Commit 71cb2764 authored by Jean-Francois Moine's avatar Jean-Francois Moine Committed by Mauro Carvalho Chehab

V4L/DVB (11039): gspca - most jpeg subdrivers: Change the JPEG header creation.

Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent c98afbfc
......@@ -157,3 +157,4 @@
156 -> IVCE-8784 [0000:f050,0001:f050,0002:f050,0003:f050]
157 -> Geovision GV-800(S) (master) [800a:763d]
158 -> Geovision GV-800(S) (slave) [800b:763d,800c:763d,800d:763d]
159 -> ProVideo PV183 [1830:1540,1831:1540,1832:1540,1833:1540,1834:1540,1835:1540,1836:1540,1837:1540]
......@@ -23,7 +23,6 @@
#include "gspca.h"
#define CONEX_CAM 1 /* special JPEG header */
#define QUANT_VAL 0 /* quantization table */
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
......@@ -37,6 +36,9 @@ struct sd {
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
u8 quality;
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -820,6 +822,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->quality = 40;
return 0;
}
......@@ -836,6 +839,14 @@ static int sd_init(struct gspca_dev *gspca_dev)
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
/* 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);
cx11646_initsize(gspca_dev);
cx11646_fw(gspca_dev);
cx_sensor(gspca_dev);
......@@ -846,8 +857,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* called on streamoff with alt 0 and on disconnect */
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int retry = 50;
kfree(sd->jpeg_hdr);
if (!gspca_dev->present)
return;
reg_w_val(gspca_dev, 0x0000, 0x00);
......@@ -873,6 +887,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
__u8 *data, /* isoc packet */
int len) /* iso packet length */
{
struct sd *sd = (struct sd *) gspca_dev;
if (data[0] == 0xff && data[1] == 0xd8) {
/* start of frame */
......@@ -880,7 +896,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
data, 0);
/* put the JPEG header in the new frame */
jpeg_put_header(gspca_dev, frame, 0x22);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
data += 2;
len -= 2;
}
......
This diff is collapsed.
......@@ -22,7 +22,6 @@
#define MODULE_NAME "mars"
#include "gspca.h"
#define QUANT_VAL 1 /* quantization table */
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
......@@ -37,6 +36,9 @@ struct sd {
u8 colors;
u8 gamma;
u8 sharpness;
u8 quality;
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -176,6 +178,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->colors = COLOR_DEF;
sd->gamma = GAMMA_DEF;
sd->sharpness = SHARPNESS_DEF;
sd->quality = 50;
gspca_dev->nbalt = 9; /* use the altsetting 08 */
return 0;
}
......@@ -193,6 +196,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
u8 *data;
int i;
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
data = gspca_dev->usb_buf;
data[0] = 0x01; /* address */
......@@ -303,11 +312,19 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
PDEBUG(D_ERR, "Camera Stop failed");
}
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;
int p;
if (len < 6) {
......@@ -330,7 +347,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
frame, data, p);
/* put the JPEG header */
jpeg_put_header(gspca_dev, frame, 0x21);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
data += p + 16;
len -= p + 16;
break;
......@@ -436,6 +454,7 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
};
......
......@@ -22,7 +22,6 @@
#define MODULE_NAME "sonixj"
#include "gspca.h"
#define QUANT_VAL 4 /* quantization table */
#include "jpeg.h"
#define V4L2_CID_INFRARED (V4L2_CID_PRIVATE_BASE + 0)
......@@ -47,6 +46,10 @@ struct sd {
u8 gamma;
u8 vflip; /* ov7630/ov7648 only */
u8 infrared; /* mt9v111 only */
u8 quality; /* image quality */
u8 jpegqual; /* webcam quality */
u8 reg18;
s8 ag_cnt;
#define AG_CNT_START 13
......@@ -68,6 +71,8 @@ struct sd {
#define SENSOR_OV7660 7
#define SENSOR_SP80708 8
u8 i2c_base;
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -859,25 +864,6 @@ static const u8 sp80708_sensor_init[][8] = {
{}
};
static const u8 qtable4[] = {
0x06, 0x04, 0x04, 0x06, 0x04, 0x04, 0x06, 0x06,
0x06, 0x06, 0x08, 0x06, 0x06, 0x08, 0x0a, 0x11,
0x0a, 0x0a, 0x08, 0x08, 0x0a, 0x15, 0x0f, 0x0f,
0x0c, 0x11, 0x19, 0x15, 0x19, 0x19, 0x17, 0x15,
0x17, 0x17, 0x1b, 0x1d, 0x25, 0x21, 0x1b, 0x1d,
0x23, 0x1d, 0x17, 0x17, 0x21, 0x2e, 0x21, 0x23,
0x27, 0x29, 0x2c, 0x2c, 0x2c, 0x19, 0x1f, 0x30,
0x32, 0x2e, 0x29, 0x32, 0x25, 0x29, 0x2c, 0x29,
