
1265    def.eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
1266    def.eAMRBandMode = pickModeFromBitRate(isWAMR, bitrate);
1267
1268    err = mOMX->setParameter(
1269            mNode, OMX_IndexParamAudioAmr, &def, sizeof(def));
1270
1271    if (err != OK) {
1272        return err;
1273    }
1274
1275    return setupRawAudioFormat(
1276            encoder ? kPortIndexInput : kPortIndexOutput,
1277            isWAMR ? 16000 : 8000 /* sampleRate */,
1278            1 /* numChannels */);
1279}
1280
1281status_t ACodec::setupG711Codec(bool encoder, int32_t numChannels) {
1282    CHECK(!encoder);  // XXX TODO
1283
1284    return setupRawAudioFormat(
1285            kPortIndexInput, 8000 /* sampleRate */, numChannels);
1286}
1287
1288status_t ACodec::setupFlacCodec(
1289        bool encoder, int32_t numChannels, int32_t sampleRate, int32_t compressionLevel) {
1290
1291    if (encoder) {
1292        OMX_AUDIO_PARAM_FLACTYPE def;
1293        InitOMXParams(&def);
1294        def.nPortIndex = kPortIndexOutput;
1295
1296        // configure compression level
1297        status_t err = mOMX->getParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
1298        if (err != OK) {
1299            ALOGE("setupFlacCodec(): Error %d getting OMX_IndexParamAudioFlac parameter", err);
1300            return err;
1301        }
1302        def.nCompressionLevel = compressionLevel;
1303        err = mOMX->setParameter(mNode, OMX_IndexParamAudioFlac, &def, sizeof(def));
1304        if (err != OK) {
1305            ALOGE("setupFlacCodec(): Error %d setting OMX_IndexParamAudioFlac parameter", err);
1306            return err;
1307        }
1308    }
1309
1310    return setupRawAudioFormat(
1311            encoder ? kPortIndexInput : kPortIndexOutput,
1312            sampleRate,
1313            numChannels);
1314}
1315
1316status_t ACodec::setupRawAudioFormat(
1317        OMX_U32 portIndex, int32_t sampleRate, int32_t numChannels) {
1318    OMX_PARAM_PORTDEFINITIONTYPE def;
1319    InitOMXParams(&def);
1320    def.nPortIndex = portIndex;
1321
1322    status_t err = mOMX->getParameter(
1323            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1324
1325    if (err != OK) {
1326        return err;
1327    }
1328
1329    def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
1330
1331    err = mOMX->setParameter(
1332            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1333
1334    if (err != OK) {
1335        return err;
1336    }
1337
1338    OMX_AUDIO_PARAM_PCMMODETYPE pcmParams;
1339    InitOMXParams(&pcmParams);
1340    pcmParams.nPortIndex = portIndex;
1341
1342    err = mOMX->getParameter(
1343            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
1344
1345    if (err != OK) {
1346        return err;
1347    }
1348
1349    pcmParams.nChannels = numChannels;
1350    pcmParams.eNumData = OMX_NumericalDataSigned;
1351    pcmParams.bInterleaved = OMX_TRUE;
1352    pcmParams.nBitPerSample = 16;
1353    pcmParams.nSamplingRate = sampleRate;
1354    pcmParams.ePCMMode = OMX_AUDIO_PCMModeLinear;
1355
1356    if (getOMXChannelMapping(numChannels, pcmParams.eChannelMapping) != OK) {
1357        return OMX_ErrorNone;
1358    }
1359
1360    return mOMX->setParameter(
1361            mNode, OMX_IndexParamAudioPcm, &pcmParams, sizeof(pcmParams));
1362}
1363
1364status_t ACodec::setVideoPortFormatType(
1365        OMX_U32 portIndex,
1366        OMX_VIDEO_CODINGTYPE compressionFormat,
1367        OMX_COLOR_FORMATTYPE colorFormat) {
1368    OMX_VIDEO_PARAM_PORTFORMATTYPE format;
1369    InitOMXParams(&format);
1370    format.nPortIndex = portIndex;
1371    format.nIndex = 0;
1372    bool found = false;
1373
1374    OMX_U32 index = 0;
1375    for (;;) {
1376        format.nIndex = index;
1377        status_t err = mOMX->getParameter(
1378                mNode, OMX_IndexParamVideoPortFormat,
1379                &format, sizeof(format));
1380
1381        if (err != OK) {
1382            return err;
1383        }
1384
1385        // The following assertion is violated by TI's video decoder.
1386        // CHECK_EQ(format.nIndex, index);
1387
1388        if (!strcmp("OMX.TI.Video.encoder", mComponentName.c_str())) {
1389            if (portIndex == kPortIndexInput
1390                    && colorFormat == format.eColorFormat) {
1391                // eCompressionFormat does not seem right.
1392                found = true;
1393                break;
1394            }
1395            if (portIndex == kPortIndexOutput
1396                    && compressionFormat == format.eCompressionFormat) {
1397                // eColorFormat does not seem right.
1398                found = true;
1399                break;
1400            }
1401        }
1402
1403        if (format.eCompressionFormat == compressionFormat
1404            && format.eColorFormat == colorFormat) {
1405            found = true;
1406            break;
1407        }
1408
1409        ++index;
1410    }
1411
1412    if (!found) {
1413        return UNKNOWN_ERROR;
1414    }
1415
1416    status_t err = mOMX->setParameter(
1417            mNode, OMX_IndexParamVideoPortFormat,
1418            &format, sizeof(format));
1419
1420    return err;
1421}
1422
1423status_t ACodec::setSupportedOutputFormat() {
1424    OMX_VIDEO_PARAM_PORTFORMATTYPE format;
1425    InitOMXParams(&format);
1426    format.nPortIndex = kPortIndexOutput;
1427    format.nIndex = 0;
1428
1429    status_t err = mOMX->getParameter(
1430            mNode, OMX_IndexParamVideoPortFormat,
1431            &format, sizeof(format));
1432    CHECK_EQ(err, (status_t)OK);
1433    CHECK_EQ((int)format.eCompressionFormat, (int)OMX_VIDEO_CodingUnused);
1434
1435    return mOMX->setParameter(
1436            mNode, OMX_IndexParamVideoPortFormat,
1437            &format, sizeof(format));
1438}
1439
1440static status_t GetVideoCodingTypeFromMime(
1441        const char *mime, OMX_VIDEO_CODINGTYPE *codingType) {
1442    if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_AVC, mime)) {
1443        *codingType = OMX_VIDEO_CodingAVC;
1444    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG4, mime)) {
1445        *codingType = OMX_VIDEO_CodingMPEG4;
1446    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_H263, mime)) {
1447        *codingType = OMX_VIDEO_CodingH263;
1448    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_MPEG2, mime)) {
1449        *codingType = OMX_VIDEO_CodingMPEG2;
1450    } else if (!strcasecmp(MEDIA_MIMETYPE_VIDEO_VPX, mime)) {
1451        *codingType = OMX_VIDEO_CodingVPX;
1452    } else {
1453        *codingType = OMX_VIDEO_CodingUnused;
1454        return ERROR_UNSUPPORTED;
1455    }
1456
1457    return OK;
1458}
1459
1460status_t ACodec::setupVideoDecoder(
1461        const char *mime, int32_t width, int32_t height) {
1462    OMX_VIDEO_CODINGTYPE compressionFormat;
1463    status_t err = GetVideoCodingTypeFromMime(mime, &compressionFormat);
1464
1465    if (err != OK) {
1466        return err;
1467    }
1468
1469    err = setVideoPortFormatType(
1470            kPortIndexInput, compressionFormat, OMX_COLOR_FormatUnused);
1471
1472    if (err != OK) {
1473        return err;
1474    }
1475
1476    err = setSupportedOutputFormat();
1477
1478    if (err != OK) {
1479        return err;
1480    }
1481
1482    err = setVideoFormatOnPort(
1483            kPortIndexInput, width, height, compressionFormat);
1484
1485    if (err != OK) {
1486        return err;
1487    }
1488
1489    err = setVideoFormatOnPort(
1490            kPortIndexOutput, width, height, OMX_VIDEO_CodingUnused);
1491
1492    if (err != OK) {
1493        return err;
1494    }
1495
1496    return OK;
1497}
1498
1499status_t ACodec::setupVideoEncoder(const char *mime, const sp<AMessage> &msg) {
1500    int32_t tmp;
1501    if (!msg->findInt32("color-format", &tmp)) {
1502        return INVALID_OPERATION;
1503    }
1504
1505    OMX_COLOR_FORMATTYPE colorFormat =
1506        static_cast<OMX_COLOR_FORMATTYPE>(tmp);
1507
1508    status_t err = setVideoPortFormatType(
1509            kPortIndexInput, OMX_VIDEO_CodingUnused, colorFormat);
1510
1511    if (err != OK) {
1512        ALOGE("[%s] does not support color format %d",
1513              mComponentName.c_str(), colorFormat);
1514
1515        return err;
1516    }
1517
1518    /* Input port configuration */
1519
1520    OMX_PARAM_PORTDEFINITIONTYPE def;
1521    InitOMXParams(&def);
1522
1523    OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
1524
1525    def.nPortIndex = kPortIndexInput;
1526
1527    err = mOMX->getParameter(
1528            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1529
1530    if (err != OK) {
1531        return err;
1532    }
1533
1534    int32_t width, height, bitrate;
1535    if (!msg->findInt32("width", &width)
1536            || !msg->findInt32("height", &height)
1537            || !msg->findInt32("bitrate", &bitrate)) {
1538        return INVALID_OPERATION;
1539    }
1540
1541    video_def->nFrameWidth = width;
1542    video_def->nFrameHeight = height;
1543
1544    int32_t stride;
1545    if (!msg->findInt32("stride", &stride)) {
1546        stride = width;
1547    }
1548
1549    video_def->nStride = stride;
1550
1551    int32_t sliceHeight;
1552    if (!msg->findInt32("slice-height", &sliceHeight)) {
1553        sliceHeight = height;
1554    }
1555
1556    video_def->nSliceHeight = sliceHeight;
1557
1558    def.nBufferSize = (video_def->nStride * video_def->nSliceHeight * 3) / 2;
1559
1560    float frameRate;
1561    if (!msg->findFloat("frame-rate", &frameRate)) {
1562        int32_t tmp;
1563        if (!msg->findInt32("frame-rate", &tmp)) {
1564            return INVALID_OPERATION;
1565        }
1566        frameRate = (float)tmp;
1567    }
1568
1569    video_def->xFramerate = (OMX_U32)(frameRate * 65536.0f);
1570    video_def->eCompressionFormat = OMX_VIDEO_CodingUnused;
1571    video_def->eColorFormat = colorFormat;
1572
1573    err = mOMX->setParameter(
1574            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1575
1576    if (err != OK) {
1577        ALOGE("[%s] failed to set input port definition parameters.",
1578              mComponentName.c_str());
1579
1580        return err;
1581    }
1582
1583    /* Output port configuration */
1584
1585    OMX_VIDEO_CODINGTYPE compressionFormat;
1586    err = GetVideoCodingTypeFromMime(mime, &compressionFormat);
1587
1588    if (err != OK) {
1589        return err;
1590    }
1591
1592    err = setVideoPortFormatType(
1593            kPortIndexOutput, compressionFormat, OMX_COLOR_FormatUnused);
1594
1595    if (err != OK) {
1596        ALOGE("[%s] does not support compression format %d",
1597             mComponentName.c_str(), compressionFormat);
1598
1599        return err;
1600    }
1601
1602    def.nPortIndex = kPortIndexOutput;
1603
1604    err = mOMX->getParameter(
1605            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1606
1607    if (err != OK) {
1608        return err;
1609    }
1610
1611    video_def->nFrameWidth = width;
1612    video_def->nFrameHeight = height;
1613    video_def->xFramerate = 0;
1614    video_def->nBitrate = bitrate;
1615    video_def->eCompressionFormat = compressionFormat;
1616    video_def->eColorFormat = OMX_COLOR_FormatUnused;
1617
1618    err = mOMX->setParameter(
1619            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
1620
1621    if (err != OK) {
1622        ALOGE("[%s] failed to set output port definition parameters.",
1623              mComponentName.c_str());
1624
1625        return err;
1626    }
1627
1628    switch (compressionFormat) {
1629        case OMX_VIDEO_CodingMPEG4:
1630            err = setupMPEG4EncoderParameters(msg);
1631            break;
1632
1633        case OMX_VIDEO_CodingH263:
1634            err = setupH263EncoderParameters(msg);
1635            break;
1636
1637        case OMX_VIDEO_CodingAVC:
1638            err = setupAVCEncoderParameters(msg);
1639            break;
1640
1641        default:
1642            break;
1643    }
1644
1645    ALOGI("setupVideoEncoder succeeded");
1646
1647    return err;
1648}
1649
1650status_t ACodec::setCyclicIntraMacroblockRefresh(const sp<AMessage> &msg, int32_t mode) {
1651    OMX_VIDEO_PARAM_INTRAREFRESHTYPE params;
1652    InitOMXParams(&params);
1653    params.nPortIndex = kPortIndexOutput;
1654
1655    params.eRefreshMode = static_cast<OMX_VIDEO_INTRAREFRESHTYPE>(mode);
1656
1657    if (params.eRefreshMode == OMX_VIDEO_IntraRefreshCyclic ||
1658            params.eRefreshMode == OMX_VIDEO_IntraRefreshBoth) {
1659        int32_t mbs;
1660        if (!msg->findInt32("intra-refresh-CIR-mbs", &mbs)) {
1661            return INVALID_OPERATION;
1662        }
1663        params.nCirMBs = mbs;
1664    }
1665
1666    if (params.eRefreshMode == OMX_VIDEO_IntraRefreshAdaptive ||
1667            params.eRefreshMode == OMX_VIDEO_IntraRefreshBoth) {
1668        int32_t mbs;
1669        if (!msg->findInt32("intra-refresh-AIR-mbs", &mbs)) {
1670            return INVALID_OPERATION;
