gstreamer/ext/dv/gstsmptetimecode.h
2010-09-04 12:39:25 -07:00

70 lines
2.3 KiB
C

/* GStreamer
* Copyright (C) 2009 David A. Schleef <ds@schleef.org>
*
* 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 _GST_SMPTE_TIME_CODE_H_
#define _GST_SMPTE_TIME_CODE_H_
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstSMPTETimeCode GstSMPTETimeCode;
/**
* GstSMPTETimeCode:
* @GST_SMPTE_TIME_CODE_SYSTEM_30: 29.97 frame per second system (NTSC)
* @GST_SMPTE_TIME_CODE_SYSTEM_25: 25 frame per second system (PAL)
* @GST_SMPTE_TIME_CODE_SYSTEM_24: 24 frame per second system
*
* Enum value representing SMPTE Time Code system.
*/
typedef enum {
GST_SMPTE_TIME_CODE_SYSTEM_30 = 0,
GST_SMPTE_TIME_CODE_SYSTEM_25,
GST_SMPTE_TIME_CODE_SYSTEM_24
} GstSMPTETimeCodeSystem;
struct _GstSMPTETimeCode {
int hours;
int minutes;
int seconds;
int frames;
};
#define GST_SMPTE_TIME_CODE_SYSTEM_IS_VALID(x) \
((x) >= GST_SMPTE_TIME_CODE_SYSTEM_30 && (x) <= GST_SMPTE_TIME_CODE_SYSTEM_24)
#define GST_SMPTE_TIME_CODE_FORMAT "02d:%02d:%02d:%02d"
#define GST_SMPTE_TIME_CODE_ARGS(timecode) \
(timecode)->hours, (timecode)->minutes, \
(timecode)->seconds, (timecode)->frames
gboolean gst_smpte_time_code_is_valid (GstSMPTETimeCodeSystem system,
GstSMPTETimeCode *time_code);
gboolean gst_smpte_time_code_from_frame_number (GstSMPTETimeCodeSystem system,
GstSMPTETimeCode *time_code, int frame_number);
gboolean gst_smpte_time_code_get_frame_number (GstSMPTETimeCodeSystem system,
int *frame_number, GstSMPTETimeCode *time_code);
GstClockTime gst_smpte_time_code_get_timestamp (GstSMPTETimeCodeSystem system,
GstSMPTETimeCode *time_code);
G_END_DECLS
#endif