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tev slight optimisation

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minjaesong
2025-09-09 09:47:56 +09:00
parent cf1ee80aa1
commit 3495dfca5e
3 changed files with 22 additions and 30 deletions
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6
assets/disk0/tvdos/bin/playtev.js
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@@ -580,6 +580,8 @@ let frameDuped = false
// Main decoding loop - simplified for performance
try {
graphics.tevPrepareQuantTable(qualityY, qualityCo, qualityCg)
let t1 = sys.nanoTime()
while (!stopPlay && seqread.getReadCount() < FILE_LENGTH && trueFrameCount < totalFrames) {
@@ -655,14 +657,14 @@ 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, enableDeblocking)
graphics.tevDecode(blockDataPtr, nextFieldAddr, currentFieldAddr, width, decodingHeight, 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, enableDeblocking)
graphics.tevDecode(blockDataPtr, CURRENT_RGB_ADDR, PREV_RGB_ADDR, width, decodingHeight, trueFrameCount, debugMotionVectors, version, enableDeblocking)
}
decodeTime = (sys.nanoTime() - decodeStart) / 1000000.0 // Convert to milliseconds