1671        }
1672        params.nAirMBs = mbs;
1673
1674        int32_t ref;
1675        if (!msg->findInt32("intra-refresh-AIR-ref", &ref)) {
1676            return INVALID_OPERATION;
1677        }
1678        params.nAirRef = ref;
1679    }
1680
1681    status_t err = mOMX->setParameter(
1682            mNode, OMX_IndexParamVideoIntraRefresh,
1683            &params, sizeof(params));
1684    return err;
1685}
1686
1687static OMX_U32 setPFramesSpacing(int32_t iFramesInterval, int32_t frameRate) {
1688    if (iFramesInterval < 0) {
1689        return 0xFFFFFFFF;
1690    } else if (iFramesInterval == 0) {
1691        return 0;
1692    }
1693    OMX_U32 ret = frameRate * iFramesInterval;
1694    CHECK(ret > 1);
1695    return ret;
1696}
1697
1698static OMX_VIDEO_CONTROLRATETYPE getBitrateMode(const sp<AMessage> &msg) {
1699    int32_t tmp;
1700    if (!msg->findInt32("bitrate-mode", &tmp)) {
1701        return OMX_Video_ControlRateVariable;
1702    }
1703
1704    return static_cast<OMX_VIDEO_CONTROLRATETYPE>(tmp);
1705}
1706
1707status_t ACodec::setupMPEG4EncoderParameters(const sp<AMessage> &msg) {
1708    int32_t bitrate, iFrameInterval;
1709    if (!msg->findInt32("bitrate", &bitrate)
1710            || !msg->findInt32("i-frame-interval", &iFrameInterval)) {
1711        return INVALID_OPERATION;
1712    }
1713
1714    OMX_VIDEO_CONTROLRATETYPE bitrateMode = getBitrateMode(msg);
1715
1716    float frameRate;
1717    if (!msg->findFloat("frame-rate", &frameRate)) {
1718        int32_t tmp;
1719        if (!msg->findInt32("frame-rate", &tmp)) {
1720            return INVALID_OPERATION;
1721        }
1722        frameRate = (float)tmp;
1723    }
1724
1725    OMX_VIDEO_PARAM_MPEG4TYPE mpeg4type;
1726    InitOMXParams(&mpeg4type);
1727    mpeg4type.nPortIndex = kPortIndexOutput;
1728
1729    status_t err = mOMX->getParameter(
1730            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
1731
1732    if (err != OK) {
1733        return err;
1734    }
1735
1736    mpeg4type.nSliceHeaderSpacing = 0;
1737    mpeg4type.bSVH = OMX_FALSE;
1738    mpeg4type.bGov = OMX_FALSE;
1739
1740    mpeg4type.nAllowedPictureTypes =
1741        OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP;
1742
1743    mpeg4type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate);
1744    if (mpeg4type.nPFrames == 0) {
1745        mpeg4type.nAllowedPictureTypes = OMX_VIDEO_PictureTypeI;
1746    }
1747    mpeg4type.nBFrames = 0;
1748    mpeg4type.nIDCVLCThreshold = 0;
1749    mpeg4type.bACPred = OMX_TRUE;
1750    mpeg4type.nMaxPacketSize = 256;
1751    mpeg4type.nTimeIncRes = 1000;
1752    mpeg4type.nHeaderExtension = 0;
1753    mpeg4type.bReversibleVLC = OMX_FALSE;
1754
1755    int32_t profile;
1756    if (msg->findInt32("profile", &profile)) {
1757        int32_t level;
1758        if (!msg->findInt32("level", &level)) {
1759            return INVALID_OPERATION;
1760        }
1761
1762        err = verifySupportForProfileAndLevel(profile, level);
1763
1764        if (err != OK) {
1765            return err;
1766        }
1767
1768        mpeg4type.eProfile = static_cast<OMX_VIDEO_MPEG4PROFILETYPE>(profile);
1769        mpeg4type.eLevel = static_cast<OMX_VIDEO_MPEG4LEVELTYPE>(level);
1770    }
1771
1772    err = mOMX->setParameter(
1773            mNode, OMX_IndexParamVideoMpeg4, &mpeg4type, sizeof(mpeg4type));
1774
1775    if (err != OK) {
1776        return err;
1777    }
1778
1779    err = configureBitrate(bitrate, bitrateMode);
1780
1781    if (err != OK) {
1782        return err;
1783    }
1784
1785    return setupErrorCorrectionParameters();
1786}
1787
1788status_t ACodec::setupH263EncoderParameters(const sp<AMessage> &msg) {
1789    int32_t bitrate, iFrameInterval;
1790    if (!msg->findInt32("bitrate", &bitrate)
1791            || !msg->findInt32("i-frame-interval", &iFrameInterval)) {
1792        return INVALID_OPERATION;
1793    }
1794
1795    OMX_VIDEO_CONTROLRATETYPE bitrateMode = getBitrateMode(msg);
1796
1797    float frameRate;
1798    if (!msg->findFloat("frame-rate", &frameRate)) {
1799        int32_t tmp;
1800        if (!msg->findInt32("frame-rate", &tmp)) {
1801            return INVALID_OPERATION;
1802        }
1803        frameRate = (float)tmp;
1804    }
1805
1806    OMX_VIDEO_PARAM_H263TYPE h263type;
1807    InitOMXParams(&h263type);
1808    h263type.nPortIndex = kPortIndexOutput;
1809
1810    status_t err = mOMX->getParameter(
1811            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
1812
1813    if (err != OK) {
1814        return err;
1815    }
1816
1817    h263type.nAllowedPictureTypes =
1818        OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP;
1819
1820    h263type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate);
1821    if (h263type.nPFrames == 0) {
1822        h263type.nAllowedPictureTypes = OMX_VIDEO_PictureTypeI;
1823    }
1824    h263type.nBFrames = 0;
1825
1826    int32_t profile;
1827    if (msg->findInt32("profile", &profile)) {
1828        int32_t level;
1829        if (!msg->findInt32("level", &level)) {
1830            return INVALID_OPERATION;
1831        }
1832
1833        err = verifySupportForProfileAndLevel(profile, level);
1834
1835        if (err != OK) {
1836            return err;
1837        }
1838
1839        h263type.eProfile = static_cast<OMX_VIDEO_H263PROFILETYPE>(profile);
1840        h263type.eLevel = static_cast<OMX_VIDEO_H263LEVELTYPE>(level);
1841    }
1842
1843    h263type.bPLUSPTYPEAllowed = OMX_FALSE;
1844    h263type.bForceRoundingTypeToZero = OMX_FALSE;
1845    h263type.nPictureHeaderRepetition = 0;
1846    h263type.nGOBHeaderInterval = 0;
1847
1848    err = mOMX->setParameter(
1849            mNode, OMX_IndexParamVideoH263, &h263type, sizeof(h263type));
1850
1851    if (err != OK) {
1852        return err;
1853    }
1854
1855    err = configureBitrate(bitrate, bitrateMode);
1856
1857    if (err != OK) {
1858        return err;
1859    }
1860
1861    return setupErrorCorrectionParameters();
1862}
1863
1864status_t ACodec::setupAVCEncoderParameters(const sp<AMessage> &msg) {
1865    int32_t bitrate, iFrameInterval;
1866    if (!msg->findInt32("bitrate", &bitrate)
1867            || !msg->findInt32("i-frame-interval", &iFrameInterval)) {
1868        return INVALID_OPERATION;
1869    }
1870
1871    OMX_VIDEO_CONTROLRATETYPE bitrateMode = getBitrateMode(msg);
1872
1873    float frameRate;
1874    if (!msg->findFloat("frame-rate", &frameRate)) {
1875        int32_t tmp;
1876        if (!msg->findInt32("frame-rate", &tmp)) {
1877            return INVALID_OPERATION;
1878        }
1879        frameRate = (float)tmp;
1880    }
1881
1882    status_t err = OK;
1883    int32_t intraRefreshMode = 0;
1884    if (msg->findInt32("intra-refresh-mode", &intraRefreshMode)) {
1885        err = setCyclicIntraMacroblockRefresh(msg, intraRefreshMode);
1886        if (err != OK) {
1887            ALOGE("Setting intra macroblock refresh mode (%d) failed: 0x%x",
1888                    err, intraRefreshMode);
1889            return err;
1890        }
1891    }
1892
1893    OMX_VIDEO_PARAM_AVCTYPE h264type;
1894    InitOMXParams(&h264type);
1895    h264type.nPortIndex = kPortIndexOutput;
1896
1897    err = mOMX->getParameter(
1898            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
1899
1900    if (err != OK) {
1901        return err;
1902    }
1903
1904    h264type.nAllowedPictureTypes =
1905        OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP;
1906
1907    int32_t profile;
1908    if (msg->findInt32("profile", &profile)) {
1909        int32_t level;
1910        if (!msg->findInt32("level", &level)) {
1911            return INVALID_OPERATION;
1912        }
1913
1914        err = verifySupportForProfileAndLevel(profile, level);
1915
1916        if (err != OK) {
1917            return err;
1918        }
1919
1920        h264type.eProfile = static_cast<OMX_VIDEO_AVCPROFILETYPE>(profile);
1921        h264type.eLevel = static_cast<OMX_VIDEO_AVCLEVELTYPE>(level);
1922    }
1923
1924    // XXX
1925    if (h264type.eProfile != OMX_VIDEO_AVCProfileBaseline) {
1926        ALOGW("Use baseline profile instead of %d for AVC recording",
1927            h264type.eProfile);
1928        h264type.eProfile = OMX_VIDEO_AVCProfileBaseline;
1929    }
1930
1931    if (h264type.eProfile == OMX_VIDEO_AVCProfileBaseline) {
1932        h264type.nSliceHeaderSpacing = 0;
1933        h264type.bUseHadamard = OMX_TRUE;
1934        h264type.nRefFrames = 1;
1935        h264type.nBFrames = 0;
1936        h264type.nPFrames = setPFramesSpacing(iFrameInterval, frameRate);
1937        if (h264type.nPFrames == 0) {
1938            h264type.nAllowedPictureTypes = OMX_VIDEO_PictureTypeI;
1939        }
1940        h264type.nRefIdx10ActiveMinus1 = 0;
1941        h264type.nRefIdx11ActiveMinus1 = 0;
1942        h264type.bEntropyCodingCABAC = OMX_FALSE;
1943        h264type.bWeightedPPrediction = OMX_FALSE;
1944        h264type.bconstIpred = OMX_FALSE;
1945        h264type.bDirect8x8Inference = OMX_FALSE;
1946        h264type.bDirectSpatialTemporal = OMX_FALSE;
1947        h264type.nCabacInitIdc = 0;
1948    }
1949
1950    if (h264type.nBFrames != 0) {
1951        h264type.nAllowedPictureTypes |= OMX_VIDEO_PictureTypeB;
1952    }
1953
1954    h264type.bEnableUEP = OMX_FALSE;
1955    h264type.bEnableFMO = OMX_FALSE;
1956    h264type.bEnableASO = OMX_FALSE;
1957    h264type.bEnableRS = OMX_FALSE;
1958    h264type.bFrameMBsOnly = OMX_TRUE;
1959    h264type.bMBAFF = OMX_FALSE;
1960    h264type.eLoopFilterMode = OMX_VIDEO_AVCLoopFilterEnable;
1961
1962    err = mOMX->setParameter(
1963            mNode, OMX_IndexParamVideoAvc, &h264type, sizeof(h264type));
1964
1965    if (err != OK) {
1966        return err;
1967    }
1968
1969    return configureBitrate(bitrate, bitrateMode);
1970}
1971
1972status_t ACodec::verifySupportForProfileAndLevel(
1973        int32_t profile, int32_t level) {
1974    OMX_VIDEO_PARAM_PROFILELEVELTYPE params;
1975    InitOMXParams(&params);
1976    params.nPortIndex = kPortIndexOutput;
1977
1978    for (params.nProfileIndex = 0;; ++params.nProfileIndex) {
1979        status_t err = mOMX->getParameter(
1980                mNode,
1981                OMX_IndexParamVideoProfileLevelQuerySupported,
1982                &params,
1983                sizeof(params));
1984
1985        if (err != OK) {
1986            return err;
1987        }
1988
1989        int32_t supportedProfile = static_cast<int32_t>(params.eProfile);
1990        int32_t supportedLevel = static_cast<int32_t>(params.eLevel);
1991
1992        if (profile == supportedProfile && level <= supportedLevel) {
1993            return OK;
1994        }
1995    }
1996}
1997
1998status_t ACodec::configureBitrate(
1999        int32_t bitrate, OMX_VIDEO_CONTROLRATETYPE bitrateMode) {
2000    OMX_VIDEO_PARAM_BITRATETYPE bitrateType;
2001    InitOMXParams(&bitrateType);
2002    bitrateType.nPortIndex = kPortIndexOutput;
2003
2004    status_t err = mOMX->getParameter(
2005            mNode, OMX_IndexParamVideoBitrate,
2006            &bitrateType, sizeof(bitrateType));
2007
2008    if (err != OK) {
2009        return err;
2010    }
2011
2012    bitrateType.eControlRate = bitrateMode;
2013    bitrateType.nTargetBitrate = bitrate;
2014
2015    return mOMX->setParameter(
2016            mNode, OMX_IndexParamVideoBitrate,
2017            &bitrateType, sizeof(bitrateType));
2018}
2019
2020status_t ACodec::setupErrorCorrectionParameters() {
2021    OMX_VIDEO_PARAM_ERRORCORRECTIONTYPE errorCorrectionType;
2022    InitOMXParams(&errorCorrectionType);
2023    errorCorrectionType.nPortIndex = kPortIndexOutput;
2024
2025    status_t err = mOMX->getParameter(
2026            mNode, OMX_IndexParamVideoErrorCorrection,
2027            &errorCorrectionType, sizeof(errorCorrectionType));
2028
2029    if (err != OK) {
2030        return OK;  // Optional feature. Ignore this failure
2031    }
2032
2033    errorCorrectionType.bEnableHEC = OMX_FALSE;
2034    errorCorrectionType.bEnableResync = OMX_TRUE;
2035    errorCorrectionType.nResynchMarkerSpacing = 256;
2036    errorCorrectionType.bEnableDataPartitioning = OMX_FALSE;
2037    errorCorrectionType.bEnableRVLC = OMX_FALSE;
2038
2039    return mOMX->setParameter(
2040            mNode, OMX_IndexParamVideoErrorCorrection,
2041            &errorCorrectionType, sizeof(errorCorrectionType));
2042}
2043
2044status_t ACodec::setVideoFormatOnPort(
2045        OMX_U32 portIndex,
2046        int32_t width, int32_t height, OMX_VIDEO_CODINGTYPE compressionFormat) {
2047    OMX_PARAM_PORTDEFINITIONTYPE def;
2048    InitOMXParams(&def);
2049    def.nPortIndex = portIndex;
2050
2051    OMX_VIDEO_PORTDEFINITIONTYPE *video_def = &def.format.video;
2052
2053    status_t err = mOMX->getParameter(
2054            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
2055
2056    CHECK_EQ(err, (status_t)OK);
2057
2058    if (portIndex == kPortIndexInput) {
2059        // XXX Need a (much) better heuristic to compute input buffer sizes.
