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Generate Multiple Renditions and LL-HLS Streams from Source MP4
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| #!/bin/bash | |
| # arg 1 is filename arg 2 is output directory | |
| FILENAME=$1 | |
| VIDEO_NAME=`echo "${FILENAME%.*}"` | |
| echo "Generating renditions for $VIDEO_NAME" | |
| [ -d "$VIDEO_NAME" ] && rm -rf "$VIDEO_NAME" | |
| mkdir $VIDEO_NAME | |
| cd $VIDEO_NAME | |
| cp ../$1 . | |
| ffmpeg -i $1 -vf scale=1280:720 -c:v libx264 -b:v 2500k -an 720p.mp4 | |
| ffmpeg -i $1 -vf scale=854:480 -c:v libx264 -b:v 1500k -an 480p.mp4 | |
| ffmpeg -i $1 -vf scale=640:360 -c:v libx264 -b:v 800k -an 360p.mp4 | |
| echo "Renditions created. Encoding..." | |
| resolutions=("720p" "480p" "360p") | |
| for resolution in "${resolutions[@]}"; do | |
| echo "generating $resolution stream" | |
| mkdir ./$resolution | |
| cd ./$resolution | |
| ffmpeg -i "../$resolution.mp4" \ | |
| -c:v libx264 -preset veryfast -tune zerolatency \ | |
| -g 60 -sc_threshold 0 \ | |
| -hls_time 2 \ | |
| -hls_flags split_by_time \ | |
| -hls_segment_type fmp4 \ | |
| -hls_playlist_type vod \ | |
| -hls_segment_filename "./$resolution_%03d.m4s" \ | |
| "$resolution.m3u8" | |
| cd .. | |
| done | |
| echo "Rendition streams generated" | |
| IMAGE_NAME="$VIDEO_NAME"-poster.jpg | |
| echo "image name $IMAGE_NAME" | |
| ffmpeg -i $1 -vf "select=eq(n\,0)" -q:v 2 -frames:v 1 $IMAGE_NAME | |
| jpegoptim -q -m50 $IMAGE_NAME | |
| rm -rf *.mp4 | |
| echo "#EXTM3U | |
| #EXT-X-STREAM-INF:BANDWIDTH=2500000,RESOLUTION=1280x720 | |
| 720p/720p.m3u8 | |
| #EXT-X-STREAM-INF:BANDWIDTH=1500000,RESOLUTION=854x480 | |
| 480p/480p.m3u8 | |
| #EXT-X-STREAM-INF:BANDWIDTH=800000,RESOLUTION=640x360 | |
| 360p/360p.m3u8" > master.m3u8 |
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