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-rw-r--r--Documentation/video4linux/CARDLIST.bttv1
-rw-r--r--drivers/media/video/gspca/conex.c21
-rw-r--r--drivers/media/video/gspca/jpeg.h250
-rw-r--r--drivers/media/video/gspca/mars.c23
-rw-r--r--drivers/media/video/gspca/sonixj.c94
-rw-r--r--drivers/media/video/gspca/spca500.c22
-rw-r--r--drivers/media/video/gspca/stk014.c25
-rw-r--r--drivers/media/video/gspca/sunplus.c22
-rw-r--r--drivers/media/video/gspca/zc3xx.c18
9 files changed, 226 insertions, 250 deletions
diff --git a/Documentation/video4linux/CARDLIST.bttv b/Documentation/video4linux/CARDLIST.bttv
index e17750473e0..f11c583295e 100644
--- a/Documentation/video4linux/CARDLIST.bttv
+++ b/Documentation/video4linux/CARDLIST.bttv
@@ -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]
diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index de2e608bf5b..fd4df402bc2 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -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;
}
diff --git a/drivers/media/video/gspca/jpeg.h b/drivers/media/video/gspca/jpeg.h
index 7d2df972002..de63c36806c 100644
--- a/drivers/media/video/gspca/jpeg.h
+++ b/drivers/media/video/gspca/jpeg.h
@@ -27,42 +27,16 @@
/*
* generation options
* CONEX_CAM Conexant if present
- * QUANT_VAL quantization table (0..8)
*/
-/*
- * JPEG header:
- * - start of jpeg frame
- * - quantization table
- * - huffman table
- * - start of SOF0
- */
+/* JPEG header */
static const u8 jpeg_head[] = {
0xff, 0xd8, /* jpeg */
+
+/* quantization table quality 50% */
0xff, 0xdb, 0x00, 0x84, /* DQT */
-#if QUANT_VAL == 0
-/* index 0 - Q40*/
-0, /* quantization table part 1 */
- 0x14, 0x0e, 0x0f, 0x12, 0x0f, 0x0d, 0x14, 0x12,
- 0x10, 0x12, 0x17, 0x15, 0x14, 0x18, 0x1e, 0x32,
- 0x21, 0x1e, 0x1c, 0x1c, 0x1e, 0x3d, 0x2c, 0x2e,
- 0x24, 0x32, 0x49, 0x40, 0x4c, 0x4b, 0x47, 0x40,
- 0x46, 0x45, 0x50, 0x5a, 0x73, 0x62, 0x50, 0x55,
- 0x6d, 0x56, 0x45, 0x46, 0x64, 0x88, 0x65, 0x6d,
- 0x77, 0x7b, 0x81, 0x82, 0x81, 0x4e, 0x60, 0x8d,
- 0x97, 0x8c, 0x7d, 0x96, 0x73, 0x7e, 0x81, 0x7c,
-1, /* quantization table part 2 */
- 0x15, 0x17, 0x17, 0x1e, 0x1a, 0x1e, 0x3b, 0x21,
- 0x21, 0x3b, 0x7c, 0x53, 0x46, 0x53, 0x7c, 0x0c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
- 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c, 0x7c,
-#elif QUANT_VAL == 1
-/* index 1 - Q50 */
0,
+#define JPEG_QT0_OFFSET 7
0x10, 0x0b, 0x0c, 0x0e, 0x0c, 0x0a, 0x10, 0x0e,
0x0d, 0x0e, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28,
0x1a, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25,
@@ -72,6 +46,7 @@ static const u8 jpeg_head[] = {
0x5f, 0x62, 0x67, 0x68, 0x67, 0x3e, 0x4d, 0x71,
0x79, 0x70, 0x64, 0x78, 0x5c, 0x65, 0x67, 0x63,
1,
+#define JPEG_QT1_OFFSET 72
0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2f, 0x1a,
0x1a, 0x2f, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