2060        const size_t X = 64 * 1024;
2061        if (def.nBufferSize < X) {
2062            def.nBufferSize = X;
2063        }
2064    }
2065
2066    CHECK_EQ((int)def.eDomain, (int)OMX_PortDomainVideo);
2067
2068    video_def->nFrameWidth = width;
2069    video_def->nFrameHeight = height;
2070
2071    if (portIndex == kPortIndexInput) {
2072        video_def->eCompressionFormat = compressionFormat;
2073        video_def->eColorFormat = OMX_COLOR_FormatUnused;
2074    }
2075
2076    err = mOMX->setParameter(
2077            mNode, OMX_IndexParamPortDefinition, &def, sizeof(def));
2078
2079    return err;
2080}
2081
2082status_t ACodec::initNativeWindow() {
2083    if (mNativeWindow != NULL) {
2084        return mOMX->enableGraphicBuffers(mNode, kPortIndexOutput, OMX_TRUE);
2085    }
2086
2087    mOMX->enableGraphicBuffers(mNode, kPortIndexOutput, OMX_FALSE);
2088    return OK;
2089}
2090
2091size_t ACodec::countBuffersOwnedByComponent(OMX_U32 portIndex) const {
2092    size_t n = 0;
2093
2094    for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
2095        const BufferInfo &info = mBuffers[portIndex].itemAt(i);
2096
2097        if (info.mStatus == BufferInfo::OWNED_BY_COMPONENT) {
2098            ++n;
2099        }
2100    }
2101
2102    return n;
2103}
2104
2105bool ACodec::allYourBuffersAreBelongToUs(
2106        OMX_U32 portIndex) {
2107    for (size_t i = 0; i < mBuffers[portIndex].size(); ++i) {
2108        BufferInfo *info = &mBuffers[portIndex].editItemAt(i);
2109
2110        if (info->mStatus != BufferInfo::OWNED_BY_US
2111                && info->mStatus != BufferInfo::OWNED_BY_NATIVE_WINDOW) {
2112            ALOGV("[%s] Buffer %p on port %ld still has status %d",
2113                    mComponentName.c_str(),
2114                    info->mBufferID, portIndex, info->mStatus);
2115            return false;
2116        }
2117    }
2118
2119    return true;
2120}
2121
2122bool ACodec::allYourBuffersAreBelongToUs() {
2123    return allYourBuffersAreBelongToUs(kPortIndexInput)
2124        && allYourBuffersAreBelongToUs(kPortIndexOutput);
2125}
2126
2127void ACodec::deferMessage(const sp<AMessage> &msg) {
2128    bool wasEmptyBefore = mDeferredQueue.empty();
2129    mDeferredQueue.push_back(msg);
2130}
2131
2132void ACodec::processDeferredMessages() {
2133    List<sp<AMessage> > queue = mDeferredQueue;
2134    mDeferredQueue.clear();
2135
2136    List<sp<AMessage> >::iterator it = queue.begin();
2137    while (it != queue.end()) {
2138        onMessageReceived(*it++);
2139    }
2140}
2141
2142void ACodec::sendFormatChange() {
2143    sp<AMessage> notify = mNotify->dup();
2144    notify->setInt32("what", kWhatOutputFormatChanged);
2145
2146    OMX_PARAM_PORTDEFINITIONTYPE def;
2147    InitOMXParams(&def);
2148    def.nPortIndex = kPortIndexOutput;
2149
2150    CHECK_EQ(mOMX->getParameter(
2151                mNode, OMX_IndexParamPortDefinition, &def, sizeof(def)),
2152             (status_t)OK);
2153
2154    CHECK_EQ((int)def.eDir, (int)OMX_DirOutput);
2155
2156    switch (def.eDomain) {
2157        case OMX_PortDomainVideo:
2158        {
2159            OMX_VIDEO_PORTDEFINITIONTYPE *videoDef = &def.format.video;
2160
2161            notify->setString("mime", MEDIA_MIMETYPE_VIDEO_RAW);
2162            notify->setInt32("width", videoDef->nFrameWidth);
2163            notify->setInt32("height", videoDef->nFrameHeight);
2164            notify->setInt32("stride", videoDef->nStride);
2165            notify->setInt32("slice-height", videoDef->nSliceHeight);
2166            notify->setInt32("color-format", videoDef->eColorFormat);
2167
2168            OMX_CONFIG_RECTTYPE rect;
2169            InitOMXParams(&rect);
2170            rect.nPortIndex = kPortIndexOutput;
2171
2172            if (mOMX->getConfig(
2173                        mNode, OMX_IndexConfigCommonOutputCrop,
2174                        &rect, sizeof(rect)) != OK) {
2175                rect.nLeft = 0;
2176                rect.nTop = 0;
2177                rect.nWidth = videoDef->nFrameWidth;
2178                rect.nHeight = videoDef->nFrameHeight;
2179            }
2180
2181            CHECK_GE(rect.nLeft, 0);
2182            CHECK_GE(rect.nTop, 0);
2183            CHECK_GE(rect.nWidth, 0u);
2184            CHECK_GE(rect.nHeight, 0u);
2185            CHECK_LE(rect.nLeft + rect.nWidth - 1, videoDef->nFrameWidth);
2186            CHECK_LE(rect.nTop + rect.nHeight - 1, videoDef->nFrameHeight);
2187
2188            notify->setRect(
2189                    "crop",
2190                    rect.nLeft,
2191                    rect.nTop,
2192                    rect.nLeft + rect.nWidth - 1,
2193                    rect.nTop + rect.nHeight - 1);
2194
2195            if (mNativeWindow != NULL) {
2196                android_native_rect_t crop;
2197                crop.left = rect.nLeft;
2198                crop.top = rect.nTop;
2199                crop.right = rect.nLeft + rect.nWidth;
2200                crop.bottom = rect.nTop + rect.nHeight;
2201
2202                CHECK_EQ(0, native_window_set_crop(
2203                            mNativeWindow.get(), &crop));
2204            }
2205            break;
2206        }
2207
2208        case OMX_PortDomainAudio:
2209        {
2210            OMX_AUDIO_PORTDEFINITIONTYPE *audioDef = &def.format.audio;
2211            CHECK_EQ((int)audioDef->eEncoding, (int)OMX_AUDIO_CodingPCM);
2212
2213            OMX_AUDIO_PARAM_PCMMODETYPE params;
2214            InitOMXParams(&params);
2215            params.nPortIndex = kPortIndexOutput;
2216
2217            CHECK_EQ(mOMX->getParameter(
2218                        mNode, OMX_IndexParamAudioPcm,
2219                        &params, sizeof(params)),
2220                     (status_t)OK);
2221
2222            CHECK(params.nChannels == 1 || params.bInterleaved);
2223            CHECK_EQ(params.nBitPerSample, 16u);
2224            CHECK_EQ((int)params.eNumData, (int)OMX_NumericalDataSigned);
2225            CHECK_EQ((int)params.ePCMMode, (int)OMX_AUDIO_PCMModeLinear);
2226
2227            notify->setString("mime", MEDIA_MIMETYPE_AUDIO_RAW);
2228            notify->setInt32("channel-count", params.nChannels);
2229            notify->setInt32("sample-rate", params.nSamplingRate);
2230            if (mEncoderDelay + mEncoderPadding) {
2231                size_t frameSize = params.nChannels * sizeof(int16_t);
2232                if (mSkipCutBuffer != NULL) {
2233                    size_t prevbufsize = mSkipCutBuffer->size();
2234                    if (prevbufsize != 0) {
2235                        ALOGW("Replacing SkipCutBuffer holding %d bytes", prevbufsize);
2236                    }
2237                }
2238                mSkipCutBuffer = new SkipCutBuffer(mEncoderDelay * frameSize,
2239                                                   mEncoderPadding * frameSize);
2240            }
2241
2242            if (mChannelMaskPresent) {
2243                notify->setInt32("channel-mask", mChannelMask);
2244            }
2245
2246            break;
2247        }
2248
2249        default:
2250            TRESPASS();
2251    }
2252
2253    notify->post();
2254
2255    mSentFormat = true;
2256}
2257
2258void ACodec::signalError(OMX_ERRORTYPE error, status_t internalError) {
2259    sp<AMessage> notify = mNotify->dup();
2260    notify->setInt32("what", ACodec::kWhatError);
2261    notify->setInt32("omx-error", error);
2262    notify->setInt32("err", internalError);
2263    notify->post();
2264}
2265
2266status_t ACodec::pushBlankBuffersToNativeWindow() {
2267    status_t err = NO_ERROR;
2268    ANativeWindowBuffer* anb = NULL;
2269    int numBufs = 0;
2270    int minUndequeuedBufs = 0;
2271
2272    // We need to reconnect to the ANativeWindow as a CPU client to ensure that
2273    // no frames get dropped by SurfaceFlinger assuming that these are video
2274    // frames.
