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+/* -----------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
+Forschung e.V. All rights reserved.
+
+ 1. INTRODUCTION
+The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
+that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
+scheme for digital audio. This FDK AAC Codec software is intended to be used on
+a wide variety of Android devices.
+
+AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
+general perceptual audio codecs. AAC-ELD is considered the best-performing
+full-bandwidth communications codec by independent studies and is widely
+deployed. AAC has been standardized by ISO and IEC as part of the MPEG
+specifications.
+
+Patent licenses for necessary patent claims for the FDK AAC Codec (including
+those of Fraunhofer) may be obtained through Via Licensing
+(www.vialicensing.com) or through the respective patent owners individually for
+the purpose of encoding or decoding bit streams in products that are compliant
+with the ISO/IEC MPEG audio standards. Please note that most manufacturers of
+Android devices already license these patent claims through Via Licensing or
+directly from the patent owners, and therefore FDK AAC Codec software may
+already be covered under those patent licenses when it is used for those
+licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions
+with enhanced sound quality, are also available from Fraunhofer. Users are
+encouraged to check the Fraunhofer website for additional applications
+information and documentation.
+
+2. COPYRIGHT LICENSE
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted without payment of copyright license fees provided that you
+satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of
+the FDK AAC Codec or your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation
+and/or other materials provided with redistributions of the FDK AAC Codec or
+your modifications thereto in binary form. You must make available free of
+charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived
+from this library without prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute
+the FDK AAC Codec software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating
+that you changed the software and the date of any change. For modified versions
+of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android"
+must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK
+AAC Codec Library for Android."
+
+3. NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without
+limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE.
+Fraunhofer provides no warranty of patent non-infringement with respect to this
+software.
+
+You may use this FDK AAC Codec software or modifications thereto only for
+purposes that are authorized by appropriate patent licenses.
+
+4. DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
+holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES,
+including but not limited to the implied warranties of merchantability and
+fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary,
+or consequential damages, including but not limited to procurement of substitute
+goods or services; loss of use, data, or profits, or business interruption,
+however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of
+this software, even if advised of the possibility of such damage.
+
+5. CONTACT INFORMATION
+
+Fraunhofer Institute for Integrated Circuits IIS
+Attention: Audio and Multimedia Departments - FDK AAC LL
+Am Wolfsmantel 33
+91058 Erlangen, Germany
+
+www.iis.fraunhofer.de/amm
+amm-info@iis.fraunhofer.de
+----------------------------------------------------------------------------- */
+
+/******************* MPEG transport format encoder library *********************
+
+ Author(s): Manuel Jander
+
+ Description: MPEG Transport encode
+
+*******************************************************************************/
+
+#include "tpenc_lib.h"
+
+/* library info */
+#include "tp_version.h"
+
+#define MODULE_NAME "transportEnc"
+
+#include "tpenc_asc.h"
+
+#include "tpenc_adts.h"
+
+#include "tpenc_adif.h"
+
+#include "tpenc_dab.h"
+
+#include "tpenc_latm.h"
+
+typedef struct {
+ int curSubFrame;
+ int nSubFrames;
+ int prevBits;
+} RAWPACKETS_INFO;
+
+struct TRANSPORTENC {
+ CODER_CONFIG config;
+ TRANSPORT_TYPE transportFmt; /*!< MPEG4 transport type. */
+
+ FDK_BITSTREAM bitStream;
+ UCHAR *bsBuffer;
+ INT bsBufferSize;
+
+ INT pceFrameCounter; /*!< Indicates frame period when PCE must be written in
+ raw_data_block. -1 means not to write a PCE in
+ raw_dat_block. */
+ union {
+ STRUCT_ADTS adts;
+
+ ADIF_INFO adif;
+
+ STRUCT_DAB dab;
+
+ LATM_STREAM latm;
+
+ RAWPACKETS_INFO raw;
+
+ } writer;
+
+ CSTpCallBacks callbacks;
+};
+
+typedef struct _TRANSPORTENC_STRUCT TRANSPORTENC_STRUCT;
+
+/*
+ * MEMORY Declaration
+ */
+
+C_ALLOC_MEM(Ram_TransportEncoder, struct TRANSPORTENC, 1)
+
+TRANSPORTENC_ERROR transportEnc_Open(HANDLE_TRANSPORTENC *phTpEnc) {
+ HANDLE_TRANSPORTENC hTpEnc;
+
+ if (phTpEnc == NULL) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+
+ hTpEnc = GetRam_TransportEncoder(0);
+
+ if (hTpEnc == NULL) {
+ return TRANSPORTENC_NO_MEM;
+ }
+
+ *phTpEnc = hTpEnc;
+ return TRANSPORTENC_OK;
+}
+
+/**
+ * \brief Get frame period of PCE in raw_data_block.
