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authorMans Rullgard <mans@mansr.com>2011-03-21 18:07:59 +0000
committerMans Rullgard <mans@mansr.com>2011-04-03 19:01:53 +0100
commit79997def65fd2313b48a5f3c3a884c6149ae9b5d (patch)
treee137d4180c580bc28ada1bcb60a4aea66ac01729 /libavcodec/ac3enc_fixed.h
parentaadfc9ee747eeb37f9ea77c0cc56a88226b9d21b (diff)
downloadffmpeg-79997def65fd2313b48a5f3c3a884c6149ae9b5d.tar.gz
ac3enc: use generic fixed-point mdct
This makes the AC3 encoder use the shared fixed-point MDCT rather than its own implementation. The checksum changes are due to different rounding in the MDCT. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/ac3enc_fixed.h')
-rw-r--r--libavcodec/ac3enc_fixed.h61
1 files changed, 0 insertions, 61 deletions
diff --git a/libavcodec/ac3enc_fixed.h b/libavcodec/ac3enc_fixed.h
deleted file mode 100644
index 0c9e6a16c6..0000000000
--- a/libavcodec/ac3enc_fixed.h
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * The simplest AC-3 encoder
- * Copyright (c) 2000 Fabrice Bellard
- * Copyright (c) 2006-2010 Justin Ruggles <justin.ruggles@gmail.com>
- * Copyright (c) 2006-2010 Prakash Punnoor <prakash@punnoor.de>
- *
- * This file is part of Libav.
- *
- * Libav is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * fixed-point AC-3 encoder header.
- */
-
-#ifndef AVCODEC_AC3ENC_FIXED_H
-#define AVCODEC_AC3ENC_FIXED_H
-
-#include <stdint.h>
-
-
-typedef int16_t SampleType;
-typedef int32_t CoefType;
-typedef int64_t CoefSumType;
-
-#define MAC_COEF(d,a,b) MAC64(d,a,b)
-
-
-/**
- * Compex number.
- * Used in fixed-point MDCT calculation.
- */
-typedef struct IComplex {
- int16_t re,im;
-} IComplex;
-
-typedef struct AC3MDCTContext {
- const int16_t *window; ///< MDCT window function
- int nbits; ///< log2(transform size)
- int16_t *costab; ///< FFT cos table
- int16_t *sintab; ///< FFT sin table
- int16_t *xcos1; ///< MDCT cos table
- int16_t *xsin1; ///< MDCT sin table
- int16_t *rot_tmp; ///< temp buffer for pre-rotated samples
- IComplex *cplx_tmp; ///< temp buffer for complex pre-rotated samples
-} AC3MDCTContext;
-
-#endif /* AVCODEC_AC3ENC_FIXED_H */