2275    err = native_window_api_disconnect(mNativeWindow.get(),
2276            NATIVE_WINDOW_API_MEDIA);
2277    if (err != NO_ERROR) {
2278        ALOGE("error pushing blank frames: api_disconnect failed: %s (%d)",
2279                strerror(-err), -err);
2280        return err;
2281    }
2282
2283    err = native_window_api_connect(mNativeWindow.get(),
2284            NATIVE_WINDOW_API_CPU);
2285    if (err != NO_ERROR) {
2286        ALOGE("error pushing blank frames: api_connect failed: %s (%d)",
2287                strerror(-err), -err);
2288        return err;
2289    }
2290
2291    err = native_window_set_buffers_geometry(mNativeWindow.get(), 1, 1,
2292            HAL_PIXEL_FORMAT_RGBX_8888);
2293    if (err != NO_ERROR) {
2294        ALOGE("error pushing blank frames: set_buffers_geometry failed: %s (%d)",
2295                strerror(-err), -err);
2296        goto error;
2297    }
2298
2299    err = native_window_set_usage(mNativeWindow.get(),
2300            GRALLOC_USAGE_SW_WRITE_OFTEN);
2301    if (err != NO_ERROR) {
2302        ALOGE("error pushing blank frames: set_usage failed: %s (%d)",
2303                strerror(-err), -err);
2304        goto error;
2305    }
2306
2307    err = mNativeWindow->query(mNativeWindow.get(),
2308            NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS, &minUndequeuedBufs);
2309    if (err != NO_ERROR) {
2310        ALOGE("error pushing blank frames: MIN_UNDEQUEUED_BUFFERS query "
2311                "failed: %s (%d)", strerror(-err), -err);
2312        goto error;
2313    }
2314
2315    numBufs = minUndequeuedBufs + 1;
2316    err = native_window_set_buffer_count(mNativeWindow.get(), numBufs);
2317    if (err != NO_ERROR) {
2318        ALOGE("error pushing blank frames: set_buffer_count failed: %s (%d)",
2319                strerror(-err), -err);
2320        goto error;
2321    }
2322
2323    // We  push numBufs + 1 buffers to ensure that we've drawn into the same
2324    // buffer twice.  This should guarantee that the buffer has been displayed
2325    // on the screen and then been replaced, so an previous video frames are
2326    // guaranteed NOT to be currently displayed.
2327    for (int i = 0; i < numBufs + 1; i++) {
2328        int fenceFd = -1;
2329        err = native_window_dequeue_buffer_and_wait(mNativeWindow.get(), &anb);
2330        if (err != NO_ERROR) {
2331            ALOGE("error pushing blank frames: dequeueBuffer failed: %s (%d)",
2332                    strerror(-err), -err);
2333            goto error;
2334        }
2335
2336        sp<GraphicBuffer> buf(new GraphicBuffer(anb, false));
2337
2338        // Fill the buffer with the a 1x1 checkerboard pattern ;)
2339        uint32_t* img = NULL;
2340        err = buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
2341        if (err != NO_ERROR) {
2342            ALOGE("error pushing blank frames: lock failed: %s (%d)",
2343                    strerror(-err), -err);
2344            goto error;
2345        }
2346
2347        *img = 0;
2348
2349        err = buf->unlock();
2350        if (err != NO_ERROR) {
2351            ALOGE("error pushing blank frames: unlock failed: %s (%d)",
2352                    strerror(-err), -err);
2353            goto error;
2354        }
2355
2356        err = mNativeWindow->queueBuffer(mNativeWindow.get(),
2357                buf->getNativeBuffer(), -1);
2358        if (err != NO_ERROR) {
2359            ALOGE("error pushing blank frames: queueBuffer failed: %s (%d)",
2360                    strerror(-err), -err);
2361            goto error;
2362        }
2363
2364        anb = NULL;
2365    }
2366
2367error:
2368
2369    if (err != NO_ERROR) {
2370        // Clean up after an error.
2371        if (anb != NULL) {
2372            mNativeWindow->cancelBuffer(mNativeWindow.get(), anb, -1);
2373        }
2374
2375        native_window_api_disconnect(mNativeWindow.get(),
2376                NATIVE_WINDOW_API_CPU);
2377        native_window_api_connect(mNativeWindow.get(),
2378                NATIVE_WINDOW_API_MEDIA);
2379
2380        return err;
2381    } else {
2382        // Clean up after success.
2383        err = native_window_api_disconnect(mNativeWindow.get(),
2384                NATIVE_WINDOW_API_CPU);
2385        if (err != NO_ERROR) {
2386            ALOGE("error pushing blank frames: api_disconnect failed: %s (%d)",
2387                    strerror(-err), -err);
2388            return err;
2389        }
2390
2391        err = native_window_api_connect(mNativeWindow.get(),
2392                NATIVE_WINDOW_API_MEDIA);
2393        if (err != NO_ERROR) {
2394            ALOGE("error pushing blank frames: api_connect failed: %s (%d)",
2395                    strerror(-err), -err);
2396            return err;
2397        }
2398
2399        return NO_ERROR;
2400    }
2401}
2402
2403////////////////////////////////////////////////////////////////////////////////
2404
2405ACodec::PortDescription::PortDescription() {
2406}
2407
2408status_t ACodec::requestIDRFrame() {
2409    if (!mIsEncoder) {
2410        return ERROR_UNSUPPORTED;
2411    }
2412
2413    OMX_CONFIG_INTRAREFRESHVOPTYPE params;
2414    InitOMXParams(&params);
2415
2416    params.nPortIndex = kPortIndexOutput;
2417    params.IntraRefreshVOP = OMX_TRUE;
2418
2419    return mOMX->setConfig(
2420            mNode,
2421            OMX_IndexConfigVideoIntraVOPRefresh,
2422            &params,
2423            sizeof(params));
2424}
2425
2426void ACodec::PortDescription::addBuffer(
2427        IOMX::buffer_id id, const sp<ABuffer> &buffer) {
2428    mBufferIDs.push_back(id);
2429    mBuffers.push_back(buffer);
2430}
2431
2432size_t ACodec::PortDescription::countBuffers() {
2433    return mBufferIDs.size();
2434}
2435
2436IOMX::buffer_id ACodec::PortDescription::bufferIDAt(size_t index) const {
2437    return mBufferIDs.itemAt(index);
2438}
2439
2440sp<ABuffer> ACodec::PortDescription::bufferAt(size_t index) const {
2441    return mBuffers.itemAt(index);
2442}
2443
2444////////////////////////////////////////////////////////////////////////////////
2445
2446ACodec::BaseState::BaseState(ACodec *codec, const sp<AState> &parentState)
2447    : AState(parentState),
2448      mCodec(codec) {
2449}
2450
2451ACodec::BaseState::PortMode ACodec::BaseState::getPortMode(OMX_U32 portIndex) {
2452    return KEEP_BUFFERS;
2453}
2454
2455bool ACodec::BaseState::onMessageReceived(const sp<AMessage> &msg) {
2456    switch (msg->what()) {
2457        case kWhatInputBufferFilled:
2458        {
2459            onInputBufferFilled(msg);
2460            break;
2461        }
2462
2463        case kWhatOutputBufferDrained:
2464        {
2465            onOutputBufferDrained(msg);
2466            break;
2467        }
2468
2469        case ACodec::kWhatOMXMessage:
2470        {
2471            return onOMXMessage(msg);
2472        }
2473
2474        case ACodec::kWhatCreateInputSurface:
2475        case ACodec::kWhatSignalEndOfInputStream:
2476        {
2477            ALOGE("Message 0x%x was not handled", msg->what());
2478            mCodec->signalError(OMX_ErrorUndefined, INVALID_OPERATION);
2479            return true;
2480        }
2481
2482        default:
2483            return false;
2484    }
2485
2486    return true;
2487}
2488
2489bool ACodec::BaseState::onOMXMessage(const sp<AMessage> &msg) {
2490    int32_t type;
2491    CHECK(msg->findInt32("type", &type));
2492
2493    IOMX::node_id nodeID;
2494    CHECK(msg->findPointer("node", &nodeID));
2495    CHECK_EQ(nodeID, mCodec->mNode);
2496
2497    switch (type) {
2498        case omx_message::EVENT:
2499        {
2500            int32_t event, data1, data2;
2501            CHECK(msg->findInt32("event", &event));
2502            CHECK(msg->findInt32("data1", &data1));
2503            CHECK(msg->findInt32("data2", &data2));
2504
2505            if (event == OMX_EventCmdComplete
2506                    && data1 == OMX_CommandFlush
2507                    && data2 == (int32_t)OMX_ALL) {
2508                // Use of this notification is not consistent across
2509                // implementations. We'll drop this notification and rely
2510                // on flush-complete notifications on the individual port
2511                // indices instead.
2512
2513                return true;
2514            }
2515
2516            return onOMXEvent(
2517                    static_cast<OMX_EVENTTYPE>(event),
2518                    static_cast<OMX_U32>(data1),
2519                    static_cast<OMX_U32>(data2));
2520        }
2521
2522        case omx_message::EMPTY_BUFFER_DONE:
2523        {
2524            IOMX::buffer_id bufferID;
2525            CHECK(msg->findPointer("buffer", &bufferID));
2526
2527            return onOMXEmptyBufferDone(bufferID);
2528        }
2529
2530        case omx_message::FILL_BUFFER_DONE:
2531        {
2532            IOMX::buffer_id bufferID;
2533            CHECK(msg->findPointer("buffer", &bufferID));
2534
2535            int32_t rangeOffset, rangeLength, flags;
2536            int64_t timeUs;
2537            void *platformPrivate;
2538            void *dataPtr;
2539
2540            CHECK(msg->findInt32("range_offset", &rangeOffset));
2541            CHECK(msg->findInt32("range_length", &rangeLength));
2542            CHECK(msg->findInt32("flags", &flags));
2543            CHECK(msg->findInt64("timestamp", &timeUs));
2544            CHECK(msg->findPointer("platform_private", &platformPrivate));
2545            CHECK(msg->findPointer("data_ptr", &dataPtr));
2546
2547            return onOMXFillBufferDone(
2548                    bufferID,
2549                    (size_t)rangeOffset, (size_t)rangeLength,
2550                    (OMX_U32)flags,
2551                    timeUs,
2552                    platformPrivate,
2553                    dataPtr);
2554        }
2555
2556        default:
2557            TRESPASS();
2558            break;
2559    }
2560}
2561
2562bool ACodec::BaseState::onOMXEvent(
2563        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
2564    if (event != OMX_EventError) {
2565        ALOGV("[%s] EVENT(%d, 0x%08lx, 0x%08lx)",
2566             mCodec->mComponentName.c_str(), event, data1, data2);
2567
2568        return false;
2569    }
2570
2571    ALOGE("[%s] ERROR(0x%08lx)", mCodec->mComponentName.c_str(), data1);
2572
2573    mCodec->signalError((OMX_ERRORTYPE)data1);
2574
2575    return true;
2576}
2577
2578bool ACodec::BaseState::onOMXEmptyBufferDone(IOMX::buffer_id bufferID) {
2579    ALOGV("[%s] onOMXEmptyBufferDone %p",
2580         mCodec->mComponentName.c_str(), bufferID);
2581
2582    BufferInfo *info =
2583        mCodec->findBufferByID(kPortIndexInput, bufferID);
2584
2585    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_COMPONENT);
2586    info->mStatus = BufferInfo::OWNED_BY_US;
2587
2588    const sp<AMessage> &bufferMeta = info->mData->meta();
2589    void *mediaBuffer;
2590    if (bufferMeta->findPointer("mediaBuffer", &mediaBuffer)
2591            && mediaBuffer != NULL) {
2592        // We're in "store-metadata-in-buffers" mode, the underlying
2593        // OMX component had access to data that's implicitly refcounted
2594        // by this "mediaBuffer" object. Now that the OMX component has
2595        // told us that it's done with the input buffer, we can decrement
2596        // the mediaBuffer's reference count.
