Game Boy Interface/Standard Edition

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Game Boy Interface
Information
Author(s) Extrems
Type Utility
Version Rolling release
Licence All rights reserved
Links
Download main package
Download extra package
Website
Discussion
Source
This software must not be sold, neither alone nor as part of a bundle.
If you paid for this software or received it as part of a bundle following payment, you have been scammed and should demand your money back immediately.
Firmware update notice for GCVideo products.
It is strongly recommended to update to GCVideo-DVI v3.0 or later before using this software. GCVideo Lite products are not recommended under any circumstances.

The author's original vision, Game Boy Interface Standard Edition (GBI) features an advanced video renderer exercising the GameCube hardware to its fullest. A port of mGBA for GameCube and Wii, dubbed Enhanced mGBA, is based upon it.

Controls

On-screen display

Nintendo GameCube Nintendo GameCube Controller Logitech Speed Force Nintendo 64 Controller [1] Action
A/B Buttons or Z and Start/Pause Buttons A/B Buttons or Z and Start/Pause Buttons A/B Buttons or Z and Start Buttons Hide on-screen display
X Button or C Stick Left X Button C Button Left Toggle on-screen display
Y Button [2] Y Button Revert offset/zoom
Z Button Z Button Z Button Take screenshot
Start/Pause
(Hold for 1 second) 		Start/Pause
(Hold for 1 second) 		Start
(Hold for 1 second) 		Exit
+Control Pad +Control Pad +Control Pad Offset
L/R Buttons L/R Buttons L/R Buttons Zoom
Reset Button X, Y and Start/Pause Buttons
(Hold for 1.5 seconds) 		L, R and Start Buttons Recalibrate controller
Reset Button Save movie

In-game

Nintendo GameCube Nintendo GameCube Controller Logitech Speed Force Nintendo 64 Controller [1] Action
A/B Buttons A/B Buttons or Accelerator/Brake Pedals A/B Buttons A/B Buttons
X Button or C Stick Left X Button C Button Left Toggle on-screen display
Y Button [2] Y Button Turbo
Z Button Z Button Z Button Select
Start/Pause Start/Pause Start Start
+Control Pad or Control Stick +Control Pad or Steering Wheel +Control Pad or Control Stick +Control Pad
L/R Buttons L/R Buttons L/R Buttons L/R Buttons
(Only for Game Boy Advance)
Reset Button B, X and Start/Pause Buttons B, X and Start/Pause Buttons Z, R, A, B and Start Buttons Power Switch
Reset Button X, Y and Start/Pause Buttons
(Hold for 1.5 seconds) 		L, R and Start Buttons Recalibrate controller
Z and Start/Pause Buttons Z and Start/Pause Buttons Z and Start Buttons Multi-play boot
(Only in Game Boy Advance BIOS)
DK Bongos Controller Active Life Mat Controller Action
Bottom Right/Left Orange Up/Right A/B Buttons
Hand Clap - Button Select
Start/Pause + Button Start
Top Right Blue or Orange Square +Control Pad Right
Top Left Blue Left +Control Pad Left
Blue Up +Control Pad Up
Blue or Orange Down +Control Pad Down
  1. ↑ 1.0 1.1 Nintendo 64 Controller support requires a passive connector adapter.
  2. ↑ 2.0 2.1 Select on a HORI Game Boy Player Controller acts as the Y Button.

