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video and audio stuffs; playmov now uses hardware queue

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This commit is contained in:
minjaesong
2023-01-23 03:20:35 +09:00
parent e53aa7e98d
commit c1031545ec
7 changed files with 23 additions and 53 deletions
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18
assets/disk0/tvdos/bin/encodemov.js
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@@ -1,12 +1,12 @@
// some manual configurations
//
let IPFMODE = 2 // 1 or 2
let TOTAL_FRAMES = 1318
let TOTAL_FRAMES = 3813
let FPS = 30
let WIDTH = 560
let HEIGHT = 448
let PATHFUN = (i) => `/namu2/${(''+i).padStart(5,'0')}.png` // how can be the image file found, if a frame number (starts from 1) were given
let AUDIOTRACK = 'namu.mp2'
let PATHFUN = (i) => `/ddol2/${(''+i).padStart(5,'0')}.bmp` // how can be the image file found, if a frame number (starts from 1) were given
let AUDIOTRACK = 'ddol.mp2'
let AUDIOFORMAT = 'MP2fr' // PCMu8 or MP2fr
// to export video to its frames:
// ffmpeg -i file.mp4 file/%05d.bmp
@@ -16,6 +16,7 @@ let AUDIOFORMAT = 'MP2fr' // PCMu8 or MP2fr
// end of manual configuration
let MP2_RATE_INDEX;
let MP2_PACKETSIZE;
const DECODE_TIME_FACTOR = 1.000
let outfilename = exec_args[1]
if (!outfilename) {
@@ -52,7 +53,7 @@ const videoPacketType = [4, (IPFMODE - 1)]
const syncPacket = [255, 255]
const AUDIO_SAMPLE_SIZE = 2 * (((32000 / FPS) + 1)|0) // times 2 because stereo
const AUDIO_BLOCK_SIZE = ("MP2fr" == AUDIOFORMAT) ? 0x240 : 0
const AUDIO_QUEUE_SIZE = ("MP2fr" == AUDIOFORMAT) ? Math.ceil(AUDIO_SAMPLE_SIZE / 2304) + 1 : 0
const AUDIO_QUEUE_SIZE = ("MP2fr" == AUDIOFORMAT) ? Math.ceil(AUDIO_SAMPLE_SIZE / (2304 * DECODE_TIME_FACTOR)) + 1 : 0
// write header to the file
let headerBytes = [
0x1F, 0x54, 0x53, 0x56, 0x4D, 0x4D, 0x4F, 0x56, // magic
@@ -83,8 +84,8 @@ function getRepeatCount(fnum) {
return (fnum == 1) ? 2 : 1
}
else if ("MP2fr" == AUDIOFORMAT) {
let r = Math.ceil((AUDIO_SAMPLE_SIZE - audioSamplesWrote) / AUDIO_SAMPLE_SIZE) + ((fnum == 1) ? 1 : 0)
return (fnum > TOTAL_FRAMES) ? Math.ceil(audioRemaining / MP2_PACKETSIZE) : r
let r = Math.ceil((AUDIO_SAMPLE_SIZE - audioSamplesWrote) / AUDIO_SAMPLE_SIZE) * ((fnum == 1) ? 2 : 1)
return (fnum == 2) ? 1 : (fnum > TOTAL_FRAMES) ? Math.ceil(audioRemaining / MP2_PACKETSIZE) : r
}
}
@@ -117,7 +118,8 @@ for (let f = 1; ; f++) {
if (audioRemaining > 0) {
// first frame gets two audio packets
for (let repeat = 0; repeat < getRepeatCount(f); repeat++) {
let rrrr = getRepeatCount(f) // must be called only once
for (let q = 0; q < rrrr; q++) {
print(`Frame ${f}/${TOTAL_FRAMES} (${AUDIOFORMAT}) ->`)
serial.print(`Frame ${f}/${TOTAL_FRAMES} (${AUDIOFORMAT}) ->`)
@@ -140,7 +142,7 @@ for (let f = 1; ; f++) {
actualBytesToRead = Math.min(MP2_PACKETSIZE, audioRemaining)
audioFile.pread(infile, actualBytesToRead, audioBytesRead)
audioSamplesWrote += 2304
if (f > 1) audioSamplesWrote += 2304 / DECODE_TIME_FACTOR // a little hack to ensure first 2 or so frames get more MP2 frames than they should
}
else throw Error("Unknown audio format: " + AUDIOFORMAT)