forked from osmocom/wireshark
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
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/* mpeg-audio.c
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*
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* MPEG Audio header dissection
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* Written by Shaun Jackman <sjackman@gmail.com>
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* Copyright 2007 Shaun Jackman
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*
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* $Id$
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*
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* Wiretap Library
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "mpeg-audio.h"
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const int mpa_versions[4] = { 2, -1, 1, 0 };
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const int mpa_layers[4] = { -1, 2, 1, 0 };
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const unsigned mpa_samples[3][3] = {
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{ 384, 1152, 1152 },
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{ 384, 1152, 576 },
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{ 384, 1152, 576 },
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};
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const unsigned mpa_bitrates[3][3][16] = { /* kb/s */
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{
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{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448 },
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{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384 },
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{ 0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320 },
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},
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{
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{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256 },
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{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 },
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{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 },
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},
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{
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{ 0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256 },
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{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 },
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{ 0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160 },
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},
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};
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const unsigned mpa_frequencies[3][4] = {
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{ 44100, 48000, 32000 },
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{ 22050, 24000, 16000 },
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{ 11025, 12000, 8000 },
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};
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const unsigned mpa_padding[3] = { 4, 1, 1 };
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