summaryrefslogtreecommitdiffstats
path: root/libSBRenc/src/psenc_hybrid.h
diff options
context:
space:
mode:
authorDave Burke <daveburke@google.com>2012-04-17 09:51:45 -0700
committerDave Burke <daveburke@google.com>2012-04-17 23:04:43 -0700
commit9bf37cc9712506b2483650c82d3c41152337ef7e (patch)
tree77db44e2bae06e3d144b255628be2b7a55c581d3 /libSBRenc/src/psenc_hybrid.h
parenta37315fe10ee143d6d0b28c19d41a476a23e63ea (diff)
downloadODR-AudioEnc-9bf37cc9712506b2483650c82d3c41152337ef7e.tar.gz
ODR-AudioEnc-9bf37cc9712506b2483650c82d3c41152337ef7e.tar.bz2
ODR-AudioEnc-9bf37cc9712506b2483650c82d3c41152337ef7e.zip
Fraunhofer AAC codec.
License boilerplate update to follow. Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5
Diffstat (limited to 'libSBRenc/src/psenc_hybrid.h')
-rw-r--r--libSBRenc/src/psenc_hybrid.h182
1 files changed, 182 insertions, 0 deletions
diff --git a/libSBRenc/src/psenc_hybrid.h b/libSBRenc/src/psenc_hybrid.h
new file mode 100644
index 0000000..79e600d
--- /dev/null
+++ b/libSBRenc/src/psenc_hybrid.h
@@ -0,0 +1,182 @@
+/***************************** MPEG Audio Encoder ***************************
+
+ (C) Copyright Fraunhofer IIS (2004-2005)
+ All Rights Reserved
+
+ Please be advised that this software and/or program delivery is
+ Confidential Information of Fraunhofer and subject to and covered by the
+
+ Fraunhofer IIS Software Evaluation Agreement
+ between Google Inc. and Fraunhofer
+ effective and in full force since March 1, 2012.
+
+ You may use this software and/or program only under the terms and
+ conditions described in the above mentioned Fraunhofer IIS Software
+ Evaluation Agreement. Any other and/or further use requires a separate agreement.
+
+
+ $Id$
+ Initial author: M. Neuendorf, M. Multrus
+ contents/description: hypbrid filter bank (prototypes)
+
+ This software and/or program is protected by copyright law and international
+ treaties. Any reproduction or distribution of this software and/or program,
+ or any portion of it, may result in severe civil and criminal penalties, and
+ will be prosecuted to the maximum extent possible under law.
+
+******************************************************************************/
+#ifndef __hybrid_h
+#define __hybrid_h
+
+/* Includes ******************************************************************/
+#include "sbr_def.h"
+#include "ps_const.h"
+
+#include "qmf.h"
+
+/* Data Types ****************************************************************/
+
+typedef enum {
+ HYBRID_2_REAL = 2,
+ HYBRID_4_CPLX = 4,
+ HYBRID_6_CPLX = 6,
+ HYBRID_8_CPLX = 8,
+ HYBRID_12_CPLX = 12
+} HYBRID_RES;
+
+#define MAX_HYBRID_RES (HYBRID_12_CPLX)
+
+/* Defines *******************************************************************/
+#define MAX_QMF_BANDS_IN_HYBRID (5)
+#define MAX_IID_GROUPS (50) /* NO_IID_GROUPS_HI_RES */
+
+#define HYBRID_FILTER_LENGTH ( 13 )
+
+#define HYBRID_FRAMESIZE ( QMF_MAX_TIME_SLOTS )
+#define HYBRID_WRITEOFFSET ( 10 )
+#define HYBRID_NUM_BANDS ( 10 )
+
+#define NO_QMF_BANDS_HYBRID_10 ( 3 )
+#define NO_QMF_BANDS_HYBRID_20 ( 3 )
+#define HYBRID_MAX_QMF_BANDS ( NO_QMF_BANDS_HYBRID_20 )
+
+#define QMF_BUFFER_MOVE ( HYBRID_FILTER_LENGTH - 1 )
+
+
+/* Data Types ****************************************************************/
