Move setup from my linux machine
2
.gitignore
vendored
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@ -2,3 +2,5 @@
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*.mp4
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out/*
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!out/keepme
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*.wav
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.DS_Store
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9
demux.sh
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@ -1,9 +0,0 @@
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echo "generating the demuxers..."
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# generuje ścieżki do złożenia przez ffmpega:
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ts-node generate-demuxer.ts >out/demuxer.txt
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# używa demuxer.txt żeby skleić końcowe video z dźwiękiem:
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echo generowanie całości
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ffmpeg -y -f concat -safe 0 -i out/demuxer.txt -r $framerate -video_track_timescale $timescale -tune stillimage -pix_fmt yuv420p out/video.mp4
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# ^ daję safe 0 aby przyjmowało bezwzględne ścieżki
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0
find-loudness.ts
Normal file → Executable file
18
generate-demuxer.ts
Normal file → Executable file
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@ -2,9 +2,7 @@ import findLoudness, { SwapPoint } from "./find-loudness";
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const graph_density = 8000;
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const threshold_at_point = parseInt(
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process.env.demuxer_volume_threshold || "1"
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);
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const threshold_at_point = 2;
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const inertia_s = 0.3;
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const inertia_samples = inertia_s * graph_density;
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@ -22,8 +20,18 @@ type Mode = { left: boolean; right: boolean };
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async function run() {
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const [left_breaks, right_breaks] = await Promise.all([
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findLoudness("/tmp/leftraw", threshold_at_point, inertia_samples, "left"),
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findLoudness("/tmp/rightraw", threshold_at_point, inertia_samples, "right"),
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findLoudness(
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"/tmp/leftraw",
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threshold_at_point,
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inertia_samples,
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"left"
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),
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findLoudness(
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"/tmp/rightraw",
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threshold_at_point,
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inertia_samples,
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"right"
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),
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]);
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const merged = [...left_breaks, ...right_breaks].sort((a, b) =>
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38
generate.sh
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@ -6,18 +6,34 @@
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# W katalogu z tym skryptem musisz mieć katalog "pics", w którym są pliki "left.png", "right.png", "none.png" i "both.png"
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#
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export input=~/Downloads/icdw5/icdw5-stereo.wav # tutaj dajemy ścieżkę do pliku mp3 z Arkiem w jednym kanale i Kubą w drugim
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export input_mono=~/Downloads/icdw5/icdw5-stereo.wav # tutaj dajemy ścieżkę do pliku mp3 z Arkiem w jednym kanale i Kubą w drugim
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export intro=~/projects/midline/podcast-visualizer/out/intro.mp4 # glitch
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export outro=~/projects/midline/podcast-visualizer/out/intro.mp4 # to samo na końcu, co na początku
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export final_output=~/Downloads/icdw5-viz.mp4
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export framerate=25
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export timescale=25000
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export demuxer_volume_threshold=15 #od 0 do 128
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framerate=60
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timescale=25000
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aresample=8000 # to bez zmian
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# echo dzielimy mp3 na dwa osobne wav
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# ffmpeg -i $input -map_channel 0.0.0 /tmp/left.wav -map_channel 0.0.1 /tmp/right.wav
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ffmpeg -i ./left.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - > /tmp/leftraw &
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ffmpeg -i ./right.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - > /tmp/rightraw &
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# czekamy aż obydwa wątki się zakończą
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wait;
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echo "generating the demuxers...";
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|
||||
# generuje ścieżki do złożenia przez ffmpega:
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ts-node generate-demuxer.ts > out/demuxer.txt
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mkdir -p out
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source ./split.sh
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source ./demux.sh
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source ./merge.sh
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# używa demuxer.txt żeby skleić końcowe video z dźwiękiem:
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echo generowanie całości
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# ffmpeg -y -f concat -safe 0 -i out/demuxer.txt -r $framerate -video_track_timescale $timescale -tune stillimage -fps_mode vfr -pix_fmt yuv420p out/video.mp4
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ffmpeg -y -f concat -safe 0 -hwaccel vaapi -hwaccel_output_format vaapi -vaapi_device /dev/dri/renderD128 -i out/demuxer.txt -r $framerate -video_track_timescale $timescale -tune stillimage -pix_fmt yuv420p out/video.mp4
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# ^ daję safe 0 aby przyjmowało bezwzględne ścieżki
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# echo łączenie video z dźwiękiem:
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# ffmpeg -i out/video.mp4 -i $input -ac 1 -video_track_timescale $timescale -tune stillimage out/video-and-audio.mp4
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|
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44
merge.sh
|
@ -1,44 +0,0 @@
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processed_intro_path=$PWD/out/intro-processed.mp4
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processed_outro_path=$PWD/out/outro-processed.mp4
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echo łączenie video z dźwiękiem:
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ffmpeg -y -vaapi_device /dev/dri/renderD128 \
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-i out/video.mp4 -i $input_mono \
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-video_track_timescale $timescale \
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-tune stillimage \
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-c:a aac \
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-ac 1 \
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-strict experimental \
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-vf 'format=nv12,hwupload' \
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-c:v h264_vaapi \
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out/video-and-audio.mp4
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echo reencoding intro to enable fast concat...
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|
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function reencode_for_demux_compatibility() {
|
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ffmpeg -y -i "$1" \
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-pix_fmt yuv420p \
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-r $framerate \
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-video_track_timescale $timescale \
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-ac 1 \
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-b:a 320k \
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"$2"
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|
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}
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|
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reencode_for_demux_compatibility "$intro" "$processed_intro_path"
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|
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if [ "$intro" = "$outro" ]; then
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processed_outro_path="$processed_intro_path"
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else
|
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reencode_for_demux_compatibility "$outro" "$processed_outro_path"
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fi
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|
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echo "" >out/demuxer-branding.txt
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echo "file $processed_intro_path" >>out/demuxer-branding.txt
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echo "file video-and-audio.mp4" >>out/demuxer-branding.txt
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echo "file $processed_outro_path" >>out/demuxer-branding.txt
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|
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cat out/demuxer-branding.txt
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|
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ffmpeg -y -f concat -safe 0 -i out/demuxer-branding.txt -c:v copy -b:a 320k "$final_output"
|
0
package-lock.json
generated
Normal file → Executable file
0
package.json
Normal file → Executable file
BIN
pics/both.png
Normal file → Executable file
Before Width: | Height: | Size: 329 KiB After Width: | Height: | Size: 322 KiB |
BIN
pics/left.png
Normal file → Executable file
Before Width: | Height: | Size: 311 KiB After Width: | Height: | Size: 313 KiB |
BIN
pics/none.png
Normal file → Executable file
Before Width: | Height: | Size: 287 KiB After Width: | Height: | Size: 301 KiB |
BIN
pics/right.png
Normal file → Executable file
Before Width: | Height: | Size: 306 KiB After Width: | Height: | Size: 313 KiB |
9
split.sh
|
@ -1,9 +0,0 @@
|
|||
echo dzielimy mp3 na dwa osobne wav
|
||||
ffmpeg -y -i $input -map_channel 0.0.0 /tmp/left.wav -map_channel 0.0.1 /tmp/right.wav
|
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|
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echo na dwóch wątkach generujemy surowe pliki
|
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ffmpeg -y -i /tmp/left.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - >/tmp/leftraw &
|
||||
ffmpeg -y -i /tmp/right.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - >/tmp/rightraw &
|
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|
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# czekamy aż obydwa wątki się zakończą
|
||||
wait
|