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0ccab4d247
Original commit message from CVS: Patch by: Tommi Myöhänen <ext-tommi dot myohanen at nokia dot com> * sys/ximage/ximagesink.c: (gst_ximagesink_xcontext_get), (gst_ximagesink_change_state): * sys/xvimage/xvimagesink.c: (gst_xvimagesink_xcontext_get): Don't leak the PAR on errors. Fixes #496731.
3243 lines
104 KiB
C
3243 lines
104 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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/**
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* SECTION:element-xvimagesink
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*
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* <refsect2>
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* <para>
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* XvImageSink renders video frames to a drawable (XWindow) on a local display
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* using the XVideo extension. Rendering to a remote display is theorically
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* possible but i doubt that the XVideo extension is actually available when
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* connecting to a remote display. This element can receive a Window ID from the
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* application through the XOverlay interface and will then render video frames
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* in this drawable. If no Window ID was provided by the application, the
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* element will create its own internal window and render into it.
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* </para>
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* <title>Scaling</title>
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* <para>
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* The XVideo extension, when it's available, handles hardware accelerated
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* scaling of video frames. This means that the element will just accept
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* incoming video frames no matter their geometry and will then put them to the
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* drawable scaling them on the fly. Using the
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* <link linkend="GstXvImageSink--force-aspect-ratio">force-aspect-ratio</link>
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* property it is possible to enforce scaling with a constant aspect ratio,
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* which means drawing black borders around the video frame.
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* </para>
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* <title>Events</title>
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* <para>
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* XvImageSink creates a thread to handle events coming from the drawable. There
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* are several kind of events that can be grouped in 2 big categories: input
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* events and window state related events. Input events will be translated to
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* navigation events and pushed upstream for other elements to react on them.
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* This includes events such as pointer moves, key press/release, clicks etc...
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* Other events are used to handle the drawable appearance even when the data
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* is not flowing (GST_STATE_PAUSED). That means that even when the element is
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* paused, it will receive expose events from the drawable and draw the latest
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* frame with correct borders/aspect-ratio.
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* </para>
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* <title>Pixel aspect ratio</title>
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* <para>
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* When changing state to GST_STATE_READY, XvImageSink will open a connection to
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* the display specified in the
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* <link linkend="GstXvImageSink--display">display</link> property or the
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* default display if nothing specified. Once this connection is open it will
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* inspect the display configuration including the physical display geometry and
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* then calculate the pixel aspect ratio. When receiving video frames with a
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* different pixel aspect ratio, XvImageSink will use hardware scaling to
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* display the video frames correctly on display's pixel aspect ratio.
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* Sometimes the calculated pixel aspect ratio can be wrong, it is
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* then possible to enforce a specific pixel aspect ratio using the
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* <link linkend="GstXvImageSink--pixel-aspect-ratio">pixel-aspect-ratio</link>
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* property.
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* </para>
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* <title>Examples</title>
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* <para>
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* Here is a simple pipeline to test hardware scaling :
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* <programlisting>
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* gst-launch -v videotestsrc ! xvimagesink
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* </programlisting>
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* When the test video signal appears you can resize the window and see that
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* video frames are scaled through hardware (no extra CPU cost). You can try
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* again setting the force-aspect-ratio property to true and observe the borders
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* drawn around the scaled image respecting aspect ratio.
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* <programlisting>
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* gst-launch -v videotestsrc ! xvimagesink force-aspect-ratio=true
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* </programlisting>
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* </para>
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* <para>
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* Here is a simple pipeline to test navigation events :
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* <programlisting>
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* gst-launch -v videotestsrc ! navigationtest ! xvimagesink
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* </programlisting>
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* While moving the mouse pointer over the test signal you will see a black box
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* following the mouse pointer. If you press the mouse button somewhere on the
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* video and release it somewhere else a green box will appear where you pressed
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* the button and a red one where you released it. (The navigationtest element
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* is part of gst-plugins-good.) You can observe here that even if the images
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* are scaled through hardware the pointer coordinates are converted back to the
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* original video frame geometry so that the box can be drawn to the correct
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* position. This also handles borders correctly, limiting coordinates to the
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* image area
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* </para>
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* <para>
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* Here is a simple pipeline to test pixel aspect ratio :
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* <programlisting>
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* gst-launch -v videotestsrc ! video/x-raw-yuv, pixel-aspect-ratio=(fraction)4/3 ! xvimagesink
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* </programlisting>
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* This is faking a 4/3 pixel aspect ratio caps on video frames produced by
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* videotestsrc, in most cases the pixel aspect ratio of the display will be
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* 1/1. This means that XvImageSink will have to do the scaling to convert
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* incoming frames to a size that will match the display pixel aspect ratio
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* (from 320x240 to 320x180 in this case). Note that you might have to escape
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* some characters for your shell like '\(fraction\)'.
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* </para>
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* <para>
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* Here is a test pipeline to test the colorbalance interface :
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* <programlisting>
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* gst-launch -v videotestsrc ! xvimagesink hue=100 saturation=-100 brightness=100
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* </programlisting>
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* </para>
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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/* Our interfaces */
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#include <gst/interfaces/navigation.h>
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#include <gst/interfaces/xoverlay.h>
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#include <gst/interfaces/colorbalance.h>
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#include <gst/interfaces/propertyprobe.h>
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/* Helper functions */
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#include <gst/video/video.h>
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/* Object header */
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#include "xvimagesink.h"
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/* Debugging category */
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#include <gst/gstinfo.h>
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GST_DEBUG_CATEGORY_STATIC (gst_debug_xvimagesink);
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#define GST_CAT_DEFAULT gst_debug_xvimagesink
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typedef struct
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{
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unsigned long flags;
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unsigned long functions;
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unsigned long decorations;
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long input_mode;
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unsigned long status;
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}
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MotifWmHints, MwmHints;
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#define MWM_HINTS_DECORATIONS (1L << 1)
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static void gst_xvimagesink_reset (GstXvImageSink * xvimagesink);
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static GstBufferClass *xvimage_buffer_parent_class = NULL;
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static void gst_xvimage_buffer_finalize (GstXvImageBuffer * xvimage);
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static void gst_xvimagesink_xwindow_update_geometry (GstXvImageSink *
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xvimagesink, GstXWindow * xwindow);
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static gint gst_xvimagesink_get_format_from_caps (GstXvImageSink * xvimagesink,
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GstCaps * caps);
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static void gst_xvimagesink_expose (GstXOverlay * overlay);
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/* ElementFactory information */
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static const GstElementDetails gst_xvimagesink_details =
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GST_ELEMENT_DETAILS ("Video sink",
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"Sink/Video",
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"A Xv based videosink",
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"Julien Moutte <julien@moutte.net>");
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/* Default template - initiated with class struct to allow gst-register to work
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without X running */
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static GstStaticPadTemplate gst_xvimagesink_sink_template_factory =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw-rgb, "
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"framerate = (fraction) [ 0, MAX ], "
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"width = (int) [ 1, MAX ], "
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"height = (int) [ 1, MAX ]; "
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"video/x-raw-yuv, "
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"framerate = (fraction) [ 0, MAX ], "
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"width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
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);
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enum
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{
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ARG_0,
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ARG_CONTRAST,
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ARG_BRIGHTNESS,
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ARG_HUE,
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ARG_SATURATION,
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ARG_DISPLAY,
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ARG_SYNCHRONOUS,
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ARG_PIXEL_ASPECT_RATIO,
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ARG_FORCE_ASPECT_RATIO,
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ARG_HANDLE_EVENTS,
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ARG_DEVICE,
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ARG_DEVICE_NAME,
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ARG_HANDLE_EXPOSE,
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ARG_DOUBLE_BUFFER
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};
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static GstVideoSinkClass *parent_class = NULL;
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/* ============================================================= */
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/* */
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/* Private Methods */
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/* */
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/* ============================================================= */
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/* xvimage buffers */
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#define GST_TYPE_XVIMAGE_BUFFER (gst_xvimage_buffer_get_type())
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#define GST_IS_XVIMAGE_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_XVIMAGE_BUFFER))
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#define GST_XVIMAGE_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_XVIMAGE_BUFFER, GstXvImageBuffer))
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/* This function destroys a GstXvImage handling XShm availability */
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static void
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gst_xvimage_buffer_destroy (GstXvImageBuffer * xvimage)
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{
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GstXvImageSink *xvimagesink;
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GST_DEBUG_OBJECT (xvimage, "Destroying buffer");
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xvimagesink = xvimage->xvimagesink;
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if (G_UNLIKELY (xvimagesink == NULL))
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goto no_sink;
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g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
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GST_OBJECT_LOCK (xvimagesink);
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/* If the destroyed image is the current one we destroy our reference too */
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if (xvimagesink->cur_image == xvimage)
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xvimagesink->cur_image = NULL;
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/* We might have some buffers destroyed after changing state to NULL */
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if (xvimagesink->xcontext == NULL) {
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GST_DEBUG_OBJECT (xvimagesink, "Destroying XvImage after Xcontext");
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#ifdef HAVE_XSHM
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/* Need to free the shared memory segment even if the x context
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* was already cleaned up */
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if (xvimage->SHMInfo.shmaddr != ((void *) -1)) {
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shmdt (xvimage->SHMInfo.shmaddr);
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}
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#endif
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goto beach;
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}
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g_mutex_lock (xvimagesink->x_lock);
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#ifdef HAVE_XSHM
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if (xvimagesink->xcontext->use_xshm) {
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if (xvimage->SHMInfo.shmaddr != ((void *) -1)) {
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GST_DEBUG_OBJECT (xvimagesink, "XServer ShmDetaching from 0x%x id 0x%lx",
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xvimage->SHMInfo.shmid, xvimage->SHMInfo.shmseg);
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XShmDetach (xvimagesink->xcontext->disp, &xvimage->SHMInfo);
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XSync (xvimagesink->xcontext->disp, FALSE);
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shmdt (xvimage->SHMInfo.shmaddr);
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}
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if (xvimage->xvimage)
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XFree (xvimage->xvimage);
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} else
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#endif /* HAVE_XSHM */
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{
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if (xvimage->xvimage) {
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if (xvimage->xvimage->data) {
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g_free (xvimage->xvimage->data);
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}
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XFree (xvimage->xvimage);
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}
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}
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XSync (xvimagesink->xcontext->disp, FALSE);
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g_mutex_unlock (xvimagesink->x_lock);
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beach:
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GST_OBJECT_UNLOCK (xvimagesink);
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xvimage->xvimagesink = NULL;
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gst_object_unref (xvimagesink);
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GST_MINI_OBJECT_CLASS (xvimage_buffer_parent_class)->
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finalize (GST_MINI_OBJECT (xvimage));
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return;
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no_sink:
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{
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GST_WARNING ("no sink found");
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return;
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}
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}
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static void
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gst_xvimage_buffer_finalize (GstXvImageBuffer * xvimage)
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{
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GstXvImageSink *xvimagesink;
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gboolean running;
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xvimagesink = xvimage->xvimagesink;
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if (G_UNLIKELY (xvimagesink == NULL))
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goto no_sink;
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g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
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GST_OBJECT_LOCK (xvimagesink);
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running = xvimagesink->running;
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GST_OBJECT_UNLOCK (xvimagesink);
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/* If our geometry changed we can't reuse that image. */
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if (running == FALSE) {
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GST_LOG_OBJECT (xvimage, "destroy image as sink is shutting down");
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gst_xvimage_buffer_destroy (xvimage);
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} else if ((xvimage->width != xvimagesink->video_width) ||
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(xvimage->height != xvimagesink->video_height)) {
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GST_LOG_OBJECT (xvimage,
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"destroy image as its size changed %dx%d vs current %dx%d",
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xvimage->width, xvimage->height,
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xvimagesink->video_width, xvimagesink->video_height);
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gst_xvimage_buffer_destroy (xvimage);
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} else {
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/* In that case we can reuse the image and add it to our image pool. */
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GST_LOG_OBJECT (xvimage, "recycling image in pool");
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/* need to increment the refcount again to recycle */
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gst_buffer_ref (GST_BUFFER (xvimage));
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g_mutex_lock (xvimagesink->pool_lock);
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xvimagesink->image_pool = g_slist_prepend (xvimagesink->image_pool,
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xvimage);
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g_mutex_unlock (xvimagesink->pool_lock);
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}
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return;
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no_sink:
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{
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GST_WARNING ("no sink found");
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return;
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}
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}
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static void
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gst_xvimage_buffer_free (GstXvImageBuffer * xvimage)
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{
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/* make sure it is not recycled */
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xvimage->width = -1;
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xvimage->height = -1;
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gst_buffer_unref (GST_BUFFER (xvimage));
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}
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static void
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gst_xvimage_buffer_init (GstXvImageBuffer * xvimage, gpointer g_class)
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{
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#ifdef HAVE_XSHM
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xvimage->SHMInfo.shmaddr = ((void *) -1);
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xvimage->SHMInfo.shmid = -1;
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#endif
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}
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static void
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gst_xvimage_buffer_class_init (gpointer g_class, gpointer class_data)
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{
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GstMiniObjectClass *mini_object_class = GST_MINI_OBJECT_CLASS (g_class);
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xvimage_buffer_parent_class = g_type_class_peek_parent (g_class);
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mini_object_class->finalize = (GstMiniObjectFinalizeFunction)
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gst_xvimage_buffer_finalize;
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}
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GType
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gst_xvimage_buffer_get_type (void)
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{
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static GType _gst_xvimage_buffer_type;
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if (G_UNLIKELY (_gst_xvimage_buffer_type == 0)) {
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static const GTypeInfo xvimage_buffer_info = {
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sizeof (GstBufferClass),
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NULL,
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NULL,
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gst_xvimage_buffer_class_init,
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NULL,
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NULL,
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sizeof (GstXvImageBuffer),
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0,
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(GInstanceInitFunc) gst_xvimage_buffer_init,
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NULL
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};
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_gst_xvimage_buffer_type = g_type_register_static (GST_TYPE_BUFFER,
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"GstXvImageBuffer", &xvimage_buffer_info, 0);
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}
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return _gst_xvimage_buffer_type;
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}
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/* X11 stuff */
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#ifdef HAVE_XSHM
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static gboolean error_caught = FALSE;
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static int
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gst_xvimagesink_handle_xerror (Display * display, XErrorEvent * xevent)
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{
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char error_msg[1024];
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XGetErrorText (display, xevent->error_code, error_msg, 1024);
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GST_DEBUG ("xvimagesink triggered an XError. error: %s", error_msg);
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error_caught = TRUE;
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return 0;
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}
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/* This function checks that it is actually really possible to create an image
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using XShm */
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static gboolean
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gst_xvimagesink_check_xshm_calls (GstXContext * xcontext)
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{
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XvImage *xvimage;
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XShmSegmentInfo SHMInfo;
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gint size;
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int (*handler) (Display *, XErrorEvent *);
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gboolean result = FALSE;
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gboolean did_attach = FALSE;
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g_return_val_if_fail (xcontext != NULL, FALSE);
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/* Sync to ensure any older errors are already processed */
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XSync (xcontext->disp, FALSE);
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/* Set defaults so we don't free these later unnecessarily */
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SHMInfo.shmaddr = ((void *) -1);
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SHMInfo.shmid = -1;
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|
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/* Setting an error handler to catch failure */
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error_caught = FALSE;
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handler = XSetErrorHandler (gst_xvimagesink_handle_xerror);
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/* Trying to create a 1x1 picture */
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GST_DEBUG ("XvShmCreateImage of 1x1");
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xvimage = XvShmCreateImage (xcontext->disp, xcontext->xv_port_id,
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xcontext->im_format, NULL, 1, 1, &SHMInfo);
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/* Might cause an error, sync to ensure it is noticed */
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XSync (xcontext->disp, FALSE);
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if (!xvimage || error_caught) {
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GST_WARNING ("could not XvShmCreateImage a 1x1 image");
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goto beach;
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}
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size = xvimage->data_size;
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SHMInfo.shmid = shmget (IPC_PRIVATE, size, IPC_CREAT | 0777);
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if (SHMInfo.shmid == -1) {
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GST_WARNING ("could not get shared memory of %d bytes", size);
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goto beach;
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}
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SHMInfo.shmaddr = shmat (SHMInfo.shmid, 0, 0);
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if (SHMInfo.shmaddr == ((void *) -1)) {
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GST_WARNING ("Failed to shmat: %s", g_strerror (errno));
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/* Clean up the shared memory segment */
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shmctl (SHMInfo.shmid, IPC_RMID, 0);
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goto beach;
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}
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/* Delete the shared memory segment as soon as we manage to attach.
