/* 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, 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