+ *
+ * - Write PCE only if necessary. PCE can be part of the ASC if chConfig==0
+ * whererfore no additonal PCE will be written in raw_data_block.
+ * - A matrixMixdown coefficient can only be written if chConfig is 5.0 or 5.1.
+ * - The PCE repetition rate in raw_data_block can be controlled via
+ * headerPeriod parameter.
+ *
+ * \param channelMode Encoder Channel Mode.
+ * \param channelConfigZero No standard channel configuration.
+ * \param transportFmt Format of the transport to be written.
+ * \param headerPeriod Chosen PCE frame repetition rate.
+ * \param matrixMixdownA Indicates if a valid Matrix Mixdown coefficient
+ * is available.
+ *
+ * \return PCE frame repetition rate. -1 means no PCE present in
+ * raw_data_block.
+ */
+static INT getPceRepetitionRate(const CHANNEL_MODE channelMode,
+ const int channelConfigZero,
+ const TRANSPORT_TYPE transportFmt,
+ const int headerPeriod,
+ const int matrixMixdownA) {
+ INT pceFrameCounter = -1; /* variable to be returned */
+
+ if (headerPeriod > 0) {
+ switch (getChannelConfig(channelMode, channelConfigZero)) {
+ case 0:
+ switch (transportFmt) {
+ case TT_MP4_ADTS:
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_RAW:
+ pceFrameCounter = headerPeriod;
+ break;
+ case TT_MP4_ADIF: /* ADIF header comprises PCE */
+ if ((channelMode == MODE_1_2_2) || (channelMode == MODE_1_2_2_1)) {
+ pceFrameCounter = headerPeriod; /* repeating pce only meaningful
+ for potential matrix mixdown */
+ break;
+ }
+ FDK_FALLTHROUGH;
+ case TT_MP4_LOAS: /* PCE in ASC if chChonfig==0 */
+ case TT_MP4_LATM_MCP1: /* PCE in ASC if chChonfig==0 */
+ case TT_DABPLUS:
+ default:
+ pceFrameCounter = -1; /* no PCE in raw_data_block */
+ }
+ break;
+ case 5: /* MODE_1_2_2 */
+ case 6: /* MODE_1_2_2_1 */
+ /* matrixMixdownCoefficient can only be written if 5.0 and 5.1 config
+ * present. */
+ if (matrixMixdownA != 0) {
+ switch (transportFmt) {
+ case TT_MP4_ADIF: /* ADIF header comprises PCE */
+ case TT_MP4_ADTS:
+ case TT_MP4_LOAS: /* no PCE in ASC because chConfig!=0 */
+ case TT_MP4_LATM_MCP1: /* no PCE in ASC because chConfig!=0 */
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_RAW:
+ pceFrameCounter = headerPeriod;
+ break;
+ case TT_DABPLUS:
+ default:
+ pceFrameCounter = -1; /* no PCE in raw_data_block */
+ } /* switch transportFmt */
+ } /* if matrixMixdownA!=0 */
+ break;
+ default:
+ pceFrameCounter = -1; /* no PCE in raw_data_block */
+ } /* switch getChannelConfig() */
