DeforaOS/Camera
DeforaOS/Camera
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Implemented command-line flags to influence the aspect ratio

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This commit is contained in:
Pierre Pronchery 2014-02-22 02:08:24 +01:00
parent 97c4e2e01e
commit 45909c6efe
2 changed files with 36 additions and 8 deletions
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14
doc/camera.xml
View File

@ -56,6 +56,8 @@
<replaceable>overlay</replaceable></arg>
<arg choice="opt"><option>-H</option></arg>
<arg choice="opt"><option>-h</option></arg>
<arg choice="opt"><option>-R</option></arg>
<arg choice="opt"><option>-r</option></arg>
<arg choice="opt"><option>-V</option></arg>
<arg choice="opt"><option>-v</option></arg>
<arg choice="opt"><option>-x</option></arg>
@ -96,6 +98,18 @@
<para>Specify an image to display on top of the camera feed.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-R</option></term>
<listitem>
<para>Force the output to preserve the aspect ratio when scaling.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-r</option></term>
<listitem>
<para>Scale the output without preserving the aspect ratio.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><option>-V</option></term>
<listitem>

30
src/main.c
View File

@ -45,7 +45,7 @@
/* private */
/* prototypes */
static int _camera(int embedded, char const * device, int hflip, int vflip,
char const * overlay);
int ratio, char const * overlay);
static int _error(char const * message, int ret);
static int _usage(void);
@ -54,16 +54,16 @@ static int _usage(void);
/* functions */
/* camera */
static int _camera_embedded(char const * device, int hflip, int vflip,
char const * overlay);
int ratio, char const * overlay);
static void _embedded_on_embedded(gpointer data);
static int _camera(int embedded, char const * device, int hflip, int vflip,
char const * overlay)
int ratio, char const * overlay)
{
CameraWindow * camera;
if(embedded != 0)
return _camera_embedded(device, hflip, vflip, overlay);
return _camera_embedded(device, hflip, vflip, ratio, overlay);
if((camera = camerawindow_new(device)) == NULL)
return error_print(PACKAGE);
camerawindow_load(camera);
@ -71,6 +71,8 @@ static int _camera(int embedded, char const * device, int hflip, int vflip,
camerawindow_set_hflip(camera, hflip ? TRUE : FALSE);
if(vflip >= 0)
camerawindow_set_vflip(camera, vflip ? TRUE : FALSE);
if(ratio >= 0)
camerawindow_set_aspect_ratio(camera, ratio ? TRUE : FALSE);
if(overlay != NULL)
camerawindow_add_overlay(camera, overlay, 50);
gtk_main();
@ -79,7 +81,7 @@ static int _camera(int embedded, char const * device, int hflip, int vflip,
}
static int _camera_embedded(char const * device, int hflip, int vflip,
char const * overlay)
int ratio, char const * overlay)
{
GtkWidget * window;
GtkWidget * widget;
@ -100,6 +102,8 @@ static int _camera_embedded(char const * device, int hflip, int vflip,
camera_set_hflip(camera, hflip ? TRUE : FALSE);
if(vflip >= 0)
camera_set_vflip(camera, vflip ? TRUE : FALSE);
if(ratio >= 0)
camera_set_aspect_ratio(camera, ratio ? TRUE : FALSE);
if(overlay != NULL)
camera_add_overlay(camera, overlay, 50);
widget = camera_get_widget(camera);
@ -133,11 +137,13 @@ static int _error(char const * message, int ret)
/* usage */
static int _usage(void)
{
fprintf(stderr, _("Usage: %s [-d device][-O filename][-HVx]\n"
fprintf(stderr, _("Usage: %s [-d device][-O filename][-HhRrVvx]\n"
" -d Video device to open\n"
" -H Flip horizontally\n"
" -h Do not flip horizontally\n"
" -O Use this file as an overlay\n"
" -R Preserve the aspect ratio when scaling\n"
" -r Do not preserve the aspect ratio when scaling\n"
" -V Flip vertically\n"
" -v Do not flip vertically\n"
" -x Start in embedded mode\n"), PROGNAME);
@ -155,6 +161,7 @@ int main(int argc, char * argv[])
char const * device = NULL;
int hflip = -1;
int vflip = -1;
int ratio = -1;
char const * overlay = NULL;
if(setlocale(LC_ALL, "") == NULL)
@ -162,7 +169,7 @@ int main(int argc, char * argv[])
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
gtk_init(&argc, &argv);
while((o = getopt(argc, argv, "d:HhO:Vvx")) != -1)
while((o = getopt(argc, argv, "d:HhO:RrVvx")) != -1)
switch(o)
{
case 'd':
@ -177,6 +184,12 @@ int main(int argc, char * argv[])
case 'O':
overlay = optarg;
break;
case 'R':
ratio = 1;
break;
case 'r':
ratio = 0;
break;
case 'V':
vflip = 1;
break;
@ -191,5 +204,6 @@ int main(int argc, char * argv[])
}
if(optind != argc)
return _usage();
return (_camera(embedded, device, hflip, vflip, overlay) == 0) ? 0 : 2;
return (_camera(embedded, device, hflip, vflip, ratio, overlay) == 0)
? 0 : 2;
}