|
|
* This way, it will be deleted as soon as we detach later, and not
|
|
* leaked if we crash. */
|
|
shmctl (SHMInfo.shmid, IPC_RMID, 0);
|
|
|
|
xvimage->data = SHMInfo.shmaddr;
|
|
SHMInfo.readOnly = FALSE;
|
|
|
|
if (XShmAttach (xcontext->disp, &SHMInfo) == 0) {
|
|
GST_WARNING ("Failed to XShmAttach");
|
|
goto beach;
|
|
}
|
|
|
|
/* Sync to ensure we see any errors we caused */
|
|
XSync (xcontext->disp, FALSE);
|
|
|
|
GST_DEBUG ("XServer ShmAttached to 0x%x, id 0x%lx", SHMInfo.shmid,
|
|
SHMInfo.shmseg);
|
|
|
|
if (!error_caught) {
|
|
did_attach = TRUE;
|
|
/* store whether we succeeded in result */
|
|
result = TRUE;
|
|
}
|
|
|
|
beach:
|
|
/* Sync to ensure we swallow any errors we caused and reset error_caught */
|
|
XSync (xcontext->disp, FALSE);
|
|
|
|
error_caught = FALSE;
|
|
XSetErrorHandler (handler);
|
|
|
|
if (did_attach) {
|
|
GST_DEBUG ("XServer ShmDetaching from 0x%x id 0x%lx",
|
|
SHMInfo.shmid, SHMInfo.shmseg);
|
|
XShmDetach (xcontext->disp, &SHMInfo);
|
|
XSync (xcontext->disp, FALSE);
|
|
}
|
|
if (SHMInfo.shmaddr != ((void *) -1))
|
|
shmdt (SHMInfo.shmaddr);
|
|
if (xvimage)
|
|
XFree (xvimage);
|
|
return result;
|
|
}
|
|
#endif /* HAVE_XSHM */
|
|
|
|
/* This function handles GstXvImage creation depending on XShm availability */
|
|
static GstXvImageBuffer *
|
|
gst_xvimagesink_xvimage_new (GstXvImageSink * xvimagesink, GstCaps * caps)
|
|
{
|
|
GstXvImageBuffer *xvimage = NULL;
|
|
GstStructure *structure = NULL;
|
|
gboolean succeeded = FALSE;
|
|
int (*handler) (Display *, XErrorEvent *);
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), NULL);
|
|
|
|
xvimage = (GstXvImageBuffer *) gst_mini_object_new (GST_TYPE_XVIMAGE_BUFFER);
|
|
GST_DEBUG_OBJECT (xvimage, "Creating new XvImageBuffer");
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (!gst_structure_get_int (structure, "width", &xvimage->width) ||
|
|
!gst_structure_get_int (structure, "height", &xvimage->height)) {
|
|
GST_WARNING ("failed getting geometry from caps %" GST_PTR_FORMAT, caps);
|
|
}
|
|
|
|
GST_LOG_OBJECT (xvimagesink, "creating %dx%d", xvimage->width,
|
|
xvimage->height);
|
|
|
|
xvimage->im_format = gst_xvimagesink_get_format_from_caps (xvimagesink, caps);
|
|
if (xvimage->im_format == -1) {
|
|
GST_WARNING_OBJECT (xvimagesink, "failed to get format from caps %"
|
|
GST_PTR_FORMAT, caps);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height), ("Invalid input caps"));
|
|
goto beach_unlocked;
|
|
}
|
|
xvimage->xvimagesink = gst_object_ref (xvimagesink);
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
/* Setting an error handler to catch failure */
|
|
error_caught = FALSE;
|
|
handler = XSetErrorHandler (gst_xvimagesink_handle_xerror);
|
|
|
|
#ifdef HAVE_XSHM
|
|
if (xvimagesink->xcontext->use_xshm) {
|
|
int expected_size;
|
|
|
|
xvimage->xvimage = XvShmCreateImage (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->xv_port_id,
|
|
xvimage->im_format, NULL,
|
|
xvimage->width, xvimage->height, &xvimage->SHMInfo);
|
|
if (!xvimage->xvimage || error_caught) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
/* Reset error handler */
|
|
error_caught = FALSE;
|
|
XSetErrorHandler (handler);
|
|
/* Push an error */
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height),
|
|
("could not XvShmCreateImage a %dx%d image",
|
|
xvimage->width, xvimage->height));
|
|
goto beach_unlocked;
|
|
}
|
|
|
|
/* we have to use the returned data_size for our shm size */
|
|
xvimage->size = xvimage->xvimage->data_size;
|
|
GST_LOG_OBJECT (xvimagesink, "XShm image size is %" G_GSIZE_FORMAT,
|
|
xvimage->size);
|
|
|
|
/* calculate the expected size. This is only for sanity checking the
|
|
* number we get from X. */
|
|
switch (xvimage->im_format) {
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
expected_size =
|
|
GST_ROUND_UP_2 (xvimage->height) * GST_ROUND_UP_4 (xvimage->width);
|
|
expected_size +=
|
|
GST_ROUND_UP_2 (xvimage->height) * GST_ROUND_UP_8 (xvimage->width) /
|
|
2;
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
expected_size = xvimage->height * GST_ROUND_UP_4 (xvimage->width * 2);
|
|
break;
|
|
default:
|
|
expected_size = 0;
|
|
break;
|
|
}
|
|
if (expected_size != 0 && xvimage->size != expected_size) {
|
|
GST_WARNING_OBJECT (xvimagesink,
|
|
"unexpected XShm image size (got %" G_GSIZE_FORMAT ", expected %d)",
|
|
xvimage->size, expected_size);
|
|
}
|
|
|
|
xvimage->SHMInfo.shmid = shmget (IPC_PRIVATE, xvimage->size,
|
|
IPC_CREAT | 0777);
|
|
if (xvimage->SHMInfo.shmid == -1) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height),
|
|
("could not get shared memory of %" G_GSIZE_FORMAT " bytes",
|
|
xvimage->size));
|
|
goto beach_unlocked;
|
|
}
|
|
|
|
xvimage->SHMInfo.shmaddr = shmat (xvimage->SHMInfo.shmid, 0, 0);
|
|
if (xvimage->SHMInfo.shmaddr == ((void *) -1)) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height),
|
|
("Failed to shmat: %s", g_strerror (errno)));
|
|
/* Clean up the shared memory segment */
|
|
shmctl (xvimage->SHMInfo.shmid, IPC_RMID, 0);
|
|
goto beach_unlocked;
|
|
}
|
|
|
|
/* Delete the shared memory segment as soon as we manage to attach.
|
|
* This way, it will be deleted as soon as we detach later, and not
|
|
* leaked if we crash. */
|
|
shmctl (xvimage->SHMInfo.shmid, IPC_RMID, 0);
|
|
|
|
xvimage->xvimage->data = xvimage->SHMInfo.shmaddr;
|
|
xvimage->SHMInfo.readOnly = FALSE;
|
|
|
|
if (XShmAttach (xvimagesink->xcontext->disp, &xvimage->SHMInfo) == 0) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height), ("Failed to XShmAttach"));
|
|
goto beach_unlocked;
|
|
}
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
GST_DEBUG_OBJECT (xvimagesink, "XServer ShmAttached to 0x%x, id 0x%lx",
|
|
xvimage->SHMInfo.shmid, xvimage->SHMInfo.shmseg);
|
|
} else
|
|
#endif /* HAVE_XSHM */
|
|
{
|
|
xvimage->xvimage = XvCreateImage (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->xv_port_id,
|
|
xvimage->im_format, NULL, xvimage->width, xvimage->height);
|
|
if (!xvimage->xvimage || error_caught) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
/* Reset error handler */
|
|
error_caught = FALSE;
|
|
XSetErrorHandler (handler);
|
|
/* Push an error */
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create outputimage buffer of %dx%d pixels",
|
|
xvimage->width, xvimage->height),
|
|
("could not XvCreateImage a %dx%d image",
|
|
xvimage->width, xvimage->height));
|
|
goto beach_unlocked;
|
|
}
|
|
|
|
/* we have to use the returned data_size for our image size */
|
|
xvimage->size = xvimage->xvimage->data_size;
|
|
xvimage->xvimage->data = g_malloc (xvimage->size);
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
}
|
|
|
|
/* Reset error handler */
|
|
error_caught = FALSE;
|
|
XSetErrorHandler (handler);
|
|
|
|
succeeded = TRUE;
|
|
|
|
GST_BUFFER_DATA (xvimage) = (guchar *) xvimage->xvimage->data;
|
|
GST_BUFFER_SIZE (xvimage) = xvimage->size;
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
beach_unlocked:
|
|
if (!succeeded) {
|
|
gst_xvimage_buffer_free (xvimage);
|
|
xvimage = NULL;
|
|
}
|
|
|
|
return xvimage;
|
|
}
|
|
|
|
/* We are called with the x_lock taken */
|
|
static void
|
|
gst_xvimagesink_xwindow_draw_borders (GstXvImageSink * xvimagesink,
|
|
GstXWindow * xwindow, GstVideoRectangle rect)
|
|
{
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
g_return_if_fail (xwindow != NULL);
|
|
|
|
XSetForeground (xvimagesink->xcontext->disp, xwindow->gc,
|
|
xvimagesink->xcontext->black);
|
|
|
|
/* Left border */
|
|
if (rect.x > 0) {
|
|
XFillRectangle (xvimagesink->xcontext->disp, xwindow->win, xwindow->gc,
|
|
0, 0, rect.x, xwindow->height);
|
|
}
|
|
|
|
/* Right border */
|
|
if ((rect.x + rect.w) < xwindow->width) {
|
|
XFillRectangle (xvimagesink->xcontext->disp, xwindow->win, xwindow->gc,
|
|
rect.x + rect.w, 0, xwindow->width, xwindow->height);
|
|
}
|
|
|
|
/* Top border */
|
|
if (rect.y > 0) {
|
|
XFillRectangle (xvimagesink->xcontext->disp, xwindow->win, xwindow->gc,
|
|
0, 0, xwindow->width, rect.y);
|
|
}
|
|
|
|
/* Bottom border */
|
|
if ((rect.y + rect.h) < xwindow->height) {
|
|
XFillRectangle (xvimagesink->xcontext->disp, xwindow->win, xwindow->gc,
|
|
0, rect.y + rect.h, xwindow->width, xwindow->height);
|
|
}
|
|
}
|
|
|
|
/* This function puts a GstXvImage on a GstXvImageSink's window. Returns FALSE
|
|
* if no window was available */
|
|
static gboolean
|
|
gst_xvimagesink_xvimage_put (GstXvImageSink * xvimagesink,
|
|
GstXvImageBuffer * xvimage)
|
|
{
|
|
GstVideoRectangle src, dst, result;
|
|
gboolean draw_border = FALSE;
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), FALSE);
|
|
|
|
/* We take the flow_lock. If expose is in there we don't want to run
|
|
concurrently from the data flow thread */
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
|
|
if (G_UNLIKELY (xvimagesink->xwindow == NULL)) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Draw borders when displaying the first frame. After this
|
|
draw borders only on expose event or after a size change. */
|
|
if (!xvimagesink->cur_image || xvimagesink->draw_border) {
|
|
draw_border = TRUE;
|
|
xvimagesink->draw_border = FALSE;
|
|
}
|
|
|
|
/* Store a reference to the last image we put, lose the previous one */
|
|
if (xvimage && xvimagesink->cur_image != xvimage) {
|
|
if (xvimagesink->cur_image) {
|
|
GST_LOG_OBJECT (xvimagesink, "unreffing %p", xvimagesink->cur_image);
|
|
gst_buffer_unref (xvimagesink->cur_image);
|
|
}
|
|
GST_LOG_OBJECT (xvimagesink, "reffing %p as our current image", xvimage);
|
|
xvimagesink->cur_image =
|
|
GST_XVIMAGE_BUFFER (gst_buffer_ref (GST_BUFFER (xvimage)));
|
|
}
|
|
|
|
/* Expose sends a NULL image, we take the latest frame */
|
|
if (!xvimage) {
|
|
draw_border = TRUE;
|
|
if (xvimagesink->cur_image) {
|
|
xvimage = xvimagesink->cur_image;
|
|
} else {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
gst_xvimagesink_xwindow_update_geometry (xvimagesink, xvimagesink->xwindow);
|
|
|
|
/* We use the calculated geometry from _setcaps as a source to respect
|
|
source and screen pixel aspect ratios. */
|
|
src.w = GST_VIDEO_SINK_WIDTH (xvimagesink);
|
|
src.h = GST_VIDEO_SINK_HEIGHT (xvimagesink);
|
|
dst.w = xvimagesink->xwindow->width;
|
|
dst.h = xvimagesink->xwindow->height;
|
|
|
|
if (xvimagesink->keep_aspect) {
|
|
gst_video_sink_center_rect (src, dst, &result, TRUE);
|
|
} else {
|
|
result.x = result.y = 0;
|
|
result.w = dst.w;
|
|
result.h = dst.h;
|
|
}
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
if (draw_border) {
|
|
gst_xvimagesink_xwindow_draw_borders (xvimagesink, xvimagesink->xwindow,
|
|
result);
|
|
}
|
|
|
|
/* We scale to the window's geometry */
|
|
#ifdef HAVE_XSHM
|
|
if (xvimagesink->xcontext->use_xshm) {
|
|
GST_LOG_OBJECT (xvimagesink,
|
|
