109 lines
2.2 KiB
C++
109 lines
2.2 KiB
C++
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/*
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Audio File Library
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Copyright (C) 1998-1999, Michael Pruett <michael@68k.org>
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Copyright (C) 2000, Silicon Graphics, Inc.
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This library 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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This library 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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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301 USA
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*/
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/*
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aes.c
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This file contains routines for dealing with AES recording data.
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*/
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#include "config.h"
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#include <string.h>
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#include <assert.h>
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#include "FileHandle.h"
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#include "Setup.h"
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#include "Track.h"
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#include "afinternal.h"
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#include "audiofile.h"
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#include "util.h"
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void afInitAESChannelData (AFfilesetup setup, int trackid)
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{
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if (!_af_filesetup_ok(setup))
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return;
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TrackSetup *track = setup->getTrack(trackid);
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if (!track)
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return;
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track->aesDataSet = true;
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}
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void afInitAESChannelDataTo (AFfilesetup setup, int trackid, int willBeData)
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{
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if (!_af_filesetup_ok(setup))
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return;
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TrackSetup *track = setup->getTrack(trackid);
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if (!track)
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return;
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track->aesDataSet = willBeData;
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}
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int afGetAESChannelData (AFfilehandle file, int trackid, unsigned char buf[24])
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{
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if (!_af_filehandle_ok(file))
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return -1;
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Track *track = file->getTrack(trackid);
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if (!track)
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return -1;
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if (!track->hasAESData)
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{
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if (buf)
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memset(buf, 0, 24);
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return 0;
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}
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if (buf)
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memcpy(buf, track->aesData, 24);
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return 1;
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}
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void afSetAESChannelData (AFfilehandle file, int trackid, unsigned char buf[24])
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{
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if (!_af_filehandle_ok(file))
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return;
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Track *track = file->getTrack(trackid);
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if (!track)
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return;
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if (!file->checkCanWrite())
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return;
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if (track->hasAESData)
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{
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memcpy(track->aesData, buf, 24);
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}
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else
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{
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_af_error(AF_BAD_NOAESDATA,
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"unable to store AES channel status data for track %d",
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trackid);
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}
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}
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