0x06, 0x08, 0x08, 0x0a, 0x08, 0x0a, 0x13, 0x0a,
0x0a, 0x13, 0x29, 0x1b, 0x17, 0x1b, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29
};
/* read <len> bytes to gspca_dev->usb_buf */
static void reg_r(struct gspca_dev *gspca_dev,
u16 value, int len)
......@@ -1309,6 +1295,8 @@ static int sd_config(struct gspca_dev *gspca_dev,
else
sd->vflip = 1;
sd->infrared = INFRARED_DEF;
sd->quality = 80;
sd->jpegqual = 80;
gspca_dev->ctrl_dis = ctrl_dis[sd->sensor];
return 0;
......@@ -1610,12 +1598,49 @@ static void setinfrared(struct sd *sd)
sd->infrared ? 0x66 : 0x64);
}
static void setjpegqual(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i, sc;
if (sd->jpegqual < 50)
sc = 5000 / sd->jpegqual;
else
sc = 200 - sd->jpegqual * 2;
#if USB_BUF_SZ < 64
#error "No room enough in usb_buf for quantization table"
#endif
for (i = 0; i < 64; i++)
gspca_dev->usb_buf[i] =
(jpeg_head[JPEG_QT0_OFFSET + i] * sc + 50) / 100;
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0x08,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
0x0100, 0,
gspca_dev->usb_buf, 64,
500);
for (i = 0; i < 64; i++)
gspca_dev->usb_buf[i] =
(jpeg_head[JPEG_QT1_OFFSET + i] * sc + 50) / 100;
usb_control_msg(gspca_dev->dev,
usb_sndctrlpipe(gspca_dev->dev, 0),
0x08,
USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_INTERFACE,
0x0140, 0,
gspca_dev->usb_buf, 64,
500);
sd->reg18 ^= 0x40;
reg_w1(gspca_dev, 0x18, sd->reg18);
}
/* -- start the camera -- */
static int sd_start(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
int i;
u8 reg1, reg17, reg18;
u8 reg1, reg17;
const u8 *sn9c1xx;
int mode;
static const u8 C0[] = { 0x2d, 0x2d, 0x3a, 0x05, 0x04, 0x3f };
......@@ -1624,6 +1649,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
static const u8 CE_ov76xx[] =
{ 0x32, 0xdd, 0x32, 0xdd };
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
sn9c1xx = sn_tb[(int) sd->sensor];
configure_gpio(gspca_dev, sn9c1xx);
......@@ -1782,13 +1813,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
}
/* here change size mode 0 -> VGA; 1 -> CIF */
reg18 = sn9c1xx[0x18] | (mode << 4);
reg_w1(gspca_dev, 0x18, reg18 | 0x40);
reg_w(gspca_dev, 0x0100, qtable4, 0x40);
reg_w(gspca_dev, 0x0140, qtable4 + 0x40, 0x40);
reg_w1(gspca_dev, 0x18, reg18);
sd->reg18 = sn9c1xx[0x18] | (mode << 4) | 0x40;
reg_w1(gspca_dev, 0x18, sd->reg18);
setjpegqual(gspca_dev);
reg_w1(gspca_dev, 0x17, reg17);
reg_w1(gspca_dev, 0x01, reg1);
......@@ -1845,6 +1872,13 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
reg_w1(gspca_dev, 0xf1, 0x00);
}
static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
}
static void do_autogain(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
......@@ -1928,7 +1962,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
if (gspca_dev->last_packet_type == LAST_PACKET) {
/* put the JPEG 422 header */
jpeg_put_header(gspca_dev, frame, 0x21);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
}
gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len);
}
......@@ -2104,6 +2139,7 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
};
......
......@@ -22,7 +22,6 @@
#define MODULE_NAME "spca500"
#include "gspca.h"
#define QUANT_VAL 5 /* quantization table */
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
......@@ -39,6 +38,7 @@ struct sd {
unsigned char brightness;
unsigned char contrast;
unsigned char colors;
u8 quality;
char subtype;
#define AgfaCl20 0
......@@ -56,6 +56,8 @@ struct sd {
#define Optimedia 12
#define PalmPixDC85 13
#define ToptroIndus 14
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -640,6 +642,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->quality = 85;
return 0;
}
......@@ -665,6 +668,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
__u8 Data;
__u8 xmult, ymult;
/* 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);
if (sd->subtype == LogitechClickSmart310) {
xmult = 0x16;
ymult = 0x12;
......@@ -880,6 +889,13 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
gspca_dev->usb_buf[0]);
}
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 */
......@@ -900,7 +916,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
ffd9, 2);
/* put the JPEG header in the new frame */
jpeg_put_header(gspca_dev, frame, 0x22);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
data += SPCA500_OFFSET_DATA;
len -= SPCA500_OFFSET_DATA;
......@@ -1013,6 +1030,7 @@ static struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
};
......
