Requires ffmpeg, mediainfo

ffmpeg_clip_and_fade.sh

#!/bin/sh

date_and_time=`date`

input_file=${1}
output_file=${2}

start_second=5
stop_second=25
framerate_in=`mediainfo -i ${input_file} | grep "Frame rate  " | awk -F " " {'print $4'}`
framerate_out=29.97
framerate=`echo $framerate_in-$framerate_out+$framerate_in`
stop_time_relative_to_origial_media_in_seconds=`echo $stop_second-$start_second | bc`
fadein_duration_in_seconds_fraction=0.75
fadeout_duration_in_seconds_fraction=1.5

start_time_in_frames=`echo $start_second*$framerate | bc`
fadein_duration_in_frames=`echo $fadein_duration_in_seconds_fraction*$framerate | bc`
fadeout_duration_in_frames=`echo $fadeout_duration_in_seconds_fraction*$framerate | bc`
fade_start_time_relative_to_origial_media_in_frames=`echo $stop_time_relative_to_origial_media_in_seconds*$framerate-$fadeout_duration_in_frames | bc`

# ADD TRIM AND ADD FADE
# ffmpeg \
# -y \
# -ss ${start_second} \
# -i ${input_file} \
# -to ${stop_time_relative_to_origial_media_in_seconds} \
# -filter_complex "[0:v]fade=in:0:${fadein_duration_in_frames},fade=out:${fade_start_time_relative_to_origial_media_in_frames}:${fadeout_duration_in_frames}[v]" \
# -filter_complex "[0:a]afade=t=in:ss=0:d=${fadein_duration_in_seconds_fraction},afade=t=out:st=${fade_start_time_relative_to_origial_media_in_frames}[a]" \
# -map "[v]" \
# -map "[a]" \
# -r $framerate_out \
# -b:v 5000k \
# -maxrate 5000k \
# -bufsize 2000k \
# -c:v libx264 \
# -c:a libfdk_aac \
# ${output_file}


# ADD TITLE CARD
# ffmpeg -i Input.mov -f lavfi -i "color=c=black:s=720x576:r=25:sar=1050/720" -filter_complex \
# "[0:v] setpts=PTS-STARTPTS [main]; \
#  [1:v] trim=end=10,setpts=PTS-STARTPTS [pre]; \
#  [1:v] trim=end=30,setpts=PTS-STARTPTS [post]; \
#  [pre][main][post] concat=n=3:v=1:a=0 [out]" \
# -map "[out]" -vcodec mpeg2video -maxrate 30000k -b:v 30000k Output.mpg

title=${date_and_time}
title_safe=`%{expr\\:title}`
ffmpeg \
-y \
-f lavfi \
-i color=c=black:s=1920x1080:d=4.0 \
-vf "drawtext=fontfile=/Library/Fonts/Arial\ Narrow.ttf:text='${title_safe}':fontsize=30:fontcolor=white:x=(w-text_w)/2:y=(h-text_h-line_h)/2:" \
~/Desktop/title_card.mp4


echo "Job's done! ${title_safe}"