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8345caf6e0
Previously imagefreeze would always operate as non-live element and output frames as fast as possible according to the configured segment (via SEEK events) and the negotiated framerate from start to stop or the other way around. With the new live mode (enabled via the is-live property) it would only output frames in PLAYING. Frames would be output according to the negotiated framerate unless it would be too late, in which case it would jump ahead and skip over the requirement amount of frames. This makes it possible to actually use imagefreeze in live pipelines without having to manually ensure somehow that it would start outputting at the current running time and without still risking to fall behind without recovery. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/653>
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/* GStreamer
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* Copyright (C) 2010 Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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_IMAGE_FREEZE_H__
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#define __GST_IMAGE_FREEZE_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_IMAGE_FREEZE \
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(gst_image_freeze_get_type())
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#define GST_IMAGE_FREEZE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreeze))
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#define GST_IMAGE_FREEZE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
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#define GST_IMAGE_FREEZE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_IMAGE_FREEZE,GstImageFreezeClass))
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#define GST_IS_IMAGE_FREEZE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IMAGE_FREEZE))
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#define GST_IS_IMAGE_FREEZE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IMAGE_FREEZE))
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typedef struct _GstImageFreeze GstImageFreeze;
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typedef struct _GstImageFreezeClass GstImageFreezeClass;
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struct _GstImageFreeze
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{
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GstElement parent;
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/* < private > */
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GstPad *sinkpad;
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GstPad *srcpad;
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GMutex lock;
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GstBuffer *buffer;
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GstCaps *buffer_caps, *current_caps;
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gboolean negotiated_framerate;
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gint fps_n, fps_d;
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GstSegment segment;
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gboolean need_segment;
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guint seqnum;
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gint num_buffers;
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gint num_buffers_left;
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gboolean allow_replace;
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gboolean is_live;
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gboolean blocked;
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GCond blocked_cond;
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GstClockID clock_id;
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guint64 offset;
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gboolean flushing;
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};
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struct _GstImageFreezeClass
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{
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GstElementClass parent_class;
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};
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GType gst_image_freeze_get_type (void);
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G_END_DECLS
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#endif /* __GST_IMAGE_FREEZE_H__ */
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