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bitrate indicator

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minjaesong
2025-05-06 01:26:19 +09:00
parent 54ca840f75
commit 480a3261a7
1 changed files with 22 additions and 0 deletions
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22
assets/disk0/tvdos/bin/playmov.js
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@@ -10,6 +10,7 @@ const pcm = require("pcm")
const MP2_FRAME_SIZE = [144,216,252,288,360,432,504,576,720,864,1008,1152,1440,1728] const MP2_FRAME_SIZE = [144,216,252,288,360,432,504,576,720,864,1008,1152,1440,1728]
const fullFilePath = _G.shell.resolvePathInput(exec_args[1]) const fullFilePath = _G.shell.resolvePathInput(exec_args[1])
const FILE_LENGTH = files.open(fullFilePath.full).size const FILE_LENGTH = files.open(fullFilePath.full).size
let videoRateBin = []
con.clear();con.curs_set(0) con.clear();con.curs_set(0)
graphics.clearPixels(255) graphics.clearPixels(255)
@@ -43,6 +44,20 @@ let width = seqread.readShort()
let height = seqread.readShort() let height = seqread.readShort()
let fps = seqread.readShort(); if (fps == 0) fps = 9999 let fps = seqread.readShort(); if (fps == 0) fps = 9999
function updateDataRateBin(rate) {
videoRateBin.push(rate)
if (videoRateBin.length > fps) {
videoRateBin.shift()
}
}
function getVideoRate(rate) {
let baseRate = videoRateBin.reduce((a, c) => a + c, 0)
let mult = fps / videoRateBin.length
return baseRate * mult
}
//fps = 9999 //fps = 9999
const FRAME_TIME = 1.0 / fps const FRAME_TIME = 1.0 / fps
@@ -161,6 +176,7 @@ while (!stopPlay && seqread.getReadCount() < FILE_LENGTH) {
if (packetType == 4 || packetType == 5 || packetType == 260 || packetType == 261) { if (packetType == 4 || packetType == 5 || packetType == 260 || packetType == 261) {
let decodefun = (packetType > 255) ? graphics.decodeIpf2 : graphics.decodeIpf1 let decodefun = (packetType > 255) ? graphics.decodeIpf2 : graphics.decodeIpf1
let payloadLen = seqread.readInt() let payloadLen = seqread.readInt()
updateDataRateBin(payloadLen)
if (framesRead >= FRAME_COUNT) { if (framesRead >= FRAME_COUNT) {
break renderLoop break renderLoop
@@ -219,6 +235,7 @@ while (!stopPlay && seqread.getReadCount() < FILE_LENGTH) {
doFrameskip = false // disable frameskip for delta-coding doFrameskip = false // disable frameskip for delta-coding
let payloadLen = seqread.readInt() let payloadLen = seqread.readInt()
updateDataRateBin(payloadLen)
if (framesRead >= FRAME_COUNT) { if (framesRead >= FRAME_COUNT) {
break renderLoop break renderLoop
@@ -332,6 +349,11 @@ while (!stopPlay && seqread.getReadCount() < FILE_LENGTH) {
if (notifHideTimer > (NOTIF_SHOWUPTIME + FRAME_TIME)) { if (notifHideTimer > (NOTIF_SHOWUPTIME + FRAME_TIME)) {
con.clear() con.clear()
} }
con.move(32, 1)
graphics.setTextFore(161)
print(`VRate: ${(getVideoRate() / 1024 * 8)|0} kbps `)
con.move(1, 1)
} }
t1 = t2 t1 = t2