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ae429de8f6
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
244 lines
9.5 KiB
C
244 lines
9.5 KiB
C
/* GStreamer
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* Copyright (C) <2016> Vivia Nikolaidou <vivia@toolsonair.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_TIME_CODE_H__
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#define __GST_VIDEO_TIME_CODE_H__
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#include <gst/gst.h>
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#include <gst/video/video-prelude.h>
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G_BEGIN_DECLS
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typedef struct _GstVideoTimeCodeConfig GstVideoTimeCodeConfig;
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typedef struct _GstVideoTimeCode GstVideoTimeCode;
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typedef struct _GstVideoTimeCodeInterval GstVideoTimeCodeInterval;
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/**
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* GstVideoTimeCodeFlags:
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* @GST_VIDEO_TIME_CODE_FLAGS_NONE: No flags
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* @GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME: Whether we have drop frame rate
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* @GST_VIDEO_TIME_CODE_FLAGS_INTERLACED: Whether we have interlaced video
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*
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* Flags related to the time code information.
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* For drop frame, only 30000/1001 and 60000/1001 frame rates are supported.
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*
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* Since: 1.10
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*/
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typedef enum
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{
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GST_VIDEO_TIME_CODE_FLAGS_NONE = 0,
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GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME = (1<<0),
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GST_VIDEO_TIME_CODE_FLAGS_INTERLACED = (1<<1)
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/* Not supported yet:
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* GST_VIDEO_TIME_CODE_ALLOW_MORE_THAN_24H = (1<<2)
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* GST_VIDEO_TIME_CODE_ALLOW_NEGATIVE = (1<<3)
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*/
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} GstVideoTimeCodeFlags;
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/**
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* GstVideoTimeCodeConfig:
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* @fps_n: Numerator of the frame rate
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* @fps_d: Denominator of the frame rate
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* @flags: the corresponding #GstVideoTimeCodeFlags
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* @latest_daily_jam: The latest daily jam information, if present, or NULL
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*
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* Supported frame rates: 30000/1001, 60000/1001 (both with and without drop
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* frame), and integer frame rates e.g. 25/1, 30/1, 50/1, 60/1.
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*
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* The configuration of the time code.
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*
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* Since: 1.10
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*/
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struct _GstVideoTimeCodeConfig {
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guint fps_n;
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guint fps_d;
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GstVideoTimeCodeFlags flags;
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GDateTime *latest_daily_jam;
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};
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/**
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* GstVideoTimeCode:
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* @hours: the hours field of #GstVideoTimeCode
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* @minutes: the minutes field of #GstVideoTimeCode
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* @seconds: the seconds field of #GstVideoTimeCode
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* @frames: the frames field of #GstVideoTimeCode
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* @field_count: Interlaced video field count
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* @config: the corresponding #GstVideoTimeCodeConfig
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*
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* @field_count must be 0 for progressive video and 1 or 2 for interlaced.
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*
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* A representation of a SMPTE time code.
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*
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* @hours must be positive and less than 24. Will wrap around otherwise.
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* @minutes and @seconds must be positive and less than 60.
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* @frames must be less than or equal to @config.fps_n / @config.fps_d
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* These values are *NOT* automatically normalized.
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*
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* Since: 1.10
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*/
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struct _GstVideoTimeCode {
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GstVideoTimeCodeConfig config;
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guint hours;
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guint minutes;
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guint seconds;
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guint frames;
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guint field_count;
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};
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/**
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* GstVideoTimeCodeInterval:
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* @hours: the hours field of #GstVideoTimeCodeInterval
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* @minutes: the minutes field of #GstVideoTimeCodeInterval
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* @seconds: the seconds field of #GstVideoTimeCodeInterval
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* @frames: the frames field of #GstVideoTimeCodeInterval
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*
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* A representation of a difference between two #GstVideoTimeCode instances.