Options

--aspect=<w:h>
Specify screen aspect ratio. The default is the Progressive Scan Mode system setting (4:3 or 16:9).
--offset=<x:y>
Set offset. The default is the Screen Position system setting (-32 to +32).
--zoom=<x:y>
Set zoom. The default is the Game Boy Player Start-up Disc's Screen Size setting (2.0 or 2.375).
--rotate=<0-359>
Set rotation (default: 0).
--poll=<0-11>
Set controller polling rate. Use if your third-party controller or controller adapter is malfunctioning.
0: VSync (most compatible)
1: 1000Hz (default)
2: 500Hz
3: 350Hz
4: 300Hz
5: 250Hz
6: 200Hz
7: 150Hz
8: 150Hz
9: 125Hz
10: 125Hz
11: 100Hz
--turbo=<on:off>
Set autofire interval (default: 3).
--movie=<path>, --no-movie
Play input log (default: no).
--movie-record, --no-movie-record
Record input log (default: no).
--overlay=<path>, --no-overlay
Load texture palette (default: frame.tpl.gz).
--overlay-id=<ID>
Set texture palette index. The default is the Game Boy Player Start-up Disc's Frame setting (0 to 19).
--overlay-scale=<x:y>
Set texture scale (default: auto).
--filter=<[none|blend|deflicker|accumulate|scale2x[ex|plus]|eagle2x|scan2x|normal2x][,prescale|no-prescale]>
Set image doubling or screen filter. The default is the Game Boy Player Start-up Disc's Screen Filter setting (none, blend, deflicker).
none
Also known as the Sharp screen filter.
blend[=<red[:green[:blue]]>]
Blend frames n and n-1 (default: 0.55).
Also known as the Soft screen filter.
deflicker[=<red[:green[:blue]]>]
Blend frames n and n-1 where n and n-2 are equal (default: 0.55).
Also known as the Normal screen filter.
accumulate[=<red[:green[:blue]]>]
Blend frames with accumulation buffer (default: 0.55).
As used by the Nintendo 3DS Ambassador games.
scale2x
Apply EPX/Scale2×/AdvMAME2× algorithm.
eagle2x
Apply Eagle algorithm.
prescale, no-prescale
Enable prescaling filter (default: no).
Note: Any chosen filter will also apply to screenshots, but not to video streaming.
--dither=<none|threshold|bayer8x8|bayer4x4|bayer2x2|cluster8x8|cluster4x4>
Set dithering algorithm (default: threshold).
Applied during prescaling and temporal interpolation.
--scaler=<nearest|bilinear|area|box>
Set image scaling filter (default: area).
--matrix=<identity|gba|gbi|nds|palm|psp|vba>
Set color matrix (default: gbi).
This translates the RGB color primaries to the standard RGB color space.
identity: Identity matrix
gba: Game Boy Advance (by Pokefan531)
gbi: Game Boy Interface
nds: Nintendo DS (by Pokefan531)
palm: Palm Treo 700p (by Pokefan531)
psp: PlayStation Portable (by Pokefan531)
vba: VisualBoyAdvance-M (by Pokefan531)
--input-gamma=<red[:green[:blue]]>
Set gamma (default: 2.2).
--output-gamma=<1.0|1.7|2.2>
Specify screen gamma (default: 2.2).
--contrast=<red[:green[:blue]]>
Set gain (default: 1.0).
--brightness=<red[:green[:blue]]>
Set lift (default: 0.0).
--volume=<left[:right]>
Set audio gain (default: 0.75).
Note: GCVideo-DVI v2.4b and earlier reduces volume down to a quarter.
--sound=<[mono|stereo][,digital|analog]>
Set sound mode. The default is the Sound Mode system setting (mono or stereo).
digital
Use PWM decoder.
analog[=<a0:a1:a2:b1:b2>]
Use 2MHz biquad filter (default). Defaults to a second-order low-pass filter with a cut-off of 10kHz and a quality factor of √2 if not specified.
This is used to simulate the RLC circuit on the Game Boy Advance's Headphone Jack, providing a treble boost.
--format=<ntsc|pal|pal-m|ntsc-50|pal-60|custom|custom-m|hd60|hd50|hd48|hdcustom>
Set video format. The default is the Video Mode and 60Hz Mode system setting (ntsc, pal or pal-60, pal-m).
Note: GCVideo-DVI is only designed to support NTSC, PAL and PAL-60.
--scan-mode=<[interlace|quasi-interlace|non-interlace|non-progressive|progressive][,clock2x|no-clock2x][,size2x|no-size2x]>
Set scan mode. The default is the Progressive Scan Mode system setting (interlace or progressive).
interlace: 15 or 18-22kHz interlaced, deflickering
quasi-interlace: 15 or 18-22kHz segmented frame
non-interlace: 15 or 18-22kHz progressive
non-progressive: 31 or 27-33kHz interlaced, field rendering
progressive: 31 or 27-33kHz progressive
clock2x, no-clock2x
Enable 27MHz pixel clock (default: auto). Enabling doubles the refresh rate for interlace scan modes. Disabling halves the refresh rate for progressive scan modes.
This depend on a compatible video encoder or transmitter not mangling its input.
size2x, no-size2x
Enable 2× video oversampling (default: auto). Enabling halves the refresh rate.
If the video format's horizontal resolution is less or equal to 682, the internal resolution is doubled instead.
This depend on a compatible video encoder or transmitter not mangling its input.
--osd, --no-osd
Show on-screen display (default: yes).
--ipv4-address=<aaa.bbb.ccc.ddd>
Set static IPv4 address.
--ipv4-gateway=<aaa.bbb.ccc.ddd>
Set static IPv4 gateway.
--ipv4-netmask=<aaa.bbb.ccc.ddd>
Set static IPv4 netmask.
--network, --no-network
Enable Broadband Adapter features (default: yes).
--stream[=<aaa.bbb.ccc.ddd>], --no-stream
Stream video to IP address on UDP port 1234 (default: no). Defaults to 255.255.255.255 if not specified.
--enhance, --no-enhance
Enable Game Boy Player enhancements (default: yes).
Title Feature(s)
Drill Dozer Rumble
Game Boy Advance Video Series Not compatible
Mario & Luigi: Superstar Saga Rumble, reduced contrast
Pokémon Pinball: Ruby & Sapphire Rumble
Shikakui Atama o Maru Kusuru Advance: Kanji Keisanhen Rumble, restored contrast
Shikakui Atama o Maru Kusuru Advance: Kokugo Sansuu Shakai Rikahen Rumble, restored contrast
Super Mario Advance 4: Super Mario Bros. 3 Rumble, restored gamma
Note: Remove any accessory from the External Extension Connector, or the Rumble Feature will not work.
Note: If you're using an EverDrive-GBA, make sure to turn off Quick Boot in the options, or the enhancements may not work.
<path>
Load Game Boy Advance multi-bootable ROM.
Note: Remove any accessory from the External Extension Connector. Hold Start + Select in the Game Boy Player while the Game Boy logo is visible.

Any file path can be relative or absolute. If relative, it is relative to /GBI. They can also explicitly specify the SD card to read from by prefixing an absolute path with carda: or cardb:

Comparisons

Video quality (480i/p)

These results will differ from the speedrunning edition and high-fidelity edition.
These results are applicable to Nintendo GameCube software.

Using DSSIM 2.9.7 and FFmpeg 4.2 for RGB SSIM & PSNR, with this reference image.

