| /* |
| * 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 "SoftFlacEncoder" |
| #include <utils/Log.h> |
| |
| #include "SoftFlacEncoder.h" |
| |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/MediaDefs.h> |
| |
| #define FLAC_COMPRESSION_LEVEL_MIN 0 |
| #define FLAC_COMPRESSION_LEVEL_DEFAULT 5 |
| #define FLAC_COMPRESSION_LEVEL_MAX 8 |
| |
| namespace android { |
| |
| 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; |
| } |
| |
| SoftFlacEncoder::SoftFlacEncoder( |
| const char *name, |
| const OMX_CALLBACKTYPE *callbacks, |
| OMX_PTR appData, |
| OMX_COMPONENTTYPE **component) |
| : SimpleSoftOMXComponent(name, callbacks, appData, component), |
| mSignalledError(false), |
| mNumChannels(1), |
| mSampleRate(44100), |
| mCompressionLevel(FLAC_COMPRESSION_LEVEL_DEFAULT), |
| mEncoderWriteData(false), |
| mEncoderReturnedEncodedData(false), |
| mEncoderReturnedNbBytes(0), |
| mInputBufferPcm32(NULL) |
| #ifdef WRITE_FLAC_HEADER_IN_FIRST_BUFFER |
| , mHeaderOffset(0) |
| , mWroteHeader(false) |
| #endif |
| { |
| ALOGV("SoftFlacEncoder::SoftFlacEncoder(name=%s)", name); |
| initPorts(); |
| |
| mFlacStreamEncoder = FLAC__stream_encoder_new(); |
| if (mFlacStreamEncoder == NULL) { |
| ALOGE("SoftFlacEncoder::SoftFlacEncoder(name=%s) error instantiating FLAC encoder", name); |
| mSignalledError = true; |
| } |
| |
| if (!mSignalledError) { // no use allocating input buffer if we had an error above |
| mInputBufferPcm32 = (FLAC__int32*) malloc(sizeof(FLAC__int32) * 2 * kMaxNumSamplesPerFrame); |
| if (mInputBufferPcm32 == NULL) { |
| ALOGE("SoftFlacEncoder::SoftFlacEncoder(name=%s) error allocating internal input buffer", name); |
| mSignalledError = true; |
| } |
| } |
| } |
| |
| SoftFlacEncoder::~SoftFlacEncoder() { |
| ALOGV("SoftFlacEncoder::~SoftFlacEncoder()"); |
| if (mFlacStreamEncoder != NULL) { |
| FLAC__stream_encoder_delete(mFlacStreamEncoder); |
| mFlacStreamEncoder = NULL; |
| } |
| free(mInputBufferPcm32); |
| mInputBufferPcm32 = NULL; |
| } |
| |
| OMX_ERRORTYPE SoftFlacEncoder::initCheck() const { |
| if (mSignalledError) { |
| if (mFlacStreamEncoder == NULL) { |
| ALOGE("initCheck() failed due to NULL encoder"); |
| } else if (mInputBufferPcm32 == NULL) { |
| ALOGE("initCheck() failed due to error allocating internal input buffer"); |
| } |
| return OMX_ErrorUndefined; |
| } else { |
| return SimpleSoftOMXComponent::initCheck(); |
| } |
| } |
| |
| void SoftFlacEncoder::initPorts() { |
| ALOGV("SoftFlacEncoder::initPorts()"); |
| |
| OMX_PARAM_PORTDEFINITIONTYPE def; |
| InitOMXParams(&def); |
| |
| // configure input port of the encoder |
| def.nPortIndex = 0; |
| def.eDir = OMX_DirInput; |
| def.nBufferCountMin = kNumBuffers;// TODO verify that 1 is enough |
| def.nBufferCountActual = def.nBufferCountMin; |
| def.nBufferSize = kMaxInputBufferSize; |
| 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/raw"); |
| def.format.audio.pNativeRender = NULL; |
| def.format.audio.bFlagErrorConcealment = OMX_FALSE; |
| def.format.audio.eEncoding = OMX_AUDIO_CodingPCM; |
| |
| addPort(def); |
| |
| // configure output port of the encoder |
| def.nPortIndex = 1; |
| def.eDir = OMX_DirOutput; |
| def.nBufferCountMin = kNumBuffers;// TODO verify that 1 is enough |
| def.nBufferCountActual = def.nBufferCountMin; |
