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TAD: Terrarum Advanced Audio to use with video compression

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minjaesong
2025-10-23 18:56:57 +09:00
parent 6f669f4fd9
commit a9319fd812
10 changed files with 1887 additions and 22 deletions
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17
assets/disk0/tvdos/bin/playtav.js
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@@ -15,6 +15,7 @@ const UCF_VERSION = 1
const ADDRESSING_EXTERNAL = 0x01
const ADDRESSING_INTERNAL = 0x02
const SND_BASE_ADDR = audio.getBaseAddr()
const SND_MEM_ADDR = audio.getMemAddr()
const pcm = require("pcm")
const MP2_FRAME_SIZE = [144,216,252,288,360,432,504,576,720,864,1008,1152,1440,1728]
@@ -32,6 +33,7 @@ const TAV_PACKET_AUDIO_MP2 = 0x20
const TAV_PACKET_AUDIO_NATIVE = 0x21
const TAV_PACKET_AUDIO_PCM_16LE = 0x22
const TAV_PACKET_AUDIO_ADPCM = 0x23
const TAV_PACKET_AUDIO_TAD = 0x24
const TAV_PACKET_SUBTITLE = 0x30
const TAV_PACKET_AUDIO_BUNDLED = 0x40 // Entire MP2 audio file in single packet
const TAV_PACKET_EXTENDED_HDR = 0xEF
@@ -396,6 +398,7 @@ let audioBufferBytesLastFrame = 0
let frame_cnt = 0
let frametime = 1000000000.0 / header.fps
let mp2Initialised = false
let tadInitialised = false
let audioFired = false
@@ -1337,6 +1340,20 @@ try {
audio.mp2Decode()
audio.mp2UploadDecoded(0)
}
else if (packetType === TAV_PACKET_AUDIO_TAD) {
// Legacy MP2 Audio packet (for backwards compatibility)
let payloadLen = seqread.readInt()
if (!tadInitialised) {
tadInitialised = true
audio.tadSetQuality(header.qualityLevel)
}
seqread.readBytes(payloadLen, SND_MEM_ADDR - 262144)
audio.tadDecode()
audio.tadUploadDecoded(0)
}
else if (packetType === TAV_PACKET_AUDIO_NATIVE) {
// PCM length must not exceed 65536 bytes!