--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_base/sys/xvimage/xvimagesink.c Wed Sep 01 12:16:41 2010 +0100
@@ -0,0 +1,3254 @@
+/* GStreamer
+ * Copyright (C) <2005> Julien Moutte <julien@moutte.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * SECTION:element-xvimagesink
+ *
+ * <refsect2>
+ * <para>
+ * XvImageSink renders video frames to a drawable (XWindow) on a local display
+ * using the XVideo extension. Rendering to a remote display is theorically
+ * possible but i doubt that the XVideo extension is actually available when
+ * connecting to a remote display. This element can receive a Window ID from the
+ * application through the XOverlay interface and will then render video frames
+ * in this drawable. If no Window ID was provided by the application, the
+ * element will create its own internal window and render into it.
+ * </para>
+ * <title>Scaling</title>
+ * <para>
+ * The XVideo extension, when it's available, handles hardware accelerated
+ * scaling of video frames. This means that the element will just accept
+ * incoming video frames no matter their geometry and will then put them to the
+ * drawable scaling them on the fly. Using the
+ * <link linkend="GstXvImageSink--force-aspect-ratio">force-aspect-ratio</link>
+ * property it is possible to enforce scaling with a constant aspect ratio,
+ * which means drawing black borders around the video frame.
+ * </para>
+ * <title>Events</title>
+ * <para>
+ * XvImageSink creates a thread to handle events coming from the drawable. There
+ * are several kind of events that can be grouped in 2 big categories: input
+ * events and window state related events. Input events will be translated to
+ * navigation events and pushed upstream for other elements to react on them.
+ * This includes events such as pointer moves, key press/release, clicks etc...
+ * Other events are used to handle the drawable appearance even when the data
+ * is not flowing (GST_STATE_PAUSED). That means that even when the element is
+ * paused, it will receive expose events from the drawable and draw the latest
+ * frame with correct borders/aspect-ratio.
+ * </para>
+ * <title>Pixel aspect ratio</title>
+ * <para>
+ * When changing state to GST_STATE_READY, XvImageSink will open a connection to
+ * the display specified in the
+ * <link linkend="GstXvImageSink--display">display</link> property or the
+ * default display if nothing specified. Once this connection is open it will
+ * inspect the display configuration including the physical display geometry and
+ * then calculate the pixel aspect ratio. When receiving video frames with a
+ * different pixel aspect ratio, XvImageSink will use hardware scaling to
+ * display the video frames correctly on display's pixel aspect ratio.
+ * Sometimes the calculated pixel aspect ratio can be wrong, it is
+ * then possible to enforce a specific pixel aspect ratio using the
+ * <link linkend="GstXvImageSink--pixel-aspect-ratio">pixel-aspect-ratio</link>
+ * property.
+ * </para>
+ * <title>Examples</title>
+ * <para>
+ * Here is a simple pipeline to test hardware scaling :
+ * <programlisting>
+ * gst-launch -v videotestsrc ! xvimagesink
+ * </programlisting>
+ * When the test video signal appears you can resize the window and see that
+ * video frames are scaled through hardware (no extra CPU cost). You can try
+ * again setting the force-aspect-ratio property to true and observe the borders
+ * drawn around the scaled image respecting aspect ratio.
+ * <programlisting>
+ * gst-launch -v videotestsrc ! xvimagesink force-aspect-ratio=true
+ * </programlisting>
+ * </para>
+ * <para>
+ * Here is a simple pipeline to test navigation events :
+ * <programlisting>
+ * gst-launch -v videotestsrc ! navigationtest ! xvimagesink
+ * </programlisting>
+ * While moving the mouse pointer over the test signal you will see a black box
+ * following the mouse pointer. If you press the mouse button somewhere on the
+ * video and release it somewhere else a green box will appear where you pressed
+ * the button and a red one where you released it. (The navigationtest element
+ * is part of gst-plugins-good.) You can observe here that even if the images
+ * are scaled through hardware the pointer coordinates are converted back to the
+ * original video frame geometry so that the box can be drawn to the correct
+ * position. This also handles borders correctly, limiting coordinates to the
+ * image area
+ * </para>
+ * <para>
+ * Here is a simple pipeline to test pixel aspect ratio :
+ * <programlisting>
+ * gst-launch -v videotestsrc ! video/x-raw-yuv, pixel-aspect-ratio=(fraction)4/3 ! xvimagesink
+ * </programlisting>
+ * This is faking a 4/3 pixel aspect ratio caps on video frames produced by
+ * videotestsrc, in most cases the pixel aspect ratio of the display will be
+ * 1/1. This means that XvImageSink will have to do the scaling to convert
+ * incoming frames to a size that will match the display pixel aspect ratio
+ * (from 320x240 to 320x180 in this case). Note that you might have to escape
+ * some characters for your shell like '\(fraction\)'.
