DeforaOS/Camera
DeforaOS/Camera
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Let the YUV amplification be more easily altered

Browse Source
This commit is contained in:
Pierre Pronchery 2012-12-22 02:26:04 +01:00
parent d3982a06f3
commit 3ebec91402
1 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
src/camera.c
View File

@ -52,6 +52,9 @@ struct _Camera
guint source;
/* decoding */
int yuv_amp;
/* widgets */
GdkGC * gc;
GtkWidget * window;
@ -131,6 +134,7 @@ Camera * camera_new(char const * device)
camera->buffer = NULL;
camera->buffer_cnt = 0;
camera->source = 0;
camera->yuv_amp = 255;
camera->gc = NULL;
camera->window = NULL;
/* check for errors */
@ -467,7 +471,7 @@ static int _open_setup(Camera * camera)
/* camera_on_refresh */
static void _refresh_convert(Camera * camera, unsigned char * buf);
static void _refresh_convert_yuv(uint8_t y, uint8_t u, uint8_t v,
static void _refresh_convert_yuv(int amp, uint8_t y, uint8_t u, uint8_t v,
uint8_t * r, uint8_t * g, uint8_t * b);
static gboolean _camera_on_refresh(gpointer data)
@ -506,13 +510,15 @@ static void _refresh_convert(Camera * camera, unsigned char * buf)
i += 4, j += 6)
{
/* pixel 0 */
_refresh_convert_yuv(camera->buffer[i],
_refresh_convert_yuv(camera->yuv_amp,
camera->buffer[i],
camera->buffer[i + 1],
camera->buffer[i + 3],
&buf[j + 2], &buf[j + 1],
&buf[j]);
/* pixel 1 */
_refresh_convert_yuv(camera->buffer[i + 2],
_refresh_convert_yuv(camera->yuv_amp,
camera->buffer[i + 2],
camera->buffer[i + 1],
camera->buffer[i + 3],
&buf[j + 5], &buf[j + 4],
@ -528,10 +534,9 @@ static void _refresh_convert(Camera * camera, unsigned char * buf)
}
}
static void _refresh_convert_yuv(uint8_t y, uint8_t u, uint8_t v,
static void _refresh_convert_yuv(int amp, uint8_t y, uint8_t u, uint8_t v,
uint8_t * r, uint8_t * g, uint8_t * b)
{
const int amp = 255;
double dr;
double dg;
double db;