gstreamer/subprojects/gst-plugins-base/sys/ximage/ximagesink.h

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/* 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_X_IMAGE_SINK_H__
#define __GST_X_IMAGE_SINK_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>
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/* Helper functions */
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_X_IMAGE_SINK \
(gst_x_image_sink_get_type())
#define GST_X_IMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_X_IMAGE_SINK, GstXImageSink))
#define GST_X_IMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_X_IMAGE_SINK, GstXImageSinkClass))
#define GST_IS_X_IMAGE_SINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_X_IMAGE_SINK))
#define GST_IS_X_IMAGE_SINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_X_IMAGE_SINK))
typedef struct _GstXContext GstXContext;
typedef struct _GstXWindow GstXWindow;
typedef struct _GstXTouchDevice GstXTouchDevice;
Port from GstData to GstMiniObject. Original commit message from CVS: Port from GstData to GstMiniObject. * ext/ogg/gstoggdemux.c: (gst_ogg_pad_dispose): * ext/ogg/gstoggmux.c: (gst_ogg_mux_buffer_from_page), (gst_ogg_mux_queue_pads), (gst_ogg_mux_set_header_on_caps), (gst_ogg_mux_collected): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_comment_packet), (theora_handle_data_packet): * ext/theora/theoraenc.c: (theora_buffer_from_packet), (theora_set_header_on_caps), (theora_enc_chain): * ext/vorbis/vorbisdec.c: (vorbis_dec_sink_event), (vorbis_handle_comment_packet): * ext/vorbis/vorbisenc.c: (gst_vorbisenc_set_header_on_caps): * ext/vorbis/vorbisparse.c: (vorbis_parse_set_header_on_caps): * gst-libs/gst/audio/gstaudiofilter.c: (gst_audiofilter_chain): * gst-libs/gst/tag/gstvorbistag.c: (gst_vorbis_tag_chain): * gst/audioconvert/gstaudioconvert.c: (gst_audio_convert_get_buffer): * gst/playback/gstdecodebin.c: (gst_decode_bin_class_init): * gst/playback/gstplaybasebin.c: (check_queue), (probe_triggered), (mute_stream), (silence_stream): * gst/playback/gstplaybin.c: (gst_play_bin_class_init): * gst/volume/gstvolume.c: (volume_transform): * sys/ximage/ximagesink.c: (gst_ximage_buffer_finalize), (gst_ximage_buffer_init), (gst_ximage_buffer_class_init), (gst_ximage_buffer_get_type), (gst_ximagesink_check_xshm_calls), (gst_ximagesink_ximage_new), (gst_ximagesink_ximage_destroy), (gst_ximagesink_ximage_put), (gst_ximagesink_imagepool_clear), (gst_ximagesink_show_frame), (gst_ximagesink_buffer_free), (gst_ximagesink_buffer_alloc): * sys/ximage/ximagesink.h:
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typedef struct _GstXImageSink GstXImageSink;
typedef struct _GstXImageSinkClass GstXImageSinkClass;
#include "ximagepool.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
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* @use_xshm: used to known whether of not XShm extension is usable or not even
* if the Extension is present
* @use_xkb: used to known wether of not Xkb extension is usable or not even
* if the Extension is present
* @use_xi2: used to known wether of not XInput2 extension is usable or not even
* if the Extension is present
* @xi_opcode: XInput opcode
* @caps: the #GstCaps that Display @disp can accept
*
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* Structure used to store various information 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 width, height;
gint widthmm, heightmm;
GValue *par; /* calculated pixel aspect ratio */
gboolean use_xshm;
gboolean use_xkb;
gboolean use_xi2;
int xi_opcode;
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 #GstVideoOverlay interface
* @gc: the Graphical Context of Window @win
*
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* Structure used to store information about a Window.
*/
struct _GstXWindow
{
Window win;
gint width, height;
gboolean internal;
GC gc;
};
/*
* GstXTouchDevice:
* @name: the name of this decive
* @id: the device ID of this device
* @pressure_valuator: index of the valuator that encodes pressure data, if present
* @abs_pressure: if pressure is reported in absolute or relative values
* @current_pressure: stores the most recent pressure value for this device
* @pressure_min: lowest possible pressure value
* @pressure_max: highest possible pressure value
*
* Structure used to store information about a touchscreen device.
*/
struct _GstXTouchDevice {
gchar *name;
gint id, pressure_valuator;
gboolean abs_pressure;
gdouble current_pressure, pressure_min, pressure_max;
};
/**
* 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
* @last_touch: timestamp of the last received touch event
* @touch_devices: list of known touchscreen devices
* @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
* @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;
GstBuffer *cur_image;
GThread *event_thread;
gboolean running;
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GstVideoInfo info;
Convert elements to use fractions for their framerate. Original commit message from CVS: * ext/libvisual/visual.c: (gst_visual_src_setcaps), (get_buffer), (gst_visual_chain): * ext/ogg/gstogmparse.c: (gst_ogm_parse_chain): * ext/theora/theoradec.c: (theora_handle_type_packet): * ext/theora/theoraenc.c: (theora_enc_sink_setcaps), (theora_enc_chain): * gst-libs/gst/riff/riff-media.c: (gst_riff_create_video_caps): * gst-libs/gst/video/video.c: (gst_video_frame_rate): * gst-libs/gst/video/video.h: * gst/ffmpegcolorspace/avcodec.h: * gst/ffmpegcolorspace/gstffmpegcodecmap.c: (gst_ffmpeg_caps_to_pixfmt): * gst/ffmpegcolorspace/gstffmpegcolorspace.c: (gst_ffmpegcsp_set_caps): * gst/videorate/gstvideorate.c: (gst_videorate_transformcaps), (gst_videorate_setcaps), (gst_videorate_blank_data), (gst_videorate_chain): * gst/videotestsrc/gstvideotestsrc.c: (gst_videotestsrc_src_fixate), (gst_videotestsrc_getcaps), (gst_videotestsrc_parse_caps), (gst_videotestsrc_setcaps), (gst_videotestsrc_event), (gst_videotestsrc_create): * gst/videotestsrc/gstvideotestsrc.h: * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_setcaps), (gst_ximagesink_change_state), (gst_ximagesink_get_times), (gst_ximagesink_init): * sys/ximage/ximagesink.h: * sys/xvimage/xvimagesink.c: (gst_xvimagesink_get_xv_support), (gst_xvimagesink_setcaps), (gst_xvimagesink_change_state), (gst_xvimagesink_get_times), (gst_xvimagesink_init): * sys/xvimage/xvimagesink.h: Convert elements to use fractions for their framerate. V4L elements to come later tonight.
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/* Framerate numerator and denominator */
gint fps_n;
gint fps_d;
#ifdef HAVE_XI2
Time last_touch;
GArray *touch_devices;
#endif
GMutex x_lock;
GMutex flow_lock;
/* object-set pixel aspect ratio */
GValue *par;
/* the buffer pool */
GstBufferPool *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_x_image_sink_get_type (void);
GST_ELEMENT_REGISTER_DECLARE (ximagesink);
G_END_DECLS
#endif /* __GST_X_IMAGE_SINK_H__ */