#define MODULE_NAME "stk014"
#include "gspca.h"
-#define QUANT_VAL 7 /* quantization table */
- /* <= 4 KO - 7: good (enough!) */
#include "jpeg.h"
MODULE_AUTHOR("Jean-Francois Moine <http://moinejf.free.fr>");
unsigned char contrast;
unsigned char colors;
unsigned char lightfreq;
+ u8 quality;
+
+ u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->lightfreq = FREQ_DEF;
+ sd->quality = 80;
return 0;
}
/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
+ struct sd *sd = (struct sd *) gspca_dev;
int ret, value;
+ /* create the JPEG header */
+ sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
+ jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+ 0x22); /* JPEG 411 */
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+
/* work on alternate 1 */
usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
PDEBUG(D_STREAM, "camera stopped");
}
+static void sd_stop0(struct gspca_dev *gspca_dev)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ kfree(sd->jpeg_hdr);
+}
+
static void sd_pkt_scan(struct gspca_dev *gspca_dev,
struct gspca_frame *frame, /* target */
__u8 *data, /* isoc packet */
int len) /* iso packet length */
{
+ struct sd *sd = (struct sd *) gspca_dev;
static unsigned char ffd9[] = {0xff, 0xd9};
/* a frame starts with:
ffd9, 2);
/* put the JPEG 411 header */
- jpeg_put_header(gspca_dev, frame, 0x22);
+ gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
+ sd->jpeg_hdr, JPEG_HDR_SZ);
/* beginning of the frame */
#define STKHDRSZ 12
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
+ .stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
};