SoftAMRWBEncoder.cpp revision 84333e0475bc911adc16417f4ca327c975cf6c36
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 "SoftAMRWBEncoder"
19#include <utils/Log.h>
20
21#include "SoftAMRWBEncoder.h"
22
23#include "cmnMemory.h"
24
25#include <media/stagefright/foundation/ADebug.h>
26#include <media/stagefright/foundation/hexdump.h>
27
28namespace android {
29
30static const int32_t kSampleRate = 16000;
31
32template<class T>
33static void InitOMXParams(T *params) {
34    params->nSize = sizeof(T);
35    params->nVersion.s.nVersionMajor = 1;
36    params->nVersion.s.nVersionMinor = 0;
37    params->nVersion.s.nRevision = 0;
38    params->nVersion.s.nStep = 0;
39}
40
41SoftAMRWBEncoder::SoftAMRWBEncoder(
42        const char *name,
43        const OMX_CALLBACKTYPE *callbacks,
44        OMX_PTR appData,
45        OMX_COMPONENTTYPE **component)
46    : SimpleSoftOMXComponent(name, callbacks, appData, component),
47      mEncoderHandle(NULL),
48      mApiHandle(NULL),
49      mMemOperator(NULL),
50      mBitRate(0),
51      mMode(VOAMRWB_MD66),
52      mInputSize(0),
53      mInputTimeUs(-1ll),
54      mSawInputEOS(false),
55      mSignalledError(false) {
56    initPorts();
57    CHECK_EQ(initEncoder(), (status_t)OK);
58}
59
60SoftAMRWBEncoder::~SoftAMRWBEncoder() {
61    if (mEncoderHandle != NULL) {
62        CHECK_EQ(VO_ERR_NONE, mApiHandle->Uninit(mEncoderHandle));
63        mEncoderHandle = NULL;
64    }
65
66    delete mApiHandle;
67    mApiHandle = NULL;
68
69    delete mMemOperator;
70    mMemOperator = NULL;
71}
72
73void SoftAMRWBEncoder::initPorts() {
74    OMX_PARAM_PORTDEFINITIONTYPE def;
75    InitOMXParams(&def);
76
77    def.nPortIndex = 0;
78    def.eDir = OMX_DirInput;
79    def.nBufferCountMin = kNumBuffers;
80    def.nBufferCountActual = def.nBufferCountMin;
81    def.nBufferSize = kNumSamplesPerFrame * sizeof(int16_t);
82    def.bEnabled = OMX_TRUE;
83    def.bPopulated = OMX_FALSE;
84    def.eDomain = OMX_PortDomainAudio;
85    def.bBuffersContiguous = OMX_FALSE;
86    def.nBufferAlignment = 1;
87
88    def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
89    def.format.audio.pNativeRender = NULL;
90    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
91    def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
92
93    addPort(def);
94
95    def.nPortIndex = 1;
96    def.eDir = OMX_DirOutput;
97    def.nBufferCountMin = kNumBuffers;
98    def.nBufferCountActual = def.nBufferCountMin;
99    def.nBufferSize = 8192;
100    def.bEnabled = OMX_TRUE;
101    def.bPopulated = OMX_FALSE;
102    def.eDomain = OMX_PortDomainAudio;
103    def.bBuffersContiguous = OMX_FALSE;
104    def.nBufferAlignment = 2;
105
106    def.format.audio.cMIMEType = const_cast<char *>("audio/amr-wb");
107    def.format.audio.pNativeRender = NULL;
108    def.format.audio.bFlagErrorConcealment = OMX_FALSE;
109    def.format.audio.eEncoding = OMX_AUDIO_CodingAMR;
110
111    addPort(def);
112}
113
114status_t SoftAMRWBEncoder::initEncoder() {
115    mApiHandle = new VO_AUDIO_CODECAPI;
116
117    if (VO_ERR_NONE != voGetAMRWBEncAPI(mApiHandle)) {
118        ALOGE("Failed to get api handle");
119        return UNKNOWN_ERROR;
120    }
121
122    mMemOperator = new VO_MEM_OPERATOR;
123    mMemOperator->Alloc = cmnMemAlloc;
124    mMemOperator->Copy = cmnMemCopy;
125    mMemOperator->Free = cmnMemFree;
126    mMemOperator->Set = cmnMemSet;
127    mMemOperator->Check = cmnMemCheck;
128
129    VO_CODEC_INIT_USERDATA userData;
130    memset(&userData, 0, sizeof(userData));
131    userData.memflag = VO_IMF_USERMEMOPERATOR;
132    userData.memData = (VO_PTR) mMemOperator;