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* Will not necessarily correspond to a real timecode (e.g. 00:00:10;00)
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*
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* Since: 1.12
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*/
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struct _GstVideoTimeCodeInterval {
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guint hours;
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guint minutes;
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guint seconds;
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guint frames;
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};
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#define GST_VIDEO_TIME_CODE_INIT { {0, 0, 0, NULL}, 0, 0, 0, 0, 0 }
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#define GST_TYPE_VIDEO_TIME_CODE (gst_video_time_code_get_type())
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GST_VIDEO_API
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GType gst_video_time_code_get_type (void);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_new (guint fps_n,
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guint fps_d,
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GDateTime * latest_daily_jam,
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GstVideoTimeCodeFlags flags,
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guint hours,
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guint minutes,
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guint seconds,
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guint frames,
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guint field_count);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_new_empty (void);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_new_from_string (const gchar * tc_str);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_new_from_date_time (guint fps_n,
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guint fps_d,
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GDateTime * dt,
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GstVideoTimeCodeFlags flags,
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guint field_count);
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GST_VIDEO_API
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void gst_video_time_code_free (GstVideoTimeCode * tc);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_copy (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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void gst_video_time_code_init (GstVideoTimeCode * tc,
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guint fps_n,
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guint fps_d,
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GDateTime * latest_daily_jam,
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GstVideoTimeCodeFlags flags,
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guint hours,
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guint minutes,
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guint seconds,
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guint frames,
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guint field_count);
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GST_VIDEO_API
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void gst_video_time_code_init_from_date_time (GstVideoTimeCode * tc,
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guint fps_n,
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guint fps_d,
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GDateTime * dt,
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GstVideoTimeCodeFlags flags,
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guint field_count);
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GST_VIDEO_API
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void gst_video_time_code_clear (GstVideoTimeCode * tc);
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GST_VIDEO_API
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gboolean gst_video_time_code_is_valid (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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gint gst_video_time_code_compare (const GstVideoTimeCode * tc1,
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const GstVideoTimeCode * tc2);
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GST_VIDEO_API
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void gst_video_time_code_increment_frame (GstVideoTimeCode * tc);
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GST_VIDEO_API
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void gst_video_time_code_add_frames (GstVideoTimeCode * tc,
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gint64 frames);
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GST_VIDEO_API
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gchar *gst_video_time_code_to_string (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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GDateTime *gst_video_time_code_to_date_time (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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guint64 gst_video_time_code_nsec_since_daily_jam (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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guint64 gst_video_time_code_frames_since_daily_jam (const GstVideoTimeCode * tc);
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GST_VIDEO_API
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GstVideoTimeCode * gst_video_time_code_add_interval (const GstVideoTimeCode * tc, const GstVideoTimeCodeInterval * tc_inter);
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#define GST_TYPE_VIDEO_TIME_CODE_INTERVAL (gst_video_time_code_interval_get_type())
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GST_VIDEO_API
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GType gst_video_time_code_interval_get_type (void);
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GST_VIDEO_API
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GstVideoTimeCodeInterval * gst_video_time_code_interval_new (guint hours,
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guint minutes,
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guint seconds,
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guint frames);
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GST_VIDEO_API
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GstVideoTimeCodeInterval * gst_video_time_code_interval_new_from_string (const gchar * tc_inter_str);
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GST_VIDEO_API
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void gst_video_time_code_interval_free (GstVideoTimeCodeInterval * tc);
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GST_VIDEO_API
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GstVideoTimeCodeInterval * gst_video_time_code_interval_copy (const GstVideoTimeCodeInterval * tc);
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GST_VIDEO_API
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void gst_video_time_code_interval_init (GstVideoTimeCodeInterval * tc,
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guint hours,
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guint minutes,
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guint seconds,
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guint frames);
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GST_VIDEO_API
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void gst_video_time_code_interval_clear (GstVideoTimeCodeInterval * tc);
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G_END_DECLS
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#endif /* __GST_VIDEO_TIME_CODE_H__ */
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