@@ -80,149 +55,6 @@ static const u8 jpeg_head[] = {
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
-#elif QUANT_VAL == 2
-/* index 2 Q60 */
-0,
- 0x0d, 0x09, 0x0a, 0x0b, 0x0a, 0x08, 0x0d, 0x0b,
- 0x0a, 0x0b, 0x0e, 0x0e, 0x0d, 0x0f, 0x13, 0x20,
- 0x15, 0x13, 0x12, 0x12, 0x13, 0x27, 0x1c, 0x1e,
- 0x17, 0x20, 0x2e, 0x29, 0x31, 0x30, 0x2e, 0x29,
- 0x2d, 0x2c, 0x33, 0x3a, 0x4a, 0x3e, 0x33, 0x36,
- 0x46, 0x37, 0x2c, 0x2d, 0x40, 0x57, 0x41, 0x46,
- 0x4c, 0x4e, 0x52, 0x53, 0x52, 0x32, 0x3e, 0x5a,
- 0x61, 0x5a, 0x50, 0x60, 0x4a, 0x51, 0x52, 0x4f,
-1,
- 0x0e, 0x0e, 0x0e, 0x13, 0x11, 0x13, 0x26, 0x15,
- 0x15, 0x26, 0x4f, 0x35, 0x2d, 0x35, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
- 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f, 0x4f,
-#elif QUANT_VAL == 3
-/* index 3 - Q70 */
-0,
- 0x0a, 0x07, 0x07, 0x08, 0x07, 0x06, 0x0a, 0x08,
- 0x08, 0x08, 0x0b, 0x0a, 0x0a, 0x0b, 0x0e, 0x18,
- 0x10, 0x0e, 0x0d, 0x0d, 0x0e, 0x1d, 0x15, 0x16,
- 0x11, 0x18, 0x23, 0x1f, 0x25, 0x24, 0x22, 0x1f,
- 0x22, 0x21, 0x26, 0x2b, 0x37, 0x2f, 0x26, 0x29,
- 0x34, 0x29, 0x21, 0x22, 0x30, 0x41, 0x31, 0x34,
- 0x39, 0x3b, 0x3e, 0x3e, 0x3e, 0x25, 0x2e, 0x44,
- 0x49, 0x43, 0x3c, 0x48, 0x37, 0x3d, 0x3e, 0x3b,
-1,
- 0x0a, 0x0b, 0x0b, 0x0e, 0x0d, 0x0e, 0x1c, 0x10,
- 0x10, 0x1c, 0x3b, 0x28, 0x22, 0x28, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
- 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b, 0x3b,
-#elif QUANT_VAL == 4
-/* index 4 - Q80 */
-0,
- 0x06, 0x04, 0x05, 0x06, 0x05, 0x04, 0x06, 0x06,
- 0x05, 0x06, 0x07, 0x07, 0x06, 0x08, 0x0a, 0x10,
- 0x0a, 0x0a, 0x09, 0x09, 0x0a, 0x14, 0x0e, 0x0f,
- 0x0c, 0x10, 0x17, 0x14, 0x18, 0x18, 0x17, 0x14,
- 0x16, 0x16, 0x1a, 0x1d, 0x25, 0x1f, 0x1a, 0x1b,
- 0x23, 0x1c, 0x16, 0x16, 0x20, 0x2c, 0x20, 0x23,
- 0x26, 0x27, 0x29, 0x2a, 0x29, 0x19, 0x1f, 0x2d,
- 0x30, 0x2d, 0x28, 0x30, 0x25, 0x28, 0x29, 0x28,
-1,
- 0x07, 0x07, 0x07, 0x0a, 0x08, 0x0a, 0x13, 0x0a,
- 0x0a, 0x13, 0x28, 0x1a, 0x16, 0x1a, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
- 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
-#elif QUANT_VAL == 5
-/* index 5 - Q85 */
-0,
- 0x05, 0x03, 0x04, 0x04, 0x04, 0x03, 0x05, 0x04,
- 0x04, 0x04, 0x05, 0x05, 0x05, 0x06, 0x07, 0x0c,
- 0x08, 0x07, 0x07, 0x07, 0x07, 0x0f, 0x0b, 0x0b,
- 0x09, 0x0c, 0x11, 0x0f, 0x12, 0x12, 0x11, 0x0f,
- 0x11, 0x11, 0x13, 0x16, 0x1c, 0x17, 0x13, 0x14,
- 0x1a, 0x15, 0x11, 0x11, 0x18, 0x21, 0x18, 0x1a,
- 0x1d, 0x1d, 0x1f, 0x1f, 0x1f, 0x13, 0x17, 0x22,
- 0x24, 0x22, 0x1e, 0x24, 0x1c, 0x1e, 0x1f, 0x1e,
-1,
- 0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x0e, 0x08,
- 0x08, 0x0e, 0x1e, 0x14, 0x11, 0x14, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
- 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e, 0x1e,
-#elif QUANT_VAL == 6
-/* index 6 - 86 */
-0,
- 0x04, 0x03, 0x03, 0x04, 0x03, 0x03, 0x04, 0x04,
