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70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/* GStreamer
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* Copyright (C) 2009 David A. Schleef <ds@schleef.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _GST_SMPTE_TIME_CODE_H_
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#define _GST_SMPTE_TIME_CODE_H_
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#include <gst/gst.h>
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G_BEGIN_DECLS
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typedef struct _GstSMPTETimeCode GstSMPTETimeCode;
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/**
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* GstSMPTETimeCode:
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* @GST_SMPTE_TIME_CODE_SYSTEM_30: 29.97 frame per second system (NTSC)
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* @GST_SMPTE_TIME_CODE_SYSTEM_25: 25 frame per second system (PAL)
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* @GST_SMPTE_TIME_CODE_SYSTEM_24: 24 frame per second system
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*
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* Enum value representing SMPTE Time Code system.
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*/
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typedef enum {
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GST_SMPTE_TIME_CODE_SYSTEM_30 = 0,
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GST_SMPTE_TIME_CODE_SYSTEM_25,
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GST_SMPTE_TIME_CODE_SYSTEM_24
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} GstSMPTETimeCodeSystem;
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struct _GstSMPTETimeCode {
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int hours;
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int minutes;
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int seconds;
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int frames;
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};
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#define GST_SMPTE_TIME_CODE_SYSTEM_IS_VALID(x) \
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((x) >= GST_SMPTE_TIME_CODE_SYSTEM_30 && (x) <= GST_SMPTE_TIME_CODE_SYSTEM_24)
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#define GST_SMPTE_TIME_CODE_FORMAT "02d:%02d:%02d:%02d"
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#define GST_SMPTE_TIME_CODE_ARGS(timecode) \
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(timecode)->hours, (timecode)->minutes, \
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(timecode)->seconds, (timecode)->frames
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gboolean gst_smpte_time_code_is_valid (GstSMPTETimeCodeSystem system,
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GstSMPTETimeCode *time_code);
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gboolean gst_smpte_time_code_from_frame_number (GstSMPTETimeCodeSystem system,
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GstSMPTETimeCode *time_code, int frame_number);
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gboolean gst_smpte_time_code_get_frame_number (GstSMPTETimeCodeSystem system,
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int *frame_number, GstSMPTETimeCode *time_code);
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GstClockTime gst_smpte_time_code_get_timestamp (GstSMPTETimeCodeSystem system,
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GstSMPTETimeCode *time_code);
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G_END_DECLS
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#endif
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