+ } /* if headerPeriod>0 */
+ else {
+ pceFrameCounter = -1; /* no PCE in raw_data_block */
+ }
+
+ return pceFrameCounter;
+}
+
+TRANSPORTENC_ERROR transportEnc_Init(HANDLE_TRANSPORTENC hTpEnc,
+ UCHAR *bsBuffer, INT bsBufferSize,
+ TRANSPORT_TYPE transportFmt,
+ CODER_CONFIG *cconfig, UINT flags) {
+ /* Copy configuration structure */
+ FDKmemcpy(&hTpEnc->config, cconfig, sizeof(CODER_CONFIG));
+
+ /* Init transportEnc struct. */
+ hTpEnc->transportFmt = transportFmt;
+
+ hTpEnc->bsBuffer = bsBuffer;
+ hTpEnc->bsBufferSize = bsBufferSize;
+
+ FDKinitBitStream(&hTpEnc->bitStream, hTpEnc->bsBuffer, hTpEnc->bsBufferSize,
+ 0, BS_WRITER);
+
+ switch (transportFmt) {
+ case TT_MP4_ADIF:
+ /* Sanity checks */
+ if ((hTpEnc->config.aot != AOT_AAC_LC) ||
+ (hTpEnc->config.samplesPerFrame != 1024)) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ hTpEnc->writer.adif.headerWritten = 0;
+ hTpEnc->writer.adif.samplingRate = hTpEnc->config.samplingRate;
+ hTpEnc->writer.adif.bitRate = hTpEnc->config.bitRate;
+ hTpEnc->writer.adif.profile = ((int)hTpEnc->config.aot) - 1;
+ hTpEnc->writer.adif.cm = hTpEnc->config.channelMode;
+ hTpEnc->writer.adif.bVariableRate = 0;
+ hTpEnc->writer.adif.instanceTag = 0;
+ hTpEnc->writer.adif.matrixMixdownA = hTpEnc->config.matrixMixdownA;
+ hTpEnc->writer.adif.pseudoSurroundEnable =
+ (hTpEnc->config.flags & CC_PSEUDO_SURROUND) ? 1 : 0;
+ break;
+
+ case TT_MP4_ADTS:
+ /* Sanity checks */
+ if ((hTpEnc->config.aot != AOT_AAC_LC) ||
+ (hTpEnc->config.samplesPerFrame != 1024)) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ if (adtsWrite_Init(&hTpEnc->writer.adts, &hTpEnc->config) != 0) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ break;
+
+ case TT_DABPLUS:
+ /* Sanity checks */
+ if ( ( hTpEnc->config.aot != AOT_AAC_LC)
+ ||(hTpEnc->config.samplesPerFrame != 960) )
+ {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ if ( dabWrite_Init(&hTpEnc->writer.dab, &hTpEnc->config) != 0) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ break;
+
+ case TT_MP4_LOAS:
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1: {
+ TRANSPORTENC_ERROR error;
+
+ error = transportEnc_Latm_Init(&hTpEnc->writer.latm, &hTpEnc->bitStream,
+ &hTpEnc->config, flags & TP_FLAG_LATM_AMV,
+ transportFmt, &hTpEnc->callbacks);
+ if (error != TRANSPORTENC_OK) {
+ return error;
+ }
+ } break;
+
+ case TT_MP4_RAW:
+ hTpEnc->writer.raw.curSubFrame = 0;
+ hTpEnc->writer.raw.nSubFrames = hTpEnc->config.nSubFrames;
