Introduce adding the original audio to the pipeline, as well as intro/outro
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demux.sh
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demux.sh
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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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generate.sh
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generate.sh
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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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# 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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#
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input=/home/kuba/Downloads/odc36trim.mp3 # tutaj dajemy ścieżkę do pliku mp3 z Arkiem w jednym kanale i Kubą w drugim
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export input=~/Downloads/icdw3/stereo-processed.wav # tutaj dajemy ścieżkę do pliku mp3 z Arkiem w jednym kanale i Kubą w drugim
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framerate=25
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export input_mono=~/Downloads/icdw3/mono-processed.wav # tutaj dajemy ścieżkę do pliku mp3 z Arkiem w jednym kanale i Kubą w drugim
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timescale=25000
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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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aresample=8000 # to bez zmian
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export final_output=~/Downloads/icdw3-viz.mp4
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export framerate=25
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echo dzielimy mp3 na dwa osobne wav
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export timescale=25000
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ffmpeg -i $input -map_channel 0.0.0 /tmp/left.wav -map_channel 0.0.1 /tmp/right.wav
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echo na dwóch wątkach generujemy surowe pliki
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ffmpeg -i /tmp/left.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - > /tmp/leftraw &
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ffmpeg -i /tmp/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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aresample=8000 # to bez zmian
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mkdir -p out
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mkdir -p out
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# używa demuxer.txt żeby skleić końcowe video z dźwiękiem:
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source ./split.sh
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echo generowanie całości
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source ./demux.sh
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ffmpeg -y -f concat -safe 0 -i out/demuxer.txt -r $framerate -video_track_timescale $timescale -tune stillimage -vsync vfr -pix_fmt yuv420p out/video.mp4
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source ./merge.sh
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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 $timescale -tune stillimage out/video-and-audio.mp4
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merge.sh
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merge.sh
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processed_intro_path=$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 -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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function reencode_for_demux_compatibility() {
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ffmpeg -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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"$2"
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}
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reencode_for_demux_compatibility "$intro" "$processed_intro_path"
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if [ "$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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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 $processed_outro_path" >>out/demuxer-branding.txt
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cat out/demuxer-branding.txt
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ffmpeg -f concat -safe 0 -i out/demuxer-branding.txt -c:v copy -b:a 320k "$final_output"
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9
split.sh
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split.sh
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echo dzielimy mp3 na dwa osobne wav
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ffmpeg -i $input -map_channel 0.0.0 /tmp/left.wav -map_channel 0.0.1 /tmp/right.wav
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echo na dwóch wątkach generujemy surowe pliki
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ffmpeg -i /tmp/left.wav -ac 1 -filter:a aresample=$aresample -map 0:a -c:a pcm_u8 -f data - >/tmp/leftraw &
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ffmpeg -i /tmp/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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