Introducing the "video" plug-in (not functional yet)
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parent
65f62c3c13
commit
3511430f84
1
Makefile
1
Makefile
@ -105,6 +105,7 @@ dist:
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$(PACKAGE)-$(VERSION)/src/plugins/systray.c \
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$(PACKAGE)-$(VERSION)/src/plugins/template.c \
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$(PACKAGE)-$(VERSION)/src/plugins/ussd.c \
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$(PACKAGE)-$(VERSION)/src/plugins/video.c \
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$(PACKAGE)-$(VERSION)/src/plugins/Makefile \
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$(PACKAGE)-$(VERSION)/src/plugins/project.conf \
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$(PACKAGE)-$(VERSION)/src/plugins/16x16/Makefile \
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@ -1,5 +1,5 @@
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SUBDIRS = 16x16 24x24 32x32 48x48
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TARGETS = blacklist.so debug.so engineering.so gprs.so gps.so locker.so n900.so openmoko.so oss.so panel.so profiles.so smscrypt.so systray.so template.so ussd.so
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TARGETS = blacklist.so debug.so engineering.so gprs.so gps.so locker.so n900.so openmoko.so oss.so panel.so profiles.so smscrypt.so systray.so template.so ussd.so video.so
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PREFIX = /usr/local
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DESTDIR =
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LIBDIR = $(PREFIX)/lib
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@ -127,6 +127,13 @@ ussd_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
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ussd.so: $(ussd_OBJS)
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$(CCSHARED) -o ussd.so $(ussd_OBJS) $(ussd_LDFLAGS)
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video_OBJS = video.o
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video_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
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video_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
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video.so: $(video_OBJS)
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$(CCSHARED) -o video.so $(video_OBJS) $(video_LDFLAGS)
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blacklist.o: blacklist.c ../../include/Phone.h
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$(CC) $(blacklist_CFLAGS) -c blacklist.c
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@ -172,13 +179,16 @@ template.o: template.c ../../include/Phone.h
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ussd.o: ussd.c ../../include/Phone.h
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$(CC) $(ussd_CFLAGS) -c ussd.c
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video.o: video.c ../../include/Phone.h
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$(CC) $(video_CFLAGS) -c video.c
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clean:
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@for i in $(SUBDIRS); do (cd $$i && $(MAKE) clean) || exit; done
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$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS)
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$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS) $(video_OBJS)
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distclean:
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@for i in $(SUBDIRS); do (cd $$i && $(MAKE) distclean) || exit; done
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$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS)
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$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS) $(video_OBJS)
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$(RM) -- $(TARGETS)
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install: $(TARGETS)
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@ -1,5 +1,5 @@
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subdirs=16x16,24x24,32x32,48x48
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targets=blacklist,debug,engineering,gprs,gps,locker,n900,openmoko,oss,panel,profiles,smscrypt,systray,template,ussd
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targets=blacklist,debug,engineering,gprs,gps,locker,n900,openmoko,oss,panel,profiles,smscrypt,systray,template,ussd,video
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cppflags_force=-I ../../include
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cppflags=
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cflags_force=-W `pkg-config --cflags libSystem gtk+-2.0`
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@ -133,3 +133,10 @@ install=$(LIBDIR)/Phone/plugins
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[ussd.c]
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depends=../../include/Phone.h
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[video]
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type=plugin
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sources=video.c
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[video.c]
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depends=../../include/Phone.h
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206
src/plugins/video.c
Normal file
206
src/plugins/video.c
Normal file
@ -0,0 +1,206 @@
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/* $Id$ */
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/* Copyright (c) 2012 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS Desktop Phone */
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/* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, version 3 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* TODO:
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* - attempt to open the video device at regular intervals
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* - display a window even if it was impossible to open a capture device */
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#include <sys/ioctl.h>
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#ifdef __NetBSD__
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# include <sys/videoio.h>
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#else
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# include <linux/videodev2.h>
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#endif
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#include <fcntl.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <System.h>
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#include <Desktop.h>
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#include "Phone.h"
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/* Video */
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/* private */
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/* types */
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typedef struct _PhonePlugin
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{
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PhonePluginHelper * helper;
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int fd;
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guint source;
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Buffer * buffer;
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/* widgets */
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GtkWidget * window;
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GtkWidget * area;
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} VideoPhonePlugin;
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/* prototypes */
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/* plug-in */
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static VideoPhonePlugin * _video_init(PhonePluginHelper * helper);
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static void _video_destroy(VideoPhonePlugin * video);
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/* useful */
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static int _video_ioctl(VideoPhonePlugin * video, unsigned long request,
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void * data);
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/* callbacks */
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static gboolean _video_on_closex(gpointer data);
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static gboolean _video_on_refresh(gpointer data);
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/* public */
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/* variables */
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PhonePluginDefinition plugin =
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{
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"Video",
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"camera-video",
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NULL,
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_video_init,