"XvShmPutImage with image %dx%d and window %dx%d, from xvimage %"
|
|
GST_PTR_FORMAT,
|
|
xvimage->width, xvimage->height,
|
|
xvimagesink->xwindow->width, xvimagesink->xwindow->height, xvimage);
|
|
|
|
XvShmPutImage (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->xv_port_id,
|
|
xvimagesink->xwindow->win,
|
|
xvimagesink->xwindow->gc, xvimage->xvimage,
|
|
0, 0, xvimage->width, xvimage->height,
|
|
result.x, result.y, result.w, result.h, FALSE);
|
|
} else
|
|
#endif /* HAVE_XSHM */
|
|
{
|
|
XvPutImage (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->xv_port_id,
|
|
xvimagesink->xwindow->win,
|
|
xvimagesink->xwindow->gc, xvimage->xvimage,
|
|
0, 0, xvimage->width, xvimage->height,
|
|
result.x, result.y, result.w, result.h);
|
|
}
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_xvimagesink_xwindow_decorate (GstXvImageSink * xvimagesink,
|
|
GstXWindow * window)
|
|
{
|
|
Atom hints_atom = None;
|
|
MotifWmHints *hints;
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), FALSE);
|
|
g_return_val_if_fail (window != NULL, FALSE);
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
hints_atom = XInternAtom (xvimagesink->xcontext->disp, "_MOTIF_WM_HINTS",
|
|
True);
|
|
if (hints_atom == None) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
return FALSE;
|
|
}
|
|
|
|
hints = g_malloc0 (sizeof (MotifWmHints));
|
|
|
|
hints->flags |= MWM_HINTS_DECORATIONS;
|
|
hints->decorations = 1 << 0;
|
|
|
|
XChangeProperty (xvimagesink->xcontext->disp, window->win,
|
|
hints_atom, hints_atom, 32, PropModeReplace,
|
|
(guchar *) hints, sizeof (MotifWmHints) / sizeof (long));
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_free (hints);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* This function handles a GstXWindow creation
|
|
* The width and height are the actual pixel size on the display */
|
|
static GstXWindow *
|
|
gst_xvimagesink_xwindow_new (GstXvImageSink * xvimagesink,
|
|
gint width, gint height)
|
|
{
|
|
GstXWindow *xwindow = NULL;
|
|
XGCValues values;
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), NULL);
|
|
|
|
xwindow = g_new0 (GstXWindow, 1);
|
|
|
|
xwindow->width = width;
|
|
xwindow->height = height;
|
|
xwindow->internal = TRUE;
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
xwindow->win = XCreateSimpleWindow (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->root,
|
|
0, 0, xwindow->width, xwindow->height,
|
|
0, 0, xvimagesink->xcontext->black);
|
|
|
|
/* We have to do that to prevent X from redrawing the background on
|
|
* ConfigureNotify. This takes away flickering of video when resizing. */
|
|
XSetWindowBackgroundPixmap (xvimagesink->xcontext->disp, xwindow->win, None);
|
|
|
|
if (xvimagesink->handle_events) {
|
|
Atom wm_delete;
|
|
|
|
XSelectInput (xvimagesink->xcontext->disp, xwindow->win, ExposureMask |
|
|
StructureNotifyMask | PointerMotionMask | KeyPressMask |
|
|
KeyReleaseMask | ButtonPressMask | ButtonReleaseMask);
|
|
|
|
/* Tell the window manager we'd like delete client messages instead of
|
|
* being killed */
|
|
wm_delete = XInternAtom (xvimagesink->xcontext->disp,
|
|
"WM_DELETE_WINDOW", True);
|
|
if (wm_delete != None) {
|
|
(void) XSetWMProtocols (xvimagesink->xcontext->disp, xwindow->win,
|
|
&wm_delete, 1);
|
|
}
|
|
}
|
|
|
|
xwindow->gc = XCreateGC (xvimagesink->xcontext->disp,
|
|
xwindow->win, 0, &values);
|
|
|
|
XMapRaised (xvimagesink->xcontext->disp, xwindow->win);
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
gst_xvimagesink_xwindow_decorate (xvimagesink, xwindow);
|
|
|
|
gst_x_overlay_got_xwindow_id (GST_X_OVERLAY (xvimagesink), xwindow->win);
|
|
|
|
return xwindow;
|
|
}
|
|
|
|
/* This function destroys a GstXWindow */
|
|
static void
|
|
gst_xvimagesink_xwindow_destroy (GstXvImageSink * xvimagesink,
|
|
GstXWindow * xwindow)
|
|
{
|
|
g_return_if_fail (xwindow != NULL);
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
/* If we did not create that window we just free the GC and let it live */
|
|
if (xwindow->internal)
|
|
XDestroyWindow (xvimagesink->xcontext->disp, xwindow->win);
|
|
else
|
|
XSelectInput (xvimagesink->xcontext->disp, xwindow->win, 0);
|
|
|
|
XFreeGC (xvimagesink->xcontext->disp, xwindow->gc);
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_free (xwindow);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_xwindow_update_geometry (GstXvImageSink * xvimagesink,
|
|
GstXWindow * xwindow)
|
|
{
|
|
XWindowAttributes attr;
|
|
|
|
g_return_if_fail (xwindow != NULL);
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
/* Update the window geometry */
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
XGetWindowAttributes (xvimagesink->xcontext->disp,
|
|
xvimagesink->xwindow->win, &attr);
|
|
|
|
xvimagesink->xwindow->width = attr.width;
|
|
xvimagesink->xwindow->height = attr.height;
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_xwindow_clear (GstXvImageSink * xvimagesink,
|
|
GstXWindow * xwindow)
|
|
{
|
|
g_return_if_fail (xwindow != NULL);
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
XvStopVideo (xvimagesink->xcontext->disp, xvimagesink->xcontext->xv_port_id,
|
|
xwindow->win);
|
|
|
|
XSetForeground (xvimagesink->xcontext->disp, xwindow->gc,
|
|
xvimagesink->xcontext->black);
|
|
|
|
XFillRectangle (xvimagesink->xcontext->disp, xwindow->win, xwindow->gc,
|
|
0, 0, xwindow->width, xwindow->height);
|
|
|
|
XSync (xvimagesink->xcontext->disp, FALSE);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
}
|
|
|
|
/* This function commits our internal colorbalance settings to our grabbed Xv
|
|
port. If the xcontext is not initialized yet it simply returns */
|
|
static void
|
|
gst_xvimagesink_update_colorbalance (GstXvImageSink * xvimagesink)
|
|
{
|
|
GList *channels = NULL;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
/* If we haven't initialized the X context we can't update anything */
|
|
if (xvimagesink->xcontext == NULL)
|
|
return;
|
|
|
|
/* For each channel of the colorbalance we calculate the correct value
|
|
doing range conversion and then set the Xv port attribute to match our
|
|
values. */
|
|
channels = xvimagesink->xcontext->channels_list;
|
|
|
|
while (channels) {
|
|
if (channels->data && GST_IS_COLOR_BALANCE_CHANNEL (channels->data)) {
|
|
GstColorBalanceChannel *channel = NULL;
|
|
Atom prop_atom;
|
|
gint value = 0;
|
|
gdouble convert_coef;
|
|
|
|
channel = GST_COLOR_BALANCE_CHANNEL (channels->data);
|
|
g_object_ref (channel);
|
|
|
|
/* Our range conversion coef */
|
|
convert_coef = (channel->max_value - channel->min_value) / 2000.0;
|
|
|
|
if (g_ascii_strcasecmp (channel->label, "XV_HUE") == 0) {
|
|
value = (xvimagesink->hue + 1000) * convert_coef + channel->min_value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_SATURATION") == 0) {
|
|
value = (xvimagesink->saturation + 1000) * convert_coef +
|
|
channel->min_value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_CONTRAST") == 0) {
|
|
value = (xvimagesink->contrast + 1000) * convert_coef +
|
|
channel->min_value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_BRIGHTNESS") == 0) {
|
|
value = (xvimagesink->brightness + 1000) * convert_coef +
|
|
channel->min_value;
|
|
} else {
|
|
g_warning ("got an unknown channel %s", channel->label);
|
|
g_object_unref (channel);
|
|
return;
|
|
}
|
|
|
|
/* Committing to Xv port */
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
prop_atom =
|
|
XInternAtom (xvimagesink->xcontext->disp, channel->label, True);
|
|
if (prop_atom != None) {
|
|
XvSetPortAttribute (xvimagesink->xcontext->disp,
|
|
xvimagesink->xcontext->xv_port_id, prop_atom, value);
|
|
}
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_object_unref (channel);
|
|
}
|
|
channels = g_list_next (channels);
|
|
}
|
|
}
|
|
|
|
/* This function handles XEvents that might be in the queue. It generates
|
|
GstEvent that will be sent upstream in the pipeline to handle interactivity
|
|
and navigation. It will also listen for configure events on the window to
|
|
trigger caps renegotiation so on the fly software scaling can work. */
|
|
static void
|
|
gst_xvimagesink_handle_xevents (GstXvImageSink * xvimagesink)
|
|
{
|
|
XEvent e;
|
|
guint pointer_x = 0, pointer_y = 0;
|
|
gboolean pointer_moved = FALSE;
|
|
gboolean exposed = FALSE, configured = FALSE;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
/* We get all pointer motion events, only the last position is
|
|
interesting. */
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
while (XCheckWindowEvent (xvimagesink->xcontext->disp,
|
|
xvimagesink->xwindow->win, PointerMotionMask, &e)) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
switch (e.type) {
|
|
case MotionNotify:
|
|
pointer_x = e.xmotion.x;
|
|
pointer_y = e.xmotion.y;
|
|
pointer_moved = TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
}
|
|
if (pointer_moved) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
GST_DEBUG ("xvimagesink pointer moved over window at %d,%d",
|
|
pointer_x, pointer_y);
|
|
gst_navigation_send_mouse_event (GST_NAVIGATION (xvimagesink),
|
|
"mouse-move", 0, e.xbutton.x, e.xbutton.y);
|
|
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
}
|
|
|
|
/* We get all events on our window to throw them upstream */
|
|
while (XCheckWindowEvent (xvimagesink->xcontext->disp,
|
|
xvimagesink->xwindow->win,
|
|
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask,
|
|
&e)) {
|
|
KeySym keysym;
|
|
|
|
/* We lock only for the X function call */
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
switch (e.type) {
|
|
case ButtonPress:
|
|
/* Mouse button pressed over our window. We send upstream
|
|
events for interactivity/navigation */
|
|
GST_DEBUG ("xvimagesink button %d pressed over window at %d,%d",
|
|
e.xbutton.button, e.xbutton.x, e.xbutton.y);
|
|
gst_navigation_send_mouse_event (GST_NAVIGATION (xvimagesink),
|
|
"mouse-button-press", e.xbutton.button, e.xbutton.x, e.xbutton.y);
|
|
break;
|
|
case ButtonRelease:
|
|
/* Mouse button released over our window. We send upstream
|
|
events for interactivity/navigation */
|
|
GST_DEBUG ("xvimagesink button %d released over window at %d,%d",
|
|
e.xbutton.button, e.xbutton.x, e.xbutton.y);
|
|
gst_navigation_send_mouse_event (GST_NAVIGATION (xvimagesink),
|
|
"mouse-button-release", e.xbutton.button, e.xbutton.x, e.xbutton.y);
|
|
break;
|
|
case KeyPress:
|
|
case KeyRelease:
|
|
/* Key pressed/released over our window. We send upstream
|
|
events for interactivity/navigation */
|
|
GST_DEBUG ("xvimagesink key %d pressed over window at %d,%d",
|
|
e.xkey.keycode, e.xkey.x, e.xkey.y);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
keysym = XKeycodeToKeysym (xvimagesink->xcontext->disp,
|
|
e.xkey.keycode, 0);
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
if (keysym != NoSymbol) {
|
