mirror of
https://github.com/curioustorvald/tsvm.git
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1903 lines
80 KiB
JavaScript
1903 lines
80 KiB
JavaScript
// Created by CuriousTorvald and Claude on 2025-09-13.
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// TSVM Advanced Video (TAV) Format Decoder - DWT-based compression
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// Adapted from the working playtev.js decoder
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// Usage: playtav moviefile.tav [options]
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// Options: -i (interactive)
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const MAXMEM = sys.maxmem()
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const WIDTH = 560
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const HEIGHT = 448
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const TAV_MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x54, 0x41, 0x56] // "\x1FTSVM TAV"
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const UCF_MAGIC = [0x1F, 0x54, 0x53, 0x56, 0x4D, 0x55, 0x43, 0x46] // "\x1FTSVM UCF"
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const TAV_VERSION = 1 // Initial DWT version
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const UCF_VERSION = 1
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const ADDRESSING_EXTERNAL = 0x01
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const ADDRESSING_INTERNAL = 0x02
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const SND_BASE_ADDR = audio.getBaseAddr()
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const pcm = require("pcm")
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const MP2_FRAME_SIZE = [144,216,252,288,360,432,504,576,720,864,1008,1152,1440,1728]
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// Tile encoding modes (same as TEV block modes)
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const TAV_MODE_SKIP = 0x00
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const TAV_MODE_INTRA = 0x01
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const TAV_MODE_INTER = 0x02
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const TAV_MODE_MOTION = 0x03
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// Packet types (same as TEV)
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const TAV_PACKET_IFRAME = 0x10
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const TAV_PACKET_PFRAME = 0x11
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const TAV_PACKET_GOP_UNIFIED = 0x12 // Unified 3D DWT GOP (temporal + spatial)
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const TAV_PACKET_AUDIO_MP2 = 0x20
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const TAV_PACKET_AUDIO_NATIVE = 0x21
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const TAV_PACKET_AUDIO_PCM_16LE = 0x22
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const TAV_PACKET_AUDIO_ADPCM = 0x23
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const TAV_PACKET_SUBTITLE = 0x30
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const TAV_PACKET_AUDIO_BUNDLED = 0x40 // Entire MP2 audio file in single packet
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const TAV_PACKET_EXTENDED_HDR = 0xEF
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const TAV_PACKET_GOP_SYNC = 0xFC // GOP sync (N frames decoded from GOP block)
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const TAV_PACKET_TIMECODE = 0xFD
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const TAV_PACKET_SYNC_NTSC = 0xFE
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const TAV_PACKET_SYNC = 0xFF
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const TAV_FILE_HEADER_FIRST = 0x1F
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// Wavelet filter types
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const WAVELET_5_3_REVERSIBLE = 0
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const WAVELET_9_7_IRREVERSIBLE = 1
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const WAVELET_BIORTHOGONAL_13_7 = 2
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const WAVELET_DD4 = 16
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const WAVELET_HAAR = 255
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// Subtitle opcodes (SSF format - same as TEV)
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const SSF_OP_NOP = 0x00
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const SSF_OP_SHOW = 0x01
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const SSF_OP_HIDE = 0x02
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const SSF_OP_MOVE = 0x03
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const SSF_OP_UPLOAD_LOW_FONT = 0x80
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const SSF_OP_UPLOAD_HIGH_FONT = 0x81
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// Subtitle state
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let subtitleVisible = false
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let subtitleText = ""
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let subtitlePosition = 0 // 0=bottom center (default)
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// Parse command line options
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let interactive = false
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let filmGrainLevel = null
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if (exec_args.length > 2) {
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for (let i = 2; i < exec_args.length; i++) {
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const arg = exec_args[i].toLowerCase()
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if (arg === "-i") {
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interactive = true
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}
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else if (arg.startsWith("--filter-film-grain")) {
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// Extract noise level from argument
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const parts = arg.split(/[=\s]/)
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if (parts.length > 1) {
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const level = parseInt(parts[1])
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if (!isNaN(level) && level >= 1 && level <= 32767) {
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filmGrainLevel = level
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}
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}
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// Try next argument if no '=' found
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else if (i + 1 < exec_args.length) {
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const level = parseInt(exec_args[i + 1])
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if (!isNaN(level) && level >= 1 && level <= 32767) {
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filmGrainLevel = level
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i++ // Skip next arg
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}
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}
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}
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}
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}
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const fullFilePath = _G.shell.resolvePathInput(exec_args[1])
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const FILE_LENGTH = files.open(fullFilePath.full).size
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let videoRateBin = []
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let errorlevel = 0
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let notifHideTimer = 0
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const NOTIF_SHOWUPTIME = 3000000000
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let [cy, cx] = con.getyx()
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let gui = require("playgui")
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let seqread = undefined
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let fullFilePathStr = fullFilePath.full
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let fontUploaded = false
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// Select seqread driver to use
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if (fullFilePathStr.startsWith('$:/TAPE') || fullFilePathStr.startsWith('$:\\TAPE')) {
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seqread = require("seqreadtape")
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seqread.prepare(fullFilePathStr)
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seqread.seek(0)
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} else {
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seqread = require("seqread")
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seqread.prepare(fullFilePathStr)
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}
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con.clear()
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con.curs_set(0)
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graphics.setGraphicsMode(4) // initially set to 4bpp mode
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graphics.setGraphicsMode(5) // set to 8bpp mode. If GPU don't support it, mode will remain to 4
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graphics.clearPixels(0)
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graphics.clearPixels2(0)
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graphics.clearPixels3(0)
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graphics.clearPixels4(0)
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const gpuGraphicsMode = graphics.getGraphicsMode()
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// Initialize audio
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audio.resetParams(0)
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audio.purgeQueue(0)
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audio.setPcmMode(0)
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audio.setMasterVolume(0, 255)
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// set colour zero as half-opaque black
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graphics.setPalette(0, 0, 0, 0, 7)
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function processSubtitlePacket(packetSize) {
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// Read subtitle packet data according to SSF format
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// uint24 index + uint8 opcode + variable arguments