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_video_destroy,
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NULL,
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NULL
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};
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/* private */
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/* functions */
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/* video_init */
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static VideoPhonePlugin * _video_init(PhonePluginHelper * helper)
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{
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VideoPhonePlugin * video;
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struct v4l2_capability cap;
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struct v4l2_cropcap cropcap;
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struct v4l2_crop crop;
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struct v4l2_format format;
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if((video = object_new(sizeof(*video))) == NULL)
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return NULL;
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video->helper = helper;
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/* FIXME let this be configurable */
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video->fd = open("/dev/video0", O_RDWR);
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video->buffer = buffer_new(0, NULL);
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video->source = 0;
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video->window = NULL;
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/* check for errors */
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if(video->buffer == NULL
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|| video->fd < 0
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|| _video_ioctl(video, VIDIOC_QUERYCAP, &cap) == -1
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|| (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) == 0
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/* FIXME also implement mmap() and streaming */
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|| (cap.capabilities & V4L2_CAP_READWRITE) == 0)
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{
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_video_destroy(video);
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return NULL;
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}
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/* reset cropping */
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memset(&cropcap, 0, sizeof(cropcap));
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cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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if(_video_ioctl(video, VIDIOC_CROPCAP, &cropcap) == 0)
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{
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/* reset to default */
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crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
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crop.c = cropcap.defrect;
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if(_video_ioctl(video, VIDIOC_S_CROP, &crop) == -1
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&& errno == EINVAL)
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helper->error(helper->phone, "Cropping not supported",
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0);
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}
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/* obtain the current format */
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if(_video_ioctl(video, VIDIOC_G_FMT, &format) == -1
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|| buffer_set_size(video->buffer,
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format.fmt.pix.sizeimage) != 0)
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{
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_video_destroy(video);
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return NULL;
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}
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/* create the window */
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video->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_window_set_default_size(GTK_WINDOW(video->window),
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format.fmt.pix.width, format.fmt.pix.height);
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gtk_window_set_resizable(GTK_WINDOW(video->window), FALSE);
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g_signal_connect_swapped(video->window, "delete-event", G_CALLBACK(
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_video_on_closex), video);
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video->area = gtk_drawing_area_new();
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gtk_container_add(GTK_CONTAINER(video->window), video->area);
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video->source = g_timeout_add(1000, _video_on_refresh, video);
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return video;
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}
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/* video_destroy */
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static void _video_destroy(VideoPhonePlugin * video)
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{
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if(video->window != NULL)
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gtk_widget_destroy(video->window);
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if(video->source != 0)
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g_source_remove(video->source);
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if(video->fd >= 0)
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close(video->fd);
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buffer_delete(video->buffer);
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object_delete(video);
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}
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/* useful */
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/* video_ioctl */
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static int _video_ioctl(VideoPhonePlugin * video, unsigned long request,
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void * data)
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{
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int ret;
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for(;;)
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if((ret = ioctl(video->fd, request, data)) != -1
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|| errno != EINTR)
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break;
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return ret;
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}
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/* callbacks */
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/* video_on_closex */
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static gboolean _video_on_closex(gpointer data)
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{
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VideoPhonePlugin * video = data;
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gtk_widget_hide(video->window);
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if(video->source != 0)
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g_source_remove(video->source);
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video->source = 0;
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return TRUE;
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}
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/* video_on_refresh */
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static gboolean _video_on_refresh(gpointer data)
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{
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VideoPhonePlugin * video = data;
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/* FIXME no longer block on read() */
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if(read(video->fd, buffer_get_data(video->buffer),
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buffer_get_size(video->buffer)) <= 0)
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{
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/* this error can be ignored */
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if(errno == EAGAIN)
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return TRUE;
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close(video->fd);
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video->fd = -1;
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return FALSE;
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}
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return TRUE;
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}
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