| def.nBufferSize = kMaxOutputBufferSize; |
| 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 *>(MEDIA_MIMETYPE_AUDIO_FLAC); |
| def.format.audio.pNativeRender = NULL; |
| def.format.audio.bFlagErrorConcealment = OMX_FALSE; |
| def.format.audio.eEncoding = OMX_AUDIO_CodingFLAC; |
| |
| addPort(def); |
| } |
| |
| OMX_ERRORTYPE SoftFlacEncoder::internalGetParameter( |
| OMX_INDEXTYPE index, OMX_PTR params) { |
| ALOGV("SoftFlacEncoder::internalGetParameter(index=0x%x)", index); |
| |
| switch (index) { |
| case OMX_IndexParamAudioPcm: |
| { |
| OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams = |
| (OMX_AUDIO_PARAM_PCMMODETYPE *)params; |
| |
| 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 = mNumChannels; |
| pcmParams->nSamplingRate = mSampleRate; |
| |
| return OMX_ErrorNone; |
| } |
| |
| case OMX_IndexParamAudioFlac: |
| { |
| OMX_AUDIO_PARAM_FLACTYPE *flacParams = (OMX_AUDIO_PARAM_FLACTYPE *)params; |
| flacParams->nCompressionLevel = mCompressionLevel; |
| flacParams->nChannels = mNumChannels; |
| flacParams->nSampleRate = mSampleRate; |
| return OMX_ErrorNone; |
| } |
| |
| default: |
| return SimpleSoftOMXComponent::internalGetParameter(index, params); |
| } |
| } |
| |
| OMX_ERRORTYPE SoftFlacEncoder::internalSetParameter( |
| OMX_INDEXTYPE index, const OMX_PTR params) { |
| switch (index) { |
| case OMX_IndexParamAudioPcm: |
| { |
| ALOGV("SoftFlacEncoder::internalSetParameter(OMX_IndexParamAudioPcm)"); |
| OMX_AUDIO_PARAM_PCMMODETYPE *pcmParams = (OMX_AUDIO_PARAM_PCMMODETYPE *)params; |
| |
| if (pcmParams->nPortIndex != 0 && pcmParams->nPortIndex != 1) { |
| ALOGE("SoftFlacEncoder::internalSetParameter() Error #1"); |
| return OMX_ErrorUndefined; |
| } |
| |
| if (pcmParams->nChannels < 1 || pcmParams->nChannels > 2) { |
| return OMX_ErrorUndefined; |
| } |
| |
| mNumChannels = pcmParams->nChannels; |
| mSampleRate = pcmParams->nSamplingRate; |
| ALOGV("will encode %ld channels at %ldHz", mNumChannels, mSampleRate); |
| |
| return configureEncoder(); |
| } |
| |
| case OMX_IndexParamStandardComponentRole: |
| { |
| ALOGV("SoftFlacEncoder::internalSetParameter(OMX_IndexParamStandardComponentRole)"); |
| const OMX_PARAM_COMPONENTROLETYPE *roleParams = |
| (const OMX_PARAM_COMPONENTROLETYPE *)params; |
| |
| if (strncmp((const char *)roleParams->cRole, |
| "audio_encoder.flac", |
| OMX_MAX_STRINGNAME_SIZE - 1)) { |
| ALOGE("SoftFlacEncoder::internalSetParameter(OMX_IndexParamStandardComponentRole)" |
| "error"); |
| return OMX_ErrorUndefined; |
| } |
| |
| return OMX_ErrorNone; |
| } |
| |
| case OMX_IndexParamAudioFlac: |
| { |
| // used only for setting the compression level |
| OMX_AUDIO_PARAM_FLACTYPE *flacParams = (OMX_AUDIO_PARAM_FLACTYPE *)params; |
| mCompressionLevel = flacParams->nCompressionLevel; // range clamping done inside encoder |
| return OMX_ErrorNone; |
| } |
| |
| case OMX_IndexParamPortDefinition: |
| { |
| OMX_PARAM_PORTDEFINITIONTYPE *defParams = |
| (OMX_PARAM_PORTDEFINITIONTYPE *)params; |
| |
| if (defParams->nPortIndex == 0) { |
| if (defParams->nBufferSize > kMaxInputBufferSize) { |
| ALOGE("Input buffer size must be at most %zu bytes", |
| kMaxInputBufferSize); |
| return OMX_ErrorUnsupportedSetting; |
| } |
| } |
| |
| // fall through |
| } |
| |
| default: |
| ALOGV("SoftFlacEncoder::internalSetParameter(default)"); |