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let index = 0
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// Read 24-bit index (little-endian)
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let indexByte0 = seqread.readOneByte()
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let indexByte1 = seqread.readOneByte()
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let indexByte2 = seqread.readOneByte()
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index = indexByte0 | (indexByte1 << 8) | (indexByte2 << 16)
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let opcode = seqread.readOneByte()
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let remainingBytes = packetSize - 4 // Subtract 3 bytes for index + 1 byte for opcode
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switch (opcode) {
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case SSF_OP_SHOW: {
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// Read UTF-8 text until null terminator
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if (remainingBytes > 1) {
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let textBytes = seqread.readBytes(remainingBytes)
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let textStr = ""
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// Convert bytes to string, stopping at null terminator
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for (let i = 0; i < remainingBytes - 1; i++) { // -1 for null terminator
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let byte = sys.peek(textBytes + i)
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if (byte === 0) break
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textStr += String.fromCharCode(byte)
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}
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sys.free(textBytes)
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subtitleText = textStr
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subtitleVisible = true
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gui.displaySubtitle(subtitleText, fontUploaded, subtitlePosition)
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}
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break
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}
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case SSF_OP_HIDE: {
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subtitleVisible = false
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subtitleText = ""
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gui.clearSubtitleArea()
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break
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}
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case SSF_OP_MOVE: {
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if (remainingBytes >= 2) { // Need at least 1 byte for position + 1 null terminator
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let newPosition = seqread.readOneByte()
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seqread.readOneByte() // Read null terminator
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if (newPosition >= 0 && newPosition <= 7) {
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subtitlePosition = newPosition
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// Re-display current subtitle at new position if visible
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if (subtitleVisible && subtitleText.length > 0) {
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gui.clearSubtitleArea()
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gui.displaySubtitle(subtitleText, fontUploaded, subtitlePosition)
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}
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}
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}
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break
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}
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case SSF_OP_UPLOAD_LOW_FONT:
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case SSF_OP_UPLOAD_HIGH_FONT: {
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// Font upload - read payload length and font data
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if (remainingBytes >= 3) { // uint16 length + at least 1 byte data
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let payloadLen = seqread.readShort()
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serial.println(`Uploading ${(opcode == SSF_OP_UPLOAD_LOW_FONT) ? 'low' : 'high'} font rom (${payloadLen} bytes)`)
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if (remainingBytes >= payloadLen + 2) {
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let fontData = seqread.readBytes(payloadLen)
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// upload font data
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for (let i = 0; i < Math.min(payloadLen, 1920); i++) sys.poke(-133121 - i, sys.peek(fontData + i))
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sys.poke(-1299460, (opcode == SSF_OP_UPLOAD_LOW_FONT) ? 18 : 19)
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sys.free(fontData)
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}
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fontUploaded = true
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}
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break
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}
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case SSF_OP_NOP:
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default: {
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// Skip remaining bytes
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if (remainingBytes > 0) {
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let skipBytes = seqread.readBytes(remainingBytes)
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sys.free(skipBytes)
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}
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if (interactive && opcode !== SSF_OP_NOP) {
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serial.println(`[SUBTITLE UNKNOWN] Index: ${index}, Opcode: 0x${opcode.toString(16).padStart(2, '0')}`)
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}
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break
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}
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}
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}
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const QLUT = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,66,68,70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220,224,228,232,236,240,244,248,252,256,264,272,280,288,296,304,312,320,328,336,344,352,360,368,376,384,392,400,408,416,424,432,440,448,456,464,472,480,488,496,504,512,528,544,560,576,592,608,624,640,656,672,688,704,720,736,752,768,784,800,816,832,848,864,880,896,912,928,944,960,976,992,1008,1024,1056,1088,1120,1152,1184,1216,1248,1280,1312,1344,1376,1408,1440,1472,1504,1536,1568,1600,1632,1664,1696,1728,1760,1792,1824,1856,1888,1920,1952,1984,2016,2048,2112,2176,2240,2304,2368,2432,2496,2560,2624,2688,2752,2816,2880,2944,3008,3072,3136,3200,3264,3328,3392,3456,3520,3584,3648,3712,3776,3840,3904,3968,4032,4096];
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// TAV header structure (32 bytes vs TEV's 24 bytes)
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let header = {
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magic: new Array(8),
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version: 0,
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width: 0,
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height: 0,
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fps: 0,
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totalFrames: 0,
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waveletFilter: 0, // TAV-specific: wavelet filter type
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decompLevels: 0, // TAV-specific: decomposition levels
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qualityY: 0, // TAV-specific: Y channel quality
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qualityCo: 0, // TAV-specific: Co channel quality
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qualityCg: 0, // TAV-specific: Cg channel quality
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extraFlags: 0,
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videoFlags: 0,
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qualityLevel: 0,
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channelLayout: 0,
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entropyCoder: 0, // 0 = Twobit-map, 1 = EZBC
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fileRole: 0
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}
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// Read and validate header
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for (let i = 0; i < 8; i++) {
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header.magic[i] = seqread.readOneByte()
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}
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// Validate magic number
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let magicValid = true
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for (let i = 0; i < 8; i++) {
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if (header.magic[i] !== TAV_MAGIC[i]) {
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magicValid = false
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break
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}
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}
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if (!magicValid) {
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printerrln("Error: Invalid TAV file format")
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errorlevel = 1
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return
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}
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header.version = seqread.readOneByte()
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header.width = seqread.readShort()
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header.height = seqread.readShort()
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header.fps = seqread.readOneByte()
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header.totalFrames = seqread.readInt()
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header.waveletFilter = seqread.readOneByte()
