gstreamer/sys/decklink/gstdecklinkvideosrc.h
Sebastian Dröge d53da45886 decklink: Use GstQueueArray instead of GQueue
Let's save two allocations and frees per frame.
2017-03-24 14:26:39 +02:00

104 lines
3 KiB
C

/* GStreamer
*
* Copyright (C) 2011 David Schleef <ds@schleef.org>
* Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com>
* Copyright (C) 2015 Florian Langlois <florian.langlois@fr.thalesgroup.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.
*/
#ifndef __GST_DECKLINK_VIDEO_SRC_H__
#define __GST_DECKLINK_VIDEO_SRC_H__
#include <gst/gst.h>
#include <gst/base/base.h>
#include <gst/video/video.h>
#include "gstdecklink.h"
G_BEGIN_DECLS
#define GST_TYPE_DECKLINK_VIDEO_SRC \
(gst_decklink_video_src_get_type())
#define GST_DECKLINK_VIDEO_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_DECKLINK_VIDEO_SRC, GstDecklinkVideoSrc))
#define GST_DECKLINK_VIDEO_SRC_CAST(obj) \
((GstDecklinkVideoSrc*)obj)
#define GST_DECKLINK_VIDEO_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_DECKLINK_VIDEO_SRC, GstDecklinkVideoSrcClass))
#define GST_IS_DECKLINK_VIDEO_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_DECKLINK_VIDEO_SRC))
#define GST_IS_DECKLINK_VIDEO_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_DECKLINK_VIDEO_SRC))
typedef struct _GstDecklinkVideoSrc GstDecklinkVideoSrc;
typedef struct _GstDecklinkVideoSrcClass GstDecklinkVideoSrcClass;
struct _GstDecklinkVideoSrc
{
GstPushSrc parent;
GstDecklinkModeEnum mode;
GstDecklinkModeEnum caps_mode;
BMDPixelFormat caps_format;
GstDecklinkConnectionEnum connection;
gint device_number;
gboolean output_stream_time;
GstClockTime skip_first_time;
gboolean drop_no_signal_frames;
GstVideoInfo info;
GstDecklinkVideoFormat video_format;
BMDTimecodeFormat timecode_format;
GstDecklinkInput *input;
GCond cond;
GMutex lock;
gboolean flushing;
GstQueueArray *current_frames;
gboolean no_signal;
guint buffer_size;
/* Protected by lock */
GstClockTime first_time;
GstClockTime *times;
GstClockTime *times_temp;
guint window_size, window_fill;
gboolean window_filled;
guint window_skip, window_skip_count;
struct {
GstClockTime xbase, b;
GstClockTime num, den;
} current_time_mapping;
struct {
GstClockTime xbase, b;
GstClockTime num, den;
} next_time_mapping;
gboolean next_time_mapping_pending;
};
struct _GstDecklinkVideoSrcClass
{
GstPushSrcClass parent_class;
};
GType gst_decklink_video_src_get_type (void);
G_END_DECLS
#endif /* __GST_DECKLINK_VIDEO_SRC_H__ */