SoftMPEG4Encoder.cpp revision 87f8cbb223ee516803dbb99699320c2484cbf3ba 
1/*
2 * Copyright (C) 2012 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17//#define LOG_NDEBUG 0
18#define LOG_TAG "SoftMPEG4Encoder"
19#include <utils/Log.h>
20#include <utils/misc.h>
21
22#include "mp4enc_api.h"
23#include "OMX_Video.h"
24
25#include <HardwareAPI.h>
26#include <MetadataBufferType.h>
27#include <media/stagefright/foundation/ADebug.h>
28#include <media/stagefright/foundation/AUtils.h>
29#include <media/stagefright/MediaDefs.h>
30#include <media/stagefright/MediaErrors.h>
31#include <media/stagefright/MetaData.h>
32#include <media/stagefright/Utils.h>
33#include <ui/Rect.h>
34#include <ui/GraphicBufferMapper.h>
35
36#include "SoftMPEG4Encoder.h"
37
38#include <inttypes.h>
39
40#ifndef INT32_MAX
41#define INT32_MAX   2147483647
42#endif
43
44namespace android {
45
46template<class T>
47static void InitOMXParams(T *params) {
48    params->nSize = sizeof(T);
49    params->nVersion.s.nVersionMajor = 1;
50    params->nVersion.s.nVersionMinor = 0;
51    params->nVersion.s.nRevision = 0;
52    params->nVersion.s.nStep = 0;
53}
54
55static const CodecProfileLevel kMPEG4ProfileLevels[] = {
56    { OMX_VIDEO_MPEG4ProfileCore, OMX_VIDEO_MPEG4Level2 },
57};
58
59static const CodecProfileLevel kH263ProfileLevels[] = {
60    { OMX_VIDEO_H263ProfileBaseline, OMX_VIDEO_H263Level45 },
61};
62
63SoftMPEG4Encoder::SoftMPEG4Encoder(
64            const char *name,
65            const char *componentRole,
66            OMX_VIDEO_CODINGTYPE codingType,
67            const char *mime,
68            const CodecProfileLevel *profileLevels,
69            size_t numProfileLevels,
70            const OMX_CALLBACKTYPE *callbacks,
71            OMX_PTR appData,
72            OMX_COMPONENTTYPE **component)
73    : SoftVideoEncoderOMXComponent(
74            name, componentRole, codingType,
75            profileLevels, numProfileLevels,
76            176 /* width */, 144 /* height */,
77            callbacks, appData, component),
78      mEncodeMode(COMBINE_MODE_WITH_ERR_RES),
79      mIDRFrameRefreshIntervalInSec(1),
80      mNumInputFrames(-1),
81      mStarted(false),
82      mSawInputEOS(false),
83      mSignalledError(false),
84      mHandle(new tagvideoEncControls),
85      mEncParams(new tagvideoEncOptions),
86      mInputFrameData(NULL) {
87
88    if (codingType == OMX_VIDEO_CodingH263) {
89        mEncodeMode = H263_MODE;
90    }
91
92    // 256 * 1024 is a magic number for PV's encoder, not sure why
93    const size_t kOutputBufferSize = 256 * 1024;
94
95    initPorts(kNumBuffers, kNumBuffers, kOutputBufferSize, mime);
96
97    ALOGI("Construct SoftMPEG4Encoder");
98}
99
100SoftMPEG4Encoder::~SoftMPEG4Encoder() {
101    ALOGV("Destruct SoftMPEG4Encoder");
102    releaseEncoder();
103    List<BufferInfo *> &outQueue = getPortQueue(1);
104    List<BufferInfo *> &inQueue = getPortQueue(0);
105    CHECK(outQueue.empty());
106    CHECK(inQueue.empty());
107}
108
109OMX_ERRORTYPE SoftMPEG4Encoder::initEncParams() {
110    CHECK(mHandle != NULL);
111    memset(mHandle, 0, sizeof(tagvideoEncControls));
112
113    CHECK(mEncParams != NULL);
114    memset(mEncParams, 0, sizeof(tagvideoEncOptions));
115    if (!PVGetDefaultEncOption(mEncParams, 0)) {
116        ALOGE("Failed to get default encoding parameters");
117        return OMX_ErrorUndefined;
118    }
119    mEncParams->encMode = mEncodeMode;
120    mEncParams->encWidth[0] = mWidth;
121    mEncParams->encHeight[0] = mHeight;
122    mEncParams->encFrameRate[0] = mFramerate >> 16; // mFramerate is in Q16 format
123    mEncParams->rcType = VBR_1;
124    mEncParams->vbvDelay = 5.0f;
