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base: brooke:f7df0999d713abd417f68b53f24ba4ae2aea8bc1
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brooke:main
brooke:vocoder
..
compare: brooke:a4196851217ead3f94e0c1ef00142a51b2ebbf3d
Branches Tags
brooke:vocoder
brooke:main

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f7df0999d7 ... a419685121

12 changed files with 24 additions and 422 deletions
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5
.gitignore vendored
View file

@ -13,8 +13,3 @@ chickens.wav
chickens.s
dubstep.wav
dubstep.wav.*
video-rickroll/frames
video-doom/frames
video-cat/frames
video-bulk/frames
video/frames

48
Makefile
View file

@ -1,44 +1,21 @@
all : rickroll.xex
all : sample0.xex \
sample1.xex sample2.xex sample3.xex sample4.xex sample5.xex sample6.xex \
fruit.xex mapclock.xex sailboat.xex sunset.xex train404.xex \
potato.xex selfie.xex kitty.xex meme.xex
# sample5.s from sample5.jpg
# reminder: $< is input
# $@ is output
%.s : %.jpg dither-image.js gif.sh mp4.sh
%.s : %.jpg dither-image.js
node dither-image.js $< $@
chickens.s : chickens.wav pack-wav.js
node pack-wav.js $< $@
dubstep.wav.s : dubstep.wav pack-wav.js
node pack-wav.js $< $@
dubstep.wav : Dubstep_Loop_by_WinnieTheMoog.ogg
ffmpeg -i "Dubstep_Loop_by_WinnieTheMoog.ogg" \
-t 2.0 \
-acodec pcm_u8 \
-ac 1 \
-ar 15704 \
-y $@
never-gonna-give-you-up.wav.s : never-gonna-give-you-up.wav pack-wav.js
node pack-wav.js $< $@
never-gonna-give-you-up.wav : never-gonna-give-you-up.mp4
ffmpeg -i "never-gonna-give-you-up.mp4" \
-vn \
-t 2.0 \
-acodec pcm_u8 \
-ac 1 \
-ar 15704 \
-y $@
%.o : %.s
ca65 -v -t atari -o $@ $<
%.xex : %.o dither4.o never-gonna-give-you-up.wav.o atari-asm-xex.cfg
ld65 -v -C ./atari-asm-xex.cfg -o $@ dither4.o never-gonna-give-you-up.wav.o $<
%.xex : %.o dither4.o atari-asm-xex.cfg
ld65 -v -C ./atari-asm-xex.cfg -o $@ dither4.o $<
clean :
rm -f *.o
@ -47,14 +24,3 @@ clean :
rm -f fruit.s mapclock.s sailboat.s sunset.s train404.s
rm -f potato.s selfie.s kitty.s meme.s
rm -f *.xex
rm -f chickens.s
rm -f chickens.o
rm -f dubstep.wav
rm -f dubstep.wav.[so]
rm -f never-gonna-give-you-up.wav
rm -f never-gonna-give-you-up.wav.[so]
test : all
atari800 rickroll.xex
.dummy: clean test sample0.s sample1.s sample2.s sample3.s sample4.s sample5.s sample6.s chickens.s rickroll.s

2
dither-image.js
View file

@ -1067,7 +1067,7 @@ async function saveImage(width, height, lines, dest) {
resolve(image);
});
});
await image.resize(Math.round(width2 * 2), height * 2);
await image.resize(Math.round(width2 * 2 / 1.2), height * 2);
await image.writeAsync(dest);
}

