Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / cinelerra / wavecache.h

diff --git a/cinelerra-5.1/cinelerra/wavecache.h b/cinelerra-5.1/cinelerra/wavecache.h
new file mode 100644 (file)
index 0000000..274d507
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/wavecache.h
@@ -0,0 +1,73 @@
+
+/*
+ * 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