From a84864deb7c36b88f104f3116552d52d1ce64045 Mon Sep 17 00:00:00 2001 From: Jean-Michel Trivi Date: Thu, 8 Aug 2013 18:25:28 -0700 Subject: SBR header period AAC encoder: Connect SBR and PS header repetition rate with AACENC_HEADER_PERIOD parameter of the encoder API. Bug 9428126 Change-Id: Ia1ab965de9eaa2ac229d0c395a337cbd4d20cba1 --- libAACenc/src/aacenc_lib.cpp | 7 +++++-- libSBRenc/include/sbr_encoder.h | 4 ++++ libSBRenc/src/ps_main.cpp | 2 ++ libSBRenc/src/sbr_encoder.cpp | 16 +++++++++++++--- 4 files changed, 24 insertions(+), 5 deletions(-) diff --git a/libAACenc/src/aacenc_lib.cpp b/libAACenc/src/aacenc_lib.cpp index 169400a..161ed1c 100644 --- a/libAACenc/src/aacenc_lib.cpp +++ b/libAACenc/src/aacenc_lib.cpp @@ -98,7 +98,7 @@ amm-info@iis.fraunhofer.de /* Encoder library info */ #define AACENCODER_LIB_VL0 3 #define AACENCODER_LIB_VL1 4 -#define AACENCODER_LIB_VL2 5 +#define AACENCODER_LIB_VL2 6 #define AACENCODER_LIB_TITLE "AAC Encoder" #define AACENCODER_LIB_BUILD_DATE __DATE__ #define AACENCODER_LIB_BUILD_TIME __TIME__ @@ -122,6 +122,8 @@ amm-info@iis.fraunhofer.de #define INPUTBUFFER_SIZE (1537+100+2048) +#define DEFAULT_HEADER_PERIOD_REPETITION_RATE 10 /*!< Default header repetition rate used in transport library and for SBR header. */ + //////////////////////////////////////////////////////////////////////////////////// /** * Flags to characterize encoder modules to be supported in present instance. @@ -335,7 +337,7 @@ void FDKaacEnc_MapConfig(CODER_CONFIG *cc, USER_PARAM *extCfg, HANDLE_AACENC_CON case TT_MP4_ADTS: case TT_MP4_LOAS: case TT_MP4_LATM_MCP1: - cc->headerPeriod = 10; + cc->headerPeriod = DEFAULT_HEADER_PERIOD_REPETITION_RATE; break; default: cc->headerPeriod = 0; @@ -876,6 +878,7 @@ static AACENC_ERROR aacEncInit(HANDLE_AACENCODER hAacEncoder, &hAacConfig->audioObjectType, &hAacEncoder->nDelay, (hAacConfig->audioObjectType == AOT_ER_AAC_ELD) ? 1 : TRANS_FAC, + (config->userTpHeaderPeriod!=0xFF) ? config->userTpHeaderPeriod : DEFAULT_HEADER_PERIOD_REPETITION_RATE, initFlag ); diff --git a/libSBRenc/include/sbr_encoder.h b/libSBRenc/include/sbr_encoder.h index 5bbc197..f8f2a5c 100644 --- a/libSBRenc/include/sbr_encoder.h +++ b/libSBRenc/include/sbr_encoder.h @@ -298,6 +298,9 @@ UINT sbrEncoder_LimitBitRate(UINT bitRate, UINT numChannels, UINT coreSampleRate * \param aot Input: Desired AOT. output AOT to be used after parameter checking. * \param delay Input: core encoder delay. Output: total delay because of SBR. * \param transformFactor The core encoder transform factor (blockswitching). + * \param headerPeriod Repetition rate of the SBR header: + * - (-1) means intern configuration. + * - (1-10) corresponds to header repetition rate in frames. * \return 0 on success, and non-zero if failed. */ INT sbrEncoder_Init( HANDLE_SBR_ENCODER hSbrEncoder, @@ -312,6 +315,7 @@ INT sbrEncoder_Init( HANDLE_SBR_ENCODER hSbrEncoder, AUDIO_OBJECT_TYPE *aot, int *delay, int transformFactor, + const int headerPeriod, ULONG statesInitFlag ); diff --git a/libSBRenc/src/ps_main.cpp b/libSBRenc/src/ps_main.cpp index 7e77a90..76b759a 100644 --- a/libSBRenc/src/ps_main.cpp +++ b/libSBRenc/src/ps_main.cpp @@ -227,6 +227,8 @@ FDK_PSENC_ERROR PSEnc_Init( /* clear bs buffer */ FDKmemclear(hParametricStereo->psOut, sizeof(hParametricStereo->psOut)); + hParametricStereo->psOut[0].enablePSHeader = 1; /* write ps header in first frame */ + /* clear scaling buffer */ FDKmemclear(hParametricStereo->dynBandScale, sizeof(UCHAR)*PS_MAX_BANDS); FDKmemclear(hParametricStereo->maxBandValue, sizeof(FIXP_QMF)*PS_MAX_BANDS); diff --git a/libSBRenc/src/sbr_encoder.cpp b/libSBRenc/src/sbr_encoder.cpp index ac0c869..d7ecae5 100644 --- a/libSBRenc/src/sbr_encoder.cpp +++ b/libSBRenc/src/sbr_encoder.cpp @@ -103,7 +103,7 @@ amm-info@iis.fraunhofer.de #define SBRENCODER_LIB_VL0 3 #define SBRENCODER_LIB_VL1 3 -#define SBRENCODER_LIB_VL2 1 +#define SBRENCODER_LIB_VL2 2 @@ -1462,6 +1462,7 @@ INT FDKsbrEnc_EnvInit ( AUDIO_OBJECT_TYPE aot, int nBitstrDelay, int nElement, + const int headerPeriod, ULONG statesInitFlag ,UCHAR *dynamic_RAM ) @@ -1521,9 +1522,16 @@ INT FDKsbrEnc_EnvInit ( hSbrElement->sbrBitstreamData.CountSendHeaderData = 0; if (params->SendHeaderDataTime > 0 ) { - hSbrElement->sbrBitstreamData.NrSendHeaderData = (INT)(params->SendHeaderDataTime * hSbrElement->sbrConfigData.sampleFreq + if (headerPeriod==-1) { + + hSbrElement->sbrBitstreamData.NrSendHeaderData = (INT)(params->SendHeaderDataTime * hSbrElement->sbrConfigData.sampleFreq / (1000 * hSbrElement->sbrConfigData.frameSize)); - hSbrElement->sbrBitstreamData.NrSendHeaderData = fixMax(hSbrElement->sbrBitstreamData.NrSendHeaderData,1); + hSbrElement->sbrBitstreamData.NrSendHeaderData = fixMax(hSbrElement->sbrBitstreamData.NrSendHeaderData,1); + } + else { + /* assure header period at least once per second */ + hSbrElement->sbrBitstreamData.NrSendHeaderData = fixMin(fixMax(headerPeriod,1),(hSbrElement->sbrConfigData.sampleFreq/hSbrElement->sbrConfigData.frameSize)); + } } else { hSbrElement->sbrBitstreamData.NrSendHeaderData = 0; @@ -1723,6 +1731,7 @@ INT sbrEncoder_Init( AUDIO_OBJECT_TYPE *aot, int *delay, int transformFactor, + const int headerPeriod, ULONG statesInitFlag ) { @@ -1962,6 +1971,7 @@ INT sbrEncoder_Init( *aot, nBitstrDelay, el, + headerPeriod, statesInitFlag ,hSbrEncoder->dynamicRam ); -- cgit v1.2.3