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/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "SoftAMRWBEncoder"
#include <utils/Log.h>
#include "SoftAMRWBEncoder.h"
#include "cmnMemory.h"
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/hexdump.h>
namespace android {
static const int32_t kSampleRate = 16000;
template<class T>
static void InitOMXParams(T *params) {
params->nSize = sizeof(T);
params->nVersion.s.nVersionMajor = 1;
params->nVersion.s.nVersionMinor = 0;
params->nVersion.s.nRevision = 0;
params->nVersion.s.nStep = 0;
}
SoftAMRWBEncoder::SoftAMRWBEncoder(
const char *name,
const OMX_CALLBACKTYPE *callbacks,
OMX_PTR appData,
OMX_COMPONENTTYPE **component)
: SimpleSoftOMXComponent(name, callbacks, appData, component),
mEncoderHandle(NULL),
mApiHandle(NULL),
mMemOperator(NULL),
mBitRate(0),
mMode(VOAMRWB_MD66),
mInputSize(0),
mInputTimeUs(-1ll),
mSawInputEOS(false),
mSignalledError(false) {
initPorts();
CHECK_EQ(initEncoder(), (status_t)OK);
}
SoftAMRWBEncoder::~SoftAMRWBEncoder() {
if (mEncoderHandle != NULL) {
CHECK_EQ(VO_ERR_NONE, mApiHandle->Uninit(mEncoderHandle));
mEncoderHandle = NULL;
}
delete mApiHandle;
mApiHandle = NULL;
delete mMemOperator;
mMemOperator = NULL;
}
void SoftAMRWBEncoder::initPorts() {
OMX_PARAM_PORTDEFINITIONTYPE def;
InitOMXParams(&def);
def.nPortIndex = 0;
def.eDir = OMX_DirInput;
def.nBufferCountMin = kNumBuffers;
def.nBufferCountActual = def.nBufferCountMin;
def.nBufferSize = kNumSamplesPerFrame * sizeof(int16_t);
def.bEnabled = OMX_TRUE;
def.bPopulated = OMX_FALSE;
def.eDomain = OMX_PortDomainAudio;
def.bBuffersContiguous = OMX_FALSE;
def.nBufferAlignment = 1;
def.format.audio.cMIMEType = const_cast<char *>("audio/raw");
def.format.audio.pNativeRender = NULL;
def.format.audio.bFlagErrorConcealment = OMX_FALSE;
def.format.audio.eEncoding = OMX_AUDIO_CodingPCM;
addPort(def);
def.nPortIndex = 1;
def.eDir = OMX_DirOutput;
def.nBufferCountMin = kNumBuffers;
def.nBufferCountActual = def.nBufferCountMin;
def.nBufferSize = 8192;
def.bEnabled = OMX_TRUE;
def.bPopulated = OMX_FALSE;
def.eDomain = OMX_PortDomainAudio;
def.bBuffersContiguous = OMX_FALSE;
def.nBufferAlignment = 2;
def.format.audio.cMIMEType = const_cast<char *>("audio/amr-wb");
def.format.audio.pNativeRender = NULL;
def.format.audio.bFlagErrorConcealment = OMX_FALSE;
def.format.audio.eEncoding = OMX_AUDIO_CodingAMR;
addPort(def);
}
status_t SoftAMRWBEncoder::initEncoder() {
mApiHandle = new VO_AUDIO_CODECAPI;
if (VO_ERR_NONE != voGetAMRWBEncAPI(mApiHandle)) {
ALOGE("Failed to get api handle");
return UNKNOWN_ERROR;
}
mMemOperator = new VO_MEM_OPERATOR;
mMemOperator->Alloc = cmnMemAlloc;
mMemOperator->Copy = cmnMemCopy;
mMemOperator->Free = cmnMemFree;
mMemOperator->Set = cmnMemSet;
mMemOperator->Check = cmnMemCheck;
VO_CODEC_INIT_USERDATA userData;
memset(&userData, 0, sizeof(userData));
userData.memflag = VO_IMF_USERMEMOPERATOR;
userData.memData = (VO_PTR) mMemOperator;
if (VO_ERR_NONE != mApiHandle->Init(
&mEncoderHandle, VO_AUDIO_CodingAMRWB, &userData)) {
ALOGE("Failed to init AMRWB encoder");
return UNKNOWN_ERROR;
}
VOAMRWBFRAMETYPE type = VOAMRWB_RFC3267;
if (VO_ERR_NONE != mApiHandle->SetParam(
mEncoderHandle, VO_PID_AMRWB_FRAMETYPE, &type)) {
ALOGE("Failed to set AMRWB encoder frame type to %d", type);
return UNKNOWN_ERROR;
}
return OK;
}
OMX_ERRORTYPE SoftAMRWBEncoder::internalGetParameter(
OMX_INDEXTYPE index, OMX_PTR params) {
switch (index) {
case OMX_IndexParamAudioPortFormat:
{
OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
(OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
if (formatParams->nPortIndex > 1) {
return OMX_ErrorUndefined;
}
if (formatParams->nIndex > 0) {
