barsandtoner

#!/bin/bash

get_width(){
    width=$(ffprobe "$1" -show_streams -select_streams v:0 2> /dev/null | grep "^width=" | cut -d = -f 2)
}

get_height(){
    height=$(ffprobe "$1" -show_streams -select_streams v:0 2> /dev/null | grep "^height=" | cut -d = -f 2)
}

get_framerate(){
    framerate=$(ffprobe "$1" -show_streams -select_streams v:0 2> /dev/null | grep "^r_frame_rate=" | cut -d = -f 2)
}

get_channels(){
    channels=$(ffprobe "$1" -show_streams -select_streams a:0 2> /dev/null | grep "^channels=" | cut -d = -f 2)
}

get_sar(){
    sar=$(ffprobe "$1" -show_streams -select_streams v:0 2> /dev/null | grep "^sample_aspect_ratio=" | cut -d = -f 2 | sed 's|:|/|g')
    if [ "$sar" = "0/1" ] ; then
        sar="1/1"
    fi
}

if [ "$#" = 0 ] ; then
    echo "This script accepts input videos and generates outputs that include bars and tone at the head, plus a timecode track."
    echo "Usage: $(basename ${0}) [ -o output_directory ] fileorpackage1 [ fileorpackage2 ... ]"
    exit
fi

# command-line options to set mediaid and original variables
OPTIND=1
while getopts ":o:x:" opt ; do
    case "${opt}" in
        o) output_dir="$OPTARG" ;;
        x) audio_offset="$OPTARG" ;;
        *) echo "bad option -$OPTARG" ; usage ;;
        :) echo "Option -$OPTARG requires an argument" ; exit 1 ;;
    esac
done
shift $(( ${OPTIND} - 1 ))

input_movie="$1"
name=`basename "$input_movie"`
if [ ! -s "$input_movie" ] ; then
   echo Hey "$input_movie" does not look like a real file.
   exit
fi
if [ ! -d "$output_dir" ] ; then
   output_dir=`dirname "$input_movie"`
fi

if [ ! "$audio_offset" ] ; then
   audio_offset="0"
fi

get_width "${input_movie}"
get_height "${input_movie}"
get_framerate "${input_movie}"
get_channels "${input_movie}"
get_sar "${input_movie}"

ffmpeg -f lavfi -i "smptebars=s=${width}x${height}:r=${framerate}:sar=${sar}:d=40.033" \
    -f lavfi -i "aevalsrc=0.141253*sin(1000*2*PI*t):d=40.033:s=48000:c=${channels}" \
    -f lavfi -i "color=black:s=${width}x${height}:r=${framerate}:sar=${sar}:d=5" \
    -f lavfi -i "aevalsrc=0:d=5:s=48000:c=${channels}" -i "${input_movie}" \
    -filter_complex "[0:v:0][1:a:0][2:v:0][3:a:0][4:v:0][4:a:0]concat=n=3:v=1:a=1[v][a];\
        [v]drawtext=fontsize=40:fontfile=/Library/Fonts/Courier New Bold.ttf:fontcolor=white:enable=gte(t\,30)*lt(t\,40):x=(w-text_w)/2:y=(h-text_h-line_h)/2:box=1:boxcolor=gray@0.9:text=${name%.*}[v1];\
        [a]asetpts=PTS+${audio_offset}/TB[a1]" \
    -map '[v1]' -map '[a1]' -shortest -c:v v210 -r 30000/1001 -metadata:s:v:0 timecode="00:59:15;00" -metadata:s:v:0 encoder="Uncompressed 10-bit 4:2:2" -c:a pcm_s24le -ac 2 -ar 48000 -y "$output_dir/${name%.*}_ohyay3.mov"