The analog-to-digital conversion parameters were calibrated for each source and device pair.
This isn't representative of relative signal strength. Sorting by DSSIM provide a fairly accurate ranking.

Blackmagic Intensity Shuttle

Using ADV7180 and ADV7604.

This 10-bit YCBCR 4:2:2 capture device is most representative of what you might see on a digital television.
As chroma is shifted right on YPBPR in/out, this was corrected in post-processing. Video and S-Video in/out suffer from internal interference.

  • Nintendo Stereo AV Cable (NTSC-J)
    Nintendo Stereo AV Cable (NTSC-J)
  • Nintendo Stereo AV Cable (PAL-M)
    Nintendo Stereo AV Cable (PAL-M)
  • Generic S-Video Cable (NTSC-J) [1]
    Generic S-Video Cable (NTSC-J) [1]
  • Generic S-Video Cable (PAL-M) [1]
    Generic S-Video Cable (PAL-M) [1]
  • HD Retrovision SNES Component Cable
    HD Retrovision SNES Component Cable
  • EON GCHD Mk-II + Datel Wii HD Component Cable
    EON GCHD Mk-II + Datel Wii HD Component Cable
  • EON GCHD Mk-II + HD Retrovision Wii Component Cable
    EON GCHD Mk-II + HD Retrovision Wii Component Cable
  • EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable
    EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable
  • EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable
    EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable
  • Nintendo GameCube Component Video Cable
    Nintendo GameCube Component Video Cable
  • GCVideo-DVI v2.4a and earlier [2][3]
    GCVideo-DVI v2.4a and earlier [2][3]
  • GCVideo-DVI v2.4b and later [2]
    GCVideo-DVI v2.4b and later [2]
  • EON GCHD Mk-II v2.4c.2 + HDMI Cable [2]
    EON GCHD Mk-II v2.4c.2 + HDMI Cable [2]
  • Insurrection Industries CARBY v2.4d-2 [2]
    Insurrection Industries CARBY v2.4d-2 [2]
  • GCVideo-DVI v3.0 and later
    GCVideo-DVI v3.0 and later
  1. ↑ 1.0 1.1 Generic S-Video Cable exhibits a checkerboard pattern when audio isn't connected.
  2. ↑ 2.0 2.1 2.2 2.3 GCVideo-DVI v2.4d-2 and earlier prevents use of the full active area.
  3. ↑ GCVideo-DVI v2.4a and earlier has CB shifted left in the Green channel of RGB outputs.
Measurements in dB (Relaxed)
Source Lab DSSIM RGB SSIM RGB PSNR
Nintendo Stereo AV Cable (NTSC-J) -15.360224 9.256436 27.179112
Nintendo Stereo AV Cable (PAL-M) -15.253782 9.391237 27.190813
Generic S-Video Cable (NTSC-J) -17.459323 9.492715 28.371121
Generic S-Video Cable (PAL-M) -16.706236 9.293635 28.016600
HD Retrovision SNES Component Cable -20.739698 12.239705 31.080853
EON GCHD Mk-II + Datel Wii HD Component Cable -22.099186 13.287308 32.301984
EON GCHD Mk-II + HD Retrovision Wii Component Cable -22.652733 13.301181 32.196883
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -22.873347 13.264204 32.449360
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -23.731700 13.339028 32.535513
Nintendo GameCube Component Video Cable -22.463919 13.705390 31.801082
GCVideo-DVI v2.4a and earlier -19.432488 15.108742 28.342101
GCVideo-DVI v2.4b and later -19.840653 15.699765 28.384937
EON GCHD Mk-II v2.4c.2 + HDMI Cable -17.886388 14.822760 28.129669
Insurrection Industries CARBY v2.4d-2 -20.566163 15.879563 29.273666
GCVideo-DVI v3.0 and later -27.806591 18.272666 34.386203
Measurements in dB (Strict)
Source Lab DSSIM RGB SSIM RGB PSNR
Nintendo Stereo AV Cable (NTSC-J) -15.360224 9.256436 27.179112
Nintendo Stereo AV Cable (PAL-M) -15.253782 9.391237 27.190813
Generic S-Video Cable (NTSC-J) -17.459323 9.492715 28.371121
Generic S-Video Cable (PAL-M) -16.706236 9.293635 28.016600
HD Retrovision SNES Component Cable -20.739698 12.239705 31.080853
EON GCHD Mk-II + Datel Wii HD Component Cable -22.099186 13.287308 32.301984
EON GCHD Mk-II + HD Retrovision Wii Component Cable -22.652733 13.301181 32.196883
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -22.873347 13.264204 32.449360
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -23.731700 13.339028 32.535513
Nintendo GameCube Component Video Cable -22.463919 13.705390 31.801082
GCVideo-DVI v2.4a and earlier -9.549952 11.353702 20.189821
GCVideo-DVI v2.4b and later -9.629693 11.617080 20.199762
EON GCHD Mk-II v2.4c.2 + HDMI Cable -14.752944 13.248305 24.807061
Insurrection Industries CARBY v2.4d-2 -20.566163 15.879563 29.273666
GCVideo-DVI v3.0 and later -27.806591 18.272666 34.386203

Datapath VisionRGB

Using AD9887A.

This range of 8-bit RGB 4:4:4 capture cards serve as our reference.

