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diff --git a/Documentation/media/uapi/v4l/pixfmt-meta-vsp1-hgo.rst b/Documentation/media/uapi/v4l/pixfmt-meta-vsp1-hgo.rst deleted file mode 100644 index f7a861696281..000000000000 --- a/Documentation/media/uapi/v4l/pixfmt-meta-vsp1-hgo.rst +++ /dev/null @@ -1,175 +0,0 @@ -.. Permission is granted to copy, distribute and/or modify this -.. document under the terms of the GNU Free Documentation License, -.. Version 1.1 or any later version published by the Free Software -.. Foundation, with no Invariant Sections, no Front-Cover Texts -.. and no Back-Cover Texts. A copy of the license is included at -.. Documentation/media/uapi/fdl-appendix.rst. -.. -.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections - -.. _v4l2-meta-fmt-vsp1-hgo: - -******************************* -V4L2_META_FMT_VSP1_HGO ('VSPH') -******************************* - -Renesas R-Car VSP1 1-D Histogram Data - - -Description -=========== - -This format describes histogram data generated by the Renesas R-Car VSP1 1-D -Histogram (HGO) engine. - -The VSP1 HGO is a histogram computation engine that can operate on RGB, YCrCb -or HSV data. It operates on a possibly cropped and subsampled input image and -computes the minimum, maximum and sum of all pixels as well as per-channel -histograms. - -The HGO can compute histograms independently per channel, on the maximum of the -three channels (RGB data only) or on the Y channel only (YCbCr only). It can -additionally output the histogram with 64 or 256 bins, resulting in four -possible modes of operation. - -- In *64 bins normal mode*, the HGO operates on the three channels independently - to compute three 64-bins histograms. RGB, YCbCr and HSV image formats are - supported. -- In *64 bins maximum mode*, the HGO operates on the maximum of the (R, G, B) - channels to compute a single 64-bins histogram. Only the RGB image format is - supported. -- In *256 bins normal mode*, the HGO operates on the Y channel to compute a - single 256-bins histogram. Only the YCbCr image format is supported. -- In *256 bins maximum mode*, the HGO operates on the maximum of the (R, G, B) - channels to compute a single 256-bins histogram. Only the RGB image format is - supported. - -**Byte Order.** -All data is stored in memory in little endian format. Each cell in the tables -contains one byte. - -.. flat-table:: VSP1 HGO Data - 64 Bins, Normal Mode (792 bytes) - :header-rows: 2 - :stub-columns: 0 - - * - Offset - - :cspan:`4` Memory - * - - - [31:24] - - [23:16] - - [15:8] - - [7:0] - * - 0 - - - - R/Cr/H max [7:0] - - - - R/Cr/H min [7:0] - * - 4 - - - - G/Y/S max [7:0] - - - - G/Y/S min [7:0] - * - 8 - - - - B/Cb/V max [7:0] - - - - B/Cb/V min [7:0] - * - 12 - - :cspan:`4` R/Cr/H sum [31:0] - * - 16 - - :cspan:`4` G/Y/S sum [31:0] - * - 20 - - :cspan:`4` B/Cb/V sum [31:0] - * - 24 - - :cspan:`4` R/Cr/H bin 0 [31:0] - * - - - :cspan:`4` ... - * - 276 - - :cspan:`4` R/Cr/H bin 63 [31:0] - * - 280 - - :cspan:`4` G/Y/S bin 0 [31:0] - * - - - :cspan:`4` ... - * - 532 - - :cspan:`4` G/Y/S bin 63 [31:0] - * - 536 - - :cspan:`4` B/Cb/V bin 0 [31:0] - * - - - :cspan:`4` ... - * - 788 - - :cspan:`4` B/Cb/V bin 63 [31:0] - -.. flat-table:: VSP1 HGO Data - 64 Bins, Max Mode (264 bytes) - :header-rows: 2 - :stub-columns: 0 - - * - Offset - - :cspan:`4` Memory - * - - - [31:24] - - [23:16] - - [15:8] - - [7:0] - * - 0 - - - - max(R,G,B) max [7:0] - - - - max(R,G,B) min [7:0] - * - 4 - - :cspan:`4` max(R,G,B) sum [31:0] - * - 8 - - :cspan:`4` max(R,G,B) bin 0 [31:0] - * - - - :cspan:`4` ... - * - 260 - - :cspan:`4` max(R,G,B) bin 63 [31:0] - -.. flat-table:: VSP1 HGO Data - 256 Bins, Normal Mode (1032 bytes) - :header-rows: 2 - :stub-columns: 0 - - * - Offset - - :cspan:`4` Memory - * - - - [31:24] - - [23:16] - - [15:8] - - [7:0] - * - 0 - - - - Y max [7:0] - - - - Y min [7:0] - * - 4 - - :cspan:`4` Y sum [31:0] - * - 8 - - :cspan:`4` Y bin 0 [31:0] - * - - - :cspan:`4` ... - * - 1028 - - :cspan:`4` Y bin 255 [31:0] - -.. flat-table:: VSP1 HGO Data - 256 Bins, Max Mode (1032 bytes) - :header-rows: 2 - :stub-columns: 0 - - * - Offset - - :cspan:`4` Memory - * - - - [31:24] - - [23:16] - - [15:8] - - [7:0] - * - 0 - - - - max(R,G,B) max [7:0] - - - - max(R,G,B) min [7:0] - * - 4 - - :cspan:`4` max(R,G,B) sum [31:0] - * - 8 - - :cspan:`4` max(R,G,B) bin 0 [31:0] - * - - - :cspan:`4` ... - * - 1028 - - :cspan:`4` max(R,G,B) bin 255 [31:0] |