|
char *key_str = NULL;
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
key_str = XKeysymToString (keysym);
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
gst_navigation_send_key_event (GST_NAVIGATION (xvimagesink),
|
|
e.type == KeyPress ? "key-press" : "key-release", key_str);
|
|
} else {
|
|
gst_navigation_send_key_event (GST_NAVIGATION (xvimagesink),
|
|
e.type == KeyPress ? "key-press" : "key-release", "unknown");
|
|
}
|
|
break;
|
|
default:
|
|
GST_DEBUG ("xvimagesink unhandled X event (%d)", e.type);
|
|
}
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
}
|
|
|
|
/* Handle Expose */
|
|
while (XCheckWindowEvent (xvimagesink->xcontext->disp,
|
|
xvimagesink->xwindow->win, ExposureMask | StructureNotifyMask, &e)) {
|
|
switch (e.type) {
|
|
case Expose:
|
|
exposed = TRUE;
|
|
break;
|
|
case ConfigureNotify:
|
|
configured = TRUE;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (xvimagesink->handle_expose && (exposed || configured)) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
gst_xvimagesink_expose (GST_X_OVERLAY (xvimagesink));
|
|
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
}
|
|
|
|
/* Handle Display events */
|
|
while (XPending (xvimagesink->xcontext->disp)) {
|
|
XNextEvent (xvimagesink->xcontext->disp, &e);
|
|
|
|
switch (e.type) {
|
|
case ClientMessage:{
|
|
Atom wm_delete;
|
|
|
|
wm_delete = XInternAtom (xvimagesink->xcontext->disp,
|
|
"WM_DELETE_WINDOW", True);
|
|
if (wm_delete != None && wm_delete == (Atom) e.xclient.data.l[0]) {
|
|
/* Handle window deletion by posting an error on the bus */
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, NOT_FOUND,
|
|
("Output window was closed"), (NULL));
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
gst_xvimagesink_xwindow_destroy (xvimagesink, xvimagesink->xwindow);
|
|
xvimagesink->xwindow = NULL;
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
}
|
|
|
|
static void
|
|
gst_lookup_xv_port_from_adaptor (GstXContext * xcontext,
|
|
XvAdaptorInfo * adaptors, int adaptor_no)
|
|
{
|
|
gint j;
|
|
|
|
/* Do we support XvImageMask ? */
|
|
if (!(adaptors[adaptor_no].type & XvImageMask))
|
|
return;
|
|
|
|
/* We found such an adaptor, looking for an available port */
|
|
for (j = 0; j < adaptors[adaptor_no].num_ports && !xcontext->xv_port_id; j++) {
|
|
/* We try to grab the port */
|
|
if (Success == XvGrabPort (xcontext->disp, adaptors[adaptor_no].base_id + j,
|
|
0)) {
|
|
xcontext->xv_port_id = adaptors[adaptor_no].base_id + j;
|
|
GST_DEBUG ("XV Adaptor %s with %ld ports", adaptors[adaptor_no].name,
|
|
adaptors[adaptor_no].num_ports);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* This function generates a caps with all supported format by the first
|
|
Xv grabable port we find. We store each one of the supported formats in a
|
|
format list and append the format to a newly created caps that we return
|
|
If this function does not return NULL because of an error, it also grabs
|
|
the port via XvGrabPort */
|
|
static GstCaps *
|
|
gst_xvimagesink_get_xv_support (GstXvImageSink * xvimagesink,
|
|
GstXContext * xcontext)
|
|
{
|
|
gint i;
|
|
XvAdaptorInfo *adaptors;
|
|
gint nb_formats;
|
|
XvImageFormatValues *formats = NULL;
|
|
guint nb_encodings;
|
|
XvEncodingInfo *encodings = NULL;
|
|
gulong max_w = G_MAXINT, max_h = G_MAXINT;
|
|
GstCaps *caps = NULL;
|
|
GstCaps *rgb_caps = NULL;
|
|
|
|
g_return_val_if_fail (xcontext != NULL, NULL);
|
|
|
|
/* First let's check that XVideo extension is available */
|
|
if (!XQueryExtension (xcontext->disp, "XVideo", &i, &i, &i)) {
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, SETTINGS,
|
|
("Could not initialise Xv output"),
|
|
("XVideo extension is not available"));
|
|
return NULL;
|
|
}
|
|
|
|
/* Then we get adaptors list */
|
|
if (Success != XvQueryAdaptors (xcontext->disp, xcontext->root,
|
|
&xcontext->nb_adaptors, &adaptors)) {
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, SETTINGS,
|
|
("Could not initialise Xv output"),
|
|
("Failed getting XV adaptors list"));
|
|
return NULL;
|
|
}
|
|
|
|
xcontext->xv_port_id = 0;
|
|
|
|
GST_DEBUG ("Found %u XV adaptor(s)", xcontext->nb_adaptors);
|
|
|
|
xcontext->adaptors =
|
|
(gchar **) g_malloc0 (xcontext->nb_adaptors * sizeof (gchar *));
|
|
|
|
/* Now fill up our adaptor name array */
|
|
for (i = 0; i < xcontext->nb_adaptors; i++) {
|
|
xcontext->adaptors[i] = g_strdup (adaptors[i].name);
|
|
}
|
|
|
|
if (xvimagesink->adaptor_no >= 0 &&
|
|
xvimagesink->adaptor_no < xcontext->nb_adaptors) {
|
|
/* Find xv port from user defined adaptor */
|
|
gst_lookup_xv_port_from_adaptor (xcontext, adaptors,
|
|
xvimagesink->adaptor_no);
|
|
}
|
|
|
|
if (!xcontext->xv_port_id) {
|
|
/* Now search for an adaptor that supports XvImageMask */
|
|
for (i = 0; i < xcontext->nb_adaptors && !xcontext->xv_port_id; i++) {
|
|
gst_lookup_xv_port_from_adaptor (xcontext, adaptors, i);
|
|
xvimagesink->adaptor_no = i;
|
|
}
|
|
}
|
|
|
|
XvFreeAdaptorInfo (adaptors);
|
|
|
|
if (!xcontext->xv_port_id) {
|
|
xvimagesink->adaptor_no = -1;
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, BUSY,
|
|
("Could not initialise Xv output"), ("No port available"));
|
|
return NULL;
|
|
}
|
|
|
|
/* Set XV_AUTOPAINT_COLORKEY and XV_DOUBLE_BUFFER and XV_COLORKEY */
|
|
{
|
|
int count;
|
|
XvAttribute *const attr = XvQueryPortAttributes (xcontext->disp,
|
|
xcontext->xv_port_id, &count);
|
|
static const char autopaint[] = "XV_AUTOPAINT_COLORKEY";
|
|
static const char dbl_buffer[] = "XV_DOUBLE_BUFFER";
|
|
static const char colorkey[] = "XV_COLORKEY";
|
|
|
|
for (i = 0; i < count; i++)
|
|
if (!strcmp (attr[i].name, autopaint)) {
|
|
const Atom atom = XInternAtom (xcontext->disp, autopaint, False);
|
|
|
|
XvSetPortAttribute (xcontext->disp, xcontext->xv_port_id, atom, 1);
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < count; i++)
|
|
if (!strcmp (attr[i].name, dbl_buffer)) {
|
|
const Atom atom = XInternAtom (xcontext->disp, dbl_buffer, False);
|
|
|
|
XvSetPortAttribute (xcontext->disp, xcontext->xv_port_id, atom,
|
|
(xvimagesink->double_buffer ? 1 : 0));
|
|
break;
|
|
}
|
|
|
|
/* Set the colorkey to something that is dark but hopefully won't randomly
|
|
* appear on the screen elsewhere (ie not black or greys) */
|
|
for (i = 0; i < count; i++)
|
|
if (!strcmp (attr[i].name, colorkey)) {
|
|
const Atom atom = XInternAtom (xcontext->disp, colorkey, False);
|
|
guint32 ckey;
|
|
guint32 keymask;
|
|
gint bits;
|
|
gboolean set_attr = TRUE;
|
|
|
|
/* Count the bits in the colorkey mask 'max' value */
|
|
bits = 0;
|
|
for (keymask = (guint32) (attr[i].max_value);
|
|
keymask != 0; keymask >>= 1)
|
|
bits++;
|
|
|
|
/* set a colorkey in the right format RGB565/RGB888
|
|
* note that the colorkey is independent from the display
|
|
* depth (xcontext->depth). We only handle these 2 cases, because
|
|
* they're the only types of devices we've encountered. If we don't
|
|
* recognise it, leave it alone */
|
|
if (bits == 16)
|
|
ckey = (1 << 10) | (2 << 5) | 3;
|
|
else if (bits == 24 || bits == 32)
|
|
ckey = (1 << 16) | (2 << 8) | 3;
|
|
else
|
|
set_attr = FALSE;
|
|
|
|
|
|
if (set_attr) {
|
|
ckey = CLAMP (ckey, (guint32) attr[i].min_value,
|
|
(guint32) attr[i].max_value);
|
|
GST_LOG_OBJECT (xvimagesink,
|
|
"Setting color key for display depth %d to 0x%x",
|
|
xcontext->depth, ckey);
|
|
|
|
XvSetPortAttribute (xcontext->disp, xcontext->xv_port_id, atom,
|
|
(gint) ckey);
|
|
} else {
|
|
GST_LOG_OBJECT (xvimagesink,
|
|
"Unknown bit depth for Xv Colorkey - not adjusting ");
|
|
}
|
|
break;
|
|
}
|
|
|
|
XFree (attr);
|
|
}
|
|
|
|
/* Get the list of encodings supported by the adapter and look for the
|
|
* XV_IMAGE encoding so we can determine the maximum width and height
|
|
* supported */
|
|
XvQueryEncodings (xcontext->disp, xcontext->xv_port_id, &nb_encodings,
|
|
&encodings);
|
|
|
|
for (i = 0; i < nb_encodings; i++) {
|
|
GST_LOG_OBJECT (xvimagesink,
|
|
"Encoding %d, name %s, max wxh %lux%lu rate %d/%d",
|
|
i, encodings[i].name, encodings[i].width, encodings[i].height,
|
|
encodings[i].rate.numerator, encodings[i].rate.denominator);
|
|
if (strcmp (encodings[i].name, "XV_IMAGE") == 0) {
|
|
max_w = encodings[i].width;
|
|
max_h = encodings[i].height;
|
|
}
|
|
}
|
|
|
|
XvFreeEncodingInfo (encodings);
|
|
|
|
/* We get all image formats supported by our port */
|
|
formats = XvListImageFormats (xcontext->disp,
|
|
xcontext->xv_port_id, &nb_formats);
|
|
caps = gst_caps_new_empty ();
|
|
for (i = 0; i < nb_formats; i++) {
|
|
GstCaps *format_caps = NULL;
|
|
gboolean is_rgb_format = FALSE;
|
|
|
|
/* We set the image format of the xcontext to an existing one. This
|
|
is just some valid image format for making our xshm calls check before
|
|
caps negotiation really happens. */
|
|
xcontext->im_format = formats[i].id;
|
|
|
|
switch (formats[i].type) {
|
|
case XvRGB:
|
|
{
|
|
XvImageFormatValues *fmt = &(formats[i]);
|
|
gint endianness = G_BIG_ENDIAN;
|
|
|
|
if (fmt->byte_order == LSBFirst) {
|
|
/* our caps system handles 24/32bpp RGB as big-endian. */
|
|
if (fmt->bits_per_pixel == 24 || fmt->bits_per_pixel == 32) {
|
|
fmt->red_mask = GUINT32_TO_BE (fmt->red_mask);
|
|
fmt->green_mask = GUINT32_TO_BE (fmt->green_mask);
|
|
fmt->blue_mask = GUINT32_TO_BE (fmt->blue_mask);
|
|
|
|
if (fmt->bits_per_pixel == 24) {
|
|
fmt->red_mask >>= 8;
|
|
fmt->green_mask >>= 8;
|
|
fmt->blue_mask >>= 8;
|
|
}
|
|
} else
|
|
endianness = G_LITTLE_ENDIAN;
|
|
}
|
|
|
|
format_caps = gst_caps_new_simple ("video/x-raw-rgb",
|
|
"endianness", G_TYPE_INT, endianness,
|
|
"depth", G_TYPE_INT, fmt->depth,
|
|
"bpp", G_TYPE_INT, fmt->bits_per_pixel,
|
|
"red_mask", G_TYPE_INT, fmt->red_mask,
|
|
"green_mask", G_TYPE_INT, fmt->green_mask,
|
|
"blue_mask", G_TYPE_INT, fmt->blue_mask,
|
|
"width", GST_TYPE_INT_RANGE, 1, max_w,
|
|
"height", GST_TYPE_INT_RANGE, 1, max_h,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
|
|
is_rgb_format = TRUE;
|
|
break;
|
|
}
|
|
case XvYUV:
|
|
format_caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, formats[i].id,
|
|
"width", GST_TYPE_INT_RANGE, 1, max_w,
|
|
"height", GST_TYPE_INT_RANGE, 1, max_h,
|
|
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
if (format_caps) {
|
|
GstXvImageFormat *format = NULL;
|
|
|
|
format = g_new0 (GstXvImageFormat, 1);
|
|
if (format) {
|
|
format->format = formats[i].id;
|
|
format->caps = gst_caps_copy (format_caps);
|
|
xcontext->formats_list = g_list_append (xcontext->formats_list, format);
|
|
}
|
|
|
|
if (is_rgb_format) {
|
|
if (rgb_caps == NULL)
|
|
rgb_caps = format_caps;
|
|
else
|
|
gst_caps_append (rgb_caps, format_caps);
|
|
} else
|
|
gst_caps_append (caps, format_caps);
|
|
}
|
|
}
|
|
|
|
/* Collected all caps into either the caps or rgb_caps structures.