......@@ -21,8 +21,6 @@
#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>");
......@@ -37,6 +35,9 @@ struct sd {
unsigned char contrast;
unsigned char colors;
unsigned char lightfreq;
u8 quality;
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -300,6 +301,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->lightfreq = FREQ_DEF;
sd->quality = 80;
return 0;
}
......@@ -323,8 +325,15 @@ static int sd_init(struct gspca_dev *gspca_dev)
/* -- 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);
......@@ -396,11 +405,19 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
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:
......@@ -417,7 +434,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
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
......@@ -526,6 +544,7 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
};
......
......@@ -22,7 +22,6 @@
#define MODULE_NAME "sunplus"
#include "gspca.h"
#define QUANT_VAL 5 /* quantization table */
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
......@@ -40,6 +39,7 @@ struct sd {
unsigned char contrast;
unsigned char colors;
unsigned char autogain;
u8 quality;
char bridge;
#define BRIDGE_SPCA504 0
......@@ -52,6 +52,8 @@ struct sd {
#define LogitechClickSmart420 2
#define LogitechClickSmart820 3
#define MegapixV4 4
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -852,6 +854,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value;
sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value;
sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value;
sd->quality = 85;
return 0;
}
......@@ -968,6 +971,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
__u8 i;
__u8 info[6];
/* 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);
if (sd->bridge == BRIDGE_SPCA504B)
spca504B_setQtable(gspca_dev);
spca504B_SetSizeType(gspca_dev);
......@@ -1077,6 +1086,13 @@ static void sd_stopN(struct gspca_dev *gspca_dev)
}
}
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 */
......@@ -1153,7 +1169,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
ffd9, 2);
/* put the JPEG header in the new frame */
jpeg_put_header(gspca_dev, frame, 0x22);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
}
/* add 0x00 after 0xff */
......@@ -1311,6 +1328,7 @@ static const struct sd_desc sd_desc = {
.init = sd_init,
.start = sd_start,
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
};
......
......@@ -23,6 +23,7 @@
#define MODULE_NAME "zc3xx"
#include "gspca.h"
#include "jpeg.h"
MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>, "
"Serge A. Suchkov <Serge.A.S@tochka.ru>");
......@@ -32,7 +33,6 @@ MODULE_LICENSE("GPL");
static int force_sensor = -1;
#define QUANT_VAL 1 /* quantization table */
#include "jpeg.h"
#include "zc3xx-reg.h"
/* specific webcam descriptor */
......@@ -45,6 +45,7 @@ struct sd {
__u8 autogain;
__u8 lightfreq;
__u8 sharpness;
u8 quality; /* image quality */
signed char sensor; /* Type of image sensor chip */
/* !! values used in different tables */
......@@ -69,6 +70,8 @@ struct sd {
#define SENSOR_TAS5130C_VF0250 17
#define SENSOR_MAX 18
unsigned short chip_revision;
u8 *jpeg_hdr;
};
/* V4L2 controls supported by the driver */
......@@ -7177,6 +7180,7 @@ static int sd_config(struct gspca_dev *gspca_dev,
sd->gamma = gamma[(int) sd->sensor];
sd->autogain = sd_ctrls[SD_AUTOGAIN].qctrl.default_value;
sd->lightfreq = sd_ctrls[SD_FREQ].qctrl.default_value;
sd->quality = 50;
switch (sd->sensor) {
case SENSOR_GC0305:
......@@ -7232,6 +7236,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* 17 */
};
/* create the JPEG header */
sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL);
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x21); /* JPEG 422 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
zc3_init = init_tb[(int) sd->sensor][mode];
switch (sd->sensor) {
......@@ -7365,6 +7375,7 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
{
struct sd *sd = (struct sd *) gspca_dev;
kfree(sd->jpeg_hdr);
if (!gspca_dev->present)
return;
send_unknown(gspca_dev->dev, sd->sensor);
......@@ -7375,12 +7386,15 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
__u8 *data,
int len)
{
struct sd *sd = (struct sd *) gspca_dev;
if (data[0] == 0xff && data[1] == 0xd8) { /* start of frame */
frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame,
data, 0);
/* put the JPEG header in the new frame */
jpeg_put_header(gspca_dev, frame, 0x21);
gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
sd->jpeg_hdr, JPEG_HDR_SZ);
/* remove the webcam's header:
* ff d8 ff fe 00 0e 00 00 ss ss 00 01 ww ww hh hh pp pp
* - 'ss ss' is the frame sequence number (BE)
......
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