  1. ↑ 1.0 1.1 1.2 1.3 GCVideo-DVI v2.4d-2 and earlier prevents use of the full active area.
  2. ↑ GCVideo-DVI v2.4a and earlier has CB shifted left in the Green channel of RGB outputs.
Measurements in dB (Relaxed)
Source Lab DSSIM RGB SSIM RGB PSNR
HD Retrovision SNES Component Cable -21.515897 13.510924 30.738094
EON GCHD Mk-II + Datel Wii HD Component Cable -25.602771 13.236977 33.465374
EON GCHD Mk-II + HD Retrovision Wii Component Cable -25.303900 10.484254 33.354349
EON GCHD Mk-II + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -26.884465 15.782966 34.134819
EON GCHD Mk-II + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -26.944974 15.794038 34.127733
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -24.194328 12.625988 30.532523
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -24.726234 10.469803 30.526897
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -25.507064 15.251067 30.902236
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -25.577522 15.276833 30.980456
Nintendo GameCube Component Video Cable -24.884560 14.937407 30.652260
Nintendo GameCube Component Video Cable + RetroRGB Comp2DVI v2.1 -25.105355 14.987152 30.847801
GCVideo-DVI v2.4a and earlier -19.745546 16.842978 28.363866
GCVideo-DVI v2.4b and later -20.232435 17.749485 28.407433
EON GCHD Mk-II v2.4c.2 + HDMI Cable -18.142442 16.037910 28.020205
Insurrection Industries CARBY v2.4d-2 -21.019163 17.973344 29.308984
GCVideo-DVI v3.0 and later -27.860543 19.185781 34.340843
Measurements in dB (Strict)
Source Lab DSSIM RGB SSIM RGB PSNR
HD Retrovision SNES Component Cable -21.515897 13.510924 30.738094
EON GCHD Mk-II + Datel Wii HD Component Cable -25.602771 13.236977 33.465374
EON GCHD Mk-II + HD Retrovision Wii Component Cable -25.303900 10.484254 33.354349
EON GCHD Mk-II + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -26.884465 15.782966 34.134819
EON GCHD Mk-II + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -26.944974 15.794038 34.127733
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -24.194328 12.625988 30.532523
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -24.726234 10.469803 30.526897
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -25.507064 15.251067 30.902236
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -25.577522 15.276833 30.980456
Nintendo GameCube Component Video Cable -24.884560 14.937407 30.652260
Nintendo GameCube Component Video Cable + RetroRGB Comp2DVI v2.1 -25.105355 14.987152 30.847801
GCVideo-DVI v2.4a and earlier -9.619669 11.740614 20.152853
GCVideo-DVI v2.4b and later -9.724187 12.005878 20.172236
EON GCHD Mk-II v2.4c.2 + HDMI Cable -14.845335 13.690009 24.334919
Insurrection Industries CARBY v2.4d-2 -21.019163 17.973344 29.308984
GCVideo-DVI v3.0 and later -27.860543 19.185781 34.340843

Video quality (1080i)

These results will differ from the high-fidelity edition.
These results are applicable to Nintendo GameCube software.

Using DSSIM 2.9.7 and FFmpeg 4.2 for RGB SSIM & PSNR, with this reference image.

The analog-to-digital conversion parameters were calibrated for each source and device pair.
This isn't representative of relative signal strength. Sorting by DSSIM provide a fairly accurate ranking.

Blackmagic Intensity Shuttle

Using ADV7604.

This 10-bit YCBCR 4:2:2 capture device is most representative of what you might see on a digital television.
As chroma is shifted right on YPBPR in/out, this was corrected in post-processing.

  1. ↑ 1.0 1.1 1.2 1.3 EON GCHD Mk-II's analog output lacks a reconstruction filter.
  2. ↑ 2.0 2.1 GCVideo-DVI v2.4c and earlier has CB shifted right and CR shifted left.
Measurements in dB
Source Lab DSSIM RGB SSIM RGB PSNR
EON GCHD Mk-II + Datel Wii HD Component Cable -15.617843 10.221003 28.309715
EON GCHD Mk-II + HD Retrovision Wii Component Cable -15.686934 9.509686 28.350319
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -19.750612 10.950729 31.618949
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -19.823434 9.752755 31.986043
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -20.296390 11.988850 31.527673
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -20.475047 12.069872 31.842823
Nintendo GameCube Component Video Cable -20.170760 12.471915 31.572464
Nintendo GameCube Component Video Cable + RetroRGB Comp2DVI v2.1 -20.248112 12.441875 31.544060

Datapath VisionRGB

Using AD9887A.

This range of 8-bit RGB 4:4:4 capture cards serve as our reference.