| return SimpleSoftOMXComponent::internalSetParameter(index, params); |
| } |
| } |
| |
| void SoftFlacEncoder::onQueueFilled(OMX_U32 portIndex) { |
| |
| ALOGV("SoftFlacEncoder::onQueueFilled(portIndex=%ld)", portIndex); |
| |
| if (mSignalledError) { |
| return; |
| } |
| |
| List<BufferInfo *> &inQueue = getPortQueue(0); |
| List<BufferInfo *> &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 > kMaxInputBufferSize) { |
| ALOGE("input buffer too large (%ld).", inHeader->nFilledLen); |
| mSignalledError = true; |
| notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL); |
| return; |
| } |
| |
| assert(mNumChannels != 0); |
| mEncoderWriteData = true; |
| mEncoderReturnedEncodedData = false; |
| mEncoderReturnedNbBytes = 0; |
| mCurrentInputTimeStamp = inHeader->nTimeStamp; |
| |
| const unsigned nbInputFrames = inHeader->nFilledLen / (2 * mNumChannels); |
| const unsigned nbInputSamples = inHeader->nFilledLen / 2; |
| const OMX_S16 * const pcm16 = reinterpret_cast<OMX_S16 *>(inHeader->pBuffer); |
| |
| CHECK_LE(nbInputSamples, 2 * kMaxNumSamplesPerFrame); |
| for (unsigned i=0 ; i < nbInputSamples ; i++) { |
| mInputBufferPcm32[i] = (FLAC__int32) pcm16[i]; |
| } |
| ALOGV(" about to encode %u samples per channel", nbInputFrames); |
| FLAC__bool ok = FLAC__stream_encoder_process_interleaved( |
| mFlacStreamEncoder, |
| mInputBufferPcm32, |
| nbInputFrames /*samples per channel*/ ); |
| |
| if (ok) { |
| if (mEncoderReturnedEncodedData && (mEncoderReturnedNbBytes != 0)) { |
| ALOGV(" dequeueing buffer on output port after writing data"); |
| outInfo->mOwnedByUs = false; |
| outQueue.erase(outQueue.begin()); |
| outInfo = NULL; |
| notifyFillBufferDone(outHeader); |
| outHeader = NULL; |
| mEncoderReturnedEncodedData = false; |
| } else { |
| ALOGV(" encoder process_interleaved returned without data to write"); |
| } |
| } else { |
| ALOGE(" error encountered during encoding"); |
| mSignalledError = true; |
| notify(OMX_EventError, OMX_ErrorUndefined, 0, NULL); |
| return; |
| } |
| |
| inInfo->mOwnedByUs = false; |
| inQueue.erase(inQueue.begin()); |
| inInfo = NULL; |
| notifyEmptyBufferDone(inHeader); |
| inHeader = NULL; |
| } |
| } |
| |
| |
| FLAC__StreamEncoderWriteStatus SoftFlacEncoder::onEncodedFlacAvailable( |
| const FLAC__byte buffer[], |
| size_t bytes, unsigned samples, unsigned current_frame) { |
| ALOGV("SoftFlacEncoder::onEncodedFlacAvailable(bytes=%d, samples=%d, curr_frame=%d)", |
| bytes, samples, current_frame); |
| |
| #ifdef WRITE_FLAC_HEADER_IN_FIRST_BUFFER |
| if (samples == 0) { |
| ALOGI(" saving %d bytes of header", bytes); |
| memcpy(mHeader + mHeaderOffset, buffer, bytes); |
| mHeaderOffset += bytes;// will contain header size when finished receiving header |
| return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; |
| } |
| |
| #endif |
| |
| if ((samples == 0) || !mEncoderWriteData) { |
| // called by the encoder because there's header data to save, but it's not the role |
| // of this component (unless WRITE_FLAC_HEADER_IN_FIRST_BUFFER is defined) |
| ALOGV("ignoring %d bytes of header data (samples=%d)", bytes, samples); |
| return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; |
| } |
| |
| List<BufferInfo *> &outQueue = getPortQueue(1); |
| CHECK(!outQueue.empty()); |
