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/* GStreamer
* Copyright (C) <2005> Julien Moutte <>
* 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
* 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_XV_IMAGE_SINK_H__
#define __GST_XV_IMAGE_SINK_H__
#include <gst/video/gstvideosink.h>
/* Helper functions */
#include <gst/video/video.h>
#define GST_XV_IMAGE_SINK(obj) \
#define GST_XV_IMAGE_SINK_CLASS(klass) \
#define GST_IS_XV_IMAGE_SINK(obj) \
#define GST_IS_XV_IMAGE_SINK_CLASS(klass) \
typedef struct _GstXvImageSink GstXvImageSink;
typedef struct _GstXvImageSinkClass GstXvImageSinkClass;
#include "xvimageallocator.h"
#include "xvimagepool.h"
#include "xvcontext.h"
* GstXvImageSink:
* @display_name: the name of the Display we want to render to
* @xvcontext: our instance's #GstXvContext
* @xwindow: the #GstXWindow we are rendering to
* @cur_image: a reference to the last #GstXvImage that was put to @xwindow. It
* is used when Expose events are received to redraw the latest video frame
* @event_thread: a thread listening for events on @xwindow and handling them
* @running: used to inform @event_thread if it should run/shutdown
* @fps_n: the framerate fraction numerator
* @fps_d: the framerate fraction denominator
* @x_lock: used to protect X calls as we are not using the XLib in threaded
* mode
* @flow_lock: used to protect data flow routines from external calls such as
* events from @event_thread or methods from the #GstVideoOverlay interface
* @par: used to override calculated pixel aspect ratio from @xvcontext
* @pool_lock: used to protect the buffer pool
* @image_pool: a list of #GstXvImageBuffer that could be reused at next buffer
* allocation call
* @synchronous: used to store if XSynchronous should be used or not (for
* debugging purpose only)
* @keep_aspect: used to remember if reverse negotiation scaling should respect
* aspect ratio
* @handle_events: used to know if we should handle select XEvents or not
* @brightness: used to store the user settings for color balance brightness
* @contrast: used to store the user settings for color balance contrast
* @hue: used to store the user settings for color balance hue
* @saturation: used to store the user settings for color balance saturation
* @cb_changed: used to store if the color balance settings where changed
* @video_width: the width of incoming video frames in pixels
* @video_height: the height of incoming video frames in pixels
* The #GstXvImageSink data structure.
struct _GstXvImageSink
/* Our element stuff */
GstVideoSink videosink;
GstXvContextConfig config;
GstXvContext *context;
GstXvImageAllocator *allocator;
GstXWindow *xwindow;
GstBuffer *cur_image;
GThread *event_thread;
gboolean running;
GstVideoInfo info;
/* Framerate numerator and denominator */
gint fps_n;
gint fps_d;
GMutex flow_lock;
/* object-set pixel aspect ratio */
GValue *par;
/* the buffer pool */
GstBufferPool *pool;
gboolean synchronous;
gboolean double_buffer;
gboolean keep_aspect;
gboolean redraw_border;
gboolean handle_events;
gboolean handle_expose;
/* size of incoming video, used as the size for XvImage */
guint video_width, video_height;
gboolean draw_borders;
/* stream metadata */
gchar *media_title;
struct _GstXvImageSinkClass
GstVideoSinkClass parent_class;
GType gst_xv_image_sink_get_type (void);
#endif /* __GST_XV_IMAGE_SINK_H__ */