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@CerebralMischief
Forked from kevinwright/proresproxy.sh
Created August 17, 2018 05:49
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Use ffmpeg to build prores proxies for Premiere Pro
#!/usr/bin/env bash
# Usage notes
# ===========
#
# proxy_watermark.png needs to be in the same directory as the script
# download from here: http://whoismatt.com/images/2016/7-july/adobe_proxy_logo.png
#
# on OSX, both pv and ffmpeg will need to be installed via homebrew
scriptdir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
inputfile=$1
nakedname="${inputfile%.*}"
ext="${inputfile##*.}"
outputfile="Proxies/${nakedname}-proxy.${ext}"
echo "outputfile = $outputfile"
mkdir -p Proxies
# find input resolution
# =====================
# input aspects:
# cine 4K = 4096:2160 (1.9:1 = 1.896) - proxy at 1024:540
# UHD(4K) = 3840:2160 (16:9 = 1.777) - proxy at 720p
# 1080p = 1920:1080 (16:9 = 1.777) - proxy at 720p
# 720p = 1280:720 (16:9 = 1.777)
#
# proxy aspects:
# 1024x540 = 1.9:1
# 1280x720 = 16:9
# 1536x790 = ??? (1.944)
eval $(ffprobe -v error -of flat=s=_ -select_streams v:0 -show_entries stream=height,width $inputfile)
inputres=${streams_stream_0_width}:${streams_stream_0_height}
#TODO: make this 1024:540 if source is C4K
outputres="1280:720"
echo "inputres = $inputres"
echo "outputres = $outputres"
# EXPLANATION
# ===========
#
# pv = pipeview, shows progress and estimated time
#
# -v warning turn down verbosity to only warnings
#
# -profile:v N
# where N = 0 -> proxy 1 -> lt 2 -> std 3 -> hq
#
# -i logo.png = a SECOND input file, with an overlay image
# -filter_complex "overlay=W-w-5:H-h-5/2" = make an overlay, position 5px from bottom-right
#
pv $inputfile | ffmpeg \
-loglevel warning \
-i pipe:0 \
-i $scriptdir/proxy_watermark.png \
-filter_complex "[0:v]scale=$outputres, overlay=W-w-5:H-h-5/2" \
-codec:a copy \
-codec:v prores \
-profile:v 0 \
$outputfile
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