200 lines
5.1 KiB
C
200 lines
5.1 KiB
C
#ifndef __GST_X_IMAGE_SINK_H__
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#define __GST_X_IMAGE_SINK_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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#include <string.h>
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#include <math.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_X_IMAGE_SINK \
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(gst_x_image_sink_get_type())
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#define GST_X_IMAGE_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_X_IMAGE_SINK, GstRkXImageSink))
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#define GST_X_IMAGE_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_X_IMAGE_SINK, GstRkXImageSinkClass))
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#define GST_IS_X_IMAGE_SINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_X_IMAGE_SINK))
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#define GST_IS_X_IMAGE_SINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_X_IMAGE_SINK))
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typedef struct _GstXContext GstXContext;
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typedef struct _GstXWindow GstXWindow;
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typedef struct _GstRkXImageSink GstRkXImageSink;
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typedef struct _GstRkXImageSinkClass GstRkXImageSinkClass;
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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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*
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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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{
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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 width, height;
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gint widthmm, heightmm;
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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 #GstVideoOverlay 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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{
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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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* GstRkXImageSink:
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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 #GstVideoOverlay 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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* @handle_events: used to know if we should handle select XEvents or not
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*
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* The #GstRkXImageSink data structure.
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*/
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struct _GstRkXImageSink
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{
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/* Our element stuff */
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GstVideoSink videosink;
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gint fd;
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gint conn_id;
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gint crtc_id;
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gint plane_id;
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guint pipe;
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guint16 hdisplay, vdisplay;
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guint32 buffer_id;
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/* capabilities */
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gboolean has_prime_import;
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gboolean has_prime_export;
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gboolean has_async_page_flip;
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char *display_name;
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GstXContext *xcontext;
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GstXWindow *xwindow;
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GstBuffer *cur_image;
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GstVideoRectangle clip_rect;
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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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gint par_n;
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gint par_d;
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gboolean keep_aspect;
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GMutex x_lock;
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GMutex flow_lock;
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gboolean synchronous;
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gboolean handle_events;
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gboolean handle_expose;
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gboolean draw_border;
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/* stream metadata */
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gchar *media_title;
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GstVideoInfo vinfo;
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GstCaps *allowed_caps;
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GstBufferPool *pool;
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GstAllocator *allocator;
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GstBuffer *last_buffer;
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gchar *devname;
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gchar *bus_id;
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guint32 mm_width, mm_height;
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GstPoll *poll;
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GstPollFD pollfd;
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guint32 last_fb_id;
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GstVideoRectangle save_rect;
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gboolean paused;
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};
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struct _GstRkXImageSinkClass
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{
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GstVideoSinkClass parent_class;
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};
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GType gst_x_image_sink_get_type (void);
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G_END_DECLS
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#endif /* __GST_X_IMAGE_SINK_H__ */
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