Introducing the "video" plug-in (not functional yet)

This commit is contained in:
Pierre Pronchery 2012-10-12 01:13:17 +00:00
parent 65f62c3c13
commit 3511430f84
4 changed files with 228 additions and 4 deletions

View File

@ -105,6 +105,7 @@ dist:
$(PACKAGE)-$(VERSION)/src/plugins/systray.c \
$(PACKAGE)-$(VERSION)/src/plugins/template.c \
$(PACKAGE)-$(VERSION)/src/plugins/ussd.c \
$(PACKAGE)-$(VERSION)/src/plugins/video.c \
$(PACKAGE)-$(VERSION)/src/plugins/Makefile \
$(PACKAGE)-$(VERSION)/src/plugins/project.conf \
$(PACKAGE)-$(VERSION)/src/plugins/16x16/Makefile \

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@ -1,5 +1,5 @@
SUBDIRS = 16x16 24x24 32x32 48x48
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
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
PREFIX = /usr/local
DESTDIR =
LIBDIR = $(PREFIX)/lib
@ -127,6 +127,13 @@ ussd_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
ussd.so: $(ussd_OBJS)
$(CCSHARED) -o ussd.so $(ussd_OBJS) $(ussd_LDFLAGS)
video_OBJS = video.o
video_CFLAGS = $(CPPFLAGSF) $(CPPFLAGS) $(CFLAGSF) $(CFLAGS)
video_LDFLAGS = $(LDFLAGSF) $(LDFLAGS)
video.so: $(video_OBJS)
$(CCSHARED) -o video.so $(video_OBJS) $(video_LDFLAGS)
blacklist.o: blacklist.c ../../include/Phone.h
$(CC) $(blacklist_CFLAGS) -c blacklist.c
@ -172,13 +179,16 @@ template.o: template.c ../../include/Phone.h
ussd.o: ussd.c ../../include/Phone.h
$(CC) $(ussd_CFLAGS) -c ussd.c
video.o: video.c ../../include/Phone.h
$(CC) $(video_CFLAGS) -c video.c
clean:
@for i in $(SUBDIRS); do (cd $$i && $(MAKE) clean) || exit; done
$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS)
$(RM) -- $(blacklist_OBJS) $(debug_OBJS) $(engineering_OBJS) $(gprs_OBJS) $(gps_OBJS) $(locker_OBJS) $(n900_OBJS) $(openmoko_OBJS) $(oss_OBJS) $(panel_OBJS) $(profiles_OBJS) $(smscrypt_OBJS) $(systray_OBJS) $(template_OBJS) $(ussd_OBJS) $(video_OBJS)
distclean:
@for i in $(SUBDIRS); do (cd $$i && $(MAKE) distclean) || exit; done
$(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)
$(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)
$(RM) -- $(TARGETS)
install: $(TARGETS)

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@ -1,5 +1,5 @@
subdirs=16x16,24x24,32x32,48x48
targets=blacklist,debug,engineering,gprs,gps,locker,n900,openmoko,oss,panel,profiles,smscrypt,systray,template,ussd
targets=blacklist,debug,engineering,gprs,gps,locker,n900,openmoko,oss,panel,profiles,smscrypt,systray,template,ussd,video
cppflags_force=-I ../../include
cppflags=
cflags_force=-W `pkg-config --cflags libSystem gtk+-2.0`
@ -133,3 +133,10 @@ install=$(LIBDIR)/Phone/plugins
[ussd.c]
depends=../../include/Phone.h
[video]
type=plugin
sources=video.c
[video.c]
depends=../../include/Phone.h

