VitaRPS5: Difference between revisions

VitaRPS5
VitaRPS5
General
Author	AAGaming00, ywnico, mauricio-gg
Type	Utilities
Version	2.0.0
License	AGPL-3.0
Last Updated	2025/12/28
Links
	Download
	Website
	Source
	Support Author

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Revision as of 04:31, 28 December 2025

VitaRPS5 is a fork of ywnico's Vitaki Fork, which itself is based on AAGaming's original Chiaki port Vitaki. This project provides PlayStation 5 Remote Play functionality on the PS Vita.

This is an enhanced version with modern UI, optimized performance, and quality-of-life improvements.

Features

VitaRPS5-Style UI Redesign
- Modern card-based console selection interface.
- Professional PlayStation-themed color scheme.
- Redesigned PIN entry screen with individual digit display.
- Improved visual feedback and animations.
Enhanced Console Wake Flow
- "Waking up console..." screen with animated progress.
- 30-second timeout with visual countdown.
- Automatic streaming start when console wakes up.
- No need to press X twice.
Fixed Controller Input Issues
- Resolved race condition that prevented controller input during streaming.
- Properly separated UI and input thread buffer access.
- Controllers now work reliably during remote play.
Improved Console Management
- Re-pairing now properly deletes registration data from storage.
- Better console name and IP display formatting.
- Circle button for cancel (PlayStation convention).

Installation

Download VitakiFork.vpk.

Transfer to your PS Vita (via USB or FTP).

Install using VitaShell (press X on the VPK file).

Launch from LiveArea.

For usage please see Vitaki Fork.

Screenshots

Changelog

v2.0.0

Thread Priority & CPU Affinity Tuning
- Input thread priority increased to 96 (from default) and pinned to CPU 1 to avoid contention with media processing (vita/src/host.c:1194-1195)
- Audio thread priority set to 64 and pinned to CPU 0 for consistent audio mixing without dropouts (vita/src/audio.c:144-145)
- Video decoder thread priority 64 and pinned to CPU 0 for optimal hardware acceleration (vita/src/video.c:691-692)
- Result: Input processing now takes precedence over all other tasks, reducing controller-to-network latency
Input Polling Optimization
- Reduced input polling interval from 5ms to 2ms - effectively 500Hz sampling rate (vita/src/host.c:1203)
- Adaptive sleep alignment prevents CPU waste while maintaining tight sampling
- Controller state changes are detected and transmitted 2.5× faster than before
Network Receive Queue Optimization
- Trimmed Takion reorder queue from 128 to 64 packets on Vita builds to reduce buffering latency (lib/src/takion.c:47)
- Added overflow logging with rate limiting to monitor packet loss without spam
- Implemented automatic drop detection and recovery for degraded network conditions
- Result: Lower end-to-end network latency, especially on clean connections
Packet Loss Fallback System
- Automatic bitrate reduction when frame drops detected (Ultra Low → 800 Kbps emergency mode)
- "Reconnecting..." overlay with seamless resume instead of crashing to menu
- Keeps controller input flowing during recovery to avoid input gaps (vita/src/host.c:1248-1252)
- Up to 2 automatic retry attempts before returning to menu
Video Pipeline Optimizations
- VBlank wait disabled during streaming to eliminate vsync latency (vita/src/video.c:872)
- Frame presentation uncapped for minimal display lag
- 30 FPS lock by default reduces bandwidth and decode workload (configurable to 60 FPS in settings)
Measured Impact
- According to docs/LATENCY_QUICK_WINS.md, these optimizations deliver:
  - 20-40ms latency reduction (realistic estimate)
  - Input lag reduced from ~20-30ms to ~10ms (controller polling improvements)
  - Network handling optimized for both local and remote connections
VitaRPS5-Style Interface
- Clean card-based console selection with PS5/PS4 visual indicators
- Professional PlayStation-themed color scheme (blues, whites, sophisticated grays)
- Wave-animated navigation sidebar with collapsible menu
- Individual digit PIN entry screen for console pairing
Enhanced Console Management
- Automatic console discovery on local network
- Manual remote host configuration with static IP support
- Console wake flow with animated progress and 30-second timeout
- One-tap streaming start when console wakes (no double-press required)
Settings & Configuration
- Tabbed settings page (Streaming, Controller) with L/R navigation
- 3 fully customizable controller preset slots (Custom 1, Custom 2, Custom 3)
- Immersive fullscreen controller mapping screen with procedural Vita diagrams
- Latency mode selection: Ultra Low, Low, Balanced, High, Max (targeting 1.2-3.8 Mbps)
- Fill Screen toggle and Force 30 FPS option
Controller Input Fixes
- Resolved race condition preventing controller input during streaming
- Properly separated UI and input thread buffer access
- D-pad navigation no longer double-processes when nav bar focused
- Focus manager prevents input leaking between UI zones
Connection Reliability
- Fixed instant disconnection bug from upstream
- Console re-pairing now properly deletes old registration data
- Remote Play crash/in-use detection with user-friendly hints
- Improved error handling for network timeouts
UI Polish
- Fixed content overlap with navigation pill
- Profile page layout corrected (Y=60 → Y=80)
- Triangle icon in menu pill matches PlayStation conventions
- 48px navigation icons with optional text labels
Latency Breakdown (estimated)
- Total latency: ~100-140ms remote (down from 150-200ms), ~50-70ms local (down from 80-100ms)
- Input lag: <10ms (down from 20-30ms)
- Video decode-to-display: ~30ms
- Network RTT: Variable (depends on connection)
Platform Constraints
- PS Vita: 960×544 display, quad-core ARM Cortex-A9, 512MB RAM
- Hardware H.264 decoder (SceVideodec) for video
- vita2d for all rendering
- Dual CPU cores: CPU 0 for media, CPU 1 for input sampling
Chiaki Protocol Enhancements
- Fast restart mechanism for packet-loss recovery
- Cached controller state preservation across reconnects
- Session restart API for bitrate negotiation without full disconnect
- FEC error concealment from Chiaki base library

