--- /dev/null
+/* GStreamer
+ * Copyright (C) <2005> Julien Moutte <julien@moutte.net>
+ *
+ * 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
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_XIMAGESINK_H__
+#define __GST_XIMAGESINK_H__
+
+#include <gst/video/gstvideosink.h>
+
+#ifdef HAVE_XSHM
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/shm.h>
+#endif /* HAVE_XSHM */
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#ifdef HAVE_XSHM
+#include <X11/extensions/XShm.h>
+#endif /* HAVE_XSHM */
+
+#include <string.h>
+#include <math.h>
+
+G_BEGIN_DECLS
+#define GST_TYPE_XIMAGESINK \
+ (gst_ximagesink_get_type())
+#define GST_XIMAGESINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_XIMAGESINK, GstXImageSink))
+#define GST_XIMAGESINK_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_XIMAGESINK, GstXImageSinkClass))
+#define GST_IS_XIMAGESINK(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_XIMAGESINK))
+#define GST_IS_XIMAGESINK_CLASS(klass) \
+ (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_XIMAGESINK))
+typedef struct _GstXContext GstXContext;
+typedef struct _GstXWindow GstXWindow;
+
+typedef struct _GstXImageBuffer GstXImageBuffer;
+typedef struct _GstXImageBufferClass GstXImageBufferClass;
+
+typedef struct _GstXImageSink GstXImageSink;
+typedef struct _GstXImageSinkClass GstXImageSinkClass;
+
+/*
+ * GstXContext:
+ * @disp: the X11 Display of this context
+ * @screen: the default Screen of Display @disp
+ * @screen_num: the Screen number of @screen
+ * @visual: the default Visual of Screen @screen
+ * @root: the root Window of Display @disp
+ * @white: the value of a white pixel on Screen @screen
+ * @black: the value of a black pixel on Screen @screen
+ * @depth: the color depth of Display @disp
+ * @bpp: the number of bits per pixel on Display @disp
+ * @endianness: the endianness of image bytes on Display @disp
+ * @width: the width in pixels of Display @disp
+ * @height: the height in pixels of Display @disp
+ * @widthmm: the width in millimeters of Display @disp
+ * @heightmm: the height in millimeters of Display @disp
+ * @par: the pixel aspect ratio calculated from @width, @widthmm and @height,
+ * @heightmm ratio
+ * @use_xshm: used to known wether of not XShm extension is usable or not even
+ * if the Extension is present
+ * @caps: the #GstCaps that Display @disp can accept
+ *
+ * Structure used to store various informations collected/calculated for a
+ * Display.
+ */
+struct _GstXContext
+{
+ Display *disp;
+
+ Screen *screen;
+ gint screen_num;
+
+ Visual *visual;
+
+ Window root;
+
+ gulong white, black;
+
+ gint depth;
+ gint bpp;
+ gint endianness;
+
+ gint width, height;
+ gint widthmm, heightmm;
+ GValue *par; /* calculated pixel aspect ratio */
+
+ gboolean use_xshm;
+
+ GstCaps *caps;
+ GstCaps *last_caps;
+};
+
+/*
+ * GstXWindow:
+ * @win: the Window ID of this X11 window
+ * @width: the width in pixels of Window @win
+ * @height: the height in pixels of Window @win
+ * @internal: used to remember if Window @win was created internally or passed
+ * through the #GstXOverlay interface
+ * @gc: the Graphical Context of Window @win
+ *
+ * Structure used to store informations about a Window.
+ */
+struct _GstXWindow
+{
+ Window win;
+ gint width, height;
+ gboolean internal;
+ GC gc;
+};
+
+/**
+ * GstXImageBuffer:
+ * @ximagesink: a reference to our #GstXImageSink
+ * @ximage: the XImage of this buffer
+ * @width: the width in pixels of XImage @ximage
+ * @height: the height in pixels of XImage @ximage
+ * @size: the size in bytes of XImage @ximage
+ *
+ * Subclass of #GstBuffer containing additional information about an XImage.
+ */
+struct _GstXImageBuffer
+{
+ GstBuffer buffer;
+
+ /* Reference to the ximagesink we belong to */
+ GstXImageSink *ximagesink;
+
+ XImage *ximage;
+
+#ifdef HAVE_XSHM
+ XShmSegmentInfo SHMInfo;
+#endif /* HAVE_XSHM */
+
+ gint width, height;
+ size_t size;
+};
+
+/**
+ * GstXImageSink:
+ * @display_name: the name of the Display we want to render to
+ * @xcontext: our instance's #GstXContext
+ * @xwindow: the #GstXWindow we are rendering to
+ * @ximage: internal #GstXImage used to store incoming buffers and render when
+ * not using the buffer_alloc optimization mechanism
+ * @cur_image: a reference to the last #GstXImage 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 #GstXOverlay interface
+ * @par: used to override calculated pixel aspect ratio from @xcontext
+ * @pool_lock: used to protect the buffer pool
+ * @buffer_pool: a list of #GstXImageBuffer 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
+ *
+ * The #GstXImageSink data structure.
+ */
+struct _GstXImageSink
+{
+ /* Our element stuff */
+ GstVideoSink videosink;
+
+ char *display_name;
+
+ GstXContext *xcontext;
+ GstXWindow *xwindow;
+ GstXImageBuffer *ximage;
+ GstXImageBuffer *cur_image;
+
+ GThread *event_thread;
+ gboolean running;
+
+ /* Framerate numerator and denominator */
+ gint fps_n;
+ gint fps_d;
+
+ GMutex *x_lock;
+ GMutex *flow_lock;
+
+ /* object-set pixel aspect ratio */
+ GValue *par;
+
+ GMutex *pool_lock;
+ GSList *buffer_pool;
+
+ gboolean synchronous;
+ gboolean keep_aspect;
+ gboolean handle_events;
+ gboolean handle_expose;
+ gboolean draw_border;
+
+ /* stream metadata */
+ gchar *media_title;
+};
+
+struct _GstXImageSinkClass
+{
+ GstVideoSinkClass parent_class;
+};
+
+GType gst_ximagesink_get_type (void);
+
+G_END_DECLS
+#endif /* __GST_XIMAGESINK_H__ */
projects / mafwsubrenderer / blobdiff