gstreamer/gst-libs/gst/rtsp/gstrtsprange.h
2017-05-16 15:22:45 +01:00

164 lines
4.9 KiB
C

/* GStreamer
* Copyright (C) <2005,2006> Wim Taymans <wim@fluendo.com>
*
* 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.
*/
/*
* Unless otherwise indicated, Source Code is licensed under MIT license.
* See further explanation attached in License Statement (distributed in the file
* LICENSE).
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __GST_RTSP_RANGE_H__
#define __GST_RTSP_RANGE_H__
#include <glib.h>
#include <gst/gst.h>
#include <gst/rtsp/gstrtspdefs.h>
G_BEGIN_DECLS
/**
* GstRTSPRangeUnit:
* @GST_RTSP_RANGE_SMPTE: SMPTE timecode
* @GST_RTSP_RANGE_SMPTE_30_DROP: 29.97 frames per second
* @GST_RTSP_RANGE_SMPTE_25: 25 frames per second
* @GST_RTSP_RANGE_NPT: Normal play time
* @GST_RTSP_RANGE_CLOCK: Absolute time expressed as ISO 8601 timestamps
*
* Different possible time range units.
*/
typedef enum
{
GST_RTSP_RANGE_SMPTE,
GST_RTSP_RANGE_SMPTE_30_DROP,
GST_RTSP_RANGE_SMPTE_25,
GST_RTSP_RANGE_NPT,
GST_RTSP_RANGE_CLOCK
} GstRTSPRangeUnit;
typedef struct _GstRTSPTimeRange GstRTSPTimeRange;
typedef struct _GstRTSPTime GstRTSPTime;
typedef struct _GstRTSPTime2 GstRTSPTime2;
/**
* GstRTSPTimeType:
* @GST_RTSP_TIME_SECONDS: seconds
* @GST_RTSP_TIME_NOW: now
* @GST_RTSP_TIME_END: end
* @GST_RTSP_TIME_FRAMES: frames and subframes
* @GST_RTSP_TIME_UTC: UTC time
*
* Possible time types.
*/
typedef enum {
GST_RTSP_TIME_SECONDS,
GST_RTSP_TIME_NOW,
GST_RTSP_TIME_END,
GST_RTSP_TIME_FRAMES,
GST_RTSP_TIME_UTC
} GstRTSPTimeType;
/**
* GstRTSPTime:
* @type: the time of the time
* @seconds: seconds when @type is GST_RTSP_TIME_SECONDS,
* GST_RTSP_TIME_UTC and GST_RTSP_TIME_FRAMES
*
* A time indication.
*/
struct _GstRTSPTime {
GstRTSPTimeType type;
gdouble seconds;
};
/**
* GstRTSPTime2:
* @frames: frames and subframes when type in GstRTSPTime is
* GST_RTSP_TIME_FRAMES
* @year: year when type is GST_RTSP_TIME_UTC
* @month: month when type is GST_RTSP_TIME_UTC
* @day: day when type is GST_RTSP_TIME_UTC
*
* Extra fields for a time indication.
*
* Since: 1.2
*/
struct _GstRTSPTime2 {
gdouble frames;
guint year;
guint month;
guint day;
};
/**
* GstRTSPTimeRange:
* @unit: the time units used
* @min: the minimum interval
* @max: the maximum interval
* @min2: extra fields in the minimum interval (Since: 1.2)
* @max2: extra fields in the maximum interval (Since: 1.2)
*
* A time range.
*/
struct _GstRTSPTimeRange {
GstRTSPRangeUnit unit;
GstRTSPTime min;
GstRTSPTime max;
GstRTSPTime2 min2;
GstRTSPTime2 max2;
};
GST_EXPORT
GstRTSPResult gst_rtsp_range_parse (const gchar *rangestr, GstRTSPTimeRange **range);
GST_EXPORT
gchar * gst_rtsp_range_to_string (const GstRTSPTimeRange *range);
GST_EXPORT
void gst_rtsp_range_free (GstRTSPTimeRange *range);
GST_EXPORT
gboolean gst_rtsp_range_get_times (const GstRTSPTimeRange *range,
GstClockTime *min, GstClockTime *max);
GST_EXPORT
gboolean gst_rtsp_range_convert_units (GstRTSPTimeRange * range,
GstRTSPRangeUnit unit);
G_END_DECLS
#endif /* __GST_RTSP_RANGE_H__ */