gstreamer/sys/dxr3/dxr3common.h

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/* GStreamer
* Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net>
*
* dxr3videosink.h: Common declarations for the DXR3 plugin.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __DXR3COMMON_H__
#define __DXR3COMMON_H__
/* Convert from GStreamer time to MPEG time. */
#define GSTTIME_TO_MPEGTIME(time) (((time) * 9) / (GST_MSECOND/10))
/* The em8300 driver expresses time in units of 1/45000 of second. */
/* Convert from MPEG time to em8300 time. */
#define MPEGTIME_TO_DXRTIME(time) ((guint32) ((time) >> 1))
/* Convert from em8300 time to GStreamer time. */
#define DXRTIME_TO_GSTTIME(time) \
((GstClockTime) ((double) (time) * (((double) GST_MSECOND) / 45.0)))
#endif /* __DXR3COMMON_H__ */