125
126    // FIXME:
127    // Add more profile and level support for MPEG4 encoder
128    mEncParams->profile_level = CORE_PROFILE_LEVEL2;
129    mEncParams->packetSize = 32;
130    mEncParams->rvlcEnable = PV_OFF;
131    mEncParams->numLayers = 1;
132    mEncParams->timeIncRes = 1000;
133    mEncParams->tickPerSrc = ((int64_t)mEncParams->timeIncRes << 16) / mFramerate;
134
135    mEncParams->bitRate[0] = mBitrate;
136    mEncParams->iQuant[0] = 15;
137    mEncParams->pQuant[0] = 12;
138    mEncParams->quantType[0] = 0;
139    mEncParams->noFrameSkipped = PV_OFF;
140
141    if (mColorFormat != OMX_COLOR_FormatYUV420Planar || mInputDataIsMeta) {
142        // Color conversion is needed.
143        free(mInputFrameData);
144        mInputFrameData = NULL;
145        if (((uint64_t)mWidth * mHeight) > ((uint64_t)INT32_MAX / 3)) {
146            ALOGE("b/25812794, Buffer size is too big.");
147            return OMX_ErrorBadParameter;
148        }
149        mInputFrameData =
150            (uint8_t *) malloc((mWidth * mHeight * 3 ) >> 1);
151        CHECK(mInputFrameData != NULL);
152    }
153
154    // PV's MPEG4 encoder requires the video dimension of multiple
155    if (mWidth % 16 != 0 || mHeight % 16 != 0) {
156        ALOGE("Video frame size %dx%d must be a multiple of 16",
157            mWidth, mHeight);
158        return OMX_ErrorBadParameter;
159    }
160
161    // Set IDR frame refresh interval
162    if (mIDRFrameRefreshIntervalInSec < 0) {
163        mEncParams->intraPeriod = -1;
164    } else if (mIDRFrameRefreshIntervalInSec == 0) {
165        mEncParams->intraPeriod = 1;  // All I frames
166    } else {
167        mEncParams->intraPeriod =
168            (mIDRFrameRefreshIntervalInSec * mFramerate) >> 16;
169    }
170
171    mEncParams->numIntraMB = 0;
172    mEncParams->sceneDetect = PV_ON;
173    mEncParams->searchRange = 16;
174    mEncParams->mv8x8Enable = PV_OFF;
175    mEncParams->gobHeaderInterval = 0;
176    mEncParams->useACPred = PV_ON;
177    mEncParams->intraDCVlcTh = 0;
178
179    return OMX_ErrorNone;
180}
181
182OMX_ERRORTYPE SoftMPEG4Encoder::initEncoder() {
183    CHECK(!mStarted);
184
185    OMX_ERRORTYPE errType = OMX_ErrorNone;
186    if (OMX_ErrorNone != (errType = initEncParams())) {
187        ALOGE("Failed to initialized encoder params");
188        mSignalledError = true;
189        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
190        return errType;
191    }
192
193    if (!PVInitVideoEncoder(mHandle, mEncParams)) {
194        ALOGE("Failed to initialize the encoder");
195        mSignalledError = true;
196        notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
197        return OMX_ErrorUndefined;
198    }
199
200    mNumInputFrames = -1;  // 1st buffer for codec specific data
201    mStarted = true;
202
203    return OMX_ErrorNone;
204}
205
206OMX_ERRORTYPE SoftMPEG4Encoder::releaseEncoder() {
207    if (!mStarted) {
208        return OMX_ErrorNone;
209    }
210
211    PVCleanUpVideoEncoder(mHandle);
212
213    free(mInputFrameData);
214    mInputFrameData = NULL;
215
216    delete mEncParams;
217    mEncParams = NULL;
218
219    delete mHandle;
220    mHandle = NULL;
221
222    mStarted = false;
223
224    return OMX_ErrorNone;
225}
226
227OMX_ERRORTYPE SoftMPEG4Encoder::internalGetParameter(
228        OMX_INDEXTYPE index, OMX_PTR params) {
229    switch (index) {
230        case OMX_IndexParamVideoBitrate:
231        {
232            OMX_VIDEO_PARAM_BITRATETYPE *bitRate =
233                (OMX_VIDEO_PARAM_BITRATETYPE *) params;
234
235            if (bitRate->nPortIndex != 1) {
236                return OMX_ErrorUndefined;
237            }
