V4L/DVB (11040): gspca - most jpeg subdrivers: Have the JPEG quality settable.
The JPEG quality of the images (quantization tables) is now settable by the
VIDIOC_S_JPEGCOMP ioctl.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c
index fd4df40..219cfa6 100644
--- a/drivers/media/video/gspca/conex.c
+++ b/drivers/media/video/gspca/conex.c
@@ -37,6 +37,9 @@
unsigned char contrast;
unsigned char colors;
u8 quality;
+#define QUALITY_MIN 30
+#define QUALITY_MAX 60
+#define QUALITY_DEF 40
u8 *jpeg_hdr;
};
@@ -822,7 +825,7 @@
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
- sd->quality = 40;
+ sd->quality = QUALITY_DEF;
return 0;
}
@@ -1000,6 +1003,34 @@
return 0;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -1010,6 +1041,8 @@
.start = sd_start,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c
index 6eb813e..75e8d14 100644
--- a/drivers/media/video/gspca/mars.c
+++ b/drivers/media/video/gspca/mars.c
@@ -37,6 +37,9 @@
u8 gamma;
u8 sharpness;
u8 quality;
+#define QUALITY_MIN 40
+#define QUALITY_MAX 70
+#define QUALITY_DEF 50
u8 *jpeg_hdr;
};
@@ -178,7 +181,7 @@
sd->colors = COLOR_DEF;
sd->gamma = GAMMA_DEF;
sd->sharpness = SHARPNESS_DEF;
- sd->quality = 50;
+ sd->quality = QUALITY_DEF;
gspca_dev->nbalt = 9; /* use the altsetting 08 */
return 0;
}
@@ -445,6 +448,34 @@
return 0;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -456,6 +487,8 @@
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 363c0fa..7d0d949 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -47,6 +47,9 @@
u8 vflip; /* ov7630/ov7648 only */
u8 infrared; /* mt9v111 only */
u8 quality; /* image quality */
+#define QUALITY_MIN 60
+#define QUALITY_MAX 95
+#define QUALITY_DEF 80
u8 jpegqual; /* webcam quality */
u8 reg18;
@@ -1295,7 +1298,7 @@
else
sd->vflip = 1;
sd->infrared = INFRARED_DEF;
- sd->quality = 80;
+ sd->quality = QUALITY_DEF;
sd->jpegqual = 80;
gspca_dev->ctrl_dis = ctrl_dis[sd->sensor];
@@ -2130,6 +2133,34 @@
return 0;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -2142,6 +2173,8 @@
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.dq_callback = do_autogain,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/spca500.c b/drivers/media/video/gspca/spca500.c
index 2176ac6..6f38fa6 100644
--- a/drivers/media/video/gspca/spca500.c
+++ b/drivers/media/video/gspca/spca500.c
@@ -39,6 +39,9 @@
unsigned char contrast;
unsigned char colors;
u8 quality;
+#define QUALITY_MIN 70
+#define QUALITY_MAX 95
+#define QUALITY_DEF 85
char subtype;
#define AgfaCl20 0
@@ -642,7 +645,7 @@
sd->brightness = BRIGHTNESS_DEF;
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
- sd->quality = 85;
+ sd->quality = QUALITY_DEF;
return 0;
}
@@ -1021,6 +1024,34 @@
return 0;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -1032,6 +1063,8 @@
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/stk014.c b/drivers/media/video/gspca/stk014.c
index dd007cb..f25be20 100644
--- a/drivers/media/video/gspca/stk014.c
+++ b/drivers/media/video/gspca/stk014.c
@@ -36,6 +36,9 @@
unsigned char colors;
unsigned char lightfreq;
u8 quality;
+#define QUALITY_MIN 60
+#define QUALITY_MAX 95
+#define QUALITY_DEF 80
u8 *jpeg_hdr;
};
@@ -301,7 +304,7 @@
sd->contrast = CONTRAST_DEF;
sd->colors = COLOR_DEF;
sd->lightfreq = FREQ_DEF;
- sd->quality = 80;
+ sd->quality = QUALITY_DEF;
return 0;
}
@@ -535,6 +538,34 @@
return -EINVAL;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -547,6 +578,8 @@
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/sunplus.c b/drivers/media/video/gspca/sunplus.c
index eadfaa9..c2b8c10 100644
--- a/drivers/media/video/gspca/sunplus.c
+++ b/drivers/media/video/gspca/sunplus.c
@@ -40,6 +40,9 @@
unsigned char colors;
unsigned char autogain;
u8 quality;
+#define QUALITY_MIN 70
+#define QUALITY_MAX 95
+#define QUALITY_DEF 85
char bridge;
#define BRIDGE_SPCA504 0
@@ -854,7 +857,7 @@
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;
+ sd->quality = QUALITY_DEF;
return 0;
}
@@ -1319,6 +1322,34 @@
return 0;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
/* sub-driver description */
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
@@ -1330,6 +1361,8 @@
.stopN = sd_stopN,
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
/* -- module initialisation -- */
diff --git a/drivers/media/video/gspca/zc3xx.c b/drivers/media/video/gspca/zc3xx.c
index a4c673f..e4c27a1 100644
--- a/drivers/media/video/gspca/zc3xx.c
+++ b/drivers/media/video/gspca/zc3xx.c
@@ -46,6 +46,9 @@
__u8 lightfreq;
__u8 sharpness;
u8 quality; /* image quality */
+#define QUALITY_MIN 40
+#define QUALITY_MAX 60
+#define QUALITY_DEF 50
signed char sensor; /* Type of image sensor chip */
/* !! values used in different tables */
@@ -7180,7 +7183,7 @@
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;
+ sd->quality = QUALITY_DEF;
switch (sd->sensor) {
case SENSOR_GC0305:
@@ -7536,6 +7539,34 @@
return -EINVAL;
}
+static int sd_set_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ if (jcomp->quality < QUALITY_MIN)
+ sd->quality = QUALITY_MIN;
+ else if (jcomp->quality > QUALITY_MAX)
+ sd->quality = QUALITY_MAX;
+ else
+ sd->quality = jcomp->quality;
+ if (gspca_dev->streaming)
+ jpeg_set_qual(sd->jpeg_hdr, sd->quality);
+ return 0;
+}
+
+static int sd_get_jcomp(struct gspca_dev *gspca_dev,
+ struct v4l2_jpegcompression *jcomp)
+{
+ struct sd *sd = (struct sd *) gspca_dev;
+
+ memset(jcomp, 0, sizeof *jcomp);
+ jcomp->quality = sd->quality;
+ jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
+ | V4L2_JPEG_MARKER_DQT;
+ return 0;
+}
+
static const struct sd_desc sd_desc = {
.name = MODULE_NAME,
.ctrls = sd_ctrls,
@@ -7546,6 +7577,8 @@
.stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan,
.querymenu = sd_querymenu,
+ .get_jcomp = sd_get_jcomp,
+ .set_jcomp = sd_set_jcomp,
};
static const __devinitdata struct usb_device_id device_table[] = {