diff options
Diffstat (limited to 'include/uapi/linux/videodev2.h')
| -rw-r--r-- | include/uapi/linux/videodev2.h | 101 |
1 files changed, 95 insertions, 6 deletions
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index fbdc3602ee27..3228fbebcd63 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -178,6 +178,12 @@ enum v4l2_memory { /* see also http://vektor.theorem.ca/graphics/ycbcr/ */ enum v4l2_colorspace { + /* + * Default colorspace, i.e. let the driver figure it out. + * Can only be used with video capture. + */ + V4L2_COLORSPACE_DEFAULT = 0, + /* SMPTE 170M: used for broadcast NTSC/PAL SDTV */ V4L2_COLORSPACE_SMPTE170M = 1, @@ -220,8 +226,56 @@ enum v4l2_colorspace { /* BT.2020 colorspace, used for UHDTV. */ V4L2_COLORSPACE_BT2020 = 10, + + /* Raw colorspace: for RAW unprocessed images */ + V4L2_COLORSPACE_RAW = 11, +}; + +/* + * Determine how COLORSPACE_DEFAULT should map to a proper colorspace. + * This depends on whether this is a SDTV image (use SMPTE 170M), an + * HDTV image (use Rec. 709), or something else (use sRGB). + */ +#define V4L2_MAP_COLORSPACE_DEFAULT(is_sdtv, is_hdtv) \ + ((is_sdtv) ? V4L2_COLORSPACE_SMPTE170M : \ + ((is_hdtv) ? V4L2_COLORSPACE_REC709 : V4L2_COLORSPACE_SRGB)) + +enum v4l2_xfer_func { + /* + * Mapping of V4L2_XFER_FUNC_DEFAULT to actual transfer functions + * for the various colorspaces: + * + * V4L2_COLORSPACE_SMPTE170M, V4L2_COLORSPACE_470_SYSTEM_M, + * V4L2_COLORSPACE_470_SYSTEM_BG, V4L2_COLORSPACE_REC709 and + * V4L2_COLORSPACE_BT2020: V4L2_XFER_FUNC_709 + * + * V4L2_COLORSPACE_SRGB, V4L2_COLORSPACE_JPEG: V4L2_XFER_FUNC_SRGB + * + * V4L2_COLORSPACE_ADOBERGB: V4L2_XFER_FUNC_ADOBERGB + * + * V4L2_COLORSPACE_SMPTE240M: V4L2_XFER_FUNC_SMPTE240M + * + * V4L2_COLORSPACE_RAW: V4L2_XFER_FUNC_NONE + */ + V4L2_XFER_FUNC_DEFAULT = 0, + V4L2_XFER_FUNC_709 = 1, + V4L2_XFER_FUNC_SRGB = 2, + V4L2_XFER_FUNC_ADOBERGB = 3, + V4L2_XFER_FUNC_SMPTE240M = 4, + V4L2_XFER_FUNC_NONE = 5, }; +/* + * Determine how XFER_FUNC_DEFAULT should map to a proper transfer function. + * This depends on the colorspace. + */ +#define V4L2_MAP_XFER_FUNC_DEFAULT(colsp) \ + ((colsp) == V4L2_COLORSPACE_ADOBERGB ? V4L2_XFER_FUNC_ADOBERGB : \ + ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_XFER_FUNC_SMPTE240M : \ + ((colsp) == V4L2_COLORSPACE_RAW ? V4L2_XFER_FUNC_NONE : \ + ((colsp) == V4L2_COLORSPACE_SRGB || (colsp) == V4L2_COLORSPACE_JPEG ? \ + V4L2_XFER_FUNC_SRGB : V4L2_XFER_FUNC_709)))) + enum v4l2_ycbcr_encoding { /* * Mapping of V4L2_YCBCR_ENC_DEFAULT to actual encodings for the @@ -266,17 +320,39 @@ enum v4l2_ycbcr_encoding { V4L2_YCBCR_ENC_SMPTE240M = 8, }; +/* + * Determine how YCBCR_ENC_DEFAULT should map to a proper Y'CbCr encoding. + * This depends on the colorspace. + */ +#define V4L2_MAP_YCBCR_ENC_DEFAULT(colsp) \ + ((colsp) == V4L2_COLORSPACE_REC709 ? V4L2_YCBCR_ENC_709 : \ + ((colsp) == V4L2_COLORSPACE_BT2020 ? V4L2_YCBCR_ENC_BT2020 : \ + ((colsp) == V4L2_COLORSPACE_SMPTE240M ? V4L2_YCBCR_ENC_SMPTE240M : \ + V4L2_YCBCR_ENC_601))) + enum v4l2_quantization { /* - * The default for R'G'B' quantization is always full range. For - * Y'CbCr the quantization is always limited range, except for - * SYCC, XV601, XV709 