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

[linux-2.6-omap-h63xx.git] / drivers / media / video / gspca / stk014.c

diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index d1d54edd80bd94384259f81318dbf03bf12dab48..dd007cb52006dc6fc66e22ddf580355ee065ae64 100644 (file)
--- 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,
 };