+typedef struct PS_HYBRID_CONFIG_tag {
+ PS_BANDS mode;
+
+ UINT noQmfBandsInHybrid;
+ INT aHybridResolution[MAX_QMF_BANDS_IN_HYBRID]; /* valid entries from 0 to noQmfBandsInHybrid */
+
+} PS_HYBRID_CONFIG, *HANDLE_PS_HYBRID_CONFIG;
+
+typedef struct PS_HYBRID_tag
+{
+ PS_BANDS mode;
+ INT nQmfBands;
+ INT frameSizeInit;
+ INT frameSize;
+ INT pResolution[HYBRID_MAX_QMF_BANDS];
+ INT qmfBufferMove;
+ INT hybridFilterDelay;
+
+ FIXP_DBL *fft;
+
+ FIXP_QMF *pWorkReal; /**< Working arrays for Qmf samples. */
+ FIXP_QMF *pWorkImag;
+
+ FIXP_QMF mQmfBufferReal[HYBRID_MAX_QMF_BANDS][QMF_BUFFER_MOVE]; /**< Stores old Qmf samples. */
+ FIXP_QMF mQmfBufferImag[HYBRID_MAX_QMF_BANDS][QMF_BUFFER_MOVE];
+ FIXP_QMF *mTempReal[HYBRID_FRAMESIZE]; /**< Temporary matrices for filter bank output. */
+ FIXP_QMF *mTempImag[HYBRID_FRAMESIZE];
+
+} PS_HYBRID;
+
+typedef struct PS_HYBRID_DATA_tag {
+ INT frameSize;
+ INT nHybridBands;
+ INT nHybridQmfBands;
+ INT nHybridResolution [HYBRID_MAX_QMF_BANDS];
+
+ FIXP_QMF* rHybData [(HYBRID_FRAMESIZE + HYBRID_WRITEOFFSET)];
+ FIXP_QMF* iHybData [(HYBRID_FRAMESIZE + HYBRID_WRITEOFFSET)];
+ SCHAR sf_fixpHybrid;
+
+ INT hybDataReadOffset;
+ INT hybDataWriteOffset;
+
+} PS_HYBRID_DATA;
+
+
+typedef struct PS_HYBRID_DATA_tag *HANDLE_PS_HYBRID_DATA;
+typedef struct PS_HYBRID_tag *HANDLE_PS_HYBRID;
+
+
+
+/* Function Declarations *********************************************/
+
+/*****************************************************************************/
+/* **** FILTERBANK CONFIG **** */
+
+HANDLE_ERROR_INFO FDKsbrEnc_CreateHybridConfig(HANDLE_PS_HYBRID_CONFIG *phHybConfig,
+ PS_BANDS mode);
+
+/*****************************************************************************/
+/* **** FILTERBANK DATA **** */
+
+HANDLE_ERROR_INFO FDKsbrEnc_CreateHybridData(HANDLE_PS_HYBRID_DATA *phHybData,
+ INT ch);
+
+HANDLE_ERROR_INFO FDKsbrEnc_InitHybridData(HANDLE_PS_HYBRID_DATA hHybData,
+ HANDLE_PS_HYBRID_CONFIG hHybConfig,
+ INT frameSize);
+
+HANDLE_ERROR_INFO FDKsbrEnc_DestroyHybridData(HANDLE_PS_HYBRID_DATA* phHybData);
+
+inline INT FDKsbrEnc_GetHybridFrameSize(HANDLE_PS_HYBRID_DATA h) {
+ return h->frameSize;
+}
+
+inline INT FDKsbrEnc_GetNumberHybridBands(HANDLE_PS_HYBRID_DATA h) {
+ return h->nHybridBands;
+}
+
+inline INT FDKsbrEnc_GetNumberHybridQmfBands(HANDLE_PS_HYBRID_DATA h) {
+ return h->nHybridQmfBands;
+}
+
+INT FDKsbrEnc_GetHybridResolution(HANDLE_PS_HYBRID_DATA h, INT qmfBand);
+
+
+
+/*****************************************************************************/
+/* **** FILTERBANK **** */
+
+HANDLE_ERROR_INFO
+FDKsbrEnc_CreateHybridFilterBank ( HANDLE_PS_HYBRID *phHybrid,
+ INT ch );
+
+HANDLE_ERROR_INFO
+FDKsbrEnc_InitHybridFilterBank ( HANDLE_PS_HYBRID hHybrid,
+ HANDLE_PS_HYBRID_CONFIG hHybConfig,
+ INT frameSize );
+
+HANDLE_ERROR_INFO
+FDKsbrEnc_DeleteHybridFilterBank ( HANDLE_PS_HYBRID* phHybrid );
+
+HANDLE_ERROR_INFO
+HybridAnalysis ( HANDLE_PS_HYBRID hHybrid,
+ FIXP_QMF *const * const mQmfReal,
+ FIXP_QMF *const * const mQmfImag,
+ SCHAR sf_fixpQmf,
+ FIXP_QMF **mHybridReal,
+ FIXP_QMF **mHybridImag,
+ SCHAR *sf_fixpHybrid);
+
+
+INT
+FDKsbrEnc_GetHybridFilterDelay(HANDLE_PS_HYBRID hHybrid);
+
+#endif /*__hybrid_h*/