238
239            bitRate->eControlRate = OMX_Video_ControlRateVariable;
240            bitRate->nTargetBitrate = mBitrate;
241            return OMX_ErrorNone;
242        }
243
244        case OMX_IndexParamVideoH263:
245        {
246            OMX_VIDEO_PARAM_H263TYPE *h263type =
247                (OMX_VIDEO_PARAM_H263TYPE *)params;
248
249            if (h263type->nPortIndex != 1) {
250                return OMX_ErrorUndefined;
251            }
252
253            h263type->nAllowedPictureTypes =
254                (OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP);
255            h263type->eProfile = OMX_VIDEO_H263ProfileBaseline;
256            h263type->eLevel = OMX_VIDEO_H263Level45;
257            h263type->bPLUSPTYPEAllowed = OMX_FALSE;
258            h263type->bForceRoundingTypeToZero = OMX_FALSE;
259            h263type->nPictureHeaderRepetition = 0;
260            h263type->nGOBHeaderInterval = 0;
261
262            return OMX_ErrorNone;
263        }
264
265        case OMX_IndexParamVideoMpeg4:
266        {
267            OMX_VIDEO_PARAM_MPEG4TYPE *mpeg4type =
268                (OMX_VIDEO_PARAM_MPEG4TYPE *)params;
269
270            if (mpeg4type->nPortIndex != 1) {
271                return OMX_ErrorUndefined;
272            }
273
274            mpeg4type->eProfile = OMX_VIDEO_MPEG4ProfileCore;
275            mpeg4type->eLevel = OMX_VIDEO_MPEG4Level2;
276            mpeg4type->nAllowedPictureTypes =
277                (OMX_VIDEO_PictureTypeI | OMX_VIDEO_PictureTypeP);
278            mpeg4type->nBFrames = 0;
279            mpeg4type->nIDCVLCThreshold = 0;
280            mpeg4type->bACPred = OMX_TRUE;
281            mpeg4type->nMaxPacketSize = 256;
282            mpeg4type->nTimeIncRes = 1000;
283            mpeg4type->nHeaderExtension = 0;
284            mpeg4type->bReversibleVLC = OMX_FALSE;
285
286            return OMX_ErrorNone;
287        }
288
289        default:
290            return SoftVideoEncoderOMXComponent::internalGetParameter(index, params);
291    }
292}
293
294OMX_ERRORTYPE SoftMPEG4Encoder::internalSetParameter(
295        OMX_INDEXTYPE index, const OMX_PTR params) {
296    int32_t indexFull = index;
297
298    switch (indexFull) {
299        case OMX_IndexParamVideoBitrate:
300        {
301            OMX_VIDEO_PARAM_BITRATETYPE *bitRate =
302                (OMX_VIDEO_PARAM_BITRATETYPE *) params;
303
304            if (bitRate->nPortIndex != 1 ||
305                bitRate->eControlRate != OMX_Video_ControlRateVariable) {
306                return OMX_ErrorUndefined;
307            }
308
309            mBitrate = bitRate->nTargetBitrate;
310            return OMX_ErrorNone;
311        }
312
313        case OMX_IndexParamVideoH263:
314        {
315            OMX_VIDEO_PARAM_H263TYPE *h263type =
316                (OMX_VIDEO_PARAM_H263TYPE *)params;
317
318            if (h263type->nPortIndex != 1) {
319                return OMX_ErrorUndefined;
320            }
321
322            if (h263type->eProfile != OMX_VIDEO_H263ProfileBaseline ||
323                h263type->eLevel != OMX_VIDEO_H263Level45 ||
324                (h263type->nAllowedPictureTypes & OMX_VIDEO_PictureTypeB) ||
325                h263type->bPLUSPTYPEAllowed != OMX_FALSE ||
326                h263type->bForceRoundingTypeToZero != OMX_FALSE ||
327                h263type->nPictureHeaderRepetition != 0 ||
328                h263type->nGOBHeaderInterval != 0) {
329                return OMX_ErrorUndefined;
330            }
331
332            return OMX_ErrorNone;
333        }
334
335        case OMX_IndexParamVideoMpeg4:
336        {
337            OMX_VIDEO_PARAM_MPEG4TYPE *mpeg4type =