+ * </para>
+ * <para>
+ * Here is a test pipeline to test the colorbalance interface :
+ * <programlisting>
+ * gst-launch -v videotestsrc ! xvimagesink hue=100 saturation=-100 brightness=100
+ * </programlisting>
+ * </para>
+ * </refsect2>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+/* Our interfaces */
+#include <gst/interfaces/navigation.h>
+#include <gst/interfaces/xoverlay.h>
+#include <gst/interfaces/colorbalance.h>
+#include <gst/interfaces/propertyprobe.h>
+/* Helper functions */
+#include <gst/video/video.h>
+
+/* Object header */
+#include "xvimagesink.h"
+
+/* Debugging category */
+#include <gst/gstinfo.h>
+GST_DEBUG_CATEGORY_STATIC (gst_debug_xvimagesink);
+#define GST_CAT_DEFAULT gst_debug_xvimagesink
+
+typedef struct
+{
+ unsigned long flags;
+ unsigned long functions;
+ unsigned long decorations;
+ long input_mode;
+ unsigned long status;
+}
+MotifWmHints, MwmHints;
+
+#define MWM_HINTS_DECORATIONS (1L << 1)
+
+static void gst_xvimagesink_reset (GstXvImageSink * xvimagesink);
+
+static GstBufferClass *xvimage_buffer_parent_class = NULL;
+static void gst_xvimage_buffer_finalize (GstXvImageBuffer * xvimage);
+
+static void gst_xvimagesink_xwindow_update_geometry (GstXvImageSink *
+ xvimagesink, GstXWindow * xwindow);
+static gint gst_xvimagesink_get_format_from_caps (GstXvImageSink * xvimagesink,
+ GstCaps * caps);
+static void gst_xvimagesink_expose (GstXOverlay * overlay);
+
+/* ElementFactory information */
+static const GstElementDetails gst_xvimagesink_details =
+GST_ELEMENT_DETAILS ("Video sink",
+ "Sink/Video",
+ "A Xv based videosink",
+ "Julien Moutte <julien@moutte.net>");
+
+/* Default template - initiated with class struct to allow gst-register to work
+ without X running */
+static GstStaticPadTemplate gst_xvimagesink_sink_template_factory =
+ GST_STATIC_PAD_TEMPLATE ("sink",
+ GST_PAD_SINK,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/x-raw-rgb, "
+ "framerate = (fraction) [ 0, MAX ], "
+ "width = (int) [ 1, MAX ], "
+ "height = (int) [ 1, MAX ]; "
+ "video/x-raw-yuv, "
+ "framerate = (fraction) [ 0, MAX ], "
+ "width = (int) [ 1, MAX ], " "height = (int) [ 1, MAX ]")
+ );
+
+enum
+{
+ ARG_0,
+ ARG_CONTRAST,
+ ARG_BRIGHTNESS,
+ ARG_HUE,
+ ARG_SATURATION,
+ ARG_DISPLAY,
+ ARG_SYNCHRONOUS,
+ ARG_PIXEL_ASPECT_RATIO,
+ ARG_FORCE_ASPECT_RATIO,
+ ARG_HANDLE_EVENTS,
+ ARG_DEVICE,
+ ARG_DEVICE_NAME,
+ ARG_HANDLE_EXPOSE,
+ ARG_DOUBLE_BUFFER
+};
+
+static GstVideoSinkClass *parent_class = NULL;
+
+/* ============================================================= */
+/* */
+/* Private Methods */
+/* */
+/* ============================================================= */
+
+/* xvimage buffers */
+
+#define GST_TYPE_XVIMAGE_BUFFER (gst_xvimage_buffer_get_type())
+
+#define GST_IS_XVIMAGE_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_XVIMAGE_BUFFER))
+#define GST_XVIMAGE_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_XVIMAGE_BUFFER, GstXvImageBuffer))
+
+/* This function destroys a GstXvImage handling XShm availability */
+static void
+gst_xvimage_buffer_destroy (GstXvImageBuffer * xvimage)
+{
+ GstXvImageSink *xvimagesink;
+
+ GST_DEBUG_OBJECT (xvimage, "Destroying buffer");
+
+ xvimagesink = xvimage->xvimagesink;
+ if (G_UNLIKELY (xvimagesink == NULL))
+ goto no_sink;
+
+ g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
+
+ GST_OBJECT_LOCK (xvimagesink);
+
+ /* If the destroyed image is the current one we destroy our reference too */
