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c17d5e36ad
By default imagefreeze will still reject new buffers after the first one and immediately return GST_FLOW_EOS but the new allow-replace property allows to change this. Whenever updating the buffer we now also keep track of the configured caps of the buffer and from the source pad task negotiate correctly based on the potentially updated caps. Only the very first time negotiation of a framerate with downstream is performed, afterwards only the caps themselves apart from the framerate are updated.
83 lines
2.3 KiB
C
83 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 buffer_caps_updated;
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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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guint64 offset;
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/* TRUE if currently doing a flushing seek, protected
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* by srcpad's stream lock */
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gint seeking;
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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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