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header.decompLevels = seqread.readOneByte()
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header.qualityY = seqread.readOneByte()
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header.qualityCo = seqread.readOneByte()
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header.qualityCg = seqread.readOneByte()
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header.extraFlags = seqread.readOneByte()
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header.videoFlags = seqread.readOneByte()
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header.qualityLevel = seqread.readOneByte() // the decoder expects biased value
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header.channelLayout = seqread.readOneByte()
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header.entropyCoder = seqread.readOneByte()
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// Skip reserved bytes (2) and device orientation (1)
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seqread.skip(3)
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header.fileRole = seqread.readOneByte()
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if (header.version < 1 || header.version > 8) {
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printerrln(`Error: Unsupported TAV version ${header.version}`)
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errorlevel = 1
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return
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}
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// Helper function to decode channel layout name
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function getChannelLayoutName(layout) {
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switch (layout) {
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case 0: return "Y-Co-Cg"
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case 1: return "Y-Co-Cg-A"
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case 2: return "Y-only"
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case 3: return "Y-A"
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case 4: return "Co-Cg"
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case 5: return "Co-Cg-A"
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default: return `Unknown (${layout})`
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}
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}
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const hasAudio = (header.extraFlags & 0x01) !== 0
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const hasSubtitles = (header.extraFlags & 0x02) !== 0
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const progressiveTransmission = (header.extraFlags & 0x04) !== 0
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const roiCoding = (header.extraFlags & 0x08) !== 0
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const isInterlaced = (header.videoFlags & 0x01) !== 0
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const isNTSC = (header.videoFlags & 0x02) !== 0
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const isLossless = (header.videoFlags & 0x04) !== 0
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// Calculate tile dimensions (112x112 vs TEV's 16x16 blocks)
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const tilesX = Math.ceil(header.width / 2)
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const tilesY = Math.ceil(header.height / 2)
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const numTiles = 4
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console.log(`TAV Decoder`)
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console.log(`Resolution: ${header.width}x${header.height}`)
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console.log(`FPS: ${header.fps}`)
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console.log(`Total frames: ${header.totalFrames}`)
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console.log(`Wavelet filter: ${header.waveletFilter === WAVELET_5_3_REVERSIBLE ? "5/3 reversible" : header.waveletFilter === WAVELET_9_7_IRREVERSIBLE ? "9/7 irreversible" : header.waveletFilter === WAVELET_BIORTHOGONAL_13_7 ? "Biorthogonal 13/7" : header.waveletFilter === WAVELET_DD4 ? "DD-4" : header.waveletFilter === WAVELET_HAAR ? "Haar" : "unknown"}`)
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console.log(`Decomposition levels: ${header.decompLevels}`)
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console.log(`Quality: Y=${QLUT[header.qualityY]}, Co=${QLUT[header.qualityCo]}, Cg=${QLUT[header.qualityCg]}`)
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console.log(`Channel layout: ${getChannelLayoutName(header.channelLayout)}`)
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console.log(`Entropy coder: ${header.entropyCoder === 0 ? "Twobit-map" : header.entropyCoder === 1 ? "EZBC" : "Unknown"}`)
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console.log(`Tiles: ${tilesX}x${tilesY} (${numTiles} total)`)
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console.log(`Colour space: ${header.version % 2 == 0 ? "ICtCp" : "YCoCg-R"}`)
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console.log(`Features: ${hasAudio ? "Audio " : ""}${hasSubtitles ? "Subtitles " : ""}${progressiveTransmission ? "Progressive " : ""}${roiCoding ? "ROI " : ""}`)
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console.log(`Video flags raw: 0x${header.videoFlags.toString(16)}`)
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console.log(`Scan type: ${isInterlaced ? "Interlaced" : "Progressive"}`)
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// Adjust decode height for interlaced content
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// For interlaced: header.height is display height (448)
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// Each field is half of display height (448/2 = 224)
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let decodeHeight = isInterlaced ? (header.height >> 1) : header.height
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// Frame buffer addresses - same as TEV
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const FRAME_PIXELS = header.width * header.height
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const FRAME_SIZE = FRAME_PIXELS * 3 // RGB buffer size
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// Triple-buffering: Fixed slot sizes in videoBuffer (48 MB total)
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const BUFFER_SLOTS = 3 // Three slots: playing, ready, decoding
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const MAX_GOP_SIZE = 24 // Maximum frames per slot (24 * 752KB = ~18.1MB per slot)
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const SLOT_SIZE = MAX_GOP_SIZE * FRAME_SIZE // Fixed slot size regardless of actual GOP size
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console.log(`Triple-buffering: ${BUFFER_SLOTS} slots, max ${MAX_GOP_SIZE} frames/slot, ${(SLOT_SIZE / 1048576).toFixed(1)}MB per slot`)
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const RGB_BUFFER_A = sys.malloc(FRAME_SIZE)
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const RGB_BUFFER_B = sys.malloc(FRAME_SIZE)
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// Field buffers for interlaced mode (half-height fields)
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const FIELD_SIZE = header.width * decodeHeight * 3
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const CURR_FIELD_BUFFER = isInterlaced ? sys.malloc(FIELD_SIZE) : 0
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const PREV_FIELD_BUFFER = isInterlaced ? sys.malloc(FIELD_SIZE) : 0
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const NEXT_FIELD_BUFFER = isInterlaced ? sys.malloc(FIELD_SIZE) : 0
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// Ping-pong buffer pointers (swap instead of copy)
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let CURRENT_RGB_ADDR = RGB_BUFFER_A
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let PREV_RGB_ADDR = RGB_BUFFER_B
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// Initialize field buffers to black for interlaced mode
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if (isInterlaced) {
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sys.memset(CURR_FIELD_BUFFER, 0, FIELD_SIZE)
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sys.memset(PREV_FIELD_BUFFER, 0, FIELD_SIZE)
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sys.memset(NEXT_FIELD_BUFFER, 0, FIELD_SIZE)
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}
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// Field buffer pointers for temporal deinterlacing
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let prevFieldAddr = PREV_FIELD_BUFFER
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let currentFieldAddr = CURR_FIELD_BUFFER
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let nextFieldAddr = NEXT_FIELD_BUFFER
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// Audio state
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let audioBufferBytesLastFrame = 0
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let frame_cnt = 0
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let frametime = 1000000000.0 / header.fps
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let mp2Initialised = false
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let audioFired = false
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// Performance tracking variables (from TEV)
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let decompressTime = 0
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let decodeTime = 0
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let uploadTime = 0
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let biasTime = 0
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const nativeWidth = graphics.getPixelDimension()[0]
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const nativeHeight = graphics.getPixelDimension()[1]
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const BIAS_LIGHTING_MIN = 1.0 / 16.0
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let oldBgcol = [BIAS_LIGHTING_MIN, BIAS_LIGHTING_MIN, BIAS_LIGHTING_MIN]
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let notifHidden = false
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function getRGBfromScr(x, y) {
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let offset = y * WIDTH + x
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let fb1 = sys.peek(-1048577 - offset)
