58 lines
1.6 KiB
Batchfile
58 lines
1.6 KiB
Batchfile
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@echo off
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if "%1"=="" (
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echo Please provide the input file as the first argument.
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goto :eof
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)
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if "%2"=="" (
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echo Please provide the scale as the third argument.
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goto :eof
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)
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if "%3"=="" (
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echo Please provide the output file name as the fourth argument.
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goto :eof
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)
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set input_file=%1
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set scale_width=%2
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if "%scale_width%"=="0" (
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set scale_width=-1
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)
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set output_file=%3
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set video_string="scale=%scale_width%:-1"
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if not "%4"=="" (
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set video_string=%video_string%,colorkey=%4:0.1:0.1
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)
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set temp_folder=%temp%\sprite_sheet_frames
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mkdir %temp_folder%
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ffprobe -loglevel error -stats -select_streams -count_frames -show_entries stream=nb_read_frames -print_format default=nokey=1:noprint_wrappers=1 %input_file% > %temp_folder%/frame_count.txt
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set /p frame_count=<%temp_folder%/frame_count.txt
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set /a row=1
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set /a col=%frame_count%/%row%
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:loop
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set /a col=%frame_count%/%row%
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if %row% gtr %col% (
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goto found
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)
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set /a row=%row%+1
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goto loop
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:found
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set /a col=%col%+1
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ffmpeg -i %input_file% -nostats -loglevel 0 -vf "%video_string%,split[a][b];[a]alphaextract[am];[b][am]alphamerge" "%temp_folder%/frame_%%04d.bmp"
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ffmpeg -i "%temp_folder%/frame_%%04d.bmp" -nostats -loglevel 0 -filter_complex tile=%row%x%col% -update true %output_file%
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ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "%temp_folder%/frame_0001.bmp" > %temp_folder%/frame_size.txt
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set /p frame_size=<%temp_folder%/frame_size.txt
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rmdir %temp_folder% /Q/S
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echo Done, the sprite sheet is saved as %output_file%. There are %frame_count% frames on a grid of size %row%x%col% with a frame size of %frame_size%
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