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Diffstat (limited to 'sys/v4l/gstv4lxoverlay.c')
-rw-r--r--sys/v4l/gstv4lxoverlay.c245
1 files changed, 0 insertions, 245 deletions
diff --git a/sys/v4l/gstv4lxoverlay.c b/sys/v4l/gstv4lxoverlay.c
deleted file mode 100644
index cefb8835..00000000
--- a/sys/v4l/gstv4lxoverlay.c
+++ /dev/null
@@ -1,245 +0,0 @@
-/* GStreamer
- *
- * gstv4lxoverlay.c: X-based overlay interface implementation for V4L
- *
- * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.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.
- */
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include <string.h>
-#include <sys/stat.h>
-
-#include <X11/X.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/Xv.h>
-#include <X11/extensions/Xvlib.h>
-
-#include "gstv4lxoverlay.h"
-#include "gstv4lelement.h"
-#include "v4l_calls.h"
-
-GST_DEBUG_CATEGORY_STATIC (v4lxv_debug);
-#define GST_CAT_DEFAULT v4lxv_debug
-
-struct _GstV4lXv
-{
- Display *dpy;
- gint port, idle_id;
- GMutex *mutex;
-};
-
-static void gst_v4l_xoverlay_set_xwindow_id (GstXOverlay * overlay,
- XID xwindow_id);
-
-void
-gst_v4l_xoverlay_interface_init (GstXOverlayClass * klass)
-{
- /* default virtual functions */
- klass->set_xwindow_id = gst_v4l_xoverlay_set_xwindow_id;
-
- GST_DEBUG_CATEGORY_INIT (v4lxv_debug, "v4lxv", 0,
- "V4L XOverlay interface debugging");
-}
-
-static void
-gst_v4l_xoverlay_open (GstV4lElement * v4lelement)
-{
- struct stat s;
- GstV4lXv *v4lxv;
- const gchar *name = g_getenv ("DISPLAY");
- unsigned int ver, rel, req, ev, err, anum;
- int i, id = 0, first_id = 0, min;
- XvAdaptorInfo *ai;
- Display *dpy;
-
- /* we need a display, obviously */
- if (!name || !(dpy = XOpenDisplay (name))) {
- GST_WARNING ("No $DISPLAY set or failed to open - no overlay");
- return;
- }
-
- /* First let's check that XVideo extension is available */
- if (!XQueryExtension (dpy, "XVideo", &i, &i, &i)) {
- GST_WARNING ("Xv extension not available - no overlay");
- XCloseDisplay (dpy);
- return;
- }
-
- /* find port that belongs to this device */
- if (XvQueryExtension (dpy, &ver, &rel, &req, &ev, &err) != Success) {
- GST_WARNING ("Xv extension not supported - no overlay");
- XCloseDisplay (dpy);
- return;
- }
- if (XvQueryAdaptors (dpy, DefaultRootWindow (dpy), &anum, &ai) != Success) {
- GST_WARNING ("Failed to query Xv adaptors");
- XCloseDisplay (dpy);
- return;
- }
- if (fstat (v4lelement->video_fd, &s) < 0) {
- GST_ERROR ("Failed to stat() file descriptor: %s", g_strerror (errno));
- XCloseDisplay (dpy);
- return;
- }
- min = s.st_rdev & 0xff;
- for (i = 0; i < anum; i++) {
- if (!strcmp (ai[i].name, "video4linux")) {
- if (first_id == 0)
- first_id = ai[i].base_id;
-
- /* hmm... */
- if (first_id != 0 && ai[i].base_id == first_id + min)
- id = ai[i].base_id;
- }
- }
- XvFreeAdaptorInfo (ai);
-
- if (id == 0) {
- GST_WARNING ("Did not find XvPortID for device - no overlay");
- XCloseDisplay (dpy);
- return;
- }
-
- v4lxv = g_new0 (GstV4lXv, 1);
- v4lxv->dpy = dpy;
- v4lxv->port = id;