- 0x04, 0x04, 0x05, 0x05, 0x04, 0x05, 0x07, 0x0B,
- 0x07, 0x07, 0x06, 0x06, 0x07, 0x0e, 0x0a, 0x0a,
- 0x08, 0x0B, 0x10, 0x0e, 0x11, 0x11, 0x10, 0x0e,
- 0x10, 0x0f, 0x12, 0x14, 0x1a, 0x16, 0x12, 0x13,
- 0x18, 0x13, 0x0f, 0x10, 0x16, 0x1f, 0x17, 0x18,
- 0x1b, 0x1b, 0x1d, 0x1d, 0x1d, 0x11, 0x16, 0x20,
- 0x22, 0x1f, 0x1c, 0x22, 0x1a, 0x1c, 0x1d, 0x1c,
-1,
- 0x05, 0x05, 0x05, 0x07, 0x06, 0x07, 0x0D, 0x07,
- 0x07, 0x0D, 0x1c, 0x12, 0x10, 0x12, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
- 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c, 0x1c,
-#elif QUANT_VAL == 7
-/* index 7 - 88 */
-0,
- 0x04, 0x03, 0x03, 0x03, 0x03, 0x02, 0x04, 0x03,
- 0x03, 0x03, 0x04, 0x04, 0x04, 0x05, 0x06, 0x0a,
- 0x06, 0x06, 0x05, 0x05, 0x06, 0x0C, 0x08, 0x09,
- 0x07, 0x0a, 0x0e, 0x0c, 0x0f, 0x0e, 0x0e, 0x0c,
- 0x0d, 0x0d, 0x0f, 0x11, 0x16, 0x13, 0x0f, 0x10,
- 0x15, 0x11, 0x0d, 0x0d, 0x13, 0x1a, 0x13, 0x15,
- 0x17, 0x18, 0x19, 0x19, 0x19, 0x0f, 0x12, 0x1b,
- 0x1d, 0x1b, 0x18, 0x1d, 0x16, 0x18, 0x19, 0x18,
-1,
- 0x04, 0x04, 0x04, 0x06, 0x05, 0x06, 0x0B, 0x06,
- 0x06, 0x0B, 0x18, 0x10, 0x0d, 0x10, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
- 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18,
-#elif QUANT_VAL == 8
-/* index 8 - ?? */
-0,
- 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
- 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x05,
- 0x03, 0x03, 0x03, 0x03, 0x03, 0x06, 0x04, 0x05,
- 0x04, 0x05, 0x07, 0x06, 0x08, 0x08, 0x07, 0x06,
- 0x07, 0x07, 0x08, 0x09, 0x0c, 0x0a, 0x08, 0x09,
- 0x0B, 0x09, 0x07, 0x07, 0x0a, 0x0e, 0x0a, 0x0b,
- 0x0c, 0x0c, 0x0d, 0x0d, 0x0d, 0x08, 0x0a, 0x0e,
- 0x0f, 0x0e, 0x0d, 0x0f, 0x0c, 0x0d, 0x0d, 0x0c,
-1,
- 0x02, 0x02, 0x02, 0x03, 0x03, 0x03, 0x06, 0x03,
- 0x03, 0x06, 0x0c, 0x08, 0x07, 0x08, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
- 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c,
-#else
-#error "Invalid quantization table"
-#endif
/* huffman table */
0xff, 0xc4, 0x01, 0xa2,
@@ -280,55 +112,57 @@ static const u8 jpeg_head[] = {
0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa,
#ifdef CONEX_CAM
/* the Conexant frames start with SOF0 */
+#define JPEG_HDR_SZ 556
#else
0xff, 0xc0, 0x00, 0x11, /* SOF0 (start of frame 0 */
0x08, /* data precision */
-#endif
-};
-
-#ifndef CONEX_CAM
-/* variable part:
- * 0x01, 0xe0, height
- * 0x02, 0x80, width
- * 0x03, component number
- * 0x01,
- * 0x21, samples Y
- */
-
-/* end of header */
-static u8 eoh[] = {
+#define JPEG_HEIGHT_OFFSET 561
+ 0x01, 0xe0, /* height */
+ 0x02, 0x80, /* width */
+ 0x03, /* component number */
+ 0x01,
+ 0x21, /* samples Y */
0x00, /* quant Y */
0x02, 0x11, 0x01, /* samples CbCr - quant CbCr */
0x03, 0x11, 0x01,
0xff, 0xda, 0x00, 0x0c, /* SOS (start of scan) */
0x03, 0x01, 0x00, 0x02, 0x11, 0x03, 0x11, 0x00, 0x3f, 0x00
-};
+#define JPEG_HDR_SZ 589