133
134    if (VO_ERR_NONE != mApiHandle->Init(
135                &mEncoderHandle, VO_AUDIO_CodingAMRWB, &userData)) {
136        ALOGE("Failed to init AMRWB encoder");
137        return UNKNOWN_ERROR;
138    }
139
140    VOAMRWBFRAMETYPE type = VOAMRWB_RFC3267;
141    if (VO_ERR_NONE != mApiHandle->SetParam(
142                mEncoderHandle, VO_PID_AMRWB_FRAMETYPE, &type)) {
143        ALOGE("Failed to set AMRWB encoder frame type to %d", type);
144        return UNKNOWN_ERROR;
145    }
146
147    return OK;
148}
149
150OMX_ERRORTYPE SoftAMRWBEncoder::internalGetParameter(
151        OMX_INDEXTYPE index, OMX_PTR params) {
152    switch (index) {
153        case OMX_IndexParamAudioPortFormat:
154        {
155            OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
156                (OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
157
158            if (formatParams->nPortIndex > 1) {
159                return OMX_ErrorUndefined;
160            }
161
162            if (formatParams->nIndex > 0) {
163                return OMX_ErrorNoMore;
164            }
165
166            formatParams->eEncoding =
167                (formatParams->nPortIndex == 0)
168                    ? OMX_AUDIO_CodingPCM : OMX_AUDIO_CodingAMR;
169
170            return OMX_ErrorNone;
171        }
172
173        case OMX_IndexParamAudioAmr:
174        {
175            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
176                (OMX_AUDIO_PARAM_AMRTYPE *)params;
177
178            if (amrParams->nPortIndex != 1) {
179                return OMX_ErrorUndefined;
180            }
181
182            amrParams->nChannels = 1;
183            amrParams->nBitRate = mBitRate;
184
185            amrParams->eAMRBandMode =
186                (OMX_AUDIO_AMRBANDMODETYPE)(mMode + OMX_AUDIO_AMRBandModeWB0);
187
188            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
189            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
190
191            return OMX_ErrorNone;
192        }
193
194        case OMX_IndexParamAudioPcm:
195        {
196            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
197                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
198
199            if (pcmParams->nPortIndex != 0) {
200                return OMX_ErrorUndefined;
201            }
202
203            pcmParams->eNumData = OMX_NumericalDataSigned;
204            pcmParams->eEndian = OMX_EndianBig;
205            pcmParams->bInterleaved = OMX_TRUE;
206            pcmParams->nBitPerSample = 16;
207            pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
208            pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelCF;
209
210            pcmParams->nChannels = 1;
211            pcmParams->nSamplingRate = kSampleRate;
212
213            return OMX_ErrorNone;
214        }
215
216        default:
217            return SimpleSoftOMXComponent::internalGetParameter(index, params);
218    }
219}
220
221OMX_ERRORTYPE SoftAMRWBEncoder::internalSetParameter(
222        OMX_INDEXTYPE index, const OMX_PTR params) {
223    switch (index) {
224        case OMX_IndexParamStandardComponentRole:
225        {
226            const OMX_PARAM_COMPONENTROLETYPE *roleParams =
227                (const OMX_PARAM_COMPONENTROLETYPE *)params;
228
229            if (strncmp((const char *)roleParams->cRole,
230                        "audio_encoder.amrwb",
231                        OMX_MAX_STRINGNAME_SIZE - 1)) {
232                return OMX_ErrorUndefined;
233            }
234
235            return OMX_ErrorNone;
236        }
237
