/* * 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 "SoftGSM" #include #include "SoftGSM.h" #include #include namespace android { template 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; } // Microsoft WAV GSM encoding packs two GSM frames into 65 bytes. static const int kMSGSMFrameSize = 65; SoftGSM::SoftGSM( const char *name, const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData, OMX_COMPONENTTYPE **component) : SimpleSoftOMXComponent(name, callbacks, appData, component), mSignalledError(false) { CHECK(!strcmp(name, "OMX.google.gsm.decoder")); mGsm = gsm_create(); CHECK(mGsm); int msopt = 1; gsm_option(mGsm, GSM_OPT_WAV49, &msopt); initPorts(); } SoftGSM::~SoftGSM() { gsm_destroy(mGsm); } void SoftGSM::initPorts() { OMX_PARAM_PORTDEFINITIONTYPE def; InitOMXParams(&def); def.nPortIndex = 0; def.eDir = OMX_DirInput; def.nBufferCountMin = kNumBuffers; def.nBufferCountActual = def.nBufferCountMin; def.nBufferSize = 1024 / kMSGSMFrameSize * kMSGSMFrameSize; 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(MEDIA_MIMETYPE_AUDIO_MSGSM); def.format.audio.pNativeRender = NULL; def.format.audio.bFlagErrorConcealment = OMX_FALSE; def.format.audio.eEncoding = OMX_AUDIO_CodingGSMFR; addPort(def); def.nPortIndex = 1; def.eDir = OMX_DirOutput; def.nBufferCountMin = kNumBuffers; def.nBufferCountActual = def.nBufferCountMin; def.nBufferSize = kMaxNumSamplesPerFrame * sizeof(int16_t); 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("audio/raw"); def.format.audio.pNativeRender = NULL; def.format.audio.bFlagErrorConcealment = OMX_FALSE; def.format.audio.eEncoding = OMX_AUDIO_CodingPCM; addPort(def); } OMX_ERRORTYPE SoftGSM::internalGetParameter( OMX_INDEXTYPE index, OMX_PTR params) { switch (index) { case OMX_IndexParamAudioPcm: { OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams = (OMX_AUDIO_PARAM_PCMMODETYPE *)params; if (!isValidOMXParam(pcmParams)) { return OMX_ErrorBadParameter; } if (pcmParams->nPortIndex > 1) { 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_ChannelLF; pcmParams->eChannelMapping[1] = OMX_AUDIO_ChannelRF; pcmParams->nChannels = 1; pcmParams->nSamplingRate = 8000; return OMX_ErrorNone; } default: return SimpleSoftOMXComponent::internalGetParameter(index, params); } } OMX_ERRORTYPE SoftGSM::internalSetParameter( OMX_INDEXTYPE index, const OMX_PTR params) { switch (index) { case OMX_IndexParamAudioPcm: { OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams = (OMX_AUDIO_PARAM_PCMMODETYPE *)params; if (!isValidOMXParam(pcmParams)) { return OMX_ErrorBadParameter; } if (pcmParams->nPortIndex != 0 && pcmParams->nPortIndex != 1) { return OMX_ErrorUndefined; } if (pcmParams->nChannels != 1) { return OMX_ErrorUndefined; } if (pcmParams->nSamplingRate != 8000) { return OMX_ErrorUndefined; } return OMX_ErrorNone; } case OMX_IndexParamStandardComponentRole: { const OMX_PARAM_COMPONENTROLETYPE *roleParams = (const OMX_PARAM_COMPONENTROLETYPE *)params; if (!isValidOMXParam(roleParams)) { return OMX_ErrorBadParameter; } if (strncmp((const char *)roleParams->cRole, "audio_decoder.gsm", OMX_MAX_STRINGNAME_SIZE - 1)) { return OMX_ErrorUndefined; } return OMX_ErrorNone; } default: return SimpleSoftOMXComponent::internalSetParameter(index, params); } } void SoftGSM::onQueueFilled(OMX_U32 /* portIndex */) { if (mSignalledError) { return; } List &inQueue = getPortQueue(0); List &outQueue = getPortQueue(1); while (!inQueue.empty() && !outQueue.empty()) { BufferInfo *inInfo = *inQueue.begin(); OMX_BUFFERHEADERTYPE *inHeader = inInfo->mHeader; BufferInfo *outInfo = *outQueue.begin(); OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader; if (inHeader->nFlags & OMX_BUFFERFLAG_EOS) { inQueue.erase(inQueue.begin()); inInfo->mOwnedByUs = false; notifyEmptyBufferDone(inHeader); outHeader->nFilledLen = 0; outHeader->nFlags = OMX_BUFFERFLAG_EOS; outQueue.erase(outQueue.begin()); outInfo->mOwnedByUs = false; notifyFillBufferDone(outHeader); return; } if (inHeader->nFilledLen > kMaxNumSamplesPerFrame) { ALOGE("input buffer too large (%d).", inHeader->nFilledLen); notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL); mSignalledError = true; } if(((inHeader->nFilledLen / kMSGSMFrameSize) * kMSGSMFrameSize) != inHeader->nFilledLen) { ALOGE("input buffer not multiple of %d (%d).", kMSGSMFrameSize, inHeader->nFilledLen); notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL); mSignalledError = true; } if (outHeader->nAllocLen < (inHeader->nFilledLen / kMSGSMFrameSize) * 320) { ALOGE("output buffer is not large enough (%d).", outHeader->nAllocLen); android_errorWriteLog(0x534e4554, "27793367"); notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL); mSignalledError = true; return; } uint8_t *inputptr = inHeader->pBuffer + inHeader->nOffset; int n = mSignalledError ? 0 : DecodeGSM(mGsm, reinterpret_cast(outHeader->pBuffer), inputptr, inHeader->nFilledLen); outHeader->nTimeStamp = inHeader->nTimeStamp; outHeader->nOffset = 0; outHeader->nFilledLen = n * sizeof(int16_t); outHeader->nFlags = 0; inInfo->mOwnedByUs = false; inQueue.erase(inQueue.begin()); inInfo = NULL; notifyEmptyBufferDone(inHeader); inHeader = NULL; outInfo->mOwnedByUs = false; outQueue.erase(outQueue.begin()); outInfo = NULL; notifyFillBufferDone(outHeader); outHeader = NULL; } } // static int SoftGSM::DecodeGSM(gsm handle, int16_t *out, uint8_t *in, size_t inSize) { int ret = 0; while (inSize > 0) { gsm_decode(handle, in, out); in += 33; inSize -= 33; out += 160; ret += 160; gsm_decode(handle, in, out); in += 32; inSize -= 32; out += 160; ret += 160; } return ret; } void SoftGSM::onPortFlushCompleted(OMX_U32 portIndex) { if (portIndex == 0) { gsm_destroy(mGsm); mGsm = gsm_create(); int msopt = 1; gsm_option(mGsm, GSM_OPT_WAV49, &msopt); } } void SoftGSM::onReset() { gsm_destroy(mGsm); mGsm = gsm_create(); int msopt = 1; gsm_option(mGsm, GSM_OPT_WAV49, &msopt); mSignalledError = false; } } // namespace android android::SoftOMXComponent *createSoftOMXComponent( const char *name, const OMX_CALLBACKTYPE *callbacks, OMX_PTR appData, OMX_COMPONENTTYPE **component) { return new android::SoftGSM(name, callbacks, appData, component); }