|
|
* Append rgb_caps on the end of YUV, so that YUV is always preferred */
|
|
if (rgb_caps)
|
|
gst_caps_append (caps, rgb_caps);
|
|
|
|
if (formats)
|
|
XFree (formats);
|
|
|
|
GST_DEBUG ("Generated the following caps: %" GST_PTR_FORMAT, caps);
|
|
|
|
if (gst_caps_is_empty (caps)) {
|
|
gst_caps_unref (caps);
|
|
XvUngrabPort (xcontext->disp, xcontext->xv_port_id, 0);
|
|
GST_ELEMENT_ERROR (xvimagesink, STREAM, WRONG_TYPE, (NULL),
|
|
("No supported format found"));
|
|
return NULL;
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static gpointer
|
|
gst_xvimagesink_event_thread (GstXvImageSink * xvimagesink)
|
|
{
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), NULL);
|
|
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
while (xvimagesink->running) {
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
|
|
if (xvimagesink->xwindow) {
|
|
gst_xvimagesink_handle_xevents (xvimagesink);
|
|
}
|
|
g_usleep (50000);
|
|
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
}
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/* This function calculates the pixel aspect ratio based on the properties
|
|
* in the xcontext structure and stores it there. */
|
|
static void
|
|
gst_xvimagesink_calculate_pixel_aspect_ratio (GstXContext * xcontext)
|
|
{
|
|
static const gint par[][2] = {
|
|
{1, 1}, /* regular screen */
|
|
{16, 15}, /* PAL TV */
|
|
{11, 10}, /* 525 line Rec.601 video */
|
|
{54, 59}, /* 625 line Rec.601 video */
|
|
{64, 45}, /* 1280x1024 on 16:9 display */
|
|
{5, 3}, /* 1280x1024 on 4:3 display */
|
|
{4, 3} /* 800x600 on 16:9 display */
|
|
};
|
|
gint i;
|
|
gint index;
|
|
gdouble ratio;
|
|
gdouble delta;
|
|
|
|
#define DELTA(idx) (ABS (ratio - ((gdouble) par[idx][0] / par[idx][1])))
|
|
|
|
/* first calculate the "real" ratio based on the X values;
|
|
* which is the "physical" w/h divided by the w/h in pixels of the display */
|
|
ratio = (gdouble) (xcontext->widthmm * xcontext->height)
|
|
/ (xcontext->heightmm * xcontext->width);
|
|
|
|
/* DirectFB's X in 720x576 reports the physical dimensions wrong, so
|
|
* override here */
|
|
if (xcontext->width == 720 && xcontext->height == 576) {
|
|
ratio = 4.0 * 576 / (3.0 * 720);
|
|
}
|
|
GST_DEBUG ("calculated pixel aspect ratio: %f", ratio);
|
|
/* now find the one from par[][2] with the lowest delta to the real one */
|
|
delta = DELTA (0);
|
|
index = 0;
|
|
|
|
for (i = 1; i < sizeof (par) / (sizeof (gint) * 2); ++i) {
|
|
gdouble this_delta = DELTA (i);
|
|
|
|
if (this_delta < delta) {
|
|
index = i;
|
|
delta = this_delta;
|
|
}
|
|
}
|
|
|
|
GST_DEBUG ("Decided on index %d (%d/%d)", index,
|
|
par[index][0], par[index][1]);
|
|
|
|
g_free (xcontext->par);
|
|
xcontext->par = g_new0 (GValue, 1);
|
|
g_value_init (xcontext->par, GST_TYPE_FRACTION);
|
|
gst_value_set_fraction (xcontext->par, par[index][0], par[index][1]);
|
|
GST_DEBUG ("set xcontext PAR to %d/%d",
|
|
gst_value_get_fraction_numerator (xcontext->par),
|
|
gst_value_get_fraction_denominator (xcontext->par));
|
|
}
|
|
|
|
/* This function gets the X Display and global info about it. Everything is
|
|
stored in our object and will be cleaned when the object is disposed. Note
|
|
here that caps for supported format are generated without any window or
|
|
image creation */
|
|
static GstXContext *
|
|
gst_xvimagesink_xcontext_get (GstXvImageSink * xvimagesink)
|
|
{
|
|
GstXContext *xcontext = NULL;
|
|
XPixmapFormatValues *px_formats = NULL;
|
|
gint nb_formats = 0, i, j, N_attr;
|
|
XvAttribute *xv_attr;
|
|
Atom prop_atom;
|
|
char *channels[4] = { "XV_HUE", "XV_SATURATION",
|
|
"XV_BRIGHTNESS", "XV_CONTRAST"
|
|
};
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), NULL);
|
|
|
|
xcontext = g_new0 (GstXContext, 1);
|
|
xcontext->im_format = 0;
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
xcontext->disp = XOpenDisplay (xvimagesink->display_name);
|
|
|
|
if (!xcontext->disp) {
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_free (xcontext);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Could not initialise Xv output"), ("Could not open display"));
|
|
return NULL;
|
|
}
|
|
|
|
xcontext->screen = DefaultScreenOfDisplay (xcontext->disp);
|
|
xcontext->screen_num = DefaultScreen (xcontext->disp);
|
|
xcontext->visual = DefaultVisual (xcontext->disp, xcontext->screen_num);
|
|
xcontext->root = DefaultRootWindow (xcontext->disp);
|
|
xcontext->white = XWhitePixel (xcontext->disp, xcontext->screen_num);
|
|
xcontext->black = XBlackPixel (xcontext->disp, xcontext->screen_num);
|
|
xcontext->depth = DefaultDepthOfScreen (xcontext->screen);
|
|
|
|
xcontext->width = DisplayWidth (xcontext->disp, xcontext->screen_num);
|
|
xcontext->height = DisplayHeight (xcontext->disp, xcontext->screen_num);
|
|
xcontext->widthmm = DisplayWidthMM (xcontext->disp, xcontext->screen_num);
|
|
xcontext->heightmm = DisplayHeightMM (xcontext->disp, xcontext->screen_num);
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink, "X reports %dx%d pixels and %d mm x %d mm",
|
|
xcontext->width, xcontext->height, xcontext->widthmm, xcontext->heightmm);
|
|
|
|
gst_xvimagesink_calculate_pixel_aspect_ratio (xcontext);
|
|
/* We get supported pixmap formats at supported depth */
|
|
px_formats = XListPixmapFormats (xcontext->disp, &nb_formats);
|
|
|
|
if (!px_formats) {
|
|
XCloseDisplay (xcontext->disp);
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_free (xcontext->par);
|
|
g_free (xcontext);
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, SETTINGS,
|
|
("Could not initialise Xv output"), ("Could not get pixel formats"));
|
|
return NULL;
|
|
}
|
|
|
|
/* We get bpp value corresponding to our running depth */
|
|
for (i = 0; i < nb_formats; i++) {
|
|
if (px_formats[i].depth == xcontext->depth)
|
|
xcontext->bpp = px_formats[i].bits_per_pixel;
|
|
}
|
|
|
|
XFree (px_formats);
|
|
|
|
xcontext->endianness =
|
|
(ImageByteOrder (xcontext->disp) ==
|
|
LSBFirst) ? G_LITTLE_ENDIAN : G_BIG_ENDIAN;
|
|
|
|
/* our caps system handles 24/32bpp RGB as big-endian. */
|
|
if ((xcontext->bpp == 24 || xcontext->bpp == 32) &&
|
|
xcontext->endianness == G_LITTLE_ENDIAN) {
|
|
xcontext->endianness = G_BIG_ENDIAN;
|
|
xcontext->visual->red_mask = GUINT32_TO_BE (xcontext->visual->red_mask);
|
|
xcontext->visual->green_mask = GUINT32_TO_BE (xcontext->visual->green_mask);
|
|
xcontext->visual->blue_mask = GUINT32_TO_BE (xcontext->visual->blue_mask);
|
|
if (xcontext->bpp == 24) {
|
|
xcontext->visual->red_mask >>= 8;
|
|
xcontext->visual->green_mask >>= 8;
|
|
xcontext->visual->blue_mask >>= 8;
|
|
}
|
|
}
|
|
|
|
xcontext->caps = gst_xvimagesink_get_xv_support (xvimagesink, xcontext);
|
|
|
|
if (!xcontext->caps) {
|
|
XCloseDisplay (xcontext->disp);
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
g_free (xcontext->par);
|
|
g_free (xcontext);
|
|
/* GST_ELEMENT_ERROR is thrown by gst_xvimagesink_get_xv_support */
|
|
return NULL;
|
|
}
|
|
#ifdef HAVE_XSHM
|
|
/* Search for XShm extension support */
|
|
if (XShmQueryExtension (xcontext->disp) &&
|
|
gst_xvimagesink_check_xshm_calls (xcontext)) {
|
|
xcontext->use_xshm = TRUE;
|
|
GST_DEBUG ("xvimagesink is using XShm extension");
|
|
} else
|
|
#endif /* HAVE_XSHM */
|
|
{
|
|
xcontext->use_xshm = FALSE;
|
|
GST_DEBUG ("xvimagesink is not using XShm extension");
|
|
}
|
|
|
|
xv_attr = XvQueryPortAttributes (xcontext->disp,
|
|
xcontext->xv_port_id, &N_attr);
|
|
|
|
|
|
/* Generate the channels list */
|
|
for (i = 0; i < (sizeof (channels) / sizeof (char *)); i++) {
|
|
XvAttribute *matching_attr = NULL;
|
|
|
|
/* Retrieve the property atom if it exists. If it doesn't exist,
|
|
* the attribute itself must not either, so we can skip */
|
|
prop_atom = XInternAtom (xcontext->disp, channels[i], True);
|
|
if (prop_atom == None)
|
|
continue;
|
|
|
|
if (xv_attr != NULL) {
|
|
for (j = 0; j < N_attr && matching_attr == NULL; ++j)
|
|
if (!g_ascii_strcasecmp (channels[i], xv_attr[j].name))
|
|
matching_attr = xv_attr + j;
|
|
}
|
|
|
|
if (matching_attr) {
|
|
GstColorBalanceChannel *channel;
|
|
|
|
channel = g_object_new (GST_TYPE_COLOR_BALANCE_CHANNEL, NULL);
|
|
channel->label = g_strdup (channels[i]);
|
|
channel->min_value = matching_attr ? matching_attr->min_value : -1000;
|
|
channel->max_value = matching_attr ? matching_attr->max_value : 1000;
|
|
|
|
xcontext->channels_list = g_list_append (xcontext->channels_list,
|
|
channel);
|
|
|
|
/* If the colorbalance settings have not been touched we get Xv values
|
|
as defaults and update our internal variables */
|
|
if (!xvimagesink->cb_changed) {
|
|
gint val;
|
|
|
|
XvGetPortAttribute (xcontext->disp, xcontext->xv_port_id,
|
|
prop_atom, &val);
|
|
/* Normalize val to [-1000, 1000] */
|
|
val = -1000 + 2000 * (val - channel->min_value) /
|
|
(channel->max_value - channel->min_value);
|
|
|
|
if (!g_ascii_strcasecmp (channels[i], "XV_HUE"))
|
|
xvimagesink->hue = val;
|
|
else if (!g_ascii_strcasecmp (channels[i], "XV_SATURATION"))
|
|
xvimagesink->saturation = val;
|
|
else if (!g_ascii_strcasecmp (channels[i], "XV_BRIGHTNESS"))
|
|
xvimagesink->brightness = val;
|
|
else if (!g_ascii_strcasecmp (channels[i], "XV_CONTRAST"))
|
|
xvimagesink->contrast = val;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (xv_attr)
|
|
XFree (xv_attr);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
/* Setup our event listening thread */
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
xvimagesink->running = TRUE;
|
|
xvimagesink->event_thread = g_thread_create (
|
|
(GThreadFunc) gst_xvimagesink_event_thread, xvimagesink, TRUE, NULL);
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
|
|
return xcontext;
|
|
}
|
|
|
|
/* This function cleans the X context. Closing the Display, releasing the XV
|
|
port and unrefing the caps for supported formats. */
|
|
static void
|
|
gst_xvimagesink_xcontext_clear (GstXvImageSink * xvimagesink)
|
|
{
|
|
GList *formats_list, *channels_list;
|
|
GstXContext *xcontext;
|
|
gint i = 0;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
if (xvimagesink->xcontext == NULL) {
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
return;
|
|
}
|
|
|
|
/* Take the XContext from the sink and clean it up */
|
|
xcontext = xvimagesink->xcontext;
|
|
xvimagesink->xcontext = NULL;
|
|
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
|
|
|
|
formats_list = xcontext->formats_list;
|
|
|
|
while (formats_list) {
|
|
GstXvImageFormat *format = formats_list->data;
|
|
|
|
gst_caps_unref (format->caps);
|
|
g_free (format);
|
|
formats_list = g_list_next (formats_list);
|
|
}
|
|
|
|
if (xcontext->formats_list)
|
|
g_list_free (xcontext->formats_list);
|
|
|
|
channels_list = xcontext->channels_list;
|
|
|
|
while (channels_list) {
|
|
GstColorBalanceChannel *channel = channels_list->data;
|
|
|
|
g_object_unref (channel);
|
|
channels_list = g_list_next (channels_list);
|
|
}
|
|
|
|
if (xcontext->channels_list)
|
|
g_list_free (xcontext->channels_list);
|
|
|
|
gst_caps_unref (xcontext->caps);
|
|
if (xcontext->last_caps)
|
|
gst_caps_replace (&xcontext->last_caps, NULL);
|
|
|
|
for (i = 0; i < xcontext->nb_adaptors; i++) {
|
|
g_free (xcontext->adaptors[i]);
|
|
}
|
|
|
|
g_free (xcontext->adaptors);
|
|
|
|
g_free (xcontext->par);
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink, "Closing display and freeing X Context");
|
|
|
|
XvUngrabPort (xcontext->disp, xcontext->xv_port_id, 0);
|
|
|
|
XCloseDisplay (xcontext->disp);
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_free (xcontext);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_imagepool_clear (GstXvImageSink * xvimagesink)
|
|
{
|
|
g_mutex_lock (xvimagesink->pool_lock);
|
|
|
|
while (xvimagesink->image_pool) {
|
|
GstXvImageBuffer *xvimage = xvimagesink->image_pool->data;
|
|
|
|
xvimagesink->image_pool = g_slist_delete_link (xvimagesink->image_pool,
|
|
xvimagesink->image_pool);
|
|
gst_xvimage_buffer_free (xvimage);
|
|
}
|
|
|
|
g_mutex_unlock (xvimagesink->pool_lock);
|
|
}
|
|
|
|
/* Element stuff */
|
|
|
|
/* This function tries to get a format matching with a given caps in the
|
|
supported list of formats we generated in gst_xvimagesink_get_xv_support */
|
|
static gint
|
|
gst_xvimagesink_get_format_from_caps (GstXvImageSink * xvimagesink,
|
|
GstCaps * caps)
|
|
{
|
|
GList *list = NULL;
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), 0);
|
|
|
|
list = xvimagesink->xcontext->formats_list;
|
|
|
|
while (list) {
|
|
GstXvImageFormat *format = list->data;
|
|
|
|
if (format) {
|
|
GstCaps *icaps = NULL;
|
|
|
|
icaps = gst_caps_intersect (caps, format->caps);
|
|
if (!gst_caps_is_empty (icaps)) {
|
|
gst_caps_unref (icaps);
|
|
return format->format;
|
|
}
|
|
gst_caps_unref (icaps);
|
|
}
|
|
list = g_list_next (list);
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_xvimagesink_getcaps (GstBaseSink * bsink)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (bsink);
|
|
|
|
if (xvimagesink->xcontext)
|
|
return gst_caps_ref (xvimagesink->xcontext->caps);
|
|
|
|
return
|
|
gst_caps_copy (gst_pad_get_pad_template_caps (GST_VIDEO_SINK_PAD
|
|
(xvimagesink)));
|
|
}
|
|
|
|
static gboolean
|
|
gst_xvimagesink_setcaps (GstBaseSink * bsink, GstCaps * caps)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
GstStructure *structure;
|
|
GstCaps *intersection;
|
|
guint32 im_format = 0;
|
|
gboolean ret;
|
|
gint video_width, video_height;
|
|
gint video_par_n, video_par_d; /* video's PAR */
|
|
gint display_par_n, display_par_d; /* display's PAR */
|
|
const GValue *caps_par;
|
|
const GValue *fps;
|
|
guint num, den;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (bsink);
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink,
|
|
"In setcaps. Possible caps %" GST_PTR_FORMAT ", setting caps %"
|
|
GST_PTR_FORMAT, xvimagesink->xcontext->caps, caps);
|
|
|
|
intersection = gst_caps_intersect (xvimagesink->xcontext->caps, caps);
|
|
GST_DEBUG_OBJECT (xvimagesink, "intersection returned %" GST_PTR_FORMAT,
|
|
intersection);
|
|
if (gst_caps_is_empty (intersection)) {
|
|
gst_caps_unref (intersection);
|
|
return FALSE;
|
|
}
|
|
|
|
gst_caps_unref (intersection);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
ret = gst_structure_get_int (structure, "width", &video_width);
|
|
ret &= gst_structure_get_int (structure, "height", &video_height);
|
|
fps = gst_structure_get_value (structure, "framerate");
|
|
ret &= (fps != NULL);
|
|
|
|
if (!ret) {
|
|
GST_DEBUG_OBJECT (xvimagesink, "Failed to retrieve either width, "
|
|
"height or framerate from intersected caps");
|
|
return FALSE;
|
|
}
|
|
|
|
xvimagesink->fps_n = gst_value_get_fraction_numerator (fps);
|
|
xvimagesink->fps_d = gst_value_get_fraction_denominator (fps);
|
|
|
|
xvimagesink->video_width = video_width;
|
|
xvimagesink->video_height = video_height;
|
|
im_format = gst_xvimagesink_get_format_from_caps (xvimagesink, caps);
|
|
if (im_format == -1) {
|
|
GST_DEBUG_OBJECT (xvimagesink,
|
|
"Could not locate image format from caps %" GST_PTR_FORMAT, caps);
|
|
return FALSE;
|
|
}
|
|
|
|
/* get aspect ratio from caps if it's present, and
|
|
* convert video width and height to a display width and height
|
|
* using wd / hd = wv / hv * PARv / PARd */
|
|
|
|
/* get video's PAR */
|
|
caps_par = gst_structure_get_value (structure, "pixel-aspect-ratio");
|
|
if (caps_par) {
|
|
video_par_n = gst_value_get_fraction_numerator (caps_par);
|
|
video_par_d = gst_value_get_fraction_denominator (caps_par);
|
|
} else {
|
|
video_par_n = 1;
|
|
video_par_d = 1;
|
|
}
|
|
/* get display's PAR */
|
|
if (xvimagesink->par) {
|
|
display_par_n = gst_value_get_fraction_numerator (xvimagesink->par);
|
|
display_par_d = gst_value_get_fraction_denominator (xvimagesink->par);
|
|
} else {
|
|
display_par_n = 1;
|
|
display_par_d = 1;
|
|
}
|
|
|
|
if (!gst_video_calculate_display_ratio (&num, &den, video_width,
|
|
video_height, video_par_n, video_par_d, display_par_n,
|
|
display_par_d)) {
|
|
GST_ELEMENT_ERROR (xvimagesink, CORE, NEGOTIATION, (NULL),
|
|
("Error calculating the output display ratio of the video."));
|
|
return FALSE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink,
|
|
"video width/height: %dx%d, calculated display ratio: %d/%d",
|
|
video_width, video_height, num, den);
|
|
|
|
/* now find a width x height that respects this display ratio.