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let fb2 = sys.peek(-1310721 - offset)
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let fb3 = sys.peek(-1310721 - (262144 * (gpuGraphicsMode - 4)) - offset)
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if (gpuGraphicsMode == 4)
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return [(fb1 >>> 4) / 15.0, (fb1 & 15) / 15.0, (fb2 >>> 4) / 15.0]
|
|
else
|
|
return [fb1 / 255.0, fb2 / 255.0, fb3 / 255.0]
|
|
}
|
|
|
|
function setBiasLighting() {
|
|
let samples = []
|
|
let width = header.width; let height = header.height
|
|
|
|
let offsetX = Math.floor((nativeWidth - width) / 2)
|
|
let offsetY = Math.floor((nativeHeight - height) / 2)
|
|
|
|
let sampleStepX = Math.max(8, Math.floor(width / 18))
|
|
let sampleStepY = Math.max(8, Math.floor(height / 17))
|
|
let borderMargin = Math.min(8, Math.floor(width / 70))
|
|
|
|
for (let x = borderMargin; x < width - borderMargin; x += sampleStepX) {
|
|
samples.push(getRGBfromScr(x + offsetX, borderMargin + offsetY))
|
|
samples.push(getRGBfromScr(x + offsetX, height - borderMargin - 1 + offsetY))
|
|
}
|
|
|
|
for (let y = borderMargin; y < height - borderMargin; y += sampleStepY) {
|
|
samples.push(getRGBfromScr(borderMargin + offsetX, y + offsetY))
|
|
samples.push(getRGBfromScr(width - borderMargin - 1 + offsetX, y + offsetY))
|
|
}
|
|
|
|
let out = [0.0, 0.0, 0.0]
|
|
samples.forEach(rgb=>{
|
|
out[0] += rgb[0]
|
|
out[1] += rgb[1]
|
|
out[2] += rgb[2]
|
|
})
|
|
out[0] = BIAS_LIGHTING_MIN + (out[0] / samples.length / 2.0)
|
|
out[1] = BIAS_LIGHTING_MIN + (out[1] / samples.length / 2.0)
|
|
out[2] = BIAS_LIGHTING_MIN + (out[2] / samples.length / 2.0)
|
|
|
|
let bgr = (oldBgcol[0]*5 + out[0]) / 6.0
|
|
let bgg = (oldBgcol[1]*5 + out[1]) / 6.0
|
|
let bgb = (oldBgcol[2]*5 + out[2]) / 6.0
|
|
|
|
oldBgcol = [bgr, bgg, bgb]
|
|
|
|
graphics.setBackground(Math.round(bgr * 255), Math.round(bgg * 255), Math.round(bgb * 255))
|
|
}
|
|
|
|
function updateDataRateBin(rate) {
|
|
videoRateBin.push(rate)
|
|
if (videoRateBin.length > 10) {
|
|
videoRateBin.shift()
|
|
}
|
|
}
|
|
|
|
function getVideoRate() {
|
|
let baseRate = videoRateBin.reduce((a, c) => a + c, 0)
|
|
let mult = header.fps / videoRateBin.length
|
|
return baseRate * mult
|
|
}
|
|
|
|
let FRAME_TIME = 1.0 / header.fps
|
|
|
|
let frameCount = 0
|
|
let trueFrameCount = 0
|
|
let stopPlay = false
|
|
let akku = FRAME_TIME
|
|
let akku2 = 0.0
|
|
let nextFrameTime = 0 // Absolute time when next frame should display (nanoseconds)
|
|
let currentFileIndex = 1 // Track which file we're playing in concatenated stream
|
|
let totalFilesProcessed = 0
|
|
let decoderDbgInfo = {}
|
|
|
|
// GOP triple-buffering state (3 slots: playing, ready, decoding)
|
|
let currentGopBufferSlot = 0 // Which buffer slot is currently being displayed (0, 1, or 2)
|
|
let currentGopSize = 0 // Number of frames in current GOP being displayed
|
|
let currentGopFrameIndex = 0 // Which frame of current GOP we're displaying
|
|
let readyGopData = null // GOP that's already decoded and ready to play (next in line)
|
|
let decodingGopData = null // GOP currently being decoded in background
|
|
let asyncDecodeInProgress = false // Track if async decode is running
|
|
let asyncDecodeSlot = 0 // Which slot the async decode is targeting
|
|
|
|
// I-frame (non-GOP) timing control
|
|
let iframeReady = false // Track if an I-frame/P-frame is decoded and ready to display
|
|
let asyncDecodeGopSize = 0 // Size of GOP being decoded async
|
|
let asyncDecodePtr = 0 // Compressed data pointer to free after decode
|
|
let asyncDecodeStartTime = 0 // When async decode started (for diagnostics)
|
|
let shouldReadPackets = true // Gate packet reading: false when all 3 buffers are full
|
|
|
|
// Overflow queue for GOPs when all 3 buffers are full (prevents Case 5 discards)
|
|
let overflowQueue = [] // Queue of {gopSize, compressedPtr, compressedSize}
|
|
|
|
// Pre-decoded audio state (for bundled audio packet 0x40)
|
|
let predecodedPcmBuffer = null // Buffer holding pre-decoded PCM data
|
|
let predecodedPcmSize = 0 // Total size of pre-decoded PCM
|
|
let predecodedPcmOffset = 0 // Current position in PCM buffer for streaming
|
|
const PCM_UPLOAD_CHUNK = 2304 // Upload 1152 stereo samples per chunk (one MP2 frame worth)
|
|
|
|
let cueElements = []
|
|
let currentCueIndex = -1 // Track current cue position
|
|
let iframePositions = [] // Track I-frame positions for seeking: [{offset, frameNum}]
|
|
|
|
// Helper function to clean up async decode state (prevents memory leaks)
|
|
function cleanupAsyncDecode() {
|
|
// Free first GOP decode memory if in progress
|
|
if (asyncDecodeInProgress && asyncDecodePtr && asyncDecodePtr !== 0) {
|
|
sys.free(asyncDecodePtr)
|
|
asyncDecodeInProgress = false
|
|
asyncDecodePtr = 0
|
|
asyncDecodeGopSize = 0
|
|
}
|
|
|
|
// Free ready GOP memory if present
|
|
if (readyGopData !== null && readyGopData.compressedPtr && readyGopData.compressedPtr !== 0) {
|
|
sys.free(readyGopData.compressedPtr)
|
|
readyGopData.compressedPtr = 0
|
|
}
|
|
readyGopData = null
|
|
|
|
// Free decoding GOP memory if present
|
|
if (decodingGopData !== null && decodingGopData.compressedPtr && decodingGopData.compressedPtr !== 0) {
|
|
sys.free(decodingGopData.compressedPtr)
|
|
decodingGopData.compressedPtr = 0
|
|
}
|
|
decodingGopData = null
|
|
|
|
// Free pre-decoded PCM buffer if present
|
|
if (predecodedPcmBuffer !== null) {
|
|
sys.free(predecodedPcmBuffer)
|
|
predecodedPcmBuffer = null
|
|
predecodedPcmSize = 0
|
|
predecodedPcmOffset = 0
|
|
}
|
|
|
|
// Reset GOP playback state
|
|
currentGopSize = 0
|
|
currentGopFrameIndex = 0
|
|
nextFrameTime = 0 // Reset frame timing
|
|
shouldReadPackets = true // Resume packet reading after cleanup
|
|
}
|
|
|
|
// Function to find nearest I-frame before or at target frame
|
|
function findNearestIframe(targetFrame) {
|
|
if (iframePositions.length === 0) return null
|
|
|
|
// Find the largest I-frame position <= targetFrame
|
|
let result = null
|
|
for (let i = iframePositions.length - 1; i >= 0; i--) {
|
|
if (iframePositions[i].frameNum <= targetFrame) {
|
|
result = iframePositions[i]
|
|
break
|
|
}
|
|
}
|
|
|
|
// If targetFrame is before first I-frame, return first I-frame
|
|
return result || iframePositions[0]
|
|
}
|
|
|
|
// Function to scan forward and find next I-frame at or after target frame
|
|
function scanForwardToIframe(targetFrame, currentPos) {
|
|
// Save current position
|
|
let savedPos = seqread.getReadCount()
|
|
|
|
try {
|
|
let scanFrameCount = frameCount
|
|
|
|
// Scan forward through packets
|
|
while (seqread.getReadCount() < FILE_LENGTH) {
|
|
let packetPos = seqread.getReadCount()
|
|
let pType = seqread.readOneByte()
|
|
|
|
// Handle sync packets (increment frame counter)
|
|
if (pType === TAV_PACKET_SYNC || pType === TAV_PACKET_SYNC_NTSC) {
|
|
if (pType === TAV_PACKET_SYNC) {
|
|
scanFrameCount++
|
|
}
|
|
continue
|
|
}
|
|
|
|
// Found I-frame at or after target?
|
|
if (pType === TAV_PACKET_IFRAME && scanFrameCount >= targetFrame) {
|
|
// Record this I-frame position for future use
|
|
iframePositions.push({offset: packetPos, frameNum: scanFrameCount})
|
|
return {offset: packetPos, frameNum: scanFrameCount}
|
|
}
|
|
|
|
// Skip over packet payload (all non-sync packets have uint32 size)
|
|
if (pType !== TAV_PACKET_SYNC && pType !== TAV_PACKET_SYNC_NTSC && pType !== TAV_FILE_HEADER_FIRST) {
|
|
let payloadSize = seqread.readInt()
|
|
seqread.skip(payloadSize)
|
|
} else if (pType === TAV_FILE_HEADER_FIRST) {
|
|
// Hit next file header, stop scanning
|
|
break
|
|
}
|
|
}
|
|
|
|
// Didn't find I-frame, restore position
|
|
return null
|
|
|
|
} catch (e) {
|
|
// Error or EOF during scan
|
|
serial.printerr(`Scan error: ${e}`)
|
|
return null
|
|
} finally {
|
|
// Restore original position
|
|
seqread.seek(savedPos)
|
|
}
|
|
}
|
|
|
|
// Function to try reading next TAV file header at current position
|
|
function tryReadNextTAVHeader() {
|
|
// Save current position
|
|
let currentPos = seqread.getReadCount()
|
|
|
|
// Try to read magic number
|
|
let newMagic = new Array(7)
|
|
try {
|
|
for (let i = 0; i < newMagic.length; i++) {
|
|
newMagic[i] = seqread.readOneByte()
|
|
}
|
|
|
|
// compensating the old encoder emitting extra sync packets
|
|
while (newMagic[0] == 255) {
|
|
newMagic.shift(); newMagic[newMagic.length - 1] = seqread.readOneByte()
|
|
}
|
|
|
|
// Check if it matches TAV magic
|
|
let isValidTAV = true
|
|
let isValidUCF = true
|
|
for (let i = 0; i < newMagic.length; i++) {
|
|
if (newMagic[i] !== TAV_MAGIC[i+1]) {
|
|
isValidTAV = false
|
|
}
|
|
}
|
|
for (let i = 0; i < newMagic.length; i++) {
|
|
if (newMagic[i] !== UCF_MAGIC[i+1]) {
|
|
isValidUCF = false
|
|
}
|
|
}
|
|
|
|
if (!isValidTAV && !isValidUCF) {
|
|
serial.printerr("Header mismatch: got "+newMagic.join())
|
|
return 1
|
|
}
|
|
|
|
|
|
if (isValidTAV) {
|
|
serial.println("Got next video file")
|
|
|
|
// Read the rest of the header
|
|
let newHeader = {
|
|
magic: newMagic,
|
|
version: seqread.readOneByte(),
|
|
width: seqread.readShort(),
|
|
height: seqread.readShort(),
|
|
fps: seqread.readOneByte(),
|
|
totalFrames: seqread.readInt(),
|
|
waveletFilter: seqread.readOneByte(),
|
|
decompLevels: seqread.readOneByte(),
|
|
qualityY: seqread.readOneByte(),
|
|
qualityCo: seqread.readOneByte(),
|
|
qualityCg: seqread.readOneByte(),
|
|
extraFlags: seqread.readOneByte(),
|
|
videoFlags: seqread.readOneByte(),
|
|
qualityLevel: seqread.readOneByte(),
|
|
channelLayout: seqread.readOneByte(),
|
|
fileRole: seqread.readOneByte(),
|
|
reserved: new Array(4)
|
|
}
|
|
|
|
serial.println("File header: " + JSON.stringify(newHeader))
|
|
|
|
// Skip reserved bytes
|
|
for (let i = 0; i < 4; i++) {
|
|
seqread.readOneByte()
|
|
}
|
|
|
|
return newHeader
|
|
}
|
|
else if (isValidUCF) {
|
|
serial.println("Got Universal Cue Format")
|
|
|
|
// TODO read and store the cue, then proceed to read next TAV packet (should be 0x1F)
|
|
let version = seqread.readOneByte()
|
|
if (version !== UCF_VERSION) {
|
|
serial.println(`Error: Unsupported UCF version: ${version} (expected ${UCF_VERSION})`)
|
|
return 2
|
|
}
|
|
|
|
let numElements = seqread.readShort()
|
|
let cueSize = seqread.readInt()
|
|
seqread.skip(1)
|
|
|
|
serial.println(`UCF Version: ${version}, Elements: ${numElements}`)
|
|
|
|
// Parse cue elements
|
|
for (let i = 0; i < numElements; i++) {
|
|
let element = {}
|
|
|
|
element.addressingModeAndIntent = seqread.readOneByte()
|
|
element.addressingMode = element.addressingModeAndIntent & 15
|
|
let nameLength = seqread.readShort()
|
|
element.name = seqread.readString(nameLength)
|
|
|
|
if (element.addressingMode === ADDRESSING_EXTERNAL) {