v1.0.2

What's Changed- Latency Optimization - Phase 1 Improvements (#8) (48a0b1b)
- UI Fixes: Main Screen Improvements and VitaRPS5 Branding (#4) (439e514)

v1.0.1

First Release.

External links

@@ Line 4: / Line 4: @@
 |description=Mod of ywnico's Vitaki fork with enhanced UI and QOL improvements.
 |author=AAGaming00, ywnico, mauricio-gg
-|lastupdated=2025/10/02
+|lastupdated=2025/12/28
 |type=Utilities
-|version=1.0.2
+|version=2.0.0
 |license=AGPL-3.0
 |download=https://dlhb.gamebrew.org/vitahomebrews/VitaRPS5.7z
@@ Line 62: / Line 62: @@
 ==Changelog==
+'''v2.0.0'''
+*'''Thread Priority &amp; CPU Affinity Tuning'''
+** '''Input thread priority increased to 96''' (from default) and '''pinned to CPU 1''' to avoid contention with media processing (<code>vita/src/host.c:1194-1195</code>)
+** '''Audio thread priority set to 64''' and '''pinned to CPU 0''' for consistent audio mixing without dropouts (<code>vita/src/audio.c:144-145</code>)
+** '''Video decoder thread priority 64''' and '''pinned to CPU 0''' for optimal hardware acceleration (<code>vita/src/video.c:691-692</code>)
+** Result: Input processing now takes precedence over all other tasks, reducing controller-to-network latency
+*'''Input Polling Optimization'''
+** '''Reduced input polling interval from 5ms to 2ms''' - effectively 500Hz sampling rate (<code>vita/src/host.c:1203</code>)
+** Adaptive sleep alignment prevents CPU waste while maintaining tight sampling
+** Controller state changes are detected and transmitted 2.5× faster than before
+*'''Network Receive Queue Optimization'''
+** '''Trimmed Takion reorder queue from 128 to 64 packets''' on Vita builds to reduce buffering latency (<code>lib/src/takion.c:47</code>)
+** Added overflow logging with rate limiting to monitor packet loss without spam
+** Implemented automatic drop detection and recovery for degraded network conditions
+** Result: Lower end-to-end network latency, especially on clean connections
+*'''Packet Loss Fallback System'''
+** Automatic bitrate reduction when frame drops detected (Ultra Low → 800 Kbps emergency mode)
+** &quot;Reconnecting...&quot; overlay with seamless resume instead of crashing to menu
+** Keeps controller input flowing during recovery to avoid input gaps (<code>vita/src/host.c:1248-1252</code>)
+** Up to 2 automatic retry attempts before returning to menu
+*Video Pipeline Optimizations
+** '''VBlank wait disabled''' during streaming to eliminate vsync latency (<code>vita/src/video.c:872</code>)
+** '''Frame presentation uncapped''' for minimal display lag
+** '''30 FPS lock by default''' reduces bandwidth and decode workload (configurable to 60 FPS in settings)
+*Measured Impact
+**According to <code>docs/LATENCY_QUICK_WINS.md</code>, these optimizations deliver:
+*** '''20-40ms latency reduction''' (realistic estimate)
+*** '''Input lag reduced from ~20-30ms to ~10ms''' (controller polling improvements)
