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86888d9918
The Decklink and GstAudioBaseSink APIs don't fit very well together, which causes various problems due to inaccuracies in the clock calculations and the actual ringbuffer and GStreamer's copy getting of sync. Problems are audio drop-outs and A/V sync getting wrong after pausing/seeking. https://bugzilla.gnome.org/show_bug.cgi?id=790114
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* GStreamer
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*
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* Copyright (C) 2011 David Schleef <ds@schleef.org>
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* Copyright (C) 2014 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_DECKLINK_VIDEO_SINK_H__
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#define __GST_DECKLINK_VIDEO_SINK_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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#include "gstdecklink.h"
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G_BEGIN_DECLS
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#define GST_TYPE_DECKLINK_VIDEO_SINK \
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(gst_decklink_video_sink_get_type())
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#define GST_DECKLINK_VIDEO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_DECKLINK_VIDEO_SINK, GstDecklinkVideoSink))
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#define GST_DECKLINK_VIDEO_SINK_CAST(obj) \
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((GstDecklinkVideoSink*)obj)
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#define GST_DECKLINK_VIDEO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_DECKLINK_VIDEO_SINK, GstDecklinkVideoSinkClass))
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#define GST_IS_DECKLINK_VIDEO_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_DECKLINK_VIDEO_SINK))
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#define GST_IS_DECKLINK_VIDEO_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_DECKLINK_VIDEO_SINK))
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typedef struct _GstDecklinkVideoSink GstDecklinkVideoSink;
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typedef struct _GstDecklinkVideoSinkClass GstDecklinkVideoSinkClass;
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struct _GstDecklinkVideoSink
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{
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GstBaseSink parent;
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GstDecklinkModeEnum mode;
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gint device_number;
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GstDecklinkVideoFormat video_format;
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BMDTimecodeFormat timecode_format;
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BMDKeyerMode keyer_mode;
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gint keyer_level;
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GstVideoInfo info;
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GstClockTime internal_base_time;
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GstClockTime external_base_time;
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GstDecklinkOutput *output;
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};
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struct _GstDecklinkVideoSinkClass
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{
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GstBaseSinkClass parent_class;
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};
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GType gst_decklink_video_sink_get_type (void);
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void gst_decklink_video_sink_convert_to_internal_clock (GstDecklinkVideoSink * self,
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GstClockTime * timestamp, GstClockTime * duration);
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G_END_DECLS
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#endif /* __GST_DECKLINK_VIDEO_SINK_H__ */
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