238        case OMX_IndexParamAudioPortFormat:
239        {
240            const OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
241                (const OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
242
243            if (formatParams->nPortIndex > 1) {
244                return OMX_ErrorUndefined;
245            }
246
247            if (formatParams->nIndex > 0) {
248                return OMX_ErrorNoMore;
249            }
250
251            if ((formatParams->nPortIndex == 0
252                        && formatParams->eEncoding != OMX_AUDIO_CodingPCM)
253                || (formatParams->nPortIndex == 1
254                        && formatParams->eEncoding != OMX_AUDIO_CodingAMR)) {
255                return OMX_ErrorUndefined;
256            }
257
258            return OMX_ErrorNone;
259        }
260
261        case OMX_IndexParamAudioAmr:
262        {
263            OMX_AUDIO_PARAM_AMRTYPE *amrParams =
264                (OMX_AUDIO_PARAM_AMRTYPE *)params;
265
266            if (amrParams->nPortIndex != 1) {
267                return OMX_ErrorUndefined;
268            }
269
270            if (amrParams->nChannels != 1
271                    || amrParams->eAMRDTXMode != OMX_AUDIO_AMRDTXModeOff
272                    || amrParams->eAMRFrameFormat
273                            != OMX_AUDIO_AMRFrameFormatFSF
274                    || amrParams->eAMRBandMode < OMX_AUDIO_AMRBandModeWB0
275                    || amrParams->eAMRBandMode > OMX_AUDIO_AMRBandModeWB8) {
276                return OMX_ErrorUndefined;
277            }
278
279            mBitRate = amrParams->nBitRate;
280
281            mMode = (VOAMRWBMODE)(
282                    amrParams->eAMRBandMode - OMX_AUDIO_AMRBandModeWB0);
283
284            amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
285            amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
286
287            if (VO_ERR_NONE !=
288                    mApiHandle->SetParam(
289                        mEncoderHandle, VO_PID_AMRWB_MODE,  &mMode)) {
290                ALOGE("Failed to set AMRWB encoder mode to %d", mMode);
291                return OMX_ErrorUndefined;
292            }
293
294            return OMX_ErrorNone;
295        }
296
297        case OMX_IndexParamAudioPcm:
298        {
299            OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
300                (OMX_AUDIO_PARAM_PCMMODETYPE *)params;
301
302            if (pcmParams->nPortIndex != 0) {
303                return OMX_ErrorUndefined;
304            }
305
306            if (pcmParams->nChannels != 1
307                    || pcmParams->nSamplingRate != (OMX_U32)kSampleRate) {
308                return OMX_ErrorUndefined;
309            }
310
311            return OMX_ErrorNone;
312        }
313
314
315        default:
316            return SimpleSoftOMXComponent::internalSetParameter(index, params);
317    }
318}
319
320void SoftAMRWBEncoder::onQueueFilled(OMX_U32 /* portIndex */) {
321    if (mSignalledError) {
322        return;
323    }
324
325    List<BufferInfo *> &inQueue = getPortQueue(0);
326    List<BufferInfo *> &outQueue = getPortQueue(1);
327
328    size_t numBytesPerInputFrame = kNumSamplesPerFrame * sizeof(int16_t);
329
330    for (;;) {
331        // We do the following until we run out of buffers.
332
333        while (mInputSize < numBytesPerInputFrame) {
334            // As long as there's still input data to be read we
335            // will drain "kNumSamplesPerFrame" samples
336            // into the "mInputFrame" buffer and then encode those
337            // as a unit into an output buffer.