+ break;
+
+ default:
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+
+ /* pceFrameCounter indicates if PCE must be written in raw_data_block. */
+ hTpEnc->pceFrameCounter = getPceRepetitionRate(
+ hTpEnc->config.channelMode, hTpEnc->config.channelConfigZero,
+ transportFmt, hTpEnc->config.headerPeriod, hTpEnc->config.matrixMixdownA);
+
+ return TRANSPORTENC_OK;
+}
+
+TRANSPORTENC_ERROR transportEnc_AddOtherDataBits(HANDLE_TRANSPORTENC hTpEnc,
+ const int nBits) {
+ TRANSPORTENC_ERROR tpErr = TRANSPORTENC_OK;
+
+ switch (hTpEnc->transportFmt) {
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ case TT_MP4_LOAS:
+ tpErr = transportEnc_LatmAddOtherDataBits(&hTpEnc->writer.latm, nBits);
+ break;
+ case TT_MP4_ADTS:
+ case TT_MP4_ADIF:
+ case TT_MP4_RAW:
+ default:
+ tpErr = TRANSPORTENC_UNKOWN_ERROR;
+ }
+
+ return tpErr;
+}
+
+HANDLE_FDK_BITSTREAM transportEnc_GetBitstream(HANDLE_TRANSPORTENC hTp) {
+ return &hTp->bitStream;
+}
+
+int transportEnc_RegisterSbrCallback(HANDLE_TRANSPORTENC hTpEnc,
+ const cbSbr_t cbSbr, void *user_data) {
+ if (hTpEnc == NULL) {
+ return -1;
+ }
+ hTpEnc->callbacks.cbSbr = cbSbr;
+ hTpEnc->callbacks.cbSbrData = user_data;
+ return 0;
+}
+int transportEnc_RegisterUsacCallback(HANDLE_TRANSPORTENC hTpEnc,
+ const cbUsac_t cbUsac, void *user_data) {
+ if (hTpEnc == NULL) {
+ return -1;
+ }
+ hTpEnc->callbacks.cbUsac = cbUsac;
+ hTpEnc->callbacks.cbUsacData = user_data;
+ return 0;
+}
+
+int transportEnc_RegisterSscCallback(HANDLE_TRANSPORTENC hTpEnc,
+ const cbSsc_t cbSsc, void *user_data) {
+ if (hTpEnc == NULL) {
+ return -1;
+ }
+ hTpEnc->callbacks.cbSsc = cbSsc;
+ hTpEnc->callbacks.cbSscData = user_data;
+ return 0;
+}
+
+TRANSPORTENC_ERROR transportEnc_WriteAccessUnit(HANDLE_TRANSPORTENC hTp,
+ INT frameUsedBits,
+ int bufferFullness, int ncc) {
+ TRANSPORTENC_ERROR err = TRANSPORTENC_OK;
+
+ if (!hTp) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ HANDLE_FDK_BITSTREAM hBs = &hTp->bitStream;
+
+ /* In case of writing PCE in raw_data_block frameUsedBits must be adapted. */
+ if (hTp->pceFrameCounter >= hTp->config.headerPeriod) {
+ frameUsedBits += transportEnc_GetPCEBits(
+ hTp->config.channelMode, hTp->config.matrixMixdownA,
+ 3); /* Consider 3 bits ID signalling in alignment */
+ }
+
+ switch (hTp->transportFmt) {
+ case TT_MP4_ADIF:
+ FDKinitBitStream(&hTp->bitStream, hTp->bsBuffer, hTp->bsBufferSize, 0,
+ BS_WRITER);
+ if (0 != adifWrite_EncodeHeader(&hTp->writer.adif, hBs, bufferFullness)) {
