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If we receive video buffers with non-perfect timestamps, the caption buffers' timestamps might fall in the interval between the end of one video buffer and the start of the next one. Make our criteria for dropping that the caption buffer has a timestamp older than the end of the previous video buffer, not older than the start of the new one, unless of course this is the first video buffer. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1207>
65 lines
2 KiB
C
65 lines
2 KiB
C
/*
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* GStreamer
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* Copyright (C) 2018 Sebastian Dröge <sebastian@centricular.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_CCCOMBINER_H__
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#define __GST_CCCOMBINER_H__
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#include <gst/gst.h>
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#include <gst/base/base.h>
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_CCCOMBINER \
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(gst_cc_combiner_get_type())
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#define GST_CCCOMBINER(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CCCOMBINER,GstCCCombiner))
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#define GST_CCCOMBINER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CCCOMBINER,GstCCCombinerClass))
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#define GST_IS_CCCOMBINER(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CCCOMBINER))
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#define GST_IS_CCCOMBINER_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CCCOMBINER))
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typedef struct _GstCCCombiner GstCCCombiner;
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typedef struct _GstCCCombinerClass GstCCCombinerClass;
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struct _GstCCCombiner
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{
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GstAggregator parent;
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gint video_fps_n, video_fps_d;
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GstClockTime previous_video_running_time_end;
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GstClockTime current_video_running_time;
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GstClockTime current_video_running_time_end;
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GstBuffer *current_video_buffer;
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GArray *current_frame_captions;
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GstVideoCaptionType current_caption_type;
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};
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struct _GstCCCombinerClass
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{
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GstAggregatorClass parent_class;
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};
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GType gst_cc_combiner_get_type (void);
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G_END_DECLS
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#endif /* __GST_CCCOMBINER_H__ */
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