338
339            if (mSawInputEOS || inQueue.empty()) {
340                return;
341            }
342
343            BufferInfo *inInfo = *inQueue.begin();
344            OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
345
346            const void *inData = inHeader->pBuffer + inHeader->nOffset;
347
348            size_t copy = numBytesPerInputFrame - mInputSize;
349            if (copy > inHeader->nFilledLen) {
350                copy = inHeader->nFilledLen;
351            }
352
353            if (mInputSize == 0) {
354                mInputTimeUs = inHeader->nTimeStamp;
355            }
356
357            memcpy((uint8_t *)mInputFrame + mInputSize, inData, copy);
358            mInputSize += copy;
359
360            inHeader->nOffset += copy;
361            inHeader->nFilledLen -= copy;
362
363            // "Time" on the input buffer has in effect advanced by the
364            // number of audio frames we just advanced nOffset by.
365            inHeader->nTimeStamp +=
366                (copy * 1000000ll / kSampleRate) / sizeof(int16_t);
367
368            if (inHeader->nFilledLen == 0) {
369                if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
370                    ALOGV("saw input EOS");
371                    mSawInputEOS = true;
372
373                    // Pad any remaining data with zeroes.
374                    memset((uint8_t *)mInputFrame + mInputSize,
375                           0,
376                           numBytesPerInputFrame - mInputSize);
377
378                    mInputSize = numBytesPerInputFrame;
379                }
380
381                inQueue.erase(inQueue.begin());
382                inInfo->mOwnedByUs = false;
383                notifyEmptyBufferDone(inHeader);
384
385                inData = NULL;
386                inHeader = NULL;
387                inInfo = NULL;
388            }
389        }
390
391        // At this  point we have all the input data necessary to encode
392        // a single frame, all we need is an output buffer to store the result
393        // in.
394
395        if (outQueue.empty()) {
396            return;
397        }
398
399        BufferInfo *outInfo = *outQueue.begin();
400        OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
401
402        uint8_t *outPtr = outHeader->pBuffer + outHeader->nOffset;
403        size_t outAvailable = outHeader->nAllocLen - outHeader->nOffset;
404
405        VO_CODECBUFFER inputData;
406        memset(&inputData, 0, sizeof(inputData));
407        inputData.Buffer = (unsigned char *) mInputFrame;
408        inputData.Length = mInputSize;
409
410        CHECK_EQ(VO_ERR_NONE,
411                 mApiHandle->SetInputData(mEncoderHandle, &inputData));
412
413        VO_CODECBUFFER outputData;
414        memset(&outputData, 0, sizeof(outputData));
415        VO_AUDIO_OUTPUTINFO outputInfo;
416        memset(&outputInfo, 0, sizeof(outputInfo));
417
418        outputData.Buffer = outPtr;
419        outputData.Length = outAvailable;
420        VO_U32 ret = mApiHandle->GetOutputData(
421                mEncoderHandle, &outputData, &outputInfo);
422        CHECK(ret == VO_ERR_NONE || ret == VO_ERR_INPUT_BUFFER_SMALL);
423
424        outHeader->nFilledLen = outputData.Length;
425        outHeader->nFlags = OMX_BUFFERFLAG_ENDOFFRAME;
426
427        if (mSawInputEOS) {
428            // We also tag this output buffer with EOS if it corresponds
429            // to the final input buffer.
430            outHeader->nFlags = OMX_BUFFERFLAG_EOS;
431        }
432
433        outHeader->nTimeStamp = mInputTimeUs;
434
435#if 0
436        ALOGI("sending %ld bytes of data (time = %lld us, flags = 0x%08lx)",
437              outHeader->nFilledLen, mInputTimeUs, outHeader->nFlags);
438
439        hexdump(outHeader->pBuffer + outHeader->nOffset, outHeader->nFilledLen);
440#endif
441
442        outQueue.erase(outQueue.begin());
443        outInfo->mOwnedByUs = false;
444        notifyFillBufferDone(outHeader);
445
446        outHeader = NULL;
447        outInfo = NULL;
448
449        mInputSize = 0;
450    }
451}
452
453}  // namespace android
454
455android::SoftOMXComponent *createSoftOMXComponent(
456        const char *name, const OMX_CALLBACKTYPE *callbacks,
457        OMX_PTR appData, OMX_COMPONENTTYPE **component) {
458    return new android::SoftAMRWBEncoder(name, callbacks, appData, component);
459}
460