+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#ifndef WAVECACHE_H
+#define WAVECACHE_H
+
+
+
+// Store audio waveform fragments for drawing.
+#include "cachebase.h"
+
+
+class WaveCacheItem : public CacheItemBase
+{
+public:
+ WaveCacheItem();
+ ~WaveCacheItem();
+
+ int get_size();
+
+ int channel;
+ int indexable_id;
+// End sample in asset samplerate. Starting point is CacheItemBase::position
+ int64_t end;
+ double high;
+ double low;
+};
+
+
+
+
+
+class WaveCache : public CacheBase
+{
+public:
+ WaveCache();
+ ~WaveCache();
+
+// Returns the first item on or after the start argument or 0 if none found.
+ WaveCacheItem* get_wave(int indexable_id,
+ int channel,
+ int64_t start,
+ int64_t end);
+// Put waveform segment into cache
+ void put_wave(Indexable *indexable,
+ int channel,
+ int64_t start,
+ int64_t end,
+ double high,
+ double low);
+};
+
+
+
+#endif