  • EON GCHD Mk-II + Datel Wii HD Component Cable [1][2]
    EON GCHD Mk-II + Datel Wii HD Component Cable [1][2]
  • EON GCHD Mk-II + HD Retrovision Wii Component Cable [1][2]
    EON GCHD Mk-II + HD Retrovision Wii Component Cable [1][2]
  • EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + [RetroRGB Comp2DVI v2.1] [1]
    EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + [RetroRGB Comp2DVI v2.1] [1]
  • EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + [RetroRGB Comp2DVI v2.1] [1]
    EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + [RetroRGB Comp2DVI v2.1] [1]
  • Nintendo GameCube Component Video Cable + [RetroRGB Comp2DVI v2.1]
    Nintendo GameCube Component Video Cable + [RetroRGB Comp2DVI v2.1]
  • Insurrection Industries CARBY + Manhattan HDMI to VGA Converter [2][3][4]
    Insurrection Industries CARBY + Manhattan HDMI to VGA Converter [2][3][4]
  • Insurrection Industries CARBY v2.4c + Manhattan HDMI to VGA Converter [2][3]
    Insurrection Industries CARBY v2.4c + Manhattan HDMI to VGA Converter [2][3]
  • EON GCHD Mk-II v2.4c.2 + Manhattan HDMI to VGA Converter [3]
    EON GCHD Mk-II v2.4c.2 + Manhattan HDMI to VGA Converter [3]
  • Insurrection Industries CARBY v2.4d-2 + Manhattan HDMI to VGA Converter [3]
    Insurrection Industries CARBY v2.4d-2 + Manhattan HDMI to VGA Converter [3]
  1. ↑ 1.0 1.1 1.2 1.3 EON GCHD Mk-II's analog output lacks a reconstruction filter.
  2. ↑ 2.0 2.1 2.2 2.3 GCVideo-DVI v2.4c and earlier has CB shifted right and CR shifted left.
  3. ↑ 3.0 3.1 3.2 3.3 GCVideo-DVI v2.4d-2 and earlier prevents use of the full active area.
  4. ↑ GCVideo-DVI v2.4a and earlier has CB shifted left in the Green channel of RGB outputs.
Measurements in dB
Source Lab DSSIM RGB SSIM RGB PSNR
EON GCHD Mk-II + Datel Wii HD Component Cable -15.366501 10.101452 27.931187
EON GCHD Mk-II + HD Retrovision Wii Component Cable -15.497283 9.580450 27.913698
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable -19.326176 11.485697 31.009392
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable -19.913281 9.692908 31.506822
EON GCHD Mk-II v2.4c.2 + Datel Wii HD Component Cable + RetroRGB Comp2DVI v2.1 -19.980733 12.951048 31.675253
EON GCHD Mk-II v2.4c.2 + HD Retrovision Wii Component Cable + RetroRGB Comp2DVI v2.1 -20.331615 13.077961 32.402539
Nintendo GameCube Component Video Cable -19.963804 13.591907 31.739733
Nintendo GameCube Component Video Cable + RetroRGB Comp2DVI v2.1 -20.014281 13.538404 31.660578
Insurrection Industries CARBY + Manhattan HDMI to VGA Converter -16.133547 13.017652 28.395561
Insurrection Industries CARBY v2.4c + Manhattan HDMI to VGA Converter -15.675882 12.770857 28.324521
EON GCHD Mk-II v2.4c.2 + Manhattan HDMI to VGA Converter -20.184739 14.551587 33.042360
Insurrection Industries CARBY v2.4d-2 + Manhattan HDMI to VGA Converter -20.325891 13.710338 31.759930

Sound emulation

Mega Man Zero 2

Pokémon Sapphire

Image doubling

Pokémon Sapphire

  • None
    None
  • Scale2×Ex
    Scale2×Ex
  • Scale2×Plus
    Scale2×Plus
  • Scale2×
    Scale2×
  • Eagle2×
    Eagle2×
  • Scan2×
    Scan2×
  • Normal2×
    Normal2×

Color matrix

Golden Sun

  • Identity matrix
    Identity matrix
  • Game Boy Advance
    Game Boy Advance
  • Game Boy Interface
    Game Boy Interface
  • Nintendo DS
    Nintendo DS
  • Palm Treo 700p
    Palm Treo 700p
  • PlayStation Portable
    PlayStation Portable
  • VisualBoyAdvance-M
    VisualBoyAdvance-M

Mario Kart: Super Circuit

  • Identity matrix
    Identity matrix
  • Game Boy Advance
    Game Boy Advance
  • Game Boy Interface
    Game Boy Interface
  • Nintendo DS
    Nintendo DS
  • Palm Treo 700p
    Palm Treo 700p
  • PlayStation Portable
    PlayStation Portable
  • VisualBoyAdvance-M
    VisualBoyAdvance-M

Pokémon Sapphire

  • Identity matrix
    Identity matrix
  • Game Boy Advance
    Game Boy Advance
  • Game Boy Interface
    Game Boy Interface
  • Nintendo DS
    Nintendo DS
  • Palm Treo 700p
    Palm Treo 700p
  • PlayStation Portable
    PlayStation Portable
  • VisualBoyAdvance-M
    VisualBoyAdvance-M

The Legend of Zelda: The Minish Cap

  • Identity matrix
    Identity matrix
  • Game Boy Advance
    Game Boy Advance
  • Game Boy Interface
    Game Boy Interface
  • Nintendo DS
    Nintendo DS
  • Palm Treo 700p
    Palm Treo 700p
  • PlayStation Portable
    PlayStation Portable
  • VisualBoyAdvance-M
    VisualBoyAdvance-M

Wario Land 4

  • Identity matrix
    Identity matrix
  • Game Boy Advance
    Game Boy Advance
  • Game Boy Interface
    Game Boy Interface
  • Nintendo DS
    Nintendo DS
  • Palm Treo 700p
    Palm Treo 700p
  • PlayStation Portable
    PlayStation Portable
  • VisualBoyAdvance-M
    VisualBoyAdvance-M

Examples

Color emulation

Game Boy Advance

Using a contrast ratio of 250:1. 

--matrix=gba
--input-gamma=4.
--contrast=.74851331406341291833644689906823
--brightness=.25148668593658708166355310093177

Nintendo DS

Using a contrast ratio of 600:1. 