|
|
* prefer those that have one of w/h the same as the incoming video
|
|
* using wd / hd = num / den */
|
|
|
|
/* start with same height, because of interlaced video */
|
|
/* check hd / den is an integer scale factor, and scale wd with the PAR */
|
|
if (video_height % den == 0) {
|
|
GST_DEBUG_OBJECT (xvimagesink, "keeping video height");
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink) = (guint)
|
|
gst_util_uint64_scale_int (video_height, num, den);
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink) = video_height;
|
|
} else if (video_width % num == 0) {
|
|
GST_DEBUG_OBJECT (xvimagesink, "keeping video width");
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink) = video_width;
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink) = (guint)
|
|
gst_util_uint64_scale_int (video_width, den, num);
|
|
} else {
|
|
GST_DEBUG_OBJECT (xvimagesink, "approximating while keeping video height");
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink) = (guint)
|
|
gst_util_uint64_scale_int (video_height, num, den);
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink) = video_height;
|
|
}
|
|
GST_DEBUG_OBJECT (xvimagesink, "scaling to %dx%d",
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink), GST_VIDEO_SINK_HEIGHT (xvimagesink));
|
|
|
|
/* Notify application to set xwindow id now */
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
if (!xvimagesink->xwindow) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (xvimagesink));
|
|
} else {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
}
|
|
|
|
/* Creating our window and our image with the display size in pixels */
|
|
if (GST_VIDEO_SINK_WIDTH (xvimagesink) <= 0 ||
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink) <= 0) {
|
|
GST_ELEMENT_ERROR (xvimagesink, CORE, NEGOTIATION, (NULL),
|
|
("Error calculating the output display ratio of the video."));
|
|
return FALSE;
|
|
}
|
|
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
if (!xvimagesink->xwindow) {
|
|
xvimagesink->xwindow = gst_xvimagesink_xwindow_new (xvimagesink,
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink),
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink));
|
|
}
|
|
|
|
/* After a resize, we want to redraw the borders in case the new frame size
|
|
* doesn't cover the same area */
|
|
xvimagesink->draw_border = TRUE;
|
|
|
|
/* We renew our xvimage only if size or format changed;
|
|
* the xvimage is the same size as the video pixel size */
|
|
if ((xvimagesink->xvimage) &&
|
|
((im_format != xvimagesink->xvimage->im_format) ||
|
|
(video_width != xvimagesink->xvimage->width) ||
|
|
(video_height != xvimagesink->xvimage->height))) {
|
|
GST_DEBUG_OBJECT (xvimagesink,
|
|
"old format %" GST_FOURCC_FORMAT ", new format %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (xvimagesink->xvimage->im_format),
|
|
GST_FOURCC_ARGS (im_format));
|
|
GST_DEBUG_OBJECT (xvimagesink, "renewing xvimage");
|
|
gst_buffer_unref (GST_BUFFER (xvimagesink->xvimage));
|
|
xvimagesink->xvimage = NULL;
|
|
}
|
|
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_xvimagesink_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstXvImageSink *xvimagesink;
|
|
GstXContext *xcontext = NULL;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
/* Initializing the XContext */
|
|
if (xvimagesink->xcontext == NULL) {
|
|
xcontext = gst_xvimagesink_xcontext_get (xvimagesink);
|
|
if (xcontext == NULL)
|
|
return GST_STATE_CHANGE_FAILURE;
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
if (xcontext)
|
|
xvimagesink->xcontext = xcontext;
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
}
|
|
|
|
/* update object's par with calculated one if not set yet */
|
|
if (!xvimagesink->par) {
|
|
xvimagesink->par = g_new0 (GValue, 1);
|
|
gst_value_init_and_copy (xvimagesink->par, xvimagesink->xcontext->par);
|
|
GST_DEBUG_OBJECT (xvimagesink, "set calculated PAR on object's PAR");
|
|
}
|
|
/* call XSynchronize with the current value of synchronous */
|
|
GST_DEBUG_OBJECT (xvimagesink, "XSynchronize called with %s",
|
|
xvimagesink->synchronous ? "TRUE" : "FALSE");
|
|
XSynchronize (xvimagesink->xcontext->disp, xvimagesink->synchronous);
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
if (xvimagesink->xwindow)
|
|
gst_xvimagesink_xwindow_clear (xvimagesink, xvimagesink->xwindow);
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
|
|
break;
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
xvimagesink->fps_n = 0;
|
|
xvimagesink->fps_d = 1;
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink) = 0;
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink) = 0;
|
|
break;
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
gst_xvimagesink_reset (xvimagesink);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_get_times (GstBaseSink * bsink, GstBuffer * buf,
|
|
GstClockTime * start, GstClockTime * end)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (bsink);
|
|
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
|
|
*start = GST_BUFFER_TIMESTAMP (buf);
|
|
if (GST_BUFFER_DURATION_IS_VALID (buf)) {
|
|
*end = *start + GST_BUFFER_DURATION (buf);
|
|
} else {
|
|
if (xvimagesink->fps_n > 0) {
|
|
*end = *start +
|
|
gst_util_uint64_scale_int (GST_SECOND, xvimagesink->fps_d,
|
|
xvimagesink->fps_n);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_xvimagesink_show_frame (GstBaseSink * bsink, GstBuffer * buf)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (bsink);
|
|
|
|
/* If this buffer has been allocated using our buffer management we simply
|
|
put the ximage which is in the PRIVATE pointer */
|
|
if (GST_IS_XVIMAGE_BUFFER (buf)) {
|
|
GST_LOG_OBJECT (xvimagesink, "fast put of bufferpool buffer");
|
|
if (!gst_xvimagesink_xvimage_put (xvimagesink, GST_XVIMAGE_BUFFER (buf)))
|
|
goto no_window;
|
|
} else {
|
|
GST_LOG_OBJECT (xvimagesink, "slow copy into bufferpool buffer");
|
|
/* Else we have to copy the data into our private image, */
|
|
/* if we have one... */
|
|
if (!xvimagesink->xvimage) {
|
|
GST_DEBUG_OBJECT (xvimagesink, "creating our xvimage");
|
|
|
|
xvimagesink->xvimage = gst_xvimagesink_xvimage_new (xvimagesink,
|
|
GST_BUFFER_CAPS (buf));
|
|
|
|
if (!xvimagesink->xvimage)
|
|
/* The create method should have posted an informative error */
|
|
goto no_image;
|
|
|
|
if (xvimagesink->xvimage->size < GST_BUFFER_SIZE (buf)) {
|
|
GST_ELEMENT_ERROR (xvimagesink, RESOURCE, WRITE,
|
|
("Failed to create output image buffer of %dx%d pixels",
|
|
xvimagesink->xvimage->width, xvimagesink->xvimage->height),
|
|
("XServer allocated buffer size did not match input buffer"));
|
|
|
|
gst_xvimage_buffer_destroy (xvimagesink->xvimage);
|
|
xvimagesink->xvimage = NULL;
|
|
goto no_image;
|
|
}
|
|
}
|
|
|
|
memcpy (xvimagesink->xvimage->xvimage->data,
|
|
GST_BUFFER_DATA (buf),
|
|
MIN (GST_BUFFER_SIZE (buf), xvimagesink->xvimage->size));
|
|
|
|
if (!gst_xvimagesink_xvimage_put (xvimagesink, xvimagesink->xvimage))
|
|
goto no_window;
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
/* ERRORS */
|
|
no_image:
|
|
{
|
|
/* No image available. That's very bad ! */
|
|
GST_WARNING_OBJECT (xvimagesink, "could not create image");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
no_window:
|
|
{
|
|
/* No Window available to put our image into */
|
|
GST_WARNING_OBJECT (xvimagesink, "could not output image - no window");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
/* Buffer management */
|
|
|
|
static GstFlowReturn
|
|
gst_xvimagesink_buffer_alloc (GstBaseSink * bsink, guint64 offset, guint size,
|
|
GstCaps * caps, GstBuffer ** buf)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstXvImageSink *xvimagesink;
|
|
GstXvImageBuffer *xvimage = NULL;
|
|
GstCaps *intersection = NULL;
|
|
GstStructure *structure = NULL;
|
|
gint width, height, image_format;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (bsink);
|
|
|
|
if (G_LIKELY (xvimagesink->xcontext->last_caps &&
|
|
gst_caps_is_equal (caps, xvimagesink->xcontext->last_caps))) {
|
|
GST_DEBUG_OBJECT (xvimagesink,
|
|
"buffer alloc for same last_caps, reusing caps");
|
|
intersection = gst_caps_ref (caps);
|
|
image_format = xvimagesink->xcontext->last_format;
|
|
|
|
goto reuse_last_caps;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink, "buffer alloc requested with caps %"
|
|
GST_PTR_FORMAT ", intersecting with our caps %" GST_PTR_FORMAT, caps,
|
|
xvimagesink->xcontext->caps);
|
|
|
|
/* Check the caps against our xcontext */
|
|
intersection = gst_caps_intersect (xvimagesink->xcontext->caps, caps);
|
|
|
|
/* Ensure the returned caps are fixed */
|
|
gst_caps_truncate (intersection);
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink, "intersection in buffer alloc returned %"
|
|
GST_PTR_FORMAT, intersection);
|
|
|
|
if (gst_caps_is_empty (intersection)) {
|
|
/* So we don't support this kind of buffer, let's define one we'd like */
|
|
GstCaps *new_caps = gst_caps_copy (caps);
|
|
|
|
structure = gst_caps_get_structure (new_caps, 0);
|
|
|
|
/* Try with YUV first */
|
|
gst_structure_set_name (structure, "video/x-raw-yuv");
|
|
gst_structure_remove_field (structure, "format");
|
|
gst_structure_remove_field (structure, "endianness");
|
|
gst_structure_remove_field (structure, "depth");
|
|
gst_structure_remove_field (structure, "bpp");
|
|
gst_structure_remove_field (structure, "red_mask");
|
|
gst_structure_remove_field (structure, "green_mask");
|
|
gst_structure_remove_field (structure, "blue_mask");
|
|
gst_structure_remove_field (structure, "alpha_mask");
|
|
|
|
/* Reuse intersection with Xcontext */
|
|
gst_caps_unref (intersection);
|
|
intersection = gst_caps_intersect (xvimagesink->xcontext->caps, new_caps);
|
|
|
|
if (gst_caps_is_empty (intersection)) {
|
|
/* Now try with RGB */
|
|
gst_structure_set_name (structure, "video/x-raw-rgb");
|
|
/* And interset again */
|
|
gst_caps_unref (intersection);
|
|
intersection = gst_caps_intersect (xvimagesink->xcontext->caps, new_caps);
|
|
|
|
if (gst_caps_is_empty (intersection)) {
|
|
GST_WARNING_OBJECT (xvimagesink, "we were requested a buffer with "
|
|
"caps %" GST_PTR_FORMAT ", but our xcontext caps %" GST_PTR_FORMAT
|
|
" are completely incompatible with those caps", new_caps,
|
|
xvimagesink->xcontext->caps);
|
|
gst_caps_unref (new_caps);
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
goto beach;
|
|
}
|
|
}
|
|
|
|
/* Clean this copy */
|
|
gst_caps_unref (new_caps);
|
|
/* We want fixed caps */
|
|
gst_caps_truncate (intersection);
|
|
|
|
GST_DEBUG_OBJECT (xvimagesink, "allocating a buffer with caps %"
|
|
GST_PTR_FORMAT, intersection);
|
|
} else if (gst_caps_is_equal (intersection, caps)) {
|
|
/* Things work better if we return a buffer with the same caps ptr
|
|
* as was asked for when we can */
|
|
gst_caps_replace (&intersection, caps);
|
|
}
|
|
|
|
/* Get image format from caps */
|
|
image_format = gst_xvimagesink_get_format_from_caps (xvimagesink,
|
|
intersection);
|
|
|
|
/* Store our caps and format as the last_caps to avoid expensive
|
|
* caps intersection next time */
|
|
gst_caps_replace (&xvimagesink->xcontext->last_caps, intersection);
|
|
xvimagesink->xcontext->last_format = image_format;
|
|
|
|
reuse_last_caps:
|
|
|
|
/* Get geometry from caps */
|
|
structure = gst_caps_get_structure (intersection, 0);
|
|
if (!gst_structure_get_int (structure, "width", &width) ||
|
|
!gst_structure_get_int (structure, "height", &height) ||
|
|
image_format == -1) {
|
|
GST_WARNING_OBJECT (xvimagesink, "invalid caps for buffer allocation %"
|
|
GST_PTR_FORMAT, intersection);
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
goto beach;
|
|
}
|
|
|
|
g_mutex_lock (xvimagesink->pool_lock);
|
|
|
|
/* Walking through the pool cleaning unusable images and searching for a
|
|
suitable one */
|
|
while (xvimagesink->image_pool) {
|
|
xvimage = xvimagesink->image_pool->data;
|
|
|
|
if (xvimage) {
|
|
/* Removing from the pool */
|
|
xvimagesink->image_pool = g_slist_delete_link (xvimagesink->image_pool,
|
|
xvimagesink->image_pool);
|
|
|
|
/* We check for geometry or image format changes */
|
|
if ((xvimage->width != width) ||
|
|
(xvimage->height != height) || (xvimage->im_format != image_format)) {
|
|
/* This image is unusable. Destroying... */
|
|
gst_xvimage_buffer_free (xvimage);
|
|
xvimage = NULL;
|
|
} else {
|
|
/* We found a suitable image */
|
|
GST_LOG_OBJECT (xvimagesink, "found usable image in pool");
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_mutex_unlock (xvimagesink->pool_lock);
|
|
|
|
if (!xvimage) {
|
|
/* We found no suitable image in the pool. Creating... */
|
|
GST_DEBUG_OBJECT (xvimagesink, "no usable image in pool, creating xvimage");
|
|
xvimage = gst_xvimagesink_xvimage_new (xvimagesink, intersection);
|
|
if (xvimage && xvimage->size < size) {
|
|
/* This image is unusable. Destroying... */
|
|
gst_xvimage_buffer_free (xvimage);
|
|
xvimage = NULL;
|
|
}
|
|
}
|
|
|
|
if (xvimage) {
|
|
gst_buffer_set_caps (GST_BUFFER (xvimage), intersection);
|
|
}
|
|
|
|
*buf = GST_BUFFER (xvimage);
|
|
|
|
beach:
|
|