+ err = TRANSPORTENC_INVALID_CONFIG;
+ }
+ break;
+ case TT_MP4_ADTS:
+ bufferFullness /= ncc; /* Number of Considered Channels */
+ bufferFullness /= 32;
+ bufferFullness = FDKmin(0x7FF, bufferFullness); /* Signal variable rate */
+ adtsWrite_EncodeHeader(&hTp->writer.adts, &hTp->bitStream, bufferFullness,
+ frameUsedBits);
+ break;
+ case TT_DABPLUS:
+ bufferFullness /= ncc; /* Number of Considered Channels */
+ bufferFullness /= 32;
+ bufferFullness = FDKmin(0x7FF, bufferFullness); /* Signal variable rate */
+ dabWrite_EncodeHeader(
+ &hTp->writer.dab,
+ &hTp->bitStream,
+ bufferFullness,
+ frameUsedBits
+ );
+ break;
+ case TT_MP4_LOAS:
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ bufferFullness /= ncc; /* Number of Considered Channels */
+ bufferFullness /= 32;
+ bufferFullness = FDKmin(0xFF, bufferFullness); /* Signal variable rate */
+ transportEnc_LatmWrite(&hTp->writer.latm, hBs, frameUsedBits,
+ bufferFullness, &hTp->callbacks);
+ break;
+ case TT_MP4_RAW:
+ if (hTp->writer.raw.curSubFrame >= hTp->writer.raw.nSubFrames) {
+ hTp->writer.raw.curSubFrame = 0;
+ FDKinitBitStream(&hTp->bitStream, hTp->bsBuffer, hTp->bsBufferSize, 0,
+ BS_WRITER);
+ }
+ hTp->writer.raw.prevBits = FDKgetValidBits(hBs);
+ break;
+ default:
+ err = TRANSPORTENC_UNSUPPORTED_FORMAT;
+ break;
+ }
+
+ /* Write PCE in raw_data_block if required */
+ if (hTp->pceFrameCounter >= hTp->config.headerPeriod) {
+ INT crcIndex = 0;
+ /* Align inside PCE with repsect to the first bit of the raw_data_block() */
+ UINT alignAnchor = FDKgetValidBits(&hTp->bitStream);
+
+ /* Write PCE element ID bits */
+ FDKwriteBits(&hTp->bitStream, ID_PCE, 3);
+
+ if ((hTp->transportFmt == TT_MP4_ADTS) &&
+ !hTp->writer.adts.protection_absent) {
+ crcIndex = adtsWrite_CrcStartReg(&hTp->writer.adts, &hTp->bitStream, 0);
+ }
+
+ /* Write PCE as first raw_data_block element */
+ transportEnc_writePCE(
+ &hTp->bitStream, hTp->config.channelMode, hTp->config.samplingRate, 0,
+ 1, hTp->config.matrixMixdownA,
+ (hTp->config.flags & CC_PSEUDO_SURROUND) ? 1 : 0, alignAnchor);
+
+ if ((hTp->transportFmt == TT_MP4_ADTS) &&
+ !hTp->writer.adts.protection_absent) {
+ adtsWrite_CrcEndReg(&hTp->writer.adts, &hTp->bitStream, crcIndex);
+ }
+ hTp->pceFrameCounter = 0; /* reset pce frame counter */
+ }
+
+ if (hTp->pceFrameCounter != -1) {
+ hTp->pceFrameCounter++; /* Update pceFrameCounter only if PCE writing is
+ active. */
+ }
+
+ return err;
