diff options
Diffstat (limited to 'drivers/media/video/gspca/stk014.c')
| -rw-r--r-- | drivers/media/video/gspca/stk014.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c index d1d54edd80bd..dd007cb52006 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, }; |