sm64pc/tools/audiofile-0.3.6/libaudiofile/Marker.cpp

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2020-05-07 18:21:22 +00:00
/*
Audio File Library
Copyright (C) 1998-2000, Michael Pruett <michael@68k.org>
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
*/
/*
Marker.cpp
This file contains routines for dealing with loop markers.
*/
#include "config.h"
#include "Marker.h"
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include "FileHandle.h"
#include "Setup.h"
#include "Track.h"
#include "afinternal.h"
#include "audiofile.h"
#include "util.h"
void afInitMarkIDs(AFfilesetup setup, int trackid, const int *markids, int nmarks)
{
if (!_af_filesetup_ok(setup))
return;
TrackSetup *track = setup->getTrack(trackid);
if (!track)
return;
if (track->markers != NULL)
{
for (int i=0; i<track->markerCount; i++)
{
if (track->markers[i].name != NULL)
free(track->markers[i].name);
if (track->markers[i].comment != NULL)
free(track->markers[i].comment);
}
free(track->markers);
}
track->markers = (MarkerSetup *) _af_calloc(nmarks, sizeof (struct MarkerSetup));
track->markerCount = nmarks;
for (int i=0; i<nmarks; i++)
{
track->markers[i].id = markids[i];
track->markers[i].name = _af_strdup("");
track->markers[i].comment = _af_strdup("");
}
track->markersSet = true;
}
void afInitMarkName(AFfilesetup setup, int trackid, int markid,
const char *namestr)
{
int markno;
int length;
if (!_af_filesetup_ok(setup))
return;
TrackSetup *track = setup->getTrack(trackid);
if (!track)
return;
for (markno=0; markno<track->markerCount; markno++)
{
if (track->markers[markno].id == markid)
break;
}
if (markno == track->markerCount)
{
_af_error(AF_BAD_MARKID, "no marker id %d for file setup", markid);
return;
}
length = strlen(namestr);
if (length > 255)
{
_af_error(AF_BAD_STRLEN,
"warning: marker name truncated to 255 characters");
length = 255;
}
if (track->markers[markno].name)
free(track->markers[markno].name);
if ((track->markers[markno].name = (char *) _af_malloc(length+1)) == NULL)
return;
strncpy(track->markers[markno].name, namestr, length);
/*
The null terminator is not set by strncpy if
strlen(namestr) > length. Set it here.
*/
track->markers[markno].name[length] = '\0';
}
void afInitMarkComment(AFfilesetup setup, int trackid, int markid,
const char *commstr)
{
int markno;
int length;
if (!_af_filesetup_ok(setup))
return;
TrackSetup *track = setup->getTrack(trackid);
if (!track)
return;
for (markno=0; markno<track->markerCount; markno++)
{
if (track->markers[markno].id == markid)
break;
}
if (markno == track->markerCount)
{
_af_error(AF_BAD_MARKID, "no marker id %d for file setup", markid);
return;
}
length = strlen(commstr);
if (track->markers[markno].comment)
free(track->markers[markno].comment);
if ((track->markers[markno].comment = (char *) _af_malloc(length+1)) == NULL)
return;
strcpy(track->markers[markno].comment, commstr);
}
char *afGetMarkName (AFfilehandle file, int trackid, int markid)
{
if (!_af_filehandle_ok(file))
return NULL;
Track *track = file->getTrack(trackid);
if (!track)
return NULL;
Marker *marker = track->getMarker(markid);
if (!marker)
return NULL;
return marker->name;
}
char *afGetMarkComment (AFfilehandle file, int trackid, int markid)
{
if (!_af_filehandle_ok(file))
return NULL;
Track *track = file->getTrack(trackid);
if (!track)
return NULL;
Marker *marker = track->getMarker(markid);
if (!marker)
return NULL;
return marker->comment;
}
void afSetMarkPosition (AFfilehandle file, int trackid, int markid,
AFframecount position)
{
if (!_af_filehandle_ok(file))
return;
if (!file->checkCanWrite())
return;
Track *track = file->getTrack(trackid);
if (!track)
return;
Marker *marker = track->getMarker(markid);
if (!marker)
return;
if (position < 0)
{
_af_error(AF_BAD_MARKPOS, "invalid marker position %jd",
static_cast<intmax_t>(position));
position = 0;
}
marker->position = position;
}
int afGetMarkIDs (AFfilehandle file, int trackid, int markids[])
{
if (!_af_filehandle_ok(file))
return -1;
Track *track = file->getTrack(trackid);
if (!track)
return -1;
if (markids != NULL)
{
for (int i=0; i<track->markerCount; i++)
{
markids[i] = track->markers[i].id;
}
}
return track->markerCount;
}
AFframecount afGetMarkPosition (AFfilehandle file, int trackid, int markid)
{
if (!_af_filehandle_ok(file))
return 0L;
Track *track = file->getTrack(trackid);
if (!track)
return 0L;
Marker *marker = track->getMarker(markid);
if (!marker)
return 0L;
return marker->position;
}
Marker *_af_marker_new (int count)
{
Marker *markers = (Marker *) _af_calloc(count, sizeof (Marker));
if (markers == NULL)
return NULL;
return markers;
}