mirror of https://github.com/FFmpeg/FFmpeg.git
Lynne
8 months ago
parent
2f90d83981
commit
e93793bf3c
7 changed files with 95 additions and 135 deletions
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/*
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* Copyright (c) 2013 |
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* MIPS Technologies, Inc., California. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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* |
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* AAC decoder fixed-point implementation |
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* |
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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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* |
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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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/**
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* @file |
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* AAC decoder |
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* @author Oded Shimon ( ods15 ods15 dyndns org ) |
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* @author Maxim Gavrilov ( maxim.gavrilov gmail com ) |
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* |
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* Fixed point implementation |
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* @author Stanislav Ocovaj ( stanislav.ocovaj imgtec com ) |
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*/ |
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#define USE_FIXED 1 |
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#include "libavutil/fixed_dsp.h" |
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#include "avcodec.h" |
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#include "codec_internal.h" |
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#include "get_bits.h" |
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#include "aac.h" |
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#include "aacdec.h" |
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#include "aactab.h" |
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#include "aac/aacdec_tab.h" |
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#include "adts_header.h" |
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#include "cbrt_data.h" |
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#include "aacsbr.h" |
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#include "mpeg4audio.h" |
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#include "profiles.h" |
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#include "libavutil/intfloat.h" |
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#include <math.h> |
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#include <string.h> |
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#include "aacdec_template.c" |
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const FFCodec ff_aac_fixed_decoder = { |
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.p.name = "aac_fixed", |
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CODEC_LONG_NAME("AAC (Advanced Audio Coding)"), |
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.p.type = AVMEDIA_TYPE_AUDIO, |
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.p.id = AV_CODEC_ID_AAC, |
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.p.priv_class = &ff_aac_decoder_class, |
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.priv_data_size = sizeof(AACDecContext), |
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.init = aac_decode_init, |
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.close = ff_aac_decode_close, |
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FF_CODEC_DECODE_CB(aac_decode_frame), |
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.p.sample_fmts = (const enum AVSampleFormat[]) { |
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AV_SAMPLE_FMT_S32P, AV_SAMPLE_FMT_NONE |
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}, |
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.p.capabilities = AV_CODEC_CAP_CHANNEL_CONF | AV_CODEC_CAP_DR1, |
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.caps_internal = FF_CODEC_CAP_INIT_CLEANUP, |
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.p.ch_layouts = ff_aac_ch_layout, |
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.p.profiles = NULL_IF_CONFIG_SMALL(ff_aac_profiles), |
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.flush = flush, |
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}; |
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