| /* 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., 51 Franklin St, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __GST_XVCONTEXT_H__ |
| #define __GST_XVCONTEXT_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> |
| |
| #include <gst/video/video.h> |
| |
| G_BEGIN_DECLS |
| |
| typedef struct _GstXvContextConfig GstXvContextConfig; |
| typedef struct _GstXvImageFormat GstXvImageFormat; |
| typedef struct _GstXvContext GstXvContext; |
| |
| /** |
| * GstXvContextConfig: |
| * |
| * current configuration of the context |
| */ |
| struct _GstXvContextConfig |
| { |
| gchar *display_name; |
| guint adaptor_nr; |
| |
| /* port attributes */ |
| gboolean autopaint_colorkey; |
| gint colorkey; |
| |
| gboolean double_buffer; |
| |
| gint brightness; |
| gint contrast; |
| gint hue; |
| gint saturation; |
| gboolean cb_changed; |
| }; |
| |
| /** |
| * 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; |
| }; |
| |
| #define GST_TYPE_XVCONTEXT (gst_xvcontext_get_type()) |
| #define GST_IS_XVCONTEXT(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_XVCONTEXT)) |
| #define GST_XVCONTEXT_CAST(obj) ((GstXvContext *)obj) |
| #define GST_XVCONTEXT(obj) (GST_XVCONTEXT_CAST(obj)) |
| |
| /* |
| * GstXvContext: |
| * @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 _GstXvContext |
| { |
| GstMiniObject parent; |
| |
| GMutex lock; |
| |
| 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; |
| guint adaptor_nr; |
| gint im_format; |
| |
| /* port features */ |
| gboolean have_autopaint_colorkey; |
| gboolean have_colorkey; |
| gboolean have_double_buffer; |
| gboolean have_iturbt709; |
| |
| 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; |
| }; |
| |
| GType gst_xvcontext_get_type (void); |
| |
| void gst_xvcontext_config_clear (GstXvContextConfig *config); |
| |
| GstXvContext * gst_xvcontext_new (GstXvContextConfig *config, GError **error); |
| |
| /* refcounting */ |
| static inline GstXvContext * |
| gst_xvcontext_ref (GstXvContext * xvcontext) |
| { |
| return GST_XVCONTEXT_CAST (gst_mini_object_ref (GST_MINI_OBJECT_CAST ( |
| xvcontext))); |
| } |
| |
| static inline void |
| gst_xvcontext_unref (GstXvContext * xvcontext) |
| { |
| gst_mini_object_unref (GST_MINI_OBJECT_CAST (xvcontext)); |
| } |
| |
| gint gst_xvcontext_get_format_from_info (GstXvContext * xvcontext, |
| GstVideoInfo * info); |
| |
| |
| void gst_xvcontext_set_synchronous (GstXvContext * xvcontext, |
| gboolean synchronous); |
| void gst_xvcontext_update_colorbalance (GstXvContext * xvcontext, |
| GstXvContextConfig * config); |
| void gst_xvcontext_set_colorimetry (GstXvContext * xvcontext, |
| GstVideoColorimetry *colorimetry); |
| |
| |
| typedef struct _GstXWindow GstXWindow; |
| |
| /* |
| * 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 |
| { |
| GstXvContext *context; |
| |
| Window win; |
| gint width, height; |
| gboolean have_render_rect; |
| GstVideoRectangle render_rect; |
| gboolean internal; |
| GC gc; |
| }; |
| |
| G_END_DECLS |
| |
| GstXWindow * gst_xvcontext_create_xwindow (GstXvContext * context, |
| gint width, gint height); |
| GstXWindow * gst_xvcontext_create_xwindow_from_xid (GstXvContext * context, XID xid); |
| |
| void gst_xwindow_destroy (GstXWindow * window); |
| |
| void gst_xwindow_set_event_handling (GstXWindow * window, gboolean handle_events); |
| void gst_xwindow_set_title (GstXWindow * window, const gchar * title); |
| |
| void gst_xwindow_update_geometry (GstXWindow * window); |
| void gst_xwindow_clear (GstXWindow * window); |
| |
| void gst_xwindow_set_render_rectangle (GstXWindow * window, |
| gint x, gint y, gint width, gint height); |
| |
| |
| |
| #endif /* __GST_XVCONTEXT_H__ */ |