|
|
let pathLength = seqread.readShort()
|
|
element.path = seqread.readString(pathLength)
|
|
serial.println(`Element ${i + 1}: ${element.name} -> ${element.path} (external)`)
|
|
} else if (element.addressingMode === ADDRESSING_INTERNAL) {
|
|
// Read 48-bit offset (6 bytes, little endian)
|
|
let offsetBytes = []
|
|
for (let j = 0; j < 6; j++) {
|
|
offsetBytes.push(seqread.readOneByte())
|
|
}
|
|
|
|
// Split into low 32 bits and high 16 bits
|
|
let low32 = 0
|
|
for (let j = 0; j < 4; j++) {
|
|
low32 |= (offsetBytes[j] << (j * 8))
|
|
}
|
|
|
|
let high16 = 0
|
|
for (let j = 4; j < 6; j++) {
|
|
high16 |= (offsetBytes[j] << ((j - 4) * 8))
|
|
}
|
|
|
|
// Combine using multiplication (avoids bitwise 32-bit limit)
|
|
element.offset = (high16 * 0x100000000) + (low32 >>> 0)
|
|
|
|
serial.println(`Element ${i + 1}: ${element.name} -> offset ${element.offset} (internal)`)
|
|
} else {
|
|
serial.println(`Error: Unknown addressing mode: ${element.addressingMode}`)
|
|
return 5
|
|
}
|
|
|
|
cueElements.push(element)
|
|
}
|
|
|
|
// skip zeros
|
|
let readCount = seqread.getReadCount()
|
|
serial.println(`Skip to first video (${readCount} -> ${cueSize})`)
|
|
seqread.skip(cueSize - readCount + 1)
|
|
currentFileIndex -= 1
|
|
return tryReadNextTAVHeader()
|
|
}
|
|
else {
|
|
serial.printerr("File not TAV/UCF. Magic: " + newMagic.join())
|
|
return 7
|
|
}
|
|
} catch (e) {
|
|
serial.printerr(e)
|
|
|
|
// EOF or read error - restore position and return null
|
|
// Note: seqread doesn't have seek, so we can't restore position
|
|
// This is okay since we're at EOF anyway
|
|
}
|
|
|
|
return null
|
|
}
|
|
|
|
let lastKey = 0
|
|
let skipped = false
|
|
let paused = false
|
|
let debugPrintAkku = 0
|
|
|
|
// Playback loop - properly adapted from TEV with multi-file support
|
|
try {
|
|
let t1 = sys.nanoTime()
|
|
|
|
// Continue loop while:
|
|
// 1. Reading packets (not EOF yet), OR
|
|
// 2. There are buffered GOPs to play (after EOF)
|
|
while (!stopPlay && (seqread.getReadCount() < FILE_LENGTH || currentGopSize > 0 || readyGopData !== null || decodingGopData !== null || asyncDecodeInProgress)) {
|
|
|
|
|
|
// Handle interactive controls
|
|
if (interactive) {
|
|
sys.poke(-40, 1)
|
|
let keyCode = sys.peek(-41)
|
|
|
|
if (!lastKey) {
|
|
if (keyCode == 67) { // Backspace
|
|
stopPlay = true
|
|
break
|
|
}
|
|
else if (keyCode == 62) { // SPACE - pause/resume
|
|
paused = !paused
|
|
if (paused) {
|
|
audio.stop(0)
|
|
serial.println(`Paused at frame ${frameCount}`)
|
|
} else {
|
|
audio.play(0)
|
|
serial.println(`Resumed`)
|
|
}
|
|
}
|
|
else if (keyCode == 19 && cueElements.length > 0) { // Up arrow - previous cue
|
|
currentCueIndex = (currentCueIndex <= 0) ? cueElements.length - 1 : currentCueIndex - 1
|
|
let cue = cueElements[currentCueIndex]
|
|
|
|
if (cue.addressingMode === ADDRESSING_INTERNAL) {
|
|
serial.println(`Seeking to cue: ${cue.name} (offset ${cue.offset})`)
|
|
cleanupAsyncDecode() // Free any pending async decode memory
|
|
seqread.seek(cue.offset)
|
|
frameCount = 0
|
|
akku = FRAME_TIME
|
|
akku2 = 0.0
|
|
audio.purgeQueue(0)
|
|
if (paused) {
|
|
audio.play(0)
|
|
audio.stop(0)
|
|
}
|
|
skipped = true
|
|
}
|
|
}
|
|
else if (keyCode == 20 && cueElements.length > 0) { // Down arrow - next cue
|
|
currentCueIndex = (currentCueIndex >= cueElements.length - 1) ? 0 : currentCueIndex + 1
|
|
let cue = cueElements[currentCueIndex]
|
|
|
|
if (cue.addressingMode === ADDRESSING_INTERNAL) {
|
|
serial.println(`Seeking to cue: ${cue.name} (offset ${cue.offset})`)
|
|
cleanupAsyncDecode() // Free any pending async decode memory
|
|
seqread.seek(cue.offset)
|
|
frameCount = 0
|
|
akku = FRAME_TIME
|
|
akku2 = 0.0
|
|
audio.purgeQueue(0)
|
|
if (paused) {
|
|
audio.play(0)
|
|
audio.stop(0)
|
|
}
|
|
skipped = true
|
|
}
|
|
}
|
|
else if (keyCode == 21) { // Left arrow - seek back 5.5s
|
|
let targetFrame = Math.max(0, frameCount - Math.floor(header.fps * 5.5))
|
|
let seekTarget = findNearestIframe(targetFrame)
|
|
|
|
if (seekTarget) {
|
|
serial.println(`Seeking back to frame ${seekTarget.frameNum} (offset ${seekTarget.offset})`)
|
|
cleanupAsyncDecode() // Free any pending async decode memory
|
|
seqread.seek(seekTarget.offset)
|
|
frameCount = seekTarget.frameNum
|
|
akku = FRAME_TIME
|
|
akku2 -= 5.5
|
|
audio.purgeQueue(0)
|
|
if (paused) {
|
|
audio.play(0)
|
|
audio.stop(0)
|
|
}
|
|
skipped = true
|
|
}
|
|
}
|
|
else if (keyCode == 22) { // Right arrow - seek forward 5s
|
|
let targetFrame = Math.min(header.totalFrames - 1, frameCount + Math.floor(header.fps * 5.0))
|
|
|
|
// Try to find in already-decoded I-frames first
|
|
let seekTarget = findNearestIframe(targetFrame)
|
|
|
|
// If not found or behind current position, scan forward
|
|
if (!seekTarget || seekTarget.frameNum <= frameCount) {
|
|
serial.println(`Scanning forward for I-frame near frame ${targetFrame}...`)
|
|
seekTarget = scanForwardToIframe(targetFrame, seqread.getReadCount())
|
|
}
|
|
|
|
if (seekTarget && seekTarget.frameNum > frameCount) {
|
|
serial.println(`Seeking forward to frame ${seekTarget.frameNum} (offset ${seekTarget.offset})`)
|
|
cleanupAsyncDecode() // Free any pending async decode memory
|
|
seqread.seek(seekTarget.offset)
|
|
frameCount = seekTarget.frameNum
|
|
akku = FRAME_TIME
|
|
akku2 += 5.0
|
|
audio.purgeQueue(0)
|
|
if (paused) {
|
|
audio.play(0)
|
|
audio.stop(0)
|
|
}
|
|
skipped = true
|
|
} else if (!seekTarget) {
|
|
serial.println(`No I-frame found ahead`)
|
|
}
|
|
}
|
|
}
|
|
|
|
lastKey = keyCode
|
|
}
|
|
|
|
// GATED PACKET READING
|
|
// Stop reading when all 3 buffers are full (GOP playing + ready GOP + decoding GOP)
|
|
// Resume reading when GOP finishes (one buffer becomes free)
|
|
// Also stop reading at EOF
|
|
if (shouldReadPackets && !paused && seqread.getReadCount() < FILE_LENGTH) {
|
|
// Read packet header (record position before reading for I-frame tracking)
|
|
let packetOffset = seqread.getReadCount()
|
|
var packetType = seqread.readOneByte()
|
|
|
|
// serial.println(`Packet ${packetType} at offset ${seqread.getReadCount() - 1}`)
|
|
|
|
// Try to read next TAV file header
|
|
if (packetType == TAV_FILE_HEADER_FIRST) {
|
|
let nextHeader = tryReadNextTAVHeader()
|
|
if (nextHeader) {
|
|
// Found another TAV file - update header and reset counters
|
|
header = nextHeader
|
|
frameCount = 0
|
|
akku = 0.0
|
|
akku2 = 0.0
|
|
FRAME_TIME = 1.0 / header.fps
|
|
audio.purgeQueue(0)
|
|
currentFileIndex++
|
|
if (skipped) {
|
|
skipped = false
|
|
} else {
|
|
currentCueIndex++
|
|
}
|
|
totalFilesProcessed++
|
|
|
|
console.log(`\nStarting file ${currentFileIndex}:`)
|
|
console.log(`Resolution: ${header.width}x${header.height}`)
|
|
console.log(`FPS: ${header.fps}`)
|
|
console.log(`Total frames: ${header.totalFrames}`)
|
|
console.log(`Wavelet filter: ${header.waveletFilter === WAVELET_5_3_REVERSIBLE ? "5/3 reversible" : header.waveletFilter === WAVELET_9_7_IRREVERSIBLE ? "9/7 irreversible" : header.waveletFilter === WAVELET_BIORTHOGONAL_13_7 ? "Biorthogonal 13/7" : header.waveletFilter === WAVELET_DD4 ? "DD-4" : header.waveletFilter === WAVELET_HAAR ? "Haar" : "unknown"}`)
|
|
console.log(`Quality: Y=${header.qualityY}, Co=${header.qualityCo}, Cg=${header.qualityCg}`)
|
|
|
|
// Continue with new file
|
|
packetType = seqread.readOneByte()
|
|
}
|
|
else {
|
|
serial.printerr("Header read failed: " + JSON.stringify(nextHeader))
|
|
break
|
|
}
|
|
}
|
|
|
|
if (packetType === TAV_PACKET_SYNC || packetType == TAV_PACKET_SYNC_NTSC) {
|
|
// Sync packet - no additional data (for I/P frames, not GOPs)
|
|
akku -= FRAME_TIME
|
|
if (packetType == TAV_PACKET_SYNC) {
|
|
frameCount++
|
|
}
|
|
|
|
trueFrameCount++
|
|
|
|
// Swap ping-pong buffers
|
|
let temp = CURRENT_RGB_ADDR
|
|
CURRENT_RGB_ADDR = PREV_RGB_ADDR
|
|
PREV_RGB_ADDR = temp
|
|
|
|
}
|
|
else if (packetType === TAV_PACKET_IFRAME || packetType === TAV_PACKET_PFRAME) {
|
|
// Record I-frame position for seeking
|
|
if (packetType === TAV_PACKET_IFRAME) {
|
|
iframePositions.push({offset: packetOffset, frameNum: frameCount})
|
|
}
|
|
|
|
// Video packet
|
|
const compressedSize = seqread.readInt()
|
|
|
|
// Read compressed tile data
|
|
let compressedPtr = seqread.readBytes(compressedSize)
|
|
updateDataRateBin(compressedSize)
|
|
|
|
try {
|
|
let decodeStart = sys.nanoTime()
|
|
|
|
// For interlaced mode, decode to field buffer at half height
|
|
let decodeTarget = isInterlaced ? currentFieldAddr : CURRENT_RGB_ADDR
|
|
|
|
// Debug interlaced mode
|
|
if (frameCount === 0 && isInterlaced) {
|
|
serial.println(`[DEBUG] Interlaced mode active:`)
|
|
serial.println(` decodeHeight: ${decodeHeight}`)
|
|
serial.println(` currentFieldAddr: ${currentFieldAddr}`)
|
|
serial.println(` prevFieldAddr: ${prevFieldAddr}`)
|
|
serial.println(` nextFieldAddr: ${nextFieldAddr}`)
|
|
serial.println(` FIELD_SIZE: ${FIELD_SIZE}`)
|
|
}
|
|
|
|
// grain synthesis is now part of the spec
|
|
// TODO if filmGrainLevel != null, user requested custom film grain level
|
|
|
|
// Call new TAV hardware decoder that handles Zstd decompression internally
|
|
// Note: No longer using JS gzip.decompFromTo - Kotlin handles Zstd natively
|
|
decoderDbgInfo = graphics.tavDecodeCompressed(
|
|
compressedPtr, // Pass compressed data directly
|
|
compressedSize, // Size of compressed data
|
|
decodeTarget, PREV_RGB_ADDR, // RGB buffer pointers (field buffer for interlaced)
|
|
header.width, decodeHeight, // Use half height for interlaced
|
|
header.qualityLevel, QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout, // Channel layout for variable processing
|
|
trueFrameCount,
|
|
header.waveletFilter, // TAV-specific parameter
|
|
header.decompLevels, // TAV-specific parameter
|
|
isLossless,
|
|
header.version, // TAV version for colour space detection
|
|
header.entropyCoder // Entropy coder: 0 = Twobit-map, 1 = EZBC
|
|
)
|
|
|
|
decodeTime = (sys.nanoTime() - decodeStart) / 1000000.0
|
|
decompressTime = 0 // Decompression time now included in decode time
|
|
|
|
// For interlaced: deinterlace fields into full frame, otherwise upload directly
|
|
let uploadStart = sys.nanoTime()
|
|
if (isInterlaced) {
|
|
if (frameCount === 0) {
|
|
serial.println(`[DEBUG] Calling tavDeinterlace for first frame`)
|
|
}
|
|
// Weave fields using temporal deinterlacing (yadif algorithm)
|
|
try {
|
|
graphics.tavDeinterlace(trueFrameCount, header.width, decodeHeight,
|
|
prevFieldAddr, currentFieldAddr, nextFieldAddr,
|
|
CURRENT_RGB_ADDR, "yadif")
|
|
if (frameCount === 0) {
|
|
serial.println(`[DEBUG] tavDeinterlace succeeded`)
|
|
}
|
|
} catch (deinterlaceError) {
|
|
serial.printerr(`[ERROR] tavDeinterlace failed: ${deinterlaceError}`)
|
|