+}
+
+TRANSPORTENC_ERROR transportEnc_EndAccessUnit(HANDLE_TRANSPORTENC hTp,
+ int *bits) {
+ switch (hTp->transportFmt) {
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ case TT_MP4_LOAS:
+ transportEnc_LatmAdjustSubframeBits(&hTp->writer.latm, bits);
+ break;
+ case TT_MP4_ADTS:
+ adtsWrite_EndRawDataBlock(&hTp->writer.adts, &hTp->bitStream, bits);
+ break;
+ case TT_DABPLUS:
+ dabWrite_EndRawDataBlock(&hTp->writer.dab, &hTp->bitStream, bits);
+ break;
+ case TT_MP4_ADIF:
+ /* Substract ADIF header from AU bits, not to be considered. */
+ *bits -= adifWrite_GetHeaderBits(&hTp->writer.adif);
+ hTp->writer.adif.headerWritten = 1;
+ break;
+ case TT_MP4_RAW:
+ *bits -= hTp->writer.raw.prevBits;
+ break;
+ default:
+ break;
+ }
+
+ return TRANSPORTENC_OK;
+}
+
+TRANSPORTENC_ERROR transportEnc_GetFrame(HANDLE_TRANSPORTENC hTpEnc,
+ int *nbytes) {
+ TRANSPORTENC_ERROR tpErr = TRANSPORTENC_OK;
+ HANDLE_FDK_BITSTREAM hBs = &hTpEnc->bitStream;
+
+ switch (hTpEnc->transportFmt) {
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ case TT_MP4_LOAS:
+ *nbytes = hTpEnc->bsBufferSize;
+ tpErr = transportEnc_LatmGetFrame(&hTpEnc->writer.latm, hBs, nbytes);
+ break;
+ case TT_MP4_ADTS:
+ if (hTpEnc->writer.adts.currentBlock >=
+ hTpEnc->writer.adts.num_raw_blocks + 1) {
+ *nbytes = (FDKgetValidBits(hBs) + 7) >> 3;
+ hTpEnc->writer.adts.currentBlock = 0;
+ } else {
+ *nbytes = 0;
+ }
+ break;
+ case TT_DABPLUS:
+ if (hTpEnc->writer.dab.currentBlock >= hTpEnc->writer.dab.num_raw_blocks+1) {
+ *nbytes = (FDKgetValidBits(hBs) + 7)>>3;
+ hTpEnc->writer.dab.currentBlock = 0;
+ } else {
+ *nbytes = 0;
+ }
+ break;
+ case TT_MP4_ADIF:
+ FDK_ASSERT((INT)FDKgetValidBits(hBs) >= 0);
+ *nbytes = (FDKgetValidBits(hBs) + 7) >> 3;
+ break;
+ case TT_MP4_RAW:
+ FDKsyncCache(hBs);
+ hTpEnc->writer.raw.curSubFrame++;
+ *nbytes = ((FDKgetValidBits(hBs) - hTpEnc->writer.raw.prevBits) + 7) >> 3;
+ break;
+ default:
+ break;
+ }
+
+ return tpErr;
+}
+
+INT transportEnc_GetStaticBits(HANDLE_TRANSPORTENC hTp, int auBits) {
+ INT nbits = 0, nPceBits = 0;
+
+ /* Write PCE within raw_data_block in transport lib. */
+ if (hTp->pceFrameCounter >= hTp->config.headerPeriod) {
+ nPceBits = transportEnc_GetPCEBits(
+ hTp->config.channelMode, hTp->config.matrixMixdownA,
+ 3); /* Consider 3 bits ID signalling in alignment */
+ auBits += nPceBits; /* Adapt required raw_data_block bit consumtpion for AU
+ length information e.g. in LATM/LOAS configuration.