--matrix=nds
--input-gamma=2.2
--contrast=.94539857500845076575010909270066
--brightness=.05460142499154923424989090729934

Palm Treo 700p

Using a contrast ratio of 75:1. 

--matrix=palm
--input-gamma=2.2
--contrast=.85949252616415732890698972119636
--brightness=.14050747383584267109301027880364

PlayStation Portable

Using a contrast ratio of 750:1. 

--matrix=psp
--input-gamma=2.2
--contrast=.95066513192721403818280764386444
--brightness=.04933486807278596181719235613556

Color restoration

Mario & Luigi: Superstar Saga

This game reduces contrast when played with Game Boy Player enhancements. 

--contrast=1.1

Super Mario Bros. 3: Super Mario Advance 4

This game reduces gamma when played without Game Boy Player enhancements. 

--input-gamma=2.8

The Legend of Zelda: Oracle of Ages/Seasons

This game reduces gamma when played on a Game Boy Advance. Due to Game Boy Color limitations, only shadows can be restored perfectly. 

--input-gamma=4.

Mimicking

Game Boy Player Start-up Disc

Included as gbi.cli.example. Transcribed below for reference. 

--aspect=4:3
--overlay=frame-srgb.tpl.gz
--dither=none
--matrix=identity
--input-gamma=1.
--output-gamma=1.
--contrast=.78125
--sound=analog=.000148021979839541018009185791015625:.00029604395967908203601837158203125:.000148021979839541018009185791015625:-1.965293407440185546875:.965885460376739501953125
--no-osd

Wii U Virtual Console

--aspect=16:9
--zoom=3
--no-overlay
--filter=none
--dither=none
--matrix=identity
--input-gamma=1.
--output-gamma=1.
--contrast=.75
--sound=digital
--no-osd
--no-enhance

Video optimization

Datapath VisionAV & VisionRGB

GCVideo-DVI v3.0 and later

These settings provide a 2× scaled image in a 4:3 960×360p60 video output.

In the GCVideo menu under "Other settings", set "Enhanced DVI mode" to On.
In the GCVideo menu under "Advanced settings", set "Chroma Interpolation" to On, "Fix resolution" to Off, and "Digital color format" to YC444. 

--aspect=4:3
--offset=0
--zoom=3
--filter=prescale
--dither=bayer2x2
--scaler=nearest
--format=hd60
--scan-mode=non-interlace,clock2x,size2x
  • Color Adjustments
    • Brightness: 32
    • Contrast: 128
    • Colour Domain: YUV (601) Limited

Datapath VisionRGB

Nintendo GameCube Component Video Cable

These settings provide a 2× scaled image in a 4:3 360p60 video output. 

--aspect=4:3
--offset=0
--zoom=3
--filter=prescale
--dither=bayer2x2
--scaler=nearest
--format=hd60
--scan-mode=non-interlace,clock2x,size2x
  • Resolution and Refresh
    • Width: 960
    • Height: 360
    • Vertical Refresh: 60.00
  • Video Adjustments
    • Horizontal Position: 205
    • Horizontal Size: 1200
    • Phase: 31
    • Vertical Position: 13
    • Black Level: 8
  • Cropping
    • Top: 20
    • Left: 0
    • Width: 960
    • Height: 320
  • Color Adjustments
    • Brightness: 32
    • Contrast: 128
    • Colour Domain: YUV (601)
    • Colour Balance
      • All Colors
        • Brightness: 32
        • Contrast: 128
      • Red
        • Brightness: 159
        • Contrast: 159
      • Green
        • Brightness: 178
        • Contrast: 160
      • Blue
        • Brightness: 152
        • Contrast: 144

Open Source Scan Converter

These settings provide a 2× scaled image in a 4:3 360p60 video output. 

--aspect=4:3
--offset=0
--zoom=3
--format=hd60
--scan-mode=non-interlace

High-definition televisions

Nintendo GameCube Component Video Cable

These settings provide a 2.75× scaled image, line doubled in a 16:9 1080i60 video output. 

--aspect=11:6
--offset=0
--zoom=2.75
--format=hd60
--scan-mode=non-progressive

Change the Aspect Ratio on the television to Just Scan.

GCVideo-DVI v2.4d and earlier

These settings provide a 3× scaled image, line doubled in a 16:9 720x960i59.9972 video output. 

--aspect=16:9
--offset=+4:-2
--zoom=3
--format=ntsc
--scan-mode=non-progressive

Change the Aspect Ratio on the television to 16:9.

To improve the picture further, in the GCVideo menu under "Other settings", try setting "Enhanced DVI mode" to Off. You will lose embedded digital audio.

Labeling the input on the television as a PC may also work.

These settings provide a 2.875× scaled image in a 16:9 720×480p59.94 video output. 

--aspect=16:9
--offset=+4
--zoom=2.875
--format=ntsc
--scan-mode=progressive

Change the Aspect Ratio on the television to 16:9.

GCVideo-DVI v3.0 and later

These settings provide a 4× scaled image in a 16:9 960×720i60.08 video output.

In the GCVideo menu under "Other settings", set "Enhanced DVI mode" to On.
In the GCVideo menu under "Advanced settings", set "Digital color format" to YC422.

Included as gbi-gcdv-v3.cli, gbi-gcdv-v3.dol+cli and gbi-gcdv-v3.gci. Transcribed below for reference. 