#endif
+};
-/* -- output the JPEG header -- */
-static void jpeg_put_header(struct gspca_dev *gspca_dev,
- struct gspca_frame *frame,
- int samplesY)
+/* define the JPEG header */
+static void jpeg_define(u8 *jpeg_hdr,
+ int height,
+ int width,
+ int samplesY)
{
+ memcpy(jpeg_hdr, jpeg_head, sizeof jpeg_head);
#ifndef CONEX_CAM
- u8 tmpbuf[8];
+ jpeg_hdr[JPEG_HEIGHT_OFFSET + 0] = height >> 8;
+ jpeg_hdr[JPEG_HEIGHT_OFFSET + 1] = height & 0xff;
+ jpeg_hdr[JPEG_HEIGHT_OFFSET + 2] = width >> 8;
+ jpeg_hdr[JPEG_HEIGHT_OFFSET + 3] = width & 0xff;
+ jpeg_hdr[JPEG_HEIGHT_OFFSET + 6] = samplesY;
#endif
+}
- gspca_frame_add(gspca_dev, FIRST_PACKET, frame,
- jpeg_head, sizeof jpeg_head);
-#ifndef CONEX_CAM
- tmpbuf[0] = gspca_dev->height >> 8;
- tmpbuf[1] = gspca_dev->height & 0xff;
- tmpbuf[2] = gspca_dev->width >> 8;
- tmpbuf[3] = gspca_dev->width & 0xff;
- tmpbuf[4] = 0x03; /* component number */
- tmpbuf[5] = 0x01; /* first component */
- tmpbuf[6] = samplesY;
- gspca_frame_add(gspca_dev, INTER_PACKET, frame,
- tmpbuf, 7);
- gspca_frame_add(gspca_dev, INTER_PACKET, frame,
- eoh, sizeof eoh);
-#endif
+/* set the JPEG quality */
+static void jpeg_set_qual(u8 *jpeg_hdr,
+ int quality)
+{
+ int i, sc;
+
+ if (quality < 50)
+ sc = 5000 / quality;
+ else
+ sc = 200 - quality * 2;
+ for (i = 0; i < 64; i++) {
+ jpeg_hdr[JPEG_QT0_OFFSET + i] =
+ (jpeg_head[JPEG_QT0_OFFSET + i] * sc + 50) / 100;
+ jpeg_hdr[JPEG_QT1_OFFSET + i] =
+ (jpeg_head[JPEG_QT1_OFFSET + i] * sc + 50) / 100;
+ }
}
#endif
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index ce065d363e8..6eb813e7b71 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -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,
};
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index edc26d8ad2a..363c0fa39d9 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -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,
};
diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c
index f44613095d2..2176ac6850e 100644
--- a/drivers/media/video/gspca/spca500.c
+++ b/drivers/media/video/gspca/spca500.c
@@ -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,
};
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index d1d54edd80b..dd007cb5200 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -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,
};
diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c
index 9d08a66fe23..eadfaa9f97d 100644
--- a/drivers/media/video/gspca/sunplus.c
+++ b/drivers/media/video/gspca/sunplus.c
@@ -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,
};
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index 4f459a74603..a4c673ff8f0 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -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)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 09:30:04 +0000