2597
2598        ALOGV("releasing mbuf %p", mediaBuffer);
2599
2600        ((MediaBuffer *)mediaBuffer)->release();
2601        mediaBuffer = NULL;
2602
2603        bufferMeta->setPointer("mediaBuffer", NULL);
2604    }
2605
2606    PortMode mode = getPortMode(kPortIndexInput);
2607
2608    switch (mode) {
2609        case KEEP_BUFFERS:
2610            break;
2611
2612        case RESUBMIT_BUFFERS:
2613            postFillThisBuffer(info);
2614            break;
2615
2616        default:
2617        {
2618            CHECK_EQ((int)mode, (int)FREE_BUFFERS);
2619            TRESPASS();  // Not currently used
2620            break;
2621        }
2622    }
2623
2624    return true;
2625}
2626
2627void ACodec::BaseState::postFillThisBuffer(BufferInfo *info) {
2628    if (mCodec->mPortEOS[kPortIndexInput]) {
2629        return;
2630    }
2631
2632    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_US);
2633
2634    sp<AMessage> notify = mCodec->mNotify->dup();
2635    notify->setInt32("what", ACodec::kWhatFillThisBuffer);
2636    notify->setPointer("buffer-id", info->mBufferID);
2637
2638    info->mData->meta()->clear();
2639    notify->setBuffer("buffer", info->mData);
2640
2641    sp<AMessage> reply = new AMessage(kWhatInputBufferFilled, mCodec->id());
2642    reply->setPointer("buffer-id", info->mBufferID);
2643
2644    notify->setMessage("reply", reply);
2645
2646    notify->post();
2647
2648    info->mStatus = BufferInfo::OWNED_BY_UPSTREAM;
2649}
2650
2651void ACodec::BaseState::onInputBufferFilled(const sp<AMessage> &msg) {
2652    IOMX::buffer_id bufferID;
2653    CHECK(msg->findPointer("buffer-id", &bufferID));
2654
2655    sp<ABuffer> buffer;
2656    int32_t err = OK;
2657    bool eos = false;
2658
2659    if (!msg->findBuffer("buffer", &buffer)) {
2660        CHECK(msg->findInt32("err", &err));
2661
2662        ALOGV("[%s] saw error %d instead of an input buffer",
2663             mCodec->mComponentName.c_str(), err);
2664
2665        buffer.clear();
2666
2667        eos = true;
2668    }
2669
2670    int32_t tmp;
2671    if (buffer != NULL && buffer->meta()->findInt32("eos", &tmp) && tmp) {
2672        eos = true;
2673        err = ERROR_END_OF_STREAM;
2674    }
2675
2676    BufferInfo *info = mCodec->findBufferByID(kPortIndexInput, bufferID);
2677    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_UPSTREAM);
2678
2679    info->mStatus = BufferInfo::OWNED_BY_US;
2680
2681    PortMode mode = getPortMode(kPortIndexInput);
2682
2683    switch (mode) {
2684        case KEEP_BUFFERS:
2685        {
2686            if (eos) {
2687                if (!mCodec->mPortEOS[kPortIndexInput]) {
2688                    mCodec->mPortEOS[kPortIndexInput] = true;
2689                    mCodec->mInputEOSResult = err;
2690                }
2691            }
2692            break;
2693        }
2694
2695        case RESUBMIT_BUFFERS:
2696        {
2697            if (buffer != NULL && !mCodec->mPortEOS[kPortIndexInput]) {
2698                int64_t timeUs;
2699                CHECK(buffer->meta()->findInt64("timeUs", &timeUs));
2700
2701                OMX_U32 flags = OMX_BUFFERFLAG_ENDOFFRAME;
2702
2703                int32_t isCSD;
2704                if (buffer->meta()->findInt32("csd", &isCSD) && isCSD != 0) {
2705                    flags |= OMX_BUFFERFLAG_CODECCONFIG;
2706                }
2707
2708                if (eos) {
2709                    flags |= OMX_BUFFERFLAG_EOS;
2710                }
2711
2712                if (buffer != info->mData) {
2713                    ALOGV("[%s] Needs to copy input data for buffer %p. (%p != %p)",
2714                         mCodec->mComponentName.c_str(),
2715                         bufferID,
2716                         buffer.get(), info->mData.get());
2717
2718                    CHECK_LE(buffer->size(), info->mData->capacity());
2719                    memcpy(info->mData->data(), buffer->data(), buffer->size());
2720                }
2721
2722                if (flags & OMX_BUFFERFLAG_CODECCONFIG) {
2723                    ALOGV("[%s] calling emptyBuffer %p w/ codec specific data",
2724                         mCodec->mComponentName.c_str(), bufferID);
2725                } else if (flags & OMX_BUFFERFLAG_EOS) {
2726                    ALOGV("[%s] calling emptyBuffer %p w/ EOS",
2727                         mCodec->mComponentName.c_str(), bufferID);
2728                } else {
2729#if TRACK_BUFFER_TIMING
2730                    ALOGI("[%s] calling emptyBuffer %p w/ time %lld us",
2731                         mCodec->mComponentName.c_str(), bufferID, timeUs);
2732#else
2733                    ALOGV("[%s] calling emptyBuffer %p w/ time %lld us",
2734                         mCodec->mComponentName.c_str(), bufferID, timeUs);
2735#endif
2736                }
2737
2738#if TRACK_BUFFER_TIMING
2739                ACodec::BufferStats stats;
2740                stats.mEmptyBufferTimeUs = ALooper::GetNowUs();
2741                stats.mFillBufferDoneTimeUs = -1ll;
2742                mCodec->mBufferStats.add(timeUs, stats);
2743#endif
2744
2745                CHECK_EQ(mCodec->mOMX->emptyBuffer(
2746                            mCodec->mNode,
2747                            bufferID,
2748                            0,
2749                            buffer->size(),
2750                            flags,
2751                            timeUs),
2752                         (status_t)OK);
2753
2754                info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
2755
2756                if (!eos) {
2757                    getMoreInputDataIfPossible();
2758                } else {
2759                    ALOGV("[%s] Signalled EOS on the input port",
2760                         mCodec->mComponentName.c_str());
2761
2762                    mCodec->mPortEOS[kPortIndexInput] = true;
2763                    mCodec->mInputEOSResult = err;
2764                }
2765            } else if (!mCodec->mPortEOS[kPortIndexInput]) {
2766                if (err != ERROR_END_OF_STREAM) {
2767                    ALOGV("[%s] Signalling EOS on the input port "
2768                         "due to error %d",
2769                         mCodec->mComponentName.c_str(), err);
2770                } else {
2771                    ALOGV("[%s] Signalling EOS on the input port",
2772                         mCodec->mComponentName.c_str());
2773                }
2774
2775                ALOGV("[%s] calling emptyBuffer %p signalling EOS",
2776                     mCodec->mComponentName.c_str(), bufferID);
2777
2778                CHECK_EQ(mCodec->mOMX->emptyBuffer(
2779                            mCodec->mNode,
2780                            bufferID,
2781                            0,
2782                            0,
2783                            OMX_BUFFERFLAG_EOS,
2784                            0),
2785                         (status_t)OK);
2786
2787                info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
2788
2789                mCodec->mPortEOS[kPortIndexInput] = true;
2790                mCodec->mInputEOSResult = err;
2791            }
2792            break;
2793
2794            default:
2795                CHECK_EQ((int)mode, (int)FREE_BUFFERS);
2796                break;
2797        }
2798    }
2799}
2800
2801void ACodec::BaseState::getMoreInputDataIfPossible() {
2802    if (mCodec->mPortEOS[kPortIndexInput]) {
2803        return;
2804    }
2805
2806    BufferInfo *eligible = NULL;
2807
2808    for (size_t i = 0; i < mCodec->mBuffers[kPortIndexInput].size(); ++i) {
2809        BufferInfo *info = &mCodec->mBuffers[kPortIndexInput].editItemAt(i);
2810
2811#if 0
2812        if (info->mStatus == BufferInfo::OWNED_BY_UPSTREAM) {
2813            // There's already a "read" pending.
2814            return;
2815        }
2816#endif
2817
2818        if (info->mStatus == BufferInfo::OWNED_BY_US) {
2819            eligible = info;
2820        }
2821    }
2822
2823    if (eligible == NULL) {
2824        return;
2825    }
2826
2827    postFillThisBuffer(eligible);
2828}
2829
2830bool ACodec::BaseState::onOMXFillBufferDone(
2831        IOMX::buffer_id bufferID,
2832        size_t rangeOffset, size_t rangeLength,
2833        OMX_U32 flags,
2834        int64_t timeUs,
2835        void *platformPrivate,
2836        void *dataPtr) {
2837    ALOGV("[%s] onOMXFillBufferDone %p time %lld us, flags = 0x%08lx",
2838         mCodec->mComponentName.c_str(), bufferID, timeUs, flags);
2839
2840    ssize_t index;
2841
2842#if TRACK_BUFFER_TIMING
2843    index = mCodec->mBufferStats.indexOfKey(timeUs);
2844    if (index >= 0) {
2845        ACodec::BufferStats *stats = &mCodec->mBufferStats.editValueAt(index);
2846        stats->mFillBufferDoneTimeUs = ALooper::GetNowUs();
2847
2848        ALOGI("frame PTS %lld: %lld",
2849                timeUs,
2850                stats->mFillBufferDoneTimeUs - stats->mEmptyBufferTimeUs);
2851
2852        mCodec->mBufferStats.removeItemsAt(index);
2853        stats = NULL;
2854    }
2855#endif
2856
2857    BufferInfo *info =
2858        mCodec->findBufferByID(kPortIndexOutput, bufferID, &index);
2859
2860    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_COMPONENT);
2861
2862    info->mStatus = BufferInfo::OWNED_BY_US;
2863
2864    PortMode mode = getPortMode(kPortIndexOutput);
2865
2866    switch (mode) {
2867        case KEEP_BUFFERS:
2868            break;
2869
2870        case RESUBMIT_BUFFERS:
2871        {
2872            if (rangeLength == 0 && !(flags & OMX_BUFFERFLAG_EOS)) {
2873                ALOGV("[%s] calling fillBuffer %p",
2874                     mCodec->mComponentName.c_str(), info->mBufferID);
2875
2876                CHECK_EQ(mCodec->mOMX->fillBuffer(
2877                            mCodec->mNode, info->mBufferID),
2878                         (status_t)OK);
2879
2880                info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
2881                break;
2882            }
2883
2884            if (!mCodec->mIsEncoder && !mCodec->mSentFormat) {
2885                mCodec->sendFormatChange();
2886            }
2887
2888            info->mData->setRange(rangeOffset, rangeLength);
2889#if 0
2890            if (mCodec->mNativeWindow == NULL) {
2891                if (IsIDR(info->mData)) {
2892                    ALOGI("IDR frame");
2893                }
2894            }
2895#endif
2896
2897            if (mCodec->mSkipCutBuffer != NULL) {
2898                mCodec->mSkipCutBuffer->submit(info->mData);
2899            }
2900            info->mData->meta()->setInt64("timeUs", timeUs);
2901
2902            sp<AMessage> notify = mCodec->mNotify->dup();
2903            notify->setInt32("what", ACodec::kWhatDrainThisBuffer);
2904            notify->setPointer("buffer-id", info->mBufferID);
2905            notify->setBuffer("buffer", info->mData);
2906            notify->setInt32("flags", flags);
2907
2908            sp<AMessage> reply =
2909                new AMessage(kWhatOutputBufferDrained, mCodec->id());
2910
2911            reply->setPointer("buffer-id", info->mBufferID);
2912
2913            notify->setMessage("reply", reply);
2914
2915            notify->post();
2916
2917            info->mStatus = BufferInfo::OWNED_BY_DOWNSTREAM;
2918
2919            if (flags & OMX_BUFFERFLAG_EOS) {
2920                ALOGV("[%s] saw output EOS", mCodec->mComponentName.c_str());
2921
2922                sp<AMessage> notify = mCodec->mNotify->dup();
2923                notify->setInt32("what", ACodec::kWhatEOS);
2924                notify->setInt32("err", mCodec->mInputEOSResult);
2925                notify->post();
2926
2927                mCodec->mPortEOS[kPortIndexOutput] = true;
2928            }
2929            break;
2930        }
2931
2932        default:
2933        {
2934            CHECK_EQ((int)mode, (int)FREE_BUFFERS);
2935
2936            CHECK_EQ((status_t)OK,
2937                     mCodec->freeBuffer(kPortIndexOutput, index));
2938            break;
2939        }
2940    }
2941
2942    return true;
2943}
2944
2945void ACodec::BaseState::onOutputBufferDrained(const sp<AMessage> &msg) {
2946    IOMX::buffer_id bufferID;
2947    CHECK(msg->findPointer("buffer-id", &bufferID));
2948
2949    ssize_t index;
2950    BufferInfo *info =
2951        mCodec->findBufferByID(kPortIndexOutput, bufferID, &index);
2952    CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_DOWNSTREAM);
2953
2954    int32_t render;
2955    if (mCodec->mNativeWindow != NULL
2956            && msg->findInt32("render", &render) && render != 0) {
2957        // The client wants this buffer to be rendered.
2958
2959        status_t err;
2960        if ((err = mCodec->mNativeWindow->queueBuffer(
2961                    mCodec->mNativeWindow.get(),
2962                    info->mGraphicBuffer.get(), -1)) == OK) {
2963            info->mStatus = BufferInfo::OWNED_BY_NATIVE_WINDOW;
2964        } else {
2965            mCodec->signalError(OMX_ErrorUndefined, err);
2966            info->mStatus = BufferInfo::OWNED_BY_US;
2967        }
2968    } else {
2969        info->mStatus = BufferInfo::OWNED_BY_US;
2970    }
2971
2972    PortMode mode = getPortMode(kPortIndexOutput);
2973
2974    switch (mode) {
2975        case KEEP_BUFFERS:
2976        {
2977            // XXX fishy, revisit!!! What about the FREE_BUFFERS case below?
2978
2979            if (info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
2980                // We cannot resubmit the buffer we just rendered, dequeue
2981                // the spare instead.