338                (OMX_VIDEO_PARAM_MPEG4TYPE *)params;
339
340            if (mpeg4type->nPortIndex != 1) {
341                return OMX_ErrorUndefined;
342            }
343
344            if (mpeg4type->eProfile != OMX_VIDEO_MPEG4ProfileCore ||
345                mpeg4type->eLevel != OMX_VIDEO_MPEG4Level2 ||
346                (mpeg4type->nAllowedPictureTypes & OMX_VIDEO_PictureTypeB) ||
347                mpeg4type->nBFrames != 0 ||
348                mpeg4type->nIDCVLCThreshold != 0 ||
349                mpeg4type->bACPred != OMX_TRUE ||
350                mpeg4type->nMaxPacketSize != 256 ||
351                mpeg4type->nTimeIncRes != 1000 ||
352                mpeg4type->nHeaderExtension != 0 ||
353                mpeg4type->bReversibleVLC != OMX_FALSE) {
354                return OMX_ErrorUndefined;
355            }
356
357            return OMX_ErrorNone;
358        }
359
360        default:
361            return SoftVideoEncoderOMXComponent::internalSetParameter(index, params);
362    }
363}
364
365void SoftMPEG4Encoder::onQueueFilled(OMX_U32 /* portIndex */) {
366    if (mSignalledError || mSawInputEOS) {
367        return;
368    }
369
370    if (!mStarted) {
371        if (OMX_ErrorNone != initEncoder()) {
372            return;
373        }
374    }
375
376    List<BufferInfo *> &inQueue = getPortQueue(0);
377    List<BufferInfo *> &outQueue = getPortQueue(1);
378
379    while (!mSawInputEOS && !inQueue.empty() && !outQueue.empty()) {
380        BufferInfo *inInfo = *inQueue.begin();
381        OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
382        BufferInfo *outInfo = *outQueue.begin();
383        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
384
385        outHeader->nTimeStamp = 0;
386        outHeader->nFlags = 0;
387        outHeader->nOffset = 0;
388        outHeader->nFilledLen = 0;
389        outHeader->nOffset = 0;
390
391        uint8_t *outPtr = (uint8_t *) outHeader->pBuffer;
392        int32_t dataLength = outHeader->nAllocLen;
393
394        if (mNumInputFrames < 0) {
395            if (!PVGetVolHeader(mHandle, outPtr, &dataLength, 0)) {
396                ALOGE("Failed to get VOL header");
397                mSignalledError = true;
398                notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
399                return;
400            }
401            ALOGV("Output VOL header: %d bytes", dataLength);
402            ++mNumInputFrames;
403            outHeader->nFlags |= OMX_BUFFERFLAG_CODECCONFIG;
404            outHeader->nFilledLen = dataLength;
405            outQueue.erase(outQueue.begin());
406            outInfo->mOwnedByUs = false;
407            notifyFillBufferDone(outHeader);
408            return;
409        }
410
411        // Save the input buffer info so that it can be
412        // passed to an output buffer
413        InputBufferInfo info;
414        info.mTimeUs = inHeader->nTimeStamp;
415        info.mFlags = inHeader->nFlags;
416        mInputBufferInfoVec.push(info);
417
418        if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
419            mSawInputEOS = true;
420        }
421
422        if (inHeader->nFilledLen > 0) {
423            const uint8_t *inputData = NULL;
424            if (mInputDataIsMeta) {
425                inputData =
426                    extractGraphicBuffer(
427                            mInputFrameData, (mWidth * mHeight * 3) >> 1,
428                            inHeader->pBuffer + inHeader->nOffset, inHeader->nFilledLen,
429                            mWidth, mHeight);
430                if (inputData == NULL) {
431                    ALOGE("Unable to extract gralloc buffer in metadata mode");