206
src/plugins/video.c Normal file
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@ -0,0 +1,206 @@
/* $Id$ */
/* Copyright (c) 2012 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Phone */
/* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3 of the License.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* TODO:
* - attempt to open the video device at regular intervals
* - display a window even if it was impossible to open a capture device */
#include <sys/ioctl.h>
#ifdef __NetBSD__
# include <sys/videoio.h>
#else
# include <linux/videodev2.h>
#endif
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <System.h>
#include <Desktop.h>
#include "Phone.h"
/* Video */
/* private */
/* types */
typedef struct _PhonePlugin
{
PhonePluginHelper * helper;
int fd;
guint source;
Buffer * buffer;
/* widgets */
GtkWidget * window;
GtkWidget * area;
} VideoPhonePlugin;
/* prototypes */
/* plug-in */
static VideoPhonePlugin * _video_init(PhonePluginHelper * helper);
static void _video_destroy(VideoPhonePlugin * video);
/* useful */
static int _video_ioctl(VideoPhonePlugin * video, unsigned long request,
void * data);
/* callbacks */
static gboolean _video_on_closex(gpointer data);
static gboolean _video_on_refresh(gpointer data);
/* public */
/* variables */
PhonePluginDefinition plugin =
{
"Video",
"camera-video",
NULL,
_video_init,
_video_destroy,
NULL,
NULL
};
/* private */
/* functions */
/* video_init */
static VideoPhonePlugin * _video_init(PhonePluginHelper * helper)
{
VideoPhonePlugin * video;
struct v4l2_capability cap;
struct v4l2_cropcap cropcap;
struct v4l2_crop crop;
struct v4l2_format format;
if((video = object_new(sizeof(*video))) == NULL)
return NULL;
video->helper = helper;
/* FIXME let this be configurable */
video->fd = open("/dev/video0", O_RDWR);
video->buffer = buffer_new(0, NULL);
video->source = 0;
video->window = NULL;
/* check for errors */
if(video->buffer == NULL
|| video->fd < 0
|| _video_ioctl(video, VIDIOC_QUERYCAP, &cap) == -1
|| (cap.capabilities & V4L2_CAP_VIDEO_CAPTURE) == 0
/* FIXME also implement mmap() and streaming */
|| (cap.capabilities & V4L2_CAP_READWRITE) == 0)
{
_video_destroy(video);
return NULL;
}
/* reset cropping */
memset(&cropcap, 0, sizeof(cropcap));
cropcap.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
if(_video_ioctl(video, VIDIOC_CROPCAP, &cropcap) == 0)
{
/* reset to default */
crop.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
crop.c = cropcap.defrect;
if(_video_ioctl(video, VIDIOC_S_CROP, &crop) == -1
&& errno == EINVAL)
helper->error(helper->phone, "Cropping not supported",
0);
}
/* obtain the current format */
if(_video_ioctl(video, VIDIOC_G_FMT, &format) == -1
|| buffer_set_size(video->buffer,
format.fmt.pix.sizeimage) != 0)
{
_video_destroy(video);
return NULL;
}
/* create the window */
video->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(video->window),
format.fmt.pix.width, format.fmt.pix.height);
gtk_window_set_resizable(GTK_WINDOW(video->window), FALSE);
g_signal_connect_swapped(video->window, "delete-event", G_CALLBACK(
_video_on_closex), video);
video->area = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(video->window), video->area);
video->source = g_timeout_add(1000, _video_on_refresh, video);
return video;
}
/* video_destroy */
static void _video_destroy(VideoPhonePlugin * video)
{
if(video->window != NULL)
gtk_widget_destroy(video->window);
if(video->source != 0)
g_source_remove(video->source);
if(video->fd >= 0)
close(video->fd);
buffer_delete(video->buffer);
object_delete(video);
}
/* useful */
/* video_ioctl */
static int _video_ioctl(VideoPhonePlugin * video, unsigned long request,
void * data)
{
int ret;
for(;;)
if((ret = ioctl(video->fd, request, data)) != -1
|| errno != EINTR)
break;
return ret;
}
/* callbacks */
/* video_on_closex */
static gboolean _video_on_closex(gpointer data)
{
VideoPhonePlugin * video = data;
gtk_widget_hide(video->window);
if(video->source != 0)
g_source_remove(video->source);
video->source = 0;
return TRUE;
}
/* video_on_refresh */
static gboolean _video_on_refresh(gpointer data)
{
VideoPhonePlugin * video = data;
/* FIXME no longer block on read() */
if(read(video->fd, buffer_get_data(video->buffer),
buffer_get_size(video->buffer)) <= 0)
{
/* this error can be ignored */
if(errno == EAGAIN)
return TRUE;
close(video->fd);
video->fd = -1;
return FALSE;
}
return TRUE;
}