Morph4K DV1 Config Files

Some of the MiSTer cores do not supply complete DV1 meta data.

FX-Framework supports an .ini file system to supply missing / adjust existing DV1 metadata since firmware version 3.9.46.78 (map.pr and map.vidstd require firmware version 3.9.46.135).

Preparation

DV1 ini files are read from a top-level folder on the SD card named dv1.

All .ini files in this folder are processed on startup and whenever files are created/changed/deleted through the Web UI SD Card Manager.

A single file can hold multiple configurations. (Each file can be up to 32kB in size)

File Format

A DV1 config section starts with:

[dv1]

The following config entries are available in this section:

Detection

• detect.name DV1 name of the core to configure.

• detect.width Optional DV1 width to match (for cores with multiple width/heights needing separate configs)

• detect.height Optional DV1 height to match

H/V-Offsets

Applies when the DV1 source does not supply offset values (or the values are 0)

• map.de.top Optional First line with video data

• map.de.left Optional First pixel with video data

Adjust DV1 metadata

There is also a way to adjust the metadata provided. Changes are relative to the value provided in the DV1 metadata.

• adjust.top Optional

• adjust.left Optional

• adjust.width Optional

• adjust.height Optional

Other settings

• map.ar Optional Set the display aspect ratio for this source for Auto AR.

• overscan.color Optional Color of the overscan are (default is black (0x000000))

• llc.phase Optional Adjust input phase (0-31) (default is 0)

• map.pr Optional Set/override pixel repetition applied (Some cores do not report the proper pixel repetition or any pixel repetition at all) (default is 0 -> use DV1 PR)

• map.vidstd Optional Override auto detected video standard to use for output. Useful for cores, which use non-standard refresh rates (default is default -> auto detected from frame rate)

Examples

Saint Dragon - configure missing offset values

[dv1]
detect.name = stdragon
map.de.top = 41
map.de.left = 1040

Arkanoid - set the height to 224 (instead of 225 as per metadata)

[dv1]
detect.name = arkanoid
adjust.height = -1

How to find offset values for a core

Step 1 - Configure the scaler

Set the scaler interpolation to off (nearest neighbor) and choose an integer zoom.

Step 2 - Configure the overscan color for visual inspection

Upload a .ini file using the Web UI which configures the overscan color:

[dv1]
detect.name = stdragon
overscan.color = 0x123456

Step 3 - Border Detect

On the Morph navigate to the Border Detect screen Main Menu->RX Input Analyzer->Border Detect

• Live Reports the first/last active line and first/last active pixel within a frame

• Accu Accumulated Live data

• DE Actual DE values configured

Once the accumulated data matches the reported width and height, the horizontal/vertical start values are marked green. These are the values you need for the config.

Step 4 Verify

Upload the modified INI.

[dv1]
detect.name = stdragon
map.de.top = 41
map.de.left = 1040
overscan.color = 0x123456

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