decode

#!/bin/sh

if [ -z $1 -o -z $2 ]; then
    echo "Usage: $0 <video_file> <output_file>"
    exit 1
fi
fpath="$1"
dpath="$2"

video=$(basename "$dpath")
video_base=$(echo "$video" | awk -F . '{print $1}')
dpath_base=$(echo "$dpath" | awk -F . '{print $1}')
dpath_basename=$(basename "$dpath")
ext=$(echo "$video" | awk -F . '{print $2}')
ext="avi"

stats=$(mediainfo --Inform="Video;%ID%,%DisplayAspectRatio%,%FrameRate%,%BitRate%,%CodecID%,%Encoded_Library_Settings%" "$fpath")
aspect=$(echo "$stats" | awk -F , '{print $2}')
fps=$(echo "$stats" | awk -F , '{print $3}')
bitrate=$(echo "$stats" | awk -F , '{print $4}')
codecid=$(echo "$stats" | awk -F , '{print $5}')

# decode entire video to raw video in an avi format
ffmpeg -hide_banner -y -nostdin \
        -i "$fpath" -f avi -vcodec rawvideo -pix_fmt yuv420p \
        -dn -sn -an \
            "$dpath"

if [ ! -f "$dpath" ]; then
    echo "ERROR: $dpath doesn't exist, failed to decode"
    exit 1
fi