From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
In the past the V4L2_DV_BT_STD_CEA861 standard bit was used to
determine whether the format is a CE (Consumer Electronics) format
or not. However, the 640x480p59.94 format is part of the CEA-861
standard, but it is *not* a CE video format.
Add a new flag to make this explicit. This information is needed
in order to determine the default R'G'B' encoding for the format:
for CE video this is limited range (16-235) instead of full range
(0-255).
The header with all the timings has been updated with this new
flag.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Cc: Martin Bugge <marbugge@xxxxxxxxx>
Cc: Mats Randgaard <mats.randgaard@xxxxxxxxx>
---
include/uapi/linux/v4l2-dv-timings.h | 64 ++++++++++++++++++++++--------------
include/uapi/linux/videodev2.h | 6 ++++
2 files changed, 45 insertions(+), 25 deletions(-)
diff --git a/include/uapi/linux/v4l2-dv-timings.h b/include/uapi/linux/v4l2-dv-timings.h
index 6c8f159..c039f1d 100644
--- a/include/uapi/linux/v4l2-dv-timings.h
+++ b/include/uapi/linux/v4l2-dv-timings.h
@@ -48,14 +48,15 @@
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 480, 1, 0, \
13500000, 19, 62, 57, 4, 3, 15, 4, 3, 16, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_720X480P59_94 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 480, 0, 0, \
27000000, 16, 62, 60, 9, 6, 30, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
/* Note: these are the nominal timings, for HDMI links this format is typically
@@ -64,14 +65,15 @@
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 576, 1, 0, \
13500000, 12, 63, 69, 2, 3, 19, 2, 3, 20, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_720X576P50 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(720, 576, 0, 0, \
27000000, 12, 64, 68, 5, 5, 39, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P24 { \
@@ -88,7 +90,7 @@
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 2420, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P30 { \
@@ -96,7 +98,8 @@
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 1760, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P50 { \
@@ -104,7 +107,7 @@
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 440, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1280X720P60 { \
@@ -112,7 +115,8 @@
V4L2_INIT_BT_TIMINGS(1280, 720, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 110, 40, 220, 5, 5, 20, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P24 { \
@@ -120,7 +124,8 @@
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 638, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P25 { \
@@ -128,7 +133,7 @@
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 528, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P30 { \
@@ -136,7 +141,8 @@
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 88, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080I50 { \
@@ -144,7 +150,8 @@
V4L2_INIT_BT_TIMINGS(1920, 1080, 1, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 528, 44, 148, 2, 5, 15, 2, 5, 16, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P50 { \
@@ -152,7 +159,7 @@
V4L2_INIT_BT_TIMINGS(1920, 1080, 0, \
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
148500000, 528, 44, 148, 4, 5, 36, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080I60 { \
@@ -161,7 +168,8 @@
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
74250000, 88, 44, 148, 2, 5, 15, 2, 5, 16, \
V4L2_DV_BT_STD_CEA861, \
- V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_HALF_LINE) \
+ V4L2_DV_FL_CAN_REDUCE_FPS | \
+ V4L2_DV_FL_HALF_LINE | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_1920X1080P60 { \
@@ -170,77 +178,83 @@
V4L2_DV_HSYNC_POS_POL | V4L2_DV_VSYNC_POS_POL, \
148500000, 88, 44, 148, 4, 5, 36, 0, 0, 0, \
V4L2_DV_BT_STD_DMT | V4L2_DV_BT_STD_CEA861, \
- V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_3840X2160P24 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 1276, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_3840X2160P25 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 1056, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_3840X2160P30 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 176, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_3840X2160P50 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
594000000, 1056, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_3840X2160P60 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(3840, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
594000000, 176, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_4096X2160P24 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 1020, 88, 296, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_4096X2160P25 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 968, 88, 128, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_4096X2160P30 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
297000000, 88, 88, 128, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_4096X2160P50 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
594000000, 968, 88, 128, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, 0) \
+ V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_IS_CE_VIDEO) \
}
#define V4L2_DV_BT_CEA_4096X2160P60 { \
.type = V4L2_DV_BT_656_1120, \
V4L2_INIT_BT_TIMINGS(4096, 2160, 0, V4L2_DV_HSYNC_POS_POL, \
594000000, 88, 88, 128, 8, 10, 72, 0, 0, 0, \
- V4L2_DV_BT_STD_CEA861, V4L2_DV_FL_CAN_REDUCE_FPS) \
+ V4L2_DV_BT_STD_CEA861, \
+ V4L2_DV_FL_CAN_REDUCE_FPS | V4L2_DV_FL_IS_CE_VIDEO) \
}
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index fbdc360..f62bd34 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1187,6 +1187,12 @@ struct v4l2_bt_timings {
exactly the same number of half-lines. Whether half-lines can be detected
or used depends on the hardware. */
#define V4L2_DV_FL_HALF_LINE (1 << 3)
+/* If set, then this is a Consumer Electronics (CE) video format. Such formats
+ * differ from other formats (commonly called IT formats) in that if RGB
+ * encoding is used then by default the RGB values use limited range (i.e.
+ * use the range 16-235) as opposed to 0-255. All formats defined in CEA-861
+ * except for the 640x480 format are CE formats. */
+#define V4L2_DV_FL_IS_CE_VIDEO (1 << 4)
/* A few useful defines to calculate the total blanking and frame sizes */
#define V4L2_DV_BT_BLANKING_WIDTH(bt) \
--
2.1.4
--
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