98
dither4.s
View file

@ -26,7 +26,6 @@ sample_ptrl = $84
sample_ptrh = $85
sample_ptr = sample_ptrl
scanline = $86
audiotemp = $87
frame_counter = $89
;height = 160
@ -40,9 +39,6 @@ scanline_max = (lines_per_frame - scanline_offset) / 2
.data
.import audio_samples
.import audio_samples_end
.import frame1_top
.import frame1_bottom
.import frame1_palette1_even
@ -53,41 +49,11 @@ scanline_max = (lines_per_frame - scanline_offset) / 2
.import frame1_palette3_odd
.import displaylist
audio_high_byte:
.scope
.macro byteseq val
.repeat 16
.byte val | $10
.endrep
.endmacro
byteseq $0
byteseq $1
byteseq $2
byteseq $3
byteseq $4
byteseq $5
byteseq $7
byteseq $8
byteseq $9
byteseq $a
byteseq $b
byteseq $c
byteseq $d
byteseq $e
byteseq $f
.endscope
.code
.export start
.proc start
; Set up the audio sample buffer
lda #.lobyte(audio_samples)
sta sample_ptrl
lda #.hibyte(audio_samples)
sta sample_ptrh
; Disable display DMA
lda #$00
sta DMACTL
@ -132,6 +98,8 @@ wait_loop:
.macro inner_scanline frame_offset, line_offset
; Y should be VCOUNT at entry
; it'll fire on unused lines, but harmlessly
;ldy scanline ; 3 cyc
;inc scanline ; 5 cyc
; 23-26 cycles before break
; Leisurely memory fetches
@ -141,7 +109,6 @@ wait_loop:
lda frame1_palette3_even + frame_offset + line_offset - scanline_offset / 2,y ; 4/5
tay ; 2
pla ; 3
; Wait for horizontal blank
sta WSYNC ; 4
@ -152,59 +119,6 @@ wait_loop:
sty COLPF2 ; 4
.endmacro
.macro audio_play_raw
;ldy VCOUNT ; set on entry
lda (sample_ptr),y ; 5/6 cyc
sta AUDC1 ; 4 cyc
.endmacro
.macro audio_prep
; Y is VCOUNT at entry
lda (sample_ptr),y ; 5/6 cyc
sta audiotemp ; 3 cyc
.endmacro
; call with A pre-loaded to audiotemp
.macro audio_play_lo
;lda audiotemp ; 3 cyc
and #$0f ; 2 cyc
ora #$10 ; 2 cyc
sta AUDC1 ; 4 cyc
.endmacro
; clobbers Y
.macro audio_play_hi ; 12 cycles
ldy audiotemp ; 3 cyc
lda audio_high_byte,y ; 5 cyc
sta AUDC1 ; 4 cyc
.endmacro
.macro audio_inc
; 22 cycles
lda sample_ptrl ; 3 cyc
clc ; 2 cyc
adc #131 ; 2 cyc
sta sample_ptrl ; 3 cyc
lda sample_ptrh ; 3 cyc
adc #0 ; 2 cyc
sta sample_ptrh ; 3 cyc
cmp #.hibyte(audio_samples_end) ; 2 cyc
bmi audio_cont ; 2 cyc
sta WSYNC
; 10 cycles, optional
lda #.lobyte(audio_samples) ; 2
sta sample_ptrl ; 3
lda #.hibyte(audio_samples) ; 2
sta sample_ptrh ; 3
sta WSYNC
ldy VCOUNT ; 4 cycles
audio_cont:
.endmacro
.macro run_frame frame_offset
.scope
; each scanline is 228 color clocks
@ -215,21 +129,13 @@ wait_loop:
sty scanline ; 3 cycles
inner_scanline frame_offset, 0 ; 23-26 cycles before break, 12 cycles after
ldy scanline ; 3 cycles
audio_prep
audio_play_lo
ldy scanline ; 3 cycles
inner_scanline frame_offset, 128 ; 23-26 cycles before break, 12 cycles after
audio_play_hi
; pair cleanup: 6 cycles
ldy VCOUNT ; 4 cycles
bne each_scanline_pair ; 2 cycles
audio_inc ; 22-32 cycles
; frame cleanup: 11 cycles
lda frame_counter ; 3 cycles
eor #1 ; 2 cycles

BIN
never-gonna-give-you-up.mp4
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Binary file not shown.

