[libcamera-devel] [PATCH 2/2] ipa: rpi: vc4: data: Update tuning files for HDR

Naushir Patuck naush at raspberrypi.com
Mon Aug 21 11:01:06 CEST 2023


Hi David,

Thank you for your patch.

On Mon, 31 Jul 2023 at 14:48, David Plowman via libcamera-devel
<libcamera-devel at lists.libcamera.org> wrote:
>
> All the Raspberry Pi official camera tuning files are updated for
> HDR. As stated previously, there is no mechanism in the hardware for
> combining images so all this does is enable multi-channel AGC to
> produce short and long exposure frames. It will be up to the
> application to deal with them.
>
> The changes are identical in every tuning file.
>
> 1. The existing AGC tuning is duplicated twice so that we have 3 AGC
> channels.
>
> 2. The first is left alone (the default AGC channel), the second is
> tweaked to under-expose significantly (ev -3) and the final one is
> tweaked to over-exposure slightly (ev +0.5)
>
> 3. Control parameters are provided to the "rpi.hdr" algorithm to
> associate these AGC channels correctly with the HDR modes.
>
> Signed-off-by: David Plowman <david.plowman at raspberrypi.com>
> ---
>  src/ipa/rpi/vc4/data/imx219.json           | 388 +++++++++++++++-----
>  src/ipa/rpi/vc4/data/imx219_noir.json      | 388 +++++++++++++++-----
>  src/ipa/rpi/vc4/data/imx477.json           | 386 +++++++++++++++-----
>  src/ipa/rpi/vc4/data/imx477_noir.json      | 388 +++++++++++++++-----
>  src/ipa/rpi/vc4/data/imx708.json           | 350 +++++++++++++-----
>  src/ipa/rpi/vc4/data/imx708_noir.json      | 350 +++++++++++++-----
>  src/ipa/rpi/vc4/data/imx708_wide.json      | 350 +++++++++++++-----
>  src/ipa/rpi/vc4/data/imx708_wide_noir.json | 350 +++++++++++++-----
>  src/ipa/rpi/vc4/data/ov5647.json           | 392 ++++++++++++++++-----
>  9 files changed, 2563 insertions(+), 779 deletions(-)
>
> diff --git a/src/ipa/rpi/vc4/data/imx219.json b/src/ipa/rpi/vc4/data/imx219.json
> index efe7210a..a4e457c0 100644
> --- a/src/ipa/rpi/vc4/data/imx219.json
> +++ b/src/ipa/rpi/vc4/data/imx219.json
> @@ -131,95 +131,282 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ],
> -                    "shadows": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.0,
> -                            "q_hi": 0.5,
> -                            "y_target":
> -                            [
> -                                0, 0.17,
> -                                1000, 0.17
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ]
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -481,6 +668,25 @@
>          },
>          {
>              "rpi.sharpen": { }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },

Perhaps "Off" could be implicit in the config read code? Or could it be possible
we use "Cadence" != [ 0 ] in the "Off" case for reasons?

> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
> -}
> \ No newline at end of file
> +}
> diff --git a/src/ipa/rpi/vc4/data/imx219_noir.json b/src/ipa/rpi/vc4/data/imx219_noir.json
> index cfedb943..cba1905c 100644
> --- a/src/ipa/rpi/vc4/data/imx219_noir.json
> +++ b/src/ipa/rpi/vc4/data/imx219_noir.json
> @@ -47,95 +47,282 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ],
> -                    "shadows": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.0,
> -                            "q_hi": 0.5,
> -                            "y_target":
> -                            [
> -                                0, 0.17,
> -                                1000, 0.17
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ]
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -397,6 +584,25 @@
>          },
>          {
>              "rpi.sharpen": { }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
> -}
> \ No newline at end of file
> +}
> diff --git a/src/ipa/rpi/vc4/data/imx477.json b/src/ipa/rpi/vc4/data/imx477.json
> index bbe6da0d..fbefb0a9 100644
> --- a/src/ipa/rpi/vc4/data/imx477.json
> +++ b/src/ipa/rpi/vc4/data/imx477.json
> @@ -136,95 +136,282 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.3,
> -                                1000, 0.3
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.3,
> -                                1000, 0.3
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ],
> -                    "shadows": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.0,
> -                            "q_hi": 0.5,
> -                            "y_target":
> -                            [
> -                                0, 0.17,
> -                                1000, 0.17
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ]
> -            }
> +               "channels":
> +               [
> +                    {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                    {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                    {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -513,7 +700,26 @@
>          },
>          {
>              "rpi.sharpen": { }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
>  }
>
> diff --git a/src/ipa/rpi/vc4/data/imx477_noir.json b/src/ipa/rpi/vc4/data/imx477_noir.json
> index 52d7f072..53b7b492 100644
> --- a/src/ipa/rpi/vc4/data/imx477_noir.json
> +++ b/src/ipa/rpi/vc4/data/imx477_noir.json
> @@ -47,95 +47,282 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.3,
> -                                1000, 0.3
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.3,
> -                                1000, 0.3
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ],
> -                    "shadows": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.0,
> -                            "q_hi": 0.5,
> -                            "y_target":
> -                            [
> -                                0, 0.17,
> -                                1000, 0.17
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ]
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.3,
> +                                       1000, 0.3
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ]
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -424,6 +611,25 @@
>          },
>          {
>              "rpi.sharpen": { }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
> -}
> \ No newline at end of file
> +}
> diff --git a/src/ipa/rpi/vc4/data/imx708.json b/src/ipa/rpi/vc4/data/imx708.json
> index 6b26d0a1..bfa78b72 100644
> --- a/src/ipa/rpi/vc4/data/imx708.json
> +++ b/src/ipa/rpi/vc4/data/imx708.json
> @@ -139,86 +139,255 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ],
> -                "startup_frames": 5,
> -                "convergence_frames": 6,
> -                "speed": 0.15
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -556,6 +725,25 @@
>                  "skip_frames": 5,
>                  "map": [ 0.0, 445, 15.0, 925 ]
>              }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
>  }
> diff --git a/src/ipa/rpi/vc4/data/imx708_noir.json b/src/ipa/rpi/vc4/data/imx708_noir.json
> index 8d498153..eb0c7a95 100644
> --- a/src/ipa/rpi/vc4/data/imx708_noir.json
> +++ b/src/ipa/rpi/vc4/data/imx708_noir.json
> @@ -139,86 +139,255 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ],
> -                "startup_frames": 5,
> -                "convergence_frames": 6,
> -                "speed": 0.15
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -556,6 +725,25 @@
>                  "skip_frames": 5,
>                  "map": [ 0.0, 445, 15.0, 925 ]
>              }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
>  }
> diff --git a/src/ipa/rpi/vc4/data/imx708_wide.json b/src/ipa/rpi/vc4/data/imx708_wide.json
> index 14bc918e..cefaaaeb 100644
> --- a/src/ipa/rpi/vc4/data/imx708_wide.json
> +++ b/src/ipa/rpi/vc4/data/imx708_wide.json
> @@ -129,86 +129,255 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ],
> -                "startup_frames": 5,
> -                "convergence_frames": 6,
> -                "speed": 0.15
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -459,6 +628,25 @@
>                  "skip_frames": 5,
>                  "map": [ 0.0, 420, 35.0, 920 ]
>              }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
>  }
> diff --git a/src/ipa/rpi/vc4/data/imx708_wide_noir.json b/src/ipa/rpi/vc4/data/imx708_wide_noir.json
> index 49442c0f..de222f52 100644
> --- a/src/ipa/rpi/vc4/data/imx708_wide_noir.json
> +++ b/src/ipa/rpi/vc4/data/imx708_wide_noir.json
> @@ -129,86 +129,255 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.2,
> -                                1000, 0.2
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ],
> -                "startup_frames": 5,
> -                "convergence_frames": 6,
> -                "speed": 0.15
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 1000, 30000, 60000, 90000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.2,
> +                                       1000, 0.2
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "startup_frames": 5,
> +                       "convergence_frames": 6,
> +                       "speed": 0.15
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -459,6 +628,25 @@
>                  "skip_frames": 5,
>                  "map": [ 0.0, 420, 35.0, 920 ]
>              }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
>  }
> diff --git a/src/ipa/rpi/vc4/data/ov5647.json b/src/ipa/rpi/vc4/data/ov5647.json
> index d770e44f..ac9f3f30 100644
> --- a/src/ipa/rpi/vc4/data/ov5647.json
> +++ b/src/ipa/rpi/vc4/data/ov5647.json
> @@ -131,96 +131,285 @@
>          {
>              "rpi.agc":
>              {
> -                "metering_modes":
> -                {
> -                    "centre-weighted":
