#!/bin/bash

VIDEO=$1
LOGO=$2
VIDEO_WATERMARKED=w_${VIDEO}

VIDEO_WIDTH=`ffprobe -show_streams $VIDEO 2>&1 | grep ^width | sed s/width=//`
echo The video width is $VIDEO_WIDTH

cp $LOGO logo.png
IMAGE_WIDTH=$((VIDEO_WIDTH/3))
echo The image width will be $IMAGE_WIDTH

mogrify -resize $IMAGE_WIDTH logo.png
echo logo.png resized

echo Starting watermarking
ffmpeg -i $VIDEO -sameq -acodec copy -vf 'movie=logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]' $VIDEO_WATERMARKED
echo Video watermarked