if (intersection) {
|
|
gst_caps_unref (intersection);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Interfaces stuff */
|
|
|
|
static gboolean
|
|
gst_xvimagesink_interface_supported (GstImplementsInterface * iface, GType type)
|
|
{
|
|
g_assert (type == GST_TYPE_NAVIGATION || type == GST_TYPE_X_OVERLAY ||
|
|
type == GST_TYPE_COLOR_BALANCE || type == GST_TYPE_PROPERTY_PROBE);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_interface_init (GstImplementsInterfaceClass * klass)
|
|
{
|
|
klass->supported = gst_xvimagesink_interface_supported;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_navigation_send_event (GstNavigation * navigation,
|
|
GstStructure * structure)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (navigation);
|
|
GstPad *peer;
|
|
|
|
if ((peer = gst_pad_get_peer (GST_VIDEO_SINK_PAD (xvimagesink)))) {
|
|
GstEvent *event;
|
|
GstVideoRectangle src, dst, result;
|
|
gdouble x, y, xscale = 1.0, yscale = 1.0;
|
|
|
|
event = gst_event_new_navigation (structure);
|
|
|
|
/* We take the flow_lock while we look at the window */
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
|
|
if (!xvimagesink->xwindow) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
return;
|
|
}
|
|
|
|
/* We get the frame position using the calculated geometry from _setcaps
|
|
that respect pixel aspect ratios */
|
|
src.w = GST_VIDEO_SINK_WIDTH (xvimagesink);
|
|
src.h = GST_VIDEO_SINK_HEIGHT (xvimagesink);
|
|
dst.w = xvimagesink->xwindow->width;
|
|
dst.h = xvimagesink->xwindow->height;
|
|
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
|
|
if (xvimagesink->keep_aspect) {
|
|
gst_video_sink_center_rect (src, dst, &result, TRUE);
|
|
} else {
|
|
result.x = result.y = 0;
|
|
result.w = dst.w;
|
|
result.h = dst.h;
|
|
}
|
|
|
|
/* We calculate scaling using the original video frames geometry to include
|
|
pixel aspect ratio scaling. */
|
|
xscale = (gdouble) xvimagesink->video_width / result.w;
|
|
yscale = (gdouble) xvimagesink->video_height / result.h;
|
|
|
|
/* Converting pointer coordinates to the non scaled geometry */
|
|
if (gst_structure_get_double (structure, "pointer_x", &x)) {
|
|
x = MIN (x, result.x + result.w);
|
|
x = MAX (x - result.x, 0);
|
|
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
|
|
(gdouble) x * xscale, NULL);
|
|
}
|
|
if (gst_structure_get_double (structure, "pointer_y", &y)) {
|
|
y = MIN (y, result.y + result.h);
|
|
y = MAX (y - result.y, 0);
|
|
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
|
|
(gdouble) y * yscale, NULL);
|
|
}
|
|
|
|
gst_pad_send_event (peer, event);
|
|
gst_object_unref (peer);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_navigation_init (GstNavigationInterface * iface)
|
|
{
|
|
iface->send_event = gst_xvimagesink_navigation_send_event;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_set_xwindow_id (GstXOverlay * overlay, XID xwindow_id)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (overlay);
|
|
GstXWindow *xwindow = NULL;
|
|
XWindowAttributes attr;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
|
|
/* If we already use that window return */
|
|
if (xvimagesink->xwindow && (xwindow_id == xvimagesink->xwindow->win)) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
return;
|
|
}
|
|
|
|
/* If the element has not initialized the X11 context try to do so */
|
|
if (!xvimagesink->xcontext &&
|
|
!(xvimagesink->xcontext = gst_xvimagesink_xcontext_get (xvimagesink))) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
/* we have thrown a GST_ELEMENT_ERROR now */
|
|
return;
|
|
}
|
|
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
|
|
/* Clear image pool as the images are unusable anyway */
|
|
gst_xvimagesink_imagepool_clear (xvimagesink);
|
|
|
|
/* Clear the xvimage */
|
|
if (xvimagesink->xvimage) {
|
|
gst_xvimage_buffer_free (xvimagesink->xvimage);
|
|
xvimagesink->xvimage = NULL;
|
|
}
|
|
|
|
/* If a window is there already we destroy it */
|
|
if (xvimagesink->xwindow) {
|
|
gst_xvimagesink_xwindow_destroy (xvimagesink, xvimagesink->xwindow);
|
|
xvimagesink->xwindow = NULL;
|
|
}
|
|
|
|
/* If the xid is 0 we go back to an internal window */
|
|
if (xwindow_id == 0) {
|
|
/* If no width/height caps nego did not happen window will be created
|
|
during caps nego then */
|
|
if (GST_VIDEO_SINK_WIDTH (xvimagesink)
|
|
&& GST_VIDEO_SINK_HEIGHT (xvimagesink)) {
|
|
xwindow =
|
|
gst_xvimagesink_xwindow_new (xvimagesink,
|
|
GST_VIDEO_SINK_WIDTH (xvimagesink),
|
|
GST_VIDEO_SINK_HEIGHT (xvimagesink));
|
|
}
|
|
} else {
|
|
xwindow = g_new0 (GstXWindow, 1);
|
|
|
|
xwindow->win = xwindow_id;
|
|
|
|
/* We get window geometry, set the event we want to receive,
|
|
and create a GC */
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
XGetWindowAttributes (xvimagesink->xcontext->disp, xwindow->win, &attr);
|
|
xwindow->width = attr.width;
|
|
xwindow->height = attr.height;
|
|
xwindow->internal = FALSE;
|
|
if (xvimagesink->handle_events) {
|
|
XSelectInput (xvimagesink->xcontext->disp, xwindow->win, ExposureMask |
|
|
StructureNotifyMask | PointerMotionMask | KeyPressMask |
|
|
KeyReleaseMask);
|
|
}
|
|
|
|
xwindow->gc = XCreateGC (xvimagesink->xcontext->disp,
|
|
xwindow->win, 0, NULL);
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
}
|
|
|
|
if (xwindow)
|
|
xvimagesink->xwindow = xwindow;
|
|
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_expose (GstXOverlay * overlay)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (overlay);
|
|
|
|
gst_xvimagesink_xvimage_put (xvimagesink, NULL);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_set_event_handling (GstXOverlay * overlay,
|
|
gboolean handle_events)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (overlay);
|
|
|
|
xvimagesink->handle_events = handle_events;
|
|
|
|
g_mutex_lock (xvimagesink->flow_lock);
|
|
|
|
if (G_UNLIKELY (!xvimagesink->xwindow)) {
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
return;
|
|
}
|
|
|
|
g_mutex_lock (xvimagesink->x_lock);
|
|
|
|
if (handle_events) {
|
|
if (xvimagesink->xwindow->internal) {
|
|
XSelectInput (xvimagesink->xcontext->disp, xvimagesink->xwindow->win,
|
|
ExposureMask | StructureNotifyMask | PointerMotionMask |
|
|
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask);
|
|
} else {
|
|
XSelectInput (xvimagesink->xcontext->disp, xvimagesink->xwindow->win,
|
|
ExposureMask | StructureNotifyMask | PointerMotionMask |
|
|
KeyPressMask | KeyReleaseMask);
|
|
}
|
|
} else {
|
|
XSelectInput (xvimagesink->xcontext->disp, xvimagesink->xwindow->win, 0);
|
|
}
|
|
|
|
g_mutex_unlock (xvimagesink->x_lock);
|
|
|
|
g_mutex_unlock (xvimagesink->flow_lock);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_xoverlay_init (GstXOverlayClass * iface)
|
|
{
|
|
iface->set_xwindow_id = gst_xvimagesink_set_xwindow_id;
|
|
iface->expose = gst_xvimagesink_expose;
|
|
iface->handle_events = gst_xvimagesink_set_event_handling;
|
|
}
|
|
|
|
static const GList *
|
|
gst_xvimagesink_colorbalance_list_channels (GstColorBalance * balance)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (balance);
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), NULL);
|
|
|
|
if (xvimagesink->xcontext)
|
|
return xvimagesink->xcontext->channels_list;
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_colorbalance_set_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel, gint value)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (balance);
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
|
|
g_return_if_fail (channel->label != NULL);
|
|
|
|
xvimagesink->cb_changed = TRUE;
|
|
|
|
/* Normalize val to [-1000, 1000] */
|
|
value = -1000 + 2000 * (value - channel->min_value) /
|
|
(channel->max_value - channel->min_value);
|
|
|
|
if (g_ascii_strcasecmp (channel->label, "XV_HUE") == 0) {
|
|
xvimagesink->hue = value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_SATURATION") == 0) {
|
|
xvimagesink->saturation = value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_CONTRAST") == 0) {
|
|
xvimagesink->contrast = value;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_BRIGHTNESS") == 0) {
|
|
xvimagesink->brightness = value;
|
|
} else {
|
|
g_warning ("got an unknown channel %s", channel->label);
|
|
return;
|
|
}
|
|
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
}
|
|
|
|
static gint
|
|
gst_xvimagesink_colorbalance_get_value (GstColorBalance * balance,
|
|
GstColorBalanceChannel * channel)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (balance);
|
|
gint value = 0;
|
|
|
|
g_return_val_if_fail (GST_IS_XVIMAGESINK (xvimagesink), 0);
|
|
g_return_val_if_fail (channel->label != NULL, 0);
|
|
|
|
if (g_ascii_strcasecmp (channel->label, "XV_HUE") == 0) {
|
|
value = xvimagesink->hue;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_SATURATION") == 0) {
|
|
value = xvimagesink->saturation;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_CONTRAST") == 0) {
|
|
value = xvimagesink->contrast;
|
|
} else if (g_ascii_strcasecmp (channel->label, "XV_BRIGHTNESS") == 0) {
|
|
value = xvimagesink->brightness;
|
|
} else {
|
|
g_warning ("got an unknown channel %s", channel->label);
|
|
}
|
|
|
|
/* Normalize val to [channel->min_value, channel->max_value] */
|
|
value = channel->min_value + (channel->max_value - channel->min_value) *
|
|
(value + 1000) / 2000;
|
|
|
|
return value;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_colorbalance_init (GstColorBalanceClass * iface)
|
|
{
|
|
GST_COLOR_BALANCE_TYPE (iface) = GST_COLOR_BALANCE_HARDWARE;
|
|
iface->list_channels = gst_xvimagesink_colorbalance_list_channels;
|
|
iface->set_value = gst_xvimagesink_colorbalance_set_value;
|
|
iface->get_value = gst_xvimagesink_colorbalance_get_value;
|
|
}
|
|
|
|
static const GList *
|
|
gst_xvimagesink_probe_get_properties (GstPropertyProbe * probe)
|
|
{
|
|
GObjectClass *klass = G_OBJECT_GET_CLASS (probe);
|
|
static GList *list = NULL;
|
|
|
|
if (!list) {
|
|
list = g_list_append (NULL, g_object_class_find_property (klass, "device"));
|
|
}
|
|
|
|
return list;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_probe_probe_property (GstPropertyProbe * probe,
|
|
guint prop_id, const GParamSpec * pspec)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (probe);
|
|
|
|
switch (prop_id) {
|
|
case ARG_DEVICE:
|
|
GST_DEBUG_OBJECT (xvimagesink, "probing device list");
|
|
if (!xvimagesink->xcontext) {
|
|
GST_DEBUG_OBJECT (xvimagesink, "generating xcontext");
|
|
xvimagesink->xcontext = gst_xvimagesink_xcontext_get (xvimagesink);
|
|
}
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_xvimagesink_probe_needs_probe (GstPropertyProbe * probe,
|
|
guint prop_id, const GParamSpec * pspec)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (probe);
|
|
gboolean ret = FALSE;
|
|
|
|
switch (prop_id) {
|
|
case ARG_DEVICE:
|
|
if (xvimagesink->xcontext != NULL) {
|
|
ret = FALSE;
|
|
} else {
|
|
ret = TRUE;
|
|
}
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GValueArray *
|
|
gst_xvimagesink_probe_get_values (GstPropertyProbe * probe,
|
|
guint prop_id, const GParamSpec * pspec)
|
|
{
|
|
GstXvImageSink *xvimagesink = GST_XVIMAGESINK (probe);
|
|
GValueArray *array = NULL;
|
|
|
|
if (G_UNLIKELY (!xvimagesink->xcontext)) {
|
|
GST_WARNING_OBJECT (xvimagesink, "we don't have any xcontext, can't "
|
|
"get values");
|
|
goto beach;
|
|
}
|
|
|
|
switch (prop_id) {
|
|
case ARG_DEVICE:
|
|
{
|
|
guint i;
|
|
GValue value = { 0 };
|
|
|
|
array = g_value_array_new (xvimagesink->xcontext->nb_adaptors);
|
|
g_value_init (&value, G_TYPE_STRING);
|
|
|
|
for (i = 0; i < xvimagesink->xcontext->nb_adaptors; i++) {
|
|
gchar *adaptor_id_s = g_strdup_printf ("%u", i);
|
|
|
|
g_value_set_string (&value, adaptor_id_s);
|
|
g_value_array_append (array, &value);
|
|
g_free (adaptor_id_s);
|
|
}
|
|
g_value_unset (&value);
|
|
break;
|
|
}
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (probe, prop_id, pspec);
|
|
break;
|
|
}
|
|
|
|
beach:
|
|
return array;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_property_probe_interface_init (GstPropertyProbeInterface *
|
|
iface)
|
|
{
|
|
iface->get_properties = gst_xvimagesink_probe_get_properties;
|
|
iface->probe_property = gst_xvimagesink_probe_probe_property;
|
|
iface->needs_probe = gst_xvimagesink_probe_needs_probe;
|
|
iface->get_values = gst_xvimagesink_probe_get_values;
|
|
}
|
|
|
|
/* =========================================== */
|
|
/* */
|
|
/* Init & Class init */
|
|
/* */
|
|
/* =========================================== */
|
|
|
|
static void
|
|
gst_xvimagesink_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (object));
|
|
|
|
xvimagesink = GST_XVIMAGESINK (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_HUE:
|
|
xvimagesink->hue = g_value_get_int (value);
|
|
xvimagesink->cb_changed = TRUE;
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
break;
|
|
case ARG_CONTRAST:
|
|
xvimagesink->contrast = g_value_get_int (value);
|
|
xvimagesink->cb_changed = TRUE;
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
break;
|
|
case ARG_BRIGHTNESS:
|
|
xvimagesink->brightness = g_value_get_int (value);
