| /* 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_XVIMAGESINK_H__ |
| #define __GST_XVIMAGESINK_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 <X11/extensions/Xv.h> |
| #include <X11/extensions/Xvlib.h> |
| |
| #include <string.h> |
| #include <math.h> |
| #include <stdlib.h> |
| |
| /* Helper functions */ |
| #include <gst/video/video.h> |
| |
| G_BEGIN_DECLS |
| #define GST_TYPE_XVIMAGESINK \ |
| (gst_xvimagesink_get_type()) |
| #define GST_XVIMAGESINK(obj) \ |
| (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_XVIMAGESINK, GstXvImageSink)) |
| #define GST_XVIMAGESINK_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_XVIMAGESINK, GstXvImageSinkClass)) |
| #define GST_IS_XVIMAGESINK(obj) \ |
| (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_XVIMAGESINK)) |
| #define GST_IS_XVIMAGESINK_CLASS(klass) \ |
| (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_XVIMAGESINK)) |
| typedef struct _GstXContext GstXContext; |
| typedef struct _GstXWindow GstXWindow; |
| typedef struct _GstXvImageFormat GstXvImageFormat; |
| |
| typedef struct _GstXvImageSink GstXvImageSink; |
| typedef struct _GstXvImageSinkClass GstXvImageSinkClass; |
| |
| #include "xvimagepool.h" |
| |
| /* |
| * 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 |
| * @xv_port_id: the XVideo port ID |
| * @im_format: used to store at least a valid format for XShm calls checks |
| * @formats_list: list of supported image formats on @xv_port_id |
| * @channels_list: list of #GstColorBalanceChannels |
| * @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; |
| |
| XvPortID xv_port_id; |
| guint nb_adaptors; |
| gchar **adaptors; |
| gint im_format; |
| |
| GList *formats_list; |
| GList *channels_list; |
| |
| GstCaps *caps; |
| |
| /* Optimisation storage for buffer_alloc return */ |
| GstCaps *last_caps; |
| gint last_format; |
| gint last_width; |
| gint last_height; |
| }; |
| |
| /* |
| * 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 #GstVideoOverlay 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; |
| }; |
| |
| /** |
| * GstXvImageFormat: |
| * @format: the image format |
| * @caps: generated #GstCaps for this image format |
| * |
| * Structure storing image format to #GstCaps association. |
| */ |
| struct _GstXvImageFormat |
| { |
| gint format; |
| GstVideoFormat vformat; |
| GstCaps *caps; |
| }; |
| |
| |
| /** |
| * GstXvImageSink: |
| * @display_name: the name of the Display we want to render to |
| * @xcontext: our instance's #GstXContext |
| * @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 @xcontext |
| * @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; |
| |
| char *display_name; |
| guint adaptor_no; |
| |
| GstXContext *xcontext; |
| GstXWindow *xwindow; |
| GstBuffer *cur_image; |
| |
| GThread *event_thread; |
| gboolean running; |
| |
| GstVideoInfo info; |
| |
| /* Framerate numerator and denominator */ |
| gint fps_n; |
| gint fps_d; |
| |
| GMutex x_lock; |
| 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; |
| |
| gint brightness; |
| gint contrast; |
| gint hue; |
| gint saturation; |
| gboolean cb_changed; |
| |
| /* size of incoming video, used as the size for XvImage */ |
| guint video_width, video_height; |
| |
| /* port attributes */ |
| gboolean autopaint_colorkey; |
| gint colorkey; |
| |
| gboolean draw_borders; |
| |
| /* port features */ |
| gboolean have_autopaint_colorkey; |
| gboolean have_colorkey; |
| gboolean have_double_buffer; |
| |
| /* stream metadata */ |
| gchar *media_title; |
| |
| /* target video rectangle */ |
| GstVideoRectangle render_rect; |
| gboolean have_render_rect; |
| }; |
| |
| struct _GstXvImageSinkClass |
| { |
| GstVideoSinkClass parent_class; |
| }; |
| |
| GType gst_xvimagesink_get_type (void); |
| |
| G_END_DECLS |
| #endif /* __GST_XVIMAGESINK_H__ */ |