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Original commit message from CVS: * gst-libs/gst/video/Makefile.am: compile in copied-over videofilter into the video library * gst-libs/gst/video/videosink.h: rename the header to gstvideosink.h since it's a base GstObject class * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.h: use the new header
224 lines
6.4 KiB
C
224 lines
6.4 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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_XIMAGESINK_H__
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#define __GST_XIMAGESINK_H__
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#include <gst/video/gstvideosink.h>
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#ifdef HAVE_XSHM
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#include <sys/types.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#endif /* HAVE_XSHM */
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#ifdef HAVE_XSHM
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#include <X11/extensions/XShm.h>
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#endif /* HAVE_XSHM */
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#include <string.h>
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#include <math.h>
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G_BEGIN_DECLS
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#define GST_TYPE_XIMAGESINK \
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(gst_ximagesink_get_type())
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#define GST_XIMAGESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_XIMAGESINK, GstXImageSink))
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#define GST_XIMAGESINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_XIMAGESINK, GstXImageSink))
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#define GST_IS_XIMAGESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_XIMAGESINK))
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#define GST_IS_XIMAGESINK_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_XIMAGESINK))
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typedef struct _GstXContext GstXContext;
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typedef struct _GstXWindow GstXWindow;
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typedef struct _GstXImageBuffer GstXImageBuffer;
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typedef struct _GstXImageBufferClass GstXImageBufferClass;
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typedef struct _GstXImageSink GstXImageSink;
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typedef struct _GstXImageSinkClass GstXImageSinkClass;
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/**
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* GstXContext:
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* @disp: the X11 Display of this context
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* @screen: the default Screen of Display @disp
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* @screen_num: the Screen number of @screen
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* @visual: the default Visual of Screen @screen
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* @root: the root Window of Display @disp
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* @white: the value of a white pixel on Screen @screen
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* @black: the value of a black pixel on Screen @screen
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* @depth: the color depth of Display @disp
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* @bpp: the number of bits per pixel on Display @disp
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* @endianness: the endianness of image bytes on Display @disp
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* @width: the width in pixels of Display @disp
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* @height: the height in pixels of Display @disp
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* @widthmm: the width in millimeters of Display @disp
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* @heightmm: the height in millimeters of Display @disp
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* @par: the pixel aspect ratio calculated from @width, @widthmm and @height,
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* @heightmm ratio
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* @use_xshm: used to known wether of not XShm extension is usable or not even
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* if the Extension is present
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* @caps: the #GstCaps that Display @disp can accept
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*
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* Structure used to store various informations collected/calculated for a
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* Display.
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*/
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struct _GstXContext {
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Display *disp;
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Screen *screen;
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gint screen_num;
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Visual *visual;
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Window root;
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gulong white, black;
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gint depth;
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gint bpp;
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gint endianness;
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gint width, height;
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gint widthmm, heightmm;
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GValue *par; /* calculated pixel aspect ratio */
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gboolean use_xshm;
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GstCaps *caps;
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};
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/**
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* GstXWindow:
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* @win: the Window ID of this X11 window
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* @width: the width in pixels of Window @win
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* @height: the height in pixels of Window @win
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* @internal: used to remember if Window @win was created internally or passed
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* through the #GstXOverlay interface
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* @gc: the Graphical Context of Window @win
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*
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* Structure used to store informations about a Window.
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*/
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struct _GstXWindow {
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Window win;
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gint width, height;
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gboolean internal;
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GC gc;
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};
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/**
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* GstXImageBuffer:
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* @ximagesink: a reference to our #GstXImageSink
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* @ximage: the XImage of this buffer
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* @width: the width in pixels of XImage @ximage
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* @height: the height in pixels of XImage @ximage
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* @size: the size in bytes of XImage @ximage
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*
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* Subclass of #GstBuffer containing additional information about an XImage.
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*/
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struct _GstXImageBuffer {
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GstBuffer buffer;
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/* Reference to the ximagesink we belong to */
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GstXImageSink *ximagesink;
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XImage *ximage;
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#ifdef HAVE_XSHM
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XShmSegmentInfo SHMInfo;
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#endif /* HAVE_XSHM */
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gint width, height;
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size_t size;
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};
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/**
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* GstXImageSink:
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* @display_name: the name of the Display we want to render to
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* @xcontext: our instance's #GstXContext
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* @xwindow: the #GstXWindow we are rendering to
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* @ximage: internal #GstXImage used to store incoming buffers and render when
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* not using the buffer_alloc optimization mechanism
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* @cur_image: a reference to the last #GstXImage 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 #GstXOverlay interface
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* @par: used to override calculated pixel aspect ratio from @xcontext
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* @pool_lock: used to protect the buffer pool
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* @buffer_pool: a list of #GstXImageBuffer 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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*
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* The #GstXImageSink data structure.
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*/
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struct _GstXImageSink {
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/* Our element stuff */
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GstVideoSink videosink;
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char *display_name;
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GstXContext *xcontext;
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GstXWindow *xwindow;
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GstXImageBuffer *ximage;
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GstXImageBuffer *cur_image;
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GThread *event_thread;
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gboolean running;
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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 *x_lock;
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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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GMutex *pool_lock;
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GSList *buffer_pool;
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gboolean synchronous;
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gboolean keep_aspect;
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};
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struct _GstXImageSinkClass {
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GstVideoSinkClass parent_class;
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};
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GType gst_ximagesink_get_type(void);
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G_END_DECLS
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#endif /* __GST_XIMAGESINK_H__ */
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