serial.printerr(` frame: ${trueFrameCount}, width: ${header.width}, height: ${decodeHeight}`)
|
|
serial.printerr(` prevField: ${prevFieldAddr}, currField: ${currentFieldAddr}, nextField: ${nextFieldAddr}`)
|
|
throw deinterlaceError
|
|
}
|
|
|
|
// Rotate field buffers for next frame: NEXT -> CURRENT -> PREV
|
|
let tempField = prevFieldAddr
|
|
prevFieldAddr = currentFieldAddr
|
|
currentFieldAddr = nextFieldAddr
|
|
nextFieldAddr = tempField
|
|
} else {
|
|
if (frameCount === 0) {
|
|
serial.println(`[DEBUG] Progressive mode - no deinterlacing`)
|
|
}
|
|
}
|
|
|
|
// Don't upload immediately - let timing loop handle it
|
|
// Mark frame as ready for time-based display
|
|
iframeReady = true
|
|
uploadTime = 0 // Upload will happen in timing section below
|
|
|
|
} catch (e) {
|
|
console.log(`Frame ${frameCount}: decode failed: ${e}`)
|
|
} finally {
|
|
sys.free(compressedPtr)
|
|
}
|
|
|
|
}
|
|
else if (packetType === TAV_PACKET_GOP_UNIFIED) {
|
|
// GOP Unified packet (temporal 3D DWT)
|
|
// DOUBLE-BUFFERING: Decode GOP N+1 while playing GOP N to eliminate hiccups
|
|
|
|
// Read GOP packet data
|
|
const gopSize = seqread.readOneByte()
|
|
const compressedSize = seqread.readInt()
|
|
let compressedPtr = seqread.readBytes(compressedSize)
|
|
updateDataRateBin(compressedSize)
|
|
|
|
// TRIPLE-BUFFERING LOGIC (3 slots: playing, ready, decoding):
|
|
// - If no GOP playing: decode first GOP to slot 0
|
|
// - If GOP playing but no ready GOP: decode to ready slot (next in rotation)
|
|
// - If GOP playing and ready GOP exists but no decoding: decode to decoding slot
|
|
// - Otherwise: all 3 buffers full, ignore packet
|
|
|
|
// Check GOP size fits in slot
|
|
if (gopSize > MAX_GOP_SIZE) {
|
|
console.log(`[GOP] Error: GOP size ${gopSize} exceeds max ${MAX_GOP_SIZE} frames`)
|
|
sys.free(compressedPtr)
|
|
break
|
|
}
|
|
|
|
if (currentGopSize === 0 && !asyncDecodeInProgress) {
|
|
// Case 1: No active GOP and no decode in progress - decode first GOP
|
|
const bufferSlot = currentGopBufferSlot
|
|
const bufferOffset = bufferSlot * SLOT_SIZE
|
|
|
|
// Defensive: free any old async decode memory
|
|
if (asyncDecodePtr !== 0) {
|
|
sys.free(asyncDecodePtr)
|
|
asyncDecodePtr = 0
|
|
}
|
|
|
|
// Start async decode
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
compressedPtr, compressedSize, gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
bufferOffset
|
|
)
|
|
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = bufferSlot
|
|
asyncDecodeGopSize = gopSize
|
|
asyncDecodePtr = compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
} else if (currentGopSize === 0 && asyncDecodeInProgress) {
|
|
// Case 2: First GOP still decoding - buffer GOPs without starting decode
|
|
// These will be decoded once playback starts
|
|
if (readyGopData === null) {
|
|
// Buffer as ready GOP (will decode when first GOP finishes)
|
|
const nextSlot = (currentGopBufferSlot + 1) % BUFFER_SLOTS
|
|
readyGopData = {
|
|
gopSize: gopSize,
|
|
slot: nextSlot,
|
|
compressedPtr: compressedPtr,
|
|
compressedSize: compressedSize,
|
|
needsDecode: true, // Flag that decode hasn't started yet
|
|
startTime: 0,
|
|
timeRemaining: 0
|
|
}
|
|
if (interactive) {
|
|
console.log(`[GOP] Buffered GOP ${gopSize} frames to ready slot during first GOP decode`)
|
|
}
|
|
} else if (decodingGopData === null) {
|
|
// Buffer as decoding GOP (will decode after ready GOP)
|
|
const decodingSlot = (currentGopBufferSlot + 2) % BUFFER_SLOTS
|
|
decodingGopData = {
|
|
gopSize: gopSize,
|
|
slot: decodingSlot,
|
|
compressedPtr: compressedPtr,
|
|
compressedSize: compressedSize,
|
|
needsDecode: true, // Flag that decode hasn't started yet
|
|
startTime: 0,
|
|
timeRemaining: 0
|
|
}
|
|
if (interactive) {
|
|
console.log(`[GOP] Buffered GOP ${gopSize} frames to decoding slot during first GOP decode`)
|
|
}
|
|
|
|
// CRITICAL: Stop reading packets now that all 3 buffers are full
|
|
shouldReadPackets = false
|
|
if (interactive) {
|
|
console.log(`[GOP] All 3 buffers full during first GOP decode - stopping packet reading`)
|
|
}
|
|
} else {
|
|
// All 3 buffers full - discard this GOP (shouldn't happen now with gate)
|
|
if (interactive) {
|
|
console.log(`[GOP] WARNING: All 3 buffers full during first GOP decode - discarding GOP ${gopSize} frames`)
|
|
}
|
|
sys.free(compressedPtr)
|
|
}
|
|
|
|
} else if (currentGopSize > 0 && readyGopData === null && !asyncDecodeInProgress && graphics.tavDecodeGopIsComplete()) {
|
|
// Case 3: GOP playing, no ready GOP, no decode in progress - decode to ready slot
|
|
const nextSlot = (currentGopBufferSlot + 1) % BUFFER_SLOTS
|
|
const nextOffset = nextSlot * SLOT_SIZE
|
|
|
|
const framesRemaining = currentGopSize - currentGopFrameIndex
|
|
const timeRemaining = framesRemaining * FRAME_TIME * 1000.0
|
|
|
|
// Start async decode to ready slot
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
compressedPtr, compressedSize, gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
nextOffset
|
|
)
|
|
|
|
// Set async decode tracking variables
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = nextSlot
|
|
asyncDecodeGopSize = gopSize
|
|
asyncDecodePtr = compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
readyGopData = {
|
|
gopSize: gopSize,
|
|
slot: nextSlot,
|
|
compressedPtr: compressedPtr,
|
|
startTime: asyncDecodeStartTime,
|
|
timeRemaining: timeRemaining
|
|
}
|
|
|
|
// CRITICAL: Stop reading packets immediately after starting decode
|
|
// to prevent next GOP from being discarded in Case 5
|
|
shouldReadPackets = false
|
|
if (interactive) {
|
|
console.log(`[GOP] Case 3: Started decode to ready slot - stopping packet reading`)
|
|
}
|
|
|
|
} else if (currentGopSize > 0 && readyGopData !== null && decodingGopData === null && !asyncDecodeInProgress && graphics.tavDecodeGopIsComplete()) {
|
|
// Case 4: GOP playing, ready GOP exists, no decoding GOP, no decode in progress - decode to decoding slot
|
|
const decodingSlot = (currentGopBufferSlot + 2) % BUFFER_SLOTS
|
|
const decodingOffset = decodingSlot * SLOT_SIZE
|
|
|
|
const framesRemaining = currentGopSize - currentGopFrameIndex
|
|
const timeRemaining = framesRemaining * FRAME_TIME * 1000.0
|
|
|
|
// Start async decode to decoding slot
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
compressedPtr, compressedSize, gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
decodingOffset
|
|
)
|
|
|
|
// Set async decode tracking variables
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = decodingSlot
|
|
asyncDecodeGopSize = gopSize
|
|
asyncDecodePtr = compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
decodingGopData = {
|
|
gopSize: gopSize,
|
|
slot: decodingSlot,
|
|
compressedPtr: compressedPtr,
|
|
startTime: asyncDecodeStartTime,
|
|
timeRemaining: timeRemaining
|
|
}
|
|
|
|
// CRITICAL: Stop reading packets immediately after starting decode
|
|
// All 3 buffers are now full (playing + ready + decoding)
|
|
shouldReadPackets = false
|
|
if (interactive) {
|
|
console.log(`[GOP] Case 4: Started decode to decoding slot - all buffers full, stopping packet reading`)
|
|
}
|
|
|
|
} else {
|
|
// Case 5: All 3 buffers full - add to overflow queue instead of discarding
|
|
overflowQueue.push({
|
|
gopSize: gopSize,
|
|
compressedPtr: compressedPtr,
|
|
compressedSize: compressedSize
|
|
})
|
|
if (interactive) {
|
|
console.log(`[GOP] Case 5: Buffered GOP ${gopSize} frames to overflow queue (queue size: ${overflowQueue.length})`)
|
|
}
|
|
}
|
|
}
|
|
else if (packetType === TAV_PACKET_GOP_SYNC) {
|
|
// GOP sync packet - just skip it, frame display is time-based
|
|
const framesInGOP = seqread.readOneByte()
|
|
// Ignore - we display frames based on time accumulator, not this packet
|
|
|
|
// CRITICAL: Stop reading packets if all 3 buffers are full
|
|
// (one GOP playing + ready GOP + decoding GOP)
|
|
if (currentGopSize > 0 && readyGopData !== null && decodingGopData !== null) {
|
|
shouldReadPackets = false
|
|
if (interactive) {
|
|
console.log(`[GOP] All 3 buffers full - stopping packet reading`)
|
|
}
|
|
}
|
|
}
|
|
else if (packetType === TAV_PACKET_AUDIO_BUNDLED) {
|
|
// Bundled audio packet - entire MP2 file pre-decoded to PCM
|
|
// This removes MP2 decoding from the frame timing loop
|
|
let totalAudioSize = seqread.readInt()
|
|
|
|
if (!mp2Initialised) {
|
|
mp2Initialised = true
|
|
audio.mp2Init()
|
|
}
|
|
|
|
if (interactive) {
|
|
serial.println(`Pre-decoding ${(totalAudioSize / 1024).toFixed(1)} KB of MP2 audio...`)
|
|
}
|
|
|
|
// Allocate temporary buffer for MP2 data
|
|
let mp2Buffer = sys.malloc(totalAudioSize)
|
|
seqread.readBytes(totalAudioSize, mp2Buffer)
|
|
|
|
// Estimate PCM size: MP2 ~10:1 compression ratio, so PCM ~10x larger
|
|
// Each MP2 frame decodes to 2304 bytes PCM (1152 stereo 16-bit samples)
|
|
// Allocate generous buffer (12x MP2 size to be safe)
|
|
const estimatedPcmSize = totalAudioSize * 12
|
|
predecodedPcmBuffer = sys.malloc(estimatedPcmSize)
|
|
predecodedPcmSize = 0
|
|
predecodedPcmOffset = 0
|
|
|
|
// Decode entire MP2 file to PCM
|
|
const MP2_DECODE_CHUNK = 2304 // ~2 MP2 frames at 192kbps
|
|
let srcOffset = 0
|
|
|
|
while (srcOffset < totalAudioSize) {
|
|
let remaining = totalAudioSize - srcOffset
|
|
let chunkSize = Math.min(MP2_DECODE_CHUNK, remaining)
|
|
|
|
// Copy MP2 chunk to audio peripheral decode buffer
|
|
sys.memcpy(mp2Buffer + srcOffset, SND_BASE_ADDR - 2368, chunkSize)
|
|
|
|
// Decode to PCM (goes to SND_BASE_ADDR)
|
|
audio.mp2Decode()
|
|
|
|
// Copy decoded PCM from peripheral to our storage buffer
|
|
// Each decode produces 2304 bytes of PCM
|
|
sys.memcpy(SND_BASE_ADDR, predecodedPcmBuffer + predecodedPcmSize, 2304)
|
|
predecodedPcmSize += 2304
|
|
|
|
srcOffset += chunkSize
|
|
}
|
|
|
|
// Free MP2 buffer (no longer needed)
|
|
sys.free(mp2Buffer)
|
|
|
|
if (interactive) {
|
|
serial.println(`Pre-decoded ${(predecodedPcmSize / 1024).toFixed(1)} KB PCM (from ${(totalAudioSize / 1024).toFixed(1)} KB MP2)`)
|
|
}
|
|
|
|
}
|
|
else if (packetType === TAV_PACKET_AUDIO_MP2) {
|
|
// Legacy MP2 Audio packet (for backwards compatibility)
|
|
let audioLen = seqread.readInt()
|
|
|
|
if (!mp2Initialised) {
|
|
mp2Initialised = true
|
|
audio.mp2Init()
|
|
}
|
|
|
|
seqread.readBytes(audioLen, SND_BASE_ADDR - 2368)
|
|
audio.mp2Decode()
|
|
audio.mp2UploadDecoded(0)
|
|
|
|
}
|
|
else if (packetType === TAV_PACKET_AUDIO_NATIVE) {
|
|
// PCM length must not exceed 65536 bytes!
|
|
let zstdLen = seqread.readInt()
|
|
let zstdPtr = sys.malloc(zstdLen)
|
|
seqread.readBytes(zstdLen, zstdPtr)
|
|
// serial.println(`PCM8 audio (${zstdLen} -> ????)`)
|
|
let pcmPtr = sys.malloc(65536) //SND_BASE_ADDR - 65536
|
|
let pcmLen = gzip.decompFromTo(zstdPtr, zstdLen, pcmPtr) // <- segfaults!
