678064d603
We now have a single property to select the timecode source that should be applied, and for each timecode source the timecode is updated at every frame. Then based on a set mode, the timecode is added to the frame if none exists already or all existing timecodes are removed and the timecode is added. In addition the real-time clock is considered a proper timecode source now instead of only allowing to initialize once in the beginning with it, and also instead of just taking the current time we now take the current time at the clock time of the video frame.
104 lines
3.4 KiB
C
104 lines
3.4 KiB
C
/*
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* GStreamer
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* Copyright (C) 2016 Vivia Nikolaidou <vivia@toolsonair.com>
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*
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* gsttimecodestamper.h
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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_TIME_CODE_STAMPER_H__
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#define __GST_TIME_CODE_STAMPER_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/audio/audio.h>
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#define GST_TYPE_TIME_CODE_STAMPER (gst_timecodestamper_get_type())
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#define GST_TIME_CODE_STAMPER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TIME_CODE_STAMPER,GstTimeCodeStamper))
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#define GST_TIME_CODE_STAMPER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_TIME_CODE_STAMPER,GstTimeCodeStamperClass))
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#define GST_TIME_CODE_STAMPER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_TIME_CODE_STAMPER,GstTimeCodeStamperClass))
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#define GST_IS_TIME_CODE_STAMPER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TIME_CODE_STAMPER))
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#define GST_IS_TIME_CODE_STAMPER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_TIME_CODE_STAMPER))
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#define GST_TYPE_TIME_CODE_STAMPER_SOURCE (gst_timecodestamper_source_get_type())
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#define GST_TYPE_TIME_CODE_STAMPER_SET (gst_timecodestamper_set_get_type())
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typedef struct _GstTimeCodeStamper GstTimeCodeStamper;
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typedef struct _GstTimeCodeStamperClass GstTimeCodeStamperClass;
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typedef enum GstTimeCodeStamperSource
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{
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GST_TIME_CODE_STAMPER_SOURCE_INTERNAL,
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GST_TIME_CODE_STAMPER_SOURCE_ZERO,
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GST_TIME_CODE_STAMPER_SOURCE_LAST_KNOWN,
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GST_TIME_CODE_STAMPER_SOURCE_RTC,
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} GstTimeCodeStamperSource;
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typedef enum GstTimeCodeStamperSet {
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GST_TIME_CODE_STAMPER_SET_NEVER,
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GST_TIME_CODE_STAMPER_SET_KEEP,
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GST_TIME_CODE_STAMPER_SET_ALWAYS,
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} GstTimeCodeStamperSet;
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/**
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* GstTimeCodeStamper:
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*
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* Opaque data structure.
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*/
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struct _GstTimeCodeStamper
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{
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GstBaseTransform videofilter;
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/* protected by object lock */
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GstPad *ltcpad;
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/* < private > */
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/* Properties, protected by object lock */
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GstTimeCodeStamperSource tc_source;
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GstTimeCodeStamperSet tc_set;
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gboolean drop_frame;
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gboolean post_messages;
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GstVideoTimeCode *set_internal_tc;
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GDateTime *ltc_daily_jam;
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gboolean ltc_auto_resync;
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GstClockTime rtc_max_drift;
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gboolean rtc_auto_resync;
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gint timecode_offset;
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/* Timecode tracking, protected by object lock */
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GstVideoTimeCode *internal_tc;
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GstVideoTimeCode *last_tc;
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GstVideoTimeCode *rtc_tc;
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/* Internal state */
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GstVideoInfo vinfo; /* protected by object lock, changed only from video streaming thread */
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};
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struct _GstTimeCodeStamperClass
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{
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GstBaseTransformClass parent_class;
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};
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GType gst_timecodestamper_get_type (void);
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GType gst_timecodestamper_source_get_type (void);
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GType gst_timecodestamper_set_get_type (void);
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G_END_DECLS
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#endif /* __GST_TIME_CODE_STAMPER_H__ */
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