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wav direct upload with bugfixes

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minjaesong
2026-06-20 17:27:27 +09:00
parent 04aa651ff1
commit 646af9452c
11 changed files with 228 additions and 68 deletions
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54
assets/disk0/tvdos/bin/playpcm.js
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@@ -20,6 +20,9 @@ const byterate = 2 * samplingRate
function bytesToSec(i) { return i / byterate }
// Load the visualiser's font ROM now, while no audio file is streaming (single-file-open drive).
if (gui) gui.preloadAssets()
seqread.prepare(filePath)
const readPtr = sys.malloc(BLOCK_SIZE)
@@ -44,29 +47,29 @@ let errorlevel = 0
let readLength = 1
try {
while (!stopPlay && seqread.getReadCount() < FILE_SIZE && readLength > 0) {
if (interactive && gui.audioIsExitRequested()) { stopPlay = true; break }
const queueSize = audio.getPosition(PLAYHEAD)
if (queueSize <= 1) {
for (let repeat = QUEUE_MAX - queueSize; repeat > 0; repeat--) {
const remainingBytes = FILE_SIZE - seqread.getReadCount()
readLength = (remainingBytes < INFILE_BLOCK_SIZE) ? remainingBytes : INFILE_BLOCK_SIZE
if (readLength <= 0) break
seqread.readBytes(readLength, readPtr)
// Raw PCMu8 stereo — sampleCount = bytes / 2.
if (interactive) gui.audioFeedPcm(readPtr, readLength >> 1)
audio.putPcmDataByPtr(PLAYHEAD, readPtr, readLength, 0)
audio.setSampleUploadLength(PLAYHEAD, readLength)
audio.startSampleUpload(PLAYHEAD)
if (repeat > 1) sys.sleep(10)
}
audio.play(PLAYHEAD)
if (interactive && gui.audioIsExitRequested()) {
// Stop immediately and drop everything still queued, so audio doesn't keep playing
// the buffered chunks after the user quits.
audio.stop(PLAYHEAD); audio.purgeQueue(PLAYHEAD)
stopPlay = true; break
}
// Top the queue up to QUEUE_MAX chunks with a DIRECT enqueue (no putPcmData/startUpload
// handshake, no sys.sleep). The handshake dropped chunks under load → skips/fast-forward.
while (audio.getPosition(PLAYHEAD) < QUEUE_MAX && seqread.getReadCount() < FILE_SIZE) {
const remainingBytes = FILE_SIZE - seqread.getReadCount()
readLength = (remainingBytes < INFILE_BLOCK_SIZE) ? remainingBytes : INFILE_BLOCK_SIZE
if (readLength <= 0) break
seqread.readBytes(readLength, readPtr)
// Raw PCMu8 stereo — sampleCount = bytes / 2.
if (interactive) gui.audioFeedPcm(readPtr, readLength >> 1)
audio.queuePcmDataByPtr(PLAYHEAD, readPtr, readLength)
}
audio.play(PLAYHEAD)
if (interactive) {
const cur = seqread.getReadCount()
gui.audioSetProgress(cur / FILE_SIZE, bytesToSec(cur), bytesToSec(FILE_SIZE))
@@ -78,6 +81,15 @@ try {
printerrln(e)
errorlevel = 1
} finally {
// Never leave the playhead in 'play' mode for the next program. On a clean finish, let the
// queued tail play out first; on Backspace/error, stop immediately.
if (!stopPlay && errorlevel === 0) {
let guard = 0
while (audio.getPosition(PLAYHEAD) > 0 && guard++ < 1500) sys.sleep(20) // drain, capped ~30s
}
audio.stop(PLAYHEAD)
audio.purgeQueue(PLAYHEAD)
if (readPtr !== undefined) sys.free(readPtr)
if (interactive) gui.audioClose()
}