+ if (xvimagesink->cur_image == xvimage)
+ xvimagesink->cur_image = NULL;
+
+ /* We might have some buffers destroyed after changing state to NULL */
+ if (xvimagesink->xcontext == NULL) {
+ GST_DEBUG_OBJECT (xvimagesink, "Destroying XvImage after Xcontext");
+#ifdef HAVE_XSHM
+ /* Need to free the shared memory segment even if the x context
+ * was already cleaned up */
+ if (xvimage->SHMInfo.shmaddr != ((void *) -1)) {
+ shmdt (xvimage->SHMInfo.shmaddr);
+ }
+#endif
+ goto beach;
+ }
+
+ g_mutex_lock (xvimagesink->x_lock);
+
+#ifdef HAVE_XSHM
+ if (xvimagesink->xcontext->use_xshm) {
+ if (xvimage->SHMInfo.shmaddr != ((void *) -1)) {
+ GST_DEBUG_OBJECT (xvimagesink, "XServer ShmDetaching from 0x%x id 0x%lx",
+ xvimage->SHMInfo.shmid, xvimage->SHMInfo.shmseg);
+ XShmDetach (xvimagesink->xcontext->disp, &xvimage->SHMInfo);
+ XSync (xvimagesink->xcontext->disp, FALSE);
+
+ shmdt (xvimage->SHMInfo.shmaddr);
+ }
+ if (xvimage->xvimage)
+ XFree (xvimage->xvimage);
+ } else
+#endif /* HAVE_XSHM */
+ {
+ if (xvimage->xvimage) {
+ if (xvimage->xvimage->data) {
+ g_free (xvimage->xvimage->data);
+ }
+ XFree (xvimage->xvimage);
+ }
+ }
+
+ XSync (xvimagesink->xcontext->disp, FALSE);
+
+ g_mutex_unlock (xvimagesink->x_lock);
+
+beach:
+ GST_OBJECT_UNLOCK (xvimagesink);
+ xvimage->xvimagesink = NULL;
+ gst_object_unref (xvimagesink);
+
+ GST_MINI_OBJECT_CLASS (xvimage_buffer_parent_class)->
+ finalize (GST_MINI_OBJECT (xvimage));
+
+ return;
+
+no_sink:
+ {
+ GST_WARNING ("no sink found");
+ return;
+ }
+}
+
+static void
+gst_xvimage_buffer_finalize (GstXvImageBuffer * xvimage)
+{
+ GstXvImageSink *xvimagesink;
+ gboolean running;
+
+ xvimagesink = xvimage->xvimagesink;
+ if (G_UNLIKELY (xvimagesink == NULL))
+ goto no_sink;
+
+ g_return_if_fail (GST_IS_XVIMAGESINK (xvimagesink));
+
+ GST_OBJECT_LOCK (xvimagesink);
+ running = xvimagesink->running;
+ GST_OBJECT_UNLOCK (xvimagesink);
+
+ /* If our geometry changed we can't reuse that image. */
+ if (running == FALSE) {
+ GST_LOG_OBJECT (xvimage, "destroy image as sink is shutting down");
+ gst_xvimage_buffer_destroy (xvimage);
+ } else if ((xvimage->width != xvimagesink->video_width) ||
+ (xvimage->height != xvimagesink->video_height)) {
+ GST_LOG_OBJECT (xvimage,
+ "destroy image as its size changed %dx%d vs current %dx%d",
+ xvimage->width, xvimage->height,
+ xvimagesink->video_width, xvimagesink->video_height);
+ gst_xvimage_buffer_destroy (xvimage);
+ } else {
+ /* In that case we can reuse the image and add it to our image pool. */
+ GST_LOG_OBJECT (xvimage, "recycling image in pool");
+ /* need to increment the refcount again to recycle */
+ gst_buffer_ref (GST_BUFFER (xvimage));
+ g_mutex_lock (xvimagesink->pool_lock);
+ xvimagesink->image_pool = g_slist_prepend (xvimagesink->image_pool,
+ xvimage);
+ g_mutex_unlock (xvimagesink->pool_lock);
+ }
+ return;
+
+no_sink:
+ {
+ GST_WARNING ("no sink found");
+ return;
+ }
+}
+
+static void
+gst_xvimage_buffer_free (GstXvImageBuffer * xvimage)
+{
+ /* make sure it is not recycled */
+ xvimage->width = -1;
+ xvimage->height = -1;
+ gst_buffer_unref (GST_BUFFER (xvimage));
+}
+
+static void
+gst_xvimage_buffer_init (GstXvImageBuffer * xvimage, gpointer g_class)
+{
+#ifdef HAVE_XSHM
+ xvimage->SHMInfo.shmaddr = ((void *) -1);
+ xvimage->SHMInfo.shmid = -1;
+#endif
+}
+
+static void
+gst_xvimage_buffer_class_init (gpointer g_class, gpointer class_data)
+{