return OMX_ErrorNoMore;
}
formatParams->eEncoding =
(formatParams->nPortIndex == 0)
? OMX_AUDIO_CodingPCM : OMX_AUDIO_CodingAMR;
return OMX_ErrorNone;
}
case OMX_IndexParamAudioAmr:
{
OMX_AUDIO_PARAM_AMRTYPE *amrParams =
(OMX_AUDIO_PARAM_AMRTYPE *)params;
if (amrParams->nPortIndex != 1) {
return OMX_ErrorUndefined;
}
amrParams->nChannels = 1;
amrParams->nBitRate = mBitRate;
amrParams->eAMRBandMode =
(OMX_AUDIO_AMRBANDMODETYPE)(mMode + OMX_AUDIO_AMRBandModeWB0);
amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
return OMX_ErrorNone;
}
case OMX_IndexParamAudioPcm:
{
OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
(OMX_AUDIO_PARAM_PCMMODETYPE *)params;
if (pcmParams->nPortIndex != 0) {
return OMX_ErrorUndefined;
}
pcmParams->eNumData = OMX_NumericalDataSigned;
pcmParams->eEndian = OMX_EndianBig;
pcmParams->bInterleaved = OMX_TRUE;
pcmParams->nBitPerSample = 16;
pcmParams->ePCMMode = OMX_AUDIO_PCMModeLinear;
pcmParams->eChannelMapping[0] = OMX_AUDIO_ChannelCF;
pcmParams->nChannels = 1;
pcmParams->nSamplingRate = kSampleRate;
return OMX_ErrorNone;
}
default:
return SimpleSoftOMXComponent::internalGetParameter(index, params);
}
}
OMX_ERRORTYPE SoftAMRWBEncoder::internalSetParameter(
OMX_INDEXTYPE index, const OMX_PTR params) {
switch (index) {
case OMX_IndexParamStandardComponentRole:
{
const OMX_PARAM_COMPONENTROLETYPE *roleParams =
(const OMX_PARAM_COMPONENTROLETYPE *)params;
if (strncmp((const char *)roleParams->cRole,
"audio_encoder.amrwb",
OMX_MAX_STRINGNAME_SIZE - 1)) {
return OMX_ErrorUndefined;
}
return OMX_ErrorNone;
}
case OMX_IndexParamAudioPortFormat:
{
const OMX_AUDIO_PARAM_PORTFORMATTYPE *formatParams =
(const OMX_AUDIO_PARAM_PORTFORMATTYPE *)params;
if (formatParams->nPortIndex > 1) {
return OMX_ErrorUndefined;
}
if (formatParams->nIndex > 0) {
return OMX_ErrorNoMore;
}
if ((formatParams->nPortIndex == 0
&& formatParams->eEncoding != OMX_AUDIO_CodingPCM)
|| (formatParams->nPortIndex == 1
&& formatParams->eEncoding != OMX_AUDIO_CodingAMR)) {
return OMX_ErrorUndefined;
}
return OMX_ErrorNone;
}
case OMX_IndexParamAudioAmr:
{
OMX_AUDIO_PARAM_AMRTYPE *amrParams =
(OMX_AUDIO_PARAM_AMRTYPE *)params;
if (amrParams->nPortIndex != 1) {
return OMX_ErrorUndefined;
}
if (amrParams->nChannels != 1
|| amrParams->eAMRDTXMode != OMX_AUDIO_AMRDTXModeOff
|| amrParams->eAMRFrameFormat
!= OMX_AUDIO_AMRFrameFormatFSF
|| amrParams->eAMRBandMode < OMX_AUDIO_AMRBandModeWB0
|| amrParams->eAMRBandMode > OMX_AUDIO_AMRBandModeWB8) {
return OMX_ErrorUndefined;
}
mBitRate = amrParams->nBitRate;
mMode = (VOAMRWBMODE)(
amrParams->eAMRBandMode - OMX_AUDIO_AMRBandModeWB0);
amrParams->eAMRDTXMode = OMX_AUDIO_AMRDTXModeOff;
amrParams->eAMRFrameFormat = OMX_AUDIO_AMRFrameFormatFSF;
if (VO_ERR_NONE !=
mApiHandle->SetParam(
mEncoderHandle, VO_PID_AMRWB_MODE, &mMode)) {
ALOGE("Failed to set AMRWB encoder mode to %d", mMode);
return OMX_ErrorUndefined;
}
return OMX_ErrorNone;
}
case OMX_IndexParamAudioPcm:
{
OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams =
(OMX_AUDIO_PARAM_PCMMODETYPE *)params;
if (pcmParams->nPortIndex != 0) {
return OMX_ErrorUndefined;
}
if (pcmParams->nChannels != 1
|| pcmParams->nSamplingRate != (OMX_U32)kSampleRate) {
return OMX_ErrorUndefined;
}
return OMX_ErrorNone;
}
default:
return SimpleSoftOMXComponent::internalSetParameter(index, params);
}
}
void SoftAMRWBEncoder::onQueueFilled(OMX_U32 /* portIndex */) {
if (mSignalledError) {
return;
}
List<BufferInfo *> &inQueue = getPortQueue(0);
List<BufferInfo *> &outQueue = getPortQueue(1);
size_t numBytesPerInputFrame = kNumSamplesPerFrame * sizeof(int16_t);
for (;;) {
// We do the following until we run out of buffers.
