From 3a0a695565d1d360f9a82173469c8ef858bc08a0 Mon Sep 17 00:00:00 2001 From: Jean-Michel Trivi Date: Tue, 27 Aug 2013 15:57:28 -0700 Subject: FDK update for downsampled SBR Add missing support for downsampled SBR in libFDK Bug 9428126 Change-Id: Idb732f8d31a115d36dd4b22916599db7fab98cae --- libFDK/include/FDK_tools_rom.h | 3 +++ libFDK/include/qmf.h | 2 ++ 2 files changed, 5 insertions(+) (limited to 'libFDK/include') diff --git a/libFDK/include/FDK_tools_rom.h b/libFDK/include/FDK_tools_rom.h index 2079c5b..9361c81 100644 --- a/libFDK/include/FDK_tools_rom.h +++ b/libFDK/include/FDK_tools_rom.h @@ -171,6 +171,9 @@ extern const FIXP_WTP sin_twiddle_L64[]; extern const FIXP_QTW qmf_phaseshift_cos32[32]; extern const FIXP_QTW qmf_phaseshift_sin32[32]; +/* Adapted analysis post-twiddles for down-sampled HQ SBR */ +extern const FIXP_QTW qmf_phaseshift_cos_downsamp32[32]; +extern const FIXP_QTW qmf_phaseshift_sin_downsamp32[32]; extern const FIXP_QTW qmf_phaseshift_cos64[64]; extern const FIXP_QTW qmf_phaseshift_sin64[64]; diff --git a/libFDK/include/qmf.h b/libFDK/include/qmf.h index 8777960..be69477 100644 --- a/libFDK/include/qmf.h +++ b/libFDK/include/qmf.h @@ -137,6 +137,8 @@ amm-info@iis.fraunhofer.de #define QMF_FLAG_MPSLDFB 16 /* Complex Low Delay Filter Bank used in MPEG Surround Encoder allows a optimized calculation of the modulation in qmfForwardModulationHQ() */ #define QMF_FLAG_MPSLDFB_OPTIMIZE_MODULATION 32 +/* Flag to indicate HE-AAC down-sampled SBR mode (decoder) -> adapt analysis post twiddling */ +#define QMF_FLAG_DOWNSAMPLED 64 typedef struct -- cgit v1.2.3