--aspect=16:9
--offset=0
--zoom=3
--format=hd60
--scan-mode=interlace,clock2x,size2x

Change the Aspect Ratio on the television to 16:9. If the output isn't compatible, use the default settings.

These settings provide a 4× scaled image in a 4:3 960×720i60.08 video output.

In the GCVideo menu under "Other settings", set "Enhanced DVI mode" to On.
In the GCVideo menu under "Advanced settings", set "Digital color format" to YC422. 

--aspect=4:3
--offset=0
--zoom=3
--format=hd60
--scan-mode=interlace,clock2x,size2x

Change the Aspect Ratio on the television to 4:3. If the correct aspect ratio cannot be realized, or the output isn't compatible, consider other options.

These settings provide a 3× scaled image in a 4:3 720×540p59.9467 video output. Due to the tight video timings, digital audio cannot be embedded.

In the GCVideo menu under "Other settings", set "Enhanced DVI mode" to Off.
In the GCVideo menu under "Advanced settings", set "Chroma Interpolation" to On. 

--aspect=4:3
--offset=0
--zoom=3
--filter=prescale
--dither=bayer2x2
--scaler=nearest
--format=hd60
--scan-mode=progressive

Change the Aspect Ratio on the television to 4:3. If the correct aspect ratio cannot be realized, or the output isn't compatible, consider other options.

Video capture devices (Game Boy Advance)

These settings provide a 3× scaled image in a 3:2 480i59.94 or 480p59.94 video output. 

--aspect=3:2
--offset=0
--zoom=3
--filter=prescale
--dither=bayer2x2
--scaler=nearest
--format=ntsc

Video capture devices (Game Boy Color)

These settings provide a 4× scaled image in a 5:4 576i50 or 576p50 video output. 

--aspect=5:4
--offset=0
--zoom=4
--filter=prescale
--dither=bayer2x2
--scaler=nearest
--format=pal

FAQs

Progressive scan (720x480p)
Blanking regeneration (1440x480i)
Red + Green: Regenerated blanking interval
Green + Blue: Actual blanking interval

How do I change Game Paks?

  1. Hold the Reset Button.
  2. Slide the Game Pak Ejector.
  3. Insert a Game Pak into the Game Pak Slot.
  4. Release the Reset Button.

Can I play Game Boy Advance Video?

Yes. You can do so by disabling Game Boy Player enhancements (--no-enhance, or "Rumble: No" in Swiss), or holding a direction in the Game Boy Player while the Game Boy Player logo is visible.

Is this an emulator? Can I play ROMs?

No, but there's Enhanced mGBA if you're looking for one.

Is it possible to dump Game Boy Game Paks?

No, the pin assignment for the ARM7 CPU is different and prevents any such possibility. Using the SM83 CPU is impractical.

If you're interested in backing up Game Boy Camera photos, you can do so by taking a screenshot.

Why am I seeing a double split image?

Either progressive scan mode is enabled or, if using GCVideo-DVI, line doubling is by default.

If line doubling is at fault, the picture may also be scrolling with a slant.

Why is my picture cut or off-center?

This is GCVideo-DVI's blanking regeneration misbehaving with unsupported video modes. In most cases, no user action is necessary with GCVideo-DVI v3.0 and later.

If you have a GCDual or EON GCHD Mk-II, under "Other settings", set "Analog output" (Wii RGB Cable) or "Mode Select" (Wii Component Cable) to dYUV.

For standard video modes, you can disable video oversampling (--scan-mode=no-clock2x,no-size2x, or "Video Oversampling: No" in Swiss).

Why is my picture square or narrow?

By default, Game Boy Interface assume a widescreen aspect ratio when using progressive scan.

Ensure that the television's settings match the assumed aspect ratio written in the top right corner of the on-screen display.

Why is there motion blur? Can I turn it off?

It removes stuttering caused by mismatches between the Game Boy Advance and the display refresh rate. It cannot be turned off.

It can be reduced by using a 120Hz video mode, but it's most effective on a sample-and-hold display.

This can possibly be confused with the deflickering filters. These can be disabled (--filter=none, or "Filter: Sharp" in Swiss).

Why are the colors washed out?

The screens used in the Game Boy family produced a smaller gamut of colors than found in the standard RGB color space on contemporary monitors.

Developers compensated for this to varying degree, resulting in odd-looking oversaturated colors when shown as-is.

By default, Game Boy Interface adapt these colors for the standard RGB color space, but only halfway as a compromise.

What happens when I exit Game Boy Interface?

The Game Boy Player keeps running and you're returned to autoexec.dol, or the Nintendo GameCube Main Menu.

If using Swiss v0.5r979 or later, its reload stub is called.

Changelog

January, 2021

  • Added GBA ROM checksummer.
  • Added all devices search for GBI directory.
  • Updated GBA-as-GC controller.
  • Improved GBA multiboot support.

December, 2020

  • Added return to loader support.
  • Updated color matrices by Pokefan531.
  • Improved system stability.
  • Improved SD card compatibility.
  • Changed default video format to avoid PAL-M with digital AV.

May–June, 2020

  • Added disc spin-down.
  • Added GC Loader read-only support.
  • Fixed wiiload over 100 Mbps full duplex.

April, 2020

  • Fixed Game Boy Player settings validation.

January–March, 2020

  • Improved SD card compatibility.
  • Fixed wiiload arguments bug.
  • Disabled deflickering for HD video modes.