+*** '''Network handling optimized''' for both local and remote connections
+*'''VitaRPS5-Style Interface'''
+** Clean card-based console selection with PS5/PS4 visual indicators
+** Professional PlayStation-themed color scheme (blues, whites, sophisticated grays)
+** Wave-animated navigation sidebar with collapsible menu
+** Individual digit PIN entry screen for console pairing
+*'''Enhanced Console Management'''
+** Automatic console discovery on local network
+** Manual remote host configuration with static IP support
+** Console wake flow with animated progress and 30-second timeout
+** One-tap streaming start when console wakes (no double-press required)
+*'''Settings &amp; Configuration'''
+** Tabbed settings page (Streaming, Controller) with L/R navigation
+** 3 fully customizable controller preset slots (Custom 1, Custom 2, Custom 3)
+** Immersive fullscreen controller mapping screen with procedural Vita diagrams
+** Latency mode selection: Ultra Low, Low, Balanced, High, Max (targeting 1.2-3.8 Mbps)
+** Fill Screen toggle and Force 30 FPS option
+*'''Controller Input Fixes'''
+** Resolved race condition preventing controller input during streaming
+** Properly separated UI and input thread buffer access
+** D-pad navigation no longer double-processes when nav bar focused
+** Focus manager prevents input leaking between UI zones
+*'''Connection Reliability'''
+** Fixed instant disconnection bug from upstream
+** Console re-pairing now properly deletes old registration data
+** Remote Play crash/in-use detection with user-friendly hints
+** Improved error handling for network timeouts
+*'''UI Polish'''
+** Fixed content overlap with navigation pill
+** Profile page layout corrected (Y=60 → Y=80)
+** Triangle icon in menu pill matches PlayStation conventions
+** 48px navigation icons with optional text labels
+*'''Latency Breakdown''' (estimated)
+** Total latency: ~100-140ms remote (down from 150-200ms), ~50-70ms local (down from 80-100ms)
+** Input lag: &lt;10ms (down from 20-30ms)
+** Video decode-to-display: ~30ms
+** Network RTT: Variable (depends on connection)
+*'''Platform Constraints'''
+** PS Vita: 960×544 display, quad-core ARM Cortex-A9, 512MB RAM
+** Hardware H.264 decoder (SceVideodec) for video
+** vita2d for all rendering
+** Dual CPU cores: CPU 0 for media, CPU 1 for input sampling
+*'''Chiaki Protocol Enhancements'''
+** Fast restart mechanism for packet-loss recovery
+** Cached controller state preservation across reconnects
+** Session restart API for bitrate negotiation without full disconnect
+** FEC error concealment from Chiaki base library
 '''v1.0.2'''
 * What's Changed- Latency Optimization - Phase 1 Improvements ([https://github.com/mauricio-gg/vitaki-vitarps5/pull/8 #8]) ([https://github.com/mauricio-gg/vitaki-vitarps5/commit/48a0b1b037e3fbdcddf01e7f8a74c8502b19bfaa <code>48a0b1b</code>])