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0cf392837d
Make a new refcounted xvcontext object that handles the X connection. Use the xvcontext to allocate images and windows. Move some code around so that all X calls are made from the xvcontext object. Make a GstXvImageAllocator object that allocates images from the xvcontext. We can implement a copy function now for these memory objects now. Make the bufferpool use the xvimageallocator object for its images.
133 lines
4.3 KiB
C
133 lines
4.3 KiB
C
/* GStreamer
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* Copyright (C) <2005> Julien Moutte <julien@moutte.net>
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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_XVIMAGESINK_H__
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#define __GST_XVIMAGESINK_H__
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#include <gst/video/gstvideosink.h>
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/* Helper functions */
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#include <gst/video/video.h>
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G_BEGIN_DECLS
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#define GST_TYPE_XVIMAGESINK \
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(gst_xvimagesink_get_type())
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#define GST_XVIMAGESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_XVIMAGESINK, GstXvImageSink))
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#define GST_XVIMAGESINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_XVIMAGESINK, GstXvImageSinkClass))
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#define GST_IS_XVIMAGESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_XVIMAGESINK))
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#define GST_IS_XVIMAGESINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_XVIMAGESINK))
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typedef struct _GstXvImageSink GstXvImageSink;
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typedef struct _GstXvImageSinkClass GstXvImageSinkClass;
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#include "xvimageallocator.h"
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#include "xvimagepool.h"
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#include "xvcontext.h"
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/**
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* GstXvImageSink:
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* @display_name: the name of the Display we want to render to
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* @xvcontext: our instance's #GstXvContext
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* @xwindow: the #GstXWindow we are rendering to
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* @cur_image: a reference to the last #GstXvImage that was put to @xwindow. It
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* is used when Expose events are received to redraw the latest video frame
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* @event_thread: a thread listening for events on @xwindow and handling them
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* @running: used to inform @event_thread if it should run/shutdown
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* @fps_n: the framerate fraction numerator
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* @fps_d: the framerate fraction denominator
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* @x_lock: used to protect X calls as we are not using the XLib in threaded
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* mode
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* @flow_lock: used to protect data flow routines from external calls such as
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* events from @event_thread or methods from the #GstVideoOverlay interface
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* @par: used to override calculated pixel aspect ratio from @xvcontext
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* @pool_lock: used to protect the buffer pool
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* @image_pool: a list of #GstXvImageBuffer that could be reused at next buffer
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* allocation call
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* @synchronous: used to store if XSynchronous should be used or not (for
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* debugging purpose only)
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* @keep_aspect: used to remember if reverse negotiation scaling should respect
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* aspect ratio
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* @handle_events: used to know if we should handle select XEvents or not
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* @brightness: used to store the user settings for color balance brightness
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* @contrast: used to store the user settings for color balance contrast
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* @hue: used to store the user settings for color balance hue
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* @saturation: used to store the user settings for color balance saturation
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* @cb_changed: used to store if the color balance settings where changed
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* @video_width: the width of incoming video frames in pixels
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* @video_height: the height of incoming video frames in pixels
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*
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* The #GstXvImageSink data structure.
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*/
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struct _GstXvImageSink
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{
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/* Our element stuff */
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GstVideoSink videosink;
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GstXvContextConfig config;
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GstXvContext *context;
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GstXvImageAllocator *allocator;
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GstXWindow *xwindow;
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GstBuffer *cur_image;
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GThread *event_thread;
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gboolean running;
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GstVideoInfo info;
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/* Framerate numerator and denominator */
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gint fps_n;
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gint fps_d;
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GMutex flow_lock;
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/* object-set pixel aspect ratio */
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GValue *par;
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/* the buffer pool */
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GstBufferPool *pool;
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gboolean synchronous;
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gboolean double_buffer;
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gboolean keep_aspect;
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gboolean redraw_border;
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gboolean handle_events;
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gboolean handle_expose;
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/* size of incoming video, used as the size for XvImage */
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guint video_width, video_height;
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gboolean draw_borders;
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/* stream metadata */
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gchar *media_title;
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};
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struct _GstXvImageSinkClass
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{
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GstVideoSinkClass parent_class;
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};
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GType gst_xvimagesink_get_type (void);
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G_END_DECLS
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#endif /* __GST_XVIMAGESINK_H__ */
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