2982
2983                info = mCodec->dequeueBufferFromNativeWindow();
2984            }
2985            break;
2986        }
2987
2988        case RESUBMIT_BUFFERS:
2989        {
2990            if (!mCodec->mPortEOS[kPortIndexOutput]) {
2991                if (info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
2992                    // We cannot resubmit the buffer we just rendered, dequeue
2993                    // the spare instead.
2994
2995                    info = mCodec->dequeueBufferFromNativeWindow();
2996                }
2997
2998                if (info != NULL) {
2999                    ALOGV("[%s] calling fillBuffer %p",
3000                         mCodec->mComponentName.c_str(), info->mBufferID);
3001
3002                    CHECK_EQ(mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID),
3003                             (status_t)OK);
3004
3005                    info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
3006                }
3007            }
3008            break;
3009        }
3010
3011        default:
3012        {
3013            CHECK_EQ((int)mode, (int)FREE_BUFFERS);
3014
3015            CHECK_EQ((status_t)OK,
3016                     mCodec->freeBuffer(kPortIndexOutput, index));
3017            break;
3018        }
3019    }
3020}
3021
3022////////////////////////////////////////////////////////////////////////////////
3023
3024ACodec::UninitializedState::UninitializedState(ACodec *codec)
3025    : BaseState(codec) {
3026}
3027
3028void ACodec::UninitializedState::stateEntered() {
3029    ALOGV("Now uninitialized");
3030}
3031
3032bool ACodec::UninitializedState::onMessageReceived(const sp<AMessage> &msg) {
3033    bool handled = false;
3034
3035    switch (msg->what()) {
3036        case ACodec::kWhatSetup:
3037        {
3038            onSetup(msg);
3039
3040            handled = true;
3041            break;
3042        }
3043
3044        case ACodec::kWhatAllocateComponent:
3045        {
3046            onAllocateComponent(msg);
3047            handled = true;
3048            break;
3049        }
3050
3051        case ACodec::kWhatShutdown:
3052        {
3053            int32_t keepComponentAllocated;
3054            CHECK(msg->findInt32(
3055                        "keepComponentAllocated", &keepComponentAllocated));
3056            CHECK(!keepComponentAllocated);
3057
3058            sp<AMessage> notify = mCodec->mNotify->dup();
3059            notify->setInt32("what", ACodec::kWhatShutdownCompleted);
3060            notify->post();
3061
3062            handled = true;
3063            break;
3064        }
3065
3066        case ACodec::kWhatFlush:
3067        {
3068            sp<AMessage> notify = mCodec->mNotify->dup();
3069            notify->setInt32("what", ACodec::kWhatFlushCompleted);
3070            notify->post();
3071
3072            handled = true;
3073            break;
3074        }
3075
3076        default:
3077            return BaseState::onMessageReceived(msg);
3078    }
3079
3080    return handled;
3081}
3082
3083void ACodec::UninitializedState::onSetup(
3084        const sp<AMessage> &msg) {
3085    if (onAllocateComponent(msg)
3086            && mCodec->mLoadedState->onConfigureComponent(msg)) {
3087        mCodec->mLoadedState->onStart();
3088    }
3089}
3090
3091bool ACodec::UninitializedState::onAllocateComponent(const sp<AMessage> &msg) {
3092    ALOGV("onAllocateComponent");
3093
3094    CHECK(mCodec->mNode == NULL);
3095
3096    OMXClient client;
3097    CHECK_EQ(client.connect(), (status_t)OK);
3098
3099    sp<IOMX> omx = client.interface();
3100
3101    Vector<OMXCodec::CodecNameAndQuirks> matchingCodecs;
3102
3103    AString mime;
3104
3105    AString componentName;
3106    uint32_t quirks = 0;
3107    if (msg->findString("componentName", &componentName)) {
3108        ssize_t index = matchingCodecs.add();
3109        OMXCodec::CodecNameAndQuirks *entry = &matchingCodecs.editItemAt(index);
3110        entry->mName = String8(componentName.c_str());
3111
3112        if (!OMXCodec::findCodecQuirks(
3113                    componentName.c_str(), &entry->mQuirks)) {
3114            entry->mQuirks = 0;
3115        }
3116    } else {
3117        CHECK(msg->findString("mime", &mime));
3118
3119        int32_t encoder;
3120        if (!msg->findInt32("encoder", &encoder)) {
3121            encoder = false;
3122        }
3123
3124        OMXCodec::findMatchingCodecs(
3125                mime.c_str(),
3126                encoder, // createEncoder
3127                NULL,  // matchComponentName
3128                0,     // flags
3129                &matchingCodecs);
3130    }
3131
3132    sp<CodecObserver> observer = new CodecObserver;
3133    IOMX::node_id node = NULL;
3134
3135    for (size_t matchIndex = 0; matchIndex < matchingCodecs.size();
3136            ++matchIndex) {
3137        componentName = matchingCodecs.itemAt(matchIndex).mName.string();
3138        quirks = matchingCodecs.itemAt(matchIndex).mQuirks;
3139
3140        pid_t tid = androidGetTid();
3141        int prevPriority = androidGetThreadPriority(tid);
3142        androidSetThreadPriority(tid, ANDROID_PRIORITY_FOREGROUND);
3143        status_t err = omx->allocateNode(componentName.c_str(), observer, &node);
3144        androidSetThreadPriority(tid, prevPriority);
3145
3146        if (err == OK) {
3147            break;
3148        }
3149
3150        node = NULL;
3151    }
3152
3153    if (node == NULL) {
3154        if (!mime.empty()) {
3155            ALOGE("Unable to instantiate a decoder for type '%s'.",
3156                 mime.c_str());
3157        } else {
3158            ALOGE("Unable to instantiate decoder '%s'.", componentName.c_str());
3159        }
3160
3161        mCodec->signalError(OMX_ErrorComponentNotFound);
3162        return false;
3163    }
3164
3165    sp<AMessage> notify = new AMessage(kWhatOMXMessage, mCodec->id());
3166    observer->setNotificationMessage(notify);
3167
3168    mCodec->mComponentName = componentName;
3169    mCodec->mFlags = 0;
3170
3171    if (componentName.endsWith(".secure")) {
3172        mCodec->mFlags |= kFlagIsSecure;
3173    }
3174
3175    mCodec->mQuirks = quirks;
3176    mCodec->mOMX = omx;
3177    mCodec->mNode = node;
3178
3179    {
3180        sp<AMessage> notify = mCodec->mNotify->dup();
3181        notify->setInt32("what", ACodec::kWhatComponentAllocated);
3182        notify->setString("componentName", mCodec->mComponentName.c_str());
3183        notify->post();
3184    }
3185
3186    mCodec->changeState(mCodec->mLoadedState);
3187
3188    return true;
3189}
3190
3191////////////////////////////////////////////////////////////////////////////////
3192
3193ACodec::LoadedState::LoadedState(ACodec *codec)
3194    : BaseState(codec) {
3195}
3196
3197void ACodec::LoadedState::stateEntered() {
3198    ALOGV("[%s] Now Loaded", mCodec->mComponentName.c_str());
3199
3200    mCodec->mPortEOS[kPortIndexInput] =
3201        mCodec->mPortEOS[kPortIndexOutput] = false;
3202
3203    mCodec->mInputEOSResult = OK;
3204
3205    if (mCodec->mShutdownInProgress) {
3206        bool keepComponentAllocated = mCodec->mKeepComponentAllocated;
3207
3208        mCodec->mShutdownInProgress = false;
3209        mCodec->mKeepComponentAllocated = false;
3210
3211        onShutdown(keepComponentAllocated);
3212    }
3213}
3214
3215void ACodec::LoadedState::onShutdown(bool keepComponentAllocated) {
3216    if (!keepComponentAllocated) {
3217        CHECK_EQ(mCodec->mOMX->freeNode(mCodec->mNode), (status_t)OK);
3218
3219        mCodec->mNativeWindow.clear();
3220        mCodec->mNode = NULL;
3221        mCodec->mOMX.clear();
3222        mCodec->mQuirks = 0;
3223        mCodec->mFlags = 0;
3224        mCodec->mComponentName.clear();
3225
3226        mCodec->changeState(mCodec->mUninitializedState);
3227    }
3228
3229    sp<AMessage> notify = mCodec->mNotify->dup();
3230    notify->setInt32("what", ACodec::kWhatShutdownCompleted);
3231    notify->post();
3232}
3233
3234bool ACodec::LoadedState::onMessageReceived(const sp<AMessage> &msg) {
3235    bool handled = false;
3236
3237    switch (msg->what()) {
3238        case ACodec::kWhatConfigureComponent:
3239        {
3240            onConfigureComponent(msg);
3241            handled = true;
3242            break;
3243        }
3244
3245        case ACodec::kWhatCreateInputSurface:
3246        {
3247            onCreateInputSurface(msg);
3248            handled = true;
3249            break;
3250        }
3251
3252        case ACodec::kWhatStart:
3253        {
3254            onStart();
3255            handled = true;
3256            break;
3257        }
3258
3259        case ACodec::kWhatShutdown:
3260        {
3261            int32_t keepComponentAllocated;
3262            CHECK(msg->findInt32(
3263                        "keepComponentAllocated", &keepComponentAllocated));
3264
3265            onShutdown(keepComponentAllocated);
3266
3267            handled = true;
3268            break;
3269        }
3270
3271        case ACodec::kWhatFlush:
3272        {
3273            sp<AMessage> notify = mCodec->mNotify->dup();
3274            notify->setInt32("what", ACodec::kWhatFlushCompleted);
3275            notify->post();
3276
3277            handled = true;
3278            break;
3279        }
3280
3281        default:
3282            return BaseState::onMessageReceived(msg);
3283    }
3284
3285    return handled;
3286}
3287
3288bool ACodec::LoadedState::onConfigureComponent(
3289        const sp<AMessage> &msg) {
3290    ALOGV("onConfigureComponent");
3291
3292    CHECK(mCodec->mNode != NULL);
3293
3294    AString mime;
3295    CHECK(msg->findString("mime", &mime));
3296
3297    status_t err = mCodec->configureCodec(mime.c_str(), msg);
3298
3299    if (err != OK) {
3300        ALOGE("[%s] configureCodec returning error %d",
3301              mCodec->mComponentName.c_str(), err);
3302
3303        mCodec->signalError(OMX_ErrorUndefined, err);
3304        return false;
3305    }
3306
3307    sp<RefBase> obj;
3308    if (msg->findObject("native-window", &obj)
3309            && strncmp("OMX.google.", mCodec->mComponentName.c_str(), 11)) {
3310        sp<NativeWindowWrapper> nativeWindow(
3311                static_cast<NativeWindowWrapper *>(obj.get()));
3312        CHECK(nativeWindow != NULL);
3313        mCodec->mNativeWindow = nativeWindow->getNativeWindow();
3314
3315        native_window_set_scaling_mode(
3316                mCodec->mNativeWindow.get(),
3317                NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW);
3318    }
3319    CHECK_EQ((status_t)OK, mCodec->initNativeWindow());
3320
3321    {
3322        sp<AMessage> notify = mCodec->mNotify->dup();
3323        notify->setInt32("what", ACodec::kWhatComponentConfigured);
3324        notify->post();
3325    }
3326
3327    return true;
3328}
3329
3330void ACodec::LoadedState::onCreateInputSurface(
3331        const sp<AMessage> &msg) {
3332    ALOGV("onCreateInputSurface");
3333
3334    sp<AMessage> notify = mCodec->mNotify->dup();
3335    notify->setInt32("what", ACodec::kWhatInputSurfaceCreated);
3336
3337    sp<IGraphicBufferProducer> bufferProducer;
3338    status_t err;
3339
3340    err = mCodec->mOMX->createInputSurface(mCodec->mNode, kPortIndexInput,
3341            &bufferProducer);
3342    if (err == OK) {
3343        notify->setObject("input-surface",
3344                new BufferProducerWrapper(bufferProducer));
3345    } else {
3346        // Can't use mCodec->signalError() here -- MediaCodec won't forward
3347        // the error through because it's in the "configured" state.  We
3348        // send a kWhatInputSurfaceCreated with an error value instead.
