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72 lines
2.4 KiB
72 lines
2.4 KiB
10 months ago
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/*
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* Common parts of the AAC decoders
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* Copyright (c) 2005-2006 Oded Shimon ( ods15 ods15 dyndns org )
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* Copyright (c) 2006-2007 Maxim Gavrilov ( maxim.gavrilov gmail com )
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* Copyright (c) 2008-2013 Alex Converse <alex.converse@gmail.com>
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*
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* AAC LATM decoder
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* Copyright (c) 2008-2010 Paul Kendall <paul@kcbbs.gen.nz>
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* Copyright (c) 2010 Janne Grunau <janne-libav@jannau.net>
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*
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* AAC decoder fixed-point implementation
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* Copyright (c) 2013
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* MIPS Technologies, Inc., California.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavcodec/aacsbr.h"
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#include "libavcodec/aacdec.h"
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#include "libavcodec/avcodec.h"
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#include "libavutil/attributes.h"
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#include "libavutil/macros.h"
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#include "libavutil/mem.h"
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#include "libavutil/tx.h"
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av_cold int ff_aac_decode_close(AVCodecContext *avctx)
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{
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AACDecContext *ac = avctx->priv_data;
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int is_fixed = ac->is_fixed;
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void (*sbr_close)(ChannelElement *che) = is_fixed ? RENAME_FIXED(ff_aac_sbr_ctx_close)
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: ff_aac_sbr_ctx_close;
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for (int type = 0; type < FF_ARRAY_ELEMS(ac->che); type++) {
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for (int i = 0; i < MAX_ELEM_ID; i++) {
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if (ac->che[type][i]) {
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sbr_close(ac->che[type][i]);
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av_freep(&ac->che[type][i]);
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}
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}
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}
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av_tx_uninit(&ac->mdct120);
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av_tx_uninit(&ac->mdct128);
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av_tx_uninit(&ac->mdct480);
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av_tx_uninit(&ac->mdct512);
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av_tx_uninit(&ac->mdct960);
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av_tx_uninit(&ac->mdct1024);
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av_tx_uninit(&ac->mdct_ltp);
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// Compiler will optimize this branch away.
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if (is_fixed)
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av_freep(&ac->RENAME_FIXED(fdsp));
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else
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av_freep(&ac->fdsp);
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return 0;
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}
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