432                    mSignalledError = true;
433                    notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
434                        return;
435                }
436            } else {
437                inputData = (const uint8_t *)inHeader->pBuffer + inHeader->nOffset;
438                if (mColorFormat != OMX_COLOR_FormatYUV420Planar) {
439                    ConvertYUV420SemiPlanarToYUV420Planar(
440                        inputData, mInputFrameData, mWidth, mHeight);
441                    inputData = mInputFrameData;
442                }
443            }
444
445            CHECK(inputData != NULL);
446
447            VideoEncFrameIO vin, vout;
448            memset(&vin, 0, sizeof(vin));
449            memset(&vout, 0, sizeof(vout));
450            vin.height = align(mHeight, 16);
451            vin.pitch = align(mWidth, 16);
452            vin.timestamp = (inHeader->nTimeStamp + 500) / 1000;  // in ms
453            vin.yChan = (uint8_t *)inputData;
454            vin.uChan = vin.yChan + vin.height * vin.pitch;
455            vin.vChan = vin.uChan + ((vin.height * vin.pitch) >> 2);
456
457            ULong modTimeMs = 0;
458            int32_t nLayer = 0;
459            MP4HintTrack hintTrack;
460            if (!PVEncodeVideoFrame(mHandle, &vin, &vout,
461                    &modTimeMs, outPtr, &dataLength, &nLayer) ||
462                !PVGetHintTrack(mHandle, &hintTrack)) {
463                ALOGE("Failed to encode frame or get hink track at frame %" PRId64,
464                    mNumInputFrames);
465                mSignalledError = true;
466                notify(OMX_EventError, OMX_ErrorUndefined, 0, 0);
467            }
468            CHECK(NULL == PVGetOverrunBuffer(mHandle));
469            if (hintTrack.CodeType == 0) {  // I-frame serves as sync frame
470                outHeader->nFlags |= OMX_BUFFERFLAG_SYNCFRAME;
471            }
472
473            ++mNumInputFrames;
474        } else {
475            dataLength = 0;
476        }
477
478        inQueue.erase(inQueue.begin());
479        inInfo->mOwnedByUs = false;
480        notifyEmptyBufferDone(inHeader);
481
482        outQueue.erase(outQueue.begin());
483        CHECK(!mInputBufferInfoVec.empty());
484        InputBufferInfo *inputBufInfo = mInputBufferInfoVec.begin();
485        outHeader->nTimeStamp = inputBufInfo->mTimeUs;
486        outHeader->nFlags |= (inputBufInfo->mFlags | OMX_BUFFERFLAG_ENDOFFRAME);
487        outHeader->nFilledLen = dataLength;
488        mInputBufferInfoVec.erase(mInputBufferInfoVec.begin());
489        outInfo->mOwnedByUs = false;
490        notifyFillBufferDone(outHeader);
491    }
492}
493
494}  // namespace android
495
496android::SoftOMXComponent *createSoftOMXComponent(
497        const char *name, const OMX_CALLBACKTYPE *callbacks,
498        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
499    using namespace android;
500    if (!strcmp(name, "OMX.google.h263.encoder")) {
501        return new android::SoftMPEG4Encoder(
502                name, "video_encoder.h263", OMX_VIDEO_CodingH263, MEDIA_MIMETYPE_VIDEO_H263,
503                kH263ProfileLevels, NELEM(kH263ProfileLevels),
504                callbacks, appData, component);
505    } else if (!strcmp(name, "OMX.google.mpeg4.encoder")) {
506        return new android::SoftMPEG4Encoder(
507                name, "video_encoder.mpeg4", OMX_VIDEO_CodingMPEG4, MEDIA_MIMETYPE_VIDEO_MPEG4,
508                kMPEG4ProfileLevels, NELEM(kMPEG4ProfileLevels),
509                callbacks, appData, component);
510    } else {
511        CHECK(!"Unknown component");
512    }
513    return NULL;
514}
515