- v4lxv->mutex = g_mutex_new ();
- v4lxv->idle_id = 0;
- v4lelement->xv = v4lxv;
-
- if (v4lelement->xwindow_id) {
- gst_v4l_xoverlay_set_xwindow_id (GST_X_OVERLAY (v4lelement),
- v4lelement->xwindow_id);
- }
-}
-
-static void
-gst_v4l_xoverlay_close (GstV4lElement * v4lelement)
-{
- GstV4lXv *v4lxv = v4lelement->xv;
-
- if (!v4lelement->xv)
- return;
-
- if (v4lelement->xwindow_id) {
- gst_v4l_xoverlay_set_xwindow_id (GST_X_OVERLAY (v4lelement), 0);
- }
-
- XCloseDisplay (v4lxv->dpy);
- g_mutex_free (v4lxv->mutex);
- if (v4lxv->idle_id)
- g_source_remove (v4lxv->idle_id);
- g_free (v4lxv);
- v4lelement->xv = NULL;
-}
-
-void
-gst_v4l_xoverlay_start (GstV4lElement * v4lelement)
-{
- if (v4lelement->xwindow_id) {
- gst_v4l_xoverlay_open (v4lelement);
- }
-}
-
-void
-gst_v4l_xoverlay_stop (GstV4lElement * v4lelement)
-{
- gst_v4l_xoverlay_close (v4lelement);
-}
-
-static gboolean
-idle_refresh (gpointer data)
-{
- GstV4lElement *v4lelement = GST_V4LELEMENT (data);
- GstV4lXv *v4lxv = v4lelement->xv;
- XWindowAttributes attr;
-
- if (v4lxv) {
- g_mutex_lock (v4lxv->mutex);
-
- XGetWindowAttributes (v4lxv->dpy, v4lelement->xwindow_id, &attr);
- XvPutVideo (v4lxv->dpy, v4lxv->port, v4lelement->xwindow_id,
- DefaultGC (v4lxv->dpy, DefaultScreen (v4lxv->dpy)),
- 0, 0, attr.width, attr.height, 0, 0, attr.width, attr.height);
-
- v4lxv->idle_id = 0;
- g_mutex_unlock (v4lxv->mutex);
- }
-
- /* once */
- return FALSE;
-}
-
-static void
-gst_v4l_xoverlay_set_xwindow_id (GstXOverlay * overlay, XID xwindow_id)
-{
- GstV4lElement *v4lelement = GST_V4LELEMENT (overlay);
- GstV4lXv *v4lxv;
- XWindowAttributes attr;
- gboolean change = (v4lelement->xwindow_id != xwindow_id);
-
- GST_LOG_OBJECT (v4lelement, "Changing port to %lx", xwindow_id);
-
- if (!v4lelement->xv && GST_V4L_IS_OPEN (v4lelement))
- gst_v4l_xoverlay_open (v4lelement);
-
- v4lxv = v4lelement->xv;
-
- if (v4lxv)
- g_mutex_lock (v4lxv->mutex);
-
- if (change) {
- if (v4lelement->xwindow_id && v4lxv) {
- GST_DEBUG_OBJECT (v4lelement,
- "Disabling port %lx", v4lelement->xwindow_id);
-
- XvSelectPortNotify (v4lxv->dpy, v4lxv->port, 0);
- XvSelectVideoNotify (v4lxv->dpy, v4lelement->xwindow_id, 0);
- XvStopVideo (v4lxv->dpy, v4lxv->port, v4lelement->xwindow_id);
- }
-
- v4lelement->xwindow_id = xwindow_id;
- }
-
- if (!v4lxv || xwindow_id == 0) {
- if (v4lxv)
- g_mutex_unlock (v4lxv->mutex);
- return;
- }
-
- if (change) {
- GST_DEBUG_OBJECT (v4lelement, "Enabling port %lx", xwindow_id);
-
- /* draw */
- XvSelectPortNotify (v4lxv->dpy, v4lxv->port, 1);
- XvSelectVideoNotify (v4lxv->dpy, v4lelement->xwindow_id, 1);
- }
-
- XGetWindowAttributes (v4lxv->dpy, v4lelement->xwindow_id, &attr);
- XvPutVideo (v4lxv->dpy, v4lxv->port, v4lelement->xwindow_id,
- DefaultGC (v4lxv->dpy, DefaultScreen (v4lxv->dpy)),
- 0, 0, attr.width, attr.height, 0, 0, attr.width, attr.height);
-
- if (v4lxv->idle_id)
- g_source_remove (v4lxv->idle_id);
- v4lxv->idle_id = g_idle_add (idle_refresh, v4lelement);
- g_mutex_unlock (v4lxv->mutex);
-}
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