3349        ALOGE("[%s] onCreateInputSurface returning error %d",
3350                mCodec->mComponentName.c_str(), err);
3351        notify->setInt32("err", err);
3352    }
3353    notify->post();
3354}
3355
3356void ACodec::LoadedState::onStart() {
3357    ALOGV("onStart");
3358
3359    CHECK_EQ(mCodec->mOMX->sendCommand(
3360                mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle),
3361             (status_t)OK);
3362
3363    mCodec->changeState(mCodec->mLoadedToIdleState);
3364}
3365
3366////////////////////////////////////////////////////////////////////////////////
3367
3368ACodec::LoadedToIdleState::LoadedToIdleState(ACodec *codec)
3369    : BaseState(codec) {
3370}
3371
3372void ACodec::LoadedToIdleState::stateEntered() {
3373    ALOGV("[%s] Now Loaded->Idle", mCodec->mComponentName.c_str());
3374
3375    status_t err;
3376    if ((err = allocateBuffers()) != OK) {
3377        ALOGE("Failed to allocate buffers after transitioning to IDLE state "
3378             "(error 0x%08x)",
3379             err);
3380
3381        mCodec->signalError(OMX_ErrorUndefined, err);
3382
3383        mCodec->changeState(mCodec->mLoadedState);
3384    }
3385}
3386
3387status_t ACodec::LoadedToIdleState::allocateBuffers() {
3388    status_t err = mCodec->allocateBuffersOnPort(kPortIndexInput);
3389
3390    if (err != OK) {
3391        return err;
3392    }
3393
3394    return mCodec->allocateBuffersOnPort(kPortIndexOutput);
3395}
3396
3397bool ACodec::LoadedToIdleState::onMessageReceived(const sp<AMessage> &msg) {
3398    switch (msg->what()) {
3399        case kWhatShutdown:
3400        {
3401            mCodec->deferMessage(msg);
3402            return true;
3403        }
3404
3405        case kWhatSignalEndOfInputStream:
3406        {
3407            mCodec->onSignalEndOfInputStream();
3408            return true;
3409        }
3410
3411        case kWhatResume:
3412        {
3413            // We'll be active soon enough.
3414            return true;
3415        }
3416
3417        case kWhatFlush:
3418        {
3419            // We haven't even started yet, so we're flushed alright...
3420            sp<AMessage> notify = mCodec->mNotify->dup();
3421            notify->setInt32("what", ACodec::kWhatFlushCompleted);
3422            notify->post();
3423            return true;
3424        }
3425
3426        default:
3427            return BaseState::onMessageReceived(msg);
3428    }
3429}
3430
3431bool ACodec::LoadedToIdleState::onOMXEvent(
3432        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
3433    switch (event) {
3434        case OMX_EventCmdComplete:
3435        {
3436            CHECK_EQ(data1, (OMX_U32)OMX_CommandStateSet);
3437            CHECK_EQ(data2, (OMX_U32)OMX_StateIdle);
3438
3439            CHECK_EQ(mCodec->mOMX->sendCommand(
3440                        mCodec->mNode, OMX_CommandStateSet, OMX_StateExecuting),
3441                     (status_t)OK);
3442
3443            mCodec->changeState(mCodec->mIdleToExecutingState);
3444
3445            return true;
3446        }
3447
3448        default:
3449            return BaseState::onOMXEvent(event, data1, data2);
3450    }
3451}
3452
3453////////////////////////////////////////////////////////////////////////////////
3454
3455ACodec::IdleToExecutingState::IdleToExecutingState(ACodec *codec)
3456    : BaseState(codec) {
3457}
3458
3459void ACodec::IdleToExecutingState::stateEntered() {
3460    ALOGV("[%s] Now Idle->Executing", mCodec->mComponentName.c_str());
3461}
3462
3463bool ACodec::IdleToExecutingState::onMessageReceived(const sp<AMessage> &msg) {
3464    switch (msg->what()) {
3465        case kWhatShutdown:
3466        {
3467            mCodec->deferMessage(msg);
3468            return true;
3469        }
3470
3471        case kWhatResume:
3472        {
3473            // We'll be active soon enough.
3474            return true;
3475        }
3476
3477        case kWhatFlush:
3478        {
3479            // We haven't even started yet, so we're flushed alright...
3480            sp<AMessage> notify = mCodec->mNotify->dup();
3481            notify->setInt32("what", ACodec::kWhatFlushCompleted);
3482            notify->post();
3483
3484            return true;
3485        }
3486
3487        case kWhatSignalEndOfInputStream:
3488        {
3489            mCodec->onSignalEndOfInputStream();
3490            return true;
3491        }
3492
3493        default:
3494            return BaseState::onMessageReceived(msg);
3495    }
3496}
3497
3498bool ACodec::IdleToExecutingState::onOMXEvent(
3499        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
3500    switch (event) {
3501        case OMX_EventCmdComplete:
3502        {
3503            CHECK_EQ(data1, (OMX_U32)OMX_CommandStateSet);
3504            CHECK_EQ(data2, (OMX_U32)OMX_StateExecuting);
3505
3506            mCodec->mExecutingState->resume();
3507            mCodec->changeState(mCodec->mExecutingState);
3508
3509            return true;
3510        }
3511
3512        default:
3513            return BaseState::onOMXEvent(event, data1, data2);
3514    }
3515}
3516
3517////////////////////////////////////////////////////////////////////////////////
3518
3519ACodec::ExecutingState::ExecutingState(ACodec *codec)
3520    : BaseState(codec),
3521      mActive(false) {
3522}
3523
3524ACodec::BaseState::PortMode ACodec::ExecutingState::getPortMode(
3525        OMX_U32 portIndex) {
3526    return RESUBMIT_BUFFERS;
3527}
3528
3529void ACodec::ExecutingState::submitOutputBuffers() {
3530    for (size_t i = 0; i < mCodec->mBuffers[kPortIndexOutput].size(); ++i) {
3531        BufferInfo *info = &mCodec->mBuffers[kPortIndexOutput].editItemAt(i);
3532
3533        if (mCodec->mNativeWindow != NULL) {
3534            CHECK(info->mStatus == BufferInfo::OWNED_BY_US
3535                    || info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW);
3536
3537            if (info->mStatus == BufferInfo::OWNED_BY_NATIVE_WINDOW) {
3538                continue;
3539            }
3540        } else {
3541            CHECK_EQ((int)info->mStatus, (int)BufferInfo::OWNED_BY_US);
3542        }
3543
3544        ALOGV("[%s] calling fillBuffer %p",
3545             mCodec->mComponentName.c_str(), info->mBufferID);
3546
3547        CHECK_EQ(mCodec->mOMX->fillBuffer(mCodec->mNode, info->mBufferID),
3548                 (status_t)OK);
3549
3550        info->mStatus = BufferInfo::OWNED_BY_COMPONENT;
3551    }
3552}
3553
3554void ACodec::ExecutingState::resume() {
3555    if (mActive) {
3556        ALOGV("[%s] We're already active, no need to resume.",
3557             mCodec->mComponentName.c_str());
3558
3559        return;
3560    }
3561
3562    submitOutputBuffers();
3563
3564    // Post the first input buffer.
3565    CHECK_GT(mCodec->mBuffers[kPortIndexInput].size(), 0u);
3566    BufferInfo *info = &mCodec->mBuffers[kPortIndexInput].editItemAt(0);
3567
3568    postFillThisBuffer(info);
3569
3570    mActive = true;
3571}
3572
3573void ACodec::ExecutingState::stateEntered() {
3574    ALOGV("[%s] Now Executing", mCodec->mComponentName.c_str());
3575
3576    mCodec->processDeferredMessages();
3577}
3578
3579bool ACodec::ExecutingState::onMessageReceived(const sp<AMessage> &msg) {
3580    bool handled = false;
3581
3582    switch (msg->what()) {
3583        case kWhatShutdown:
3584        {
3585            int32_t keepComponentAllocated;
3586            CHECK(msg->findInt32(
3587                        "keepComponentAllocated", &keepComponentAllocated));
3588
3589            mCodec->mShutdownInProgress = true;
3590            mCodec->mKeepComponentAllocated = keepComponentAllocated;
3591
3592            mActive = false;
3593
3594            CHECK_EQ(mCodec->mOMX->sendCommand(
3595                        mCodec->mNode, OMX_CommandStateSet, OMX_StateIdle),
3596                     (status_t)OK);
3597
3598            mCodec->changeState(mCodec->mExecutingToIdleState);
3599
3600            handled = true;
3601            break;
3602        }
3603
3604        case kWhatFlush:
3605        {
3606            ALOGV("[%s] ExecutingState flushing now "
3607                 "(codec owns %d/%d input, %d/%d output).",
3608                    mCodec->mComponentName.c_str(),
3609                    mCodec->countBuffersOwnedByComponent(kPortIndexInput),
3610                    mCodec->mBuffers[kPortIndexInput].size(),
3611                    mCodec->countBuffersOwnedByComponent(kPortIndexOutput),
3612                    mCodec->mBuffers[kPortIndexOutput].size());
3613
3614            mActive = false;
3615
3616            CHECK_EQ(mCodec->mOMX->sendCommand(
3617                        mCodec->mNode, OMX_CommandFlush, OMX_ALL),
3618                     (status_t)OK);
3619
3620            mCodec->changeState(mCodec->mFlushingState);
3621
3622            handled = true;
3623            break;
3624        }
3625
3626        case kWhatResume:
3627        {
3628            resume();
3629
3630            handled = true;
3631            break;
3632        }
3633
3634        case kWhatRequestIDRFrame:
3635        {
3636            status_t err = mCodec->requestIDRFrame();
3637            if (err != OK) {
3638                ALOGW("Requesting an IDR frame failed.");
3639            }
3640
3641            handled = true;
3642            break;
3643        }
3644
3645        case kWhatSetParameters:
3646        {
3647            sp<AMessage> params;
3648            CHECK(msg->findMessage("params", &params));
3649
3650            status_t err = mCodec->setParameters(params);
3651
3652            sp<AMessage> reply;
3653            if (msg->findMessage("reply", &reply)) {
3654                reply->setInt32("err", err);
3655                reply->post();
3656            }
3657
3658            handled = true;
3659            break;
3660        }
3661
3662        case ACodec::kWhatSignalEndOfInputStream:
3663        {
3664            mCodec->onSignalEndOfInputStream();
3665            handled = true;
3666            break;
3667        }
3668
3669        default:
3670            handled = BaseState::onMessageReceived(msg);
3671            break;
3672    }
3673
3674    return handled;
3675}
3676
3677status_t ACodec::setParameters(const sp<AMessage> &params) {
3678    int32_t videoBitrate;
3679    if (params->findInt32("videoBitrate", &videoBitrate)) {
3680        OMX_VIDEO_CONFIG_BITRATETYPE configParams;
3681        InitOMXParams(&configParams);
3682        configParams.nPortIndex = kPortIndexOutput;
3683        configParams.nEncodeBitrate = videoBitrate;
3684
3685        status_t err = mOMX->setConfig(
3686                mNode,
3687                OMX_IndexConfigVideoBitrate,
3688                &configParams,
3689                sizeof(configParams));
3690
3691        if (err != OK) {
3692            ALOGE("setConfig(OMX_IndexConfigVideoBitrate, %d) failed w/ err %d",
3693                   videoBitrate, err);
3694
3695            return err;
3696        }
3697    }
3698
3699    return OK;
3700}
3701
3702void ACodec::onSignalEndOfInputStream() {
3703    sp<AMessage> notify = mNotify->dup();
3704    notify->setInt32("what", ACodec::kWhatSignaledInputEOS);
3705
3706    status_t err = mOMX->signalEndOfInputStream(mNode);
3707    if (err != OK) {
3708        notify->setInt32("err", err);
3709    }
3710    notify->post();
3711}
3712
3713bool ACodec::ExecutingState::onOMXEvent(
3714        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
3715    switch (event) {
3716        case OMX_EventPortSettingsChanged:
3717        {
3718            CHECK_EQ(data1, (OMX_U32)kPortIndexOutput);
3719
3720            if (data2 == 0 || data2 == OMX_IndexParamPortDefinition) {
3721                CHECK_EQ(mCodec->mOMX->sendCommand(
3722                            mCodec->mNode,
3723                            OMX_CommandPortDisable, kPortIndexOutput),
3724                         (status_t)OK);
3725
3726                mCodec->freeOutputBuffersNotOwnedByComponent();
3727
3728                mCodec->changeState(mCodec->mOutputPortSettingsChangedState);
3729            } else if (data2 == OMX_IndexConfigCommonOutputCrop) {
3730                mCodec->mSentFormat = false;
3731            } else {
3732                ALOGV("[%s] OMX_EventPortSettingsChanged 0x%08lx",
3733                     mCodec->mComponentName.c_str(), data2);
3734            }
3735
3736            return true;
3737        }
3738
3739        case OMX_EventBufferFlag:
3740        {
3741            return true;
3742        }
3743
3744        default:
3745            return BaseState::onOMXEvent(event, data1, data2);
3746    }
3747}
3748
3749////////////////////////////////////////////////////////////////////////////////
3750
3751ACodec::OutputPortSettingsChangedState::OutputPortSettingsChangedState(
3752        ACodec *codec)
3753    : BaseState(codec) {
3754}
3755
3756ACodec::BaseState::PortMode ACodec::OutputPortSettingsChangedState::getPortMode(
3757        OMX_U32 portIndex) {
3758    if (portIndex == kPortIndexOutput) {
3759        return FREE_BUFFERS;
3760    }
3761
3762    CHECK_EQ(portIndex, (OMX_U32)kPortIndexInput);
3763
3764    return RESUBMIT_BUFFERS;
3765}
3766
3767bool ACodec::OutputPortSettingsChangedState::onMessageReceived(
3768        const sp<AMessage> &msg) {
3769    bool handled = false;
3770
3771    switch (msg->what()) {
3772        case kWhatFlush:
3773        case kWhatShutdown:
3774        case kWhatResume:
3775        {
3776            if (msg->what() == kWhatResume) {
3777                ALOGV("[%s] Deferring resume", mCodec->mComponentName.c_str());
3778            }
3779
3780            mCodec->deferMessage(msg);
3781            handled = true;
3782            break;
3783        }
3784
3785        default:
3786            handled = BaseState::onMessageReceived(msg);
3787            break;
3788    }
3789
3790    return handled;
3791}
3792
3793void ACodec::OutputPortSettingsChangedState::stateEntered() {
3794    ALOGV("[%s] Now handling output port settings change",
3795         mCodec->mComponentName.c_str());
3796}
3797
3798bool ACodec::OutputPortSettingsChangedState::onOMXEvent(
3799        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
3800    switch (event) {
3801        case OMX_EventCmdComplete:
3802        {
3803            if (data1 == (OMX_U32)OMX_CommandPortDisable) {
3804                CHECK_EQ(data2, (OMX_U32)kPortIndexOutput);
3805
3806                ALOGV("[%s] Output port now disabled.",
3807                        mCodec->mComponentName.c_str());
3808
3809                CHECK(mCodec->mBuffers[kPortIndexOutput].isEmpty());
3810                mCodec->mDealer[kPortIndexOutput].clear();
3811
3812                CHECK_EQ(mCodec->mOMX->sendCommand(
3813                            mCodec->mNode, OMX_CommandPortEnable, kPortIndexOutput),
3814                         (status_t)OK);
3815
3816                status_t err;
3817                if ((err = mCodec->allocateBuffersOnPort(
3818                                kPortIndexOutput)) != OK) {
3819                    ALOGE("Failed to allocate output port buffers after "
3820                         "port reconfiguration (error 0x%08x)",
3821                         err);
3822
3823                    mCodec->signalError(OMX_ErrorUndefined, err);
3824
3825                    // This is technically not correct, but appears to be
3826                    // the only way to free the component instance.
