diff options
Diffstat (limited to 'libSBRenc/src/ps_main.h')
| -rw-r--r-- | libSBRenc/src/ps_main.h | 220 |
1 files changed, 134 insertions, 86 deletions
diff --git a/libSBRenc/src/ps_main.h b/libSBRenc/src/ps_main.h index b2fac92..4833fe0 100644 --- a/libSBRenc/src/ps_main.h +++ b/libSBRenc/src/ps_main.h @@ -30,74 +30,49 @@ /* Includes ******************************************************************/ #include "sbr_def.h" -#include "psenc_hybrid.h" +#include "qmf.h" #include "ps_encode.h" #include "FDK_bitstream.h" +#include "FDK_hybrid.h" + /* Data Types ****************************************************************/ typedef enum { PSENC_STEREO_BANDS_INVALID = 0, - PSENC_STEREO_BANDS_10 = 10, - PSENC_STEREO_BANDS_20 = 20, - PSENC_STEREO_BANDS_34 = 34 + PSENC_STEREO_BANDS_10 = 10, + PSENC_STEREO_BANDS_20 = 20 + } PSENC_STEREO_BANDS_CONFIG; typedef enum { - PSENC_NENV_1 = 1, - PSENC_NENV_2 = 2, - PSENC_NENV_4 = 4, - PSENC_NENV_DEFAULT = PSENC_NENV_2, - PSENC_NENV_MAX = PSENC_NENV_4 -} PSENC_NENV_CONFIG; + PSENC_NENV_1 = 1, + PSENC_NENV_2 = 2, + PSENC_NENV_4 = 4, + PSENC_NENV_DEFAULT = PSENC_NENV_2, + PSENC_NENV_MAX = PSENC_NENV_4 -#define MAX_PS_CHANNELS ( 2 ) -#define PSENC_QMF_BUFFER_LENGTH ( 48 ) +} PSENC_NENV_CONFIG; typedef struct { - - UINT bitrateFrom; /* inclusive */ - UINT bitrateTo; /* exclusive */ - PSENC_STEREO_BANDS_CONFIG nStereoBands; - PSENC_NENV_CONFIG nEnvelopes; - LONG iidQuantErrorThreshold; /* quantization threshold to switch between coarse and fine iid quantization */ + UINT bitrateFrom; /* inclusive */ + UINT bitrateTo; /* exclusive */ + PSENC_STEREO_BANDS_CONFIG nStereoBands; + PSENC_NENV_CONFIG nEnvelopes; + LONG iidQuantErrorThreshold; /* quantization threshold to switch between coarse and fine iid quantization */ } psTuningTable_t; /* Function / Class Declarations *********************************************/ -typedef struct T_PS_QMF_DATA -{ - FIXP_QMF *rQmfData[PSENC_QMF_BUFFER_LENGTH]; - FIXP_QMF *iQmfData[PSENC_QMF_BUFFER_LENGTH]; - INT nCols; - INT nRows; - INT bufferReadOffset; - INT bufferReadOffsetHybrid; - INT bufferWriteOffset; - INT bufferLength; -} PS_QMF_DATA, *HANDLE_PS_QMF_DATA; - -typedef struct T_PS_CHANNEL_DATA { - HANDLE_PS_QMF_DATA hPsQmfData; - - int psQmfScale; - HANDLE_PS_HYBRID_DATA hHybData; - HANDLE_PS_HYBRID hHybAna; - INT psChannelDelay; /* delay in samples */ -} PS_CHANNEL_DATA, *HANDLE_PS_CHANNEL_DATA; - typedef struct T_PARAMETRIC_STEREO { - - HANDLE_PS_HYBRID_CONFIG hHybridConfig; - HANDLE_PS_CHANNEL_DATA hPsChannelData[MAX_PS_CHANNELS]; HANDLE_PS_ENCODE hPsEncode; - HANDLE_PS_OUT hPsOut[2]; + PS_OUT psOut[2]; - FIXP_QMF *qmfDelayReal[QMF_MAX_TIME_SLOTS>>1]; - FIXP_QMF *qmfDelayImag[QMF_MAX_TIME_SLOTS>>1]; - FIXP_QMF *qmfDelayRealRef; - FIXP_QMF *qmfDelayImagRef; - int qmfDelayScale; + FIXP_DBL __staticHybridData[HYBRID_READ_OFFSET][MAX_PS_CHANNELS][2][MAX_HYBRID_BANDS]; + FIXP_DBL *pHybridData[HYBRID_READ_OFFSET+HYBRID_FRAMESIZE][MAX_PS_CHANNELS][2]; + + FIXP_QMF qmfDelayLines[2][QMF_MAX_TIME_SLOTS>>1][QMF_CHANNELS]; + int qmfDelayScale; INT psDelay; UINT maxEnvelopes; @@ -108,53 +83,126 @@ typedef struct T_PARAMETRIC_STEREO { INT noQmfSlots; INT noQmfBands; -} PARAMETRIC_STEREO; + FIXP_DBL __staticHybAnaStatesLF[MAX_PS_CHANNELS][2*HYBRID_FILTER_LENGTH*HYBRID_MAX_QMF_BANDS]; + FIXP_DBL __staticHybAnaStatesHF[MAX_PS_CHANNELS][2*HYBRID_FILTER_DELAY*(QMF_CHANNELS-HYBRID_MAX_QMF_BANDS)]; + FDK_ANA_HYB_FILTER fdkHybAnaFilter[MAX_PS_CHANNELS]; + FDK_SYN_HYB_FILTER fdkHybSynFilter; +} PARAMETRIC_STEREO; typedef struct T_PSENC_CONFIG { - - INT frameSize; - INT qmfFilterMode; - INT sbrPsDelay; - PSENC_STEREO_BANDS_CONFIG nStereoBands; - PSENC_NENV_CONFIG maxEnvelopes; - FIXP_DBL iidQuantErrorThreshold; + INT frameSize; + INT qmfFilterMode; + INT sbrPsDelay; + PSENC_STEREO_BANDS_CONFIG nStereoBands; + PSENC_NENV_CONFIG maxEnvelopes; + FIXP_DBL iidQuantErrorThreshold; } PSENC_CONFIG, *HANDLE_PSENC_CONFIG; typedef struct T_PARAMETRIC_STEREO *HANDLE_PARAMETRIC_STEREO; -HANDLE_ERROR_INFO -PSEnc_Create(HANDLE_PARAMETRIC_STEREO *phParametricStereo); - -HANDLE_ERROR_INFO -PSEnc_Init(HANDLE_PARAMETRIC_STEREO hParametricStereo, - HANDLE_PSENC_CONFIG hPsEncConfig, - INT noQmfSlots, - INT noQmfBands - ,UCHAR *dynamic_RAM - ); - -HANDLE_ERROR_INFO -UpdatePSQmfData_second(HANDLE_PARAMETRIC_STEREO hParametricStereo); - -HANDLE_ERROR_INFO -PSEnc_Destroy(HANDLE_PARAMETRIC_STEREO *hParametricStereo); - - -HANDLE_ERROR_INFO -FDKsbrEnc_PSEnc_ParametricStereoProcessing(HANDLE_PARAMETRIC_STEREO hParametricStereo, - FIXP_QMF **RESTRICT qmfRealData, - FIXP_QMF **RESTRICT qmfImagData, - INT qmfOffset, - INT_PCM *downsampledOutSignal, - HANDLE_QMF_FILTER_BANK sbrSynthQmf, - SCHAR *qmfScale, - const int sendHeader); - -INT -FDKsbrEnc_PSEnc_WritePSData(HANDLE_PARAMETRIC_STEREO hParametricStereo, HANDLE_FDK_BITSTREAM hBitstream); +/** + * \brief Create a parametric stereo encoder instance. + * + * \param phParametricStereo A pointer to a parametric stereo handle to be allocated. Initialized on return. + * + * \return + * - PSENC_OK, on succes. + * - PSENC_INVALID_HANDLE, PSENC_MEMORY_ERROR, on failure. + */ +FDK_PSENC_ERROR PSEnc_Create( + HANDLE_PARAMETRIC_STEREO *phParametricStereo + ); + + +/** + * \brief Initialize a parametric stereo encoder instance. + * + * \param hParametricStereo Meta Data handle. + * \param hPsEncConfig Filled parametric stereo configuration structure. + * \param noQmfSlots Number of slots within one audio frame. + * \param noQmfBands Number of QMF bands. + * \param dynamic_RAM Pointer to preallocated workbuffer. + * + * \return + * - PSENC_OK, on succes. + * - PSENC_INVALID_HANDLE, PSENC_INIT_ERROR, on failure. + */ +FDK_PSENC_ERROR PSEnc_Init( + HANDLE_PARAMETRIC_STEREO hParametricStereo, + const HANDLE_PSENC_CONFIG hPsEncConfig, + INT noQmfSlots, + INT noQmfBands + ,UCHAR *dynamic_RAM + ); + + +/** + * \brief Destroy parametric stereo encoder instance. + * + * Deallocate instance and free whole memory. + * + * \param phParametricStereo Pointer to the parametric stereo handle to be deallocated. + * + * \return + * - PSENC_OK, on succes. + * - PSENC_INVALID_HANDLE, on failure. + */ +FDK_PSENC_ERROR PSEnc_Destroy( + HANDLE_PARAMETRIC_STEREO *phParametricStereo + ); + + +/** + * \brief Apply parametric stereo processing. + * + * \param hParametricStereo Meta Data handle. + * \param samples Pointer to 2 channel audio input signal. + * \param timeInStride, Stride factor of input buffer. + * \param hQmfAnalysis, Pointer to QMF analysis filterbanks. + * \param downmixedRealQmfData Pointer to real QMF buffer to be written to. + * \param downmixedImagQmfData Pointer to imag QMF buffer to be written to. + * \param downsampledOutSignal Pointer to buffer where to write downmixed timesignal. + * \param sbrSynthQmf Pointer to QMF synthesis filterbank. + * \param qmfScale Return scaling factor of the qmf data. + * \param sendHeader Signal whether to write header data. + * + * \return + * - PSENC_OK, on succes. + * - PSENC_INVALID_HANDLE, PSENC_ENCODE_ERROR, on failure. + */ +FDK_PSENC_ERROR FDKsbrEnc_PSEnc_ParametricStereoProcessing( + HANDLE_PARAMETRIC_STEREO hParametricStereo, + INT_PCM *samples[2], + UINT timeInStride, + QMF_FILTER_BANK **hQmfAnalysis, + FIXP_QMF **RESTRICT downmixedRealQmfData, + FIXP_QMF **RESTRICT downmixedImagQmfData, + INT_PCM *downsampledOutSignal, + HANDLE_QMF_FILTER_BANK sbrSynthQmf, + SCHAR *qmfScale, + const int sendHeader + ); + + +/** + * \brief Write parametric stereo bitstream. + * + * Write ps_data() element to bitstream and return number of written bits. + * Returns number of written bits only, if hBitstream == NULL. + * + * \param hParametricStereo Meta Data handle. + * \param hBitstream Bitstream buffer handle. + * + * \return + * - number of written bits. + */ +INT FDKsbrEnc_PSEnc_WritePSData( + HANDLE_PARAMETRIC_STEREO hParametricStereo, + HANDLE_FDK_BITSTREAM hBitstream + ); #endif /* __INCLUDED_PS_MAIN_H */ |