VITA4 1.0.0

The first public release of VITA4.

Play your PS Vita on the TV through a jailbroken PS4, over one USB cable:
picture, sound and DualShock 4 controls (including the touchpad).

Downloads

File	What it is
VITA4-1.0.0.pkg	the PS4 app (install with GoldHEN's Package Installer)
input_receiver.skprx	the Vita controller plugin, v2.0.3 (goes in ur0:tai/)
VITA4-1.0.0-source.zip	full source code
SHA256SUMS.txt	checksums

Setup and the full menu reference are in the README.

Highlights

• Picture, sound and controls over one USB cable: no Bluetooth pairing,
  no capture card.
• Touchpad that works in games: taps are held long enough for games to see
  them, and every tap arrives as a new touch (fixes menus that only
  highlighted, e.g. Killzone Mercenary's pause menu). Three modes: Steady /
  Slow games / Raw.
• Stick dead zone: worn DualShock 4 sticks no longer creep or make one
  direction turn faster than the other; a full push still reaches the full
  range.
• Smooth upscaling at full frame rate, plus TV scaler, Sharp and FSR modes
  and a sharpness setting.
• Picture resolution: Fast 480x272 for lower delay and a smoother feed, or
  Full 960x544 for the sharpest picture.
• Steadier sound: the sound backlog is capped so it stays close to the
  picture.
• Stats overlay: frame rates, late pictures, sound backlog, delay and live
  stick readings.
• L3 shortcuts: L3 + R3 menu, L3 + D-pad Left/Right upscale, L3 + D-pad Up
  full screen / windowed.

Recommended settings

• Sharpest picture: Picture resolution Full, Upscale Smooth, Low lag Off.
• Lowest delay: Picture resolution Fast, Low lag Off.
• TV in Game Mode.

Known issues

• At Full 960x544 the USB cable carries about 38 pictures a second.
  30 fps games (most Vita games) are unaffected; 60 fps games are capped.
• Fast 480x272 makes the Vita send 200+ pictures a second. It has worked
  well in testing, but one session had a choppy game and no sound; if that
  happens, power the Vita off and on and restart VitaUSBStream, or use Full.
  Upscaling doesn't apply to the Fast picture.
• Low lag is experimental. Keep it Off; with Fast it made camera turns
  stutter.
• Sharp and FSR are slow (about 10 fps, CPU only). Use Smooth.
• TV scaler is refused by some PS4s and is then skipped.
• Picture and sound arrive a little later than on the Vita itself (USB
  transfer plus the game's own delay), and sound runs slightly behind.
• Looking up/down can feel slower than turning in some games (the game's own
  vertical sensitivity).
• Tested on one PS4 and Vita, mostly with Killzone Mercenary. Please report
  other games and setups, ideally with a photo of the Stats overlay.

Install / update

• PS4: install VITA4-1.0.0.pkg with GoldHEN's Package Installer.
  If you tested a development build of VITA4 (numbered 1.xx or 2.00), delete
  it first (PS4 home screen, Options, Delete) - your VITA4 settings are kept.
• Vita: if input_receiver.skprx v2.0.3 is already installed, there's
  nothing to do. Otherwise copy it to ur0:tai/, add
  ur0:tai/input_receiver.skprx under *KERNEL in ur0:tai/config.txt
  (above the VitaUSBStream.skprx line), then reboot the Vita.
• On the Vita, turn VitaUSBStream streaming on after every reboot.