aac.rar_Acc_aac

//#include "log.h" #include "AacPlayerEngine.h" //#include "BrokenCallObject.h" //#include "AudioController.h" CAacPlayerEngine::CAacPlayerEngine(MAudioPlayerEngineObserver& aObserver) : iObserver(aObserver) { iPlayState = ENUM_PLAY_STOP; } CAacPlayerEngine::~CAacPlayerEngine() { if (iPlayerStream) { iPlayerStream->Stop(); } ClearData(); delete iCodec; delete iPlayerStream; } void CAacPlayerEngine::ClearData() { iAacData.ResetAndDestroy(); iWavData.ResetAndDestroy(); delete iAacRemainData; iAacRemainData = NULL; delete iCurrWavData; iCurrWavData = NULL; iPlayedBytes = 0; iTotalBytes = 0; } CAacPlayerEngine* CAacPlayerEngine::NewL(MAudioPlayerEngineObserver& aObserver) { CAacPlayerEngine* self = NewLC(aObserver); CleanupStack::Pop(self); return self; } CAacPlayerEngine* CAacPlayerEngine::NewLC(MAudioPlayerEngineObserver& aObserver) { CAacPlayerEngine* self = new (ELeave) CAacPlayerEngine(aObserver); CleanupStack::PushL(self); self->ConstructL(); return self; } void CAacPlayerEngine::ConstructL() { //LOG(_L("enter CAacPlayerEngine::ConstructL")); RArray<TInt> configParams; configParams.Append(0);//16000); configParams.Append(0);//1); configParams.Append(0);//1); configParams.Append(0);//1024); configParams.Append(0); configParams.Append(0); configParams.Append(0); configParams.Append(0); configParams.Append(16); configParams.Append(0); iCodec = CMMFCodec::NewL(TUid::Uid(0x101faf81)); iCodec->ConfigureL(TUid::Uid(KUidMmfCodecAudioSettings), (TDesC8&) configParams); configParams.Close(); iPlayerStream = CMdaAudioOutputStream::NewL(*this); iPlayerStream->Open(&iStreamSettings); //LOG(_L("leave CAacPlayerEngine::ConstructL")); } void CAacPlayerEngine::PlayL() { ClearData(); iPlayState = ENUM_PLAY_PLAY; } void CAacPlayerEngine::Stop() { //首先停止 iPlayerStream->Stop(); //清除资源 ClearData(); //记标记位 iPlayState = ENUM_PLAY_STOP; //重至 iWaitingData = ETrue; } void CAacPlayerEngine::PauseL() { //记标记位 iPlayState = ENUM_PLAY_PAUSE; } void CAacPlayerEngine::ResumeL() { //继续Copy数据 WriteStreamData(); //记标记位 iPlayState = ENUM_PLAY_PLAY; } //功能描述：设置播放器的音量百分比 //参数描述：无 //返回值 ：无 void CAacPlayerEngine::SetVolume(TInt aPercent) { TInt aMaxVolume = iPlayerStream->MaxVolume(); iPlayerStream->SetVolume(aMaxVolume * aPercent / 100); } void CAacPlayerEngine::MaoscOpenComplete(TInt aError) { //LOG_FORMAT((_L("enter CAacPlayerEngine::MaoscOpenComplete = %d"), aError)); if (aError == KErrNone) { iInit = ETrue; iPlayerStream->SetDataTypeL(KMMFFourCCCodePCM16); // iPlayerStream->SetAudioPropertiesL( // TMdaAudioDataSettings::ESampleRate16000Hz, // TMdaAudioDataSettings::EChannelsStereo); iPlayerStream->SetAudioPropertiesL( TMdaAudioDataSettings::ESampleRate22050Hz, TMdaAudioDataSettings::EChannelsMono); TInt aMaxVolume = iPlayerStream->MaxVolume(); iPlayerStream->SetVolume(aMaxVolume * 50 / 100); iPlayerStream->SetPriority(EPriorityNormal, EMdaPriorityPreferenceNone); WriteStreamData(); } else { Stop(); } TRAPD(err, iObserver.AudioOpenCompleteNotifyL(aError)); //LOG(_L("leave CAacPlayerEngine::MaoscOpenComplete")); } void CAacPlayerEngine::MaoscBufferCopied(TInt aError, const TDesC8& /*aBuffer*/) { ////LOG(_L("enter CAacPlayerEngine::MaoscBufferCopied")); delete iCurrWavData; iCurrWavData = NULL; if (aError == KErrNone) { if (iPlayState != ENUM_PLAY_PAUSE) { WriteStreamData(); } } else { TRAPD(err, iObserver.AudioErrorNotifyL(aError)); } ////LOG(_L("leave CAacPlayerEngine::MaoscBufferCopied")); } void CAacPlayerEngine::MaoscPlayComplete(TInt aError) { //LOG_FORMAT((_L("enter CAacPlayerEngine::MaoscPlayComplete = %d"), aError)); delete