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[media] gspca_zc3xx: Fix setting of jpeg quality while streaming

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When the user changes the JPEG quality while the camera is streaming, the
driver should not only change the JPEG headers send to userspace, but also
actually tell the camera to use a different quantization table.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2012-05-06 09:28:23 -03:00 committed by Mauro Carvalho Chehab
parent 45432d41a2
commit fba11fed8a
1 changed files with 3 additions and 2 deletions
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5
drivers/media/video/gspca/zc3xx.c
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@ -5923,6 +5923,8 @@ static void setquality(struct gspca_dev *gspca_dev)
struct sd *sd = (struct sd *) gspca_dev; struct sd *sd = (struct sd *) gspca_dev;
s8 reg07; s8 reg07;
jpeg_set_qual(sd->jpeg_hdr, jpeg_qual[sd->reg08]);
reg07 = 0; reg07 = 0;
switch (sd->sensor) { switch (sd->sensor) {
case SENSOR_OV7620: case SENSOR_OV7620:
@ -6886,7 +6888,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
break; break;
} }
setquality(gspca_dev); setquality(gspca_dev);
jpeg_set_qual(sd->jpeg_hdr, jpeg_qual[sd->reg08]);
setlightfreq(gspca_dev); setlightfreq(gspca_dev);
switch (sd->sensor) { switch (sd->sensor) {
@ -7042,7 +7043,7 @@ static int sd_setquality(struct gspca_dev *gspca_dev, __s32 val)
sd->reg08 = i; sd->reg08 = i;
sd->ctrls[QUALITY].val = jpeg_qual[i]; sd->ctrls[QUALITY].val = jpeg_qual[i];
if (gspca_dev->streaming) if (gspca_dev->streaming)
jpeg_set_qual(sd->jpeg_hdr, sd->ctrls[QUALITY].val); setquality(gspca_dev);
return gspca_dev->usb_err; return gspca_dev->usb_err;
} }