|
|
xvimagesink->cb_changed = TRUE;
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
break;
|
|
case ARG_SATURATION:
|
|
xvimagesink->saturation = g_value_get_int (value);
|
|
xvimagesink->cb_changed = TRUE;
|
|
gst_xvimagesink_update_colorbalance (xvimagesink);
|
|
break;
|
|
case ARG_DISPLAY:
|
|
xvimagesink->display_name = g_strdup (g_value_get_string (value));
|
|
break;
|
|
case ARG_SYNCHRONOUS:
|
|
xvimagesink->synchronous = g_value_get_boolean (value);
|
|
if (xvimagesink->xcontext) {
|
|
XSynchronize (xvimagesink->xcontext->disp, xvimagesink->synchronous);
|
|
GST_DEBUG_OBJECT (xvimagesink, "XSynchronize called with %s",
|
|
xvimagesink->synchronous ? "TRUE" : "FALSE");
|
|
}
|
|
break;
|
|
case ARG_PIXEL_ASPECT_RATIO:
|
|
g_free (xvimagesink->par);
|
|
xvimagesink->par = g_new0 (GValue, 1);
|
|
g_value_init (xvimagesink->par, GST_TYPE_FRACTION);
|
|
if (!g_value_transform (value, xvimagesink->par)) {
|
|
g_warning ("Could not transform string to aspect ratio");
|
|
gst_value_set_fraction (xvimagesink->par, 1, 1);
|
|
}
|
|
GST_DEBUG_OBJECT (xvimagesink, "set PAR to %d/%d",
|
|
gst_value_get_fraction_numerator (xvimagesink->par),
|
|
gst_value_get_fraction_denominator (xvimagesink->par));
|
|
break;
|
|
case ARG_FORCE_ASPECT_RATIO:
|
|
xvimagesink->keep_aspect = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_HANDLE_EVENTS:
|
|
gst_xvimagesink_set_event_handling (GST_X_OVERLAY (xvimagesink),
|
|
g_value_get_boolean (value));
|
|
break;
|
|
case ARG_DEVICE:
|
|
xvimagesink->adaptor_no = atoi (g_value_get_string (value));
|
|
break;
|
|
case ARG_HANDLE_EXPOSE:
|
|
xvimagesink->handle_expose = g_value_get_boolean (value);
|
|
break;
|
|
case ARG_DOUBLE_BUFFER:
|
|
xvimagesink->double_buffer = g_value_get_boolean (value);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_get_property (GObject * object, guint prop_id,
|
|
GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
g_return_if_fail (GST_IS_XVIMAGESINK (object));
|
|
|
|
xvimagesink = GST_XVIMAGESINK (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_HUE:
|
|
g_value_set_int (value, xvimagesink->hue);
|
|
break;
|
|
case ARG_CONTRAST:
|
|
g_value_set_int (value, xvimagesink->contrast);
|
|
break;
|
|
case ARG_BRIGHTNESS:
|
|
g_value_set_int (value, xvimagesink->brightness);
|
|
break;
|
|
case ARG_SATURATION:
|
|
g_value_set_int (value, xvimagesink->saturation);
|
|
break;
|
|
case ARG_DISPLAY:
|
|
g_value_set_string (value, xvimagesink->display_name);
|
|
break;
|
|
case ARG_SYNCHRONOUS:
|
|
g_value_set_boolean (value, xvimagesink->synchronous);
|
|
break;
|
|
case ARG_PIXEL_ASPECT_RATIO:
|
|
if (xvimagesink->par)
|
|
g_value_transform (xvimagesink->par, value);
|
|
break;
|
|
case ARG_FORCE_ASPECT_RATIO:
|
|
g_value_set_boolean (value, xvimagesink->keep_aspect);
|
|
break;
|
|
case ARG_HANDLE_EVENTS:
|
|
g_value_set_boolean (value, xvimagesink->handle_events);
|
|
break;
|
|
case ARG_DEVICE:
|
|
{
|
|
char *adaptor_no_s = g_strdup_printf ("%u", xvimagesink->adaptor_no);
|
|
|
|
g_value_set_string (value, adaptor_no_s);
|
|
g_free (adaptor_no_s);
|
|
break;
|
|
}
|
|
case ARG_DEVICE_NAME:
|
|
if (xvimagesink->xcontext && xvimagesink->xcontext->adaptors) {
|
|
g_value_set_string (value,
|
|
xvimagesink->xcontext->adaptors[xvimagesink->adaptor_no]);
|
|
} else {
|
|
g_value_set_string (value, NULL);
|
|
}
|
|
break;
|
|
case ARG_HANDLE_EXPOSE:
|
|
g_value_set_boolean (value, xvimagesink->handle_expose);
|
|
break;
|
|
case ARG_DOUBLE_BUFFER:
|
|
g_value_set_boolean (value, xvimagesink->double_buffer);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_reset (GstXvImageSink * xvimagesink)
|
|
{
|
|
GThread *thread;
|
|
|
|
GST_OBJECT_LOCK (xvimagesink);
|
|
xvimagesink->running = FALSE;
|
|
/* grab thread and mark it as NULL */
|
|
thread = xvimagesink->event_thread;
|
|
xvimagesink->event_thread = NULL;
|
|
GST_OBJECT_UNLOCK (xvimagesink);
|
|
|
|
/* Wait for our event thread to finish before we clean up our stuff. */
|
|
if (thread)
|
|
g_thread_join (thread);
|
|
|
|
if (xvimagesink->cur_image) {
|
|
gst_buffer_unref (xvimagesink->cur_image);
|
|
xvimagesink->cur_image = NULL;
|
|
}
|
|
if (xvimagesink->xvimage) {
|
|
gst_buffer_unref (xvimagesink->xvimage);
|
|
xvimagesink->xvimage = NULL;
|
|
}
|
|
|
|
gst_xvimagesink_imagepool_clear (xvimagesink);
|
|
|
|
if (xvimagesink->xwindow) {
|
|
gst_xvimagesink_xwindow_clear (xvimagesink, xvimagesink->xwindow);
|
|
gst_xvimagesink_xwindow_destroy (xvimagesink, xvimagesink->xwindow);
|
|
xvimagesink->xwindow = NULL;
|
|
}
|
|
|
|
gst_xvimagesink_xcontext_clear (xvimagesink);
|
|
}
|
|
|
|
/* Finalize is called only once, dispose can be called multiple times.
|
|
* We use mutexes and don't reset stuff to NULL here so let's register
|
|
* as a finalize. */
|
|
static void
|
|
gst_xvimagesink_finalize (GObject * object)
|
|
{
|
|
GstXvImageSink *xvimagesink;
|
|
|
|
xvimagesink = GST_XVIMAGESINK (object);
|
|
|
|
gst_xvimagesink_reset (xvimagesink);
|
|
|
|
if (xvimagesink->display_name) {
|
|
g_free (xvimagesink->display_name);
|
|
xvimagesink->display_name = NULL;
|
|
}
|
|
|
|
if (xvimagesink->par) {
|
|
g_free (xvimagesink->par);
|
|
xvimagesink->par = NULL;
|
|
}
|
|
if (xvimagesink->x_lock) {
|
|
g_mutex_free (xvimagesink->x_lock);
|
|
xvimagesink->x_lock = NULL;
|
|
}
|
|
if (xvimagesink->flow_lock) {
|
|
g_mutex_free (xvimagesink->flow_lock);
|
|
xvimagesink->flow_lock = NULL;
|
|
}
|
|
if (xvimagesink->pool_lock) {
|
|
g_mutex_free (xvimagesink->pool_lock);
|
|
xvimagesink->pool_lock = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_init (GstXvImageSink * xvimagesink)
|
|
{
|
|
xvimagesink->display_name = NULL;
|
|
xvimagesink->adaptor_no = 0;
|
|
xvimagesink->xcontext = NULL;
|
|
xvimagesink->xwindow = NULL;
|
|
xvimagesink->xvimage = NULL;
|
|
xvimagesink->cur_image = NULL;
|
|
|
|
xvimagesink->hue = xvimagesink->saturation = 0;
|
|
xvimagesink->contrast = xvimagesink->brightness = 0;
|
|
xvimagesink->cb_changed = FALSE;
|
|
|
|
xvimagesink->fps_n = 0;
|
|
xvimagesink->fps_d = 0;
|
|
xvimagesink->video_width = 0;
|
|
xvimagesink->video_height = 0;
|
|
|
|
xvimagesink->x_lock = g_mutex_new ();
|
|
xvimagesink->flow_lock = g_mutex_new ();
|
|
|
|
xvimagesink->image_pool = NULL;
|
|
xvimagesink->pool_lock = g_mutex_new ();
|
|
|
|
xvimagesink->synchronous = FALSE;
|
|
xvimagesink->double_buffer = TRUE;
|
|
xvimagesink->running = FALSE;
|
|
xvimagesink->keep_aspect = FALSE;
|
|
xvimagesink->handle_events = TRUE;
|
|
xvimagesink->par = NULL;
|
|
xvimagesink->handle_expose = TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_set_details (element_class, &gst_xvimagesink_details);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_xvimagesink_sink_template_factory));
|
|
}
|
|
|
|
static void
|
|
gst_xvimagesink_class_init (GstXvImageSinkClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstBaseSinkClass *gstbasesink_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
gstbasesink_class = (GstBaseSinkClass *) klass;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_class->set_property = gst_xvimagesink_set_property;
|
|
gobject_class->get_property = gst_xvimagesink_get_property;
|
|
|
|
g_object_class_install_property (gobject_class, ARG_CONTRAST,
|
|
g_param_spec_int ("contrast", "Contrast", "The contrast of the video",
|
|
-1000, 1000, 0, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_BRIGHTNESS,
|
|
g_param_spec_int ("brightness", "Brightness",
|
|
"The brightness of the video", -1000, 1000, 0, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_HUE,
|
|
g_param_spec_int ("hue", "Hue", "The hue of the video", -1000, 1000, 0,
|
|
G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_SATURATION,
|
|
g_param_spec_int ("saturation", "Saturation",
|
|
"The saturation of the video", -1000, 1000, 0, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_DISPLAY,
|
|
g_param_spec_string ("display", "Display", "X Display name", NULL,
|
|
G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_SYNCHRONOUS,
|
|
g_param_spec_boolean ("synchronous", "Synchronous",
|
|
"When enabled, runs "
|
|
"the X display in synchronous mode. (used only for debugging)", FALSE,
|
|
G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_PIXEL_ASPECT_RATIO,
|
|
g_param_spec_string ("pixel-aspect-ratio", "Pixel Aspect Ratio",
|
|
"The pixel aspect ratio of the device", "1/1", G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_FORCE_ASPECT_RATIO,
|
|
g_param_spec_boolean ("force-aspect-ratio", "Force aspect ratio",
|
|
"When enabled, scaling will respect original aspect ratio", FALSE,
|
|
G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_HANDLE_EVENTS,
|
|
g_param_spec_boolean ("handle-events", "Handle XEvents",
|
|
"When enabled, XEvents will be selected and handled", TRUE,
|
|
G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_DEVICE,
|
|
g_param_spec_string ("device", "Adaptor number",
|
|
"The number of the video adaptor", "0", G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_DEVICE_NAME,
|
|
g_param_spec_string ("device-name", "Adaptor name",
|
|
"The name of the video adaptor", NULL, G_PARAM_READABLE));
|
|
g_object_class_install_property (gobject_class, ARG_HANDLE_EXPOSE,
|
|
g_param_spec_boolean ("handle-expose", "Handle expose", "When enabled, "
|
|
"the current frame will always be drawn in response to X Expose "
|
|
"events", TRUE, G_PARAM_READWRITE));
|
|
g_object_class_install_property (gobject_class, ARG_DOUBLE_BUFFER,
|
|
g_param_spec_boolean ("double-buffer", "Double-buffer",
|
|
"Whether to double-buffer the output", TRUE, G_PARAM_READWRITE));
|
|
|
|
gobject_class->finalize = gst_xvimagesink_finalize;
|
|
|
|
gstelement_class->change_state =
|
|
GST_DEBUG_FUNCPTR (gst_xvimagesink_change_state);
|
|
|
|
gstbasesink_class->get_caps = GST_DEBUG_FUNCPTR (gst_xvimagesink_getcaps);
|
|
gstbasesink_class->set_caps = GST_DEBUG_FUNCPTR (gst_xvimagesink_setcaps);
|
|
gstbasesink_class->buffer_alloc =
|
|
GST_DEBUG_FUNCPTR (gst_xvimagesink_buffer_alloc);
|
|
gstbasesink_class->get_times = GST_DEBUG_FUNCPTR (gst_xvimagesink_get_times);
|
|
gstbasesink_class->preroll = GST_DEBUG_FUNCPTR (gst_xvimagesink_show_frame);
|
|
gstbasesink_class->render = GST_DEBUG_FUNCPTR (gst_xvimagesink_show_frame);
|
|
}
|
|
|
|
/* ============================================================= */
|
|
/* */
|
|
/* Public Methods */
|
|
/* */
|
|
/* ============================================================= */
|
|
|
|
/* =========================================== */
|
|
/* */
|
|
/* Object typing & Creation */
|
|
/* */
|
|
/* =========================================== */
|
|
|
|
GType
|
|
gst_xvimagesink_get_type (void)
|
|
{
|
|
static GType xvimagesink_type = 0;
|
|
|
|
if (!xvimagesink_type) {
|
|
static const GTypeInfo xvimagesink_info = {
|
|
sizeof (GstXvImageSinkClass),
|
|
gst_xvimagesink_base_init,
|
|
NULL,
|
|
(GClassInitFunc) gst_xvimagesink_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstXvImageSink),
|
|
0,
|
|
(GInstanceInitFunc) gst_xvimagesink_init,
|
|
};
|
|
static const GInterfaceInfo iface_info = {
|
|
(GInterfaceInitFunc) gst_xvimagesink_interface_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo navigation_info = {
|
|
(GInterfaceInitFunc) gst_xvimagesink_navigation_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo overlay_info = {
|
|
(GInterfaceInitFunc) gst_xvimagesink_xoverlay_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo colorbalance_info = {
|
|
(GInterfaceInitFunc) gst_xvimagesink_colorbalance_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
static const GInterfaceInfo propertyprobe_info = {
|
|
(GInterfaceInitFunc) gst_xvimagesink_property_probe_interface_init,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
xvimagesink_type = g_type_register_static (GST_TYPE_VIDEO_SINK,
|
|
"GstXvImageSink", &xvimagesink_info, 0);
|
|
|
|
g_type_add_interface_static (xvimagesink_type,
|
|
GST_TYPE_IMPLEMENTS_INTERFACE, &iface_info);
|
|
g_type_add_interface_static (xvimagesink_type, GST_TYPE_NAVIGATION,
|
|
&navigation_info);
|
|
g_type_add_interface_static (xvimagesink_type, GST_TYPE_X_OVERLAY,
|
|
&overlay_info);
|
|
g_type_add_interface_static (xvimagesink_type, GST_TYPE_COLOR_BALANCE,
|
|
&colorbalance_info);
|
|
g_type_add_interface_static (xvimagesink_type, GST_TYPE_PROPERTY_PROBE,
|
|
&propertyprobe_info);
|
|
|
|
|
|
/* register type and create class in a more safe place instead of at
|
|
* runtime since the type registration and class creation is not
|
|
* threadsafe. */
|
|
g_type_class_ref (gst_xvimage_buffer_get_type ());
|
|
}
|
|
|
|
return xvimagesink_type;
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
if (!gst_element_register (plugin, "xvimagesink",
|
|
GST_RANK_PRIMARY, GST_TYPE_XVIMAGESINK))
|
|
return FALSE;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (gst_debug_xvimagesink, "xvimagesink", 0,
|
|
"xvimagesink element");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"xvimagesink",
|
|
"XFree86 video output plugin using Xv extension",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|