> -                    {
> -                        "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> -                    },
> -                    "spot":
> -                    {
> -                        "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> -                    },
> -                    "matrix":
> -                    {
> -                        "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> -                    }
> -                },
> -                "exposure_modes":
> -                {
> -                    "normal":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "short":
> -                    {
> -                        "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> -                    },
> -                    "long":
> -                    {
> -                        "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> -                        "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> -                    }
> -                },
> -                "constraint_modes":
> -                {
> -                    "normal": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        }
> -                    ],
> -                    "highlight": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.5,
> -                                1000, 0.5
> -                            ]
> -                        },
> -                        {
> -                            "bound": "UPPER",
> -                            "q_lo": 0.98,
> -                            "q_hi": 1.0,
> -                            "y_target":
> -                            [
> -                                0, 0.8,
> -                                1000, 0.8
> -                            ]
> -                        }
> -                    ],
> -                    "shadows": [
> -                        {
> -                            "bound": "LOWER",
> -                            "q_lo": 0.0,
> -                            "q_hi": 0.5,
> -                            "y_target":
> -                            [
> -                                0, 0.17,
> -                                1000, 0.17
> -                            ]
> -                        }
> -                    ]
> -                },
> -                "y_target":
> -                [
> -                    0, 0.16,
> -                    1000, 0.165,
> -                    10000, 0.17
> -                ],
> -                "base_ev": 1.25
> -            }
> +               "channels":
> +               [
> +                   {
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "base_ev": 1.25
> +                   },
> +                   {
> +                       "base_ev": 0.125,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "base_ev": 1.25
> +                   },
> +                   {
> +                       "base_ev": 1.5,
> +                       "metering_modes":
> +                       {
> +                           "centre-weighted":
> +                           {
> +                               "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ]
> +                           },
> +                           "spot":
> +                           {
> +                               "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
> +                           },
> +                           "matrix":
> +                           {
> +                               "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ]
> +                           }
> +                       },
> +                       "exposure_modes":
> +                       {
> +                           "normal":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 66666 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "short":
> +                           {
> +                               "shutter": [ 100, 5000, 10000, 20000, 33333 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ]
> +                           },
> +                           "long":
> +                           {
> +                               "shutter": [ 100, 10000, 30000, 60000, 120000 ],
> +                               "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ]
> +                           }
> +                       },
> +                       "constraint_modes":
> +                       {
> +                           "normal": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               }
> +                           ],
> +                           "highlight": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.5,
> +                                       1000, 0.5
> +                                   ]
> +                               },
> +                               {
> +                                   "bound": "UPPER",
> +                                   "q_lo": 0.98,
> +                                   "q_hi": 1.0,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.8,
> +                                       1000, 0.8
> +                                   ]
> +                               }
> +                           ],
> +                           "shadows": [
> +                               {
> +                                   "bound": "LOWER",
> +                                   "q_lo": 0.0,
> +                                   "q_hi": 0.5,
> +                                   "y_target":
> +                                   [
> +                                       0, 0.17,
> +                                       1000, 0.17
> +                                   ]
> +                               }
> +                           ]
> +                       },
> +                       "y_target":
> +                       [
> +                           0, 0.16,
> +                           1000, 0.165,
> +                           10000, 0.17
> +                       ],
> +                       "base_ev": 1.25
> +                   }
> +               ]
> +           }
>          },
>          {
>              "rpi.alsc":
> @@ -482,6 +671,25 @@
>          },
>          {
>              "rpi.sharpen": { }
> -        }
> +        },
> +       {
> +           "rpi.hdr":
> +           {
> +               "Off":
> +               {
> +                   "cadence": [ 0 ]
> +               },
> +               "MultiExposure":
> +               {
> +                   "cadence": [ 1, 2 ],
> +                   "channel_map": { "short": 1, "long": 2 }
> +               },
> +               "SingleExposure":
> +               {
> +                   "cadence": [ 1 ],
> +                   "channel_map": { "short": 1 }
> +               }
> +           }
> +       }
>      ]
> -}
> \ No newline at end of file
> +}
> --
> 2.30.2
>


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