|
|
if (pcmLen > 65536) throw Error(`PCM data too long -- got ${pcmLen} bytes`)
|
|
|
|
audio.putPcmDataByPtr(pcmPtr, pcmLen, 0)
|
|
|
|
audio.setSampleUploadLength(0, pcmLen)
|
|
audio.startSampleUpload(0)
|
|
sys.free(zstdPtr)
|
|
|
|
sys.free(pcmPtr)
|
|
}
|
|
else if (packetType === TAV_PACKET_SUBTITLE) {
|
|
// Subtitle packet - same format as TEV
|
|
let packetSize = seqread.readInt()
|
|
processSubtitlePacket(packetSize)
|
|
}
|
|
else if (packetType === TAV_PACKET_EXTENDED_HDR) {
|
|
// Extended header packet - metadata key-value pairs
|
|
let numPairs = seqread.readShort()
|
|
|
|
if (interactive) {
|
|
serial.println(`[EXTENDED HEADER] ${numPairs} key-value pairs:`)
|
|
}
|
|
|
|
for (let i = 0; i < numPairs; i++) {
|
|
// Read key (4 bytes)
|
|
let keyBytes = seqread.readBytes(4)
|
|
let key = ""
|
|
for (let j = 0; j < 4; j++) {
|
|
key += String.fromCharCode(sys.peek(keyBytes + j))
|
|
}
|
|
sys.free(keyBytes)
|
|
|
|
// Read value type
|
|
let valueType = seqread.readOneByte()
|
|
|
|
if (valueType === 0x04) { // Uint64
|
|
let valueLow = seqread.readInt()
|
|
let valueHigh = seqread.readInt()
|
|
// Combine into 64-bit value (JS uses double, loses precision beyond 2^53)
|
|
let value = valueHigh * 0x100000000 + (valueLow >>> 0)
|
|
|
|
if (interactive) {
|
|
if (key === "CDAT") {
|
|
// Creation date - convert to human readable
|
|
let seconds = Math.floor(value / 1000000000)
|
|
let date = new Date(seconds * 1000)
|
|
serial.println(` ${key}: ${date.toISOString()}`)
|
|
} else {
|
|
// BGNT/ENDT - show as seconds
|
|
serial.println(` ${key}: ${(value / 1000000000).toFixed(6)}s`)
|
|
}
|
|
}
|
|
} else if (valueType === 0x10) { // Bytes
|
|
let length = seqread.readShort()
|
|
let dataBytes = seqread.readBytes(length)
|
|
let dataStr = ""
|
|
for (let j = 0; j < length; j++) {
|
|
dataStr += String.fromCharCode(sys.peek(dataBytes + j))
|
|
}
|
|
sys.free(dataBytes)
|
|
|
|
if (interactive) {
|
|
serial.println(` ${key}: "${dataStr}"`)
|
|
}
|
|
} else {
|
|
if (interactive) {
|
|
serial.println(` ${key}: Unknown type 0x${valueType.toString(16)}`)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (packetType === TAV_PACKET_TIMECODE) {
|
|
// Timecode packet - time since stream start in nanoseconds
|
|
let timecodeLow = seqread.readInt()
|
|
let timecodeHigh = seqread.readInt()
|
|
let timecodeNs = timecodeHigh * 0x100000000 + (timecodeLow >>> 0)
|
|
|
|
// Optionally display timecode in interactive mode (can be verbose)
|
|
// Uncomment for debugging:
|
|
// if (interactive && frameCount % 60 === 0) {
|
|
// serial.println(`[TIMECODE] Frame ${frameCount}: ${(timecodeNs / 1000000000).toFixed(6)}s`)
|
|
// }
|
|
}
|
|
else if (packetType == 0x00) {
|
|
// Silently discard, faulty subtitle creation can cause this as 0x00 is used as an argument terminator
|
|
} else {
|
|
println(`Unknown packet type: 0x${packetType.toString(16)}`)
|
|
break
|
|
}
|
|
} // end of !paused packet read block
|
|
|
|
let t2 = sys.nanoTime()
|
|
if (!paused) {
|
|
// Only accumulate time if we have a GOP to play
|
|
// Don't accumulate during first GOP decode or we'll get fast playback
|
|
if (currentGopSize > 0) {
|
|
akku += (t2 - t1) / 1000000000.0
|
|
}
|
|
akku2 += (t2 - t1) / 1000000000.0
|
|
}
|
|
|
|
// STATE MACHINE: Explicit GOP playback with spin-waits
|
|
|
|
// Step 1: If first GOP decode in progress AND no GOP is currently playing, wait for it
|
|
if (asyncDecodeInProgress && currentGopSize === 0) {
|
|
if (!graphics.tavDecodeGopIsComplete()) {
|
|
// Spin-wait for first GOP decode (nothing else to do)
|
|
sys.sleep(1)
|
|
}
|
|
else {
|
|
// First GOP decode completed, start playback
|
|
const [r1, r2] = graphics.tavDecodeGopGetResult()
|
|
decodeTime = (sys.nanoTime() - asyncDecodeStartTime) / 1000000.0
|
|
decoderDbgInfo = r2
|
|
|
|
currentGopSize = asyncDecodeGopSize
|
|
currentGopFrameIndex = 0
|
|
currentGopBufferSlot = asyncDecodeSlot
|
|
asyncDecodeInProgress = false
|
|
|
|
// Set first frame time to NOW
|
|
nextFrameTime = sys.nanoTime()
|
|
|
|
// Resume packet reading only if not all 3 buffers are full
|
|
// (might have buffered GOP 2 and 3 during GOP 1 decode)
|
|
if (!(currentGopSize > 0 && readyGopData !== null && decodingGopData !== null)) {
|
|
shouldReadPackets = true
|
|
if (interactive) {
|
|
console.log(`[GOP] First GOP ready - resuming packet reading (ready=${readyGopData !== null}, decoding=${decodingGopData !== null})`)
|
|
}
|
|
} else {
|
|
if (interactive) {
|
|
console.log(`[GOP] First GOP ready - all 3 buffers full, keeping packet reading paused`)
|
|
}
|
|
}
|
|
|
|
// if (interactive) {
|
|
// console.log(`[GOP] First GOP ready (slot ${asyncDecodeSlot}, ${asyncDecodeGopSize} frames) in ${decodeTime.toFixed(1)}ms - starting playback`)
|
|
// }
|
|
|
|
// Free compressed data
|
|
sys.free(asyncDecodePtr)
|
|
asyncDecodePtr = 0
|
|
asyncDecodeGopSize = 0
|
|
|
|
// Start decode of buffered ready GOP if it exists
|
|
if (readyGopData !== null && readyGopData.needsDecode) {
|
|
const framesRemaining = currentGopSize - currentGopFrameIndex
|
|
const timeRemaining = framesRemaining * FRAME_TIME * 1000.0
|
|
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
readyGopData.compressedPtr, readyGopData.compressedSize, readyGopData.gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
readyGopData.slot * SLOT_SIZE
|
|
)
|
|
|
|
// CRITICAL FIX: Set async decode tracking variables so decode is properly tracked
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = readyGopData.slot
|
|
asyncDecodeGopSize = readyGopData.gopSize
|
|
asyncDecodePtr = readyGopData.compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
readyGopData.needsDecode = false
|
|
readyGopData.startTime = asyncDecodeStartTime
|
|
readyGopData.timeRemaining = timeRemaining
|
|
|
|
if (interactive) {
|
|
console.log(`[GOP] Started decode of buffered GOP ${readyGopData.gopSize} frames (slot ${readyGopData.slot})`)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fire audio on first frame
|
|
if (!audioFired) {
|
|
audio.play(0)
|
|
audioFired = true
|
|
}
|
|
|
|
// Step 2a: Display I-frame/P-frame with proper frame timing
|
|
if (!paused && iframeReady && currentGopSize === 0) {
|
|
// Initialize timing on first I-frame
|
|
if (nextFrameTime === 0) {
|
|
nextFrameTime = sys.nanoTime()
|
|
}
|
|
|
|
// Spin-wait for next frame time
|
|
while (sys.nanoTime() < nextFrameTime && !paused) {
|
|
sys.sleep(1)
|
|
}
|
|
|
|
if (!paused) {
|
|
let uploadStart = sys.nanoTime()
|
|
graphics.uploadRGBToFramebuffer(CURRENT_RGB_ADDR, header.width, header.height, trueFrameCount, false)
|
|
uploadTime = (sys.nanoTime() - uploadStart) / 1000000.0
|
|
|
|
// Apply bias lighting
|
|
let biasStart = sys.nanoTime()
|
|
setBiasLighting()
|
|
biasTime = (sys.nanoTime() - biasStart) / 1000000.0
|
|
|
|
// Fire audio on first frame
|
|
if (!audioFired) {
|
|
audio.play(0)
|
|
audioFired = true
|
|
}
|
|
|
|
frameCount++
|
|
trueFrameCount++
|
|
iframeReady = false
|
|
|
|
// Swap ping-pong buffers for next frame
|
|
let temp = CURRENT_RGB_ADDR
|
|
CURRENT_RGB_ADDR = PREV_RGB_ADDR
|
|
PREV_RGB_ADDR = temp
|
|
|
|
// Schedule next frame
|
|
nextFrameTime += (frametime) // frametime is in nanoseconds from header
|
|
|
|
// Log performance data every 60 frames
|
|
if (frameCount % 60 == 0) {
|
|
console.log(`Frame ${frameCount}: Upload=${uploadTime.toFixed(1)}ms, Bias=${biasTime.toFixed(1)}ms`)
|
|
}
|
|
}
|
|
}
|
|
|
|
// Step 2 & 3: Display current GOP frame if it's time
|
|
if (!paused && currentGopSize > 0 && currentGopFrameIndex < currentGopSize) {
|
|
// Spin-wait for next frame time
|
|
while (sys.nanoTime() < nextFrameTime && !paused) {
|
|
sys.sleep(1)
|
|
}
|
|
|
|
if (!paused) {
|
|
const bufferSlot = currentGopBufferSlot
|
|
const bufferOffset = bufferSlot * SLOT_SIZE
|
|
|
|
let uploadStart = sys.nanoTime()
|
|
graphics.uploadVideoBufferFrameToFramebuffer(currentGopFrameIndex, header.width, header.height, trueFrameCount, bufferOffset)
|
|
uploadTime = (sys.nanoTime() - uploadStart) / 1000000.0
|
|
|
|
if (interactive && currentGopFrameIndex === 0) {
|
|
console.log(`[GOP] Playing GOP: ${currentGopSize} frames from slot ${currentGopBufferSlot}`)
|
|
}
|
|
|
|
// Apply bias lighting
|
|
let biasStart = sys.nanoTime()
|
|
if (currentGopFrameIndex === 0 || currentGopFrameIndex === currentGopSize - 1) {
|
|
setBiasLighting()
|
|
}
|
|
biasTime = (sys.nanoTime() - biasStart) / 1000000.0
|
|
|
|
// Fire audio on first frame
|
|
if (!audioFired) {
|
|
audio.play(0)
|
|
audioFired = true
|
|
}
|
|
|
|
currentGopFrameIndex++
|
|
frameCount++
|
|
trueFrameCount++
|
|
|
|
// Upload pre-decoded PCM audio if available (keeps audio queue fed)
|
|
if (predecodedPcmBuffer !== null && predecodedPcmOffset < predecodedPcmSize) {
|
|
let remaining = predecodedPcmSize - predecodedPcmOffset
|
|
let uploadSize = Math.min(PCM_UPLOAD_CHUNK, remaining)
|
|
|
|
// Copy PCM chunk to audio peripheral memory
|
|