or JPEG: those are full range. + * The default for R'G'B' quantization is always full range, except + * for the BT2020 colorspace. For Y'CbCr the quantization is always + * limited range, except for COLORSPACE_JPEG, SYCC, XV601 or XV709: + * those are full range. */ V4L2_QUANTIZATION_DEFAULT = 0, V4L2_QUANTIZATION_FULL_RANGE = 1, V4L2_QUANTIZATION_LIM_RANGE = 2, }; +/* + * Determine how QUANTIZATION_DEFAULT should map to a proper quantization. + * This depends on whether the image is RGB or not, the colorspace and the + * Y'CbCr encoding. + */ +#define V4L2_MAP_QUANTIZATION_DEFAULT(is_rgb, colsp, ycbcr_enc) \ + (((is_rgb) && (colsp) == V4L2_COLORSPACE_BT2020) ? V4L2_QUANTIZATION_LIM_RANGE : \ + (((is_rgb) || (ycbcr_enc) == V4L2_YCBCR_ENC_XV601 || \ + (ycbcr_enc) == V4L2_YCBCR_ENC_XV709 || (colsp) == V4L2_COLORSPACE_JPEG) ? \ + V4L2_QUANTIZATION_FULL_RANGE : V4L2_QUANTIZATION_LIM_RANGE)) + enum v4l2_priority { V4L2_PRIORITY_UNSET = 0, /* not initialized */ V4L2_PRIORITY_BACKGROUND = 1, @@ -369,6 +445,7 @@ struct v4l2_pix_format { __u32 flags; /* format flags (V4L2_PIX_FMT_FLAG_*) */ __u32 ycbcr_enc; /* enum v4l2_ycbcr_encoding */ __u32 quantization; /* enum v4l2_quantization */ + __u32 xfer_func; /* enum v4l2_xfer_func */ }; /* Pixel format FOURCC depth Description */ @@ -403,6 +480,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */ #define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale */ #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */ +#define V4L2_PIX_FMT_Y16_BE v4l2_fourcc_be('Y', '1', '6', ' ') /* 16 Greyscale BE */ /* Grey bit-packed formats */ #define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */ @@ -809,6 +887,8 @@ struct v4l2_buffer { #define V4L2_BUF_FLAG_TSTAMP_SRC_MASK 0x00070000 #define V4L2_BUF_FLAG_TSTAMP_SRC_EOF 0x00000000 #define V4L2_BUF_FLAG_TSTAMP_SRC_SOE 0x00010000 +/* mem2mem encoder/decoder */ +#define V4L2_BUF_FLAG_LAST 0x00100000 /** * struct v4l2_exportbuffer - export of video buffer as DMABUF file descriptor @@ -1187,6 +1267,12 @@ 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) \ @@ -1456,6 +1542,7 @@ struct v4l2_querymenu { #define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040 #define V4L2_CTRL_FLAG_VOLATILE 0x0080 #define V4L2_CTRL_FLAG_HAS_PAYLOAD 0x0100 +#define V4L2_CTRL_FLAG_EXECUTE_ON_WRITE 0x0200 /* Query flags, to be ORed with the control ID */ #define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000 @@ -1841,8 +1928,8 @@ struct v4l2_mpeg_vbi_fmt_ivtv { */ struct v4l2_plane_pix_format { __u32 sizeimage; - __u16 bytesperline; - __u16 reserved[7]; + __u32 bytesperline; + __u16 reserved[6]; } __attribute__ ((packed)); /** @@ -1857,6 +1944,7 @@ struct v4l2_plane_pix_format { * @flags: format flags (V4L2_PIX_FMT_FLAG_*) * @ycbcr_enc: enum v4l2_ycbcr_encoding, Y'CbCr encoding * @quantization: enum v4l2_quantization, colorspace quantization + * @xfer_func: enum v4l2_xfer_func, colorspace transfer function */ struct v4l2_pix_format_mplane { __u32 width; @@ -1870,7 +1958,8 @@ struct v4l2_pix_format_mplane { __u8 flags; __u8 ycbcr_enc; __u8 quantization; - __u8 reserved[8]; + __u8 xfer_func; + __u8 reserved[7]; } __attribute__ ((packed)); /** |