iCurrWavData; iCurrWavData = NULL; if (aError == KErrUnderflow || aError == KErrNone) { if (iPlayState != ENUM_PLAY_PAUSE) { //LOG_FORMAT((_L("iPlayedBytes = %d, iTotalBytes = %d"), iPlayedBytes, iTotalBytes)); if (iTotalBytes - iPlayedBytes > iTotalBytes / 20) { WriteStreamData(); } else { TRAPD(err, iObserver.AudioPlayCompleteNotifyL(KErrNone)); } } } else { TRAPD(err, iObserver.AudioPlayCompleteNotifyL(aError)); } //LOG(_L("leave CAacPlayerEngine::MaoscPlayComplete")); } TInt CAacPlayerEngine::AppendData(const TDesC8& aData) { ////LOG(_L("enter CAacPlayerEngine::AppendData")); const TInt SEGMENT_SIZE = 1024; const TInt SEGMENT_LIMIT_SIZE = 300; TInt len = aData.Length(); TInt pos = 0; while (pos < len) { TInt size = SEGMENT_SIZE; if (len - pos - size < SEGMENT_LIMIT_SIZE) { size = len - pos; } HBufC8* data = HBufC8::NewL(size); data->Des().Copy(aData.Mid(pos, size)); iAacData.AppendL(data); pos += size; } //LOG_FORMAT((_L("CAacPlayerEngine::AppendData iInit = %d, iWaitingData = %d"), iInit, iWaitingData)); if (iPlayState != ENUM_PLAY_PAUSE && iWaitingData && iInit) { WriteStreamData(); } ////LOG(_L("leave CAacPlayerEngine::AppendData")); return iAacData.Count(); } void CAacPlayerEngine::WriteStreamData() { ////LOG(_L("enter CAacPlayerEngine::WriteStreamData")); //检测AAC的Buf数 this->ResposeBufCount(); //当前数据还在播放, 所以只能忽略 if (iCurrWavData) { return; } if (iWavData.Count() < 1) { PoliticDecode(); } DoWriteStreamData(); ////LOG(_L("leave CAacPlayerEngine::WriteStreamData")); } void CAacPlayerEngine::PoliticDecode() { ////LOG(_L("enter CAacPlayerEngine::PoliticDecode")); if (iWavData.Count() < 1) { TInt num = Min(iAacData.Count(), 1); for (TInt i = 0; i < num; i++) { HBufC8* data = iAacData[0]; iAacData.Remove(0); CMMFDescriptorBuffer* dest = Aac2Wav(data->Des()); delete data; if (dest) { iWavData.AppendL(dest); } else { //LOG(_L("Aac2Wav failed, so notify finish")); // CBrokenCallObject::NewBrokenCallLD(&CallFinishNotifyL, this); } } } ////LOG(_L("leave CAacPlayerEngine::PoliticDecode")); } void CAacPlayerEngine::DoWriteStreamData() { //LOG_FORMAT((_L("enter CAacPlayerEngine::DoWriteStreamData::MaoscPlayComplete = %d"), iWaitingData)); if (iWavData.Count() > 0) { __ASSERT_DEBUG(iCurrWavData == NULL, User::Panic(_L("error iCurrWavData != NULL"), KErrInUse)); iCurrWavData = iWavData[0]; iWavData.Remove(0); iPlayerStream->WriteL(iCurrWavData->Data()); iWaitingData = EFalse; } else { iWaitingData = ETrue; } //LOG_FORMAT((_L("leave CAacPlayerEngine::DoWriteStreamData::MaoscPlayComplete = %d"), iWaitingData)); } CMMFDescriptorBuffer* CAacPlayerEngine::Aac2Wav(const TDesC8& aData) { ////LOG(_L("enter CAacPlayerEngine::Aac2Wav")); TInt remainLen = 0; if (iAacRemainData) { remainLen = iAacRemainData->Des().Length(); } CMMFDescriptorBuffer* src = CMMFDescriptorBuffer::NewL(aData.Length() + remainLen); TPtr8 ptr((TUint8*) (src->Data().Ptr()), 0, src->Data().MaxLength()); if (iAacRemainData) { ptr.Append(iAacRemainData->Des()); delete iAacRemainData; iAacRemainData = NULL; } ptr.Append(aData); TInt frameNum = 0; TInt len = ptr.Length(); TInt lastFramePos = 0; const TUint8* datap = ptr.Ptr(); TInt i = 0; while (i < (len - 6)) { if ((datap[i] != 0xff) || ((datap[i + 1] & 0xf0) != 0xf0)) { if ((datap[i + 2] & 0xf0) != 0xf0) { //LOG_FORMAT((_L("datap[%d] = 0x%02x, datap[%d] = 0x%02x, datap[%d] = 0x%02x"), i, datap[i], i+1, datap[i+1], i+2, datap[i+2])); } i++; continue; } lastFramePos = i; TInt frameSize = (datap[i + 2] << 24) | (datap[i + 3] << 16) | (datap[i + 4] << 8) | datap[i + 5]; frameSize &= 0x0003ffc0; frameSize >>= 5; if (frameSize + i > len) { /