31
pack-wav.js
View file

@ -14,44 +14,31 @@ function byte2byte(arr) {
return lines.join('\n');
}
class Dither {
constructor() {
this.err = 0;
}
to4bit(val8) {
let val = (val8 / 255) - this.err;
if (val < 0) {
val = 0;
}
if (val > 1) {
val = 1;
}
let val4 = Math.round(val * 15);
let dithered = (val4 / 15);
this.err = (dithered - val);
return val4;
function to4bit(val8) {
let val = (val8 + 7) >> 4;
if (val > 15) {
return 15;
}
return val;
}
function pack(audio) {
let packed = [];
let dither = new Dither();
/*
for (let i = 0; i < audio.length; i += 2) {
// little-endian 4-bit samples
let low = dither.to4bit(audio[i]);
let high = dither.to4bit(audio[i + 1]);
let low = to4bit(audio[i]);
let high = to4bit(audio[i + 1]);
let byte = low | (high << 4);
packed.push(byte);
}
/*
*/
// raw push bytes
for (let i = 0; i < audio.length; i += 2) {
let val = to4bit(audio[i]);
let byte = val | 0x10;
packed.push(byte);
}
*/
return packed;
}

217
package-lock.json generated
View file

@ -6,7 +6,6 @@
"": {
"dependencies": {
"jimp": "^0.16.2",
"wav": "^1.0.2",
"wavefile": "^11.0.0"
},
"devDependencies": {
@ -709,22 +708,6 @@
"ieee754": "^1.1.13"
}
},
"node_modules/buffer-alloc": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
"integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
"license": "MIT",
"dependencies": {
"buffer-alloc-unsafe": "^1.1.0",
"buffer-fill": "^1.0.0"
}
},
"node_modules/buffer-alloc-unsafe": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
"integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==",
"license": "MIT"
},
"node_modules/buffer-equal": {
"version": "0.0.1",
"resolved": "https://registry.npmjs.org/buffer-equal/-/buffer-equal-0.0.1.tgz",
@ -733,18 +716,6 @@
"node": ">=0.4.0"
}
},
"node_modules/buffer-fill": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
"integrity": "sha512-T7zexNBwiiaCOGDg9xNX9PBmjrubblRkENuptryuI64URkXDFum9il/JGL8Lm8wYfAXpredVXXZz7eMHilimiQ==",
"license": "MIT"
},
"node_modules/buffer-from": {
"version": "1.1.2",
"resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
"integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ==",
"license": "MIT"
},
"node_modules/callsites": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
@ -794,12 +765,6 @@
"integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
"dev": true
},
"node_modules/core-util-is": {
"version": "1.0.3",
"resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
"integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==",
"license": "MIT"
},
"node_modules/cross-spawn": {
"version": "7.0.3",
"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@ -1251,7 +1216,8 @@
"node_modules/inherits": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
"dev": true
},
"node_modules/is-extglob": {
"version": "2.1.1",
@ -1288,12 +1254,6 @@
"node": ">=8"
}
},
"node_modules/isarray": {
"version": "0.0.1",
"resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
"integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ==",
"license": "MIT"
},
"node_modules/isexe": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@ -1661,18 +1621,6 @@
}
]
},
"node_modules/readable-stream": {
"version": "1.1.14",
"resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
"integrity": "sha512-+MeVjFf4L44XUkhM1eYbD8fyEsxcV81pqMSR5gblfcLCHfZvbrqy4/qYHE+/R5HoBUT11WV5O08Cr1n3YXkWVQ==",
"license": "MIT",
"dependencies": {
"core-util-is": "~1.0.0",
"inherits": "~2.0.1",
"isarray": "0.0.1",
"string_decoder": "~0.10.x"
}
},
"node_modules/regenerator-runtime": {
"version": "0.13.11",
"resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
@ -1761,36 +1709,6 @@
"node": ">=8"
}
},
"node_modules/stream-parser": {
"version": "0.3.1",
"resolved": "https://registry.npmjs.org/stream-parser/-/stream-parser-0.3.1.tgz",
"integrity": "sha512-bJ/HgKq41nlKvlhccD5kaCr/P+Hu0wPNKPJOH7en+YrJu/9EgqUF+88w5Jb6KNcjOFMhfX4B2asfeAtIGuHObQ==",
"license": "MIT",
"dependencies": {
"debug": "2"
}
},
"node_modules/stream-parser/node_modules/debug": {
"version": "2.6.9",
"resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
"integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
"license": "MIT",
"dependencies": {
"ms": "2.0.0"
}
},
"node_modules/stream-parser/node_modules/ms": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
"integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
"license": "MIT"
},
"node_modules/string_decoder": {
"version": "0.10.31",
"resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
"integrity": "sha512-ev2QzSzWPYmy9GuqfIVildA4OdcGLeFZQrq5ys6RtiuF+RQQiZWr8TZNyAcuVXyQRYfEO+MsoB/1BuQVhOJuoQ==",
"license": "MIT"
},