+ GstMiniObjectClass *mini_object_class = GST_MINI_OBJECT_CLASS (g_class);
+
+ xvimage_buffer_parent_class = g_type_class_peek_parent (g_class);
+
+ mini_object_class->finalize = (GstMiniObjectFinalizeFunction)
+ gst_xvimage_buffer_finalize;
+}
+
+static GType
+gst_xvimage_buffer_get_type (void)
+{
+ static GType _gst_xvimage_buffer_type;
+
+ if (G_UNLIKELY (_gst_xvimage_buffer_type == 0)) {
+ static const GTypeInfo xvimage_buffer_info = {
+ sizeof (GstBufferClass),
+ NULL,
+ NULL,
+ gst_xvimage_buffer_class_init,
+ NULL,
+ NULL,
+ sizeof (GstXvImageBuffer),
+ 0,
+ (GInstanceInitFunc) gst_xvimage_buffer_init,
+ NULL
+ };
+ _gst_xvimage_buffer_type = g_type_register_static (GST_TYPE_BUFFER,
+ "GstXvImageBuffer", &xvimage_buffer_info, 0);
+ }
+ return _gst_xvimage_buffer_type;
+}
+
+/* X11 stuff */
+
+static gboolean error_caught = FALSE;
+
+static int
+gst_xvimagesink_handle_xerror (Display * display, XErrorEvent * xevent)
+{
+ char error_msg[1024];
+
+ XGetErrorText (display, xevent->error_code, error_msg, 1024);
+ GST_DEBUG ("xvimagesink triggered an XError. error: %s", error_msg);
+ error_caught = TRUE;
+ return 0;
+}
+
+#ifdef HAVE_XSHM
+/* This function checks that it is actually really possible to create an image
+ using XShm */
+static gboolean
+gst_xvimagesink_check_xshm_calls (GstXContext * xcontext)
+{
+ XvImage *xvimage;
+ XShmSegmentInfo SHMInfo;
+ gint size;
+ int (*handler) (Display *, XErrorEvent *);
+ gboolean result = FALSE;
+ gboolean did_attach = FALSE;
+
+ g_return_val_if_fail (xcontext != NULL, FALSE);
+
+ /* Sync to ensure any older errors are already processed */
+ XSync (xcontext->disp, FALSE);
+
+ /* Set defaults so we don't free these later unnecessarily */
+ SHMInfo.shmaddr = ((void *) -1);
+ SHMInfo.shmid = -1;
+
+ /* Setting an error handler to catch failure */
+ error_caught = FALSE;
+ handler = XSetErrorHandler (gst_xvimagesink_handle_xerror);
+
+ /* Trying to create a 1x1 picture */
+ GST_DEBUG ("XvShmCreateImage of 1x1");
+ xvimage = XvShmCreateImage (xcontext->disp, xcontext->xv_port_id,
+ xcontext->im_format, NULL, 1, 1, &SHMInfo);
+
+ /* Might cause an error, sync to ensure it is noticed */
+ XSync (xcontext->disp, FALSE);
+ if (!xvimage || error_caught) {
+ GST_WARNING ("could not XvShmCreateImage a 1x1 image");
+ goto beach;
+ }
+ size = xvimage->data_size;
+
+ SHMInfo.shmid = shmget (IPC_PRIVATE, size, IPC_CREAT | 0777);
+ if (SHMInfo.shmid == -1) {
+ GST_WARNING ("could not get shared memory of %d bytes", size);
+ goto beach;
+ }
+
+ SHMInfo.shmaddr = shmat (SHMInfo.shmid, NULL, 0);
+ if (SHMInfo.shmaddr == ((void *) -1)) {
+ GST_WARNING ("Failed to shmat: %s", g_strerror (errno));
+ /* Clean up the shared memory segment */
+ shmctl (SHMInfo.shmid, IPC_RMID, NULL);
+ goto beach;
+ }
+
+ /* 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, NULL);
+
+ 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);
+ }
+
+ /* Be verbose about our XvImage stride */
+ {
+ guint plane;
+
+ for (plane = 0; plane < xvimage->xvimage->num_planes; plane++) {
+ GST_DEBUG_OBJECT (xvimagesink, "Plane %u has a pitch of %d bytes, "
+ "offset of %d", plane, xvimage->xvimage->pitches[plane],
+ xvimage->xvimage->offsets[plane]);
+ }
+ }
+
+ 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, NULL, 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, NULL);
+ 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, NULL);
+
+ 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)