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9d8055186d
This gives more flexibility to the subclasses and permits to remove the GstVideoAggregatorClass->disable_frame_conversion ugly API. WARNING: This breaks the API as it removes the disable_frame_conversion field API: + GstVideoAggregatorClass->find_best_format + GstVideoAggregatorPadClass->set_format + GstVideoAggregatorPadClass->prepare_frame + GstVideoAggregatorPadClass->clean_frame - GstVideoAggregatorClass->disable_frame_conversion https://bugzilla.gnome.org/show_bug.cgi?id=740768
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/* Generic video aggregator plugin
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* Copyright (C) 2008 Wim Taymans <wim@fluendo.com>
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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_VIDEO_AGGREGATOR_PAD_H__
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#define __GST_VIDEO_AGGREGATOR_PAD_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include <gst/base/gstaggregator.h>
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#include "gstvideoaggregator.h"
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_AGGREGATOR_PAD (gst_videoaggregator_pad_get_type())
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#define GST_VIDEO_AGGREGATOR_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_AGGREGATOR_PAD, GstVideoAggregatorPad))
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#define GST_VIDEO_AGGREGATOR_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COMPOSITOR_PAD, GstVideoAggregatorPadClass))
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#define GST_IS_VIDEO_AGGREGATOR_PAD(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_AGGREGATOR_PAD))
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#define GST_IS_VIDEO_AGGREGATOR_PAD_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_AGGREGATOR_PAD))
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#define GST_VIDEO_AGGREGATOR_PAD_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_VIDEO_AGGREGATOR_PAD,GstVideoAggregatorPadClass))
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typedef struct _GstVideoAggregatorPad GstVideoAggregatorPad;
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typedef struct _GstVideoAggregatorPadClass GstVideoAggregatorPadClass;
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typedef struct _GstVideoAggregatorPadPrivate GstVideoAggregatorPadPrivate;
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/**
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* GstVideoAggregatorPad:
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*
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* The opaque #GstVideoAggregatorPad structure.
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*/
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struct _GstVideoAggregatorPad
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{
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GstAggregatorPad parent;
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/* < private > */
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/* caps */
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GstVideoInfo info;
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/* properties */
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guint zorder;
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/* caps used for conversion if needed */
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GstVideoInfo conversion_info;
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gboolean need_conversion_update;
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GstBuffer *converted_buffer;
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GstBuffer *buffer;
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GstVideoInfo buffer_vinfo;
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GstClockTime start_time;
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GstClockTime end_time;
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GstVideoFrame *aggregated_frame;
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/* < private > */
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GstVideoAggregatorPadPrivate *priv;
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstVideoAggregatorPadClass:
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*
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* @set_info: Lets subclass set a converter on the pad,
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* right after a new format has been negotiated.
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* @prepare_frame: Prepare the frame from the pad buffer (if any)
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* and sets it to @aggregated_frame
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* @clean_frame: clean the frame previously prepared in prepare_frame
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*/
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struct _GstVideoAggregatorPadClass
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{
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GstAggregatorPadClass parent_class;
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gboolean (*set_info) (GstVideoAggregatorPad * pad,
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GstVideoAggregator * videoaggregator,
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GstVideoInfo * current_info,
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GstVideoInfo * wanted_info);
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gboolean (*prepare_frame) (GstVideoAggregatorPad * pad,
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GstVideoAggregator * videoaggregator);
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void (*clean_frame) (GstVideoAggregatorPad * pad,
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GstVideoAggregator * videoaggregator);
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_videoaggregator_pad_get_type (void);
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G_END_DECLS
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#endif /* __GST_VIDEO_AGGREGATOR_PAD_H__ */
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