while (mInputSize < numBytesPerInputFrame) {
// As long as there's still input data to be read we
// will drain "kNumSamplesPerFrame" samples
// into the "mInputFrame" buffer and then encode those
// as a unit into an output buffer.
if (mSawInputEOS || inQueue.empty()) {
return;
}
BufferInfo *inInfo = *inQueue.begin();
OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader;
const void *inData = inHeader->pBuffer + inHeader->nOffset;
size_t copy = numBytesPerInputFrame - mInputSize;
if (copy > inHeader->nFilledLen) {
copy = inHeader->nFilledLen;
}
if (mInputSize == 0) {
mInputTimeUs = inHeader->nTimeStamp;
}
memcpy((uint8_t *)mInputFrame + mInputSize, inData, copy);
mInputSize += copy;
inHeader->nOffset += copy;
inHeader->nFilledLen -= copy;
// "Time" on the input buffer has in effect advanced by the
// number of audio frames we just advanced nOffset by.
inHeader->nTimeStamp +=
(copy * 1000000ll / kSampleRate) / sizeof(int16_t);
if (inHeader->nFilledLen == 0) {
if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) {
ALOGV("saw input EOS");
mSawInputEOS = true;
// Pad any remaining data with zeroes.
memset((uint8_t *)mInputFrame + mInputSize,
0,
numBytesPerInputFrame - mInputSize);
mInputSize = numBytesPerInputFrame;
}
inQueue.erase(inQueue.begin());
inInfo->mOwnedByUs = false;
notifyEmptyBufferDone(inHeader);
inData = NULL;
inHeader = NULL;
inInfo = NULL;
}
}
// At this point we have all the input data necessary to encode
// a single frame, all we need is an output buffer to store the result
// in.
if (outQueue.empty()) {
return;
}
BufferInfo *outInfo = *outQueue.begin();
OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader;
uint8_t *outPtr = outHeader->pBuffer + outHeader->nOffset;
size_t outAvailable = outHeader->nAllocLen - outHeader->nOffset;
VO_CODECBUFFER inputData;
memset(&inputData, 0, sizeof(inputData));
inputData.Buffer = (unsigned char *) mInputFrame;
inputData.Length = mInputSize;
CHECK_EQ(VO_ERR_NONE,
mApiHandle->SetInputData(mEncoderHandle, &inputData));
VO_CODECBUFFER outputData;
memset(&outputData, 0, sizeof(outputData));
VO_AUDIO_OUTPUTINFO outputInfo;
memset(&outputInfo, 0, sizeof(outputInfo));
outputData.Buffer = outPtr;
outputData.Length = outAvailable;
VO_U32 ret = mApiHandle->GetOutputData(
mEncoderHandle, &outputData, &outputInfo);
CHECK(ret == VO_ERR_NONE || ret == VO_ERR_INPUT_BUFFER_SMALL);
outHeader->nFilledLen = outputData.Length;
outHeader->nFlags = OMX_BUFFERFLAG_ENDOFFRAME;
if (mSawInputEOS) {
// We also tag this output buffer with EOS if it corresponds
// to the final input buffer.
outHeader->nFlags = OMX_BUFFERFLAG_EOS;
}
outHeader->nTimeStamp = mInputTimeUs;
#if 0
ALOGI("sending %ld bytes of data (time = %lld us, flags = 0x%08lx)",
outHeader->nFilledLen, mInputTimeUs, outHeader->nFlags);
hexdump(outHeader->pBuffer + outHeader->nOffset, outHeader->nFilledLen);
#endif
outQueue.erase(outQueue.begin());
outInfo->mOwnedByUs = false;
notifyFillBufferDone(outHeader);
outHeader = NULL;
outInfo = NULL;
mInputSize = 0;
}
}
} // namespace android
android::SoftOMXComponent *createSoftOMXComponent(
const char *name, const OMX_CALLBACKTYPE *callbacks,
OMX_PTR appData, OMX_COMPONENTTYPE **component) {
return new android::SoftAMRWBEncoder(name, callbacks, appData, component);
}