October, 2019

  • Added N64 Controller support.
  • Added GBA anti-sleep mode.
  • Added subfolder search for GBI directory.
  • Conformed screenshots to DCF standard.

August–September, 2019

  • Added Game Boy Player settings validation.
  • Fixed default SD card with bad program name.

July, 2019

  • Added SD2SP2 support.
  • Fixed hang with no SD card inserted.
  • Fixed hang upon SD card reinsertion.

June, 2019

  • Improved video rendering.
  • Renamed oversample scaler to area.
  • Changed default scaler to area.
  • Fixed 540p and 1080i.

May, 2019

  • Added blend, deflicker and accumulate filters.
  • Added prescaling filter setting.
  • Added reset combo.

April, 2019

  • Unified screen space for HD video modes.
  • Fixed some video rendering bugs.
  • Fixed a power issue.
  • Enabled USB Gecko standard output.

March, 2019

  • Updated color matrices by Pokefan531.
  • Replaced 720p with 540p.
  • Fixed 960i and 1152i.
  • Fixed NTSC 50 composite video.

October–December, 2018

  • Added HD Custom video format.
  • Fixed 360p RGBcvS sync issue.

August, 2018

  • Updated color matrices by Pokefan531.

July, 2018

  • Updated GBA-as-GC controller.

June, 2018

  • Added analog sound emulation.
  • Added Custom-M video format.
  • Added Custom interlaced video modes.
  • Changed default sound mode to analog.
  • Changed brightness/contrast controls to match BT.1886.
  • Fixed some audio bugs.
  • Enabled progressive scan in more cases to prevent display issues.

May, 2018

  • Added 360p, 720i, 720p and 1080i video modes.
  • Changed scan mode semantics.
  • Changed default aspect ratio for progressive scan to 16:9.
  • Fixed Game Boy Player advertisement.
  • Fixed rumble protocol handshake.

April, 2018

  • Added movie recording/playback.
  • Updated GBA-as-GC controller.

March, 2018

  • Improved multiboot implementation.
  • Improved Game Boy sound quality.
  • Improved audio rendering.
  • Reduced audio latency.
  • Changed default color matrix to GBI's original.
  • Fixed SD card compatibility.
  • Fixed multiboot to rumble protocol transition.

February, 2018

  • Added color matrix from Gambatte.
  • Added mono sound mode.
  • Fixed wiiload autoboot with tiny GBA multiboot ROMs.
  • Disabled machine checks.

January, 2018

  • Updated color matrices by Pokefan531.
  • Improved Game Boy Player driver.

September, 2017

  • Added overlay scale setting.
  • Added Logitech Speed Force support.
  • Added Active Life Mat support.
  • Improved Game Boy Player driver.
  • Changed wiiload server to accept oversized DOLs.
  • Fixed one random kernel crash.

August, 2017

  • Added DK Bongos support.
  • Updated color matrices by Pokefan531.
  • Improved Game Boy Player driver.

July, 2017

  • Added CLI append support.
  • Updated color matrices by Pokefan531.
  • Updated GBA-as-GC controller.

April, 2017

  • Added component video DAC oversampling.
  • Added experimental 960i and 1152i video modes.

March, 2017

  • Added temporal/spatial dithering.
  • Added color matrices by Pokefan531.
  • Added TPL overlay support to wiiload server.
  • Changed default color matrix to Pokefan531's.
  • Changed default gamma to 2.2.
  • Optimized NormalNx filter.

February, 2017

  • Added volume control.
  • Added per-channel settings where possible.
  • Changed volume to 75% to mitigate clipping.
  • Fixed framebuffer clearing for 576i.

November, 2016

  • Updated GBA-as-GC controller.
  • Optimized Scale2xEx filter.

October, 2016

  • Added Scale2xEx and Scale2xPlus filters.
  • Added oversample and box scalers.
  • Added basic video streaming.
  • Added Remote RetroPad support.
  • Optimized video rendering.

September, 2016

  • Added polling rate setting.

May, 2016

  • Updated GBA-as-GC controller.
  • Improved Game Boy Player driver.
  • Fixed WaveBird Controllers.

April, 2016

  • Added GBA multiboot support to wiiload server.
  • Added Xboo Communicator.
  • Added BIOS/ROM dumper.
  • Replaced GBA-as-controller with GBA-as-GC controller.

March, 2016

  • Added GBA-as-controller support.
  • Recognized a half press of the analog triggers.

December, 2015

  • Expanded video options. Now includes 25, 30, 100 and 120 Hz modes.
  • Added gamma-encoded borders for special use.

November, 2015

  • Added (GZipped) TPL overlay support.
  • Added all 20 borders from the Game Boy Player Start-up Disc.

October, 2015

  • Added Scale2x, Eagle2x, Scan2x and Normal2x filters.

August, 2015

  • Added executable compression.
  • Added return to autoexec.dol.
  • Added memory card distribution files.
  • Added auto-cropping for Game Boy screenshots.
  • Optimized video rendering.
  • Reduced coil whine.

July, 2015

  • Added rumble.
  • Added hold to quit.
  • Added screenshot saving.
  • Added SNTP broadcast listener.
  • Changed default video mode to interlaced.
  • Fixed Game Boy Player detection.

May, 2015

  • Changed all 60 Hz modes to have 486 active lines.

March, 2015

  • Added digital PWM sound.
  • Added turbo button.
  • Fixed 288p.
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