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