| BufferInfo *outInfo = *outQueue.begin(); |
| OMX_BUFFERHEADERTYPE *outHeader = outInfo->mHeader; |
| |
| #ifdef WRITE_FLAC_HEADER_IN_FIRST_BUFFER |
| if (!mWroteHeader) { |
| ALOGI(" writing %d bytes of header on output port", mHeaderOffset); |
| memcpy(outHeader->pBuffer + outHeader->nOffset + outHeader->nFilledLen, |
| mHeader, mHeaderOffset); |
| outHeader->nFilledLen += mHeaderOffset; |
| outHeader->nOffset += mHeaderOffset; |
| mWroteHeader = true; |
| } |
| #endif |
| |
| // write encoded data |
| ALOGV(" writing %d bytes of encoded data on output port", bytes); |
| if (bytes > outHeader->nAllocLen - outHeader->nOffset - outHeader->nFilledLen) { |
| ALOGE(" not enough space left to write encoded data, dropping %u bytes", bytes); |
| // a fatal error would stop the encoding |
| return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; |
| } |
| memcpy(outHeader->pBuffer + outHeader->nOffset, buffer, bytes); |
| |
| outHeader->nTimeStamp = mCurrentInputTimeStamp; |
| outHeader->nOffset = 0; |
| outHeader->nFilledLen += bytes; |
| outHeader->nFlags = 0; |
| |
| mEncoderReturnedEncodedData = true; |
| mEncoderReturnedNbBytes += bytes; |
| |
| return FLAC__STREAM_ENCODER_WRITE_STATUS_OK; |
| } |
| |
| |
| OMX_ERRORTYPE SoftFlacEncoder::configureEncoder() { |
| ALOGV("SoftFlacEncoder::configureEncoder() numChannel=%ld, sampleRate=%ld", |
| mNumChannels, mSampleRate); |
| |
| if (mSignalledError || (mFlacStreamEncoder == NULL)) { |
| ALOGE("can't configure encoder: no encoder or invalid state"); |
| return OMX_ErrorInvalidState; |
| } |
| |
| FLAC__bool ok = true; |
| FLAC__StreamEncoderInitStatus initStatus = FLAC__STREAM_ENCODER_INIT_STATUS_OK; |
| ok = ok && FLAC__stream_encoder_set_channels(mFlacStreamEncoder, mNumChannels); |
| ok = ok && FLAC__stream_encoder_set_sample_rate(mFlacStreamEncoder, mSampleRate); |
| ok = ok && FLAC__stream_encoder_set_bits_per_sample(mFlacStreamEncoder, 16); |
| ok = ok && FLAC__stream_encoder_set_compression_level(mFlacStreamEncoder, |
| (unsigned)mCompressionLevel); |
| ok = ok && FLAC__stream_encoder_set_verify(mFlacStreamEncoder, false); |
| if (!ok) { goto return_result; } |
| |
| ok &= FLAC__STREAM_ENCODER_INIT_STATUS_OK == |
| FLAC__stream_encoder_init_stream(mFlacStreamEncoder, |
| flacEncoderWriteCallback /*write_callback*/, |
| NULL /*seek_callback*/, |
| NULL /*tell_callback*/, |
| NULL /*metadata_callback*/, |
| (void *) this /*client_data*/); |
| |
| return_result: |
| if (ok) { |
| ALOGV("encoder successfully configured"); |
| return OMX_ErrorNone; |
| } else { |
| ALOGE("unknown error when configuring encoder"); |
| return OMX_ErrorUndefined; |
| } |
| } |
| |
| |
| // static |
| FLAC__StreamEncoderWriteStatus SoftFlacEncoder::flacEncoderWriteCallback( |
| const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], |
| size_t bytes, unsigned samples, unsigned current_frame, void *client_data) { |
| return ((SoftFlacEncoder*) client_data)->onEncodedFlacAvailable( |
| buffer, bytes, samples, current_frame); |
| } |
| |
| } // namespace android |
| |
| |
| android::SoftOMXComponent *createSoftOMXComponent( |
| const char *name, const OMX_CALLBACKTYPE *callbacks, |
| OMX_PTR appData, OMX_COMPONENTTYPE **component) { |
| return new android::SoftFlacEncoder(name, callbacks, appData, component); |
| } |
| |