sys.memcpy(predecodedPcmBuffer + predecodedPcmOffset, SND_BASE_ADDR, uploadSize)
|
|
|
|
// Set upload parameters and trigger upload to queue
|
|
audio.setSampleUploadLength(0, uploadSize)
|
|
audio.startSampleUpload(0)
|
|
|
|
predecodedPcmOffset += uploadSize
|
|
}
|
|
|
|
// Start decode of buffered decoding GOP if ready GOP decode is complete
|
|
if (decodingGopData !== null && decodingGopData.needsDecode && graphics.tavDecodeGopIsComplete()) {
|
|
const framesRemaining = currentGopSize - currentGopFrameIndex
|
|
const timeRemaining = framesRemaining * FRAME_TIME * 1000.0
|
|
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
decodingGopData.compressedPtr, decodingGopData.compressedSize, decodingGopData.gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
decodingGopData.slot * SLOT_SIZE
|
|
)
|
|
|
|
// CRITICAL FIX: Set async decode tracking variables so decode is properly tracked
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = decodingGopData.slot
|
|
asyncDecodeGopSize = decodingGopData.gopSize
|
|
asyncDecodePtr = decodingGopData.compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
decodingGopData.needsDecode = false
|
|
decodingGopData.startTime = asyncDecodeStartTime
|
|
decodingGopData.timeRemaining = timeRemaining
|
|
|
|
if (interactive) {
|
|
console.log(`[GOP] Started decode of buffered GOP ${decodingGopData.gopSize} frames from decoding slot (slot ${decodingGopData.slot})`)
|
|
}
|
|
}
|
|
|
|
// Schedule next frame
|
|
nextFrameTime += (frametime) // frametime is in nanoseconds from header
|
|
}
|
|
}
|
|
|
|
// Step 4-7: GOP finished? Transition to ready GOP (triple-buffering)
|
|
if (!paused && currentGopSize > 0 && currentGopFrameIndex >= currentGopSize) {
|
|
if (interactive) {
|
|
console.log(`[GOP] GOP finished: played ${currentGopFrameIndex}/${currentGopSize} frames from slot ${currentGopBufferSlot}`)
|
|
}
|
|
if (readyGopData !== null) {
|
|
// If ready GOP still needs decode, start it now (defensive - should already be started)
|
|
if (readyGopData.needsDecode) {
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
readyGopData.compressedPtr, readyGopData.compressedSize, readyGopData.gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
readyGopData.slot * SLOT_SIZE
|
|
)
|
|
readyGopData.needsDecode = false
|
|
readyGopData.startTime = sys.nanoTime()
|
|
}
|
|
|
|
// Ready GOP exists - wait for it to finish decoding if still in progress
|
|
while (!graphics.tavDecodeGopIsComplete() && !paused) {
|
|
sys.sleep(1)
|
|
}
|
|
|
|
if (!paused) {
|
|
const [r1, r2] = graphics.tavDecodeGopGetResult()
|
|
decodeTime = (sys.nanoTime() - readyGopData.startTime) / 1000000.0
|
|
|
|
// Free compressed data
|
|
sys.free(readyGopData.compressedPtr)
|
|
|
|
// Transition to ready GOP
|
|
currentGopBufferSlot = readyGopData.slot
|
|
currentGopSize = readyGopData.gopSize
|
|
currentGopFrameIndex = 0
|
|
|
|
// Promote decoding GOP to ready GOP
|
|
readyGopData = decodingGopData
|
|
decodingGopData = null
|
|
|
|
// CRITICAL: Only clear async decode tracking if NO decode is in progress
|
|
// (the promoted readyGop might be decoding from Case 4)
|
|
if (graphics.tavDecodeGopIsComplete()) {
|
|
asyncDecodeInProgress = false
|
|
asyncDecodePtr = 0
|
|
asyncDecodeGopSize = 0
|
|
}
|
|
|
|
// Resume packet reading now that one buffer is free (decoding slot available)
|
|
shouldReadPackets = true
|
|
if (interactive) {
|
|
console.log(`[GOP] Transition complete - resuming packet reading (asyncInProgress=${asyncDecodeInProgress})`)
|
|
}
|
|
|
|
// Process overflow queue if it has GOPs waiting
|
|
if (overflowQueue.length > 0 && !asyncDecodeInProgress && graphics.tavDecodeGopIsComplete()) {
|
|
const overflow = overflowQueue.shift()
|
|
|
|
// Determine which slot to decode to
|
|
let targetSlot
|
|
if (readyGopData === null) {
|
|
// Decode to ready slot
|
|
targetSlot = (currentGopBufferSlot + 1) % BUFFER_SLOTS
|
|
} else if (decodingGopData === null) {
|
|
// Decode to decoding slot
|
|
targetSlot = (currentGopBufferSlot + 2) % BUFFER_SLOTS
|
|
} else {
|
|
// This shouldn't happen - put it back in queue
|
|
overflowQueue.unshift(overflow)
|
|
if (interactive) {
|
|
console.log(`[GOP] Overflow queue: no slots available, keeping in queue`)
|
|
}
|
|
targetSlot = -1 // Skip decode
|
|
}
|
|
|
|
// Only proceed if we got a valid slot
|
|
if (targetSlot >= 0) {
|
|
const targetOffset = targetSlot * SLOT_SIZE
|
|
const framesRemaining = currentGopSize - currentGopFrameIndex
|
|
const timeRemaining = framesRemaining * FRAME_TIME * 1000.0
|
|
|
|
// Start async decode
|
|
graphics.tavDecodeGopToVideoBufferAsync(
|
|
overflow.compressedPtr, overflow.compressedSize, overflow.gopSize,
|
|
header.width, header.height,
|
|
header.qualityLevel,
|
|
QLUT[header.qualityY], QLUT[header.qualityCo], QLUT[header.qualityCg],
|
|
header.channelLayout,
|
|
header.waveletFilter, header.decompLevels, 2,
|
|
header.entropyCoder,
|
|
targetOffset
|
|
)
|
|
|
|
asyncDecodeInProgress = true
|
|
asyncDecodeSlot = targetSlot
|
|
asyncDecodeGopSize = overflow.gopSize
|
|
asyncDecodePtr = overflow.compressedPtr
|
|
asyncDecodeStartTime = sys.nanoTime()
|
|
|
|
if (readyGopData === null) {
|
|
readyGopData = {
|
|
gopSize: overflow.gopSize,
|
|
slot: targetSlot,
|
|
compressedPtr: overflow.compressedPtr,
|
|
startTime: asyncDecodeStartTime,
|
|
timeRemaining: timeRemaining
|
|
}
|
|
if (interactive) {
|
|
console.log(`[GOP] Overflow: Started decode of queued GOP ${overflow.gopSize} frames to ready slot ${targetSlot} (${overflowQueue.length} left in queue)`)
|
|
}
|
|
} else {
|
|
decodingGopData = {
|
|
gopSize: overflow.gopSize,
|
|
slot: targetSlot,
|
|
compressedPtr: overflow.compressedPtr,
|
|
startTime: asyncDecodeStartTime,
|
|
timeRemaining: timeRemaining
|
|
}
|
|
if (interactive) {
|
|
console.log(`[GOP] Overflow: Started decode of queued GOP ${overflow.gopSize} frames to decoding slot ${targetSlot} (${overflowQueue.length} left in queue)`)
|
|
}
|
|
}
|
|
} // End if (targetSlot >= 0)
|
|
}
|
|
}
|
|
} else {
|
|
// No ready GOP available - hiccup (shouldn't happen with triple-buffering)
|
|
if (interactive) {
|
|
console.log(`[GOP] ✗ HICCUP - ready GOP NOT READY! Playback paused.`)
|
|
}
|
|
currentGopSize = 0
|
|
currentGopFrameIndex = 0
|
|
|
|
// Resume packet reading to get next GOP
|
|
shouldReadPackets = true
|
|
}
|
|
}
|
|
|
|
// Simple progress display
|
|
if (interactive) {
|
|
notifHideTimer += (t2 - t1)
|
|
if (!notifHidden && notifHideTimer > (NOTIF_SHOWUPTIME + FRAME_TIME)) {
|
|
// clearing function here
|
|
notifHidden = true
|
|
}
|
|
|
|
con.color_pair(253, 0)
|
|
let guiStatus = {
|
|
fps: header.fps,
|
|
videoRate: getVideoRate(),
|
|
frameCount: frameCount,
|
|
totalFrames: header.totalFrames,
|
|
frameMode: decoderDbgInfo.frameMode,
|
|
qY: decoderDbgInfo.qY,
|
|
qCo: decoderDbgInfo.qCo,
|
|
qCg: decoderDbgInfo.qCg,
|
|
akku: akku2,
|
|
fileName: (cueElements.length > 0) ? `${cueElements[currentCueIndex].name}` : fullFilePathStr,
|
|
fileOrd: (cueElements.length > 0) ? currentCueIndex+1 : currentFileIndex,
|
|
resolution: `${header.width}x${header.height}${(isInterlaced) ? 'i' : ''}`,
|
|
colourSpace: header.version % 2 == 0 ? "ICtCp" : "YCoCg",
|
|
currentStatus: paused ? 2 : 1 // 2 = paused, 1 = playing
|
|
}
|
|
gui.printBottomBar(guiStatus)
|
|
gui.printTopBar(guiStatus, 1)
|
|
}
|
|
|
|
|
|
debugPrintAkku += (t2 - t1)
|
|
if (debugPrintAkku > 5000000000) {
|
|
debugPrintAkku -= 5000000000
|
|
serial.println(`[PLAYTAV] decoding time = ${(decodeTime).toFixed(2)} ms`)
|
|
}
|
|
|
|
// Small sleep to prevent 100% CPU and control loop rate
|
|
// Allows continuous packet reading while maintaining proper frame timing
|
|
sys.sleep(1)
|
|
|
|
t1 = t2
|
|
}
|
|
}
|
|
catch (e) {
|
|
serial.printerr(`TAV decode error: ${e}`)
|
|
errorlevel = 1
|
|
}
|
|
finally {
|
|
// Cleanup
|
|
sys.free(RGB_BUFFER_A)
|
|
sys.free(RGB_BUFFER_B)
|
|
|
|
// Free field buffers if interlaced
|
|
if (isInterlaced) {
|
|
sys.free(CURR_FIELD_BUFFER)
|
|
sys.free(PREV_FIELD_BUFFER)
|
|
sys.free(NEXT_FIELD_BUFFER)
|
|
}
|
|
|
|
// Free pre-decoded PCM buffer if present
|
|
if (predecodedPcmBuffer !== null) {
|
|
sys.free(predecodedPcmBuffer)
|
|
}
|
|
|
|
// Free any remaining overflow queue GOPs
|
|
while (overflowQueue.length > 0) {
|
|
const overflow = overflowQueue.shift()
|
|
sys.free(overflow.compressedPtr)
|
|
}
|
|
|
|
con.curs_set(1)
|
|
con.clear()
|
|
|
|
if (errorlevel === 0) {
|
|
if (currentFileIndex > 1) {
|
|
console.log(`Playback completed: ${currentFileIndex} files processed`)
|
|
} else {
|
|
console.log(`Playback completed: ${frameCount} frames`)
|
|
}
|
|
} else {
|
|
console.log(`Playback failed with error ${errorlevel}`)
|
|
}
|
|
|
|
// reset font rom
|
|
sys.poke(-1299460, 20)
|
|
sys.poke(-1299460, 21)
|
|
|
|
audio.stop(0)
|
|
audio.purgeQueue(0)
|
|
}
|
|
|
|
graphics.setPalette(0, 0, 0, 0, 0)
|
|
con.move(cy, cx) // restore cursor
|
|
return errorlevel |