3827                    // Controlled transitioning from excecuting->idle
3828                    // and idle->loaded seem impossible probably because
3829                    // the output port never finishes re-enabling.
3830                    mCodec->mShutdownInProgress = true;
3831                    mCodec->mKeepComponentAllocated = false;
3832                    mCodec->changeState(mCodec->mLoadedState);
3833                }
3834
3835                return true;
3836            } else if (data1 == (OMX_U32)OMX_CommandPortEnable) {
3837                CHECK_EQ(data2, (OMX_U32)kPortIndexOutput);
3838
3839                mCodec->mSentFormat = false;
3840
3841                ALOGV("[%s] Output port now reenabled.",
3842                        mCodec->mComponentName.c_str());
3843
3844                if (mCodec->mExecutingState->active()) {
3845                    mCodec->mExecutingState->submitOutputBuffers();
3846                }
3847
3848                mCodec->changeState(mCodec->mExecutingState);
3849
3850                return true;
3851            }
3852
3853            return false;
3854        }
3855
3856        default:
3857            return false;
3858    }
3859}
3860
3861////////////////////////////////////////////////////////////////////////////////
3862
3863ACodec::ExecutingToIdleState::ExecutingToIdleState(ACodec *codec)
3864    : BaseState(codec),
3865      mComponentNowIdle(false) {
3866}
3867
3868bool ACodec::ExecutingToIdleState::onMessageReceived(const sp<AMessage> &msg) {
3869    bool handled = false;
3870
3871    switch (msg->what()) {
3872        case kWhatFlush:
3873        {
3874            // Don't send me a flush request if you previously wanted me
3875            // to shutdown.
3876            TRESPASS();
3877            break;
3878        }
3879
3880        case kWhatShutdown:
3881        {
3882            // We're already doing that...
3883
3884            handled = true;
3885            break;
3886        }
3887
3888        default:
3889            handled = BaseState::onMessageReceived(msg);
3890            break;
3891    }
3892
3893    return handled;
3894}
3895
3896void ACodec::ExecutingToIdleState::stateEntered() {
3897    ALOGV("[%s] Now Executing->Idle", mCodec->mComponentName.c_str());
3898
3899    mComponentNowIdle = false;
3900    mCodec->mSentFormat = false;
3901}
3902
3903bool ACodec::ExecutingToIdleState::onOMXEvent(
3904        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
3905    switch (event) {
3906        case OMX_EventCmdComplete:
3907        {
3908            CHECK_EQ(data1, (OMX_U32)OMX_CommandStateSet);
3909            CHECK_EQ(data2, (OMX_U32)OMX_StateIdle);
3910
3911            mComponentNowIdle = true;
3912
3913            changeStateIfWeOwnAllBuffers();
3914
3915            return true;
3916        }
3917
3918        case OMX_EventPortSettingsChanged:
3919        case OMX_EventBufferFlag:
3920        {
3921            // We're shutting down and don't care about this anymore.
3922            return true;
3923        }
3924
3925        default:
3926            return BaseState::onOMXEvent(event, data1, data2);
3927    }
3928}
3929
3930void ACodec::ExecutingToIdleState::changeStateIfWeOwnAllBuffers() {
3931    if (mComponentNowIdle && mCodec->allYourBuffersAreBelongToUs()) {
3932        CHECK_EQ(mCodec->mOMX->sendCommand(
3933                    mCodec->mNode, OMX_CommandStateSet, OMX_StateLoaded),
3934                 (status_t)OK);
3935
3936        CHECK_EQ(mCodec->freeBuffersOnPort(kPortIndexInput), (status_t)OK);
3937        CHECK_EQ(mCodec->freeBuffersOnPort(kPortIndexOutput), (status_t)OK);
3938
3939        if (mCodec->mFlags & kFlagIsSecure && mCodec->mNativeWindow != NULL) {
3940            // We push enough 1x1 blank buffers to ensure that one of
3941            // them has made it to the display.  This allows the OMX
3942            // component teardown to zero out any protected buffers
3943            // without the risk of scanning out one of those buffers.
3944            mCodec->pushBlankBuffersToNativeWindow();
3945        }
3946
3947        mCodec->changeState(mCodec->mIdleToLoadedState);
3948    }
3949}
3950
3951void ACodec::ExecutingToIdleState::onInputBufferFilled(
3952        const sp<AMessage> &msg) {
3953    BaseState::onInputBufferFilled(msg);
3954
3955    changeStateIfWeOwnAllBuffers();
3956}
3957
3958void ACodec::ExecutingToIdleState::onOutputBufferDrained(
3959        const sp<AMessage> &msg) {
3960    BaseState::onOutputBufferDrained(msg);
3961
3962    changeStateIfWeOwnAllBuffers();
3963}
3964
3965////////////////////////////////////////////////////////////////////////////////
3966
3967ACodec::IdleToLoadedState::IdleToLoadedState(ACodec *codec)
3968    : BaseState(codec) {
3969}
3970
3971bool ACodec::IdleToLoadedState::onMessageReceived(const sp<AMessage> &msg) {
3972    bool handled = false;
3973
3974    switch (msg->what()) {
3975        case kWhatShutdown:
3976        {
3977            // We're already doing that...
3978
3979            handled = true;
3980            break;
3981        }
3982
3983        case kWhatFlush:
3984        {
3985            // Don't send me a flush request if you previously wanted me
3986            // to shutdown.
3987            TRESPASS();
3988            break;
3989        }
3990
3991        default:
3992            handled = BaseState::onMessageReceived(msg);
3993            break;
3994    }
3995
3996    return handled;
3997}
3998
3999void ACodec::IdleToLoadedState::stateEntered() {
4000    ALOGV("[%s] Now Idle->Loaded", mCodec->mComponentName.c_str());
4001}
4002
4003bool ACodec::IdleToLoadedState::onOMXEvent(
4004        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
4005    switch (event) {
4006        case OMX_EventCmdComplete:
4007        {
4008            CHECK_EQ(data1, (OMX_U32)OMX_CommandStateSet);
4009            CHECK_EQ(data2, (OMX_U32)OMX_StateLoaded);
4010
4011            mCodec->changeState(mCodec->mLoadedState);
4012
4013            return true;
4014        }
4015
4016        default:
4017            return BaseState::onOMXEvent(event, data1, data2);
4018    }
4019}
4020
4021////////////////////////////////////////////////////////////////////////////////
4022
4023ACodec::FlushingState::FlushingState(ACodec *codec)
4024    : BaseState(codec) {
4025}
4026
4027void ACodec::FlushingState::stateEntered() {
4028    ALOGV("[%s] Now Flushing", mCodec->mComponentName.c_str());
4029
4030    mFlushComplete[kPortIndexInput] = mFlushComplete[kPortIndexOutput] = false;
4031}
4032
4033bool ACodec::FlushingState::onMessageReceived(const sp<AMessage> &msg) {
4034    bool handled = false;
4035
4036    switch (msg->what()) {
4037        case kWhatShutdown:
4038        {
4039            mCodec->deferMessage(msg);
4040            break;
4041        }
4042
4043        case kWhatFlush:
4044        {
4045            // We're already doing this right now.
4046            handled = true;
4047            break;
4048        }
4049
4050        default:
4051            handled = BaseState::onMessageReceived(msg);
4052            break;
4053    }
4054
4055    return handled;
4056}
4057
4058bool ACodec::FlushingState::onOMXEvent(
4059        OMX_EVENTTYPE event, OMX_U32 data1, OMX_U32 data2) {
4060    ALOGV("[%s] FlushingState onOMXEvent(%d,%ld)",
4061            mCodec->mComponentName.c_str(), event, data1);
4062
4063    switch (event) {
4064        case OMX_EventCmdComplete:
4065        {
4066            CHECK_EQ(data1, (OMX_U32)OMX_CommandFlush);
4067
4068            if (data2 == kPortIndexInput || data2 == kPortIndexOutput) {
4069                CHECK(!mFlushComplete[data2]);
4070                mFlushComplete[data2] = true;
4071
4072                if (mFlushComplete[kPortIndexInput]
4073                        && mFlushComplete[kPortIndexOutput]) {
4074                    changeStateIfWeOwnAllBuffers();
4075                }
4076            } else {
4077                CHECK_EQ(data2, OMX_ALL);
4078                CHECK(mFlushComplete[kPortIndexInput]);
4079                CHECK(mFlushComplete[kPortIndexOutput]);
4080
4081                changeStateIfWeOwnAllBuffers();
4082            }
4083
4084            return true;
4085        }
4086
4087        case OMX_EventPortSettingsChanged:
4088        {
4089            sp<AMessage> msg = new AMessage(kWhatOMXMessage, mCodec->id());
4090            msg->setInt32("type", omx_message::EVENT);
4091            msg->setPointer("node", mCodec->mNode);
4092            msg->setInt32("event", event);
4093            msg->setInt32("data1", data1);
4094            msg->setInt32("data2", data2);
4095
4096            ALOGV("[%s] Deferring OMX_EventPortSettingsChanged",
4097                 mCodec->mComponentName.c_str());
4098
4099            mCodec->deferMessage(msg);
4100
4101            return true;
4102        }
4103
4104        default:
4105            return BaseState::onOMXEvent(event, data1, data2);
4106    }
4107
4108    return true;
4109}
4110
4111void ACodec::FlushingState::onOutputBufferDrained(const sp<AMessage> &msg) {
4112    BaseState::onOutputBufferDrained(msg);
4113
4114    changeStateIfWeOwnAllBuffers();
4115}
4116
4117void ACodec::FlushingState::onInputBufferFilled(const sp<AMessage> &msg) {
4118    BaseState::onInputBufferFilled(msg);
4119
4120    changeStateIfWeOwnAllBuffers();
4121}
4122
4123void ACodec::FlushingState::changeStateIfWeOwnAllBuffers() {
4124    if (mFlushComplete[kPortIndexInput]
4125            && mFlushComplete[kPortIndexOutput]
4126            && mCodec->allYourBuffersAreBelongToUs()) {
4127        sp<AMessage> notify = mCodec->mNotify->dup();
4128        notify->setInt32("what", ACodec::kWhatFlushCompleted);
4129        notify->post();
4130
4131        mCodec->mPortEOS[kPortIndexInput] =
4132            mCodec->mPortEOS[kPortIndexOutput] = false;
4133
4134        mCodec->mInputEOSResult = OK;
4135
4136        mCodec->changeState(mCodec->mExecutingState);
4137    }
4138}
4139
4140}  // namespace android
4141