42 lines
1.4 KiB
Bash
42 lines
1.4 KiB
Bash
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#!/bin/bash
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set -euo pipefail
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ADDR=${ADDR:-"https://relay.quic.video"}
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NAME=${NAME:-"bbb"}
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URL=${URL:-"http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4"}
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# Download the funny bunny
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wget -nv "${URL}" -O "${NAME}.mp4"
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# ffmpeg
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# -hide_banner: Hide the banner
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# -v quiet: and any other output
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# -stats: But we still want some stats on stderr
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# -stream_loop -1: Loop the broadcast an infinite number of times
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# -re: Output in real-time
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# -i "${INPUT}": Read from a file on disk
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# -vf "drawtext": Render the current time in the corner of the video
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# -an: Disable audio for now
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# -b:v 3M: Output video at 3Mbps
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# -preset ultrafast: Don't use much CPU at the cost of quality
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# -tune zerolatency: Optimize for latency at the cost of quality
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# -f mp4: Output to mp4 format
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# -movflags: Build a fMP4 file with a frame per fragment
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# - | moq-pub: Output to stdout and moq-pub to publish
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# Run ffmpeg
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ffmpeg \
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-stream_loop -1 \
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-hide_banner \
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-v quiet \
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-re \
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-i "${NAME}.mp4" \
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-vf "drawtext=fontfile=/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf:text='%{gmtime\: %H\\\\\:%M\\\\\:%S.%3N}':x=(W-tw)-24:y=24:fontsize=48:fontcolor=white:box=1:boxcolor=black@0.5" \
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-an \
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-b:v 3M \
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-preset ultrafast \
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-tune zerolatency \
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-f mp4 \
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-movflags empty_moov+frag_every_frame+separate_moof+omit_tfhd_offset \
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- | moq-pub "${ADDR}/${NAME}"
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