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experimental deblocking filter

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This commit is contained in:
minjaesong
2025-09-06 00:06:15 +09:00
parent 99e5183b42
commit 4dfea6df11
2 changed files with 193 additions and 8 deletions
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32
assets/disk0/tvdos/bin/playtev.js
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@@ -3,6 +3,7 @@
// Usage: playtev moviefile.tev [options]
// Options: -i (interactive), -debug-mv (show motion vector debug visualization)
// -deinterlace=algorithm (yadif or bwdif, default: yadif)
// -nodeblock (disble deblocking filter)
const WIDTH = 560
const HEIGHT = 448
@@ -40,9 +41,26 @@ let subtitleVisible = false
let subtitleText = ""
let subtitlePosition = 0 // 0=bottom center (default)
const interactive = exec_args[2] && exec_args[2].toLowerCase() == "-i"
const debugMotionVectors = exec_args[2] && exec_args[2].toLowerCase() == "-debug-mv"
const deinterlaceAlgorithm = "yadif"
// Parse command line options
let interactive = false
let debugMotionVectors = false
let deinterlaceAlgorithm = "yadif"
let enableDeblocking = true // Default: enabled (use -nodeblock to disable)
if (exec_args.length > 2) {
for (let i = 2; i < exec_args.length; i++) {
const arg = exec_args[i].toLowerCase()
if (arg === "-i") {
interactive = true
} else if (arg === "-debug-mv") {
debugMotionVectors = true
} else if (arg === "-nodeblock") {
enableDeblocking = false
} else if (arg.startsWith("-deinterlace=")) {
deinterlaceAlgorithm = arg.substring(13)
}
}
}
const fullFilePath = _G.shell.resolvePathInput(exec_args[1])
const FILE_LENGTH = files.open(fullFilePath.full).size
@@ -374,7 +392,7 @@ if (version !== TEV_VERSION_YCOCG && version !== TEV_VERSION_XYB) {
let colorSpace = (version === TEV_VERSION_XYB) ? "XYB" : "YCoCg-R"
if (interactive) {
con.move(1,1)
println(`Push and hold Backspace to exit | TEV Format ${version} (${colorSpace})`)
println(`Push and hold Backspace to exit | TEV Format ${version} (${colorSpace}) | Deblocking: ${enableDeblocking ? 'ON' : 'OFF'}`)
}
let width = seqread.readShort()
@@ -628,7 +646,7 @@ try {
// Hardware-accelerated TEV decoding to RGB buffers (YCoCg-R or XYB based on version)
try {
// duplicate every 1000th frame (pass a turn every 1000n+501st) if NTSC
if (!isInterlaced || frameCount % 1000 != 501 || frameDuped) {
if (!isNTSC || frameCount % 1000 != 501 || frameDuped) {
frameDuped = false
let decodeStart = sys.nanoTime()
@@ -637,14 +655,14 @@ try {
if (isInterlaced) {
// For interlaced: decode current frame into currentFieldAddr
// For display: use prevFieldAddr as current, currentFieldAddr as next
graphics.tevDecode(blockDataPtr, nextFieldAddr, currentFieldAddr, width, decodingHeight, [qualityY, qualityCo, qualityCg], trueFrameCount, debugMotionVectors, version)
graphics.tevDecode(blockDataPtr, nextFieldAddr, currentFieldAddr, width, decodingHeight, [qualityY, qualityCo, qualityCg], trueFrameCount, debugMotionVectors, version, enableDeblocking)
graphics.tevDeinterlace(trueFrameCount, width, decodingHeight, prevFieldAddr, currentFieldAddr, nextFieldAddr, CURRENT_RGB_ADDR, deinterlaceAlgorithm)
// Rotate field buffers for next frame: NEXT -> CURRENT -> PREV
rotateFieldBuffers()
} else {
// Progressive or first frame: normal decoding without temporal prediction
graphics.tevDecode(blockDataPtr, CURRENT_RGB_ADDR, PREV_RGB_ADDR, width, decodingHeight, [qualityY, qualityCo, qualityCg], trueFrameCount, debugMotionVectors, version)
graphics.tevDecode(blockDataPtr, CURRENT_RGB_ADDR, PREV_RGB_ADDR, width, decodingHeight, [qualityY, qualityCo, qualityCg], trueFrameCount, debugMotionVectors, version, enableDeblocking)
}
decodeTime = (sys.nanoTime() - decodeStart) / 1000000.0 // Convert to milliseconds