125 lines
4.3 KiB
Bash
125 lines
4.3 KiB
Bash
#!/bin/bash
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# slated_output.bash
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# Add slate to the beginning of a movie
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# by Jamie Hardt
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# (c) 2025 Squad 51 Inc. All rights reserved.
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# This will add:
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# - a slate to the beginning of the input movie
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# - Three thumbnails taken from pre-selected times in the input movie will be
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# on the slate
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# - A lower-third text will be printed to the entire length of the outpu
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# - Then entire output will be standardized to 1920x1080
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# - Audio output is 48000 pcm_s24le
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#
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# The INPUT_FILE is expected as argument 1 on the command line, the idea being
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# you might make a copy of this script for each project and customise the
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# thumbnail positions, client and title, while the movie always changes.
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#
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# The output file will be name INPUT_FILE_slated.
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# Enter project info here
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HEADLINE="SOUND DESIGN REVIEW"
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TITLE="\"TITLE\""
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CLIENT="CLIENT"
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CONTACT="CONTACT"
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PIX_REF="PIC_REF"
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MESSAGE="MESSAGE"
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# Enter the times for each thumbnail here
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THUMB1_TIME="00:00:37"
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THUMB2_TIME="00:08:39"
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THUMB3_TIME="00:11:00"
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MESSAGE_COLOR=yellow
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# Enter the slate duration in seconds
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SLATE_DURATION="1"
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# Set a number here to play a test tone at -20 dBFS under the slate. Don't set
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# it and the slate will be silent
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# SLATE_TONE=440
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# Font for slate titles. Leave it unset for the default
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FONT=/System/Library/Fonts/Avenir.ttc
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# Set this to "-to 20" while you're testing your script out, once it looks
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# right then set it to ""
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OUTPUT_LENGTH_ARG="-to 20"
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# Set this to a positive number to move the middle block, the HEADLINE, TITLE
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# and CLIENT fields down/south, to avoid covering the thumbnails.
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MIDDLE_Y_NUDGE="80"
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# Set this to a positive number to move the lower-third and "file" field in
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# the slate up/north, to avoid covering burnins
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BOTTOM_Y_NUDGE="0"
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#################################################################################
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#####
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##### DON'T EDIT BELOW THIS LINE
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if [ ! -z $FONT ]; then
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FONT=":fontfile="$FONT
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fi
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INPUT_FILE="$1"
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INPUT_BASENAME=$(basename -- "$INPUT_FILE")
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OUTPUT_FILE=$(dirname -- "$INPUT_FILE")/"${INPUT_BASENAME%.*}_slated.mov"
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SLATE_AUDIO="-f lavfi -t $SLATE_DURATION -i "
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if [ -z $SLATE_TONE ]; then
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SLATE_AUDIO+=anullsrc=r=48000:cl=stereo,aformat=sample_fmts=s32:\
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channel_layouts=stereo
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else
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SLATE_AUDIO+="sine=$SLATE_TONE:r=48000,aformat=sample_fmts=s32:"
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SLATE_AUDIO+="channel_layouts=stereo,aeval=val(ch):c=same"
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fi
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ffmpeg -y -hide_banner \
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-f lavfi -i "color=c=black:s=1920x1080:d=$SLATE_DURATION" \
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-ss $THUMB1_TIME -i "$INPUT_FILE" \
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-ss $THUMB2_TIME -i "$INPUT_FILE" \
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-ss $THUMB3_TIME -i "$INPUT_FILE" \
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-i "$INPUT_FILE" \
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$SLATE_AUDIO \
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-filter_complex "
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[1:v]trim=duration=0.04,setpts=PTS-STARTPTS,scale=560:-1,
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tpad=stop_mode=clone:stop_duration=$SLATE_DURATION[thumb1];
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[2:v]trim=duration=0.04,setpts=PTS-STARTPTS,scale=560:-1,
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tpad=stop_mode=clone:stop_duration=$SLATE_DURATION[thumb2];
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[3:v]trim=duration=0.04,setpts=PTS-STARTPTS,scale=560:-1,
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tpad=stop_mode=clone:stop_duration=$SLATE_DURATION[thumb3];
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[0:v][thumb1]overlay=100:100[tmp1];
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[tmp1][thumb2]overlay=690:100[tmp2];
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[tmp2][thumb3]overlay=1280:100[slate_raw];
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[slate_raw]
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drawtext=text='$HEADLINE':fontcolor=white:box=1:boxcolor=black@.6:
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boxborderw=10:fontsize=72:x=(w-text_w)/2:y=(h/2)-90+$MIDDLE_Y_NUDGE$FONT,
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drawtext=text='$TITLE':fontcolor=white:fontsize=48:
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x=(w-text_w)/2:y=(h/2)+$MIDDLE_Y_NUDGE$FONT,
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drawtext=text='$CLIENT':fontcolor=white:fontsize=48:
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x=(w-text_w)/2:y=(h/2)+60+$MIDDLE_Y_NUDGE$FONT,
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drawtext=text='$CONTACT':fontcolor=gray:fontsize=36:
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x=(w-text_w)/2:y=(h-(230+$BOTTOM_Y_NUDGE))$FONT,
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drawtext=text='Pix Ref\: $PIX_REF':expansion=normal:fontcolor=gray:
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fontsize=36:x=(w-text_w)/2:y=(h-(180+$BOTTOM_Y_NUDGE))$FONT[slate];
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[4:v]scale=1920:1080:force_original_aspect_ratio=decrease,
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pad=1920:1080:(ow-iw)/2:(oh-ih)/2:black, setsar=1:1[v1];
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[4:a]aresample=48000,aformat=sample_fmts=s32:channel_layouts=stereo[a1];
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[slate][5:a][v1][a1]concat=n=2:v=1:a=1[vcat][acat];
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[vcat]drawtext=text='$MESSAGE':fontcolor=$MESSAGE_COLOR:box=1:boxcolor=black:
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boxborderw=10:fontsize=42:x=(w-text_w)/2:
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y=h-(100+$BOTTOM_Y_NUDGE):fontfile=$FONT[outv]
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" \
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-map "[outv]" -map "[acat]" \
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-c:v libx264 -pix_fmt yuv420p -c:a pcm_s24le -movflags +faststart $OUTPUT_LENGTH_ARG "$OUTPUT_FILE"
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