"node_modules/strip-ansi": {
"version": "6.0.1",
"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
@ -1887,34 +1805,6 @@
"pako": "^1.0.5"
}
},
"node_modules/wav": {
"version": "1.0.2",
"resolved": "https://registry.npmjs.org/wav/-/wav-1.0.2.tgz",
"integrity": "sha512-viHtz3cDd/Tcr/HbNqzQCofKdF6kWUymH9LGDdskfWFoIy/HJ+RTihgjEcHfnsy1PO4e9B+y4HwgTwMrByquhg==",
"license": "MIT",
"dependencies": {
"buffer-alloc": "^1.1.0",
"buffer-from": "^1.0.0",
"debug": "^2.2.0",
"readable-stream": "^1.1.14",
"stream-parser": "^0.3.1"
}
},
"node_modules/wav/node_modules/debug": {
"version": "2.6.9",
"resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
"integrity": "sha512-bC7ElrdJaJnPbAP+1EotYvqZsb3ecl5wi6Bfi6BJTUcNowp6cvspg0jXznRTKDjm/E7AdgFBVeAPVMNcKGsHMA==",
"license": "MIT",
"dependencies": {
"ms": "2.0.0"
}
},
"node_modules/wav/node_modules/ms": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
"integrity": "sha512-Tpp60P6IUJDTuOq/5Z8cdskzJujfwqfOTkrwIwj7IRISpnkJnT6SyJ4PCPnGMoFjC9ddhal5KVIYtAt97ix05A==",
"license": "MIT"
},
"node_modules/wavefile": {
"version": "11.0.0",
"resolved": "https://registry.npmjs.org/wavefile/-/wavefile-11.0.0.tgz",
@ -2521,35 +2411,11 @@
"ieee754": "^1.1.13"
}
},
"buffer-alloc": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/buffer-alloc/-/buffer-alloc-1.2.0.tgz",
"integrity": "sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==",
"requires": {
"buffer-alloc-unsafe": "^1.1.0",
"buffer-fill": "^1.0.0"
}
},
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"version": "1.1.0",
"resolved": "https://registry.npmjs.org/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz",
"integrity": "sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg=="
},
"buffer-equal": {
"version": "0.0.1",
"resolved": "https://registry.npmjs.org/buffer-equal/-/buffer-equal-0.0.1.tgz",
"integrity": "sha512-RgSV6InVQ9ODPdLWJ5UAqBqJBOg370Nz6ZQtRzpt6nUjc8v0St97uJ4PYC6NztqIScrAXafKM3mZPMygSe1ggA=="
},
"buffer-fill": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/buffer-fill/-/buffer-fill-1.0.0.tgz",
"integrity": "sha512-T7zexNBwiiaCOGDg9xNX9PBmjrubblRkENuptryuI64URkXDFum9il/JGL8Lm8wYfAXpredVXXZz7eMHilimiQ=="
},
"buffer-from": {
"version": "1.1.2",
"resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.2.tgz",
"integrity": "sha512-E+XQCRwSbaaiChtv6k6Dwgc+bx+Bs6vuKJHHl5kox/BaKbhiXzqQOwK4cO22yElGp2OCmjwVhT3HmxgyPGnJfQ=="
},
"callsites": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/callsites/-/callsites-3.1.0.tgz",
@ -2587,11 +2453,6 @@
"integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==",
"dev": true
},
"core-util-is": {
"version": "1.0.3",
"resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz",
"integrity": "sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ=="
},
"cross-spawn": {
"version": "7.0.3",
"resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.3.tgz",
@ -2931,7 +2792,8 @@
"inherits": {
"version": "2.0.4",
"resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
"integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
"dev": true
},
"is-extglob": {
"version": "2.1.1",
@ -2959,11 +2821,6 @@
"integrity": "sha512-Fd4gABb+ycGAmKou8eMftCupSir5lRxqf4aD/vd0cD2qc4HL07OjCeuHMr8Ro4CoMaeCKDB0/ECBOVWjTwUvPQ==",
"dev": true
},
"isarray": {
"version": "0.0.1",
"resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
"integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ=="
},
"isexe": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/isexe/-/isexe-2.0.0.tgz",
@ -3244,17 +3101,6 @@
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"dev": true
},
"readable-stream": {
"version": "1.1.14",
"resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
"integrity": "sha512-+MeVjFf4L44XUkhM1eYbD8fyEsxcV81pqMSR5gblfcLCHfZvbrqy4/qYHE+/R5HoBUT11WV5O08Cr1n3YXkWVQ==",
"requires": {
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"inherits": "~2.0.1",
"isarray": "0.0.1",
"string_decoder": "~0.10.x"
}
},
"regenerator-runtime": {
"version": "0.13.11",
"resolved": "https://registry.npmjs.org/regenerator-runtime/-/regenerator-runtime-0.13.11.tgz",
@ -3310,34 +3156,6 @@
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},
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},
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"resolved": "https://registry.npmjs.org/debug/-/debug-2.6.9.tgz",
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"ms": "2.0.0"
}
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"resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
@ -3410,33 +3228,6 @@
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1
package.json
View file

