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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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f19cfbda96
This also does the following changes:
(1) pull the bufferpool code out into gstv4l2bufferpool.c, and make a
bit more generic so it can be used both for v4l2src and v4l2sink
(2) move some of the device probing/configuration/caps stuff into
gstv4l2object.c so it does not have to be duplicated between
v4l2src and v4l2sink
Fixes bug #590280.
88 lines
2.4 KiB
C
88 lines
2.4 KiB
C
/* GStreamer
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*
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* Copyright (C) 2009 Texas Instruments, Inc - http://www.ti.com/
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*
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* Description: V4L2 sink element
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* Created on: Jul 2, 2009
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* Author: Rob Clark <rob@ti.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GSTV4L2SINK_H__
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#define __GSTV4L2SINK_H__
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#include <gst/video/gstvideosink.h>
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#include <gstv4l2object.h>
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#include <gstv4l2bufferpool.h>
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GST_DEBUG_CATEGORY_EXTERN (v4l2sink_debug);
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G_BEGIN_DECLS
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#define GST_TYPE_V4L2SINK \
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(gst_v4l2sink_get_type())
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#define GST_V4L2SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_V4L2SINK, GstV4l2Sink))
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#define GST_V4L2SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_V4L2SINK, GstV4l2SinkClass))
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#define GST_IS_V4L2SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_V4L2SINK))
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#define GST_IS_V4L2SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_V4L2SINK))
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typedef struct _GstV4l2Sink GstV4l2Sink;
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typedef struct _GstV4l2SinkClass GstV4l2SinkClass;
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struct _GstV4l2Sink {
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GstVideoSink videosink;
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/*< private >*/
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GstV4l2Object * v4l2object;
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GstCaps *probed_caps; /* all supported caps of underlying v4l2 device */
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GstCaps *current_caps; /* the current negotiated caps */
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GstV4l2BufferPool *pool;
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guint32 num_buffers;
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/**
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* field to store requested overlay-top/left/width/height props:
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* note, could maybe be combined with 'vwin' field in GstV4l2Object?
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*/
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struct v4l2_rect overlay;
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/**
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* bitmask to track which 'overlay' fields user has requested by
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* setting properties:
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*/
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guint8 overlay_fields_set;
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guint8 state;
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};
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struct _GstV4l2SinkClass {
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GstVideoSinkClass parent_class;
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GList *v4l2_class_devices;
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};
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GType gst_v4l2sink_get_type(void);
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G_END_DECLS
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#endif /* __GSTV4L2SINK_H__ */
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