+ */
+ }
+
+ switch (hTp->transportFmt) {
+ case TT_MP4_ADIF:
+ case TT_MP4_RAW:
+ nbits = 0; /* Do not consider the ADIF header into the total bitrate */
+ break;
+ case TT_MP4_ADTS:
+ nbits = adtsWrite_GetHeaderBits(&hTp->writer.adts);
+ break;
+ case TT_DABPLUS:
+ nbits = dabWrite_CountTotalBitDemandHeader(&hTp->writer.dab, auBits);
+ break;
+ case TT_MP4_LOAS:
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ nbits =
+ transportEnc_LatmCountTotalBitDemandHeader(&hTp->writer.latm, auBits);
+ break;
+ default:
+ nbits = 0;
+ break;
+ }
+
+ /* PCE is written in the transport library therefore the bit consumption is
+ * part of the transport static bits. */
+ nbits += nPceBits;
+
+ return nbits;
+}
+
+void transportEnc_Close(HANDLE_TRANSPORTENC *phTp) {
+ if (phTp != NULL) {
+ if (*phTp != NULL) {
+ FreeRam_TransportEncoder(phTp);
+ }
+ }
+}
+
+int transportEnc_CrcStartReg(HANDLE_TRANSPORTENC hTpEnc, int mBits) {
+ int crcReg = 0;
+
+ switch (hTpEnc->transportFmt) {
+ case TT_MP4_ADTS:
+ crcReg = adtsWrite_CrcStartReg(&hTpEnc->writer.adts, &hTpEnc->bitStream,
+ mBits);
+ break;
+ case TT_DABPLUS:
+ crcReg = dabWrite_CrcStartReg(&hTpEnc->writer.dab, &hTpEnc->bitStream, mBits);
+ break;
+ default:
+ break;
+ }
+
+ return crcReg;
+}
+
+void transportEnc_CrcEndReg(HANDLE_TRANSPORTENC hTpEnc, int reg) {
+ switch (hTpEnc->transportFmt) {
+ case TT_MP4_ADTS:
+ adtsWrite_CrcEndReg(&hTpEnc->writer.adts, &hTpEnc->bitStream, reg);
+ break;
+ case TT_DABPLUS:
+ dabWrite_CrcEndReg(&hTpEnc->writer.dab, &hTpEnc->bitStream, reg);
+ break;
+ default:
+ break;
+ }
+}
+
+TRANSPORTENC_ERROR transportEnc_GetConf(HANDLE_TRANSPORTENC hTpEnc,
+ CODER_CONFIG *cc,
+ FDK_BITSTREAM *dataBuffer,
+ UINT *confType) {
+ TRANSPORTENC_ERROR tpErr = TRANSPORTENC_OK;
+ HANDLE_LATM_STREAM hLatmConfig = &hTpEnc->writer.latm;
+
+ *confType = 0; /* set confType variable to default */
+
+ /* write StreamMuxConfig or AudioSpecificConfig depending on format used */
+ switch (hTpEnc->transportFmt) {
+ case TT_MP4_LATM_MCP0:
+ case TT_MP4_LATM_MCP1:
+ case TT_MP4_LOAS:
+ tpErr =
+ CreateStreamMuxConfig(hLatmConfig, dataBuffer, 0, &hTpEnc->callbacks);
+ *confType = 1; /* config is SMC */
+ break;
+ default:
+ if (transportEnc_writeASC(dataBuffer, cc, &hTpEnc->callbacks) != 0) {
+ tpErr = TRANSPORTENC_UNKOWN_ERROR;
+ }
+ }
+
+ return tpErr;
+}
+
+TRANSPORTENC_ERROR transportEnc_GetLibInfo(LIB_INFO *info) {
+ int i;
+
+ if (info == NULL) {
+ return TRANSPORTENC_INVALID_PARAMETER;
+ }
+ /* search for next free tab */
+ for (i = 0; i < FDK_MODULE_LAST; i++) {
+ if (info[i].module_id == FDK_NONE) break;
+ }
+ if (i == FDK_MODULE_LAST) {
+ return TRANSPORTENC_UNKOWN_ERROR;
+ }
+ info += i;
+
+ info->module_id = FDK_TPENC;
+ info->version = LIB_VERSION(TP_LIB_VL0, TP_LIB_VL1, TP_LIB_VL2);
+ LIB_VERSION_STRING(info);
+#ifdef __ANDROID__
+ info->build_date = "";
+ info->build_time = "";
+#else
+ info->build_date = __DATE__;
+ info->build_time = __TIME__;
+#endif
+ info->title = TP_LIB_TITLE;
+
+ /* Set flags */
+ info->flags =
+ 0 | CAPF_ADIF | CAPF_ADTS | CAPF_LATM | CAPF_LOAS | CAPF_RAWPACKETS | CAPF_DAB_AAC;
+
+ return TRANSPORTENC_OK;
+}