@ -2,7 +2,6 @@
"type": "module",
"dependencies": {
"jimp": "^0.16.2",
"wav": "^1.0.2",
"wavefile": "^11.0.0"
},
"devDependencies": {

BIN
rickroll.jpg
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Binary file not shown.
Side by side

Before

Width:  |  Height:  |  Size: 231 KiB

10
video-rickroll/combine.sh
View file

@ -1,10 +0,0 @@
ffmpeg \
-r 60000/1001 \
-i 'frames/dither-%05d.png' \
-i 'rickroll-audio.wav' \
-ac 2 \
-ar 48000 \
-vf 'scale=534x384,setsar=1' \
-pix_fmt yuv420p \
-movflags +faststart \
-y rickroll-dither.mp4

17
video-rickroll/extract.sh
View file

@ -1,17 +0,0 @@
set -a
mkdir -p frames
ffmpeg \
-i rickroll.mp4 \
-vf 'scale=320:230,framerate=60000/1001' \
-an \
-y 'frames/rickroll-%05d.png'
ffmpeg \
-i rickroll.mp4 \
-vn \
-ac 1 \
-ar 15734 \
-acodec pcm_u8 \
-y 'rickroll-audio.wav'

15
video-rickroll/video.sh
View file

@ -1,15 +0,0 @@
set -e
for frame in frames/rickroll-[0-9][0-9][0-9][0-9][0-9].png
do
n="${frame#frames/rickroll-}"
n="${n%.png}"
out="frames/dither-${n}"
last="${n:0-1}"
node ../dither-image.js "$frame" "$out" &
if (( last == 9 ))
then
wait
fi
done
wait